/* Adamson University Theme Variables */
:root {
    --adu-navy: #1e3a8a;
    --adu-dark-navy: #1e40af;
    --adu-light-navy: #3b82f6;
    --adu-white: #ffffff;
    --adu-light-gray: #f8f9fa;
    --adu-dark-gray: #343a40;
    --adu-accent: #60a5fa;
    --slide-transition: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --animation-fast: 0.3s ease;
    --animation-medium: 0.6s ease;
    --animation-slow: 1s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: 
        linear-gradient(135deg, rgba(30, 58, 138, 0.9) 0%, rgba(30, 64, 175, 0.9) 100%),
        url('background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--adu-white);
    overflow: hidden;
    height: 100vh;
}

/* Navigation */
.presentation-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(30, 58, 138, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    z-index: 1000;
    border-bottom: 2px solid var(--adu-white);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-btn {
    background: var(--adu-white);
    color: var(--adu-navy);
    border: none;
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--animation-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: var(--adu-light-navy);
    color: var(--adu-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

#slideCounter {
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    min-width: 80px;
    text-align: center;
}

/* Presentation Container */
.presentation-container {
    position: relative;
    width: 100%;
    height: 100vh;
    padding-top: 70px;
}

/* Slide Styles */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(100%);
    transition: all var(--slide-transition);
    padding: 2rem;
}

/* University Watermark */
.slide::before {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-image: url('adulogo.jpg');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.3;
    pointer-events: none;
    z-index: 1;
}

/* Hide watermark on title and final slides */
.slide[data-slide="1"]::before,
.slide[data-slide="29"]::before {
    display: none;
}

.slide.active {
    opacity: 1;
    transform: translateX(0);
}

.slide.prev {
    transform: translateX(-100%);
}

.slide-content {
    max-width: 1200px;
    width: 100%;
    text-align: center;
    animation: slideIn 0.8s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Title Slide */
.title-slide {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.main-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 2rem;
    background: linear-gradient(45deg, var(--adu-white), var(--adu-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    from {
        filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.3));
    }
    to {
        filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.6));
    }
}

.subtitle-container {
    margin-bottom: 3rem;
}

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.accent-bar {
    width: 100px;
    height: 4px;
    background: var(--adu-white);
    margin: 0 auto;
    border-radius: 2px;
    animation: expandBar 1s ease-out 0.5s both;
}

@keyframes expandBar {
    from {
        width: 0;
    }
    to {
        width: 100px;
    }
}

.architecture-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.arch-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all var(--animation-medium);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.arch-item:nth-child(1) { animation-delay: 0.5s; }
.arch-item:nth-child(2) { animation-delay: 0.7s; }
.arch-item:nth-child(3) { animation-delay: 0.9s; }
.arch-item:nth-child(4) { animation-delay: 1.1s; }
.arch-item:nth-child(5) { animation-delay: 1.3s; }
.arch-item:nth-child(6) { animation-delay: 1.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.arch-item:hover {
    border-color: var(--adu-white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

/* Regular Slide Headers */
h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--adu-white);
}

.slide-description {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Cycle Diagram */
.cycle-diagram {
    position: relative;
    width: 500px;
    height: 500px;
    margin: 0 auto;
}

.cycle-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: var(--adu-white);
    color: var(--adu-navy);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
    }
}

.cycle-node {
    position: absolute;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--adu-white);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--animation-medium);
    backdrop-filter: blur(10px);
}

.cycle-node:nth-child(2) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    animation: slideInFromTop 0.8s ease-out 0.5s both;
}

.cycle-node:nth-child(3) {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    animation: slideInFromRight 0.8s ease-out 0.7s both;
}

.cycle-node:nth-child(4) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    animation: slideInFromBottom 0.8s ease-out 0.9s both;
}

.cycle-node:nth-child(5) {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    animation: slideInFromLeft 0.8s ease-out 1.1s both;
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

.cycle-node:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
}

.node-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--adu-white);
}

.node-label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.node-description {
    font-size: 0.7rem;
    opacity: 0.8;
    text-align: center;
    line-height: 1.2;
    display: none;
}

.cycle-node:hover .node-description {
    display: block;
}

/* Architecture Grid */
.architecture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    padding: 1rem;
}

.arch-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: translateY(30px);
    animation: cardSlideIn 0.6s ease-out forwards;
}

.arch-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

.arch-card:hover::before {
    left: 100%;
}

.arch-card:nth-child(1) { animation-delay: 0.1s; }
.arch-card:nth-child(2) { animation-delay: 0.2s; }
.arch-card:nth-child(3) { animation-delay: 0.3s; }
.arch-card:nth-child(4) { animation-delay: 0.4s; }
.arch-card:nth-child(5) { animation-delay: 0.5s; }
.arch-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes cardSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.arch-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--adu-white);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.arch-card[data-arch="monolithic"]:hover {
    border-color: #FF6B6B;
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.3);
}

