/* ================================================
   CUSTOM PROPERTIES
   ================================================ */
:root {
    --c-primary: #38b6ff;
    --c-primary-dark: #1a9de0;
    --c-primary-soft: rgba(56, 182, 255, 0.08);
    --c-primary-medium: rgba(56, 182, 255, 0.18);
    --c-secondary: #ff66c4;
    --c-secondary-dark: #e050a8;
    --c-secondary-soft: rgba(255, 102, 196, 0.08);

    --c-dark: #111827;
    --c-dark-light: #1f2937;
    --c-text: #1e293b;
    --c-text-light: #475569;
    --c-text-muted: #94a3b8;

    --bg-body: #f1f5f9;
    --bg-surface: #ffffff;
    --bg-surface-alt: #f8fafc;
    --bg-header: rgba(255, 255, 255, 0.92);
    --bg-card: #ffffff;

    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    --mark-bg: rgba(56, 182, 255, 0.12);
    --mark-color: var(--c-text);

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.07);
    --shadow-lg: 0 8px 36px rgba(0,0,0,0.09);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.12);
    --shadow-primary: 0 4px 20px rgba(56, 182, 255, 0.3);
    --shadow-secondary: 0 4px 20px rgba(255, 102, 196, 0.25);

    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;

    --header-height: 64px;
    --content-max: 880px;
    --gap-section: 44px;
    --float-nav-width: 48px;

    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: 0.15s var(--ease-out);
    --transition-base: 0.3s var(--ease-out);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* ---- DARK MODE ---- */
[data-theme="dark"] {
    --c-dark: #040D63;
    --c-dark-light: #0a1580;
    --c-text: #e8ecf4;
    --c-text-light: #c1c9db;
    --c-text-muted: #8892aa;
    --bg-body: #030a3d;
    --bg-surface: #061058;
    --bg-surface-alt: #050e4e;
    --bg-header: rgba(4, 13, 99, 0.94);
    --bg-card: #061058;
    --border-color: #0e1a8a;
    --border-light: #0a1275;
    --mark-bg: rgba(56, 182, 255, 0.18);
    --mark-color: #cce8ff;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.35);
    --shadow-lg: 0 8px 36px rgba(0,0,0,0.4);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.5);
}

/* ================================================
   RESET
   ================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg-body);
    color: var(--c-text);
    line-height: 1.8;
    overflow-x: hidden;
}

a { color: var(--c-primary-dark); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--c-secondary); }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
img { max-width: 100%; display: block; }

mark, .highlight {
    background: var(--mark-bg);
    color: var(--mark-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

/* ================================================
   SKIP LINK (Accessibility + SEO)
   ================================================ */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--c-primary);
    color: #fff;
    padding: 10px 20px;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    z-index: 99999;
    transition: top 0.2s var(--ease-out);
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--c-secondary);
    outline-offset: 2px;
    color: #fff;
}

/* ================================================
   LOGO SYSTEM
   All logos use object-fit to maintain aspect ratio.
   Height controls size; width is auto.
   Fallbacks hidden by default, shown via JS on error.
   ================================================ */
.logo-img,
.modal-logo-img,
.hero-logo-img,
.sidebar-logo-img,
.footer-logo-img {
    display: block;
    object-fit: contain;
    width: auto;
}

.logo-fallback,
.modal-logo-fallback,
.hero-logo-fallback,
.sidebar-logo-fallback,
.footer-logo-fallback { display: none; }

.logo-img.hidden,
.modal-logo-img.hidden,
.hero-logo-img.hidden,
.sidebar-logo-img.hidden,
.footer-logo-img.hidden { display: none; }

.logo-fallback.shown,
.modal-logo-fallback.shown,
.hero-logo-fallback.shown,
.sidebar-logo-fallback.shown,
.footer-logo-fallback.shown { display: flex; }

