/* ==========================================================================
   TENDERZENITH ENTERPRISE SAAS DESIGN SYSTEM TOKENS (tokens.css)
   Typography: Inter (Platform Sans) + JetBrains Mono (Data & IDs)
   Palette: Navy-Blue (#0C447C, #0F172A, #2563EB) & Crisp SaaS Neutrals
   ========================================================================== */

:root {
  /* ------------------------------------------------------------------------
     1. TYPOGRAPHY FONT FAMILIES
     ------------------------------------------------------------------------ */
  --tz-font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --tz-font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Font Weights */
  --tz-weight-regular: 400;
  --tz-weight-medium: 500;
  --tz-weight-semibold: 600;
  --tz-weight-bold: 700;

  /* Type Scale (12/14/16/18/20/24/32/44px) */
  --tz-badge-text: 0.6875rem;   /* 11px micro-badge standard */
  --tz-text-xs: 0.75rem;         /* 12px captions & metadata */
  --tz-text-base: 0.875rem;      /* 14px primary body text */
  --tz-text-md: 1rem;            /* 16px form inputs & subheadings */
  --tz-text-lg: 1.125rem;        /* 18px card headers */
  --tz-text-xl: 1.25rem;         /* 20px section headers */
  --tz-text-2xl: 1.5rem;         /* 24px secondary page titles */
  --tz-text-3xl: 2rem;           /* 32px primary page / hero headers */
  --tz-text-4xl: 2.75rem;        /* 44px display titles */
  --tz-hero-clamp: clamp(1.85rem, 3.5vw + 1rem, 2.75rem);

  /* Line Heights & Letter Spacing */
  --tz-leading-none: 1;
  --tz-leading-tight: 1.25;      /* Headings */
  --tz-leading-normal: 1.5;      /* Body copy */
  --tz-leading-relaxed: 1.625;
  --tz-tracking-tighter: -0.025em;
  --tz-tracking-tight: -0.015em;
  --tz-tracking-normal: 0;
  --tz-tracking-wide: 0.04em;
  --tz-tracking-wider: 0.08em;

  /* ------------------------------------------------------------------------
     2. COLOR PALETTE (Navy-Blue & White SaaS Theme)
     ------------------------------------------------------------------------ */
  /* Brand Navy Anchor */
  --tz-navy-brand: #0C447C;
  --tz-navy-dark: #0F172A;       /* Slate 900 Ink */
  --tz-navy-surface: #1E293B;    /* Slate 800 Dark Surfaces */
  --tz-navy-border: #334155;     /* Slate 700 Contrast Dividers */

  /* Primary Action Blue */
  --tz-blue-50: #EFF6FF;
  --tz-blue-100: #DBEAFE;
  --tz-blue-200: #BFDBFE;
  --tz-blue-300: #93C5FD;
  --tz-blue-400: #60A5FA;
  --tz-blue-500: #3B82F6;
  --tz-blue-600: #2563EB;        /* Primary SaaS Blue */
  --tz-blue-700: #1D4ED8;        /* Hover Blue */
  --tz-blue-800: #1E40AF;
  --tz-blue-900: #1E3A8A;
  --tz-accent: var(--tz-blue-600);
  --tz-accent-hover: var(--tz-blue-700);

  /* Slate Neutrals */
  --tz-white: #FFFFFF;
  --tz-slate-50: #F8FAFC;
  --tz-slate-100: #F1F5F9;
  --tz-slate-200: #E2E8F0;
  --tz-slate-300: #CBD5E1;
  --tz-slate-400: #94A3B8;
  --tz-slate-500: #64748B;
  --tz-slate-600: #475569;
  --tz-slate-700: #334155;
  --tz-slate-800: #1E293B;
  --tz-slate-900: #0F172A;

  /* Semantic Layout Aliases */
  --tz-bg-primary: var(--tz-white);
  --tz-bg-secondary: var(--tz-slate-50);
  --tz-bg-tertiary: var(--tz-slate-100);
  --tz-bg-blue-subtle: var(--tz-blue-50);

  --tz-text-primary: var(--tz-navy-dark);
  --tz-text-secondary: var(--tz-slate-600);
  --tz-text-muted: var(--tz-slate-400);
  --tz-text-inverse: var(--tz-white);

