/* Simplified CSS for Technical Presentation - CNN 1D Analysis */

/* Variables CSS */
:root {
    /* Paleta de Colores Azules */
    --color-primary: #0726D9;
    --color-secondary: #1760BF;
    --color-accent: #3D9DF2;
    --color-light-accent: #52C5F2;

    /* Paleta de Fondos y UI */
    --color-bg-dark: #031240;
    --color-bg-card: #FFFFFF;
    --color-bg-subtle: #F0F8FF;
    
    /* Paleta de Texto */
    --color-text-dark: #031240;
    --color-text-medium: #4C6173;
    --color-text-light: #FFFFFF;

    /* Colores Semánticos */
    --color-success: #27ae60;
    --color-danger: #e74c3c;
    --color-warning: #f39c12;

    /* Variables para componentes */
    --border-radius-large: 20px;
    --border-radius-medium: 15px;
    --border-radius-small: 10px;
    --shadow-light: 0 5px 15px rgba(3, 18, 64, 0.1);
    --shadow-medium: 0 10px 25px rgba(3, 18, 64, 0.15);
    --shadow-heavy: 0 20px 40px rgba(3, 18, 64, 0.2);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-secondary) 100%);
    min-height: 100vh;
    color: var(--color-text-dark);
    overflow-x: hidden;
}

/* Presentation container */
.presentation-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

/* Slide styles */
.slide {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(15px);
    border-radius: var(--border-radius-large);
    padding: 45px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-heavy);
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.5);
    min-height: 650px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
    padding-bottom: 80px;
}

.slide.hidden {
    display: none;
}

.slide:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px rgba(3, 18, 64, 0.25);
}

/* Typography */
.slide h1 {
    color: var(--color-text-dark);
    font-size: 2.8rem;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(3, 18, 64, 0.1);
    background: linear-gradient(135deg, var(--color-text-dark), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.farewell-title {
    color: var(--color-primary) !important;
    font-size: 3.5rem !important;
    text-align: center;
    margin-bottom: 35px;
    text-shadow: 0 3px 6px rgba(7, 38, 217, 0.3);
    background: none !important;
    -webkit-text-fill-color: var(--color-primary) !important;
}

.farewell-message {
    text-align: center;
    font-size: 1.4rem;
    color: var(--color-text-medium);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.slide h2 {
    color: var(--color-text-dark);
    font-size: 2.2rem;
    margin-bottom: 35px;
    border-bottom: 4px solid var(--color-accent);
    padding-bottom: 12px;
    font-weight: 600;
    position: relative;
}

.slide h2::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.slide h3 {
    color: var(--color-secondary);
    font-size: 1.5rem;
    margin: 30px 0 18px 0;
    font-weight: 600;
}

.slide h4 {
    color: var(--color-secondary);
    font-size: 1.3rem;
    margin: 20px 0 12px 0;
    font-weight: 600;
}

.slide p, .slide li {
    line-height: 1.7;
    margin-bottom: 12px;
    font-size: 1.1rem;
    color: var(--color-text-dark);
}

.slide ul {
    margin: 25px 0;
    padding-left: 25px;
}

.slide li {
    margin-bottom: 8px;
    position: relative;
}

.slide li::marker {
    color: var(--color-accent);
}

/* Progress bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-light-accent));
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(61, 157, 242, 0.5);
}

.slide-counter {
    position: fixed;
    top: 25px;
    right: 25px;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: bold;
    color: var(--color-text-dark);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-medium);
    z-index: 2000;
    backdrop-filter: blur(10px);
    font-size: 1rem;
}

/* Highlight boxes */
.highlight-box {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    color: var(--color-text-light);
    padding: 30px;
    border-radius: var(--border-radius-medium);
    margin: 35px 0;
    box-shadow: var(--shadow-medium);
    min-height: 100px;
    position: relative;
    overflow: hidden;
}

