/* ==========================================================================
   Matcha Lab 🍵 - Main CSS & Design System
   ========================================================================== */

:root {
  /* Brand Color Palette */
  --color-forest: #162E20;
  --color-primary: #2D5038;
  --color-matcha: #4A6B53;
  --color-matcha-light: #7E9F86;
  --color-matcha-pale: #D9E5DC;
  --color-cream: #FAF8F5;
  --color-cream-card: #FFFFFF;
  --color-oat: #EFECE6;
  --color-oat-dark: #DCD7CE;
  
  /* Accent Colors */
  --color-strawberry: #EFA8A8;
  --color-oat: #EAEFEA;
  --color-oat-dark: #D4DDD5;
  --color-strawberry: #F9EBEA;
  --color-strawberry-dark: #E27D7D;
  --color-gold: #F4D03F;

  /* Typography Colors */
  --text-title: #162E20;
  --text-main: #2D3748;
  --text-muted: #6B7C70;
  --text-light: #8FA893;
  --text-inverse: #FFFFFF;

  /* Borders & Shadows */
  --border-light: rgba(74, 107, 83, 0.14);
  --border-focus: rgba(45, 80, 56, 0.4);
  --shadow-sm: 0 2px 8px rgba(22, 46, 32, 0.04);
  --shadow-md: 0 8px 24px rgba(22, 46, 32, 0.08);
  --shadow-lg: 0 16px 40px rgba(22, 46, 32, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.6);
  --shadow-glow: 0 0 20px rgba(74, 107, 83, 0.25);
  --glass-blur: blur(14px);

  /* Layout & Transitions */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Fonts */
  --font-sans: 'Outfit', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-arabic: 'Readex Pro', 'Tajawal', 'Segoe UI', sans-serif;
}

/* ==================== Dark Theme ==================== */
[data-theme="dark"] {
  --color-forest: #F0F7F2;
  --color-primary: #52B774;
  --color-matcha: #68C28A;
  --color-matcha-light: #8ED4A8;
  --color-matcha-pale: #1C3325;
  --color-cream: #0B140F;
  --color-cream-card: #132219;
  --color-oat: #1A2E22;
  --color-oat-dark: #243D2F;
  
  --text-title: #FFFFFF;
  --text-main: #E8F2EC;
  --text-muted: #B4C7BB;
  --text-light: #8EA898;
  --text-inverse: #0B140F;
  
  --border-light: rgba(104, 194, 138, 0.22);
  --border-focus: rgba(82, 183, 116, 0.6);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);
  --glass-bg: rgba(16, 29, 21, 0.95);
  --glass-border: rgba(104, 194, 138, 0.25);
}

[data-theme="dark"] body {
  background-color: var(--color-cream);
  background-image: 
    radial-gradient(circle at 8% 12%, rgba(82, 183, 116, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 92% 88%, rgba(239, 168, 168, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(21, 34, 27, 0.6) 0%, transparent 70%);
}

/* ==================== RTL / Arabic Mode ==================== */
[dir="rtl"] {
  direction: rtl;
  text-align: right;
}

[dir="rtl"] .dropdown-menu {
  left: 0;
  right: auto;
}

[dir="rtl"] .modal-close {
  left: 1rem;
  right: auto !important;
}

[dir="rtl"] .chip-check {
  margin-left: 0;
  margin-right: auto;
}

[dir="rtl"] .nav-brand .brand-icon {
  transform-origin: right center;
}

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

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

body {
  font-family: var(--font-sans), var(--font-arabic);
  background-color: var(--color-cream);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 8% 12%, rgba(126, 159, 134, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 92% 88%, rgba(239, 168, 168, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(239, 236, 230, 0.4) 0%, transparent 70%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans), var(--font-arabic);
  color: var(--color-forest);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-content {
  flex: 1;
  padding-top: 5.5rem; /* Space for fixed navbar */
  padding-bottom: 3rem;
  min-height: calc(100vh - 160px);
}

/* SPA View Section Transitions */
.view-section {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.view-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  font-size: 0.95rem;
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px rgba(45, 80, 56, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-forest);
  box-shadow: 0 6px 20px rgba(22, 46, 32, 0.32);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-cream-card);
  color: var(--color-forest);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-oat);
  border-color: var(--color-matcha-light);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-matcha-pale);
  color: var(--color-forest);
}

