/* ============================================
   VARIABLES CSS
============================================ */
:root {
    --negro-profundo: #050505;
    --gris-carbon: #141414;
    --gris-antracita: #1e1e1e;
    --gris-medio: #2a2a2a;
    --dorado-clasico: #d4af37;
    --dorado-oscuro: #9d7d1f;
    --blanco-hueso: #f5f5f0;
    --verde-exito: #2ecc71;
    --naranja-atencion: #e67e22;
    --rojo-critico: #e74c3c;

    --shadow-soft: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-medium: 0 10px 30px rgba(0,0,0,0.5);
    --shadow-hard: 0 20px 60px rgba(0,0,0,0.8);

    --transition-fast: 0.2s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* ============================================
   RESET & BASE
============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
    background: var(--negro-profundo);
    color: var(--blanco-hueso);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 60px;
}

/* ============================================
   HERO SECTION FULLSCREEN
============================================ */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    margin-top: -60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(212,175,55,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
    z-index: 1;
}

@keyframes gridMove {
    0% { transform: translateY(0); }
    100% { transform: translateY(40px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--dorado-clasico);
    border-radius: 30px;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dorado-clasico);
    margin-bottom: 30px;
    animation: fadeInDown 0.8s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 200;
    letter-spacing: -2px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--blanco-hueso) 0%, var(--dorado-clasico) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.3rem);
    color: #999;
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--dorado-clasico);
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 10px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator::after {
    content: '↓';
    font-size: 2rem;
    color: var(--dorado-clasico);
    opacity: 0.5;
}

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

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

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-15px); }
}

/* ============================================
   CONTAINER & SECTIONS
============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 15px;
    color: var(--blanco-hueso);
}

.section-subtitle {
    font-size: 1rem;
    color: #999;
    letter-spacing: 1px;
}

/* ============================================
   MÉTRICAS VISUALES
============================================ */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.metric-card {
    background: linear-gradient(135deg, var(--gris-carbon) 0%, var(--gris-antracita) 100%);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 30px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--dorado-oscuro), var(--dorado-clasico));
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--dorado-clasico);
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.metric-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #999;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dorado-clasico);
}

.progress-bar-container {
    margin-top: 20px;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: #aaa;
}

.progress-bar {
    height: 8px;
    background: var(--gris-medio);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--dorado-oscuro), var(--dorado-clasico));
    border-radius: 10px;
    transition: width 1s ease-out;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

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

.skills-grid {
    display: grid;
    gap: 15px;
    margin-top: 20px;
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    font-size: 0.9rem;
    color: #ccc;
}

.skill-level {
    display: flex;
    gap: 4px;
}

.skill-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gris-medio);
    transition: all var(--transition-normal);
}

.skill-dot.active {
    background: var(--dorado-clasico);
    box-shadow: 0 0 10px var(--dorado-clasico);
}

/* ============================================
   GALERÍA INTERACTIVA
============================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 3/4;
    max-height: 400px;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-hard);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
    transform: translateY(100%);
    transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-title {
    font-size: 1rem;
    color: var(--blanco-hueso);
    margin-bottom: 5px;
}

.gallery-caption {
    font-size: 0.8rem;
    color: #999;
}

/* ============================================
   LIGHTBOX
============================================ */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.lightbox.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
}

.lightbox-img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 10px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    color: white;
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background: var(--dorado-clasico);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    color: white;
    transition: all var(--transition-fast);
}

.lightbox-nav:hover {
    background: var(--dorado-clasico);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ============================================
   CARDS GLASSMORPHISM (SESIONES)
============================================ */
.sessions-timeline {
    position: relative;
    padding: 40px 0;
}

.session-card {
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 25px;
    padding: 40px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(50px);
}

.session-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.session-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--dorado-clasico), transparent, var(--dorado-clasico));
    border-radius: 25px;
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.session-card:hover::before {
    opacity: 0.3;
}

.session-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hard);
}

.session-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.session-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--dorado-oscuro), var(--dorado-clasico));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--negro-profundo);
    box-shadow: var(--shadow-medium);
}

.session-info {
    flex: 1;
    min-width: 200px;
}

.session-title {
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--dorado-clasico);
    margin-bottom: 8px;
}