.arch-card[data-arch="layered"]:hover {
    border-color: #4ECDC4;
    box-shadow: 0 20px 40px rgba(78, 205, 196, 0.3);
}

.arch-card[data-arch="microkernel"]:hover {
    border-color: #45B7D1;
    box-shadow: 0 20px 40px rgba(69, 183, 209, 0.3);
}

.arch-card[data-arch="hybrid"]:hover {
    border-color: #96CEB4;
    box-shadow: 0 20px 40px rgba(150, 206, 180, 0.3);
}

.arch-card[data-arch="exokernel"]:hover {
    border-color: #FFEAA7;
    box-shadow: 0 20px 40px rgba(255, 234, 167, 0.3);
}

.arch-card[data-arch="distributed"]:hover {
    border-color: #DDA0DD;
    box-shadow: 0 20px 40px rgba(221, 160, 221, 0.3);
}

.arch-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--adu-white);
    transition: all 0.3s ease;
}

.arch-card:hover .arch-icon {
    transform: scale(1.2) rotateY(360deg);
    color: var(--adu-white);
}

.arch-card h3 {
    margin: 1rem 0 0.5rem 0;
    color: var(--adu-white);
    font-size: 1.4rem;
    font-weight: 600;
}

.arch-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    line-height: 1.4;
    margin: 0;
}

/* Architecture Diagrams */
.architecture-diagram {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.monolithic-diagram {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.user-space,
.kernel-space,
.hardware-layer {
    position: relative;
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid;
}

.user-space {
    background: rgba(0, 123, 255, 0.1);
    border-color: #007bff;
    min-height: 100px;
}

.kernel-space {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--adu-white);
    min-height: 150px;
}

.hardware-layer {
    background: rgba(108, 117, 125, 0.1);
    border-color: #6c757d;
    min-height: 60px;
}

.space-label {
    position: absolute;
    top: -12px;
    left: 1rem;
    background: var(--adu-navy);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--adu-white);
}

.app-container,
.kernel-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.app,
.kernel-service {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    min-width: 100px;
    animation: serviceSlideIn 0.6s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

.app {
    background: #007bff;
    color: white;
}

.kernel-service {
    background: var(--adu-white);
    color: var(--adu-navy);
}

.app:nth-child(1) { animation-delay: 0.2s; }
.app:nth-child(2) { animation-delay: 0.4s; }
.app:nth-child(3) { animation-delay: 0.6s; }

.kernel-service:nth-child(1) { animation-delay: 0.8s; }
.kernel-service:nth-child(2) { animation-delay: 1.0s; }
.kernel-service:nth-child(3) { animation-delay: 1.2s; }
.kernel-service:nth-child(4) { animation-delay: 1.4s; }
.kernel-service:nth-child(5) { animation-delay: 1.6s; }

@keyframes serviceSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.key-point {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border-left: 4px solid var(--adu-white);
}

.key-point i {
    color: var(--adu-gold);
    font-size: 1.2rem;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 1000;
}

.progress-fill {
    height: 100%;
    background: var(--adu-white);
    width: 3.45%; /* 1/29 slides */
    transition: width var(--slide-transition);
}

/* Timeline Animation */
.timeline-item {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.timeline-item.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item:hover {
    transform: translateX(10px) scale(1.02);
}

/* Performance Charts */
.bar {
    opacity: 0;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: all 0.8s ease-out;
    position: relative;
    overflow: hidden;
}

.bar.animate-bar {
    opacity: 1;
    transform: scaleY(1);
}

.bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.1) 75%, transparent 75%);
    background-size: 20px 20px;
    animation: barStripes 1s linear infinite;
}

@keyframes barStripes {
    0% { background-position: 0 0; }
    100% { background-position: 20px 0; }
}

/* Key Takeaways Animation */
.takeaway-item {
    opacity: 0;
    transform: translateY(30px) scale(0.9);
    transition: all 0.8s ease-out;
}

.takeaway-item.animate-in {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.takeaway-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

/* Rating Animation */
.rating-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.rating {
    position: relative;
    overflow: hidden;
    width: 100px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.rating::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--rating-width, 0%);
    background: linear-gradient(90deg, #FFD700, #FFA500);
    border-radius: 10px;
    transition: width 1s ease-out;
}

.rating.animate-rating::before {
    animation: ratingFill 1s ease-out;
}

.rating-text {
    font-size: 12px;
    color: var(--adu-white);
    text-align: center;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease-out;
}

