/* =========================================================================
   Bodhua Bazar — Pre-Registration · Stylesheet
   Mobile-first. Tokens follow docs/03_design/tokens.md.
   No emoji, no exclamation marks. Bangla-first.
   ========================================================================= */

:root {
  /* Color — base */
  --bb-paper:        #F7F2E8;
  --bb-paper-2:      #FBF7ED;
  --bb-paper-3:      #FFFBF0;
  --bb-ink:          #1A1915;
  --bb-ink-2:        #403E36;
  --bb-ink-3:        #6B6759;
  --bb-line:         #E6DFCE;
  --bb-line-2:       #D6CEB7;

  --bb-green-50:     #E4F6EC;
  --bb-green-100:    #BEE8CF;
  --bb-green-500:    #1DBE77;
  --bb-green-600:    #12A866;
  --bb-green-700:    #0B7A4A;
  --bb-green-800:    #084E30;
  --bb-green-900:    #063C24;

  --bb-turmeric-50:  #FFF3D6;
  --bb-turmeric-100: #FFE3A1;
  --bb-turmeric-300: #FAC65A;
  --bb-turmeric-500: #F5A623;
  --bb-turmeric-700: #A66500;

  --bb-clay-50:      #FDE6DD;
  --bb-clay-600:     #E04E1F;
  --bb-clay-800:     #9A2F0E;

  --bb-jute-100:     #EDE2C5;
  --bb-jute-700:     #6E5A33;

  /* Semantic */
  --bg:              var(--bb-paper);
  --bg-surface:      var(--bb-paper-2);
  --bg-raised:       var(--bb-paper-3);
  --fg:              var(--bb-ink);
  --fg-muted:        var(--bb-ink-2);
  --fg-subtle:       var(--bb-ink-3);
  --border:          var(--bb-line);
  --border-strong:   var(--bb-line-2);
  --primary:         var(--bb-green-700);
  --primary-hover:   var(--bb-green-600);
  --primary-pressed: var(--bb-green-800);
  --primary-soft:    var(--bb-green-50);
  --accent:          var(--bb-turmeric-500);
  --accent-soft:     var(--bb-turmeric-50);
  --danger:          var(--bb-clay-600);
  --danger-soft:     var(--bb-clay-50);
  --success:         var(--bb-green-500);
  --focus-ring:      var(--bb-green-500);

  /* Typography */
  --font-bangla: 'Hind Siliguri', 'Noto Sans Bengali', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Sizing */
  --r-sm:   8px;
  --r-md:   12px;
  --r-lg:   18px;
  --r-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(60, 50, 30, 0.06);
  --shadow-md: 0 6px 16px rgba(60, 50, 30, 0.08), 0 1px 2px rgba(60, 50, 30, 0.04);
  --shadow-lg: 0 14px 40px rgba(60, 50, 30, 0.12), 0 2px 6px rgba(60, 50, 30, 0.06);

  /* Tap target */
  --tap: 48px;
}

/* =========================================================================
   Reset
   ========================================================================= */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: var(--font-bangla);
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;

  /* Decorative warm radial wash */
  background-image:
    radial-gradient(circle at 0% -10%, rgba(245, 166, 35, 0.10), transparent 45%),
    radial-gradient(circle at 100% 110%, rgba(11, 122, 74, 0.08), transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(247, 242, 232, 0) 0, var(--bg) 100%);
  background-attachment: fixed;
}

/* Subtle jute weave background pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.4;
  background-image:
    repeating-linear-gradient(45deg,
      rgba(110, 90, 51, 0.025) 0,
      rgba(110, 90, 51, 0.025) 1px,
      transparent 1px,
      transparent 7px);
}

/* =========================================================================
   Layout — mobile first
   ========================================================================= */
.page {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 14px calc(32px + env(safe-area-inset-bottom, 0px));
}