.session-date {
    font-size: 0.9rem;
    color: #999;
    letter-spacing: 1px;
}

.session-rating {
    display: flex;
    gap: 8px;
}

.star {
    font-size: 1.5rem;
    color: #333;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.star.active {
    color: var(--dorado-clasico);
    filter: drop-shadow(0 0 5px var(--dorado-clasico));
}

.session-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.session-image {
    aspect-ratio: 3/4;
    max-height: 300px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
}

.session-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-normal);
}

.session-image:hover img {
    transform: scale(1.05);
}

.session-image-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(212, 175, 55, 0.9);
    color: var(--negro-profundo);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.session-analysis {
    margin-top: 30px;
}

.analysis-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    cursor: pointer;
    user-select: none;
}

.analysis-header h3 {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--dorado-clasico);
    letter-spacing: 1px;
}

.analysis-toggle {
    color: var(--dorado-clasico);
    transition: transform var(--transition-fast);
}

.analysis-toggle.open {
    transform: rotate(180deg);
}

.analysis-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.analysis-content.open {
    max-height: 2000px;
}

.analysis-grid {
    display: grid;
    gap: 20px;
}

.analysis-item {
    padding: 20px;
    background: rgba(0,0,0,0.3);
    border-left: 3px solid var(--verde-exito);
    border-radius: 8px;
}

.analysis-item.warning {
    border-left-color: var(--naranja-atencion);
}

.analysis-item.critical {
    border-left-color: var(--rojo-critico);
}

.analysis-item h4 {
    font-size: 1rem;
    color: var(--blanco-hueso);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.analysis-icon {
    font-size: 1.2rem;
}

.analysis-item p {
    color: #bbb;
    line-height: 1.7;
    font-size: 0.95rem;
}

.analysis-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.tag {
    padding: 5px 12px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 15px;
    font-size: 0.75rem;
    color: var(--dorado-clasico);
    letter-spacing: 0.5px;
}

/* ============================================
   COMPARADOR ANTES/DESPUÉS
============================================ */
.comparator {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    aspect-ratio: 3/4;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hard);
}

.comparator-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.comparator-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.comparator-before {
    z-index: 2;
    clip-path: inset(0 50% 0 0);
}

.comparator-slider {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: var(--dorado-clasico);
    z-index: 3;
    cursor: ew-resize;
}

.comparator-slider::before {
    content: '◄►';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: var(--dorado-clasico);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--negro-profundo);
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: var(--shadow-medium);
}

.comparator-label {
    position: absolute;
    bottom: 20px;
    padding: 10px 20px;
    background: rgba(0,0,0,0.8);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    z-index: 4;
}

.comparator-label.before {
    left: 20px;
    color: var(--dorado-clasico);
}

.comparator-label.after {
    right: 20px;
    color: var(--verde-exito);
}

/* ============================================
   PRÓXIMA SESIÓN
============================================ */
.next-session {
    background: linear-gradient(135deg, var(--gris-carbon), var(--gris-antracita));
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 25px;
    padding: 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.next-session::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,175,55,0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.next-session-content {
    position: relative;
    z-index: 2;
}

.next-session h2 {
    font-size: 2rem;
    font-weight: 300;
    color: var(--dorado-clasico);
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.countdown {
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 40px;
}

.checklist {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(0,0,0,0.3);
    border-radius: 10px;
    margin-bottom: 12px;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.checklist-item:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateX(5px);
}

.checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--dorado-clasico);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checklist-item.checked .checkbox {
    background: var(--dorado-clasico);
}

.checkbox::after {
    content: '✓';
    color: var(--negro-profundo);
    font-weight: 700;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.checklist-item.checked .checkbox::after {
    opacity: 1;
}

.checklist-text {
    flex: 1;
    color: #ccc;
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.checklist-item.checked .checklist-text {
    color: #666;
    text-decoration: line-through;
}

/* ============================================
   FOOTER
============================================ */
footer {
    background: var(--negro-profundo);
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    padding: 60px 20px 30px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-quote {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--dorado-clasico);
    margin-bottom: 20px;
    font-weight: 300;
}

