/* =========================================
   ESPACIO QUIRÚRGICO - Design System
   Dr. Joel Taveras Castillo
   "Aura Surgical" Theme: Navy + Teal
   ========================================= */

/* === CSS Custom Properties === */
:root {
    --navy: #0A1628;
    --navy-deep: #101c2e;
    --teal: #0D7377;
    --teal-dark: #00696d;
    --teal-light: #9df0f4;
    --teal-glow: rgba(13, 115, 119, 0.15);
    --surface: #f8f9fa;
    --surface-low: #f3f4f5;
    --surface-white: #ffffff;
    --surface-high: #e7e8e9;
    --on-surface: #191c1d;
    --on-surface-muted: #45474c;
    --outline: #75777d;
    --outline-light: #c5c6cd;
    --error: #ba1a1a;
    --error-bg: #ffdad6;
    --warn-bg: #fff3cd;
    --success-bg: #d4edda;
    --font-display: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-ambient: 0 20px 40px rgba(16, 28, 46, 0.06);
    --shadow-card: 0 4px 20px rgba(16, 28, 46, 0.08);
    --shadow-elevated: 0 8px 30px rgba(16, 28, 46, 0.12);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    color: var(--on-surface);
    background: var(--surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { border: none; cursor: pointer; font-family: var(--font-body); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Typography === */
.section-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--teal-dark);
    display: inline-block;
    margin-bottom: 12px;
}
.section-label-light { color: var(--teal-light); }
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--navy-deep);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 16px;
}
.section-title-light { color: #fff; }
.section-desc {
    font-size: 1.05rem;
    color: var(--on-surface-muted);
    max-width: 600px;
    line-height: 1.7;
}
.section-header {
    text-align: center;
    margin-bottom: 64px;
}
.section-header .section-desc { margin: 0 auto; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--teal-dark);
    color: #fff;
}
.btn-primary:hover {
    background: var(--teal);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(13, 115, 119, 0.3);
}
.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--teal-dark);
    border: 2px solid var(--teal-dark);
}
.btn-outline:hover {
    background: var(--teal-dark);
    color: #fff;
    transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }
.btn-lg { padding: 18px 36px; font-size: 1.05rem; }

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding: 10px 0;
    box-shadow: var(--shadow-ambient);
}
.navbar.scrolled .nav-logo .logo-text,
.navbar.scrolled .nav-menu a { color: var(--navy-deep); }
.navbar.scrolled .nav-cta { 
    background: var(--teal-dark) !important;
    color: #fff !important;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}
.nav-logo img {
    -webkit-mask-image: radial-gradient(circle, black 65%, transparent 100%);
    mask-image: radial-gradient(circle, black 65%, transparent 100%);
    animation: floatingLogo 4s ease-in-out infinite;
    transition: var(--transition);
}
@keyframes floatingLogo {
    0%, 100% {
        transform: translateY(0) scale(1);
        filter: drop-shadow(0 0 8px rgba(13, 115, 119, 0.2));
    }
    50% {
        transform: translateY(-4px) scale(1.03);
        filter: drop-shadow(0 6px 16px rgba(13, 115, 119, 0.5));
    }
}
.logo-icon {
    font-size: 1.4rem;
    color: var(--teal-light);
}
.logo-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.02em;
    transition: var(--transition);
}
.logo-accent { color: var(--teal-light); }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-menu a {
    color: rgba(255,255,255,0.85);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav-cta {
    background: var(--teal-dark) !important;
    color: #fff !important;
    padding: 10px 20px !important;
    animation: pulseButton 2s infinite;
}

@keyframes pulseButton {
    0% { box-shadow: 0 0 0 0 rgba(13, 115, 119, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(13, 115, 119, 0); }
    100% { box-shadow: 0 0 0 0 rgba(13, 115, 119, 0); }
}
.nav-cta:hover {
    background: var(--teal) !important;
    transform: translateY(-1px);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    z-index: 1001;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: #fff;
    transition: var(--transition);
}
.navbar.scrolled .nav-toggle span { background: var(--navy-deep); }