/* ================================================
   MODAL
   ================================================ */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(3, 10, 61, 0.8);
    display: flex; align-items: center; justify-content: center;
    z-index: 10000;
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    backdrop-filter: blur(16px);
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal-card {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 92%; max-width: 480px;
    overflow: hidden;
    transform: translateY(30px) scale(0.95);
    transition: transform 0.5s var(--ease-spring);
}

.modal-overlay.active .modal-card { transform: translateY(0) scale(1); }

.modal-accent-bar { height: 5px; background: var(--c-primary); position: relative; }
.modal-accent-bar::after {
    content: ''; position: absolute; right: 0; top: 0;
    width: 38%; height: 100%; background: var(--c-secondary);
}

.modal-body { padding: 44px 40px 40px; text-align: center; }

.modal-logo-area {
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-logo-img {
    height: 56px;
    max-width: 200px;
}

.modal-logo-fallback {
    align-items: center; justify-content: center; gap: 10px;
    font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800;
    color: var(--c-primary); text-transform: uppercase; letter-spacing: 1px;
}
.modal-logo-fallback i { color: var(--c-secondary); }

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.6rem; font-weight: 800;
    color: var(--c-text); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: 1px;
}

.modal-subtitle { color: var(--c-text-muted); font-size: 0.95rem; margin-bottom: 30px; }

.modal-buttons { display: flex; gap: 14px; }

.lang-btn {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 24px 16px;
    background: var(--bg-surface-alt);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.lang-btn:hover {
    border-color: var(--c-primary);
    box-shadow: var(--shadow-primary);
    transform: translateY(-3px);
}

.lang-btn-icon { font-size: 1.6rem; color: var(--c-primary); }
.lang-btn-name { font-size: 1.05rem; font-weight: 700; color: var(--c-text); }
.lang-btn-desc { font-size: 0.78rem; color: var(--c-text-muted); }

/* ================================================
   PROGRESS BAR
   ================================================ */
.progress-bar { position: fixed; top: 0; left: 0; width: 100%; height: 3px; z-index: 9999; }
.progress-fill {
    height: 100%; width: 0%;
    background: var(--c-primary);
    transition: width 0.08s linear;
    box-shadow: 0 0 12px rgba(56, 182, 255, 0.5);
}

/* ================================================
   HEADER
   ================================================ */
.header {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--header-height);
    background: var(--bg-header);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--transition-base), background var(--transition-base);
}

.header.scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 100%; padding: 0 24px;
    max-width: 1400px; margin: 0 auto;
}

.header-left { display: flex; align-items: center; gap: 14px; }
.header-right { display: flex; align-items: center; gap: 6px; }

.sidebar-toggle {
    display: none;
    width: 40px; height: 40px;
    align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--c-text); font-size: 1.15rem;
    transition: background var(--transition-fast);
}
.sidebar-toggle:hover { background: var(--c-primary-soft); }

/* ---- Header Logo ---- */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 100%;
}

.logo-img {
    height: 36px;
    max-width: 140px;
}

.logo-fallback {
    align-items: center; gap: 8px;
    font-family: var(--font-heading); font-weight: 800; font-size: 1.1rem;
    color: var(--c-text); text-transform: uppercase; letter-spacing: 0.5px;
}
.logo-fallback i { color: var(--c-secondary); font-size: 0.95rem; }

/* HEADER NAV (Desktop section navigation) */
.header-nav {
    display: flex; align-items: center; gap: 2px;
    position: relative;
}

.header-nav-dot {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading);
    font-size: 0.72rem; font-weight: 700;
    color: var(--c-text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
}

.header-nav-dot::before {
    content: '';
    position: absolute; inset: 8px;
    background: var(--c-text-muted);
    border-radius: 50%;
    opacity: 0.3;
    transition: all var(--transition-fast);
}

.header-nav-dot:hover::before {
    inset: 0;
    background: var(--c-primary);
    opacity: 0.12;
}

.header-nav-dot:hover { color: var(--c-primary); }

.header-nav-dot.active::before {
    inset: 0;
    background: var(--c-primary);
    opacity: 0.15;
}

