/* ==========================================================================
   BIBLIOTECA PASTORAL — ESTILOS LANDING PAGE (MATERIAL 3 / TEOLOGÍA OSCURA)
   Desarrollado por: Angel Castillo (Tech Service) © 2026
   ========================================================================== */

:root {
    --bg-dark: #070c1a;
    --bg-surface: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent-gold: #d4af37;
    --accent-gold-hover: #b89628;
    --android-green: #10b981;
    --android-green-hover: #059669;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: rgba(255, 255, 255, 0.1);
    --border-gold: rgba(212, 175, 55, 0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    --shadow-glow: 0 0 25px rgba(59, 130, 246, 0.2);
    --shadow-gold: 0 0 25px rgba(212, 175, 55, 0.25);
    --navbar-bg: rgba(7, 12, 26, 0.85);
}

[data-theme="light"] {
    --bg-dark: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #f1f5f9;
    --bg-card-hover: #e2e8f0;
    
    --primary: #1d4ed8;
    --primary-hover: #1e40af;
    --accent-gold: #b8860b;
    --accent-gold-hover: #966c04;

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --border-color: #cbd5e1;
    --border-gold: rgba(184, 134, 11, 0.4);

    --shadow-glow: 0 10px 25px rgba(29, 78, 216, 0.1);
    --shadow-gold: 0 10px 25px rgba(184, 134, 11, 0.15);
    --navbar-bg: rgba(255, 255, 255, 0.9);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.section-padding {
    padding: 80px 0;
}

/* NAVBAR */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--navbar-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 3px;
    cursor: pointer;
    transition: all 0.25s ease;
    outline: none;
}

.theme-toggle-btn:hover {
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-gold);
}

.theme-toggle-track {
    display: flex;
    align-items: center;
    gap: 2px;
}

.theme-option {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-option svg {
    display: inline-block;
    vertical-align: middle;
}

/* Estado Activo en Modo Noche */
[data-theme="dark"] .theme-option-dark {
    background: linear-gradient(135deg, var(--accent-gold), #b89628);
    color: #000;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.35);
}

/* Estado Activo en Modo Día */
[data-theme="light"] .theme-option-light {
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(29, 78, 216, 0.35);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    font-size: 28px;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.brand-version {
    font-size: 11px;
    color: var(--accent-gold);
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--accent-gold);
}

/* HERO SECTION */
.hero {
    padding: 100px 0 80px;
    background: radial-gradient(circle at 50% 20%, rgba(59, 130, 246, 0.15), transparent 70%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 175, 55, 0.12);
    border: 1px solid var(--border-gold);
    color: var(--accent-gold);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-gold);
}

.hero-title {
    font-family: var(--font-heading);
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-title-brand {
    font-size: 54px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    letter-spacing: -1.5px;
    display: block;
}

.hero-title-sub {
    font-size: 28px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-secondary);
    display: block;
}

.hero-title .highlight {
    font-size: 1.22em;
    font-weight: 800;
    color: var(--accent-gold);
    background: linear-gradient(135deg, #fff3a0, #d4af37);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding: 0 2px;
}

[data-theme="light"] .hero-title .highlight {
    background: linear-gradient(135deg, #b8860b, #d4af37);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.hero-footer-notes {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-muted);
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold), #b89628);
    color: #000;
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #fef08a, var(--accent-gold));
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--android-green), var(--android-green-hover));
    color: #fff;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.btn-secondary-sm {
    padding: 8px 18px;
    font-size: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.btn-secondary-sm:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.btn-icon {
    font-size: 22px;
}

.btn-text-group {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-subtext {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.btn-maintext {
    font-size: 14px;
    font-weight: 700;
}

.full-width {
    width: 100%;
}

/* HERO PREVIEW CARD */
.preview-card-frame {
    background: var(--bg-surface);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), var(--shadow-gold);
}

.window-header {
    background: var(--bg-card);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.window-title {
    font-size: 12px;
    color: var(--text-muted);
    margin-left: auto;
    margin-right: auto;
}

.preview-body {
    padding: 28px;
}

.mock-tag {
    display: inline-block;
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.preview-body h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    margin-bottom: 8px;
}

.mock-cita {
    color: var(--accent-gold);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.mock-content {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* FEATURES GRID */
.section-header.center {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* DOWNLOADS SECTION */
.downloads {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.download-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.download-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.highlight-card {
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-gold);
}

.highlight-card-android {
    border-color: var(--android-green);
}

.dl-badge {
    position: absolute;
    top: -12px;
    background: var(--accent-gold);
    color: #000;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 20px;
}

.android-badge {
    background: var(--android-green);
    color: #fff;
}

.dl-icon {
    font-size: 44px;
    margin-bottom: 16px;
}

.download-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    margin-bottom: 10px;
}

.dl-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    flex-grow: 1;
}

.dl-meta {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 14px;
}

/* PURPOSE SECTION */
.purpose-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.purpose-quote {
    background: rgba(212, 175, 55, 0.05);
    border-left: 4px solid var(--accent-gold);
    padding: 32px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.purpose-quote blockquote {
    font-family: var(--font-heading);
    font-size: 18px;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.purpose-quote cite {
    font-size: 14px;
    color: var(--accent-gold);
    font-weight: 600;
}

.purpose-info h3 {
    font-family: var(--font-heading);
    font-size: 28px;
    margin-bottom: 16px;
}

.purpose-info p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 15px;
}

.purpose-footer {
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

/* CONTACT SECTION */
.contact {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
    align-items: start;
}

.contact-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    position: relative;
}

.developer-card {
    border-color: var(--border-gold);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-gold);
}

.dev-badge {
    position: absolute;
    top: -12px;
    background: var(--accent-gold);
    color: #000;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 14px;
    border-radius: 20px;
}

.dev-avatar {
    font-size: 48px;
    margin-bottom: 12px;
}

.dev-avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-gold);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
    margin: 12px auto 16px auto;
    display: block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dev-avatar-img:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
}

.developer-card h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    margin-bottom: 4px;
}

.dev-role {
    font-size: 13px;
    color: var(--accent-gold);
    margin-bottom: 24px;
    font-weight: 500;
}

.contact-email-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    width: 100%;
    margin-bottom: 24px;
    text-align: center;
}

.email-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.email-address {
    color: var(--accent-gold);
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    word-break: break-all;
    transition: color 0.2s ease;
}

.email-address:hover {
    color: var(--text-primary);
}

.contact-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

/* FORM CARD */
.form-card h3 {
    font-family: var(--font-heading);
    font-size: 22px;
    margin-bottom: 6px;
}

.form-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    outline: none;
    transition: all 0.2s ease;
}

.form-input:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}

.form-input.textarea {
    resize: vertical;
    min-height: 100px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-grid, .purpose-container, .contact-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 36px;
    }
    .nav-links {
        display: none;
    }
}