  --tz-border: var(--tz-slate-200);
  --tz-border-light: var(--tz-slate-100);
  --tz-border-hover: var(--tz-slate-300);

  /* Status Colors */
  --tz-success: #059669;
  --tz-success-bg: #ECFDF5;
  --tz-success-border: #A7F3D0;

  --tz-warning: #D97706;
  --tz-warning-bg: #FFFBEB;
  --tz-warning-border: #FDE68A;

  --tz-danger: #DC2626;
  --tz-danger-bg: #FEF2F2;
  --tz-danger-border: #FECACA;

  --tz-info: #0284C7;
  --tz-info-bg: #F0F9FF;
  --tz-info-border: #BAE6FD;

  --tz-funded: #7C3AED;
  --tz-funded-bg: #F5F3FF;
  --tz-funded-border: #DDD6FE;

  /* Legacy Badges Compatibility Mapping */
  --tz-badge-live: var(--tz-success);
  --tz-badge-live-bg: var(--tz-success-bg);
  --tz-badge-corrigenda: var(--tz-warning);
  --tz-badge-corrigenda-bg: var(--tz-warning-bg);
  --tz-badge-award: var(--tz-accent);
  --tz-badge-award-bg: var(--tz-bg-blue-subtle);
  --tz-badge-funded: var(--tz-funded);
  --tz-badge-funded-bg: var(--tz-funded-bg);
  --tz-badge-icb: var(--tz-info);
  --tz-badge-icb-bg: var(--tz-info-bg);
  --tz-badge-ncb: var(--tz-slate-600);
  --tz-badge-ncb-bg: var(--tz-slate-100);

  /* ------------------------------------------------------------------------
     3. RADIUS SCALE (6 / 8 / 12 / pill)
     ------------------------------------------------------------------------ */
  --tz-radius-xs: 2px;
  --tz-radius-sm: 6px;           /* Badges, compact buttons, dropdowns */
  --tz-radius-md: 8px;           /* Standard cards, buttons, form inputs */
  --tz-radius-lg: 12px;          /* Auth cards, large modals, featured panels */
  --tz-radius-xl: 16px;          /* Heavy dialogs */
  --tz-radius-full: 9999px;      /* Pills, avatars, circular chips */
  --tz-radius: var(--tz-radius-md); /* Legacy alias */

  /* ------------------------------------------------------------------------
     4. SHADOW SCALE (4 Levels + Focus Ring)
     ------------------------------------------------------------------------ */
  --tz-shadow-none: none;
  --tz-shadow-1: 0 1px 3px 0 rgba(15, 23, 42, 0.05);
  --tz-shadow-2: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --tz-shadow-3: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --tz-shadow-4: 0 20px 25px -5px rgba(15, 23, 42, 0.10), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --tz-shadow-subtle: var(--tz-shadow-1);
  --tz-shadow-primary: 0 4px 14px 0 rgba(37, 99, 235, 0.18);
  --tz-focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.18);
  --tz-focus-ring-danger: 0 0 0 3px rgba(220, 38, 38, 0.18);

  /* Global Containers */
  --tz-container-max: 1320px;
}

/* ==========================================================================
   GLOBAL TYPOGRAPHY ENFORCEMENT (INTER & JETBRAINS MONO)
   ========================================================================== */
html, body {
  font-family: var(--tz-font-sans);
  color: var(--tz-text-primary);
  background-color: var(--tz-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.font-mono,
.tz-mono,
code,
kbd,
samp,
pre {
  font-family: var(--tz-font-mono) !important;
}

/* Base Headings */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--tz-font-sans);
  color: var(--tz-text-primary);
  font-weight: var(--tz-weight-semibold);
  letter-spacing: var(--tz-tracking-tight);
}