.highlight-box h3 {
    color: var(--color-text-light);
    margin-bottom: 18px;
    font-size: 1.6rem;
}

.highlight-box p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 1.2rem;
}

/* Statistics grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.stat-item {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-light-accent) 100%);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    text-align: center;
    color: var(--color-text-dark);
    font-weight: bold;
    box-shadow: var(--shadow-medium);
    min-height: 120px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 35px rgba(61, 157, 242, 0.3);
}

.stat-item h3 {
    color: var(--color-text-dark);
    font-size: 2rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.stat-item p {
    color: var(--color-secondary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
}

/* Dataset cards */
.dataset-card {
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    margin: 20px 0;
    border-left: 6px solid var(--color-secondary);
    color: var(--color-text-dark);
    box-shadow: var(--shadow-light);
    min-height: 140px;
    transition: var(--transition-smooth);
}

.dataset-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-medium);
    border-left-color: var(--color-primary);
}

.dataset-card h3 {
    color: var(--color-text-dark);
    margin-bottom: 18px;
    font-size: 1.4rem;
}

/* Methodology steps */
.methodology-step {
    background: rgba(61, 157, 242, 0.12);
    padding: 20px;
    border-radius: var(--border-radius-small);
    margin: 15px 0;
    border-left: 5px solid var(--color-accent);
    color: var(--color-text-dark);
    box-shadow: var(--shadow-light);
    min-height: 60px;
    transition: var(--transition-smooth);
}

.methodology-step:hover {
    transform: translateX(3px);
    background: rgba(61, 157, 242, 0.18);
    border-left-color: var(--color-primary);
}

.methodology-step strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Advantages and disadvantages */
.advantages-disadvantages {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.advantages {
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    color: var(--color-text-dark);
    box-shadow: var(--shadow-light);
    border: 2px solid var(--color-success);
    position: relative;
}

.advantages::before {
    content: '✅';
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--color-bg-card);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 1.2rem;
}

.advantages h3, .advantages h4 {
    color: var(--color-success);
    margin-bottom: 15px;
}

.disadvantages {
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-secondary) 100%);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    color: var(--color-text-light);
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--color-warning);
    position: relative;
}

.disadvantages::before {
    content: '⚠️';
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--color-bg-card);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 1.2rem;
}

.disadvantages h3, .disadvantages h4 {
    color: var(--color-light-accent);
    margin-bottom: 15px;
}

.disadvantages p, .disadvantages li {
    color: var(--color-text-light);
}

/* Navigation */
.navigation {
    position: fixed;
    bottom: 35px;
    right: 35px;
    display: flex;
    gap: 15px;
    z-index: 2000;
}

.nav-btn {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-text-light);
    border: none;
    padding: 15px 25px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-medium);
    font-size: 1rem;
}

.nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(7, 38, 217, 0.4);
}

.nav-btn:active {
    transform: translateY(-1px);
}

/* Team info */
.team-info {
    margin-top: 35px;
    text-align: center;
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-light);
}

.team-info h3 {
    color: var(--color-secondary);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.team-info p {
    color: var(--color-text-dark);
    font-size: 1.2rem;
    margin: 8px 0;
    font-weight: 500;
}

/* Chart containers */
.single-chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    margin-top: 25px;
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-light);
}

.single-chart-container h3 {
    margin-bottom: 25px;
    color: var(--color-primary);
}

.single-chart-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-smooth);
}

.single-chart-container img:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(3, 18, 64, 0.2);
}

.single-chart-container p {
    margin-top: 25px;
    max-width: 85%;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Chart observations */
.chart-observation {
    text-align: center;
    margin-top: 25px;
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text-medium);
    max-width: 95%;
    margin-left: auto;
    margin-right: auto;
    padding: 15px;
    background-color: rgba(61, 157, 242, 0.08);
    border-radius: var(--border-radius-small);
    border-left: 4px solid var(--color-accent);
}