@keyframes ratingFill {
    0% { width: 0%; }
    100% { width: var(--rating-width); }
}

/* Comparison Legend */
.comparison-legend {
    margin-top: 40px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.comparison-legend h3 {
    color: var(--adu-white);
    margin-bottom: 15px;
    text-align: center;
    font-size: 18px;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.legend-item {
    color: var(--adu-white);
    font-size: 14px;
    line-height: 1.4;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
    border-left: 3px solid var(--adu-gold);
}

.legend-item strong {
    color: var(--adu-gold);
}

/* Microkernel Diagram */
.microkernel-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin: 40px 0;
    position: relative;
    height: 400px;
}

.user-space-servers {
    display: flex;
    gap: 20px;
    z-index: 2;
}

.server {
    background: linear-gradient(135deg, var(--adu-blue), var(--adu-dark-blue));
    color: var(--adu-white);
    padding: 15px 20px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.server:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.microkernel-core {
    background: linear-gradient(135deg, var(--adu-white), #f0f0f0);
    color: var(--adu-dark-blue);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.kernel-minimal {
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 10px;
}

.kernel-services {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.kernel-services span {
    background: var(--adu-blue);
    color: var(--adu-white);
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9em;
}

.hardware-layer {
    background: linear-gradient(135deg, #333, #555);
    color: var(--adu-white);
    padding: 15px 40px;
    border-radius: 8px;
    font-weight: 600;
    z-index: 2;
}

/* IPC Lines Animation */
.ipc-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.ipc-line {
    position: absolute;
    background: linear-gradient(90deg, var(--adu-blue), var(--adu-white), var(--adu-blue));
    height: 2px;
    border-radius: 1px;
    opacity: 0;
    animation: ipcPulse 2s ease-in-out infinite;
    transform-origin: left center;
}

.ipc-line:nth-child(1) {
    top: 25%;
    left: 20%;
    width: 60%;
    animation-delay: 0s;
}

.ipc-line:nth-child(2) {
    top: 50%;
    left: 15%;
    width: 70%;
    animation-delay: 0.7s;
}

.ipc-line:nth-child(3) {
    top: 75%;
    left: 25%;
    width: 50%;
    animation-delay: 1.4s;
}

@keyframes ipcPulse {
    0%, 100% {
        opacity: 0;
        transform: scaleX(0);
    }
    50% {
        opacity: 1;
        transform: scaleX(1);
    }
}

/* IPC Message Visualization */
.ipc-visual {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--adu-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--adu-blue);
    z-index: 2;
}

/* Concept Animation Styles */
.server {
    opacity: 0;
    transform: translateY(-30px) scale(0.8);
    transition: all 0.6s ease-out;
}

.server.animate-in {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.microkernel-core {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s ease-out;
}

.microkernel-core.animate-in {
    opacity: 1;
    transform: scale(1);
}

.ipc-line.animate-in {
    animation: ipcPulse 2s ease-in-out infinite;
}

/* Hybrid Architecture Styles */
.hybrid-layer, .hybrid-component {
    opacity: 0;
    transform: translateX(-50px) scale(0.9);
    transition: all 0.7s ease-out;
}

.hybrid-layer.animate-in, .hybrid-component.animate-in {
    opacity: 1;
    transform: translateX(0) scale(1);
}

/* Exokernel Architecture Styles */
.exokernel-component, .libos-component {
    opacity: 0;
    transform: translateY(30px) rotateX(15deg);
    transition: all 0.6s ease-out;
    perspective: 1000px;
}

.exokernel-component.animate-in, .libos-component.animate-in {
    opacity: 1;
    transform: translateY(0) rotateX(0);
}

/* Distributed Architecture Styles */
.distributed-node, .network-connection {
    opacity: 0;
    transform: scale(0.7) rotate(10deg);
    transition: all 0.8s ease-out;
}

.distributed-node.animate-in, .network-connection.animate-in {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.distributed-node:hover {
    transform: scale(1.05) rotate(-2deg);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* Performance Charts */
.performance-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.chart-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chart-container h4 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    font-size: 1.3rem;
}

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 300px;
    justify-content: space-around;
}

.bar {
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
    overflow: hidden;
    min-height: 40px;
}

.bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--adu-white));
    border-radius: 8px;
    transition: width 1.5s ease-out;
    width: 0;
    z-index: -1;
}

.bar[data-value="1"]::before { width: 20%; }
.bar[data-value="2"]::before { width: 40%; }
.bar[data-value="3"]::before { width: 60%; }
.bar[data-value="4"]::before { width: 80%; }
.bar[data-value="5"]::before { width: 100%; }

