/* ==========================================================================
   KeptCarbon — Editorial Greenhouse Design System
   Shared visual language across auth, dashboard, and map-draw pages.
   Derived from the marketing page (.beautiful-section-header, .stats-box,
   .keptcarbon-meaning-card, gradient text, hero grid overlay).
   ========================================================================== */

:root {
  --kc-green: #2d9e5f;
  --kc-green-d: #1e7a47;
  --kc-green-50: #edfaf3;
  --kc-teal: #0d9488;
  --kc-mint: #4ade80;
  --kc-ink: #1a3d2b;
  --kc-ink-soft: #2d4d3a;
  --kc-sage: #5a7a65;
  --kc-sage-soft: #738f7d;
  --kc-line: rgba(45, 158, 95, 0.12);
  --kc-line-strong: rgba(45, 158, 95, 0.25);
  --kc-cream: #f8fdfb;
  --kc-cream-2: #f8fbf9;

  --kc-grad: linear-gradient(135deg, #2d9e5f, #0d9488);
  --kc-grad-soft: linear-gradient(135deg, rgba(45, 158, 95, 0.1), rgba(13, 148, 136, 0.1));

  --kc-shadow-card: 0 10px 40px rgba(45, 158, 95, 0.06);
  --kc-shadow-lift: 0 16px 40px rgba(45, 158, 95, 0.12);
  --kc-shadow-button: 0 10px 24px rgba(45, 158, 95, 0.3);
  --kc-shadow-button-hover: 0 14px 32px rgba(45, 158, 95, 0.4);

  --kc-radius-sm: 10px;
  --kc-radius-md: 14px;
  --kc-radius-lg: 20px;
  --kc-radius-pill: 50px;
}

/* ==========================================================================
   1. Atmospheric backgrounds (cream + grid + soft orbs)
   Reused by the auth shell and dashboard welcome hero.
   ========================================================================== */
.kc-cream-bg {
  background: linear-gradient(180deg, #f8fdfb 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}
.kc-cream-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(45, 158, 95, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(13, 148, 136, 0.05) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}
.kc-cream-bg > * { position: relative; z-index: 1; }

.kc-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 158, 95, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 158, 95, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.kc-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
  z-index: 0;
  animation: kcFloat 9s ease-in-out infinite;
}
.kc-orb-a {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(45, 158, 95, 0.22) 0%, transparent 65%);
  top: -180px; right: -120px;
}
.kc-orb-b {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.18) 0%, transparent 65%);
  bottom: -120px; left: -100px;
  animation-delay: -4.5s;
  animation-direction: reverse;
}
@keyframes kcFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(24px, -24px); }
}

/* ==========================================================================
   2. Eyebrow pill (matches .project-tag from marketing)
   ========================================================================== */
.kc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: var(--kc-radius-pill);
  background: rgba(45, 158, 95, 0.1);
  color: var(--kc-green);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
  border: 1px solid rgba(45, 158, 95, 0.22);
  text-transform: uppercase;
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
}
.kc-eyebrow.kc-eyebrow-dark {
  background: rgba(0, 0, 0, 0.55);
  color: var(--kc-mint);
  border-color: rgba(74, 222, 128, 0.4);
  text-transform: none;
  letter-spacing: 0.4px;
}

/* ==========================================================================
   3. Headlines + title divider
   ========================================================================== */
.kc-headline {
  font-size: 44px;
  font-weight: 800;
  color: var(--kc-ink);
  line-height: 1.15;
  letter-spacing: -0.8px;
  margin: 0;
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
}
.kc-headline-sm { font-size: 32px; letter-spacing: -0.5px; }
.kc-headline-xs { font-size: 24px; letter-spacing: -0.3px; }
.kc-headline .kc-grad-text,
.kc-grad-text {
  background: var(--kc-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.kc-sub {
  color: var(--kc-sage);
  font-size: 15px;
  line-height: 1.7;
  margin: 8px 0 0;
}
.kc-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 14px 0 18px;
}
.kc-divider .line { height: 1px; width: 60px; background: #cbd5e1; }
.kc-divider .dash { height: 4px; width: 44px; background: var(--kc-green); border-radius: 4px; }

/* ==========================================================================
   4. Glass card (the marketing meaning-card vibe)
   ========================================================================== */
.kc-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--kc-radius-lg);
  box-shadow: var(--kc-shadow-card);
  position: relative;
  overflow: hidden;
}
.kc-card-accent {
  border-left: 4px solid var(--kc-green);
}
.kc-card::after {
  content: "";
  position: absolute;
  top: -30px;
  right: -30px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(45, 158, 95, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.kc-card-clean::after { display: none; }

/* ==========================================================================
   5. Buttons (lift on hover, gradient primary)
   ========================================================================== */
.kc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--kc-radius-md);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
  text-decoration: none;
  white-space: nowrap;
}
.kc-btn:disabled { opacity: 0.6; cursor: not-allowed; pointer-events: none; }