/* === HERO === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 25%;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(13,115,119,0.78) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    width: 100%;
}
.hero-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--teal-light);
    background: rgba(157, 240, 244, 0.1);
    border: 1px solid rgba(157, 240, 244, 0.2);
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 24px;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 24px;
}
.hero-doctor {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
}
.hero-doctor-info { display: flex; flex-direction: column; gap: 4px; }
.hero-doctor-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}
.hero-doctor-title {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat { text-align: left; }
.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--teal-light);
    letter-spacing: -0.02em;
}
.stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.4);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid rgba(255,255,255,0.3);
    border-bottom: 2px solid rgba(255,255,255,0.3);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(8px); }
}

/* === ABOUT === */
.about {
    padding: 120px 0;
    background: var(--surface-white);
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}
.about-image-wrapper { position: relative; }
.about-image-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-elevated);
}
.about-image-frame::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10,22,40,0.2));
}
.about-image {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}
.delete-article-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.95);
    color: #ef4444; /* Un rojo más moderno */
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.85; /* Visible por defecto */
}

.delete-article-btn:hover {
    background: #ef4444;
    color: white;
    transform: scale(1.1);
    opacity: 1;
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.3);
}

/* =========================================================================
   Rich Text Editor (RTE) for Article Creation
========================================================================= */
.rte-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 10px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-bottom: none;
    border-radius: 12px 12px 0 0;
    align-items: center;
}

.rte-toolbar button {
    background: #252525;
    color: #ccc;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    width: 34px;
    height: 34px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.rte-toolbar button:hover {
    background: var(--teal-dark);
    color: white;
    border-color: var(--teal);
}

.rte-toolbar select {
    background: #252525;
    color: #ccc;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    padding: 6px 8px;
    font-size: 0.8rem;
    cursor: pointer;
    height: 34px;
    outline: none;
    transition: all 0.2s ease;
}

.rte-toolbar select:hover {
    border-color: var(--teal);
}

.rte-separator {
    width: 1px;
    height: 24px;
    background: #3a3a3a;
    margin: 0 4px;
}

.rte-editor {
    width: 100%;
    min-height: 180px;
    max-height: 400px;
    overflow-y: auto;
    padding: 16px;
    border-radius: 0 0 12px 12px;
    border: 1px solid #333;
    background: #161616;
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.7;
    outline: none;
}

.rte-editor:focus {
    border-color: var(--teal-dark);
    box-shadow: 0 0 0 2px rgba(0, 150, 136, 0.2);
}

.rte-editor:empty::before {
    content: attr(data-placeholder);
    color: #555;
    pointer-events: none;
}

/* Make lists visible inside the editor and article content */
.rte-editor ul,
.article-modal-text ul,
.article-preview ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 12px;
}

.rte-editor ol,
.article-modal-text ol,
.article-preview ol {
    list-style: decimal;
    padding-left: 24px;
    margin-bottom: 12px;
}

.rte-editor li,
.article-modal-text li,
.article-preview li {
    margin-bottom: 6px;
}

@media (max-width: 480px) {
    .rte-toolbar {
        gap: 3px;
        padding: 6px;
    }
    .rte-toolbar button {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }
    .rte-toolbar select {
        font-size: 0.7rem;
        padding: 4px 6px;
        height: 30px;
    }
}

.about-credentials {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: var(--shadow-card);
}
.credential-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--navy-deep);
}
.credential-item svg { color: var(--teal-dark); flex-shrink: 0; }
.about-content { padding-right: 20px; }
.about-intro {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--teal-dark);
    margin-bottom: 24px;
}
.about-text {
    font-size: 1rem;
    color: var(--on-surface-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}
.about-contact { margin-top: 32px; }
.about-phone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--teal-dark);
    padding: 12px 24px;
    background: var(--teal-glow);
    border-radius: var(--radius-sm);
}
.about-phone:hover { background: rgba(13, 115, 119, 0.25); }

/* === WHY CHOOSE === */
.why-choose {
    padding: 120px 0;
    background: var(--surface-low);
    position: relative;
    overflow: hidden;
}
.why-choose::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--teal-glow) 0%, transparent 70%);
    pointer-events: none;
}
.why-reasons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 72px;
}
.why-reason-item {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-lg);
    background: var(--surface-white);
    transition: var(--transition);
}
.why-reason-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.why-reason-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--navy-deep), var(--teal-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.why-reason-icon svg { stroke: var(--teal-light); }
.why-reason-item h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-bottom: 10px;
}
.why-reason-item p {
    font-size: 0.85rem;
    color: var(--on-surface-muted);
    line-height: 1.6;
}
.why-videos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
}
.why-video-card {
    background: var(--surface-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-ambient);
    width: 100%;
    max-width: 360px;
}
.why-video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}
.why-video-wrapper {
    position: relative;
    width: 100%;
    background: var(--surface-white);
    padding: 24px 24px 0 24px;
}
.why-video-wrapper video {
    width: 100%;
    display: block;
    aspect-ratio: 9/16;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-ambient);
}
.why-video-info { padding: 28px 28px 32px; }
.why-video-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-bottom: 10px;
}
.why-video-desc {
    font-size: 0.9rem;
    color: var(--on-surface-muted);
    line-height: 1.7;
}