.bar:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(var(--accent-rgb), 0.3);
}

.bar[data-arch="monolithic"] {
    background: linear-gradient(90deg, #FF6B6B, transparent);
}

.bar[data-arch="layered"] {
    background: linear-gradient(90deg, #4ECDC4, transparent);
}

.bar[data-arch="microkernel"] {
    background: linear-gradient(90deg, #45B7D1, transparent);
}

.bar[data-arch="hybrid"] {
    background: linear-gradient(90deg, #96CEB4, transparent);
}

.bar[data-arch="exokernel"] {
    background: linear-gradient(90deg, #FFEAA7, transparent);
}

.bar[data-arch="distributed"] {
    background: linear-gradient(90deg, #DDA0DD, transparent);
}

/* Chart Animation */
.chart-container.animate .bar::before {
    animation: barGrow 1.5s ease-out forwards;
}

@keyframes barGrow {
    from { width: 0; }
    to { width: var(--target-width, 100%); }
}

/* Trade-off Matrix */
.tradeoff-matrix {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 500px;
    margin: 2rem 0;
}

.tradeoff-axis {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 2rem;
    width: 600px;
    height: 400px;
    position: relative;
    border: 2px solid var(--accent-color);
    border-radius: 15px;
    padding: 1rem;
}

.axis-label {
    position: absolute;
    font-weight: bold;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.axis-label.vertical {
    left: -60px;
    top: 50%;
    transform: rotate(-90deg) translateY(-50%);
    transform-origin: center;
}

.axis-label.horizontal {
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
}

.quadrant {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.quadrant:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
    border-color: var(--accent-color);
}

.quadrant h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-color);
    line-height: 1.3;
}

.arch-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.arch {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.arch:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.arch.monolithic {
    background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
    color: white;
}

.arch.layered {
    background: linear-gradient(135deg, #4ECDC4, #6EDDD6);
    color: white;
}

.arch.microkernel {
    background: linear-gradient(135deg, #45B7D1, #67C3DD);
    color: white;
}

.arch.hybrid {
    background: linear-gradient(135deg, #96CEB4, #A8D5C4);
    color: white;
}

.arch.exokernel {
    background: linear-gradient(135deg, #FFEAA7, #FFF0B7);
    color: #333;
}

.arch.distributed {
    background: linear-gradient(135deg, #DDA0DD, #E6B3E6);
    color: white;
}

/* Matrix Animation */
.tradeoff-matrix.animate .quadrant {
    animation: quadrantFadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.tradeoff-matrix.animate .quadrant:nth-child(1) { animation-delay: 0.2s; }
.tradeoff-matrix.animate .quadrant:nth-child(2) { animation-delay: 0.4s; }
.tradeoff-matrix.animate .quadrant:nth-child(3) { animation-delay: 0.6s; }
.tradeoff-matrix.animate .quadrant:nth-child(4) { animation-delay: 0.8s; }

@keyframes quadrantFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Case Study Styles */
.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-study {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.case-study:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.case-header h4 {
    margin: 0;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.case-header i {
    margin-right: 0.5rem;
}

.arch-type {
    background: var(--accent-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.use-case {
    background: rgba(var(--accent-rgb), 0.2);
    padding: 0.8rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-style: italic;
    text-align: center;
}

.strengths, .challenges {
    margin-bottom: 1rem;
}

.strengths ul, .challenges ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.strengths li {
    color: #4CAF50;
}

.challenges li {
    color: #FF9800;
}

/* Design Principles Styles */
.principles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.principle-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    backdrop-filter: blur(10px);
}

.principle-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.principle-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.principle-item h4 {
    color: var(--accent-color);
    margin: 0.5rem 0;
    font-size: 1.2rem;
}

.principle-item p {
    margin: 1rem 0;
    line-height: 1.6;
}

.principle-example {
    background: rgba(var(--accent-rgb), 0.2);
    padding: 0.8rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-style: italic;
    margin-top: 1rem;
}

/* Animation for principle items */
.principle-item[data-principle="separation"] {
    animation-delay: 0.1s;
}

.principle-item[data-principle="abstraction"] {
    animation-delay: 0.2s;
}

.principle-item[data-principle="modularity"] {
    animation-delay: 0.3s;
}

.principle-item[data-principle="performance"] {
    animation-delay: 0.4s;
}

.principle-item[data-principle="reliability"] {
    animation-delay: 0.5s;
}

.principle-item[data-principle="security"] {
    animation-delay: 0.6s;
}

/* Simulation Styles */
.monolithic-simulation, .layered-simulation, .microkernel-simulation {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.simulation-step {
    display: flex;
    align-items: center;
    padding: 1rem;
    margin: 0.5rem 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.simulation-step.active {
    border-left-color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.2);
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.simulation-step.completed {
    border-left-color: #4CAF50;
    background: rgba(76, 175, 80, 0.1);
    opacity: 0.8;
}