.header-nav-dot.active { color: var(--c-primary); font-weight: 800; }

.header-nav-dot .nav-tooltip {
    position: absolute;
    top: calc(100% + 8px); left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: var(--c-dark);
    color: #fff;
    font-size: 0.7rem; font-weight: 600;
    padding: 5px 10px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0; visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: 100;
}

.header-nav-dot .nav-tooltip::before {
    content: '';
    position: absolute; bottom: 100%; left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-bottom-color: var(--c-dark);
}

.header-nav-dot:hover .nav-tooltip {
    opacity: 1; visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Header buttons */
.header-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem; font-weight: 600;
    color: var(--c-text-light);
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}
.header-btn:hover {
    color: var(--c-primary); background: var(--c-primary-soft);
    border-color: var(--c-primary);
}
.header-btn i { font-size: 0.9rem; }

/* ================================================
   SIDEBAR (MOBILE + TABLET)
   ================================================ */
.sidebar {
    position: fixed; top: 0; left: 0;
    width: 290px; height: 100vh;
    background: var(--c-dark);
    overflow-y: auto; z-index: 2000;
    display: flex; flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
}

.sidebar.open { transform: translateX(0); }

.sidebar::-webkit-scrollbar { width: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.sidebar-header {
    padding: 24px 22px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-logo-img {
    height: 32px;
    max-width: 130px;
    margin-bottom: 14px;
}

/* Dark mode: brighten the logo in sidebar */
[data-theme="dark"] .sidebar-logo-img,
.sidebar-logo-img {
    filter: brightness(0) invert(1);
}

.sidebar-logo-fallback {
    align-items: center; gap: 6px; margin-bottom: 14px;
    font-family: var(--font-heading); font-weight: 800; font-size: 1rem;
    color: rgba(255,255,255,0.9); text-transform: uppercase;
}
.sidebar-logo-fallback i { color: var(--c-secondary); }

.sidebar-label {
    display: block;
    font-size: 0.62rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 2.5px;
    color: rgba(255,255,255,0.25);
}

.sidebar-nav { flex: 1; padding: 10px 0; }

.nav-item {
    display: flex; align-items: center; gap: 11px;
    padding: 11px 22px;
    color: rgba(255,255,255,0.5);
    font-size: 0.88rem; font-weight: 500;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute; left: 0; top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px; height: 55%;
    background: var(--c-primary);
    border-radius: 0 3px 3px 0;
    transition: transform 0.2s var(--ease-out);
}

.nav-item:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.04); }

.nav-item.active { color: #fff; background: rgba(56, 182, 255, 0.1); }
.nav-item.active::before { transform: translateY(-50%) scaleY(1); }

.nav-item i { width: 20px; text-align: center; font-size: 0.82rem; flex-shrink: 0; }
.nav-item-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sidebar-footer { padding: 16px 22px; border-top: 1px solid rgba(255,255,255,0.06); }
.sidebar-footer-text { font-size: 0.65rem; color: rgba(255,255,255,0.2); }

.sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 1999;
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}
.sidebar-overlay.active { opacity: 1; visibility: visible; }

/* ================================================
   FLOATING SECTION NAV (RIGHT SIDE)
   ================================================ */
.float-nav {
    position: fixed;
    right: 20px; top: 50%;
    transform: translateY(-50%);
    z-index: 800;
    display: flex; flex-direction: column;
    align-items: center; gap: 6px;
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.float-nav.visible { opacity: 1; visibility: visible; }

.float-nav-item {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--c-text-muted);
    opacity: 0.25;
    transition: all var(--transition-fast);
    position: relative;
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.float-nav-item:hover {
    opacity: 0.7;
    transform: scale(1.4);
    background: var(--c-primary);
}

.float-nav-item.active {
    opacity: 1;
    background: var(--c-primary);
    transform: scale(1.5);
    box-shadow: 0 0 0 3px var(--c-primary-soft);
}

