/* ═══════════════════════════════════════════════════════════════
   BASE STYLES - Shared across all pages
   Updated to match landing page's lighter, neutral color scheme
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS VARIABLES ─────────────────────────────────────────── */
:root {
  /* Professional Color Palette - Matching Landing Page */
  --charcoal: #323031;        /* Deep charcoal - primary dark */
  --slate: #3D3B3C;           /* Dark grey - secondary */
  --stone: #7F7979;           /* Medium grey - text */
  --sand: #C1BDB3;            /* Warm light grey - accents */
  --mauve: #5F5B6B;           /* Purple-grey - subtle accent */
  
  /* Primary Colors */
  --g-blue: #5F5B6B;          /* Mauve for primary actions */
  --g-blue-hover: #4a4655;
  --g-blue-pale: rgba(95, 91, 107, 0.08);
  --g-blue-faint: rgba(95, 91, 107, 0.04);
  --g-blue-border: rgba(95, 91, 107, 0.2);
  
  --g-navy: #323031;
  --g-white: #FFFFFF;
  --g-off: #f4f2ee;           /* Light warm beige background - matching landing */
  
  /* Text Colors */
  --g-ink: #323031;
  --g-ink-muted: #7F7979;
  --g-ink-faint: #C1BDB3;
  
  /* Abbreviated aliases (for templates) */
  --g-ink-mu: #7F7979;
  --g-ink-f: #C1BDB3;
  --g-ink-m: #3D3B3C;
  --g-bd: rgba(50, 48, 49, 0.1);
  --g-bd-m: rgba(50, 48, 49, 0.15);
  --g-blue-bd: rgba(95, 91, 107, 0.2);
  --g-blue-h: #4a4655;
  
  /* Landing page variable aliases (for compatibility) */
  --blue: #5F5B6B;
  --blue-hover: #4a4655;
  --blue-light: #7F7979;
  --blue-pale: rgba(95, 91, 107, 0.08);
  --blue-faint: rgba(95, 91, 107, 0.04);
  --blue-border: rgba(95, 91, 107, 0.2);
  --navy: #323031;
  --navy-mid: #3D3B3C;
  --white: #FFFFFF;
  --off-white: #f4f2ee;
  --ink: #323031;
  --ink-mid: #3D3B3C;
  --ink-muted: #7F7979;
  --ink-faint: #C1BDB3;
  --radius: 10px;
  --stone-2: #faf7f0;
  --testing: #faf7f0;
  
  /* Neutrals - Lighter, warmer tones matching landing */
  --border: rgba(50,48,49,0.1);
  --border-med: rgba(50,48,49,0.15);
  --bg-canvas: #faf7f0;
  --bg-card: #FFFFFF;
  
  /* Semantic Colors */
  --success: #0a6b42;
  --success-bg: rgba(15, 110, 70, 0.09);
  --success-border: rgba(15, 110, 70, 0.18);
  
  --warning: #8a6000;
  --warning-bg: rgba(180, 120, 0, 0.09);
  --warning-border: rgba(180, 120, 0, 0.18);
  
  --danger: #991a1a;
  --danger-bg: rgba(190, 40, 40, 0.09);
  --danger-border: rgba(190, 40, 40, 0.18);
  
  /* Typography - Matching logo aesthetic */
  --font-heading: 'Montserrat', 'Inter', system-ui, -apple-system, sans-serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  
  /* Shadows - with subtle mauve tint */
  --shadow-sm: 0 1px 4px rgba(50,48,49,0.07), 0 4px 16px rgba(95,91,107,0.06);
  --shadow-md: 0 4px 8px rgba(50, 48, 49, 0.1);
  --shadow-lg: 0 12px 24px rgba(95, 91, 107, 0.15);
  
  /* Landing page shadow aliases */
  --shadow: 0 2px 8px rgba(50,48,49,0.08), 0 8px 32px rgba(95,91,107,0.08);
  --g-shsm: 0 1px 4px rgba(50,48,49,0.07), 0 4px 16px rgba(95,91,107,0.06);
  --g-sh: 0 2px 8px rgba(50,48,49,0.08), 0 8px 32px rgba(95,91,107,0.08);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* ─── RESET & BASE STYLES ───────────────────────────────────── */
/* Note: Use reset.css for comprehensive reset */
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--g-ink);
  background: var(--g-off);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── APP CHROME ────────────────────────────────────────────── */
.app-nav {
  background: var(--g-white);
  border-color: var(--g-bd-m);
  position: relative;
}

