/* ═══════════════════════════════════════════════════════════
   VocaPath - Professional Vocabulary Learning Platform
   Main Stylesheet
   ══════════════════════════════════════════════════════════ */

/* ═══ RESET & BASE ═══ */
*, *::before, *::after { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}

/* ═══ CSS VARIABLES - LIGHT MODE ═══ */
:root {
  /* Brand Colors - Light Mode */
  --primary: #1F4E79;
  --primary-hover: #163a5c;
  --accent: #F4A261;
  --accent-hover: #e89050;
  
  /* Backgrounds */
  --bg: #F8FAFC;
  --bg2: #F1F5F9;
  --surface: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.85);
  
  /* Borders */
  --border: #E5E7EB;
  --border2: #D1D5DB;
  
  /* Text Colors */
  --text: #1E293B;
  --text2: #475569;
  --text3: #94A3B8;
  
  /* CEFR Level Colors */
  --a1: #16a34a; --a1-l: #dcfce7;
  --a2: #0891b2; --a2-l: #cffafe;
  --b1: #7c3aed; --b1-l: #ede9fe;
  --b2: #d97706; --b2-l: #fef3c7;
  --c1: #dc2626; --c1-l: #fee2e2;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.11), 0 6px 16px rgba(0,0,0,0.05);
  
  /* Border Radius */
  --radius: 14px;
  --radius-sm: 8px;
  --pill: 40px;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══ DARK MODE VARIABLES ═══ */
body.dark-mode {
  --primary: #60A5FA;
  --primary-hover: #3b82f6;
  --accent: #F4A261;
  --accent-hover: #e89050;
  
  --bg: #0F172A;
  --bg2: #1E293B;
  --surface: #1E293B;
  --glass: rgba(30, 41, 59, 0.85);
  
  --border: #334155;
  --border2: #475569;
  
  --text: #E2E8F0;
  --text2: #CBD5E1;
  --text3: #64748B;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4), 0 2px 6px rgba(0,0,0,0.2);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5), 0 6px 16px rgba(0,0,0,0.3);
}

/* ═══ BASE STYLES ═══ */
html { 
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body { 
  font-family: 'Cairo', sans-serif; 
  background: var(--bg); 
  color: var(--text); 
  min-height: 100vh; 
  display: flex; 
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 6px;
  border: 3px solid var(--bg);
}

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

/* ═══ HEADER ═══ */
header {
  background: var(--glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  position: sticky; 
  top: 0; 
  z-index: 200;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-inner {
  max-width: 1280px; 
  margin: 0 auto; 
  padding: 0 32px;
  height: 68px; 
  display: flex; 
  align-items: center; 
  gap: 28px;
}

.logo { 
  display: flex; 
  align-items: center; 
  gap: 11px; 
  text-decoration: none; 
  flex-shrink: 0; 
}

.logo img {
  height: 42px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name { 
  font-family: 'Lora', serif; 
  font-size: 16px; 
  font-weight: 700; 
  color: var(--primary); 
  line-height: 1.1; 
}

.logo-sub { 
  font-size: 9px; 
  color: var(--text3); 
  text-transform: uppercase; 
  letter-spacing: 1.5px; 
}

nav { 
  display: flex; 
  align-items: center; 
  gap: 2px; 
  flex: 1; 
}

.nav-link {
  padding: 7px 13px; 
  border-radius: var(--radius-sm);
  text-decoration: none; 
  font-size: 13.5px; 
  font-weight: 600;
  color: var(--text2); 
  transition: var(--transition); 
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active { 
  background: var(--bg2); 
  color: var(--primary); 
}

/* Dark Mode Toggle */
.dark-mode-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.dark-mode-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--bg2);
  transform: scale(1.05);
}

.btn-dl {
  margin-left: auto; 
  flex-shrink: 0;
  display: flex; 
  align-items: center; 
  gap: 7px;
  padding: 9px 18px; 
  background: var(--primary); 
  color: #fff;
  border-radius: var(--pill); 
  font-size: 13px; 
  font-weight: 700;
  text-decoration: none; 
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(31, 78, 121, 0.3); 
  white-space: nowrap;
  border: none;
  cursor: pointer;
  position: relative;
}