.float-nav-item .float-tooltip {
    position: absolute;
    right: calc(100% + 12px); top: 50%;
    transform: translateY(-50%) translateX(6px);
    background: var(--c-dark);
    color: #fff;
    font-size: 0.68rem; font-weight: 600;
    font-family: var(--font-heading);
    padding: 4px 10px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0; visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.float-nav-item .float-tooltip::after {
    content: '';
    position: absolute; left: 100%; top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left-color: var(--c-dark);
}

.float-nav-item:hover .float-tooltip {
    opacity: 1; visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* ================================================
   MAIN CONTENT
   ================================================ */
.main-content {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* ================================================
   HERO
   ================================================ */
.hero-section {
    position: relative;
    padding: 100px 40px 72px;
    min-height: 540px;
    display: flex; align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute; inset: 0;
    background: url('../assets/hero-bg.png') center/cover no-repeat;
    z-index: 0;
}

.hero-overlay {
    position: absolute; inset: 0;
    background: var(--c-dark);
    opacity: 0.84;
    z-index: 1;
}

.hero-content {
    position: relative; z-index: 2;
    max-width: var(--content-max);
    margin: 0 auto; width: 100%;
}

.hero-logo-area {
    margin-bottom: 28px;
    display: flex;
    align-items: center;
}

.hero-logo-img {
    height: 52px;
    max-width: 220px;
    /* Brighten logo on dark hero background */
    filter: brightness(0) invert(1);
}

.hero-logo-fallback {
    align-items: center; gap: 10px;
    font-family: var(--font-heading); font-size: 1.4rem; font-weight: 800;
    color: #fff; letter-spacing: 2px;
}
.hero-logo-fallback i { color: var(--c-secondary); }

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 20px;
    background: rgba(56, 182, 255, 0.12);
    color: var(--c-primary);
    font-size: 0.78rem; font-weight: 700;
    letter-spacing: 1.5px; text-transform: uppercase;
    border-radius: var(--radius-full);
    border: 1px solid rgba(56, 182, 255, 0.22);
    margin-bottom: 20px;
}
.hero-badge i { font-size: 0.72rem; }

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.2rem; font-weight: 800;
    color: #fff; line-height: 1.12;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.6);
    max-width: 580px; line-height: 1.9;
    margin-bottom: 40px;
    text-align: left;
}

.hero-stats { display: flex; gap: 14px; margin-bottom: 40px; flex-wrap: wrap; }

.stat-card {
    display: flex; flex-direction: column; align-items: center;
    padding: 18px 28px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    backdrop-filter: blur(4px);
    min-width: 108px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.4rem; font-weight: 800;
    color: var(--c-primary);
}

.stat-label {
    font-size: 0.7rem; font-weight: 700;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase; letter-spacing: 1.5px;
}

.hero-cta {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 32px;
    background: var(--c-primary);
    color: #fff;
    font-weight: 700; font-size: 0.9rem;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-primary);
    transition: all var(--transition-base);
    text-transform: uppercase; letter-spacing: 1px;
}
.hero-cta:hover {
    background: var(--c-primary-dark); color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(56, 182, 255, 0.4);
}
.hero-cta i { font-size: 0.8rem; }

/* ================================================
   SECTIONS
   ================================================ */
.sections-container {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: var(--gap-section) 36px;
}

.section-block {
    margin-bottom: var(--gap-section);
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

.section-block.visible { opacity: 1; transform: translateY(0); }

.section-block.visible .section-card-body > *:nth-child(1) { animation: fadeSlideIn 0.4s 0.05s both var(--ease-out); }
.section-block.visible .section-card-body > *:nth-child(2) { animation: fadeSlideIn 0.4s 0.1s both var(--ease-out); }
.section-block.visible .section-card-body > *:nth-child(3) { animation: fadeSlideIn 0.4s 0.15s both var(--ease-out); }
.section-block.visible .section-card-body > *:nth-child(4) { animation: fadeSlideIn 0.4s 0.2s both var(--ease-out); }
.section-block.visible .section-card-body > *:nth-child(n+5) { animation: fadeSlideIn 0.4s 0.25s both var(--ease-out); }

