/* ==========================================================================
   Keeper Design System
   Based on Micro Chat Design System
   ========================================================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  /* Font Sizes */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 30px;
  --text-4xl: 36px;

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Neutral Colors */
  --neutral-50: #fafafa;
  --neutral-100: #f5f5f5;
  --neutral-200: #e5e5e5;
  --neutral-300: #d4d4d4;
  --neutral-400: #a3a3a3;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #171717;

  /* Semantic Colors */
  --success-50: #f0fdf4;
  --success-100: #dcfce7;
  --success-500: #22c55e;
  --success-800: #166534;

  --warning-50: #fffbeb;
  --warning-100: #fef3c7;
  --warning-500: #f59e0b;
  --warning-800: #92400e;

  --error-50: #fef2f2;
  --error-100: #fee2e2;
  --error-200: #fecaca;
  --error-600: #dc2626;
  --error-800: #991b1b;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  line-height: 1.5;
  color: var(--neutral-900);
  background-color: var(--neutral-50);
  overflow-x: hidden;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background-color: white;
  border-bottom: 1px solid var(--neutral-200);
  padding: var(--space-4) var(--space-6);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 896px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.main {
  flex: 1;
  padding: var(--space-8) var(--space-6);
}

.container {
  max-width: 448px;
  margin: 0 auto;
}

.footer {
  padding: var(--space-6);
  text-align: center;
}

.footer-text {
  font-size: var(--text-xs);
  color: var(--neutral-500);
}

/* ==========================================================================
   Logo
   ========================================================================== */

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-icon {
  width: 24px;
  height: 24px;
  color: var(--neutral-900);
}

.logo-text {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--neutral-900);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  text-align: center;
  margin-bottom: var(--space-8);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--neutral-900);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: var(--text-base);
  color: var(--neutral-600);
  max-width: 380px;
  margin: 0 auto;
}

/* ==========================================================================
   Card
   ========================================================================== */

.card {
  background-color: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
}

/* ==========================================================================
   Form
   ========================================================================== */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 100%;
  overflow: hidden;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--neutral-700);
}

.label-hint {
  font-weight: var(--font-normal);
  color: var(--neutral-500);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--neutral-900);
  background-color: white;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  box-sizing: border-box;
  max-width: 100%;
}

.form-input::placeholder {
  color: var(--neutral-400);
}

.form-input:focus {
  outline: none;
  border: 2px solid var(--neutral-900);
}

.form-input:disabled {
  background-color: var(--neutral-100);
  cursor: not-allowed;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--neutral-500);
  margin-top: var(--space-1);
  display: block;
}

/* Date and time inputs - Custom Styled */
input[type="date"],
input[type="time"] {
  cursor: pointer;
  position: relative;
  background-color: white;
}

/* Hide default webkit calendar/time picker icon and add custom styling */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  background: transparent;
  color: transparent;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Custom icon overlay */
input[type="date"],
input[type="time"] {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px 16px;
  padding-right: 40px;
}

input[type="time"] {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'%3E%3C/circle%3E%3Cpolyline points='12 6 12 12 16 14'%3E%3C/polyline%3E%3C/svg%3E");
}

input[type="date"]:hover,
input[type="time"]:hover {
  border-color: var(--neutral-400);
}

input[type="date"]:focus,
input[type="time"]:focus {
  border: 2px solid var(--neutral-900);
}

/* Select dropdowns - Custom Styled */
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px 16px;
  padding-right: 40px;
  cursor: pointer;
}

select.form-input:hover {
  border-color: var(--neutral-400);
}

select.form-input:focus {
  border: 2px solid var(--neutral-900);
}

/* ==========================================================================
   Flatpickr Custom Theme
   ========================================================================== */

.flatpickr-calendar {
  font-family: var(--font-sans) !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12) !important;
  border: none !important;
  padding: 8px !important;
  background: white !important;
}

.flatpickr-calendar.arrowTop:before,
.flatpickr-calendar.arrowTop:after,
.flatpickr-calendar.arrowBottom:before,
.flatpickr-calendar.arrowBottom:after {
  display: none !important;
}

.flatpickr-months {
  padding: 4px 0 8px !important;
}

.flatpickr-months .flatpickr-month {
  height: 32px !important;
}

.flatpickr-current-month {
  font-size: var(--text-sm) !important;
  font-weight: var(--font-semibold) !important;
  padding: 0 !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
  font-size: var(--text-sm) !important;
  font-weight: var(--font-semibold) !important;
  appearance: none !important;
  -webkit-appearance: none !important;
}

.flatpickr-weekdays {
  height: 28px !important;
}

.flatpickr-weekday {
  font-size: 11px !important;
  font-weight: var(--font-medium) !important;
  color: var(--neutral-400) !important;
}

