/* ==========================================================================
   AETHER AI CODE STUDIO - MAIN DESIGN SYSTEM
   Theme: Dark Glassmorphism, Modern IDE & AI Glow Accent
   ========================================================================== */

:root {
    /* Obsidian Dark Monochrome Palette (Cursor / Claude Dark) */
    --bg-dark: #09090b;
    --bg-panel: #121215;
    --bg-surface: #18181b;
    --bg-surface-hover: #27272a;
    --bg-glass: rgba(18, 18, 21, 0.85);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(255, 255, 255, 0.2);
    --border-focus: #52525b;
    
    /* Sleek Monochrome Accents */
    --accent-primary: #ffffff;
    --accent-primary-hover: #e4e4e7;
    --accent-secondary: #a1a1aa;
    --accent-emerald: #ffffff;
    --accent-amber: #f59e0b;
    --accent-rose: #ef4444;
    
    --glow-indigo: rgba(255, 255, 255, 0.1);
    --glow-cyan: rgba(255, 255, 255, 0.08);

    /* Text Colors */
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --text-code: #e4e4e7;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;

    /* Shadows & Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);
    --backdrop-blur: blur(12px);
    
    /* Transition */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Layout */
#app {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.06) 0%, transparent 60%),
                radial-gradient(circle at 100% 100%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
}

/* Utility Classes */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--border-subtle);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.badge-indigo {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-emerald {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-amber {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    outline: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
    background: var(--accent-primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-focus);
}

.btn-icon {
    padding: 8px;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}
.btn-icon:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
    border-color: var(--border-subtle);
}