.step-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.2rem;
    color: white;
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.step-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* Live Simulation Interface Styles */
.live-simulation-ui {
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.1), rgba(255, 215, 0, 0.05));
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    border: 2px solid rgba(255, 215, 0, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.simulation-controls-panel {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.input-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.control-group label {
    min-width: 120px;
    font-weight: 600;
    color: var(--adu-gold);
}

.slider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--adu-gold);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--adu-gold);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.value-display {
    min-width: 60px;
    text-align: right;
    font-weight: bold;
    color: white;
}

.action-controls {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    justify-content: center;
}

.live-btn {
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.live-btn.primary {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
}

.live-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.6);
}

.live-btn.secondary {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
    color: #333;
    box-shadow: 0 4px 15px rgba(255, 193, 7, 0.4);
}

.live-btn.secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.6);
}

.live-btn.tertiary {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.4);
}

.live-btn.tertiary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.6);
}

.live-metrics-panel {
    margin-bottom: 2rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.metric-card {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    border: 2px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
}

.metric-card:hover {
    border-color: rgba(255, 215, 0, 0.5);
    transform: translateY(-2px);
}

.metric-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--adu-gold);
    margin-bottom: 1rem;
}

.metric-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.metric-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
}

.cpu-fill {
    background: linear-gradient(90deg, #28a745, #20c997);
}

.memory-fill {
    background: linear-gradient(90deg, #007bff, #6610f2);
}

.latency-fill {
    background: linear-gradient(90deg, #ffc107, #fd7e14);
}

.ipc-fill {
    background: linear-gradient(90deg, #e83e8c, #6f42c1);
}

.live-timeline {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    position: relative;
}

.timeline-header {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--adu-gold);
    margin-bottom: 1rem;
    text-align: center;
}

.timeline-track {
    min-height: 60px;
    position: relative;
    border-left: 3px solid rgba(255, 215, 0, 0.3);
    padding-left: 2rem;
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    opacity: 0;
    animation: timelineSlideIn 0.5s ease forwards;
}

.timeline-item.active {
    animation: timelinePulse 1s ease infinite;
}

.timeline-item.completed {
    opacity: 0.8;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--adu-gold);
    margin-right: 1rem;
    position: relative;
    left: -2.25rem;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.timeline-dot.success {
    background: #28a745;
    box-shadow: 0 0 10px rgba(40, 167, 69, 0.5);
}

.timeline-label {
    flex: 1;
    font-weight: 500;
    color: white;
}

.timeline-time {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Courier New', monospace;
}

.timeline-cursor {
    position: absolute;
    top: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--adu-gold), transparent);
    transition: left 0.3s ease;
    left: 0;
}

.performance-summary {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.2), rgba(32, 201, 151, 0.1));
    border: 2px solid rgba(40, 167, 69, 0.5);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 2rem;
    animation: summarySlideIn 0.5s ease;
}

.performance-summary h4 {
    color: #28a745;
    margin-bottom: 1rem;
    text-align: center;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.8rem;
}

.stat {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
}

.stat strong {
    color: var(--adu-gold);
}

.live-active {
    border-color: #28a745 !important;
    background: rgba(40, 167, 69, 0.2) !important;
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(40, 167, 69, 0.4) !important;
    animation: liveActivePulse 1s ease infinite;
}

/* Animations */
@keyframes timelineSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes timelinePulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes summarySlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes liveActivePulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(40, 167, 69, 0.4);
    }
    50% {
        box-shadow: 0 0 30px rgba(40, 167, 69, 0.8);
    }
}

/* Responsive Design for Live Simulations */
@media (max-width: 768px) {
    .simulation-controls-panel {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .summary-stats {
        grid-template-columns: 1fr;
    }
    
    .live-btn {
        font-size: 0.8rem;
        padding: 0.6rem 1rem;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .control-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .control-group label {
        min-width: auto;
    }
}

/* Layer Architecture Specific */
.layer {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 1rem;
    margin: 0.5rem 0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.layer.processing {
    border-color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.2);
    transform: scale(1.02);
}

.layer.completed {
    border-color: #4CAF50;
    background: rgba(76, 175, 80, 0.1);
}

/* Microkernel Architecture Specific */
.component {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 1rem;
    margin: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.component.active {
    border-color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.2);
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.3);
}

.ipc-message {
    position: relative;
    padding: 0.5rem 1rem;
    background: rgba(255, 215, 0, 0.2);
    border-radius: 20px;
    margin: 0.5rem 0;
    transition: all 0.3s ease;
}