/* Tables */
.comparison-table, .mfcc-table, .cnn-table {
    width: 100%;
    margin: 25px 0;
    border-collapse: collapse;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-medium);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(61, 157, 242, 0.2);
}

.comparison-table th, .comparison-table td,
.mfcc-table th, .mfcc-table td,
.cnn-table th, .cnn-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid rgba(61, 157, 242, 0.15);
    transition: var(--transition-smooth);
}

.comparison-table th, .mfcc-table th, .cnn-table th {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    color: var(--color-text-light);
    font-weight: 600;
    font-size: 1rem;
}

.comparison-table td, .mfcc-table td, .cnn-table td {
    color: var(--color-text-dark);
    font-size: 0.95rem;
}

.comparison-table tr:last-child td,
.mfcc-table tr:last-child td,
.cnn-table tr:last-child td {
    border-bottom: none;
}

.comparison-table td:first-child,
.mfcc-table td:first-child,
.cnn-table td:first-child {
    font-weight: bold;
    color: var(--color-primary);
}

.comparison-table tr:hover td,
.mfcc-table tr:hover td,
.cnn-table tr:hover td {
    background-color: rgba(61, 157, 242, 0.05);
}

/* Technical flow diagram */
.technical-title {
    text-align: center;
    border-bottom: none;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding-bottom: 0;
    font-size: 2.5rem;
}

.process-flow-diagram {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-top: 70px;
    gap: 15px;
    flex-wrap: wrap;
}

.flow-step {
    text-align: center;
    min-width: 140px;
    background: var(--color-bg-subtle);
    padding: 20px;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-light);
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.flow-step:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-medium);
}

.flow-icon {
    font-size: 3.5rem;
    line-height: 1;
    margin-bottom: 15px;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.1));
}

.flow-text {
    margin-top: 15px;
    font-weight: bold;
    color: var(--color-secondary);
    font-size: 1rem;
}

.flow-arrow {
    font-size: 3rem;
    color: var(--color-accent);
    align-self: center;
    padding-bottom: 40px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

/* Technical step layout */
.technical-step-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 45px;
    align-items: start;
    margin-top: 35px;
}

.technical-step-layout.full-width {
    grid-template-columns: 1fr;
}

.step-explanation {
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-light);
}

.step-explanation h4 {
    color: var(--color-primary);
    border-left: 4px solid var(--color-primary);
    padding-left: 15px;
    margin-bottom: 20px;
    font-size: 1.4rem;
}

/* Formula blocks */
.formula-block {
    background: var(--color-bg-subtle);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius-small);
    padding: 20px;
    margin-top: 25px;
    position: relative;
    box-shadow: var(--shadow-light);
    transition: var(--transition-smooth);
}

.formula-block:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-primary);
}

.formula-block .formula-title {
    font-weight: bold;
    color: var(--color-secondary);
    display: block;
    margin-bottom: 15px;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--color-accent);
    padding-bottom: 8px;
}

.viz-caption {
    text-align: center;
    font-style: italic;
    font-size: 0.95rem !important;
    color: var(--color-text-medium) !important;
    margin-top: 18px;
    padding: 10px;
    background: rgba(61, 157, 242, 0.05);
    border-radius: var(--border-radius-small);
}

/* Iterative cycle diagram */
.iterative-cycle-diagram {
    position: relative;
    width: 450px;
    height: 450px;
    margin: 60px auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cycle-center-text {
    position: absolute;
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-secondary));
    color: var(--color-text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1.1rem;
    font-weight: bold;
    padding: 25px;
    box-shadow: 0 0 30px rgba(3, 18, 64, 0.4);
    z-index: 10;
    border: 3px solid var(--color-accent);
}

.cycle-step {
    position: absolute;
    width: 140px;
    height: 140px;
    background: var(--color-bg-subtle);
    border: 3px solid var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(calc(72deg * var(--i))) translateY(-230px) rotate(calc(-72deg * var(--i)));
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-medium);
}

