/* ============================================================
   design-tokens.css — Design System v2
   Source: design.md (HRIS Mobile App Design System v0.1)
   Applies to: SystemUp Parfait Website
   ============================================================ */

/* --- Inter Font (loaded via Google Fonts in page_start.php) --- */

:root {
  /* ============================================================
     Blue Ramp
     ============================================================ */
  --blue-10: #05222e;
  --blue-20: #0a445c;
  --blue-30: #0f668a;
  --blue-40: #1488b8;
  --blue-50: #19aae6;
  --blue-60: #47bbeb;
  --blue-70: #75ccf0;
  --blue-80: #a3ddf5;
  --blue-90: #d1eefa;
  --blue-95: #e8f7fc;

  /* ============================================================
     Grey Ramp
     ============================================================ */
  --grey-10: #18191b;
  --grey-20: #303236;
  --grey-30: #484b51;
  --grey-40: #60646c;
  --grey-50: #787d87;
  --grey-60: #93979f;
  --grey-70: #aeb1b7;
  --grey-80: #c9cbcf;
  --grey-90: #e4e5e7;
  --grey-95: #f1f2f3;
  --grey-100: #ffffff;

  /* ============================================================
     Green / Amber / Red Ramps (Status)
     ============================================================ */
  --green-30: #22774d;
  --green-40: #2e9e66;
  --green-60: #61d199;
  --green-90: #d8f4e6;

  --amber-30: #8e5e0b;
  --amber-50: #ec9c13;
  --amber-60: #f0b042;
  --amber-90: #fbe9d0;

  --red-40: #b3261a;
  --red-50: #df3020;
  --red-60: #e6594d;
  --red-90: #f9d6d2;

  /* ============================================================
     Semantic Tokens (Light Mode — default)
     ============================================================ */
  --color-primary: var(--blue-30);
  --color-primary-accent: var(--blue-40);
  --color-primary-subtle: var(--blue-90);
  --color-primary-tint: var(--blue-95);

  --color-text-primary: var(--grey-10);
  --color-text-body: var(--grey-40);
  --color-text-secondary: var(--grey-50);
  --color-text-disabled: var(--grey-60);
  --color-text-on-primary: #ffffff;

  --color-border-default: var(--grey-70);
  --color-border-input: var(--grey-80);

  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-subtle: var(--grey-95);
  --color-surface-page: var(--grey-100);

  --color-success: var(--green-30);
  --color-success-fill: var(--green-40);
  --color-success-subtle: var(--green-90);

  --color-warning: var(--amber-30);
  --color-warning-fill: var(--amber-50);
  --color-warning-subtle: var(--amber-90);

  --color-error: var(--red-40);
  --color-error-action: var(--red-50);
  --color-error-subtle: var(--red-90);

  /* ============================================================
     Typography Tokens (Inter)
     ============================================================ */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;

  --text-display: 700 32px/40px var(--font-family);
  --text-headline: 700 24px/32px var(--font-family);
  --text-title: 600 18px/24px var(--font-family);
  --text-body-large: 400 16px/24px var(--font-family);
  --text-body: 400 14px/20px var(--font-family);
  --text-body-strong: 600 14px/20px var(--font-family);
  --text-label: 600 13px/16px var(--font-family);
  --text-caption: 400 12px/16px var(--font-family);

  /* ============================================================
     Spacing Scale (8pt grid + 4pt half-step)
     ============================================================ */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;

  /* ============================================================
     Border Radius
     ============================================================ */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

/* ============================================================
   Dark Mode — Semantic Token Overrides
   ============================================================ */
[data-theme="dark"] {
  --color-primary: var(--blue-60);
  --color-primary-accent: var(--blue-50);
  --color-primary-subtle: var(--blue-20);
  --color-primary-tint: var(--blue-10);

  --color-text-primary: var(--grey-95);
  --color-text-body: var(--grey-70);
  --color-text-secondary: var(--grey-60);

  --color-surface: var(--grey-10);
  --color-surface-elevated: var(--grey-20);
  --color-surface-subtle: var(--grey-10);
  --color-surface-page: var(--grey-10);

  --color-success: var(--green-60);
  --color-warning: var(--amber-60);
  --color-error: var(--red-60);

  --color-border-default: var(--grey-50);
  --color-border-input: var(--grey-60);
}

