/* ==========================================================================
   Leavely — Login (Sakura Pink — Light default + Dark mode)
   Type: Noto Sans Thai
   ========================================================================== */

:root,
[data-theme="light"] {
  /* Text tiers (ink scale = pure dark text on light) */
  --ink-900: #0a0a0a;
  --ink-800: #1a1a1a;
  --ink-700: #2e2e2e;
  --ink-500: #6b6b6b;
  --ink-400: #9a9a9a;
  --ink-300: #c9b0bf;
  --ink-200: #e8d4df;
  --ink-100: #f4e6ee;
  --ink-50:  #fbf2f6;

  --paper:   #fdf7fa;          /* off-white warm */
  --paper-2: #ffffff;           /* form surface */
  --line:    rgba(131, 24, 67, 0.06);
  --line-2:  rgba(131, 24, 67, 0.12);

  --accent:     #db2777;        /* rose 600 */
  --accent-2:   #ec4899;        /* pink 500 */
  --accent-glow: rgba(219, 39, 119, 0.16);
  --gold:       #db2777;

  /* Brand panel (left) ยังคงเป็น plum-dark เพื่อให้ first impression มี contrast */
  --brand-bg-1: #0f0a12;
  --brand-bg-2: #1a111d;
  --brand-text: #f5eef2;
  --brand-text-sub: rgba(232, 220, 228, 0.65);
  --brand-line: rgba(251, 207, 232, 0.12);
  --brand-grid: rgba(251, 207, 232, 0.05);

  --field-bg:       #ffffff;
  --field-bg-hover: #fdf7fa;
  --field-bg-focus: #ffffff;

  /* Typography */
  --font-sans: "Noto Sans Thai", -apple-system, BlinkMacSystemFont,
               "Segoe UI", sans-serif;
  --font-thai: "Noto Sans Thai", -apple-system, BlinkMacSystemFont,
               "Segoe UI", sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 420ms;

  --radius: 14px;
  --radius-sm: 10px;
}

[data-theme="dark"] {
  --ink-900: #ffffff;
  --ink-800: #f2f2f2;
  --ink-700: #e0e0e0;
  --ink-500: #a8a8a8;
  --ink-400: #7a7a7a;
  --ink-300: #554652;
  --ink-200: #3d2f3a;
  --ink-100: #241820;
  --ink-50:  #140b11;

  --paper:   #0f0a12;
  --paper-2: #1a111d;
  --line:    rgba(251, 207, 232, 0.08);
  --line-2:  rgba(251, 207, 232, 0.16);

  --accent:     #ec4899;
  --accent-2:   #f472b6;
  --accent-glow: rgba(236, 72, 153, 0.18);
  --gold:       #ec4899;

  --brand-bg-1: #0f0a12;
  --brand-bg-2: #1a111d;
  --brand-text: #f5eef2;
  --brand-text-sub: rgba(232, 220, 228, 0.65);
  --brand-line: rgba(251, 207, 232, 0.12);
  --brand-grid: rgba(251, 207, 232, 0.05);

  --field-bg:       rgba(26, 17, 29, 0.65);
  --field-bg-hover: rgba(26, 17, 29, 0.88);
  --field-bg-focus: rgba(26, 17, 29, 0.92);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  color: var(--ink-900);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background 320ms var(--ease), color 320ms var(--ease);
}

:lang(th), html[lang="th"] { font-family: var(--font-thai); }

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ==========================================================================
   Layout — split 55/45
   ========================================================================== */

.auth {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  min-height: 100vh;
}

/* LEFT — Brand panel ------------------------------------------------------- */
.auth__brand {
  position: relative;
  background:
    radial-gradient(1200px 600px at 15% 10%, rgba(236, 72, 153, 0.18), transparent 60%),
    radial-gradient(900px 500px at 85% 90%, rgba(244, 114, 182, 0.12), transparent 55%),
    linear-gradient(180deg, var(--brand-bg-1) 0%, var(--brand-bg-2) 100%);
  color: var(--brand-text);
  overflow: hidden;
  isolation: isolate;
}

