/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:             #0b0b12;
  --surface:        #13131e;
  --surface-raised: #1a1a28;
  --border:         #252535;
  --border-subtle:  #1d1d2d;
  --text:           #e8e9f0;
  --text-secondary: #9192a8;
  --text-muted:     #55566a;
  --accent:         #2563eb;
  --accent-hover:   #1d4ed8;
  --accent-subtle:  rgba(37, 99, 235, .12);
  --success:        #10d98a;
  --success-bg:     rgba(16, 217, 138, .08);
  --success-border: rgba(16, 217, 138, .2);
  --warn:           #ffb454;
  --warn-bg:        rgba(255, 180, 84, .08);
  --warn-border:    rgba(255, 180, 84, .25);
  --error:          #f45c7a;
  --error-subtle:   rgba(244, 92, 122, .12);
  --radius:         8px;
  --radius-lg:      12px;
  --shadow:         0 1px 3px rgba(0,0,0,.45), 0 8px 24px rgba(0,0,0,.3);
  --font:           'Inter', system-ui, -apple-system, sans-serif;
}

body {
  font-family: var(--font);
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ─── App Layout ──────────────────────────────────────────── */
.app-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 18, .85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 30px;
  width: auto;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.01em;
}

.app-main {
  flex: 1;
  padding: 40px 24px 64px;
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
}

/* ─── Form Step Visibility ────────────────────────────────── */
.form-step         { display: none; }
.form-step.active  { display: block; }

/* ─── Card ────────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.card-header {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.015em;
  margin-bottom: 3px;
}

.card-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Field Groups ────────────────────────────────────────── */
.field-group {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border-subtle);
}
.field-group:last-of-type { border-bottom: none; }

.group-label {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}
.form-row:last-child { margin-bottom: 0; }

.form-group { flex: 1; min-width: 0; }
.form-group.full-width { flex: 1 1 100%; }

/* ─── Labels ──────────────────────────────────────────────── */
.form-group > label,
.form-group > div > label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: .01em;
}

.optional-tag {
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
  background: var(--surface-raised);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
  margin-left: 4px;
  text-transform: none;
  letter-spacing: 0;
}

/* ─── Inputs ──────────────────────────────────────────────── */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
select,
textarea {
  width: 100%;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 13.5px;
  padding: 9px 12px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239192a8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
  padding-right: 34px;
  cursor: pointer;
  text-overflow: ellipsis;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

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

textarea {
  resize: vertical;
  min-height: 88px;
  line-height: 1.6;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(.45) brightness(1.5);
  cursor: pointer;
  opacity: .7;
}

input:disabled {
  opacity: .5;
  cursor: not-allowed;
}

/* Hide number spinners */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
input[type="number"] { -moz-appearance: textfield; }

/* Validation error state */
.invalid-field {
  border-color: var(--error) !important;
  box-shadow: 0 0 0 3px var(--error-subtle) !important;
}

/* ─── Toggle Switch ───────────────────────────────────────── */
.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.toggle-switch {
  position: relative;
  display: inline-flex;
  width: 36px;
  height: 20px;
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  width: 36px;
  height: 20px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: background .2s, border-color .2s;
  position: relative;
}

.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: left .2s, background .2s;
}

.toggle-switch input:checked + .toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}

.toggle-switch input:checked + .toggle-track::after {
  left: 19px;
  background: #fff;
}

.toggle-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

/* ─── Disclaimer Box ──────────────────────────────────────── */
.disclaimer-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius);
}

.disclaimer-box .toggle-switch {
  margin-top: 2px;
}

.disclaimer-text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  display: block !important;
  margin-bottom: 0 !important;
  font-weight: 400 !important;
}

/* ─── Form Actions ────────────────────────────────────────── */
.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0;
}

.form-actions--right { justify-content: flex-end; }

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .15s, box-shadow .15s, transform .1s, opacity .15s;
  white-space: nowrap;
  outline: none;
  position: relative;
  overflow: hidden;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, .4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: none;
}

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

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-raised);
  color: var(--text);
  border-color: var(--text-muted);
}

.btn:disabled {
  opacity: .38;
  cursor: not-allowed;
}

/* ─── Submit loader ───────────────────────────────────────── */
.button-text { display: block; }

.loader {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, .25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}

.btn.loading .button-text { display: none; }
.btn.loading .loader       { display: block; }

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

/* ─── Thank You Page ──────────────────────────────────────── */
.thankyou-card {
  text-align: center;
  padding: 48px 32px;
}

.thankyou-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success);
}

.thankyou-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.015em;
  margin-bottom: 10px;
}

.thankyou-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto 12px;
}

.thankyou-text:last-child { margin-bottom: 0; }

/* ─── Flatpickr theming ───────────────────────────────────── */
.flatpickr-calendar {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow) !important;
  font-family: var(--font) !important;
  color: var(--text) !important;
}
.flatpickr-calendar.arrowTop:before,
.flatpickr-calendar.arrowTop:after,
.flatpickr-calendar.arrowBottom:before,
.flatpickr-calendar.arrowBottom:after {
  border-bottom-color: var(--border) !important;
  border-top-color: var(--border) !important;
}
.flatpickr-months,
.flatpickr-month {
  background: transparent !important;
  color: var(--text) !important;
}
.flatpickr-current-month,
.flatpickr-current-month .flatpickr-monthDropdown-months,
.flatpickr-current-month input.cur-year {
  color: var(--text) !important;
  font-weight: 600 !important;
}
.flatpickr-current-month .flatpickr-monthDropdown-months {
  background: var(--surface) !important;
}
.flatpickr-monthDropdown-month {
  background: var(--surface) !important;
  color: var(--text) !important;
}
.flatpickr-weekdays,
span.flatpickr-weekday {
  background: transparent !important;
  color: var(--text-muted) !important;
  font-weight: 600 !important;
}
.flatpickr-day {
  color: var(--text) !important;
  border-radius: var(--radius) !important;
  border-color: transparent !important;
}
.flatpickr-day:hover {
  background: var(--surface-raised) !important;
  border-color: var(--border) !important;
}
.flatpickr-day.today {
  border-color: var(--accent) !important;
  color: var(--accent) !important;
}
.flatpickr-day.selected,
.flatpickr-day.selected:hover {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
}
.flatpickr-day.flatpickr-disabled,
.flatpickr-day.flatpickr-disabled:hover,
.flatpickr-day.prevMonthDay,
.flatpickr-day.nextMonthDay {
  color: var(--text-muted) !important;
  opacity: .55;
}
.flatpickr-prev-month,
.flatpickr-next-month {
  color: var(--text-secondary) !important;
  fill: var(--text-secondary) !important;
}
.flatpickr-prev-month:hover,
.flatpickr-next-month:hover {
  color: var(--accent) !important;
  fill: var(--accent) !important;
}
.flatpickr-prev-month svg,
.flatpickr-next-month svg {
  fill: currentColor !important;
}
.numInputWrapper:hover {
  background: var(--surface-raised) !important;
}
.numInputWrapper span.arrowUp,
.numInputWrapper span.arrowDown {
  border-color: var(--border) !important;
}
.numInputWrapper span:after {
  border-top-color: var(--text-secondary) !important;
  border-bottom-color: var(--text-secondary) !important;
}

/* ─── Responsive ──────────────────────────────────────────── */
@media (max-width: 620px) {
  .app-header  { padding: 0 16px; }
  .app-main    { padding: 24px 16px 48px; }
  .card-header { padding: 20px 20px 16px; }
  .field-group { padding: 16px 20px; }
  .form-row    { flex-direction: column; gap: 12px; }
  .thankyou-card { padding: 36px 20px; }
}