/* ============================================================
   Global Styles
   ============================================================ */
body {
  font-family: var(--font-family);
  color: var(--color-text-body);
  background-color: var(--color-surface);
  transition: color 0.3s ease, background-color 0.3s ease;
}

/* ============================================================
   Typography Utility Classes
   ============================================================ */
.text-display {
  font: var(--text-display);
  color: var(--color-text-primary);
}
.text-headline {
  font: var(--text-headline);
  color: var(--color-text-primary);
}
.text-title {
  font: var(--text-title);
  color: var(--color-text-primary);
}
.text-body {
  font: var(--text-body);
  color: var(--color-text-body);
}
.text-body-strong {
  font: var(--text-body-strong);
  color: var(--color-text-primary);
}
.text-label {
  font: var(--text-label);
  color: var(--color-text-body);
}
.text-caption {
  font: var(--text-caption);
  color: var(--color-text-secondary);
}

/* ============================================================
   Glassmorphism Utility Classes
   ============================================================ */
.glass {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}
[data-theme="dark"] .glass {
  background: rgba(24, 25, 27, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
}

/* --- Glass Navbar --- */
.glass-nav {
  background: rgba(255, 255, 255, 0.7) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}
[data-theme="dark"] .glass-nav {
  background: rgba(24, 25, 27, 0.85) !important;
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

/* --- Glass Card (for feature cards, product cards) --- */
.glass-card {
  background: rgba(255, 255, 255, 0.65) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.glass-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}
[data-theme="dark"] .glass-card {
  background: rgba(48, 50, 54, 0.75) !important;
  border-color: rgba(255, 255, 255, 0.06) !important;
}
[data-theme="dark"] .glass-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* --- Glass Section (for section backgrounds like stats, features) --- */
.glass-section {
  background: rgba(241, 242, 243, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
[data-theme="dark"] .glass-section {
  background: rgba(24, 25, 27, 0.5);
}

/* ============================================================
   Override Bootstrap Utility Classes for Dark Mode
   ============================================================ */
[data-theme="dark"] .text-dark {
  color: var(--color-text-primary) !important;
}
[data-theme="dark"] .bg-light {
  background-color: var(--color-surface-elevated) !important;
}
[data-theme="dark"] .text-muted {
  color: var(--color-text-secondary) !important;
}
[data-theme="dark"] .navbar-light {
  --bs-navbar-color: rgba(255, 255, 255, 0.65);
  --bs-navbar-hover-color: rgba(255, 255, 255, 0.85);
  --bs-navbar-active-color: #ffffff;
}
.btn-primary {
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  color: var(--color-text-on-primary) !important;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: filter 0.2s, box-shadow 0.2s, transform 0.2s !important;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] .btn-primary {
  background-color: var(--blue-30);
  border-color: var(--blue-30);
  color: var(--color-text-on-primary);
}

/* ============================================================
   Interaction States (Hover, Pressed, Focus, Disabled)
   ============================================================ */
.btn,
.nav-link,
.dropdown-item,
.list-group-item,
a {
  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

/* Hover — 8% dark overlay on light, 8% light overlay on dark */
.btn-primary:hover {
  filter: brightness(0.92);
}
.btn-primary:active {
  filter: brightness(0.85);
}
[data-theme="dark"] .btn-primary:hover {
  filter: brightness(1.08);
}
[data-theme="dark"] .btn-primary:active {
  filter: brightness(1.15);
}

/* Focus ring */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Disabled */
.btn:disabled,
.btn.disabled {
  opacity: 0.38;
  pointer-events: none;
}

/* ============================================================
   Dark Mode Toggle Button
   ============================================================ */
.dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  margin-left: var(--space-sm);
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, background-color 0.2s;
}
.dark-mode-toggle .icon-dark { display: none; }
[data-theme="dark"] .dark-mode-toggle .icon-light { display: none; }
[data-theme="dark"] .dark-mode-toggle .icon-dark { display: inline; }

.dark-mode-toggle:hover {
  color: var(--color-primary);
  background-color: rgba(0, 0, 0, 0.05);
}
[data-theme="dark"] .dark-mode-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

/* ============================================================
   Scrollbar (consistent width across themes)
   ============================================================ */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--grey-20);
}
::-webkit-scrollbar-thumb {
  background: var(--grey-40);
  border-radius: 0.25rem;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--grey-50);
}
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--grey-10);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--grey-50);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--grey-60);
}