/* =========================================================================
   Brand header
   ========================================================================= */
.brand {
  text-align: center;
  margin: 6px 0 18px;
}
.brand__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: var(--primary);
  box-shadow:
    0 8px 22px rgba(11, 122, 74, 0.28),
    0 1px 0 rgba(255, 255, 255, 0.15) inset;
  position: relative;
  overflow: hidden;
}
.brand__logo svg {
  width: 100%;
  height: 100%;
  display: block;
}
.brand__name {
  margin: 12px 0 4px;
  font-size: 26px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.4px;
  line-height: 1.15;
}
.brand__tag {
  margin: 0;
  font-size: 13px;
  color: var(--fg-subtle);
  font-weight: 500;
}

/* =========================================================================
   Card
   ========================================================================= */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  position: relative;
}

/* Decorative turmeric line accent at top of card */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--bb-turmeric-500) 0%,
    var(--bb-turmeric-300) 50%,
    var(--bb-turmeric-500) 100%
  );
  opacity: 0.85;
}

.card__head {
  background: var(--primary);
  color: var(--bb-paper);
  padding: 18px 18px 16px;
  position: relative;
  overflow: hidden;
}
/* Subtle decorative dots */
.card__head::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(245, 166, 35, 0.15) 1.5px, transparent 2px),
    radial-gradient(circle at 80% 30%, rgba(245, 166, 35, 0.10) 1.2px, transparent 2px);
  background-size: 30px 30px, 40px 40px;
  pointer-events: none;
}
.card__title {
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 700;
  position: relative;
  z-index: 1;
}
.card__subtitle {
  margin: 0;
  font-size: 13px;
  opacity: 0.92;
  position: relative;
  z-index: 1;
}

.card__body {
  padding: 18px 16px 22px;
}

/* =========================================================================
   Notice (district lock)
   ========================================================================= */
.notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--primary-soft);
  border: 1px solid var(--bb-green-100);
  border-radius: var(--r-md);
  margin-bottom: 20px;
  font-size: 13.5px;
  color: var(--bb-green-900);
  line-height: 1.5;
}
.notice__icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  color: var(--primary);
}

/* =========================================================================
   Form
   ========================================================================= */
.form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.label {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 4px;
}
.label .req { color: var(--danger); }
.label .opt {
  color: var(--fg-subtle);
  font-weight: 400;
  font-size: 12px;
}

.hint {
  font-size: 12px;
  color: var(--fg-subtle);
  line-height: 1.4;
}
.error-text {
  font-size: 12px;
  color: var(--danger);
  font-weight: 500;
  min-height: 16px;
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: var(--tap);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 16px;        /* iOS no-zoom */
  color: var(--fg);
  background: var(--bg-raised);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-md);
  transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
  -webkit-appearance: none;
  appearance: none;
}
.textarea {
  resize: vertical;
  min-height: 88px;
  line-height: 1.5;
}

.input::placeholder,
.textarea::placeholder { color: var(--fg-subtle); opacity: 0.7; }

.input:hover,
.select:hover,
.textarea:hover { border-color: var(--bb-jute-700); }

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-raised);
  box-shadow: 0 0 0 4px rgba(29, 190, 119, 0.20);
}

.input:disabled,
.select:disabled {
  background: var(--bg-surface);
  color: var(--fg-muted);
  cursor: not-allowed;
  opacity: 0.7;
}

.input--error,
.select--error,
.textarea--error {
  border-color: var(--danger);
  background: rgba(253, 230, 221, 0.4);
}
.input--error:focus,
.select--error:focus,
.textarea--error:focus {
  box-shadow: 0 0 0 4px rgba(224, 78, 31, 0.18);
}

.select-wrap { position: relative; }
.select {
  padding-right: 38px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--fg-subtle) 50%),
    linear-gradient(-45deg, transparent 50%, var(--fg-subtle) 50%);
  background-position:
    calc(100% - 18px) 22px,
    calc(100% - 12px) 22px;
  background-size: 6px 6px;
  background-repeat: no-repeat;
}

