@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500@600;700;800&display=swap');

@font-face {
    font-family: 'BPG Nino Mtavruli Bold';
    src: url('../uploads/bpg_nino_mtavruli_bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

/* ─── LIGHT MODE ROOT ─── */
:root {
    --bg-primary:      #eef0f5;
    --bg-secondary:    #e4e7ef;
    --bg-card:         #f7f8fc;
    --bg-card-glass:   rgba(247,248,252,0.85);
    --bg-elevated:     #f7f8fc;
    --bg-dark-band:    #0e0e14;
    --bg-section-alt:  #e8ecf5;

    --text-primary:    #0d0f1a;
    --text-secondary:  #3d4260;
    --text-muted:      #7a7fa0;
    --text-inverse:    #f8f8f2;

    --accent:          #3b82f6;
    --accent-hover:    #2563eb;
    --accent-dim:      rgba(59,130,246,0.12);
    --accent-glow:     rgba(59,130,246,0.4);
    --accent-rgb:      59, 130, 246;

    --border-subtle:   rgba(0,0,0,0.08);
    --border-card:     rgba(0,0,0,0.06);
    --border-accent:   rgba(59,130,246,0.35);

    --nav-bg:          rgba(238,240,245,0.95);
    --nav-shadow:      0 1px 0 rgba(0,0,0,0.07);
    --footer-bg:       #e4e7ef;
    --footer-text:     #0d0f1a;

    --shadow-card:     0 2px 12px rgba(59,130,246,0.06);
    --shadow-hover:    0 8px 32px rgba(59,130,246,0.15), 6px 6px 0 rgba(0,0,0,0.06);

    --radius:          6px;
    --transition:      0.25s cubic-bezier(0.4,0,0.2,1);
    --font-head:       'BPG Nino Mtavruli Bold', 'Inter', sans-serif;
    --font-body:       'BPG Nino Mtavruli Bold', 'Inter', sans-serif;
    --font-mono:       'BPG Nino Mtavruli Bold', 'Inter', monospace;
}

body.lang-en {
    --font-head: 'Rubik', sans-serif;
    --font-body: 'Rubik', sans-serif;
    --font-mono: 'Rubik', monospace;
}

/* ─── DARK MODE ROOT ─── */
html.dark {
    --bg-primary:      #0a0a0f;
    --bg-secondary:    #111118;
    --bg-card:         #13131b;
    --bg-card-glass:   rgba(19,19,27,0.7);
    --bg-elevated:     #1a1a26;
    --bg-dark-band:    #060609;
    --bg-section-alt:  #101020;

    --text-primary:    #f0f0f5;
    --text-secondary:  #a0a0b8;
    --text-muted:      #606075;
    --text-inverse:    #0a0a0f;

    --accent:          #3b82f6;
    --accent-hover:    #60a5fa;
    --accent-dim:      rgba(59,130,246,0.12);
    --accent-glow:     rgba(59,130,246,0.35);
    --accent-rgb:      59, 130, 246;

    --border-subtle:   rgba(255,255,255,0.06);
    --border-card:     rgba(255,255,255,0.06);
    --border-accent:   rgba(59,130,246,0.4);

    --nav-bg:          rgba(10,10,15,0.95);
    --nav-shadow:      0 1px 0 rgba(255,255,255,0.04);
    --footer-bg:       #0d0d15;
    --footer-text:     #f0f0f5;

    --shadow-card:     none;
    --shadow-hover:    0 8px 32px rgba(59,130,246,0.18), 6px 6px 0 rgba(59,130,246,0.12);
}

/* ─── GLOBAL RESET & BASE ─── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    transition: background-color var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover { color: var(--accent-hover); }

h1,h2,h3,h4,h5,h6 {
    font-family: var(--font-head);
    color: var(--text-primary);
    line-height: 1.2;
}

/* ─── FUTURISTIC CARD SYSTEM ─── */
.fcard {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition),
                border-color var(--transition),
                box-shadow var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.fcard::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.fcard:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-hover);
}

.fcard:hover::before {
    transform: scaleX(1);
}

/* ─── BUTTONS ─── */
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
    text-transform: uppercase;
}

.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    color: #fff;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--accent);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 11px 27px;
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), color var(--transition), transform var(--transition);
    text-transform: uppercase;
}

.btn-outline:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

/* ─── SECTION UTILITIES ─── */
.section-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--accent);
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-head);
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}

.section-sub {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 540px;
    margin-top: 12px;
}

/* ─── DARK BAND ─── */
.dark-band {
    background: var(--bg-dark-band);
    color: var(--text-inverse);
}

html.dark .dark-band {
    color: var(--text-primary);
}

/* ─── SCROLL FADE-IN ─── */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── EXISTING COMPONENTS — CSS VAR ADAPTERS ─── */
/* Category card now uses image-overlay design — adapters only tweak shadow depth */
.category-card {
    box-shadow: 0 2px 16px rgba(0,0,0,0.10);
}

.category-card:hover {
    box-shadow: 0 16px 48px rgba(0,0,0,0.22), 0 4px 16px rgba(59,130,246,0.18) !important;
}

/* h3 is always white (over gradient), p is hidden */
.category-card h3 { color: #fff !important; }
.category-card p  { display: none !important; }

.card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-card) !important;
    box-shadow: none !important;
    border-radius: var(--radius) !important;
}

.card:hover {
    transform: translateY(-4px) !important;
    border-color: var(--border-accent) !important;
    box-shadow: var(--shadow-hover) !important;
}

.card-title, .card-text {
    color: var(--text-primary) !important;
}

/* ─── DARK MODE — BOOTSTRAP OVERRIDES ─── */
html.dark .accordion-item {
    background: var(--bg-card);
    border-color: var(--border-card);
    color: var(--text-primary);
}

html.dark .accordion-button {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

html.dark .accordion-button:not(.collapsed) {
    background: var(--accent-dim);
    color: var(--accent);
}

html.dark .list-group-item {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-card);
}

html.dark .form-control,
html.dark .form-select {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-card);
}

html.dark .form-control::placeholder {
    color: var(--text-muted);
}

html.dark .navbar {
    background-color: var(--nav-bg) !important;
}

html.dark .navbar-brand,
html.dark .nav-link {
    color: var(--text-primary) !important;
}

html.dark body {
    background-color: var(--bg-primary);
}

/* ─── GHOST LOADING SKELETON ─── */
.ghost-loading {
    position: relative;
    overflow: hidden;
    background-color: var(--bg-secondary) !important;
}

.ghost-loading::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    transform: translateX(-100%);
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.08),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

html:not(.dark) .ghost-loading::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 0, 0, 0.05),
        transparent
    );
}

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