/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Dark Theme Tokens (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #161c2d;
  --bg-tertiary: #1f273d;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: #2e3b56;
  --primary-color: #00a2e8;
  --primary-hover: #0082ba;
  --accent-color: #10b981;
  --accent-hover: #059669;
  --danger-color: #ef4444;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --warning-border: rgba(245, 158, 11, 0.4);
  --warning-text: #f59e0b;

  --row-highlight: rgba(0, 162, 232, 0.08);
  --col-highlight: rgba(0, 162, 232, 0.05);
  --cell-highlight: rgba(16, 185, 129, 0.2);
  --cell-highlight-border: #10b981;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body.light-theme {
  /* Light Theme Tokens */
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #b45309;

  --row-highlight: rgba(0, 162, 232, 0.06);
  --col-highlight: rgba(0, 162, 232, 0.03);
  --cell-highlight: rgba(16, 185, 129, 0.15);
  --cell-highlight-border: #10b981;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  transition: background-color 0.3s, color 0.3s;
  overflow-x: hidden;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-15px); }
}
@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(0, 162, 232, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(0, 162, 232, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 162, 232, 0); }
}

.fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}
.fade-out {
  animation: fadeOut 0.3s ease-out forwards;
}
.hidden {
  display: none !important;
}

/* Login Screen (Glassmorphism) */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 10% 20%, rgba(0, 162, 232, 0.15) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 40%),
              var(--bg-primary);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(22, 28, 45, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 30px;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

body.light-theme .login-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-color), #00c6ff);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 24px;
  box-shadow: 0 4px 15px rgba(0, 162, 232, 0.4);
}

.logo-text-brand {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: 0.5px;
}

.login-card h2 {
  font-size: 22px;
  margin-bottom: 8px;
  font-weight: 700;
}

.login-card p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 25px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
}

.form-group input, .form-group select {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 10px;
  padding: 12px 14px 12px 42px;
  font-size: 15px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group select {
  padding-left: 14px; /* Select dropdowns don't need icons */
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

body.light-theme .form-group input, body.light-theme .form-group select {
  background-color: #f8fafc;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 162, 232, 0.15);
}

.btn-toggle-password {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
}

.btn-toggle-password:hover {
  color: var(--text-primary);
}

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

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--primary-color), #00c6ff);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 162, 232, 0.3);
  transition: transform 0.1s, filter 0.2s;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-primary:active {
  transform: scale(0.98);
}

.error-message {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger-color);
  border-radius: 10px;
  padding: 10px 15px;
  font-size: 14px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Main App Layout */
#main-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.btn-icon {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

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

.btn-logout {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger-color);
}

.btn-logout:hover {
  background-color: var(--danger-color);
  color: white;
}

/* Tab Menu */
.tabs-container {
  overflow-x: auto;
  white-space: nowrap;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 30px;
  display: flex;
  gap: 10px;
}

.service-tab {
  background: none;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-tab:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.service-tab.active {
  color: white;
  background: var(--primary-color);
  box-shadow: 0 4px 10px rgba(0, 162, 232, 0.2);
}

/* Main Container */
main {
  flex: 1;
  padding: 30px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.grid-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  margin-bottom: 40px;
}

@media (max-width: 1024px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
}

/* Cards styling */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.card-header {
  padding: 20px 25px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-header h2 {
  font-size: 18px;
  font-weight: 700;
}

.card-icon {
  color: var(--primary-color);
}

.card-body {
  padding: 25px;
}

/* Form inputs styling */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-panel .form-group {
  margin-bottom: 0;
}

.form-group-full {
  grid-column: 1 / -1;
}

/* Result Card */
.result-card {
  background: radial-gradient(circle at 100% 0%, rgba(0, 162, 232, 0.05) 0%, transparent 45%),
              var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.price-summary-box {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
  text-align: center;
}

.price-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-bottom: 5px;
}

.price-value-unit {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.price-value-total {
  font-size: 36px;
  font-weight: 800;
  color: var(--accent-color);
}

.divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 15px 0;
}

.quote-details-container {
  flex: 1;
}

.quote-detail-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
}

.quote-detail-item strong {
  color: var(--text-secondary);
  font-weight: 500;
}

.quote-detail-item span {
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.badge.bg-green {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-color);
}

.info-box {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 15px;
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-top: 15px;
}

.warning-box {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
  border-radius: 10px;
  padding: 12px;
  font-size: 13px;
  margin-top: 15px;
  font-weight: 500;
}

.btn-accent {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-color), #34d399);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  transition: transform 0.1s, filter 0.2s;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: auto;
}

.btn-accent:hover {
  filter: brightness(1.08);
}
.btn-accent:active {
  transform: scale(0.98);
}
.btn-accent:disabled {
  background: var(--border-color);
  color: var(--text-secondary);
  cursor: not-allowed;
  box-shadow: none;
}

/* Text manipulation */
.text-green {
  color: var(--accent-color) !important;
}

/* Pricing Tables Styles */
.tables-section-header {
  margin-bottom: 20px;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-table-wrapper {
  animation: fadeIn 0.3s ease-out forwards;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 14px;
}

th, td {
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  transition: background-color 0.2s, color 0.2s;
}

thead {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 700;
}

thead tr:first-child th {
  background: var(--primary-color);
  color: white;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr:nth-child(even) {
  background-color: rgba(22, 28, 45, 0.2);
}

body.light-theme tbody tr:nth-child(even) {
  background-color: rgba(241, 245, 249, 0.5);
}

/* Highlighting styles */
.row-highlight {
  background-color: var(--row-highlight) !important;
  font-weight: 500;
}

.col-highlight {
  background-color: var(--col-highlight) !important;
}

.cell-highlight {
  background-color: var(--cell-highlight) !important;
  color: var(--accent-color) !important;
  font-weight: 700;
  border: 2px solid var(--cell-highlight-border) !important;
  position: relative;
  transform: scale(1.02);
  z-index: 2;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.cell-sl {
  font-weight: 700;
  background-color: var(--bg-tertiary);
}

/* Footnotes */
.table-footnote {
  font-size: 13px;
  color: var(--primary-color);
  font-weight: 700;
  text-align: center;
  padding: 12px;
  background-color: rgba(0, 162, 232, 0.08);
  border-top: 1px solid var(--border-color);
  text-transform: uppercase;
}

/* Utilities */
.text-center {
  text-align: center !important;
}
.mt-4 {
  margin-top: 1.5rem !important;
}

/* Mobile Floating Bar */
.mobile-floating-bar {
  display: none; /* Hidden on desktop */
}

@media (max-width: 1024px) {
  body {
    padding-bottom: 80px; /* Thừa khoảng trống để thanh bar không đè lên nội dung */
  }

  .mobile-floating-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(22, 28, 45, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-top: 1px solid var(--border-color);
    padding: 12px 20px;
    justify-content: space-between;
    align-items: center;
    z-index: 999;
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease-out forwards;
  }

  body.light-theme .mobile-floating-bar {
    background: rgba(255, 255, 255, 0.85);
    border-top: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.05);
  }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.floating-price-info {
  display: flex;
  flex-direction: column;
}

.floating-price-unit {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1.2;
}

.floating-price-total {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.btn-copy-float {
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.2);
  transition: background-color 0.2s, transform 0.1s;
  font-family: inherit;
}

.btn-copy-float:hover {
  background: var(--accent-hover);
}

.btn-copy-float:active {
  transform: scale(0.95);
}