/*
 * E2 WhatsApp - Design Tokens
 * Colors estimated from the supplied UI reference images (CLAUDE.md: "estimate the closest color").
 * Radius: CLAUDE.md mandates 20px consistently. We treat 20px as the base radius for cards/modals/
 * primary containers, and derive proportionally smaller radii for compact controls (buttons, inputs,
 * badges) so a 20px radius doesn't visually swallow a 32px-tall element - the same ratio is applied
 * everywhere so the whole app still reads as one consistent rounded system.
 */

:root {
    /* Brand */
    --color-primary: #2F6FED;
    --color-primary-hover: #2559C7;
    --color-primary-dark: #1E4FC4;
    --color-primary-light: #EAF1FE;
    --color-brand-green: #22C55E;

    /* Semantic */
    --color-success: #16A34A;
    --color-success-bg: #ECFDF3;
    --color-success-text: #027A48;
    --color-danger: #DC2626;
    --color-danger-bg: #FEF2F2;
    --color-danger-text: #B91C1C;
    --color-warning: #F59E0B;
    --color-warning-bg: #FFFAEB;
    --color-warning-text: #B54708;
    --color-info: #3B82F6;
    --color-info-bg: #EFF6FF;
    --color-info-text: #1D4ED8;
    --color-purple: #7C3AED;
    --color-purple-bg: #F5F3FF;
    --color-purple-text: #6D28D9;

    /* Surfaces (light theme default) */
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F1F5F9;
    --color-border: #E2E8F0;
    --color-border-strong: #CBD5E1;

    /* Text */
    --color-text-primary: #0F172A;
    --color-text-secondary: #64748B;
    --color-text-muted: #94A3B8;
    --color-text-inverse: #FFFFFF;

    /* Sidebar (constant across themes) */
    --color-sidebar-bg: #0B1324;
    --color-sidebar-bg-alt: #131C31;
    --color-sidebar-text: #94A3B8;
    --color-sidebar-text-active: #FFFFFF;
    --color-sidebar-active-bg: var(--color-primary);
    --color-sidebar-border: #1E293B;
    --color-sidebar-section-label: #4B5568;

    /* Radius */
    --radius-xl: 20px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --radius-pill: 999px;

    /* Shadows (soft only, per CLAUDE.md) */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 8px 32px rgba(15, 23, 42, 0.08);
    --shadow-sidebar: 4px 0 24px rgba(0, 0, 0, 0.15);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-blur: 12px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.8125rem;
    --font-size-base: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.375rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.5rem;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;

    /* Layout */
    --sidebar-width: 264px;
    --sidebar-width-collapsed: 84px;
    --topbar-height: 72px;
    --transition-fast: 150ms ease;
    --transition-base: 220ms ease;
}

:root[data-theme="dark"] {
    --color-bg: #0B1220;
    --color-surface: #111827;
    --color-surface-alt: #0D1526;
    --color-border: #1F2937;
    --color-border-strong: #2A3648;

    --color-text-primary: #F1F5F9;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;

    --color-primary-light: #16233F;

    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.45);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #0B1220;
        --color-surface: #111827;
        --color-surface-alt: #0D1526;
        --color-border: #1F2937;
        --color-border-strong: #2A3648;
        --color-text-primary: #F1F5F9;
        --color-text-secondary: #94A3B8;
        --color-text-muted: #64748B;
        --color-primary-light: #16233F;
        --glass-bg: rgba(17, 24, 39, 0.7);
        --glass-border: rgba(255, 255, 255, 0.08);
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.45);
    }
}