/* 
 * Electronics Architect — Obsidian & Copper Design System
 * Stitch-generated tokens: editorial engineering aesthetic
 * Newsreader (headlines) + Manrope (body) · Burnished Copper accent
 */

:root {
    color-scheme: dark;
    /* =========================
       COLOR TOKENS
       ========================= */

    /* Primary Brand — Burnished Copper (Stitch) */
    --color-primary: #FFB77B;
    --color-primary-light: #FFDCC2;
    --color-primary-dark: #8C4F10;
    --color-primary-surface: rgba(255, 183, 123, 0.1);
    --color-primary-glow: rgba(255, 183, 123, 0.4);

    /* Secondary/Accent (used for panel headers — copper tones for dark mode contrast) */
    --color-accent: #8C4F10;
    --color-accent-light: #FFB77B;
    --color-accent-surface: rgba(140, 79, 16, 0.1);
    --color-accent-orange: #FFB77B;
    --color-accent-red: #FFB4AB;

    /* Semantic Colors */
    --color-success: #00E676;
    --color-warning: #FFAB00;
    --color-error: #FFB4AB;
    --color-info: #BAC8DA;

    /* Voltage Colors (functional — unchanged) */
    --color-voltage-ground: #607D8B;
    --color-voltage-low: #00BCD4;
    --color-voltage-3v3: #FFEB3B;
    --color-voltage-5v: #FF9800;
    --color-voltage-12v: #F44336;
    --color-voltage-high: #E91E63;

    /* Dark Theme — Obsidian & Copper (Stitch Generated) */
    --color-bg-primary: #0B0E14;
    /* Deep Obsidian */
    --color-bg-secondary: #10131A;
    /* Surface */
    --color-bg-tertiary: rgba(255, 255, 255, 0.04);
    /* Cards, Inputs */
    --color-bg-elevated: #1D2026;
    /* Surface Container */
    --color-bg-hover: rgba(255, 255, 255, 0.06);

    --color-text-primary: #E1E2EB;
    --color-text-secondary: #C6C6CB;
    --color-text-tertiary: #909095;
    --color-text-disabled: #45474B;

    --color-border: #45474B;
    /* Outline Variant */
    --color-border-light: rgba(255, 255, 255, 0.12);
    --color-divider: rgba(255, 255, 255, 0.04);

    /* =========================
       TYPOGRAPHY TOKENS
       ========================= */

    --font-family: 'Manrope', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-family-display: 'Newsreader', Georgia, 'Times New Roman', serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --font-size-xs: 10px;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* =========================
       SPACING TOKENS
       ========================= */

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* =========================
       BORDER RADIUS TOKENS
       ========================= */

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* =========================
       SHADOW & EFFECT TOKENS
       ========================= */

    --shadow-sm: 0 1px 2px rgba(11, 14, 20, 0.4);
    --shadow-md: 0 4px 12px rgba(11, 14, 20, 0.5);
    --shadow-lg: 0 12px 24px rgba(11, 14, 20, 0.5);
    --shadow-xl: 0 20px 40px rgba(11, 14, 20, 0.6);

    --shadow-glow: 0 0 15px rgba(255, 183, 123, 0.12);
    --shadow-glow-strong: 0 0 20px rgba(255, 183, 123, 0.35);

    --glass-bg: rgba(16, 19, 26, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.06);
    --glass-backdrop: blur(20px);

    /* =========================
       TRANSITION TOKENS
       ========================= */

    --transition-fast: 0.1s ease;
    --transition-normal: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.3s ease;

    /* =========================
       Z-INDEX TOKENS
       ========================= */

    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
    --z-toast: 500;
}

/* Light Theme Override — Stitch Blue Design System */
[data-theme="light"] {
    color-scheme: light;

    /* Backgrounds */
    --color-bg-primary: #F9FAFB;
    --color-bg-secondary: #FFFFFF;
    --color-bg-tertiary: #F3F4F6;
    --color-bg-elevated: #FFFFFF;
    --color-bg-hover: #E5E7EB;

    /* Primary — Corporate Blue */
    --color-primary: #3B82F6;
    --color-primary-light: #60A5FA;
    --color-primary-dark: #2563EB;
    --color-primary-surface: rgba(59, 130, 246, 0.08);
    --color-primary-glow: rgba(59, 130, 246, 0.15);

    /* Accent — Slate */
    --color-accent: #64748B;
    --color-accent-light: #94A3B8;
    --color-accent-surface: rgba(100, 116, 139, 0.08);
    --color-accent-orange: #F59E0B;
    --color-accent-red: #EF4444;

    /* Semantic */
    --color-success: #16A34A;
    --color-warning: #D97706;
    --color-error: #DC2626;
    --color-info: #3B82F6;

    /* Text */
    --color-text-primary: #1F2937;
    --color-text-secondary: #374151;
    --color-text-tertiary: #6B7280;
    --color-text-disabled: #D1D5DB;

    /* Borders */
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    --color-divider: #F3F4F6;

    /* Shadows — clean, subtle */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.1);
    --shadow-glow-strong: 0 0 20px rgba(59, 130, 246, 0.25);

    /* Glass — light frosted */
    --glass-bg: rgba(255, 255, 255, 0.92);
    --glass-border: 1px solid rgba(0, 0, 0, 0.06);
    --glass-backdrop: blur(12px);
}

/* =========================
   BASE STYLES
   ========================= */

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: var(--line-height-normal);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}