/* ==========================================================================
   SHARED COMPONENT PRIMITIVES
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. BUTTONS (.tz-btn)
   -------------------------------------------------------------------------- */
.tz-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--tz-font-sans);
  font-size: var(--tz-text-base);
  font-weight: var(--tz-weight-semibold);
  line-height: var(--tz-leading-none);
  border-radius: var(--tz-radius-sm);
  min-height: 38px;
  padding: 0.5rem 1rem;
  text-decoration: none !important;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  white-space: nowrap;
  box-sizing: border-box;
  border: 1px solid transparent;
}
.tz-btn:focus-visible {
  outline: none;
  box-shadow: var(--tz-focus-ring);
}
.tz-btn:disabled,
.tz-btn.disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */
.tz-btn-primary {
  background-color: var(--tz-accent);
  border-color: var(--tz-accent);
  color: var(--tz-white) !important;
  box-shadow: var(--tz-shadow-1);
}
.tz-btn-primary:hover {
  background-color: var(--tz-accent-hover);
  border-color: var(--tz-accent-hover);
  color: var(--tz-white) !important;
  box-shadow: var(--tz-shadow-primary);
  transform: translateY(-0.5px);
}
.tz-btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--tz-shadow-1);
}

.tz-btn-secondary {
  background-color: var(--tz-bg-secondary);
  border-color: var(--tz-border);
  color: var(--tz-text-primary) !important;
}
.tz-btn-secondary:hover {
  background-color: var(--tz-bg-tertiary);
  border-color: var(--tz-border-hover);
  color: var(--tz-navy-dark) !important;
}

.tz-btn-outline {
  background-color: transparent;
  border-color: var(--tz-border);
  color: var(--tz-text-primary) !important;
}
.tz-btn-outline:hover {
  background-color: var(--tz-bg-secondary);
  border-color: var(--tz-border-hover);
  color: var(--tz-accent) !important;
}

.tz-btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--tz-text-secondary) !important;
}
.tz-btn-ghost:hover {
  background-color: var(--tz-bg-blue-subtle);
  color: var(--tz-accent) !important;
}

.tz-btn-danger {
  background-color: var(--tz-danger);
  border-color: var(--tz-danger);
  color: var(--tz-white) !important;
}
.tz-btn-danger:hover {
  background-color: #B91C1C;
  border-color: #B91C1C;
  color: var(--tz-white) !important;
}

/* Button Sizing */
.tz-btn-sm {
  min-height: 32px;
  padding: 0.25rem 0.65rem;
  font-size: var(--tz-text-xs);
  border-radius: var(--tz-radius-sm);
}
.tz-btn-lg {
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  font-size: var(--tz-text-md);
  border-radius: var(--tz-radius-md);
}

/* --------------------------------------------------------------------------
   2. CARDS (.tz-card)
   -------------------------------------------------------------------------- */
.tz-card {
  background-color: var(--tz-bg-primary);
  border: 1px solid var(--tz-border);
  border-radius: var(--tz-radius-md);
  box-shadow: var(--tz-shadow-1);
  padding: 1.25rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
  box-sizing: border-box;
}

.tz-card-hover:hover {
  border-color: var(--tz-border-hover);
  box-shadow: var(--tz-shadow-2);
  transform: translateY(-1px);
}

.tz-card-header {
  border-bottom: 1px solid var(--tz-border-light);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tz-card-title {
  font-family: var(--tz-font-sans);
  font-size: var(--tz-text-lg);
  font-weight: var(--tz-weight-semibold);
  color: var(--tz-text-primary);
  letter-spacing: var(--tz-tracking-tight);
  margin: 0;
}

.tz-card-body {
  flex: 1 1 auto;
}

.tz-card-footer {
  border-top: 1px solid var(--tz-border-light);
  padding-top: 0.75rem;
  margin-top: 1rem;
}

.tz-card-muted {
  background-color: var(--tz-bg-secondary);
}

/* --------------------------------------------------------------------------
   3. BADGES & CHIPS (.tz-badge)
   -------------------------------------------------------------------------- */
.tz-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  font-family: var(--tz-font-sans);
  font-size: var(--tz-badge-text);
  font-weight: var(--tz-weight-semibold);
  border-radius: var(--tz-radius-sm);
  line-height: 1.3;
  letter-spacing: var(--tz-tracking-wide);
  text-transform: uppercase;
  white-space: nowrap;
  box-sizing: border-box;
}