.ipc-message.sending {
    background: rgba(var(--accent-rgb), 0.3);
    transform: translateX(10px);
}

.ipc-message.received {
    background: rgba(76, 175, 80, 0.2);
    transform: translateX(0);
}

/* Animation Keyframes */
@keyframes dataFlow {
    0% { transform: translateX(-20px) scale(0); opacity: 0; }
    50% { transform: translateX(0) scale(1); opacity: 1; }
    100% { transform: translateX(20px) scale(0); opacity: 0; }
}

@keyframes layerScan {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes ipcTravel {
    0% { transform: translateX(0) translateY(0); opacity: 1; }
    50% { transform: translateX(50px) translateY(-10px); opacity: 0.8; }
    100% { transform: translateX(100px) translateY(0); opacity: 0; }
}

@keyframes ripple {
    0% { transform: scale(0); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

@keyframes slideInUp {
    0% { transform: translateY(30px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes fadeInScale {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Interactive Elements */
.interactive-button {
    background: linear-gradient(135deg, var(--accent-color), #FFB300);
    border: none;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.interactive-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.interactive-button:active {
    transform: translateY(0);
}

/* Progress Indicators */
.simulation-progress {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin: 1rem 0;
}

.simulation-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), #FFB300);
    border-radius: 2px;
    transition: width 0.3s ease;
    width: 0%;
}

/* Responsive Design */
@media (max-width: 768px) {
    .presentation-nav {
        padding: 0 1rem;
        height: 60px;
    }
    
    .nav-brand span {
        display: none;
    }
    
    .presentation-container {
        padding-top: 60px;
    }
    
    .slide {
        padding: 1rem;
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .cycle-diagram {
        width: 350px;
        height: 350px;
    }
    
    .cycle-center {
        width: 100px;
        height: 100px;
        font-size: 0.9rem;
    }
    
    .cycle-node {
        width: 80px;
        height: 80px;
    }
    
    .node-icon {
        font-size: 1.2rem;
    }
    
    .node-label {
        font-size: 0.8rem;
    }
    
    .architecture-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .arch-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav-controls {
        gap: 0.5rem;
    }
    
    .nav-btn {
        width: 35px;
        height: 35px;
        padding: 0.4rem;
    }
    
    #slideCounter {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
        min-width: 70px;
    }
    
    .cycle-diagram {
        width: 280px;
        height: 280px;
    }
    
    .cycle-center {
        width: 80px;
        height: 80px;
        font-size: 0.8rem;
    }
    
    .cycle-node {
        width: 60px;
        height: 60px;
    }
    
    .node-icon {
        font-size: 1rem;
    }
    
    .node-label {
        font-size: 0.7rem;
    }
    
    /* Mobile-specific interactive elements */
    .trends-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .decision-matrix {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .case-study-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .trend-item, .decision-card, .case-study {
        padding: 1rem;
        margin: 0.5rem 0;
    }
    
    .trend-icon, .scenario-icon {
        font-size: 2rem;
    }
    
    .performance-charts {
        flex-direction: column;
        gap: 1rem;
    }
    
    .chart-container {
        min-width: auto;
        width: 100%;
    }
    
    .tradeoff-matrix {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .quadrant {
        min-height: 150px;
    }
}

/* Tablet responsive design */
@media (min-width: 481px) and (max-width: 1024px) {
    .trends-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .decision-matrix {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .case-study-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .architecture-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .performance-charts {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .tradeoff-matrix {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

/* Large screen optimizations */
@media (min-width: 1400px) {
    .presentation-container {
        max-width: 1400px;
        margin: 0 auto;
    }
    
    .trends-container {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .decision-matrix {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .case-study-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .architecture-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Touch-friendly interactions */
@media (hover: none) and (pointer: coarse) {
    .trend-item:hover, .decision-card:hover, .case-study:hover {
        transform: none;
        box-shadow: none;
    }
    
    .trend-item:active, .decision-card:active, .case-study:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
        background: rgba(255, 255, 255, 0.1);
    }
    
    .nav-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .arch-card:hover {
        transform: none;
    }
    
    .arch-card:active {
        transform: scale(0.95);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
    
    .nav-btn:active {
        transform: scale(0.95);
        background: rgba(255, 255, 255, 0.2);
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .trend-icon, .scenario-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Live Simulation Styles */
.live-simulation-ui {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 2px solid rgba(255, 215, 0, 0.3);
    backdrop-filter: blur(10px);
}

.simulation-controls-panel {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.input-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.control-group label {
    min-width: 120px;
    font-weight: 600;
    color: var(--adu-gold);
    font-size: 0.9rem;
}

