/* Sarkari Khoj Khabar — Design Token System v2
 * Premium SaaS aesthetic · Hindi-first · WCAG AA · Mobile-first
 * Load before app.css / theme.css / components.css
 */

:root {
  /* ——— Brand palette ——— */
  --color-primary-50: #EFF6FF;
  --color-primary-100: #DBEAFE;
  --color-primary-200: #BFDBFE;
  --color-primary-500: #3B82F6;
  --color-primary-600: #2563EB;
  --color-primary-700: #1D4ED8;
  --color-primary-800: #1E40AF;
  --color-primary-900: #1E3A8A;

  --color-secondary-500: #7C3AED;
  --color-secondary-600: #6D28D9;
  --color-accent-500: #0D9488;
  --color-accent-600: #0F766E;

  /* India trust accent (subtle, not dominant) */
  --color-saffron: #FF9933;
  --color-india-green: #138808;

  /* ——— Semantic colors (light) ——— */
  --color-success: #15803D;
  --color-success-bg: #F0FDF4;
  --color-success-border: #BBF7D0;

  --color-warning: #B45309;
  --color-warning-bg: #FFFBEB;
  --color-warning-border: #FDE68A;

  --color-danger: #B91C1C;
  --color-danger-bg: #FEF2F2;
  --color-danger-border: #FECACA;

  --color-info: #0369A1;
  --color-info-bg: #F0F9FF;
  --color-info-border: #BAE6FD;

  /* ——— Surfaces & text ——— */
  --color-text: #0F172A;
  --color-text-secondary: #334155;
  --color-text-muted: #64748B;
  --color-text-disabled: #94A3B8;
  --color-text-inverse: #FFFFFF;

  --color-bg: #F8FAFC;
  --color-bg-subtle: #F1F5F9;
  --color-bg-elevated: #FFFFFF;
  --color-bg-overlay: rgba(15, 23, 42, 0.48);

  --color-surface: #FFFFFF;
  --color-surface-raised: #FFFFFF;
  --color-surface-sunken: #F1F5F9;
  --color-surface-hover: #F8FAFC;

  --color-border: #E2E8F0;
  --color-border-strong: #CBD5E1;
  --color-border-focus: rgba(37, 99, 235, 0.45);

  /* ——— Legacy aliases (app.css compatibility) ——— */
  --brand: var(--color-primary-800);
  --brand-hover: var(--color-primary-700);
  --brand-soft: var(--color-primary-50);
  --indigo: var(--color-secondary-600);
  --text: var(--color-text);
  --body: var(--color-text-secondary);
  --muted: var(--color-text-muted);
  --bg1: var(--color-bg);
  --bg2: #E8EEF9;
  --bg: linear-gradient(180deg, var(--bg1) 0%, var(--bg2) 100%);
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-sunken);
  --surface-3: #E2E8F0;
  --border: var(--color-border-strong);
  --border-soft: var(--color-border);
  --success: var(--color-success);
  --warning: var(--color-warning);
  --danger: var(--color-danger);
  --telegram: var(--color-accent-600);

  /* ——— Interactive states ——— */
  --state-hover-bg: rgba(30, 64, 175, 0.06);
  --state-active-bg: rgba(30, 64, 175, 0.12);
  --state-focus-ring: 0 0 0 3px var(--color-border-focus);
  --state-disabled-opacity: 0.55;

  /* ——— Typography ——— */
  --font-sans: Inter, "Noto Sans Devanagari", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: var(--font-sans);
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;

  --text-display: clamp(2.25rem, 4vw, 3.5rem);
  --text-h1: clamp(1.75rem, 3vw, 2.25rem);
  --text-h2: clamp(1.375rem, 2.2vw, 1.625rem);
  --text-h3: 1.125rem;
  --text-h4: 1rem;
  --text-body: 0.9375rem;
  --text-body-lg: 1.0625rem;
  --text-caption: 0.75rem;
  --text-label: 0.6875rem;
  --text-button: 0.875rem;
  --text-nav: 0.8125rem;

  /* Legacy size aliases */
  --text-xs: var(--text-label);
  --text-sm: var(--text-nav);
  --text-base: var(--text-body);
  --text-lg: var(--text-h3);
  --text-xl: var(--text-h2);
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;

  --leading-tight: 1.15;
  --leading-snug: 1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;
  --leading: var(--leading-normal);

  --tracking-tight: -0.03em;
  --tracking-normal: 0;
  --tracking-wide: 0.06em;
  --tracking-wider: 0.1em;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* ——— Spacing scale (4px base) ——— */
  --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;
  --space-20: 80px;
  --space-24: 96px;

  /* ——— Radius ——— */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --r: var(--radius-md);
  --r-lg: var(--radius-lg);
  --r-xl: var(--radius-xl);

  /* ——— Elevation ——— */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 28px 64px rgba(15, 23, 42, 0.16);
  --shadow: var(--shadow-md);
  --shadow-focus: var(--state-focus-ring);

  /* ——— Motion ——— */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --duration-fast: 120ms;
  --duration-normal: 200ms;
  --duration-slow: 320ms;

  /* ——— Layout ——— */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1180px;
  --container-2xl: 1280px;
  --header-h: 68px;
  --mobile-nav-h: 64px;

  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1180px;

  /* ——— Icons ——— */
  --icon-xs: 14px;
  --icon-sm: 16px;
  --icon-md: 20px;
  --icon-lg: 24px;
  --icon-xl: 32px;

  /* ——— Z-index scale ——— */
  --z-dropdown: 30;
  --z-sticky: 40;
  --z-header: 50;
  --z-overlay: 60;
  --z-modal: 70;
  --z-toast: 80;
}

/* ——— Dark mode ——— */
.dark {
  --color-text: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-text-disabled: #64748B;

  --color-bg: #0B1120;
  --color-bg-subtle: #0F172A;
  --color-bg-elevated: #111827;
  --color-bg-overlay: rgba(0, 0, 0, 0.65);

  --color-surface: #111827;
  --color-surface-raised: #1E293B;
  --color-surface-sunken: #0F172A;
  --color-surface-hover: #1E293B;

  --color-border: #1E293B;
  --color-border-strong: #334155;

  --color-success-bg: rgba(22, 163, 74, 0.12);
  --color-success-border: rgba(22, 163, 74, 0.28);
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-warning-border: rgba(245, 158, 11, 0.28);
  --color-danger-bg: rgba(220, 38, 38, 0.12);
  --color-danger-border: rgba(220, 38, 38, 0.28);
  --color-info-bg: rgba(37, 99, 235, 0.12);
  --color-info-border: rgba(37, 99, 235, 0.28);

  --brand-soft: rgba(30, 64, 175, 0.22);
  --bg1: #0B1120;
  --bg2: #0F172A;
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-sunken);
  --surface-3: #334155;
  --border: var(--color-border-strong);
  --border-soft: var(--color-border);
  --text: var(--color-text);
  --body: var(--color-text-secondary);
  --muted: var(--color-text-muted);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);
  --shadow: var(--shadow-md);
}

/* ——— Accessibility ——— */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: none;
  box-shadow: var(--state-focus-ring);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}