/* ============================================================
   Contact Me — UI 2026 Design Tokens
   ============================================================ */

:root {
  color-scheme: light;

  /* Brand palette (light) */
  --primary: #6b9e7d;
  --primary-dark: #4e7a5e;
  --primary-light: #e8f0e4;
  --primary-soft: #f1f7ee;
  --accent: #c9a96e;
  --accent-light: #f5edd6;
  --accent-soft: #faf3e2;

  /* Surfaces */
  --bg: #faf8f4;
  --bg-elevated: #ffffff;
  --card: #ffffff;
  --card-muted: #f6f4ee;
  --border: #e6e2d8;
  --border-soft: #efece4;

  /* Text */
  --text: #2c322f;
  --text-secondary: #6f7570;
  --text-muted: #9a9d96;

  /* Semantic */
  --success: #7bb88a;
  --error: #d97373;
  --warning: #e4b85c;

  /* Shadows (greenish) */
  --shadow-xs: 0 1px 2px rgba(44,50,47,0.04);
  --shadow-sm: 0 2px 8px rgba(107,158,125,0.06);
  --shadow-md: 0 4px 16px rgba(107,158,125,0.08);
  --shadow-lg: 0 8px 30px rgba(107,158,125,0.10);
  --shadow-xl: 0 24px 60px rgba(107,158,125,0.14);
  --shadow-ring: 0 0 0 3px rgba(107,158,125,0.18);

  /* Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  /* Layout */
  --sidebar-width: 220px;

  /* Typography */
  --font-display: 'Manrope', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Fluid type scale */
  --fs-display: clamp(2.25rem, 5.5vw + 0.5rem, 4.25rem);
  --fs-h1: clamp(1.6rem, 2.5vw + 0.85rem, 2.5rem);
  --fs-h2: clamp(1.25rem, 1.4vw + 0.85rem, 1.85rem);
  --fs-h3: clamp(1.05rem, 0.6vw + 0.9rem, 1.25rem);
  --fs-lead: clamp(1rem, 0.6vw + 0.85rem, 1.18rem);
  --fs-body: 0.95rem;
  --fs-small: 0.82rem;

  /* Mesh gradients (used cross-page) */
  --mesh-hero:
    radial-gradient(1100px 580px at 8% -10%, rgba(107,158,125,0.18), transparent 60%),
    radial-gradient(800px 480px at 95% 0%, rgba(201,169,110,0.16), transparent 60%),
    radial-gradient(720px 520px at 50% 110%, rgba(107,158,125,0.10), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, #f3f1ea 100%);

  --mesh-card:
    radial-gradient(420px 280px at 0% 0%, rgba(255,255,255,0.18), transparent 60%),
    radial-gradient(420px 280px at 100% 100%, rgba(0,0,0,0.10), transparent 60%),
    linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);

  --mesh-soft:
    radial-gradient(600px 360px at 10% 0%, rgba(107,158,125,0.10), transparent 60%),
    radial-gradient(600px 360px at 100% 100%, rgba(201,169,110,0.10), transparent 60%);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;
}

/* ── Dark theme ─────────────────────────────────────────────── */
[data-theme="dark"] {
  color-scheme: dark;

  --primary: #8cc09e;
  --primary-dark: #6fae87;
  --primary-light: #1f2a23;
  --primary-soft: #1a221d;
  --accent: #d9b97f;
  --accent-light: #2c2519;
  --accent-soft: #221d14;

  --bg: #0f1311;
  --bg-elevated: #161b18;
  --card: #181d1a;
  --card-muted: #131815;
  --border: #2a3230;
  --border-soft: #232927;

  --text: #ecf0ec;
  --text-secondary: #a3aba6;
  --text-muted: #6f766f;

  --success: #8cc09e;
  --error: #e08989;
  --warning: #e8c277;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.45);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.55);
  --shadow-ring: 0 0 0 3px rgba(140,192,158,0.22);

  --mesh-hero:
    radial-gradient(1100px 580px at 8% -10%, rgba(140,192,158,0.18), transparent 60%),
    radial-gradient(800px 480px at 95% 0%, rgba(217,185,127,0.10), transparent 60%),
    radial-gradient(720px 520px at 50% 110%, rgba(140,192,158,0.08), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, #0a0d0b 100%);

  --mesh-card:
    radial-gradient(420px 280px at 0% 0%, rgba(255,255,255,0.06), transparent 60%),
    radial-gradient(420px 280px at 100% 100%, rgba(0,0,0,0.30), transparent 60%),
    linear-gradient(135deg, #2c4a37 0%, #1a2c21 100%);

  --mesh-soft:
    radial-gradient(600px 360px at 10% 0%, rgba(140,192,158,0.08), transparent 60%),
    radial-gradient(600px 360px at 100% 100%, rgba(217,185,127,0.06), transparent 60%);
}