.app-nav::before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--mauve) 0%, var(--slate) 50%, var(--mauve) 100%);
  opacity: 0.6;
}

.app-nav a,
.app-nav button {
  color: var(--g-ink-mu);
}

.app-nav a:hover {
  color: var(--g-ink);
}

.app-nav button:hover {
  background: var(--g-blue-faint);
}

#sidebar-drawer {
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--g-white);
  border-color: var(--g-bd-m);
  will-change: transform;
}

#sidebar-drawer.open {
  transform: translateX(0);
}

#sidebar-backdrop {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  background: rgba(0, 0, 0, 0.3);
}

#sidebar-backdrop.open {
  opacity: 1;
  pointer-events: all;
}

/* ─── TYPOGRAPHY ────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--g-navy);
  letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; font-weight: 800; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.5rem; font-weight: 700; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.125rem; font-weight: 600; }
h6 { font-size: 1rem; font-weight: 600; }

p { margin-bottom: 1rem; }

a {
  color: var(--g-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--g-blue-hover);
}

/* ─── BUTTONS ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--g-blue);
  color: var(--g-white);
}

.btn-primary:hover {
  background: var(--g-blue-hover);
  color: var(--g-white);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--g-white);
  color: var(--g-blue);
  border: 1.5px solid var(--border-med);
}

.btn-secondary:hover {
  background: var(--g-blue-faint);
  border-color: var(--g-blue-border);
}

.btn-ghost {
  background: transparent;
  color: var(--g-ink);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  background: var(--g-blue-faint);
  color: var(--g-blue);
}

.btn-blue {
  background: linear-gradient(135deg, var(--mauve) 0%, #4a4655 100%);
  color: var(--g-white);
  font-weight: 600;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(95, 91, 107, 0.25);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-blue::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s;
}

.btn-blue:hover::before {
  left: 100%;
}

.btn-blue:hover {
  background: linear-gradient(135deg, #4a4655 0%, var(--mauve) 100%);
  color: var(--g-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(95, 91, 107, 0.35);
}

.btn-outline {
  border: 1.5px solid var(--g-bd-m);
  border-radius: 8px;
  background: var(--g-white);
  color: var(--g-ink-m);
  transition: all var(--transition-fast);
  position: relative;
}

.btn-outline:hover {
  border-color: var(--mauve);
  color: var(--mauve);
  background: var(--g-blue-faint);
  box-shadow: 0 4px 12px rgba(95, 91, 107, 0.12);
}

/* ─── CARDS ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--g-navy);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.card-body {
  color: var(--g-ink-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ─── FORMS ─────────────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--g-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--g-ink);
  background: var(--g-white);
  border: 1.5px solid var(--border-med);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--g-blue);
  box-shadow: 0 0 0 3px var(--g-blue-pale);
}

.form-input::placeholder {
  color: var(--g-ink-faint);
}

/* ─── TAGS & BADGES ─────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.tag-success {
  background: var(--success-bg);
  color: var(--success);
  border-color: var(--success-border);
}

.tag-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border-color: var(--warning-border);
}

.tag-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.tag-info {
  background: var(--g-blue-pale);
  color: var(--g-blue);
  border-color: var(--g-blue-border);
}

/* ─── SHARED UI HELPERS ─────────────────────────────────────── */
.card-lift {
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.card-lift:hover {
  transform: translateY(-3px);
  box-shadow: var(--g-sh);
  border-color: var(--g-blue-bd) !important;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mauve);
  margin-bottom: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 500;
}

.section-label::before {
  content: "";
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--mauve), var(--stone));
  border-radius: 1px;
  flex-shrink: 0;
}

/* ─── ANIMATIONS ────────────────────────────────────────────── */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn .4s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ─── UTILITIES ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

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

/* ─── GRID SYSTEM ───────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ─── LOADING STATES ────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.spinner {
  border: 2px solid var(--border);
  border-top-color: var(--g-blue);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}