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.section-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.section-card-header {
    display: flex; align-items: center; gap: 16px;
    padding: 24px 30px;
    background: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-color);
}

.section-header-icon {
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: var(--radius-sm);
    font-size: 1.05rem; flex-shrink: 0;
    transition: background var(--transition-fast);
}

.section-card:hover .section-header-icon { background: var(--c-primary-medium); }

.section-title {
    font-family: var(--font-heading);
    font-size: 1.4rem; font-weight: 800;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-card-body { padding: 30px; }

/* ================================================
   CONTENT BLOCKS
   ================================================ */
.content-paragraph {
    margin-bottom: 20px;
    color: var(--c-text-light);
    line-height: 1.9;
    font-size: 1.02rem;
    text-align: left;
}

.content-heading {
    font-family: var(--font-heading);
    color: var(--c-text);
    text-transform: uppercase;
}

.content-heading-h3 {
    font-size: 1.18rem; font-weight: 700;
    margin-top: 32px; margin-bottom: 16px;
    letter-spacing: 0.3px;
}

.content-heading-h4 {
    font-size: 1.02rem; font-weight: 700;
    color: var(--c-primary-dark);
    margin-top: 24px; margin-bottom: 12px;
}

.content-heading-h5 {
    font-size: 0.88rem; font-weight: 700;
    color: var(--c-text-light);
    letter-spacing: 0.5px;
    margin-top: 20px; margin-bottom: 10px;
}

.content-list { margin-bottom: 20px; }

.content-list-title {
    font-weight: 700; color: var(--c-text);
    margin-bottom: 10px; font-size: 0.96rem;
}

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

.content-list li {
    position: relative;
    padding: 6px 0 6px 30px;
    color: var(--c-text-light);
    font-size: 0.96rem; line-height: 1.8;
    text-align: left;
}

.content-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free'; font-weight: 900;
    position: absolute; left: 2px; top: 9px;
    font-size: 0.55rem;
    color: var(--c-primary);
    width: 18px; height: 18px;
    display: flex; align-items: center; justify-content: center;
    background: var(--c-primary-soft);
    border-radius: 50%;
}

.content-table {
    margin-bottom: 24px;
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
}

.content-table table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }

.content-table th {
    background: var(--c-dark);
    color: #fff;
    padding: 13px 18px;
    text-align: left; font-weight: 700;
    font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.5px;
}

.content-table td {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-light);
    color: var(--c-text-light);
}

.content-table tr:last-child td { border-bottom: none; }
.content-table tr:nth-child(even) { background: var(--bg-surface-alt); }

.content-callout {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.content-callout-info { background: var(--c-primary-soft); }
.content-callout-tip { background: rgba(42, 157, 143, 0.07); }
.content-callout-warning { background: rgba(231, 111, 81, 0.07); }

.content-callout-icon {
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 0.85rem; flex-shrink: 0;
    color: #fff;
}

.content-callout-info .content-callout-icon { background: var(--c-primary); }
.content-callout-tip .content-callout-icon { background: #2a9d8f; }
.content-callout-warning .content-callout-icon { background: #e76f51; }

.content-callout-text {
    color: var(--c-text-light);
    font-size: 0.96rem; line-height: 1.8;
    padding-top: 5px;
    text-align: left;
}

.content-quote {
    margin-bottom: 24px; padding: 24px 28px;
    background: var(--bg-surface-alt);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
}

.content-quote-mark { font-size: 1.4rem; color: var(--c-secondary); opacity: 0.6; margin-bottom: 6px; }

.content-quote-text {
    font-style: italic;
    color: var(--c-text-light);
    font-size: 1.06rem; line-height: 1.9;
    text-align: left;
}