.flatpickr-day {
  font-size: var(--text-sm) !important;
  font-weight: var(--font-normal) !important;
  border-radius: var(--radius-md) !important;
  height: 32px !important;
  line-height: 32px !important;
  margin: 1px !important;
}

.flatpickr-day.selected,
.flatpickr-day.selected:hover {
  background: var(--neutral-900) !important;
  border-color: var(--neutral-900) !important;
  color: white !important;
}

.flatpickr-day:hover {
  background: var(--neutral-100) !important;
  border-color: transparent !important;
}

.flatpickr-day.today {
  border-color: var(--neutral-300) !important;
  background: var(--neutral-50) !important;
}

.flatpickr-day.today.selected {
  background: var(--neutral-900) !important;
}

/* Time picker styling */
.flatpickr-time {
  border: none !important;
  max-height: none !important;
  padding: 8px 0 !important;
}

.flatpickr-time input {
  font-family: var(--font-sans) !important;
  font-size: var(--text-base) !important;
  font-weight: var(--font-medium) !important;
}

.flatpickr-time .flatpickr-am-pm {
  font-family: var(--font-sans) !important;
  font-weight: var(--font-medium) !important;
  font-size: var(--text-sm) !important;
}

.numInputWrapper:hover {
  background: var(--neutral-50) !important;
}

.flatpickr-time .numInputWrapper span.arrowUp,
.flatpickr-time .numInputWrapper span.arrowDown {
  border: none !important;
}

/* Make inputs editable but also clickable */
.form-input.flatpickr-input {
  cursor: text;
  background-color: white;
}

.form-input.flatpickr-input + .form-input {
  cursor: pointer;
}

.form-input.flatpickr-input:hover,
.form-input.flatpickr-input + .form-input:hover {
  border-color: var(--neutral-400);
}

/* ==========================================================================
   Custom Time Picker Dropdown
   ========================================================================== */

.time-picker-wrapper {
  position: relative;
}

.time-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  max-height: 240px;
  overflow-y: auto;
  z-index: 1000;
  padding: 4px;
}

.time-dropdown.open {
  display: block;
}

.time-option {
  padding: 10px 12px;
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: var(--neutral-700);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background-color 0.1s ease;
}

.time-option:hover {
  background-color: var(--neutral-100);
}

.time-option.selected {
  background-color: var(--neutral-900);
  color: white;
  font-weight: var(--font-medium);
}

/* Smooth scrollbar for time dropdown */
.time-dropdown::-webkit-scrollbar {
  width: 6px;
}

.time-dropdown::-webkit-scrollbar-track {
  background: transparent;
}

.time-dropdown::-webkit-scrollbar-thumb {
  background-color: var(--neutral-300);
  border-radius: 3px;
}

.time-dropdown::-webkit-scrollbar-thumb:hover {
  background-color: var(--neutral-400);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  width: 100%;
  background-color: var(--neutral-900);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--neutral-800);
}

.btn-primary:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--neutral-50), 0 0 0 4px var(--neutral-900);
}

.btn-secondary {
  width: 100%;
  background-color: white;
  color: var(--neutral-700);
  border: 1px solid var(--neutral-300);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--neutral-50);
}

.btn-icon {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Success State
   ========================================================================== */

.success-state {
  text-align: center;
  padding: var(--space-4) 0;
}

.hidden {
  display: none !important;
}

.success-state.hidden {
  display: none;
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background-color: var(--success-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success-800);
}

.success-icon svg {
  width: 32px;
  height: 32px;
}

.success-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--neutral-900);
  margin-bottom: var(--space-2);
}

.success-message {
  font-size: var(--text-sm);
  color: var(--neutral-600);
  margin-bottom: var(--space-6);
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
  margin-top: var(--space-12);
}

.section-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--neutral-900);
  text-align: center;
  margin-bottom: var(--space-6);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--neutral-200);
}

.step-number {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--neutral-900);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--neutral-900);
  margin-bottom: var(--space-1);
}

.step-desc {
  font-size: var(--text-sm);
  color: var(--neutral-600);
}

/* ==========================================================================
   Loading State
   ========================================================================== */

.btn.loading .btn-text::after {
  content: '...';
  animation: dots 1.4s infinite;
}

@keyframes dots {

  0%,
  20% {
    content: '.';
  }

  40% {
    content: '..';
  }

  60%,
  100% {
    content: '...';
  }
}

/* ==========================================================================
   Error State
   ========================================================================== */

.form-error {
  font-size: var(--text-sm);
  color: var(--error-600);
  background-color: var(--error-50);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.form-input.error {
  border-color: var(--error-600);
}

.form-input.error:focus {
  box-shadow: 0 0 0 2px var(--error-600);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--text-2xl);
  }

  .hero-subtitle {
    font-size: var(--text-sm);
  }

  .card {
    padding: var(--space-6);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}