.slider {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--adu-gold);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--adu-gold);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.value-display {
    min-width: 60px;
    text-align: right;
    font-weight: 600;
    color: white;
    font-size: 0.9rem;
}

.action-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
}

.live-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.live-btn.primary {
    background: linear-gradient(135deg, var(--adu-gold), #ffd700);
    color: var(--adu-maroon);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.live-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.live-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 215, 0, 0.3);
}

.live-btn.secondary:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--adu-gold);
}

.live-btn.tertiary {
    background: rgba(220, 53, 69, 0.2);
    color: #ff6b7a;
    border: 2px solid rgba(220, 53, 69, 0.3);
}

.live-btn.tertiary:hover {
    background: rgba(220, 53, 69, 0.3);
    border-color: #dc3545;
}

.live-metrics-panel {
    margin-bottom: 2rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.metric-card {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    text-align: center;
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.15);
}

.metric-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--adu-gold);
    margin-bottom: 0.75rem;
    font-family: 'Courier New', monospace;
}

.metric-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.metric-fill {
    height: 100%;
    width: 0%;
    border-radius: 3px;
    transition: width 0.5s ease;
    position: relative;
}

.cpu-fill {
    background: linear-gradient(90deg, #28a745, #20c997);
}

.memory-fill {
    background: linear-gradient(90deg, #007bff, #6610f2);
}

.latency-fill {
    background: linear-gradient(90deg, #ffc107, #fd7e14);
}

.ipc-fill {
    background: linear-gradient(90deg, #e83e8c, #6f42c1);
}

.live-timeline {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.timeline-header {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--adu-gold);
    margin-bottom: 1rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-track {
    position: relative;
    min-height: 60px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.timeline-cursor {
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--adu-gold);
    border-radius: 2px;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.timeline-cursor.active {
    opacity: 1;
    animation: pulse 1s ease-in-out infinite alternate;
}

.timeline-step {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
}

.timeline-step.active {
    background: var(--adu-gold);
    color: var(--adu-maroon);
    font-weight: 600;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.timeline-step.completed {
    background: rgba(40, 167, 69, 0.3);
    border-color: #28a745;
    color: #28a745;
}

/* Performance Summary Modal */
.performance-summary {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--adu-maroon);
    border: 2px solid var(--adu-gold);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    z-index: 10000;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.performance-summary h3 {
    color: var(--adu-gold);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.summary-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.summary-metric {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.summary-metric .label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.summary-metric .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--adu-gold);
    font-family: 'Courier New', monospace;
}

.close-summary {
    display: block;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    background: var(--adu-gold);
    color: var(--adu-maroon);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-summary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

/* Reduced Motion for Performance */
.reduced-motion * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

.reduced-motion .parallax-bg {
    transform: none !important;
}

.reduced-motion .hover-lift:hover {
    transform: none !important;
}

/* Responsive Navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem;
    z-index: 1000;
}

.mobile-nav .nav-btn {
    padding: 0.75rem 1rem;
    margin: 0 0.25rem;
    font-size: 0.9rem;
    border-radius: 8px;
}

.mobile-nav .slide-counter {
    font-size: 0.8rem;
    margin: 0 0.5rem;
}

/* Responsive Breakpoint Classes */
.mobile-view .complex-animation {
    display: none;
}

.mobile-view .simplified-content {
    display: block;
}

.desktop-view .simplified-content {
    display: none;
}

.tablet-view .architecture-grid {
    grid-template-columns: repeat(2, 1fr);
}

.mobile-view .architecture-grid {
    grid-template-columns: 1fr;
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .presentation-nav {
        height: 50px;
    }
    
    .presentation-container {
        padding-top: 50px;
    }
    
    .slide {
        padding: 0.5rem;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .cycle-diagram {
        width: 250px;
        height: 250px;
    }
    
    .architecture-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    
    .arch-card {
        padding: 0.5rem;
    }
    
    .arch-card h3 {
        font-size: 0.9rem;
    }
    
    .arch-card p {
        font-size: 0.7rem;
    }
}

/* Animation Classes */
.animate-in {
    animation: slideIn 0.8s ease-out;
}

.animate-out {
    animation: slideOut 0.6s ease-in;
}

@keyframes slideOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-30px);
    }
}

/* Interactive Elements */
.trend-item, .decision-card, .case-study {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.trend-item::before, .decision-card::before, .case-study::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 0.5s;
}

.trend-item:hover::before, .decision-card:hover::before, .case-study:hover::before {
    left: 100%;
}

.trend-item:hover, .decision-card:hover, .case-study:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--adu-gold);
}

/* Trend Items */
.trends-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.trend-item {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
}