.footer-author {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 40px;
}

.footer-bottom {
    font-size: 0.8rem;
    color: #555;
    letter-spacing: 1px;
}

/* ============================================
   SCROLL ANIMATIONS
============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 768px) {
    .hero {
        height: 100svh;
    }

    .hero-stats {
        gap: 25px;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

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

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .session-card {
        padding: 25px;
    }

    .session-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .session-images {
        grid-template-columns: 1fr;
    }

    .comparator {
        aspect-ratio: 2/3;
    }

    .next-session {
        padding: 35px 25px;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.65rem;
        padding: 6px 15px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .session-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .session-title {
        font-size: 1.4rem;
    }

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

    .comparator-label {
        font-size: 0.7rem;
        padding: 8px 15px;
    }
}

/* ============================================
   UTILITIES
============================================ */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}

.mt-40 {
    margin-top: 40px;
}

/* ============================================
   TOP NAVIGATION
============================================ */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 15px 0;
}

.top-nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.top-nav a {
    color: var(--blanco-hueso);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.top-nav a:hover {
    color: var(--dorado-clasico);
}

.top-nav a.active {
    color: var(--dorado-clasico);
    font-weight: 600;
}

.top-nav .divider {
    color: var(--gris-medio);
    user-select: none;
}

/* ============================================
   REFLEXIONES PERSONALES
============================================ */
.personal-reflection {
    margin-top: 30px;
    background: var(--gris-claro);
    border-left: 4px solid var(--dorado-clasico);
    border-radius: 12px;
    overflow: hidden;
}

.reflection-header {
    padding: 20px;
    background: rgba(212, 175, 55, 0.1);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all var(--transition-normal);
    user-select: none;
}

.reflection-header:hover {
    background: rgba(212, 175, 55, 0.15);
}

.reflection-icon {
    font-size: 1.5rem;
}

.reflection-header h3 {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dorado-clasico);
}

.reflection-toggle {
    font-size: 1.2rem;
    transition: transform var(--transition-normal);
    color: var(--dorado-clasico);
}

.reflection-toggle.open {
    transform: rotate(180deg);
}

.reflection-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.reflection-content.open {
    max-height: 2000px;
}

.reflection-sections {
    padding: 30px;
}

.reflection-section {
    margin-bottom: 25px;
}

.reflection-section:last-child {
    margin-bottom: 0;
}

.reflection-section h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dorado-clasico);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.reflection-section.feeling h4 {
    color: #f4d03f;
}

.reflection-section p {
    color: #ccc;
    line-height: 1.8;
    font-size: 0.95rem;
}

.reflection-section ul {
    list-style: none;
    padding: 0;
}

.reflection-section ul li {
    padding: 8px 0 8px 20px;
    color: #ccc;
    line-height: 1.6;
    position: relative;
    font-size: 0.95rem;
}

.reflection-section ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--dorado-clasico);
}

.reflection-section ul li strong {
    color: var(--blanco-hueso);
    font-weight: 600;
}

.reflection-section ul li em {
    display: block;
    margin-top: 5px;
    color: #999;
    font-style: italic;
    font-size: 0.9rem;
}

.reflection-emphasis {
    display: block;
    margin-top: 15px;
    padding: 15px;
    background: rgba(212, 175, 55, 0.1);
    border-left: 3px solid var(--dorado-clasico);
    border-radius: 6px;
    font-weight: 600;
    color: #f4d03f;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.reflection-warning {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 16px;
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid var(--rojo-critico);
    border-radius: 20px;
    color: var(--rojo-critico);
    font-weight: 500;
    font-size: 0.9rem;
}

/* ============================================
   SECCIÓN OBRAS/PROYECTOS (index.html)
============================================ */
.obras-section {
    padding: 80px 0;
    background: var(--negro-profundo);
}

.obras-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.obra-card {
    background: linear-gradient(135deg, var(--gris-carbon) 0%, var(--gris-antracita) 100%);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.obra-card.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.obra-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hard);
    border-color: var(--dorado-clasico);
}

.obra-thumbnail {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
}

.obra-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-slow);
}

.obra-card:hover .obra-thumbnail img {
    transform: scale(1.1);
}

.obra-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    backdrop-filter: blur(10px);
    z-index: 10;
}

