/* =====================================================================
 * Hotelrank × Lighthouse — Design Tokens
 * ---------------------------------------------------------------------
 * Source of truth for colors, typography, spacing, radii, and shadows.
 * Primary brand color is Lighthouse Blaze Orange (#FF5B06).
 * Neutrals, semantic colors, and chart palette inherit from the existing
 * Hotelrank system.
 *
 * Usage:
 *   <link rel="stylesheet" href="tokens.css" />
 *   color: var(--color-primary);
 *
 * Add `data-theme="dark"` to <html> or <body> to switch to dark mode.
 * ===================================================================== */

:root {
  /* ---------- Brand ---------- */
  --color-brand-50:  #FFF1EB;
  --color-brand-100: #FFE0CE;
  --color-brand-200: #FFC097;
  --color-brand-300: #FFA060;
  --color-brand-400: #FF8033;
  --color-brand-500: #FF5B06; /* Lighthouse Blaze Orange — PRIMARY */
  --color-brand-600: #E14D00;
  --color-brand-700: #B83F00;
  --color-brand-800: #8C3000;
  --color-brand-900: #5C2000;

  --color-primary:        var(--color-brand-500);
  --color-primary-hover:  var(--color-brand-600);
  --color-primary-active: var(--color-brand-700);
  --color-primary-soft:   var(--color-brand-50);
  --color-primary-on:     #FFFFFF; /* text on primary */

  /* ---------- Neutrals ---------- */
  --color-neutral-0:    #FFFFFF;
  --color-neutral-50:   #F8F9FA;
  --color-neutral-100:  #F1F3F5;
  --color-neutral-200:  #E9ECEF;
  --color-neutral-300:  #DEE2E6;
  --color-neutral-400:  #CED4DA;
  --color-neutral-500:  #ADB5BD;
  --color-neutral-600:  #6C757D;
  --color-neutral-700:  #495057;
  --color-neutral-800:  #343A40;
  --color-neutral-900:  #212529;
  --color-neutral-1000: #0F0F0F;

  /* ---------- Semantic ---------- */
  --color-success:    #019C00;
  --color-success-bg: #E5F4E5;
  --color-warning:    #FFC502;
  --color-warning-bg: #FFF8E0;
  --color-danger:     #C11F1F;
  --color-danger-bg:  #FBE5E5;
  --color-info:       #1AA7EE;
  --color-info-bg:    #E3F4FD;

  /* ---------- Surfaces (light mode) ---------- */
  --bg-canvas:    var(--color-neutral-50);   /* page background */
  --bg-surface:   var(--color-neutral-0);    /* cards, panels */
  --bg-raised:    var(--color-neutral-0);    /* modals, popovers */
  --bg-sunken:    var(--color-neutral-100);  /* inputs, wells */
  --bg-muted:     var(--color-neutral-200);  /* hover rows, chips */

  --text-primary:   var(--color-neutral-900);
  --text-secondary: var(--color-neutral-700);
  --text-muted:     var(--color-neutral-600);
  --text-disabled:  var(--color-neutral-500);
  --text-inverse:   var(--color-neutral-0);
  --text-link:      var(--color-brand-600);
  --text-link-hover:var(--color-brand-700);

  --border-subtle:  var(--color-neutral-200);
  --border-default: var(--color-neutral-300);
  --border-strong:  var(--color-neutral-400);
  --border-focus:   var(--color-brand-500);

  /* ---------- Chart palette (preserved from Hotelrank) ---------- */
  /* Use in this order for consistent multi-series charts. */
  --chart-1:  #FF5B06; /* brand orange — leading series */
  --chart-2:  #1AA7EE; /* sky blue */
  --chart-3:  #007D8E; /* teal */
  --chart-4:  #88E99A; /* mint */
  --chart-5:  #019C00; /* green */
  --chart-6:  #FFC502; /* yellow */
  --chart-7:  #FF6283; /* pink */
  --chart-8:  #9654E5; /* purple */
  --chart-9:  #4328E7; /* indigo (legacy primary) */
  --chart-10: #29DAE4; /* aqua */
  --chart-11: #C11F1F; /* red */

  /* ---------- Typography ---------- */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  --font-weight-regular:  400;
  --font-weight-medium:   500;
  --font-weight-semibold: 600;
  --font-weight-bold:     700;

  /* Type scale — modular, base 16px */
  --text-xs:   0.75rem;   /* 12 — captions, labels */
  --text-sm:   0.875rem;  /* 14 — secondary body, table cells */
  --text-base: 1rem;      /* 16 — body */
  --text-lg:   1.125rem;  /* 18 — emphasised body */
  --text-xl:   1.25rem;   /* 20 — small headings */
  --text-2xl:  1.5rem;    /* 24 — H3 */
  --text-3xl:  1.875rem;  /* 30 — H2 */
  --text-4xl:  2.25rem;   /* 36 — H1 */
  --text-5xl:  3rem;      /* 48 — display */

  --leading-tight:   1.2;
  --leading-snug:    1.35;
  --leading-normal:  1.5;
  --leading-relaxed: 1.65;

  --tracking-tight:  -0.01em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;