.btn-dl:hover { 
  background: var(--accent); 
  transform: translateY(-1px); 
  box-shadow: 0 4px 14px rgba(244, 162, 97, 0.4); 
}

/* Tooltip for Download Button */
.btn-dl[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--text);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 400;
  white-space: normal;
  width: 280px;
  text-align: left;
  opacity: 0;
  pointer-events: none;
  transform: translateY(5px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  line-height: 1.5;
}

.btn-dl[data-tooltip]::before {
  content: '';
  position: absolute;
  top: calc(100% + 2px);
  right: 20px;
  border: 8px solid transparent;
  border-bottom-color: var(--text);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

.btn-dl:hover[data-tooltip]::after,
.btn-dl:hover[data-tooltip]::before {
  opacity: 1;
  transform: translateY(0);
}

.hamburger { 
  display: none; 
  flex-direction: column; 
  gap: 5px; 
  cursor: pointer; 
  padding: 4px; 
  background: none; 
  border: none; 
  margin-left: auto; 
}

.hamburger span { 
  display: block; 
  width: 22px; 
  height: 2px; 
  background: var(--text); 
  border-radius: 2px; 
  transition: var(--transition); 
}

/* ═══ HERO SECTION ═══ */
.hero {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 60px 32px;
  transition: var(--transition);
}

.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-family: 'Lora', serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 18px;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-hero {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--pill);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-hero.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(31, 78, 121, 0.3);
}

.btn-hero.primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(244, 162, 97, 0.4);
}

.btn-hero.secondary {
  background: var(--bg2);
  color: var(--primary);
  border: 2px solid var(--border);
}

.btn-hero.secondary:hover {
  background: var(--surface);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image img,
.hero-image video {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

/* ═══ MAIN CONTENT ═══ */
main { 
  flex: 1; 
  max-width: 1280px; 
  margin: 0 auto; 
  width: 100%; 
  padding: 36px 32px 100px; 
}

/* ═══ PROGRESS SECTION ═══ */
.progress-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 24px;
  margin-bottom: 0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  gap: 16px;
  flex-wrap: wrap;
}

.progress-section h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.btn-reset-progress {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg2);
  color: var(--text2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Cairo', sans-serif;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-reset-progress:hover {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(220, 38, 38, 0.2);
}

.btn-reset-progress svg {
  width: 14px;
  height: 14px;
}

.progress-stats {
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 16px;
}

.progress-stats strong {
  color: var(--primary);
  font-weight: 700;
}

.progress-bar-container {
  width: 100%;
  height: 12px;
  background: var(--bg2);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 20px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-percentage {
  text-align: right;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 8px;
}

/* ═══ TOOLBAR ═══ */
.toolbar {
  background: var(--surface); 
  border: 1px solid var(--border);
  border-radius: var(--radius); 
  padding: 18px 22px;
  display: flex; 
  align-items: center; 
  gap: 12px; 
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm); 
  margin-bottom: 6px;
  transition: var(--transition);
}

.progress-mini {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
  margin-left: auto;
}

.progress-mini svg {
  color: var(--primary);
}

.search-wrap { 
  flex: 1; 
  min-width: 200px; 
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  padding: 0 14px;
  gap: 10px;
}

.search-wrap:focus-within {
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.1);
}

.search-wrap svg { 
  color: var(--text3); 
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  transition: color 0.3s ease;
}

.search-wrap:focus-within svg {
  color: var(--primary);
}

#searchInput, #fullModeSearchInput {
  width: 100%;
  padding: 11px 0;
  border: none; 
  background: transparent;
  font-family: 'Cairo', sans-serif; 
  font-size: 13px;
  color: var(--text); 
  outline: none;
  transition: var(--transition);
}

#searchInput::placeholder, #fullModeSearchInput::placeholder {
  font-size: 13px;
  color: var(--text3);
}

