/* ============================================================
   Deucalion — Admin Portal
   Vercel / Linear aesthetic: black, monochrome, precise

   Cascade layers (#112 W22): explicit order so a stylesheet's
   specificity no longer depends on @import order alone. Later
   layers win regardless of selector weight. Unlayered rules below
   beat every layer — keep that lane for the :root token blocks +
   a11y media queries so the base theme always applies.
   ============================================================ */
@layer reset, tokens, base, primitives, components, utilities, overrides;

@import "./styles/base.css" layer(base);
@import "./styles/shell.css" layer(components);
@import "./styles/primitives.css" layer(primitives);
@import "./styles/page-primitives.css" layer(components);
@import "./styles/segmented.css" layer(components);
@import "./styles/surfaces.css" layer(components);
@import "./styles/collaboration.css" layer(components);
@import "./styles/help-center.css" layer(components);
@import "./styles/utility.css" layer(utilities);
@import "./styles/ai-ops.css" layer(components);
@import "./styles/embed-ops.css" layer(components);
@import "./styles/file-intake.css" layer(components);
@import "./styles/pdf-templates.css" layer(components);
@import "./styles/pdf-template-mobile.css" layer(components);
@import "./styles/pdf-template-studio.css" layer(components);
@import "./styles/pdf-template-proofing.css" layer(components);
@import "./styles/sift.css" layer(components);
@import "./styles/crm.css" layer(components);
@import "./styles/scheduler.css" layer(components);
@import "./styles/account.css" layer(components);
@import "./styles/assistant.css" layer(components);
@import "./styles/assistant-shell.css" layer(components);
@import "./styles/focus-mode.css" layer(components);
@import "./styles/media.css" layer(components);
@import "./styles/user-reports.css" layer(components);
@import "./styles/page-history.css" layer(components);
@import "./styles/runtime.css" layer(overrides);
@import "./styles/print.css" layer(overrides);

:root {
  color-scheme: dark;

  --white: #ededed;
  --gray-100: #969aa3;
  --gray-200: #7c828d;
  --gray-300: #5f6672;
  --gray-400: #444b56;
  --gray-500: #343a43;
  --gray-600: #232831;
  --gray-700: #1a1e25;
  --gray-800: #111419;
  --gray-900: #0b0d11;
  --black: #000;

  /* Accent — signal colour for primary actions, selection, links.
     Dark theme target: #3291ff on #0b0d11 ≈ 6.1:1 with near-black text. */
  --accent: #3291ff;
  --accent-hover: #1f7ae0;
  --accent-soft: rgba(50, 145, 255, 0.14);
  --accent-muted: rgba(50, 145, 255, 0.18);
  --accent-contrast: #061124;
  --blue: #3291ff;
  --success: #50e3c2;
  --warning: #f5a623;
  --critical: #e00;
  --color-accent: var(--accent);
  --color-success: var(--success);
  --color-warning: var(--warning);
  --color-danger: var(--critical);

  /* Near-black background per HIG Dark Mode; true --black reserved for scrims. */
  --bg: var(--gray-900);
  --bg-card: #12161d;
  --bg-hover: rgba(255, 255, 255, 0.02);
  --bg-active: rgba(255, 255, 255, 0.036);

  --text: var(--white);
  --text-secondary: var(--gray-100);
  /* Contrast targets on --bg (#0b0d11): muted ≥4.5:1 (WCAG AA body),
     faint ≥3:1 (WCAG AA non-text / large text). */
  --text-muted: #868c96;
  --text-faint: #7c828d;

  --border: rgba(255, 255, 255, 0.075);
  --border-light: rgba(255, 255, 255, 0.11);