.obra-badge.completado {
    background: rgba(46, 204, 113, 0.9);
    color: var(--negro-profundo);
}

.obra-badge.en-progreso {
    background: rgba(230, 126, 34, 0.9);
    color: var(--negro-profundo);
}

.obra-info {
    padding: 30px;
}

.obra-titulo {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--dorado-clasico);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.obra-fecha {
    font-size: 0.9rem;
    color: #999;
    margin-bottom: 20px;
}

.obra-btn {
    display: inline-block;
    padding: 12px 30px;
    background: transparent;
    border: 2px solid var(--dorado-clasico);
    color: var(--dorado-clasico);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all var(--transition-normal);
    font-size: 0.9rem;
}

.obra-btn:hover {
    background: var(--dorado-clasico);
    color: var(--negro-profundo);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

/* ============================================
   GRÁFICOS CIRCULARES SVG
============================================ */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.circular-progress {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circular-progress svg {
    transform: rotate(-90deg);
}

.circular-progress-bg {
    fill: none;
    stroke: var(--gris-medio);
    stroke-width: 8;
}

.circular-progress-fill {
    fill: none;
    stroke: var(--dorado-clasico);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 440;
    stroke-dashoffset: 440;
    transition: stroke-dashoffset 2s ease-out;
}

.circular-progress-text {
    position: absolute;
    text-align: center;
}

.circular-progress-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dorado-clasico);
}

.circular-progress-label {
    display: block;
    font-size: 0.85rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* ============================================
   GRÁFICO CHART.JS (EVOLUCIÓN TEMPORAL)
============================================ */
.evolution-chart-container {
    margin: 60px 0;
    padding: 40px;
    background: var(--gris-antracita);
    border-radius: 20px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.chart-wrapper {
    position: relative;
    height: 400px;
    max-width: 100%;
}

@media (max-width: 768px) {
    .chart-wrapper {
        height: 300px;
    }

    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* ============================================
   TIMELINE HORIZONTAL (SESIONES)
============================================ */
.timeline-horizontal {
    margin: 40px 0;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--dorado-clasico) var(--gris-medio);
}

.timeline-horizontal::-webkit-scrollbar {
    height: 8px;
}

.timeline-horizontal::-webkit-scrollbar-track {
    background: var(--gris-medio);
    border-radius: 10px;
}

.timeline-horizontal::-webkit-scrollbar-thumb {
    background: var(--dorado-clasico);
    border-radius: 10px;
}

.timeline-track {
    display: flex;
    gap: 30px;
    padding: 20px 0;
    min-width: min-content;
}

.timeline-card {
    min-width: 320px;
    max-width: 320px;
    background: linear-gradient(135deg, var(--gris-carbon), var(--gris-antracita));
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 25px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.timeline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--dorado-oscuro), var(--dorado-clasico));
}

.timeline-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hard);
    border-color: var(--dorado-clasico);
}

.timeline-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.timeline-card-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--dorado-oscuro), var(--dorado-clasico));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--negro-profundo);
    flex-shrink: 0;
}

.timeline-card-title h4 {
    font-size: 1.2rem;
    color: var(--dorado-clasico);
    font-weight: 400;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.timeline-card-title span {
    font-size: 0.85rem;
    color: #999;
}

.timeline-card-image {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
}

.timeline-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.timeline-card:hover .timeline-card-image img {
    transform: scale(1.05);
}

.timeline-card-rating {
    display: flex;
    gap: 5px;
    margin-bottom: 15px;
}

.timeline-card-summary {
    font-size: 0.9rem;
    color: #bbb;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .timeline-card {
        min-width: 280px;
        max-width: 280px;
    }
}

/* ============================================
   COMPARATIVA LADO A LADO
============================================ */
.side-by-side {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-item {
    position: relative;
    aspect-ratio: 3/4;
    max-height: 500px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
}

.comparison-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hard);
}

.comparison-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comparison-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 10px 20px;
    background: rgba(212, 175, 55, 0.95);
    color: var(--negro-profundo);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

@media (max-width: 768px) {
    .side-by-side {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .comparison-item {
        max-height: 400px;
    }
}