.content-quote-author {
    margin-top: 12px;
    font-size: 0.85rem; font-weight: 700;
    color: var(--c-primary-dark);
}

.content-steps { margin-bottom: 24px; }
.content-steps-title { font-weight: 700; color: var(--c-text); margin-bottom: 14px; font-size: 1rem; }

.content-step-item {
    display: flex; gap: 16px;
    padding: 13px 0;
    border-bottom: 1px solid var(--border-light);
}
.content-step-item:last-child { border-bottom: none; }

.content-step-number {
    flex-shrink: 0;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: var(--c-primary);
    color: #fff;
    font-size: 0.78rem; font-weight: 800;
    border-radius: 50%;
    font-family: var(--font-heading);
}

.content-step-text {
    color: var(--c-text-light);
    font-size: 0.96rem; line-height: 1.8;
    padding-top: 4px;
    text-align: left;
}

.content-error {
    margin-bottom: 20px; padding: 20px 24px;
    background: rgba(231, 111, 81, 0.05);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
}

.content-error-title {
    font-weight: 800; color: #e76f51;
    margin-bottom: 6px; font-size: 0.96rem;
    text-transform: uppercase;
}
.content-error-title i { margin-right: 6px; }

.content-error-text { color: var(--c-text-light); font-size: 0.92rem; margin-bottom: 8px; text-align: left; }
.content-error-solution { color: #2a9d8f; font-weight: 700; font-size: 0.92rem; }
.content-error-solution i { margin-right: 4px; }

/* ================================================
   BIBLIOGRAPHY
   ================================================ */
.bibliography-section {
    max-width: var(--content-max);
    margin: 0 auto; padding: 0 36px var(--gap-section);
}

.bibliography-list { padding: 8px 0; }

.bib-item {
    display: flex; gap: 12px;
    padding: 11px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.92rem;
}
.bib-item:last-child { border-bottom: none; }

.bib-number { flex-shrink: 0; font-weight: 800; color: var(--c-primary); width: 30px; font-family: var(--font-heading); }
.bib-text { color: var(--c-text-light); line-height: 1.7; text-align: left; }
.bib-text a { word-break: break-all; }

/* ================================================
   TEAM
   ================================================ */
.team-section {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: 64px 36px;
}

.team-inner { max-width: 1000px; margin: 0 auto; }

.team-header { text-align: center; margin-bottom: 44px; }

.team-title {
    font-family: var(--font-heading);
    font-size: 2rem; font-weight: 800;
    color: var(--c-text); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 1px;
}

.team-subtitle { color: var(--c-text-muted); font-size: 1rem; }

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.team-card {
    display: flex; flex-direction: column; align-items: center;
    padding: 32px 22px;
    background: var(--bg-surface-alt);
    border-radius: var(--radius-lg);
    transition: all 0.35s var(--ease-out);
    text-align: center;
}

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

.team-avatar {
    width: 76px; height: 76px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.5rem; font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.team-avatar::after {
    content: '';
    position: absolute; inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--c-primary);
    opacity: 0.25;
    transition: opacity var(--transition-fast);
}

.team-card:hover .team-avatar::after { opacity: 0.5; }

.team-name {
    font-family: var(--font-heading);
    font-size: 1rem; font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
}

.team-role {
    font-size: 0.82rem;
    color: var(--c-text-muted);
    margin-top: 3px;
}

/* ================================================
    FOOTER
    ================================================ */
.main-footer {
     background: #4ec1fa;
     color: #fff;
}

.footer-inner {
     max-width: var(--content-max);
     margin: 0 auto;
     padding: 30px 36px;
}

.footer-top { display: flex; align-items: center; justify-content: space-between; }

.footer-brand { display: flex; align-items: center; gap: 10px; }

.footer-logo-img {
     height: 24px;
     max-width: 100px;
     filter: brightness(0) invert(1);
     opacity: 1;
}

