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

/* Default Dark Theme Variables */
:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: rgba(51, 65, 85, 0.8);
  --header-bg: rgba(15, 23, 42, 0.85);
  --border-color: rgba(255, 255, 255, 0.12);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --input-bg: rgba(15, 23, 42, 0.7);
  --table-header-bg: rgba(15, 23, 42, 0.6);
  --modal-bg: #1e293b;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --border-radius: 16px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(241, 245, 249, 0.95);
  --header-bg: rgba(255, 255, 255, 0.9);
  --border-color: rgba(203, 213, 225, 0.8);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --input-bg: #ffffff;
  --table-header-bg: #f1f5f9;
  --modal-bg: #ffffff;
  --glass-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', 'Sarabun', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.12) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  padding-bottom: 50px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* App Header */
header {
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 32px;
  transition: background-color 0.3s ease;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.logo-title h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.logo-title p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme & Language Controls */
.control-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

[data-theme="light"] .control-btn {
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.control-btn:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--primary);
}

.lang-switch {
  display: flex;
  background: rgba(0, 0, 0, 0.1);
  padding: 3px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 5px 10px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 6px;
  background: rgba(0, 0, 0, 0.1);
  padding: 4px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
}

.nav-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.nav-tab.active {
  background: linear-gradient(135deg, var(--primary), #4338ca);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* Main Container */
main {
  max-width: 1280px;
  margin: 32px auto;
  padding: 0 24px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.section-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.section-title h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
}

.section-title p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4338ca);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

[data-theme="light"] .btn-secondary {
  background: #f1f5f9;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.25);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: 8px;
}

/* Cards & Grid Layouts */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--glass-shadow);
  margin-bottom: 24px;
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: var(--table-header-bg);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(99, 102, 241, 0.03);
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 500;
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-rose {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Food Grid */
.food-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.food-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.food-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: var(--glass-shadow);
}

.food-image {
  width: 100%;
  height: 190px;
  object-fit: cover;
  background: rgba(0, 0, 0, 0.1);
}

.food-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.food-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.food-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
}

.food-description {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.food-ingredients-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--modal-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  width: 90%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--glass-shadow);
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-main);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
}

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

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
}

.form-control {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

textarea.form-control {
  min-height: 90px;
  resize: vertical;
}

select.form-control {
  cursor: pointer;
}

/* Multi-select allergen modal checklist */
.allergen-checklist {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  max-height: 250px;
  overflow-y: auto;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--input-bg);
}

.allergen-check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: var(--transition);
}

.allergen-check-item:hover {
  background: rgba(99, 102, 241, 0.1);
}

.allergen-check-item input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Dynamic Food Ingredient Selection List */
.food-ing-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  gap: 12px;
}

.food-ing-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.food-ing-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
}

.food-ing-toggle input[type="checkbox"] {
  accent-color: var(--accent-amber);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: 12px;
  color: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast-success {
  background: rgba(16, 185, 129, 0.95);
}

.toast-error {
  background: rgba(244, 63, 94, 0.95);
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================================================ */
/* AUTHENTICATION OVERLAY & MODAL STYLES */
/* ============================================================================ */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 3000;
  padding: 20px;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.auth-overlay.hidden {
  display: none;
  opacity: 0;
  pointer-events: none;
}

.auth-card {
  background-color: var(--modal-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  animation: authModalPop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authModalPop {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.auth-tabs {
  display: flex;
  background-color: rgba(15, 23, 42, 0.3);
  border-bottom: 1px solid var(--border-color);
  padding: 6px 6px 0 6px;
}

.auth-tab {
  flex: 1;
  padding: 14px 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.auth-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background-color: rgba(99, 102, 241, 0.08);
  border-radius: 12px 12px 0 0;
}

.auth-tab:hover:not(.active) {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.04);
}

.auth-form-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-header-text {
  text-align: center;
  margin-bottom: 8px;
}

.auth-header-text h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.auth-header-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.otp-icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px auto;
}

.auth-alert {
  margin: 16px 24px 0 24px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.4;
}

.auth-alert.error {
  background-color: rgba(244, 63, 94, 0.15);
  border: 1px solid rgba(244, 63, 94, 0.4);
  color: #fca5a5;
}

.auth-alert.success {
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #6ee7b7;
}

.auth-alert.info {
  background-color: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: #a5b4fc;
}

.domain-feedback {
  font-size: 0.78rem;
  margin-top: 6px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.domain-feedback.valid {
  color: var(--accent-emerald);
}

.domain-feedback.invalid {
  color: var(--accent-rose);
}

.otp-input {
  font-size: 1.6rem !important;
  letter-spacing: 12px !important;
  text-align: center !important;
  font-weight: 700 !important;
  padding: 12px !important;
}

.resend-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  font-size: 0.85rem;
  padding: 0;
}

.btn-link:hover {
  color: var(--primary-hover);
}

.auth-form-footer {
  padding: 16px 24px 24px 24px;
  display: flex;
  gap: 12px;
}

.auth-submit-btn {
  width: 100%;
  padding: 12px;
  font-weight: 600;
  justify-content: center;
}

/* User Badge Header Styles */
.user-badge-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.user-chip i {
  color: var(--primary);
}

.logout-btn {
  color: var(--accent-rose);
}

.logout-btn:hover {
  background-color: rgba(244, 63, 94, 0.15);
}