.auth__brand-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  padding: 48px 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.auth__brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--brand-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--brand-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  z-index: 1;
}

.brand__grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.7;
  pointer-events: none;
  mix-blend-mode: overlay;
  z-index: 3;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.02em;
}

.brand__mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #fbcfe8 0%, var(--accent) 100%);
  box-shadow: 0 0 0 1px rgba(236, 72, 153, 0.25), 0 0 18px var(--accent-glow),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.brand__name {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.brand__story { max-width: 520px; }

.eyebrow {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  margin: 0 0 20px;
}

.eyebrow--dark { color: var(--ink-500); }

.headline {
  font-family: var(--font-thai);
  font-size: clamp(34px, 3.6vw, 52px);
  line-height: 1.15;
  font-weight: 500;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.headline__accent {
  color: #fbcfe8;
  font-style: italic;
  font-weight: 400;
}

.subhead {
  color: var(--brand-text-sub);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
  max-width: 440px;
}

.brand__meta {
  display: flex;
  align-items: center;
  gap: 20px;
}

.meta-item { display: flex; align-items: baseline; gap: 10px; }

.meta-item__num {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.meta-item__label {
  font-size: 13px;
  color: var(--brand-text-sub);
  letter-spacing: 0.01em;
}

.meta-divider {
  flex: 1;
  height: 1px;
  background: var(--brand-line);
  max-width: 56px;
}

/* RIGHT — Form panel ------------------------------------------------------- */
.auth__form {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px 56px;
  background: var(--paper);
  position: relative;
}

.auth__form::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 400px at 50% 0%, var(--accent-glow), transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

[data-theme="dark"] .auth__form { background: var(--paper-2); }
[data-theme="dark"] .auth__form::before { opacity: 1; }

.form-wrap {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: auto 0;
  align-self: center;
}

.form-head { margin-bottom: 32px; }

.form-title {
  font-family: var(--font-thai);
  font-size: 32px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--ink-900);
}

.form-sub {
  font-size: 14px;
  color: var(--ink-500);
  margin: 0;
  line-height: 1.6;
}

/* Form fields -------------------------------------------------------------- */
.form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field { display: flex; flex-direction: column; gap: 8px; }

.field__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-700);
  letter-spacing: 0.005em;
}

.field__link {
  font-size: 12.5px;
  color: var(--accent);
  transition: color var(--dur) var(--ease);
}
.field__link:hover { color: #fbcfe8; }

.field__control {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--field-bg);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              background var(--dur) var(--ease);
}

.field__control:hover {
  border-color: rgba(131, 24, 67, 0.22);
  background: var(--field-bg-hover);
}

[data-theme="dark"] .field__control:hover { border-color: rgba(251, 207, 232, 0.26); }

.field__control:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
  background: var(--field-bg-focus);
}

.field__control input {
  flex: 1;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink-900);
  outline: none;
  letter-spacing: 0.005em;
}

.field__control input::placeholder {
  color: var(--ink-400);
  font-family: var(--font-thai);
}

[data-theme="dark"] .field__control input { color: var(--ink-900); }

.field__toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 100%;
  border: 0;
  background: transparent;
  color: var(--ink-400);
  transition: color var(--dur) var(--ease);
}
.field__toggle:hover { color: var(--accent); }

/* Checkbox ----------------------------------------------------------------- */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  padding: 4px 0;
}

.checkbox input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox__box {
  width: 16px; height: 16px;
  border-radius: 5px;
  border: 1px solid var(--line-2);
  background: var(--paper-2);
  display: inline-grid;
  place-items: center;
  transition: all var(--dur) var(--ease);
  position: relative;
}

[data-theme="dark"] .checkbox__box { background: rgba(26, 17, 29, 0.6); }

.checkbox__box::after {
  content: "";
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--accent);
  transform: scale(0);
  transition: transform var(--dur) var(--ease);
}