#searchInput::placeholder { 
  color: var(--text3); 
}

.btn-search {
  padding: 11px 20px; 
  background: var(--primary); 
  color: #fff;
  border: none; 
  border-radius: var(--radius-sm);
  font-family: 'Cairo', sans-serif; 
  font-size: 14px; 
  font-weight: 700;
  cursor: pointer; 
  transition: var(--transition); 
  display: flex; 
  align-items: center; 
  gap: 6px; 
  white-space: nowrap;
}

.btn-search:hover { 
  background: var(--accent);
  box-shadow: 0 2px 8px rgba(244, 162, 97, 0.3);
}

.btn-filter, .btn-alphabet, .btn-fullmode {
  display: flex; 
  align-items: center; 
  gap: 7px;
  padding: 11px 16px; 
  border: 1.5px solid var(--border2);
  border-radius: var(--radius-sm); 
  background: var(--bg);
  color: var(--text2); 
  font-family: 'Cairo', sans-serif; 
  font-size: 14px; 
  font-weight: 600;
  cursor: pointer; 
  transition: var(--transition); 
  position: relative; 
  white-space: nowrap;
}

.btn-filter:hover, .btn-filter.open,
.btn-alphabet:hover, .btn-alphabet.open,
.btn-fullmode:hover { 
  border-color: var(--primary); 
  color: var(--primary); 
  background: var(--bg2); 
}

.filter-dot { 
  width: 7px; 
  height: 7px; 
  background: var(--accent); 
  border-radius: 50%; 
  position: absolute; 
  top: 7px; 
  right: 7px; 
  display: none; 
}

.filter-dot.show { 
  display: block; 
}

.results-info { 
  font-size: 13px; 
  color: var(--text3); 
  white-space: nowrap; 
  margin-left: auto; 
}

.results-info strong { 
  color: var(--primary); 
}

/* ═══ FILTER PANEL ═══ */
.filter-panel {
  background: var(--surface); 
  border: 1px solid var(--border);
  border-radius: var(--radius); 
  box-shadow: var(--shadow-lg);
  padding: 26px; 
  margin-bottom: 6px;
  display: none; 
  animation: slideDown 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  transition: var(--transition);
}

.filter-panel.open { 
  display: block; 
}

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

.filter-grid { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 28px; 
}

.filter-section h4 {
  font-size: 11px; 
  font-weight: 700; 
  text-transform: uppercase;
  letter-spacing: 1.3px; 
  color: var(--text3); 
  margin-bottom: 13px;
  display: flex; 
  align-items: center; 
  gap: 7px;
}

.filter-section h4 svg { 
  color: var(--primary); 
}

/* ═══ NUMBERING MODE CHECKBOX ═══ */
.numbering-mode-setting {
  padding: 12px;
  background: var(--bg2);
  border-radius: var(--radius-sm);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-custom {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border2);
  border-radius: 4px;
  background: var(--bg);
  transition: var(--transition);
  position: relative;
  margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
  background: var(--primary);
  border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.checkbox-text {
  flex: 1;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text2);
}

.checkbox-text strong {
  color: var(--text);
  font-weight: 600;
}

.checkbox-text small {
  display: block;
  font-size: 11px;
  color: var(--text3);
  margin-top: 4px;
}

.chip-row { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 7px; 
  margin-bottom: 11px; 
}

.chip {
  display: flex; 
  align-items: center; 
  gap: 5px;
  padding: 6px 13px; 
  border-radius: var(--pill); 
  border: 1.5px solid transparent;
  font-family: 'DM Mono', monospace; 
  font-size: 11.5px; 
  font-weight: 500;
  cursor: pointer; 
  transition: var(--transition); 
  user-select: none;
}