.btn-accent:hover {
  background-color: var(--color-matcha-light);
  color: var(--text-inverse);
}

.btn-strawberry {
  background-color: var(--color-strawberry);
  color: #5C2222;
}

.btn-strawberry:hover {
  background-color: var(--color-strawberry-dark);
  color: #fff;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2.2rem;
  font-size: 1.05rem;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.badge-matcha {
  background-color: var(--color-matcha-pale);
  color: var(--color-forest);
}

.badge-strawberry {
  background-color: #FDE8E8;
  color: #992E2E;
}

.badge-oat {
  background-color: var(--color-oat);
  color: var(--color-forest);
}

.badge-popular {
  background: linear-gradient(135deg, #FFE8B8 0%, #FFD680 100%);
  color: #7A4E00;
}

.badge-iced {
  background-color: #E3F2FD;
  color: #1565C0;
}

.badge-hot {
  background-color: #FBE9E7;
  color: #D84315;
}

/* Cards Base */
.card {
  background: var(--color-cream-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(74, 107, 83, 0.25);
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-forest);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.form-label .required {
  color: #D32F2F;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background-color: #FFFFFF;
  color: var(--text-main);
  outline: none;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 107, 83, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-cream);
}

::-webkit-scrollbar-thumb {
  background: var(--color-matcha-light);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-matcha);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--color-forest);
  color: #fff;
  padding: 0.9rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideToast 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  border-left: 4px solid var(--color-matcha-light);
}

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

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

@keyframes slideToast {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Modal Overlay Base */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 36, 25, 0.65);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--color-cream-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-light);
  transform: scale(0.95) translateY(10px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 1.75rem;
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  background: var(--color-cream-card);
  z-index: 10;
}

.modal-close {
  background: var(--color-oat);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-matcha-pale);
  color: var(--color-forest);
  transform: rotate(90deg);
}

.modal-body {
  padding: 1.75rem;
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 3.5rem 1.5rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  margin-bottom: 0.5rem;
  color: var(--color-forest);
}

.empty-state p {
  max-width: 420px;
  margin: 0 auto 1.5rem auto;
  font-size: 0.95rem;
}

/* Responsive Grid Helper */
.grid-responsive {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.75rem;
}

/* ==================== High-Contrast Dark Mode Overrides ==================== */
[data-theme="dark"] .card,
[data-theme="dark"] .builder-controls-card,
[data-theme="dark"] .builder-cup-sticky,
[data-theme="dark"] .recipe-modal-card,
[data-theme="dark"] .modal-card,
[data-theme="dark"] .profile-card-header,
[data-theme="dark"] .search-filter-wrapper,
[data-theme="dark"] .recipe-action-bar,
[data-theme="dark"] .custom-blend-card,
[data-theme="dark"] .activity-feed-item,
[data-theme="dark"] .user-dropdown-menu,
[data-theme="dark"] .modal-header,
[data-theme="dark"] .hero-main-card,
[data-theme="dark"] .recipe-card {
  background: var(--color-cream-card) !important;
  color: var(--text-main) !important;
  border-color: var(--border-light) !important;
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .form-select,
[data-theme="dark"] .search-input {
  background: #182C20 !important;
  color: #F0F7F2 !important;
  border-color: #2F523B !important;
}

[data-theme="dark"] .form-input::placeholder,
[data-theme="dark"] .form-textarea::placeholder,
[data-theme="dark"] .search-input::placeholder {
  color: #7E9E8A !important;
}

[data-theme="dark"] .option-chip,
[data-theme="dark"] .pill-option,
[data-theme="dark"] .filter-chip,
[data-theme="dark"] .sub-tab-btn,
[data-theme="dark"] .btn-action-pill,
[data-theme="dark"] .ingredient-check-item,
[data-theme="dark"] .instruction-step-card,
[data-theme="dark"] .comment-item-card,
[data-theme="dark"] .category-card {
  background: #182C20 !important;
  color: #E2ECE5 !important;
  border-color: #2A4836 !important;
}

[data-theme="dark"] .option-chip.selected,
[data-theme="dark"] .pill-option.selected,
[data-theme="dark"] .filter-chip.active,
[data-theme="dark"] .sub-tab-btn.active {
  background: #2D5F3D !important;
  color: #FFFFFF !important;
  border-color: #52B774 !important;
}