/* === SURGERIES === */
.surgeries {
    padding: 120px 0;
    background: var(--surface-low);
}
.surgery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.surgery-card {
    background: var(--surface-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.surgery-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--teal-dark), var(--teal-light));
    opacity: 0;
    transition: var(--transition);
}
.surgery-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-elevated);
}
.surgery-card:hover::before { opacity: 1; }
.surgery-card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--navy-deep), var(--teal-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.surgery-card-icon svg { stroke: var(--teal-light); }
.surgery-card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-bottom: 12px;
}
.surgery-card-desc {
    font-size: 0.9rem;
    color: var(--on-surface-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}
.surgery-card-btn {
    background: none;
    color: var(--teal-dark);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.surgery-card-btn:hover { color: var(--teal); gap: 10px; }

/* === CALCULATOR === */
.calculator-section {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
}
.calculator-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.calculator-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.calculator-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,22,40,0.94) 0%, rgba(16,28,46,0.88) 100%);
}
.calculator-wrapper {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: center;
}
.calculator-desc {
    color: rgba(255,255,255,0.7);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 32px;
}
.calculator-alert {
    display: flex;
    gap: 16px;
    background: rgba(186, 26, 26, 0.15);
    border: 1px solid rgba(186, 26, 26, 0.3);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-top: 24px;
}
.alert-icon { font-size: 1.5rem; }
.alert-content h4 {
    color: #ffdad6;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.alert-content p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    line-height: 1.6;
}
.calculator-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-elevated);
}
.calculator-card-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-bottom: 28px;
}
.calc-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--surface-low);
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid var(--outline-light);
}
.calc-tab {
    flex: 1;
    background: transparent;
    border: none;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--on-surface-muted);
    transition: var(--transition);
}
.calc-tab:hover {
    color: var(--navy-deep);
    background: rgba(255,255,255,0.5);
}
.calc-tab.active {
    background: var(--surface-white);
    color: var(--teal-dark);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.calc-content {
    display: none;
    animation: fadeIn 0.4s ease;
}
.calc-content.active {
    display: block;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--on-surface-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: none;
    background: var(--surface-high);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--on-surface);
    transition: var(--transition);
    border-left: 3px solid transparent;
}
.form-group input:focus {
    outline: none;
    border-left-color: var(--teal-dark);
    background: var(--surface-low);
    box-shadow: 0 0 0 3px var(--teal-glow);
}
.calculator-result {
    margin-top: 28px;
    text-align: center;
}
.result-imc {
    padding: 24px;
    background: linear-gradient(135deg, var(--navy-deep), var(--teal-dark));
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}
.result-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
}
.result-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--teal-light);
}
.result-category {
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 16px;
}
.result-ideal {
    padding: 16px;
    background: var(--surface-low);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}
.result-ideal-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-top: 4px;
}

/* === ARTICLES === */
.articles {
    padding: 120px 0;
    background: var(--surface-white);
}
.articles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.article-card {
    background: var(--surface-low);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.article-featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}
.article-card-image {
    position: relative;
    overflow: hidden;
}
.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 300px;
    transition: var(--transition);
}
.article-card:hover .article-card-image img { transform: scale(1.05); }
.article-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--teal-dark);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 100px;
}
.article-card-content { padding: 32px; }
.article-date {
    font-size: 0.75rem;
    color: var(--outline);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
    display: block;
}
.article-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-bottom: 12px;
    line-height: 1.3;
}
.article-excerpt {
    font-size: 0.9rem;
    color: var(--on-surface-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}
.article-read {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--teal-dark);
    transition: var(--transition);
}
.article-card:hover .article-read { color: var(--teal); }