  /* ---------- Spacing — 4px base scale ---------- */
  --space-0:  0;
  --space-1:  0.25rem;  /* 4 */
  --space-2:  0.5rem;   /* 8 */
  --space-3:  0.75rem;  /* 12 */
  --space-4:  1rem;     /* 16 */
  --space-5:  1.25rem;  /* 20 */
  --space-6:  1.5rem;   /* 24 */
  --space-8:  2rem;     /* 32 */
  --space-10: 2.5rem;   /* 40 */
  --space-12: 3rem;     /* 48 */
  --space-16: 4rem;     /* 64 */
  --space-20: 5rem;     /* 80 */
  --space-24: 6rem;     /* 96 */

  /* ---------- Radius ---------- */
  --radius-xs:   2px;
  --radius-sm:   4px;
  --radius-md:   8px;   /* default for buttons, inputs, chips */
  --radius-lg:   12px;  /* cards */
  --radius-xl:   16px;  /* large cards, modals */
  --radius-2xl:  24px;  /* hero panels */
  --radius-full: 9999px;

  /* ---------- Shadows ---------- */
  --shadow-xs:    0 1px 2px rgba(15, 15, 15, 0.04);
  --shadow-sm:    0 1px 3px rgba(15, 15, 15, 0.06), 0 1px 2px rgba(15, 15, 15, 0.04);
  --shadow-md:    0 4px 8px -2px rgba(15, 15, 15, 0.08), 0 2px 4px -2px rgba(15, 15, 15, 0.04);
  --shadow-lg:    0 12px 24px -8px rgba(15, 15, 15, 0.12), 0 4px 8px -4px rgba(15, 15, 15, 0.06);
  --shadow-xl:    0 24px 48px -12px rgba(15, 15, 15, 0.18);
  --shadow-focus: 0 0 0 3px rgba(255, 91, 6, 0.25); /* brand-tinted focus ring */
  --shadow-brand: 0 8px 24px -8px rgba(255, 91, 6, 0.45);

  /* ---------- Layout ---------- */
  --container-sm:  640px;
  --container-md:  768px;
  --container-lg:  1024px;
  --container-xl:  1280px;
  --container-2xl: 1536px;

  /* ---------- Motion ---------- */
  --duration-fast:   120ms;
  --duration-normal: 200ms;
  --duration-slow:   320ms;
  --easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --easing-emphasis: cubic-bezier(0.3, 0, 0.1, 1);

  /* ---------- Z-index ---------- */
  --z-dropdown: 1000;
  --z-sticky:   1020;
  --z-overlay:  1040;
  --z-modal:    1050;
  --z-popover:  1060;
  --z-toast:    1070;
}

/* =====================================================================
 * Dark theme — apply with [data-theme="dark"] on <html> or <body>
 * ===================================================================== */
[data-theme="dark"] {
  --bg-canvas:    var(--color-neutral-1000);
  --bg-surface:   #1A1A1A;
  --bg-raised:    #242424;
  --bg-sunken:    #141414;
  --bg-muted:     #2A2A2A;

  --text-primary:   #FFFFFF;
  --text-secondary: #D0D0D0;
  --text-muted:     #A0A0A0;
  --text-disabled:  #6C757D;
  --text-inverse:   var(--color-neutral-900);
  --text-link:      var(--color-brand-300);
  --text-link-hover:var(--color-brand-200);

  --border-subtle:  #2A2A2A;
  --border-default: #333333;
  --border-strong:  #404040;

  --shadow-xs:    0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-sm:    0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md:    0 4px 8px -2px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg:    0 12px 24px -8px rgba(0, 0, 0, 0.6);
  --shadow-xl:    0 24px 48px -12px rgba(0, 0, 0, 0.7);
}

/* =====================================================================
 * Base resets — opt-in. Comment out if integrating with Bootstrap/Tailwind.
 * ===================================================================== */
.ds-base {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =====================================================================
 * Component primitives — minimal, opt-in classes
 * ===================================================================== */

/* Button */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--duration-fast) var(--easing-standard),
              border-color var(--duration-fast) var(--easing-standard),
              box-shadow var(--duration-fast) var(--easing-standard);
}
.ds-btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.ds-btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.ds-btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-on);
}
.ds-btn--primary:hover { background: var(--color-primary-hover); }
.ds-btn--primary:active { background: var(--color-primary-active); }

.ds-btn--secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.ds-btn--secondary:hover { background: var(--bg-muted); }

.ds-btn--ghost {
  background: transparent;
  color: var(--text-primary);
}
.ds-btn--ghost:hover { background: var(--bg-muted); }

.ds-btn--danger {
  background: var(--color-danger);
  color: #FFFFFF;
}

/* Card */
.ds-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

/* Input */
.ds-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--easing-standard),
              box-shadow var(--duration-fast) var(--easing-standard);
}
.ds-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

/* Badge */
.ds-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  color: var(--color-brand-700);
}
.ds-badge--success { background: var(--color-success-bg); color: var(--color-success); }
.ds-badge--warning { background: var(--color-warning-bg); color: #8C6D00; }
.ds-badge--danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.ds-badge--info    { background: var(--color-info-bg);    color: var(--color-info); }