  --radius: 10px;
  --radius-sm: 7px;
  --shadow-soft: 0 10px 26px rgba(0, 0, 0, 0.18);
  --shadow-floating: 0 20px 44px rgba(0, 0, 0, 0.28);
  /* Dual-stop focus ring: accent ring + dark halo keeps ≥3:1 on any surface
     (bg, bg-card, bg-elev, modal backdrops). Replaces prior 20%-alpha stroke
     that measured ~1.4:1 on elevated surfaces. See #104. */
  --focus-ring: 0 0 0 2px var(--accent), 0 0 0 4px rgba(0, 0, 0, 0.65);
  --focus-ring-inset: inset 0 0 0 2px var(--accent);
  --bg-secondary: #12161d;
  --surface-tint: rgba(255, 255, 255, 0.022);
  --surface-tint-strong: rgba(255, 255, 255, 0.032);
  --surface-tint-soft: rgba(255, 255, 255, 0.012);
  --surface-border-subtle: rgba(255, 255, 255, 0.05);
  --surface-border-strong: rgba(255, 255, 255, 0.068);
  --surface-header-bg: rgba(255, 255, 255, 0.01);
  --glass-bg: rgba(8, 10, 14, 0.84);
  --glass-bg-strong: rgba(9, 11, 15, 0.9);
  --material-ultra-thin-bg: rgba(10, 12, 16, 0.7);
  --material-thin-bg: rgba(10, 12, 16, 0.78);
  --material-regular-bg: rgba(9, 11, 15, 0.86);
  --material-thick-bg: rgba(9, 11, 15, 0.94);
  --material-blur-sm: 8px;
  --material-blur-md: 14px;
  --material-blur-lg: 20px;
  --material-ultra-thin-filter: saturate(150%) blur(var(--material-blur-sm));
  --material-regular-filter: saturate(160%) blur(var(--material-blur-md));
  --material-thick-filter: saturate(170%) blur(var(--material-blur-lg));
  --active-rail: rgba(255, 255, 255, 0.56);
  --active-outline-inset: rgba(255, 255, 255, 0.04);
  --search-dropdown-bg: rgba(10, 12, 16, 0.98);
  --backdrop-scrim: rgba(0, 0, 0, 0.7);
  --backdrop-scrim-soft: rgba(0, 0, 0, 0.48);
  --chart-grid: #242a34;
  --chart-axis: #343c49;
  --chart-tick: #9aa4b2;
  --chart-bar: var(--chart-1);
  --chart-1: #7ab7ff;
  --chart-2: #55d6a7;
  --chart-3: #f5c15b;
  --chart-4: #ff7a7a;
  --chart-5: #b99aff;
  --chart-6: #5dd8e8;
  --chart-7: #ffad66;
  --chart-8: #f58bc7;
  --chart-positive: var(--chart-2);
  --chart-negative: var(--chart-4);
  --chart-neutral: var(--chart-1);
  --brand-primary: #0f172a;
  --brand-secondary: #475569;
  --brand-accent: var(--accent);
  --brand-foreground: #ffffff;
  --brand-logo-bg: var(--material-thick-bg);
  --brand-logo-border: var(--surface-border-strong);
  --map-toolbar-bg: rgba(0, 0, 0, 0.82);
  --map-toolbar-border: rgba(255, 255, 255, 0.08);
  --map-popup-bg: #111;
  --map-popup-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  --map-control-bg: #111;
  --map-control-bg-hover: #1a1a1a;
  --map-control-text: #ededed;
  --map-attribution-bg: rgba(0, 0, 0, 0.7);
  --map-attribution-text: #666;
  --map-attribution-link: #888;
  --scheduler-map-panel-bg: rgba(0, 0, 0, 0.78);
  --scheduler-map-panel-border: rgba(255, 255, 255, 0.08);
  --scheduler-map-list-bg: rgba(255, 255, 255, 0.01);
  --scheduler-timeline-card-bg: rgba(255, 255, 255, 0.02);
  --scheduler-timeline-pill-bg: rgba(255, 255, 255, 0.03);
  --scheduler-capacity-track-bg: rgba(255, 255, 255, 0.08);
  --scheduler-grid-surface: rgba(9, 11, 15, 0.98);
  --scheduler-grid-surface-strong: rgba(12, 15, 20, 0.98);
  --scheduler-grid-line: rgba(255, 255, 255, 0.04);
  --scheduler-grid-line-strong: rgba(255, 255, 255, 0.05);
  --scheduler-card-bg: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.04),
    rgba(255, 255, 255, 0.02)
  );
  --report-detail-bg: rgba(255, 255, 255, 0.03);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* ────────────────────────────────────────────────────────────────────
     Layout foundations (#92 spacing/type, #106 breakpoints/safe-area/z)
     Theme-invariant — defined once in :root so both themes share.
     ──────────────────────────────────────────────────────────────────── */