/* ============================================================
   Reset & base
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  transition: background-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: var(--text);
}

a { color: var(--primary-dark); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--primary); }

img { max-width: 100%; height: auto; }

::selection { background: var(--primary-light); color: var(--text); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: -0.005em;
  transition: background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: scale(0.98) translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--shadow-ring); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(107,158,125,0.30); }

[data-theme="dark"] .btn-primary { color: #0f1311; }

.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover:not(:disabled) { background: var(--primary-light); color: var(--primary-dark); }

[data-theme="dark"] .btn-outline { color: var(--primary); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 8px 12px;
}
.btn-ghost:hover:not(:disabled) { background: var(--primary-light); color: var(--primary-dark); box-shadow: none; transform: none; }

.btn-danger { background: var(--error); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #c25a5a; }

.btn-sm { padding: 7px 14px; font-size: 0.82rem; }
.btn-xs { padding: 4px 9px; font-size: 0.75rem; border-radius: var(--radius-xs); }
.btn-icon { padding: 6px; width: 36px; height: 36px; border-radius: var(--radius-sm); }
.btn-pill { border-radius: var(--radius-pill); }

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

/* CTA arrow icon helper */
.btn .btn-arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--dur-base) var(--ease-spring);
}
.btn:hover:not(:disabled) .btn-arrow { transform: translateX(3px); }

/* ============================================================
   Cards & surfaces
   ============================================================ */

.card {
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 22px;
  transition: background-color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.card-lg { padding: 28px; border-radius: var(--radius-lg); }

.surface-mesh { background: var(--mesh-soft), var(--bg); }

/* ============================================================
   Forms
   ============================================================ */

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-elevated);
  transition: border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background-color var(--dur-base) var(--ease-out);
}

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--shadow-ring);
}

.form-group textarea { resize: vertical; min-height: 72px; }

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.grid-2col .full-width { grid-column: 1 / -1; }

/* ============================================================
   Header
   ============================================================ */

.header {
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border-soft);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.header-logo { height: 40px; transition: transform var(--dur-base) var(--ease-spring); }
.header-logo:hover { transform: scale(1.04) rotate(-2deg); }

.header-nav { display: flex; align-items: center; gap: 10px; }

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--dur-base) var(--ease-out),
              background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary-dark); }
.theme-toggle:active { transform: scale(0.94); }
.theme-toggle svg { width: 18px; height: 18px; transition: transform var(--dur-slow) var(--ease-spring), opacity var(--dur-base) var(--ease-out); }

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ============================================================
   Toast
   ============================================================ */

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  z-index: 9999;
  animation: toastSlideIn 0.35s var(--ease-spring);
  max-width: 320px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}
.toast-success { background: rgba(123,184,138,0.95); }
.toast-error { background: rgba(217,115,115,0.95); }
.toast-warning { background: rgba(214,158,46,0.95); }

@keyframes toastSlideIn {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

/* ============================================================
   Utilities
   ============================================================ */

.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-success { background: var(--primary-light); color: var(--primary-dark); }
.badge-warning { background: var(--accent-light); color: #8a6d2b; }
[data-theme="dark"] .badge-warning { color: var(--accent); }

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

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

.skeleton {
  background: linear-gradient(90deg, var(--card-muted) 0%, var(--border-soft) 50%, var(--card-muted) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.lift-on-hover {
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.lift-on-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 80ms);
}
.reveal-stagger.in-view > * { opacity: 1; transform: translateY(0); }

/* Collapsible */
.collapsible-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.collapsible-trigger::after {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--text-secondary);
  border-bottom: 2px solid var(--text-secondary);
  transform: rotate(-45deg);
  transition: transform var(--dur-base) var(--ease-out);
  flex-shrink: 0;
}
.collapsible-trigger.open::after { transform: rotate(45deg); }
.collapsible-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out), opacity var(--dur-base) var(--ease-out);
  opacity: 0;
}
.collapsible-body.open {
  max-height: 800px;
  opacity: 1;
}

/* Section title */
.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.015em;
}

/* Inline edit */
.inline-edit-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.inline-edit-row input,
.inline-edit-row select {
  padding: 7px 10px;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-family: inherit;
  background: var(--bg-elevated);
  color: var(--text);
}
.inline-edit-row input:focus,
.inline-edit-row select:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(107,158,125,0.15);
}

/* Confirm dialog */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: overlayFadeIn 0.2s ease;
}
@keyframes overlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.confirm-dialog {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 360px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: dialogPopIn 0.3s var(--ease-spring);
}
@keyframes dialogPopIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.confirm-dialog p { margin-bottom: 20px; font-size: 0.95rem; color: var(--text); }
.confirm-dialog .confirm-actions { display: flex; gap: 10px; justify-content: center; }

/* ============================================================
   Reduced motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}

/* ============================================================
   Mobile
   ============================================================ */

@media (max-width: 768px) {
  .container { padding: 0 14px; }
  .card { padding: 16px; }
  .card-lg { padding: 20px; }
  .grid-2col { grid-template-columns: 1fr; }
}