.trend-icon {
    font-size: 3rem;
    color: var(--adu-gold);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.trend-item:hover .trend-icon {
    transform: scale(1.2) rotate(5deg);
}

.trend-item h4 {
    color: var(--adu-gold);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.trend-item .examples {
    background: rgba(255, 215, 0, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-top: 1rem;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

/* Decision Matrix */
.decision-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.decision-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
}

.scenario-icon {
    font-size: 2.5rem;
    color: var(--adu-gold);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.decision-card:hover .scenario-icon {
    transform: scale(1.15) rotate(-5deg);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.decision-card h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.decision-card p strong {
    color: var(--adu-gold);
    font-size: 1.1rem;
}

/* Case Studies */
.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-study {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.case-header {
    background: linear-gradient(135deg, var(--adu-maroon), #8B0000);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.case-header h4 {
    color: white;
    margin: 0;
    font-size: 1.3rem;
}

.arch-type {
    background: var(--adu-gold);
    color: var(--adu-maroon);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 600;
}

.case-content {
    padding: 2rem;
}

.use-case {
    background: rgba(255, 215, 0, 0.1);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--adu-gold);
    font-style: italic;
}

.strengths, .challenges {
    margin-bottom: 1.5rem;
}

.strengths strong {
    color: #4CAF50;
}

.challenges strong {
    color: #FF6B6B;
}

.case-study ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.case-study li {
    margin-bottom: 0.3rem;
    opacity: 0.9;
}

/* Animation Classes */
.animate-in {
    animation: slideInUp 0.6s ease-out forwards;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Progressive Reveal */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Pros and Cons Styles */
.pros-cons-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    width: 100%;
}

.pros-section, .cons-section {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.pros-section {
    border-color: rgba(76, 175, 80, 0.5);
    background: rgba(76, 175, 80, 0.1);
}

.cons-section {
    border-color: rgba(244, 67, 54, 0.5);
    background: rgba(244, 67, 54, 0.1);
}

.pros-section h4, .cons-section h4 {
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pros-section h4 {
    color: #4CAF50;
}

.cons-section h4 {
    color: #f44336;
}

.pros-section ul, .cons-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pros-section li, .cons-section li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    padding-left: 1.5rem;
}

.pros-section li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4CAF50;
    font-weight: bold;
}

.cons-section li:before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #f44336;
    font-weight: bold;
}

.examples-section {
    grid-column: 1 / -1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 1.5rem;
    margin-top: 1rem;
    border: 2px solid rgba(255, 215, 0, 0.3);
}

.examples-section h4 {
    color: var(--adu-gold);
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.os-examples {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.os-examples span {
    background: linear-gradient(135deg, var(--adu-gold), #ffd54f);
    color: var(--adu-maroon);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.os-examples span:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
}

@media (max-width: 768px) {
    .pros-cons-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .os-examples {
        gap: 1rem;
    }
    
    .os-examples span {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* Enhanced University Branding */
.presenter-details {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.presenter-details h4 {
    color: var(--adu-gold);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.presenter-details p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0.3rem 0;
    font-size: 1rem;
}

.university-branding {
    margin: 2rem 0;
    text-align: center;
}

.university-logo-enhanced {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(128, 0, 32, 0.1), rgba(92, 0, 23, 0.1));
    border-radius: 16px;
    border: 2px solid var(--adu-gold);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.1);
}

.logo-enhanced {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    from {
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    }
    to {
        filter: drop-shadow(0 4px 16px rgba(255, 215, 0, 0.4));
    }
}

.university-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.university-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--adu-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.university-motto {
    font-size: 1rem;
    color: var(--adu-gold);
    font-style: italic;
    font-weight: 500;
}

.university-location {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

.academic-info {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 215, 0, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.course-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--adu-gold);
    margin-bottom: 0.5rem;
}

.course-code {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.3rem;
}

.academic-year {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

/* University Footer Enhancement */
.nav-brand {
    transition: all 0.3s ease;
}

.nav-brand:hover {
    transform: scale(1.05);
}

.nav-brand .logo {
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.nav-brand:hover .logo {
    filter: drop-shadow(0 4px 8px rgba(255, 215, 0, 0.3));
    transform: rotate(5deg);
}

/* Mobile Responsive Branding */
@media (max-width: 768px) {
    .university-logo-enhanced {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .logo-enhanced {
        width: 60px;
        height: 60px;
    }
    
    .university-info {
        align-items: center;
        text-align: center;
    }
    
    .university-name {
        font-size: 1.4rem;
    }
    
    .presenter-details {
        padding: 1rem;
    }
    
    .presenter-details h4 {
        font-size: 1.1rem;
    }
}