.kc-btn-primary {
  background: var(--kc-grad);
  color: #fff;
  box-shadow: var(--kc-shadow-button);
}
.kc-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--kc-shadow-button-hover);
  color: #fff;
}

.kc-btn-ghost {
  background: rgba(45, 158, 95, 0.06);
  color: var(--kc-green-d);
  border-color: rgba(45, 158, 95, 0.18);
}
.kc-btn-ghost:hover {
  background: rgba(45, 158, 95, 0.12);
  border-color: rgba(45, 158, 95, 0.32);
  color: var(--kc-green-d);
  transform: translateY(-2px);
}

.kc-btn-soft {
  background: #fff;
  color: var(--kc-green-d);
  border-color: var(--kc-line);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.kc-btn-soft:hover {
  border-color: var(--kc-line-strong);
  box-shadow: 0 8px 22px rgba(45, 158, 95, 0.1);
  color: var(--kc-green-d);
  transform: translateY(-2px);
}

.kc-btn-danger {
  background: rgba(229, 62, 62, 0.08);
  color: #c53030;
  border-color: rgba(229, 62, 62, 0.18);
}
.kc-btn-danger:hover { background: rgba(229, 62, 62, 0.14); color: #c53030; }

.kc-btn-sm { padding: 9px 18px; font-size: 13px; border-radius: 11px; }
.kc-btn-lg { padding: 16px 36px; font-size: 16px; border-radius: 16px; }
.kc-btn-block { width: 100%; }

/* Spinner inside buttons */
.kc-spin {
  width: 16px; height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: kcSpin 0.7s linear infinite;
}
@keyframes kcSpin { to { transform: rotate(360deg); } }

/* ==========================================================================
   6. Form fields (refined inputs)
   ========================================================================== */
.kc-field { display: block; margin-bottom: 16px; }
.kc-field-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--kc-sage);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  margin-bottom: 7px;
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
}
.kc-field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 540px) { .kc-field-grid { grid-template-columns: 1fr; } }

.kc-input-wrap { position: relative; }
.kc-input-wrap > i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--kc-sage-soft);
  font-size: 15px;
  pointer-events: none;
  transition: color 0.2s;
}
.kc-input,
.kc-input-wrap input,
.kc-input-wrap select,
.kc-input-wrap textarea {
  width: 100%;
  padding: 12px 14px 12px 42px;
  background: #ffffff;
  border: 1.5px solid #e6f0ea;
  border-radius: 12px;
  font-size: 14px;
  color: var(--kc-ink);
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
  outline: none;
  transition: all 0.2s;
}
.kc-input:focus,
.kc-input-wrap input:focus,
.kc-input-wrap select:focus,
.kc-input-wrap textarea:focus {
  border-color: var(--kc-green);
  background: var(--kc-green-50);
  box-shadow: 0 0 0 4px rgba(45, 158, 95, 0.12);
}
.kc-input-wrap input:focus + i,
.kc-input-wrap:focus-within > i { color: var(--kc-green); }
.kc-input-wrap input::placeholder { color: #b3c4ba; }
.kc-input-bare { padding-left: 14px; }
.kc-input-bare + i { display: none; }

.kc-pwd-meter {
  margin-top: 6px;
  height: 3px;
  border-radius: 4px;
  background: #e6f0ea;
  overflow: hidden;
}
.kc-pwd-meter > div {
  height: 100%;
  border-radius: 4px;
  transition: all 0.3s;
}

/* ==========================================================================
   7. Alerts
   ========================================================================== */
.kc-alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 11px;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 16px;
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
}
.kc-alert.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #c53030;
}
.kc-alert.success {
  background: var(--kc-green-50);
  border: 1px solid rgba(45, 158, 95, 0.3);
  color: var(--kc-green-d);
}

/* ==========================================================================
   8. Soft divider with center text
   ========================================================================== */
.kc-divider-text {
  position: relative;
  text-align: center;
  color: var(--kc-sage-soft);
  font-size: 11.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 22px 0;
  font-weight: 600;
}
.kc-divider-text::before,
.kc-divider-text::after {
  content: "";
  position: absolute;
  top: 50%;
  width: calc(50% - 32px);
  height: 1px;
  background: var(--kc-line);
}
.kc-divider-text::before { left: 0; }
.kc-divider-text::after { right: 0; }

/* ==========================================================================
   9. Sticky pill (used by brand mark, status indicators)
   ========================================================================== */
.kc-brand-stamp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 8px;
  border-radius: var(--kc-radius-pill);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--kc-line);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}
.kc-brand-stamp img { width: 28px; height: 28px; border-radius: 8px; }
.kc-brand-stamp .name { font-size: 14px; font-weight: 800; color: var(--kc-ink); letter-spacing: -0.3px; }
.kc-brand-stamp .name span { color: var(--kc-green); }