.cycle-step:hover {
    transform: rotate(calc(72deg * var(--i))) translateY(-240px) rotate(calc(-72deg * var(--i)));
    box-shadow: 0 15px 30px rgba(23, 96, 191, 0.3);
    border-color: var(--color-primary);
    background: rgba(61, 157, 242, 0.1);
}

.cycle-step h4 {
    font-size: 1rem;
    color: var(--color-text-dark);
    text-align: center;
    margin: 0;
    padding: 8px;
    line-height: 1.3;
}

/* Code blocks */
pre {
    background: #011627;
    color: #d6deeb;
    padding: 25px;
    border-radius: var(--border-radius-small);
    overflow-x: auto;
    font-family: 'Fira Code', 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    font-size: 0.9rem;
    margin: 15px 0;
    border: 1px solid var(--color-secondary);
    box-shadow: var(--shadow-medium);
    position: relative;
}

.code-description {
    font-size: 0.95rem !important;
    font-style: italic;
    color: var(--color-text-medium) !important;
    margin-top: 10px;
    margin-bottom: 25px !important;
    padding: 12px;
    background: rgba(61, 157, 242, 0.05);
    border-radius: var(--border-radius-small);
    border-left: 4px solid var(--color-accent);
}

.code-block-container {
    background-color: #011627;
    border-radius: var(--border-radius-small);
    box-shadow: var(--shadow-heavy);
    margin: 25px 0;
    overflow: hidden;
    border: 2px solid var(--color-secondary);
    transition: var(--transition-smooth);
}

.code-block-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.code-block-header {
    background: linear-gradient(135deg, #0078D4, var(--color-secondary));
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.code-block-header .code-title {
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1rem;
    font-weight: 600;
}

.window-controls {
    display: flex;
    gap: 10px;
}

.control-btn {
    width: 18px;
    height: 18px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: 'SF Mono', 'Monaco', monospace;
    font-weight: bold;
    font-size: 12px;
}

.code-block-container pre {
    background-color: transparent;
    border: none;
    margin: 0;
    padding: 20px 25px;
    font-size: 0.9rem;
    color: #d6deeb;
    white-space: pre-wrap;
    line-height: 1.5;
}

/* Footnotes */
.footnote {
    position: absolute;
    bottom: 20px;
    left: 45px;
    right: 45px;
    font-size: 0.85rem;
    font-style: italic;
    color: var(--color-text-medium);
    border-top: 2px solid rgba(61, 157, 242, 0.3);
    padding-top: 15px;
    background: rgba(240, 248, 255, 0.8);
    padding: 15px;
    border-radius: var(--border-radius-small);
    backdrop-filter: blur(5px);
}

.footnote strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Scaler explanation */
.scaler-explanation {
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin: 50px 0;
    gap: 25px;
    flex-wrap: wrap;
}

.scaler-step {
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    text-align: center;
    flex: 1;
    min-width: 250px;
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-light);
    transition: var(--transition-smooth);
}

.scaler-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-primary);
}

.scaler-step h4 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.scaler-arrow {
    font-size: 3rem;
    color: var(--color-accent);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.formula {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 1.3rem;
    color: var(--color-primary);
    background: rgba(7, 38, 217, 0.08);
    padding: 12px;
    border-radius: var(--border-radius-small);
    margin-top: 18px;
    border: 1px solid rgba(7, 38, 217, 0.2);
}

/* Iframe plot container */
.iframe-plot-container {
    width: 100%;
    height: 480px;
    margin: 20px 0;
    border-radius: var(--border-radius-medium);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--color-accent);
}

.iframe-plot-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

.plot-description {
    text-align: center;
    margin-top: 20px;
    font-size: 1.1rem !important;
    line-height: 1.6;
    padding: 15px;
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-small);
}

/* Neural network architecture */
.neural-architecture {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin: 30px 0;
    padding: 25px;
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-light);
}