.chip .ck { 
  font-size: 10px; 
}

.chip:hover { 
  transform: scale(1.04); 
}

.chip[data-level="A1"] { background: var(--a1-l); color: var(--a1); border-color: #86efac; }
.chip[data-level="A1"].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }
.chip[data-level="A2"] { background: var(--a2-l); color: var(--a2); border-color: #67e8f9; }
.chip[data-level="A2"].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }
.chip[data-level="B1"] { background: var(--b1-l); color: var(--b1); border-color: #c4b5fd; }
.chip[data-level="B1"].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }
.chip[data-level="B2"] { background: var(--b2-l); color: var(--b2); border-color: #fcd34d; }
.chip[data-level="B2"].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }
.chip[data-level="C1"] { background: var(--c1-l); color: var(--c1); border-color: #fca5a5; }
.chip[data-level="C1"].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }
.chip[data-type]:not(.off) { background: var(--bg2); color: var(--primary); border-color: var(--primary); }
.chip[data-type].off { background: var(--bg2); color: var(--text3); border-color: var(--border); }

.chip-controls { 
  display: flex; 
  gap: 6px; 
  flex-wrap: wrap; 
}

.filter-footer {
  display: flex; 
  gap: 8px; 
  flex-wrap: wrap; 
  align-items: center;
  margin-top: 4px; 
  padding-top: 16px; 
  border-top: 1px solid var(--border);
  grid-column: 1/-1;
}

.btn-save-settings {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Cairo', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn-save-settings:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-save-settings svg {
  flex-shrink: 0;
}

.btn-xs {
  padding: 7px 15px; 
  border-radius: var(--pill);
  border: 1.5px solid var(--border2); 
  background: var(--bg);
  color: var(--text2); 
  font-family: 'Cairo', sans-serif;
  font-size: 12px; 
  font-weight: 600; 
  cursor: pointer; 
  transition: var(--transition);
}

.btn-xs:hover { 
  border-color: var(--primary); 
  color: var(--primary); 
  background: var(--bg2); 
}

.btn-xs.red:hover { 
  border-color: #dc2626; 
  color: #dc2626; 
  background: #fee2e2; 
}

/* ═══ ALPHABET MODAL ═══ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 300;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.open,
.modal-overlay.show {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transition: var(--transition);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg);
  color: var(--text2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

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

.modal-body {
  padding: 28px;
}

.alphabet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.letter-chip {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.letter-chip:hover {
  transform: scale(1.05);
  border-color: var(--primary);
}

.letter-chip.selected {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.modal-footer {
  padding: 20px 28px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn-modal {
  padding: 10px 24px;
  border-radius: var(--pill);
  font-family: 'Cairo', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-modal.primary {
  background: var(--primary);
  color: #fff;
}

.btn-modal.primary:hover {
  background: var(--primary-hover);
}

.btn-modal.secondary {
  background: var(--bg2);
  color: var(--text2);
  border: 1.5px solid var(--border);
}

.btn-modal.secondary:hover {
  background: var(--bg);
  border-color: var(--border2);
}

.btn-modal.danger {
  background: #dc2626;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-modal.danger:hover {
  background: #b91c1c;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

/* Reset Progress Modal */
.modal-confirm {
  max-width: 500px;
}

.modal-logo {
  height: 40px;
  margin-bottom: 12px;
}

.confirm-message {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text2);
}

.confirm-message p {
  margin: 0 0 12px 0;
}

.confirm-message strong {
  color: var(--text);
  font-size: 15px;
}

.confirm-list {
  margin: 12px 0;
  padding-left: 24px;
  list-style: disc;
}

.confirm-list li {
  margin: 6px 0;
  color: var(--text2);
}

.confirm-warning {
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(220, 38, 38, 0.08);
  border-left: 3px solid #dc2626;
  border-radius: 4px;
  color: #dc2626;
  font-weight: 600;
}

/* ═══ WORD LIST ═══ */
.list-container {
  background: var(--surface); 
  border: 1px solid var(--border);
  border-radius: var(--radius); 
  box-shadow: var(--shadow-sm); 
  overflow: visible;
  transition: var(--transition);
}

.list-header {
  display: grid; 
  grid-template-columns: 200px 1fr 88px 104px;
  gap: 14px; 
  padding: 11px 22px;
  background: var(--bg2); 
  border-bottom: 1px solid var(--border);
  font-size: 10.5px; 
  font-weight: 700; 
  text-transform: uppercase;
  letter-spacing: 1px; 
  color: var(--text3);
}