.footer-logo-fallback {
     align-items: center;
     gap: 6px;
     font-family: var(--font-heading);
     font-weight: 800;
     font-size: 0.92rem;
     color: #fff;
     text-transform: uppercase;
}
.footer-logo-fallback i { color: #fff; }

.footer-link {
     color: #fff;
     font-size: 0.82rem;
     font-weight: 600;
     text-transform: uppercase;
     letter-spacing: 0.5px;
     transition: opacity var(--transition-fast);
}
.footer-link:hover { color: #fff; opacity: 0.85; }
.footer-link i { margin-right: 4px; }

.footer-divider { height: 1px; background: rgba(255,255,255,0.35); margin: 20px 0; }

.footer-bottom {
     font-size: 0.78rem;
     color: #fff;
}
.footer-bottom a { color: #fff; }
.footer-bottom a:hover { color: #fff; opacity: 0.85; }

/* ================================================
   BACK TO TOP
   ================================================ */
.back-to-top {
    position: fixed; bottom: 28px; right: 28px;
    width: 46px; height: 46px;
    background: var(--c-primary);
    color: #fff; border-radius: 50%;
    font-size: 0.95rem;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-primary);
    opacity: 0; visibility: hidden;
    transform: translateY(14px);
    transition: all var(--transition-base);
    z-index: 800;
}

.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
    background: var(--c-secondary);
    box-shadow: var(--shadow-secondary);
    transform: translateY(-3px);
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (min-width: 1025px) {
    .sidebar-toggle { display: none; }
    .float-nav { display: flex; }
}

@media (max-width: 1024px) {
    .header-nav { display: none; }
    .float-nav { display: none !important; }
    .sidebar-toggle { display: flex; }

    .sections-container,
    .bibliography-section { padding-left: 24px; padding-right: 24px; }
}

@media (max-width: 768px) {
    :root { --gap-section: 30px; }

    .hero-section { padding: 56px 24px 44px; min-height: auto; }
    .hero-title { font-size: 2rem; }
    .hero-description { font-size: 1rem; }
    .hero-logo-img { height: 40px; }

    .sections-container,
    .bibliography-section { padding-left: 18px; padding-right: 18px; }

    .section-card-header { padding: 20px 22px; }
    .section-card-body { padding: 24px; }
    .section-title { font-size: 1.15rem; }

    .modal-body { padding: 32px 24px 28px; }
    .modal-buttons { flex-direction: column; }

    .team-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .team-section { padding: 44px 18px; }

    .footer-top { flex-direction: column; gap: 14px; text-align: center; }

    .content-paragraph,
    .content-list li,
    .content-callout-text,
    .content-step-text,
    .content-quote-text { font-size: 0.94rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.6rem; letter-spacing: 0; }
    .hero-stats { gap: 10px; }
    .stat-card { padding: 14px 18px; min-width: 85px; }
    .stat-number { font-size: 1.7rem; }
    .header-inner { padding: 0 14px; }
    .header-btn-label { display: none; }

    .team-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .team-card { padding: 22px 14px; }
    .team-avatar { width: 60px; height: 60px; font-size: 1.2rem; }
    .team-name { font-size: 0.88rem; }

    .section-card-header { padding: 18px 18px; gap: 12px; }
    .section-header-icon { width: 38px; height: 38px; font-size: 0.95rem; }
    .section-title { font-size: 1.05rem; }
    .section-card-body { padding: 20px 18px; }

    .modal-logo-img { height: 40px; max-width: 160px; }
}

/* ================================================
   PRINT
   ================================================ */
@media print {
    .header, .sidebar, .progress-bar, .back-to-top, .sidebar-overlay,
    .hero-cta, .header-btn, .float-nav, .skip-link { display: none !important; }
    .main-content { margin: 0; }
    .section-card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; }
    .section-block { opacity: 1; transform: none; }
    .section-block .section-card-body > * { animation: none !important; }
}