.layer-box {
    padding: 20px 25px;
    border-radius: var(--border-radius-medium);
    text-align: center;
    width: 95%;
    color: var(--color-text-light);
    box-shadow: var(--shadow-medium);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg-dark);
}

.layer-box:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(3, 18, 64, 0.4);
}

.layer-box h4 {
    margin: 0 0 12px 0;
    font-size: 1.3rem;
    color: inherit;
    border-bottom: 2px solid rgba(255,255,255,0.3);
    padding-bottom: 10px;
    font-weight: 600;
}

.layer-box p {
    margin: 0 0 8px 0;
    font-size: 1rem;
    opacity: 0.95;
    color: inherit;
    line-height: 1.4;
}

.layer-box .layer-info {
    margin-top: 15px;
    text-align: center;
}

.layer-box .layer-info p {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--color-text-light);
}

.layer-box .layer-info p strong {
    color: var(--color-light-accent);
    font-weight: 600;
}

.layer-box .layer-info .output-shape {
    font-style: italic;
    color: var(--color-light-accent);
    font-weight: bold;
    font-family: 'SF Mono', monospace;
}

/* Layer types */
.layer-box.input { 
    background: linear-gradient(135deg, #1a237e 0%, #3949ab 100%); 
    border-color: #3f51b5;
}

.layer-box.conv { 
    background: linear-gradient(135deg, #0d47a1 0%, #1976d2 100%); 
    border-color: #2196f3;
}

.layer-box.pool { 
    background: linear-gradient(135deg, #01579b 0%, #0288d1 100%); 
    border-color: #03a9f4;
}

.layer-box.dense { 
    background: linear-gradient(135deg, #006064 0%, #0097a7 100%); 
    border-color: #00bcd4;
}

.layer-box.output { 
    background: linear-gradient(135deg, #1b5e20 0%, #388e3c 100%); 
    border-color: #4caf50;
}

.layer-box.dropout { 
    background: linear-gradient(135deg, #e65100 0%, #ff9800 100%); 
    border-color: #ff9800;
}

.layer-box.batch-norm {
    background: linear-gradient(135deg, #4a148c 0%, #7b1fa2 100%);
    border-color: #9c27b0;
}

.neural-architecture .arrow { 
    font-size: 2.5rem; 
    color: var(--color-secondary); 
    margin: -8px 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* CNN details */
.cnn-details {
    margin: 25px auto;
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-medium);
    padding: 25px;
    box-shadow: var(--shadow-light);
    border: 2px solid var(--color-accent);
}

.cnn-details > p {
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-text-medium);
}

.cnn-table-footnote {
    text-align: right;
    margin-top: 18px;
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-text-medium);
    padding: 10px;
    background: rgba(61, 157, 242, 0.05);
    border-radius: var(--border-radius-small);
}

/* Contact section */
.contact-section {
    margin-top: 35px;
    width: 100%;
    background: var(--color-bg-subtle);
    padding: 25px;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-light);
}

.contact-section h3 {
    color: var(--color-text-dark);
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.5rem;
}

.contact-grid {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-secondary);
    font-weight: 600;
    transition: var(--transition-smooth);
    padding: 12px 20px;
    border-radius: 25px;
    background: white;
    box-shadow: var(--shadow-light);
    border: 2px solid transparent;
}

.contact-item:hover {
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-accent);
}

.instagram-logo {
    width: 28px;
    height: 28px;
    stroke: var(--color-secondary);
    transition: var(--transition-smooth);
}

.contact-item:hover .instagram-logo {
    stroke: var(--color-primary);
}

/* Responsive design */
@media (max-width: 1200px) {
    .presentation-container {
        max-width: 95%;
        padding: 15px;
    }
    
    .technical-step-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .presentation-container {
        padding: 10px;
    }

    .slide {
        padding: 20px;
        margin-bottom: 15px;
        min-height: auto;
        padding-bottom: 60px;
    }