.checkbox input:checked + .checkbox__box {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.checkbox input:checked + .checkbox__box::after { transform: scale(1); }

.checkbox__label {
  font-size: 13.5px;
  color: var(--ink-500);
}

/* Buttons ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, #be185d 100%);
  color: #fff1f8;
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18) inset,
              0 10px 30px -10px rgba(236, 72, 153, 0.55),
              0 0 0 1px rgba(236, 72, 153, 0.32);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.22) inset,
              0 18px 36px -12px rgba(236, 72, 153, 0.7),
              0 0 0 1px rgba(236, 72, 153, 0.5);
}
.btn--primary:active { transform: translateY(0); }

.btn--primary svg {
  transition: transform var(--dur) var(--ease);
}
.btn--primary:hover svg { transform: translateX(3px); }

/* Foot --------------------------------------------------------------------- */
.form-foot {
  margin-top: 32px;
  font-size: 13px;
  color: var(--ink-500);
  text-align: center;
}

.sync-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  color: var(--ink-500);
  font-size: 12.5px;
  letter-spacing: 0.005em;
}

[data-theme="dark"] .sync-note { background: rgba(26, 17, 29, 0.6); }

.sync-note svg { color: var(--accent); flex-shrink: 0; }

.legal {
  font-size: 12px;
  color: var(--ink-400);
  text-align: center;
  margin: 0;
  letter-spacing: 0.01em;
  position: relative;
}
.legal a { color: var(--ink-500); }
.legal a:hover { color: var(--accent); }

/* Motion ------------------------------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.form-head, .form > *, .form-foot {
  animation: fadeUp 600ms var(--ease) both;
}
.form > *:nth-child(1) { animation-delay: 40ms; }
.form > *:nth-child(2) { animation-delay: 100ms; }
.form > *:nth-child(3) { animation-delay: 160ms; }
.form-foot { animation-delay: 220ms; }

/* Responsive --------------------------------------------------------------- */
@media (max-width: 960px) {
  .auth { grid-template-columns: 1fr; }
  .auth__brand { display: none; }
  .auth__form { padding: 40px 24px; min-height: 100vh; }
}

@media (max-width: 480px) {
  .auth__form { padding: 32px 20px; }
  .form-title { font-size: 26px; }
}

/* Theme FAB ---------------------------------------------------------------- */
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--paper-2);
  color: var(--ink-700);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 10px 30px -12px rgba(131, 24, 67, 0.25);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease),
              border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  z-index: 10;
}
.theme-fab:hover {
  transform: translateY(-2px);
  color: var(--accent);
  border-color: rgba(219, 39, 119, 0.3);
}

[data-theme="dark"] .theme-fab {
  background: rgba(26, 17, 29, 0.85);
  color: var(--ink-700);
  box-shadow: 0 12px 32px -10px rgba(0, 0, 0, 0.6);
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Company picker (login) -------------------------------------------------- */
.company-pick {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.company-pick__opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 12px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
  position: relative;
}
.company-pick__opt:hover {
  border-color: rgba(131, 24, 67, 0.22);
  background: var(--ink-50);
}
.company-pick__opt input { position: absolute; opacity: 0; pointer-events: none; }

.company-pick__opt.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.company-pick__logo {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: grid; place-items: center;
  background: var(--ink-100);
  color: var(--ink-700);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  flex-shrink: 0;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.company-pick__opt.is-active .company-pick__logo {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff1f8;
}

.company-pick__body {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
}
.company-pick__name {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.company-pick__sub {
  font-size: 10.5px;
  color: var(--ink-500);
  letter-spacing: 0.02em;
}

@media (max-width: 480px) {
  .company-pick { grid-template-columns: 1fr; }
}

/* Form error -------------------------------------------------------------- */
.form-error {
  margin: 0;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.10);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #ef4444;
  font-size: 13px;
  border-radius: var(--radius-sm);
}