/* ================================================================
   main.css — Global styles, dark mode, design tokens
   Mobile-first, dark default, respects prefers-color-scheme
   ================================================================ */

/* ── CSS Custom Properties (Design Tokens) ───────────────────── */
:root {
    /* Dark mode defaults */
    --bg-primary:    #0d0d0d;
    --bg-secondary:  #141414;
    --bg-card:       #1a1a1a;
    --bg-surface:    #222222;
    --border-color:  #2a2a2a;

    --text-primary:  #f0f0f0;
    --text-secondary:#a0a0a0;
    --text-muted:    #666666;

    --accent-blue:   #4f8ef7;
    --accent-green:  #22c55e;
    --accent-orange: #f97316;
    --accent-yellow: #eab308;
    --accent-red:    #ef4444;

    --radius-sm:  6px;
    --radius-md:  12px;
    --radius-lg:  20px;
    --radius-xl:  28px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.6);

    --transition: 0.2s ease;

    --safe-top:    env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);

    --header-bg: rgba(13, 13, 13, 0.92);
}

/* Light mode override via media query */
@media (prefers-color-scheme: light) {
    :root {
        --bg-primary:    #f8f9fa;
        --bg-secondary:  #ffffff;
        --bg-card:       #ffffff;
        --bg-surface:    #f1f3f5;
        --border-color:  #dee2e6;

        --text-primary:  #212529;
        --text-secondary:#495057;
        --text-muted:    #6c757d;

        --shadow-sm:  0 1px 3px rgba(0,0,0,0.1);
        --shadow-md:  0 4px 16px rgba(0,0,0,0.12);
        --shadow-lg:  0 8px 32px rgba(0,0,0,0.16);

        --header-bg: rgba(248, 249, 250, 0.92);
    }
}

/* Manual theme overrides — attribute selector beats media query */
html[data-bs-theme="dark"] {
    --bg-primary:    #0d0d0d;
    --bg-secondary:  #141414;
    --bg-card:       #1a1a1a;
    --bg-surface:    #222222;
    --border-color:  #2a2a2a;
    --text-primary:  #f0f0f0;
    --text-secondary:#a0a0a0;
    --text-muted:    #666666;
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.6);
    --header-bg: rgba(13, 13, 13, 0.92);
}

html[data-bs-theme="light"] {
    --bg-primary:    #f8f9fa;
    --bg-secondary:  #ffffff;
    --bg-card:       #ffffff;
    --bg-surface:    #f1f3f5;
    --border-color:  #dee2e6;
    --text-primary:  #212529;
    --text-secondary:#495057;
    --text-muted:    #6c757d;
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.1);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.16);
    --header-bg: rgba(248, 249, 250, 0.92);
}

/* ── Base ─────────────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    min-height: 100dvh;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Typography ───────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

/* ── Cards ────────────────────────────────────────────────────── */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.card-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

/* ── Forms ────────────────────────────────────────────────────── */
.form-control,
.form-select {
    background-color: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-surface);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(79, 142, 247, 0.2);
}

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

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition);
}

.btn-primary {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}
.btn-primary:hover {
    background-color: #3d7be0;
    border-color: #3d7be0;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-lg {
    border-radius: var(--radius-md);
    font-size: 1rem;
    letter-spacing: 0.01em;
}

/* ── Game background ──────────────────────────────────────────── */
.game-bg {
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 20% 20%, rgba(79, 142, 247, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 80%, rgba(34, 197, 94, 0.04) 0%, transparent 60%);
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.3; }
}

.blink { animation: blink 1.5s ease-in-out infinite; }

.fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
}

/* ── Divider text ─────────────────────────────────────────────── */
.divider-text {
    position: relative;
    text-align: center;
    margin: 0.5rem 0;
}
.divider-text::before,
.divider-text::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--border-color);
}
.divider-text::before { left: 0; }
.divider-text::after  { right: 0; }

/* ── Font monospace ───────────────────────────────────────────── */
.font-monospace {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace !important;
}

/* ── Bootstrap dark mode overrides ───────────────────────────── */
[data-bs-theme="dark"] .modal-content {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

[data-bs-theme="dark"] .list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-bs-theme="dark"] .table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(255,255,255,0.04);
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-bs-theme="dark"] .table > :not(caption) > * > * {
    border-bottom-color: var(--border-color);
}

/* ── Scrollbar styling (Webkit) ───────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Safe area support (iPhone notch) ────────────────────────── */
.safe-top    { padding-top:    var(--safe-top); }
.safe-bottom { padding-bottom: var(--safe-bottom); }


/* ── Bootstrap overrides for dark theme ──────────────────────── */
.text-muted {
    color: var(--text-secondary) !important;
}

/* ── Join card ────────────────────────────────────────────────── */
.join-card {
    color: var(--text-primary);
}

.join-welcome-text {
    color: var(--text-primary);
}

/* ── Theme toggle button ──────────────────────────────────────── */
.theme-toggle-btn {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    padding: 0;
    font-size: 0.95rem;
    line-height: 1;
}
.theme-toggle-btn:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}

/* ── Language switcher ────────────────────────────────────────── */
.btn-lang {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    background: transparent;
    transition: background 0.15s, color 0.15s;
}
.btn-lang:hover {
    color: var(--text-primary);
    background: var(--bg-surface);
}
.btn-lang.active {
    color: var(--text-primary);
    background: var(--bg-surface);
    border-color: var(--text-secondary);
}