/* =========================================================
   Eymistaken's HUD — Shared CSS
   Tailwind handles layout/color; this file handles:
   - Custom scrollbar
   - Prism.js overrides (api-guide)
   - Shared animations
   - Utility classes
   ========================================================= */

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

:root {
    --bg:            #131313;
    --bg-lowest:     #0e0e0e;
    --surface-low:   #1c1b1b;
    --surface-high:  #2a2a2a;
    --surface-highest: #353534;
    --green:         #55FF55;
    --green-dim:     #33e43d;
    --teal:          #49f6f6;
    --teal-dim:      #0edcdd;
    --outline:       #3c4b38;
    --muted:         #bbcbb3;
    --on-surface:    #e5e2e1;
    --font-head:     'Space Grotesk', sans-serif;
    --font-body:     'Inter', sans-serif;
    --font-mono:     'JetBrains Mono', monospace;
}

/* ---- Scrollbar ---------------------------------------- */
::-webkit-scrollbar       { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-lowest); }
::-webkit-scrollbar-thumb { background: var(--outline); border: 1px solid var(--outline); }
::-webkit-scrollbar-thumb:hover { background: var(--teal); }

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

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

.fade-up {
    opacity: 0;
    animation: fadeUp 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.cursor-blink::after {
    content: '_';
    animation: blink 1s step-end infinite;
    color: var(--green);
}

/* ---- API Guide — Prism overrides ---------------------- */
code {
    font-family: var(--font-mono);
    background: #1e2227;
    padding: 0.15em 0.45em;
    font-size: 0.875em;
    color: #abb2bf;
    border: 1px solid rgba(255,255,255,0.08);
}

pre {
    background: #1e2227 !important;
    border: 1px solid rgba(255,255,255,0.08) !important;
    border-left: 3px solid var(--teal) !important;
    padding: 1.5rem !important;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    position: relative;
}

pre code {
    background: transparent !important;
    padding: 0 !important;
    border: none !important;
    color: #abb2bf !important;
}

code[class*="language-"],
pre[class*="language-"] {
    font-family: var(--font-mono) !important;
    font-size: 0.9rem;
    text-shadow: none !important;
}

/* Copy button (api-guide) */
.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--surface-high);
    color: var(--muted);
    border: 1px solid var(--outline);
    padding: 3px 10px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover { color: var(--green); border-color: var(--green); }

/* ---- Callouts (api-guide) ----------------------------- */
.callout {
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--teal);
    background: rgba(73, 246, 246, 0.06);
    margin-bottom: 1.5rem;
}

.callout.warning {
    border-left-color: #e5c07b;
    background: rgba(229, 192, 123, 0.06);
}

.callout p { margin: 0; color: var(--on-surface); font-size: 0.95rem; }

/* ---- Scroll Reveal ---------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.42s cubic-bezier(0.2, 0.8, 0.2, 1),
                transform 0.42s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.dot-grid {
    background-image: radial-gradient(circle at 2px 2px, rgba(60, 75, 56, 0.6) 1px, transparent 0);
    background-size: 32px 32px;
}

/* ---- Nav active underline ----------------------------- */
.nav-active {
    color: var(--green) !important;
    border-bottom: 2px solid var(--green);
    padding-bottom: 2px;
}