  /* Spacing scale — 4pt base grid, Apple HIG Layout. */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 64px;

  /* Type scale — anchored on --text-base 14px, HIG-style modular ramp. */
  --text-xs: 11px;
  --text-sm: 12px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 17px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 28px;

  /* Line-height tokens. */
  --leading-tight: 1.2;
  --leading-snug: 1.3;
  --leading-normal: 1.45;
  --leading-loose: 1.6;

  /* Measure — single readable line length for prose (HIG ≈ 65ch). */
  --measure: 65ch;
  --measure-narrow: 48ch;
  --measure-wide: 80ch;

  /* Page rhythm tokens — consume the spacing scale to keep pages consistent. */
  --page-inset-x: var(--space-7);
  --page-inset-y: var(--space-6);
  --section-gap: var(--space-5);
  --card-pad-x: var(--space-5);
  --card-pad-y: var(--space-5);

  /* Elevation planes — each tier has its own shadow token. Used by
     cards / popovers / modals / toasts so they stop sharing one weight. */
  --elev-0: none;
  --elev-1: var(--shadow-soft);
  --elev-2: 0 14px 32px rgba(0, 0, 0, 0.24);
  --elev-3: var(--shadow-floating);
  --elev-4: 0 28px 56px rgba(0, 0, 0, 0.36);

  /* Breakpoints — single vocabulary. Reference in @media via custom-media
     fallback: write the same four values by hand. */
  --bp-sm: 640px;
  --bp-md: 960px;
  --bp-lg: 1280px;
  --bp-xl: 1440px;

  /* Z-index scale — 9 planes, no raw numbers beyond this point. */
  --z-base: 0;
  --z-raised: 10;
  --z-sticky: 100;
  --z-topbar: 400;
  --z-dropdown: 800;
  --z-drawer: 1100;
  --z-modal: 1500;
  --z-toast: 1900;
  --z-tooltip: 2000;

  /* Topbar height — measured from current shell. Used for scroll-padding
     and offset calculations across overlays. */
  --topbar-height: 46px;

  /* Form field geometry (#109) — unified input heights + labels read at
     full text weight per HIG, not muted. */
  --field-height-sm: 32px;
  --field-height-md: 40px;
  --field-height-lg: 48px;
  --field-pad-x: var(--space-3);
  --field-label-color: var(--text);
  --field-help-color: var(--text-muted);
  --form-row-gap: var(--space-3);
  --form-group-gap: var(--space-2);

  /* Canonical column-split ratios (#107) — replace page-invented fr values. */
  --col-split-balanced: 1fr 1fr;
  --col-split-detail: minmax(0, 1.6fr) minmax(320px, 0.8fr);

  /* Motion (#100) — principled easing + duration ladder. All motion is
     still gated by prefers-reduced-motion. */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --duration-fast: 150ms;
  --duration-standard: 220ms;
  --duration-slow: 350ms;

  /* Aspect-ratio tokens (#110) — stop CLS on image / chart / thumbnail
     containers. */
  --ratio-square: 1 / 1;
  --ratio-card: 4 / 3;
  --ratio-wide: 16 / 9;
  --ratio-pdf: 1 / 1.414;

  /* Touch target (#97). HIG minimum is 44px — promote on coarse pointer. */
  --touch-target-min: 44px;

  /* Overlay geometry (#112 W25) — shared by DataTable, global search,
     notifications, assistant drawer so they can't drift. */
  --overlay-gutter-desktop: 32px;
  --overlay-gutter-mobile: 24px;
  --overlay-top-safe-desktop: 144px;
  --overlay-top-safe-mobile: 104px;
}

/* Density switch (#112 W10). Opt-in via <main data-density="compact">.
   Default is comfortable. Each step collapses the --space-* ladder by
   one slot so pages that bind to tokens get tighter automatically. */
[data-density="compact"] {
  --space-1: 2px;
  --space-2: 4px;
  --space-3: 8px;
  --space-4: 12px;
  --space-5: 16px;
  --space-6: 20px;
  --space-7: 24px;
  --section-gap: var(--space-5);
  --card-pad-x: var(--space-4);
  --card-pad-y: var(--space-3);
}