    .slide h1 {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }

    .farewell-title {
        font-size: 2.8rem !important;
    }

    .slide h2 {
        font-size: 1.8rem;
        margin-bottom: 25px;
        padding-bottom: 10px;
    }

    .stats-grid,
    .advantages-disadvantages,
    .technical-step-layout,
    .contact-grid,
    .scaler-explanation {
        grid-template-columns: 1fr;
        gap: 20px;
        flex-direction: column;
    }

    .navigation {
        bottom: 20px;
        right: 20px;
        gap: 10px;
    }

    .nav-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

    .slide-counter {
        top: 20px;
        right: 20px;
        padding: 10px 18px;
        font-size: 0.9rem;
    }

    .iframe-plot-container {
        height: 400px;
    }
    
    .cycle-center-text {
        width: 120px;
        height: 120px;
        font-size: 0.9rem;
        padding: 15px;
    }
    
    .cycle-step {
        width: 110px;
        height: 110px;
        transform: rotate(calc(72deg * var(--i))) translateY(-180px) rotate(calc(-72deg * var(--i)));
    }
    
    .cycle-step:hover {
        transform: rotate(calc(72deg * var(--i))) translateY(-190px) rotate(calc(-72deg * var(--i)));
    }
    
    .cycle-step h4 {
        font-size: 0.85rem;
    }

    .process-flow-diagram {
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 40px;
        gap: 20px;
    }
    
    .flow-step {
        min-width: 120px;
        margin: 15px;
    }
    
    .flow-arrow {
        display: none;
    }

    .comparison-table, .mfcc-table, .cnn-table {
        font-size: 0.8rem;
    }
    
    .comparison-table th, .comparison-table td,
    .mfcc-table th, .mfcc-table td,
    .cnn-table th, .cnn-table td {
        padding: 12px 8px;
    }

    .footnote {
        font-size: 0.8rem;
        left: 20px;
        right: 20px;
        bottom: 15px;
        padding: 12px;
    }

    .contact-grid {
        flex-direction: column;
        align-items: center;
    }

    .contact-item {
        margin: 10px 0;
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .slide {
        padding: 15px;
    }
    
    .slide h1 {
        font-size: 1.9rem;
    }
    
    .farewell-title {
        font-size: 2.3rem !important;
    }
    
    .slide h2 {
        font-size: 1.6rem;
    }
    
    .nav-btn {
        padding: 10px 15px;
        font-size: 0.85rem;
    }
    
    .slide-counter {
        padding: 8px 15px;
        font-size: 0.85rem;
    }
    
    .iframe-plot-container {
        height: 320px;
    }

    .iterative-cycle-diagram {
        width: 350px;
        height: 350px;
    }

    .cycle-center-text {
        width: 100px;
        height: 100px;
        font-size: 0.8rem;
        padding: 12px;
    }
    
    .cycle-step {
        width: 90px;
        height: 90px;
        transform: rotate(calc(72deg * var(--i))) translateY(-150px) rotate(calc(-72deg * var(--i)));
    }
    
    .cycle-step:hover {
        transform: rotate(calc(72deg * var(--i))) translateY(-160px) rotate(calc(-72deg * var(--i)));
    }
    
    .cycle-step h4 {
        font-size: 0.75rem;
        padding: 5px;
    }

    .flow-step {
        min-width: 100px;
        padding: 15px;
    }

    .flow-icon {
        font-size: 2.5rem;
    }

    .flow-text {
        font-size: 0.9rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-item h3 {
        font-size: 1.6rem;
    }

    .contact-item {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .instagram-logo {
        width: 24px;
        height: 24px;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 4px solid rgba(61, 157, 242, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-accent);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Focus indicators for accessibility */
button:focus-visible,
a:focus-visible,
.nav-btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* Text selection */
::selection {
    background: rgba(61, 157, 242, 0.2);
    color: inherit;
}

::-moz-selection {
    background: rgba(61, 157, 242, 0.2);
    color: inherit;
}