/* === FAQ === */
.faq {
    padding: 100px 0;
    background: var(--surface-low);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--surface-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-ambient); }
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
}
.faq-question h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--navy-deep);
    flex: 1;
}
.faq-icon {
    font-size: 1.5rem;
    color: var(--teal-dark);
    font-weight: 300;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-answer p {
    padding: 0 28px 24px;
    font-size: 0.95rem;
    color: var(--on-surface-muted);
    line-height: 1.7;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-item.active .faq-answer { max-height: 400px; }
.faq-item.active { box-shadow: var(--shadow-card); }

/* === CTA Section === */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--teal-dark) 100%);
    text-align: center;
}
.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.cta-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.7);
    max-width: 550px;
    margin: 0 auto 40px;
    line-height: 1.7;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* === FOOTER === */
.footer {
    background: var(--navy);
    padding: 80px 0 0;
    color: rgba(255,255,255,0.7);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 60px;
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-tagline {
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}
.footer-links h4, .footer-contact h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
}
.footer-links a:hover { color: var(--teal-light); }
.footer-contact p {
    font-size: 0.9rem;
    margin-bottom: 4px;
}
.footer-phone, .footer-whatsapp {
    display: inline-block;
    font-weight: 600;
    color: var(--teal-light);
    margin-top: 8px;
}
.footer-phone:hover, .footer-whatsapp:hover { color: #fff; }
.footer-whatsapp { margin-left: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
}

/* === MODAL === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,22,40,0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
    background: var(--surface-white);
    border-radius: var(--radius-lg);
    max-width: 720px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 48px;
    position: relative;
    transform: scale(0.95) translateY(20px);
    transition: var(--transition);
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--surface-high);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--on-surface-muted);
    transition: var(--transition);
}
.modal-close:hover { background: var(--error-bg); color: var(--error); }
.modal-content h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--navy-deep);
    margin-bottom: 20px;
}
.modal-content h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin: 24px 0 12px;
}
.modal-content p {
    font-size: 0.95rem;
    color: var(--on-surface-muted);
    line-height: 1.8;
    margin-bottom: 12px;
}
.modal-content ul, .modal-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}
.modal-content li {
    list-style: disc;
    font-size: 0.95rem;
    color: var(--on-surface-muted);
    line-height: 1.7;
    margin-bottom: 6px;
}
.modal-content ol li { list-style: decimal; }
.modal-content .modal-doctor {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--outline-light);
    font-weight: 600;
    color: var(--navy-deep);
}
.modal-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.85rem;
}
.modal-content th {
    background: var(--navy-deep);
    color: #fff;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
}
.modal-content td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--outline-light);
    color: var(--on-surface-muted);
}
.modal-content tr:nth-child(even) td { background: var(--surface-low); }

/* === BOOKING MODAL (Multi-step Dark Premium UI) === */
.modal-booking {
    max-width: 600px;
    padding: 32px;
    background: #161616; /* Deep dark carbon */
    color: #fff;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.8);
    border-radius: 16px;
}
.modal-booking .modal-close {
    background: transparent;
    color: #ccc;
    font-size: 1.2rem;
}
.modal-booking .modal-close:hover { background: rgba(255,255,255,0.1); color: #fff; }
.booking-header {
    text-align: left;
    margin-bottom: 24px;
}
.booking-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--teal-light);
    margin-bottom: 6px;
}
.booking-header p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.4;
}

/* Step 1: Services */
.service-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.service-btn {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
}
.service-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--teal);
}
.service-name {
    font-weight: 600;
    font-size: 1rem;
}
.service-icon {
    font-family: monospace;
    font-size: 1.2rem;
    color: var(--teal);
}

/* Step 2 & 3: Info Cards */
.selected-service-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: #111111;
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 12px;
    margin-bottom: 32px;
    cursor: pointer;
    transition: var(--transition);
}
.selected-service-card:hover { background: #1a1a1a; }
.service-logo {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
    font-weight: 900;
    font-family: var(--font-display);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.selected-service-info {
    display: flex;
    flex-direction: column;
}
.service-label {
    font-size: 1.2rem;
    font-weight: 800;
    font-family: var(--font-display);
    color: #fff;
    margin-bottom: 4px;
    text-transform: none;
}
.service-value {
    font-size: 0.95rem;
    font-weight: 400;
    color: #a0a0a0;
}
.selected-datetime-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: #111;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    margin-bottom: 24px;
    cursor: pointer;
}
.selected-datetime-info {
    display: flex;
    flex-direction: column;
}
.datetime-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #a0a0a0;
    margin-bottom: 4px;
}
.datetime-value {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}
.service-edit {
    font-size: 0.85rem;
    color: var(--teal-light);
    font-weight: 500;
}