.locked-display {
  min-height: var(--tap);
  padding: 12px 14px;
  background: var(--bb-jute-100);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-md);
  font-weight: 600;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
}
.locked-display .lock-icon {
  width: 14px;
  height: 14px;
  color: var(--bb-jute-700);
  flex-shrink: 0;
}

/* =========================================================================
   Submit
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 54px;
  padding: 14px 20px;
  font-family: inherit;
  font-size: 17px;
  font-weight: 700;
  color: var(--bb-paper);
  background: var(--primary);
  border: none;
  border-radius: var(--r-md);
  cursor: pointer;
  box-shadow:
    0 6px 16px rgba(11, 122, 74, 0.30),
    0 1px 0 rgba(255, 255, 255, 0.15) inset;
  transition: background 140ms ease, transform 80ms ease, box-shadow 140ms ease;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: 0.2px;
}
.btn:hover:not(:disabled) {
  background: var(--primary-hover);
}
.btn:active:not(:disabled) {
  background: var(--primary-pressed);
  transform: translateY(1px);
  box-shadow: 0 2px 6px rgba(11, 122, 74, 0.28);
}
.btn:focus-visible {
  outline: none;
  box-shadow:
    0 6px 16px rgba(11, 122, 74, 0.30),
    0 0 0 4px rgba(29, 190, 119, 0.30);
}
.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
}

/* =========================================================================
   Spinner
   ========================================================================= */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(247, 242, 232, 0.4);
  border-top-color: var(--bb-paper);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* =========================================================================
   Alerts
   ========================================================================= */
.alert {
  padding: 13px 14px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-size: 14.5px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.5;
}
.alert--success {
  background: var(--primary-soft);
  border-color: var(--bb-green-100);
  color: var(--bb-green-900);
}
.alert--error {
  background: var(--danger-soft);
  border-color: rgba(224, 78, 31, 0.25);
  color: var(--bb-clay-800);
}
.alert__icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
}
.alert__title {
  font-weight: 700;
  margin: 0 0 2px;
  font-size: 15px;
}
.alert__body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
}

.is-hidden { display: none; }

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  margin-top: 22px;
  padding: 12px 4px;
  text-align: center;
  font-size: 12px;
  color: var(--fg-subtle);
  line-height: 1.5;
}
.footer a { color: var(--primary); text-decoration: none; font-weight: 500; }
.footer a:hover { text-decoration: underline; }

/* =========================================================================
   Responsive — tablet up
   ========================================================================= */
@media (min-width: 540px) {
  .page { padding: 28px 24px 56px; }

  .brand { margin: 12px 0 24px; }
  .brand__logo { width: 76px; height: 76px; border-radius: 20px; }
  .brand__name { margin-top: 14px; font-size: 30px; }
  .brand__tag { font-size: 14px; }

  .card__head { padding: 22px 24px 20px; }
  .card__title { font-size: 22px; }
  .card__subtitle { font-size: 14px; }
  .card__body { padding: 24px; }

  .row--two {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .form { gap: 16px; }

  .notice { font-size: 14px; padding: 13px 16px; }
  .alert { font-size: 15px; padding: 14px 16px; }
}

@media (min-width: 768px) {
  .page { padding: 36px 28px 64px; }
  .card__body { padding: 28px; }
  .brand__name { font-size: 32px; }
}

/* =========================================================================
   Tiny phones — extra-tight
   ========================================================================= */
@media (max-width: 360px) {
  .page { padding: 12px 10px 28px; }
  .card__head { padding: 14px 14px 12px; }
  .card__title { font-size: 18px; }
  .card__subtitle { font-size: 12.5px; }
  .card__body { padding: 14px 12px 18px; }
  .brand__name { font-size: 22px; }
  .brand__logo { width: 56px; height: 56px; border-radius: 14px; }
}

/* =========================================================================
   Reduced motion
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}