/* Turbo GPT — Base styles (variables, reset, typography) */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #07070b;
    --bg-card: rgba(255,255,255,0.03);
    --bg-elevated: #0b0b12;
    --ink-700: #16162a;
    --ink-800: #11111b;
    --ink-900: #0d0d14;
    --ink-950: #07070b;
    --accent-violet: #8B5CF6;
    --accent-cyan: #22D3EE;
    --accent-emerald: #10B981;
    --accent-fuchsia: #D946EF;
    --text: #ffffff;
    --text-muted: rgba(255,255,255,0.55);
    --text-dim: rgba(255,255,255,0.35);
    --border: rgba(255,255,255,0.08);
    --border-light: rgba(255,255,255,0.12);
    --gradient: linear-gradient(135deg, #8B5CF6 0%, #D946EF 50%, #22D3EE 100%);
    --gradient-text: linear-gradient(135deg, #C4B5FD, #E879F9, #67E8F9);
    --shadow-glow: 0 0 24px rgba(139,92,246,0.45);
    --navbar-h: 70px;
    --sidebar-w: 260px;
    --mobile-nav-h: 64px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --font: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;
    --transition: 0.2s ease;
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

@media (max-width: 768px) {
    input, textarea, select { font-size: 16px !important; }
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

.syntax-mono { font-family: var(--font-mono); }
.syntax-gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.syntax-bg {
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139,92,246,0.15), transparent),
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 100% 100%, 48px 48px, 48px 48px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-ghost {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 14px; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
}
.syntax-card {
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-xl);
    position: relative;
}
.syntax-border-gradient {
    position: relative;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-xl);
}
.syntax-border-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(140deg, rgba(167,139,250,0.4), rgba(217,70,239,0.2), rgba(34,211,238,0.4));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
    transition: var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent-violet);
    box-shadow: 0 0 0 3px rgba(139,92,246,0.15);
}
.form-textarea { min-height: 120px; resize: vertical; }

/* Tooltip / hint */
.hint {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-dim);
    cursor: help;
}
.hint-icon {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid var(--text-dim);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
}
[data-tooltip] { position: relative; }
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 10px;
    background: var(--ink-700);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 100;
}
[data-tooltip]:hover::after { opacity: 1; }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 16px;
}
.alert-success { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-error { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-info { background: rgba(139,92,246,0.12); border: 1px solid rgba(139,92,246,0.3); color: #c4b5fd; }

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.badge-violet { background: rgba(139,92,246,0.15); border: 1px solid rgba(139,92,246,0.3); color: #c4b5fd; }
.badge-emerald { background: rgba(16,185,129,0.15); color: #6ee7b7; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(139,92,246,0.5); }

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }