/* =====================================================
   QPPL Data Entry - Design System
   Based on UI/UX Pro Max SaaS Style
   ===================================================== */

/* Google Fonts Import - Vietnamese-friendly fonts */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* =====================================================
   CSS Variables - Design Tokens
   ===================================================== */
:root {
  /* Colors - SaaS Palette */
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-primary-light: #DBEAFE;
  --color-secondary: #3B82F6;
  --color-cta: #F97316;
  --color-cta-hover: #EA580C;

  --color-bg: #F8FAFC;
  --color-bg-card: #FFFFFF;
  --color-text: #1E293B;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-focus: #2563EB;

  /* Status Colors */
  --color-success: #10B981;
  --color-success-bg: #D1FAE5;
  --color-warning: #F59E0B;
  --color-warning-bg: #FEF3C7;
  --color-error: #EF4444;
  --color-error-bg: #FEE2E2;
  --color-info: #3B82F6;
  --color-info-bg: #DBEAFE;

  /* Typography - Vietnamese-friendly fonts */
  --font-heading: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --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-normal: 200ms ease;
  --transition-slow: 300ms ease;
}

/* =====================================================
   Base Styles
   ===================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 1.875rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.125rem;
}

/* =====================================================
   Layout
   ===================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.page-wrapper {
  padding: var(--space-xl) 0;
}

/* =====================================================
   Header
   ===================================================== */
.header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-xl);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.header-title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: white;
}

.header-title svg {
  width: 40px;
  height: 40px;
}

.header-title h1 {
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
}

.user-badge {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* =====================================================
   Card & Panel
   ===================================================== */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.card-glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

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

/* =====================================================
   Tabs
   ===================================================== */
.tabs {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.tab-btn.active {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.tab-btn svg {
  width: 20px;
  height: 20px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =====================================================
   Form Elements
   ===================================================== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

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

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-section {
  margin-bottom: var(--space-xl);
}

.form-section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary-light);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.form-section-title svg {
  width: 20px;
  height: 20px;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-text-light);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  background-size: 18px;
  padding-right: var(--space-2xl);
}

.form-helper {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* =====================================================
   Progress Slider
   ===================================================== */
.progress-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

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

.progress-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
}

.progress-slider {
  width: 100%;
  height: 8px;
  appearance: none;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.progress-slider::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast);
}

.progress-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.progress-bar-container {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn svg {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-cta {
  background: linear-gradient(135deg, var(--color-cta) 0%, #FB923C 100%);
  color: white;
}

.btn-cta:hover {
  background: linear-gradient(135deg, var(--color-cta-hover) 0%, var(--color-cta) 100%);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: var(--color-border);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* =====================================================
   Status Badges
   ===================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge-error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

/* =====================================================
   Document Select (for Check-in)
   ===================================================== */
.document-select-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.document-select-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.document-select-card.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.document-select-card .doc-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.document-select-card .doc-info {
  flex: 1;
}

.document-select-card .doc-name {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.document-select-card .doc-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* =====================================================
   Toast Notifications
   ===================================================== */
.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border-left: 4px solid;
  animation: slideIn var(--transition-slow);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-success {
  border-color: var(--color-success);
}

.toast-warning {
  border-color: var(--color-warning);
}

.toast-error {
  border-color: var(--color-error);
}

.toast-info {
  border-color: var(--color-info);
}

.toast-icon {
  width: 24px;
  height: 24px;
}

.toast-success .toast-icon {
  color: var(--color-success);
}

.toast-warning .toast-icon {
  color: var(--color-warning);
}

.toast-error .toast-icon {
  color: var(--color-error);
}

.toast-info .toast-icon {
  color: var(--color-info);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  font-size: 0.9375rem;
}

.toast-message {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.toast-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: var(--space-xs);
}

.toast-close:hover {
  color: var(--color-text);
}

/* =====================================================
   Loading States
   ===================================================== */
.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .tabs {
    flex-direction: column;
  }

  .tab-btn {
    justify-content: flex-start;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

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

/* =====================================================
   Utility Classes
   ===================================================== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-primary {
  color: var(--color-primary);
}

.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-error {
  color: var(--color-error);
}

.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.hidden {
  display: none !important;
}