/* Dates */
.date-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
}
.date-arrow {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    opacity: 1;
}
.date-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    scroll-behavior: smooth;
}
.date-scroll::-webkit-scrollbar { display: none; }
.date-btn {
    flex: 0 0 auto;
    width: 64px;
    height: 72px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #1E1E1E;
    border: 1px solid #333;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
}
.date-btn:hover { background: #2a2a2a; }
.date-btn.active {
    background: var(--teal); /* using teal instead of pink to match brand */
    border-color: var(--teal);
    color: #111;
}
.date-btn.active span.day, .date-btn.active span.num { color: #111; }
.date-btn span.day { font-size: 0.75rem; font-weight: 600; margin-bottom: 4px; text-transform: uppercase; color: #a0a0a0; }
.date-btn span.num { font-size: 1.3rem; font-weight: 800; font-family: var(--font-display); }

/* Times */
.time-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 16px;
}
.display-full-date {
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    font-family: var(--font-display);
    margin-bottom: 6px;
}
.filter-pill {
    padding: 4px 16px;
    border-radius: 20px;
    border: 1px solid var(--teal);
    color: var(--teal);
    font-size: 0.85rem;
}
.time-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.time-btn {
    background: #1E1E1E;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 12px 0;
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-align: center;
}
.time-btn:hover { background: #2a2a2a; }
.time-btn.active {
    background: var(--teal);
    border-color: var(--teal);
    color: #fff;
}
.time-empty { font-size: 0.9rem; color: #a0a0a0; grid-column: 1/-1; }

/* Action Button Level 2 */
.btn-reservar {
    width: 100%;
    padding: 18px;
    background: #444; /* Disabled state */
    color: #eee;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    border-radius: 24px;
    cursor: not-allowed;
    transition: var(--transition);
}
.btn-reservar:not([disabled]) {
    background: var(--teal);
    color: #fff;
    cursor: pointer;
}
.btn-reservar:not([disabled]):hover { background: var(--teal-dark); }

/* Form Step 3 */
#bookingForm .form-group { margin-bottom: 16px; }
#bookingForm label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255,255,255,0.7);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
#bookingForm input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: #fff;
    transition: var(--transition);
}
#bookingForm input::placeholder { color: rgba(255,255,255,0.3); }
#bookingForm input:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(13,115,119,0.2);
    background: rgba(0,0,0,0.4);
}
#bookingForm .btn-primary { width: 100%; padding: 16px; font-size: 1.05rem; }

/* === WHATSAPP FLOAT === */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #25D366;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    animation: whatsappPulse 2s infinite;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}
@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

/* === Animations === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; gap: 60px; }
    .about-credentials { position: relative; bottom: 0; right: 0; margin-top: -40px; margin-left: 20px; margin-right: 20px; }
    .why-reasons { grid-template-columns: repeat(2, 1fr); }
    .why-videos { grid-template-columns: 1fr 1fr; gap: 24px; }
    .surgery-grid { grid-template-columns: repeat(2, 1fr); }
    .calculator-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--navy-deep);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 8px;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0,0,0,0.3);
    }
    .nav-menu.active { right: 0; }
    .nav-menu a {
        color: rgba(255,255,255,0.8);
        padding: 14px 16px;
        font-size: 1rem;
        display: block;
        border-radius: var(--radius-sm);
    }
    .nav-menu a:hover { background: rgba(255,255,255,0.1); }
    .hero-stats { flex-direction: column; gap: 20px; }
    .why-reasons { grid-template-columns: 1fr 1fr; }
    .why-videos { grid-template-columns: 1fr; }
    .surgery-grid { grid-template-columns: 1fr; }
    .articles-grid { grid-template-columns: 1fr; }
    .article-featured { grid-column: span 1; grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-actions { flex-direction: column; align-items: center; }
    .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
    .hero-content { padding: 100px 24px 60px; }
    .modal { padding: 32px 24px; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .about-credentials { flex-direction: column; }
    .why-reasons { grid-template-columns: 1fr; }
    .hero-stats { gap: 16px; }
    .calculator-card { padding: 28px 20px; }
}