/* Anchor-scroll lands below the sticky topbar (including notch inset). */
html {
  scroll-padding-top: calc(
    var(--topbar-height) + env(safe-area-inset-top) + var(--space-3)
  );
}

/* ────────────────────────────────────────────────────────────────────
   Accessibility preferences (#96)
   Honour OS-level Reduce Transparency and Increase Contrast so users
   who depend on them don't lose legibility behind glass surfaces.
   ──────────────────────────────────────────────────────────────────── */
@media (prefers-reduced-transparency: reduce) {
  :root {
    --glass-bg: var(--bg);
    --glass-bg-strong: var(--bg-card);
    --material-ultra-thin-bg: var(--bg-card);
    --material-thin-bg: var(--bg-card);
    --material-regular-bg: var(--bg-card);
    --material-thick-bg: var(--bg-card);
    --material-ultra-thin-filter: none;
    --material-regular-filter: none;
    --material-thick-filter: none;
    --search-dropdown-bg: var(--bg-card);
    --map-toolbar-bg: var(--bg-card);
    --scheduler-map-panel-bg: var(--bg-card);
  }
}

@media (prefers-contrast: more) {
  :root {
    --border: rgba(255, 255, 255, 0.35);
    --border-light: rgba(255, 255, 255, 0.5);
    --text-muted: var(--text-secondary);
    --text-faint: var(--text-muted);
    --surface-border-subtle: rgba(255, 255, 255, 0.24);
    --surface-border-strong: rgba(255, 255, 255, 0.42);
    --surface-tint-soft: rgba(255, 255, 255, 0.04);
  }
  :root[data-theme="light"] {
    --border: rgba(15, 23, 42, 0.45);
    --border-light: rgba(15, 23, 42, 0.6);
    --text-muted: var(--text-secondary);
    --text-faint: var(--text-muted);
    --surface-border-subtle: rgba(15, 23, 42, 0.18);
    --surface-border-strong: rgba(15, 23, 42, 0.28);
    --surface-tint-soft: rgba(15, 23, 42, 0.05);
  }
}

:where(
  button,
  [href],
  input,
  select,
  textarea,
  summary,
  [role="button"],
  [role="menuitem"],
  [role="option"],
  [tabindex]:not([tabindex="-1"])
):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

@media (forced-colors: active) {
  :root {
    --focus-ring: none;
  }

  :where(
    button,
    [href],
    input,
    select,
    textarea,
    summary,
    [role="button"],
    [role="menuitem"],
    [role="option"],
    [tabindex]:not([tabindex="-1"])
  ):focus-visible {
    outline: 2px solid Highlight;
    outline-offset: 2px;
    box-shadow: none;
  }
}

:root[data-theme="light"] {
  color-scheme: light;

  --white: #111827;
  --gray-100: #334155;
  --gray-200: #475569;
  --gray-300: #64748b;
  --gray-400: #94a3b8;
  --gray-500: #cbd5e1;
  --gray-600: #d9e2ec;
  --gray-700: #e6edf5;
  --gray-800: #f4f7fb;
  --gray-900: #ffffff;
  --black: #f4f7fb;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --accent-muted: rgba(37, 99, 235, 0.14);
  --accent-contrast: #ffffff;
  --blue: #2563eb;
  --success: #059669;
  --warning: #c2410c;
  --critical: #dc2626;

  --bg: #f4f7fb;
  --bg-card: #ffffff;
  --bg-hover: rgba(15, 23, 42, 0.055);
  --bg-active: rgba(37, 99, 235, 0.1);

  --text: #0f172a;
  --text-secondary: #334155;
  /* Contrast on --bg (#f4f7fb): muted ≥4.5:1, faint ≥3:1. */
  --text-muted: #546273;
  --text-faint: #6b7690;

  --border: #d9e2ec;
  --border-light: #c3d0df;