.tz-badge-live,
.tz-badge-success {
  background-color: var(--tz-success-bg);
  color: var(--tz-success);
  border: 1px solid var(--tz-success-border);
}

.tz-badge-corrigenda,
.tz-badge-warning {
  background-color: var(--tz-warning-bg);
  color: var(--tz-warning);
  border: 1px solid var(--tz-warning-border);
}

.tz-badge-award,
.tz-badge-primary {
  background-color: var(--tz-blue-50);
  color: var(--tz-accent);
  border: 1px solid var(--tz-blue-200);
}

.tz-badge-danger {
  background-color: var(--tz-danger-bg);
  color: var(--tz-danger);
  border: 1px solid var(--tz-danger-border);
}

.tz-badge-info,
.tz-badge-icb {
  background-color: var(--tz-info-bg);
  color: var(--tz-info);
  border: 1px solid var(--tz-info-border);
}

.tz-badge-funded {
  background-color: var(--tz-funded-bg);
  color: var(--tz-funded);
  border: 1px solid var(--tz-funded-border);
}

.tz-badge-neutral,
.tz-badge-ncb {
  background-color: var(--tz-slate-100);
  color: var(--tz-slate-600);
  border: 1px solid var(--tz-border);
}

.tz-badge-pill {
  border-radius: var(--tz-radius-full);
  padding: 0.25rem 0.75rem;
  text-transform: none;
}

/* --------------------------------------------------------------------------
   4. FORM CONTROLS (.tz-input, .tz-select, .tz-textarea, .tz-label)
   -------------------------------------------------------------------------- */
.tz-form-group {
  margin-bottom: 1.25rem;
}

.tz-label {
  display: block;
  font-family: var(--tz-font-sans);
  font-size: var(--tz-text-xs);
  font-weight: var(--tz-weight-semibold);
  color: var(--tz-text-secondary);
  margin-bottom: 0.35rem;
  letter-spacing: var(--tz-tracking-wide);
  text-transform: uppercase;
}

.tz-input,
.tz-select,
.tz-textarea {
  width: 100%;
  font-family: var(--tz-font-sans);
  font-size: var(--tz-text-base);
  color: var(--tz-text-primary);
  background-color: var(--tz-bg-primary);
  border: 1px solid var(--tz-border);
  border-radius: var(--tz-radius-md);
  padding: 0.55rem 0.85rem;
  min-height: 42px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  box-sizing: border-box;
}

.tz-input:hover,
.tz-select:hover,
.tz-textarea:hover {
  border-color: var(--tz-border-hover);
}

.tz-input:focus,
.tz-select:focus,
.tz-textarea:focus {
  border-color: var(--tz-accent);
  box-shadow: var(--tz-focus-ring);
}

.tz-input::placeholder,
.tz-textarea::placeholder {
  color: var(--tz-text-muted);
}

.tz-input.is-invalid,
.tz-select.is-invalid,
.tz-input-error {
  border-color: var(--tz-danger) !important;
  background-color: var(--tz-danger-bg) !important;
  box-shadow: var(--tz-focus-ring-danger) !important;
}

.tz-form-help {
  font-size: var(--tz-text-xs);
  color: var(--tz-text-muted);
  margin-top: 0.25rem;
}

.tz-form-error {
  font-size: var(--tz-text-xs);
  color: var(--tz-danger);
  margin-top: 0.25rem;
}

/* ==========================================================================
   MOBILE-FIRST ACCESSIBILITY RULES (< 768px)
   Strictly scoped inside media queries per AGENT.md guidelines
   ========================================================================== */
@media (max-width: 767.98px) {
  /* Prevent iOS Auto-Zoom by enforcing >= 16px on inputs */
  .tz-input,
  .tz-select,
  .tz-textarea,
  input[type="text"],
  input[type="search"],
  input[type="email"],
  input[type="password"],
  input[type="tel"],
  input[type="number"],
  select,
  textarea {
    font-size: 16px !important;
  }

  /* Accessible Touch Targets >= 44px */
  .tz-btn {
    min-height: 44px;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  /* Prevent Intrinsic Track blowout on mobile grid */
  .tz-grid {
    grid-template-columns: minmax(0, 1fr) !important;
  }
}