[data-theme="dark"] .step-number-badge,
[data-theme="dark"] .instruction-step-number,
[data-theme="dark"] .ingredient-bullet {
  background: #2D5F3D !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .btn-secondary {
  background: #182C20 !important;
  color: #E2ECE5 !important;
  border-color: #2A4836 !important;
}

[data-theme="dark"] .btn-secondary:hover {
  background: #254231 !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .nav-links {
  background: rgba(18, 34, 24, 0.95) !important;
  border-color: rgba(94, 214, 140, 0.25) !important;
}

[data-theme="dark"] .nav-link,
[data-theme="dark"] .nav-link span {
  color: #D3E2D8 !important;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active,
[data-theme="dark"] .nav-link:hover span,
[data-theme="dark"] .nav-link.active span {
  color: #FFFFFF !important;
  background: #274733 !important;
}

[data-theme="dark"] .user-profile-btn,
[data-theme="dark"] .nav-control-btn {
  background: #162B1F !important;
  color: #FFFFFF !important;
  border-color: #2B4E38 !important;
}

/* Floating Badges on Hero */
[data-theme="dark"] .floating-badge {
  background: rgba(18, 34, 24, 0.95) !important;
  border: 1px solid #2D503B !important;
  color: #FFFFFF !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6) !important;
}

[data-theme="dark"] .floating-badge strong,
[data-theme="dark"] .floating-badge-title {
  color: #5ED68C !important;
}

[data-theme="dark"] .floating-badge div div,
[data-theme="dark"] .floating-badge-sub {
  color: #9EB5A6 !important;
}

/* Card Save Button */
[data-theme="dark"] .card-save-btn {
  background: rgba(18, 34, 24, 0.92) !important;
  color: #5ED68C !important;
  border: 1px solid #2D503B !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark"] .card-save-btn:hover {
  background: #274733 !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .card-save-btn.saved {
  background: #45B86D !important;
  color: #FFFFFF !important;
  border-color: #45B86D !important;
}

/* Builder Teaser Banner */
[data-theme="dark"] .builder-banner {
  background: linear-gradient(135deg, #0B1710 0%, #152B1E 100%) !important;
  border: 1px solid #244430 !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .banner-content h2 {
  color: #FFFFFF !important;
}

[data-theme="dark"] .banner-content p {
  color: #C2D8C9 !important;
}

[data-theme="dark"] .banner-feature-item {
  background: rgba(255, 255, 255, 0.08) !important;
  color: #E2ECE5 !important;
  border: 1px solid rgba(94, 214, 140, 0.2) !important;
}

[data-theme="dark"] .builder-banner .btn-primary {
  background: #45B86D !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 16px rgba(69, 184, 109, 0.35) !important;
}

[data-theme="dark"] .builder-banner .btn-primary:hover {
  background: #369959 !important;
  color: #FFFFFF !important;
}

/* Site Footer */
[data-theme="dark"] .site-footer {
  background: #08100B !important;
  color: #D3DDD6 !important;
  border-top: 1px solid #1A3425 !important;
}

[data-theme="dark"] .site-footer h3,
[data-theme="dark"] .site-footer h4,
[data-theme="dark"] .footer-title {
  color: #FFFFFF !important;
}

[data-theme="dark"] .footer-link {
  color: #9EB5A6 !important;
}

[data-theme="dark"] .footer-link:hover {
  color: #5ED68C !important;
}

[data-theme="dark"] .footer-bottom {
  border-color: #1A3425 !important;
  color: #73937E !important;
}

/* Typography & Headings in Dark Mode */
[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4, 
[data-theme="dark"] h5, 
[data-theme="dark"] h6,
[data-theme="dark"] .hero-title,
[data-theme="dark"] .card-title,
[data-theme="dark"] .recipe-card-title,
[data-theme="dark"] .preview-title,
[data-theme="dark"] .builder-step-title,
[data-theme="dark"] .section-title-wrap h2 {
  color: #FFFFFF !important;
}

[data-theme="dark"] .hero-description,
[data-theme="dark"] .card-desc,
[data-theme="dark"] .recipe-card-desc,
[data-theme="dark"] .builder-step-desc,
[data-theme="dark"] .section-title-wrap p,
[data-theme="dark"] .explore-title-wrap p {
  color: #9EB5A6 !important;
}

[data-theme="dark"] .hero-tag {
  background: #1A3425 !important;
  color: #5ED68C !important;
}