  --shadow-soft: 0 12px 28px rgba(15, 23, 42, 0.07);
  --shadow-floating: 0 20px 44px rgba(15, 23, 42, 0.11);
  /* Elevation overrides — softer shadows for the light theme. */
  --elev-2: 0 14px 32px rgba(15, 23, 42, 0.09);
  --elev-4: 0 28px 56px rgba(15, 23, 42, 0.16);
  --focus-ring: 0 0 0 2px var(--accent), 0 0 0 4px rgba(255, 255, 255, 0.7);
  --focus-ring-inset: inset 0 0 0 2px var(--accent);
  --bg-secondary: #eef3f9;
  --surface-tint: rgba(15, 23, 42, 0.032);
  --surface-tint-strong: rgba(15, 23, 42, 0.05);
  --surface-tint-soft: rgba(15, 23, 42, 0.024);
  --surface-border-subtle: rgba(15, 23, 42, 0.09);
  --surface-border-strong: rgba(15, 23, 42, 0.14);
  --surface-header-bg: rgba(248, 250, 252, 0.94);
  --glass-bg: rgba(248, 250, 252, 0.88);
  --glass-bg-strong: rgba(255, 255, 255, 0.92);
  --material-ultra-thin-bg: rgba(255, 255, 255, 0.68);
  --material-thin-bg: rgba(255, 255, 255, 0.78);
  --material-regular-bg: rgba(255, 255, 255, 0.88);
  --material-thick-bg: rgba(255, 255, 255, 0.96);
  --active-rail: rgba(37, 99, 235, 0.8);
  --active-outline-inset: rgba(37, 99, 235, 0.08);
  --search-dropdown-bg: rgba(255, 255, 255, 0.98);
  --backdrop-scrim: rgba(15, 23, 42, 0.44);
  --backdrop-scrim-soft: rgba(15, 23, 42, 0.28);
  --chart-grid: #d9e2ec;
  --chart-axis: #94a3b8;
  --chart-tick: #475569;
  --chart-bar: var(--chart-1);
  --chart-1: #2563eb;
  --chart-2: #059669;
  --chart-3: #b45309;
  --chart-4: #dc2626;
  --chart-5: #7c3aed;
  --chart-6: #0891b2;
  --chart-7: #ea580c;
  --chart-8: #db2777;
  --chart-positive: var(--chart-2);
  --chart-negative: var(--chart-4);
  --chart-neutral: var(--chart-1);
  --brand-primary: #0f172a;
  --brand-secondary: #64748b;
  --brand-accent: var(--accent);
  --brand-foreground: #ffffff;
  --brand-logo-bg: var(--material-thick-bg);
  --brand-logo-border: var(--surface-border-strong);
  --map-toolbar-bg: rgba(255, 255, 255, 0.92);
  --map-toolbar-border: rgba(15, 23, 42, 0.12);
  --map-popup-bg: #ffffff;
  --map-popup-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
  --map-control-bg: #ffffff;
  --map-control-bg-hover: #eef3f9;
  --map-control-text: #0f172a;
  --map-attribution-bg: rgba(255, 255, 255, 0.9);
  --map-attribution-text: #64748b;
  --map-attribution-link: #334155;
  --scheduler-map-panel-bg: rgba(255, 255, 255, 0.9);
  --scheduler-map-panel-border: rgba(15, 23, 42, 0.12);
  --scheduler-map-list-bg: rgba(15, 23, 42, 0.02);
  --scheduler-timeline-card-bg: rgba(255, 255, 255, 0.8);
  --scheduler-timeline-pill-bg: rgba(15, 23, 42, 0.04);
  --scheduler-capacity-track-bg: rgba(15, 23, 42, 0.1);
  --scheduler-grid-surface: rgba(255, 255, 255, 0.98);
  --scheduler-grid-surface-strong: rgba(248, 250, 252, 0.98);
  --scheduler-grid-line: rgba(15, 23, 42, 0.08);
  --scheduler-grid-line-strong: rgba(15, 23, 42, 0.1);
  --scheduler-card-bg: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.98),
    rgba(244, 247, 251, 0.94)
  );
  --report-detail-bg: rgba(15, 23, 42, 0.03);
}

.app {
  --sidebar-width: 220px;
  --sidebar-width-collapsed: 72px;
}

.app.sidebar-collapsed {
  --sidebar-width: var(--sidebar-width-collapsed);
}