.word-list { 
  max-height: none;
  overflow-y: visible; 
  scroll-behavior: smooth; 
}

.word-row {
  display: grid; 
  grid-template-columns: 200px 1fr 88px 104px;
  gap: 14px; 
  align-items: center; 
  padding: 13px 22px;
  border-bottom: 1px solid var(--border); 
  cursor: pointer;
  transition: background 0.15s; 
  animation: rowIn 0.28s ease both;
}

.word-row:last-child { 
  border-bottom: none; 
}

.word-row:hover { 
  background: var(--bg2);
  box-shadow: inset 0 0 0 1px var(--border);
}

@keyframes rowIn { 
  from { opacity: 0; transform: translateX(-4px); } 
  to { opacity: 1; transform: translateX(0); } 
}

.col-arabic { 
  display: flex; 
  flex-direction: column; 
  gap: 2px; 
}

.ar-main { 
  font-size: 15px; 
  font-weight: 700; 
  color: var(--text); 
  direction: rtl; 
  text-align: right; 
  line-height: 1.3; 
}

.ar-extra { 
  font-size: 11px; 
  color: var(--text3); 
  direction: rtl; 
  text-align: right; 
}

.col-english { 
  display: flex; 
  flex-direction: column; 
  gap: 3px; 
  min-width: 0; 
}

.word-en {
  font-family: 'Lora', serif; 
  font-size: 17px; 
  font-weight: 700;
  color: var(--primary); 
  display: flex; 
  align-items: baseline; 
  gap: 8px; 
  flex-wrap: wrap;
}

.word-en .highlight {
  background: var(--accent);
  color: #fff;
  padding: 2px 4px;
  border-radius: 4px;
}

.type-badge {
  font-family: 'DM Mono', monospace; 
  font-size: 10px; 
  font-weight: 500;
  color: var(--text3); 
  background: var(--bg2); 
  padding: 2px 8px;
  border-radius: 20px; 
  border: 1px solid var(--border); 
  text-transform: lowercase;
}

.word-def {
  font-size: 12px; 
  color: var(--text3); 
  line-height: 1.55;
  max-height: 0; 
  overflow: hidden; 
  opacity: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s;
}

.word-row.open .word-def { 
  max-height: 80px; 
  opacity: 1; 
}

.col-level { 
  display: flex; 
  justify-content: center; 
}

.badge {
  font-family: 'DM Mono', monospace; 
  font-size: 11px; 
  font-weight: 700;
  padding: 4px 10px; 
  border-radius: 6px; 
  letter-spacing: 0.5px;
}

.badge.A1 { background: var(--a1-l); color: var(--a1); }
.badge.A2 { background: var(--a2-l); color: var(--a2); }
.badge.B1 { background: var(--b1-l); color: var(--b1); }
.badge.B2 { background: var(--b2-l); color: var(--b2); }
.badge.C1 { background: var(--c1-l); color: var(--c1); }

.col-actions { 
  display: flex; 
  align-items: center; 
  justify-content: flex-end; 
  gap: 6px; 
}

.icon-btn {
  width: 33px; 
  height: 33px; 
  border-radius: 50%;
  border: 1.5px solid var(--border); 
  background: var(--bg);
  color: var(--text3); 
  display: flex; 
  align-items: center; 
  justify-content: center;
  cursor: pointer; 
  transition: var(--transition); 
  flex-shrink: 0;
}

.icon-btn:hover { 
  border-color: var(--primary); 
  color: var(--primary); 
  background: var(--bg2); 
  transform: scale(1.1);
}

.icon-btn.snd:hover { 
  border-color: var(--a2); 
  color: var(--a2); 
  background: var(--a2-l); 
}

.icon-btn.snd.playing { 
  border-color: var(--a2); 
  color: var(--a2); 
  background: var(--a2-l); 
  animation: pulse 0.8s ease infinite; 
}

@keyframes pulse { 
  0%, 100% { box-shadow: 0 0 0 0 rgba(8, 145, 178, 0.4); } 
  50% { box-shadow: 0 0 0 6px rgba(8, 145, 178, 0); } 
}

.icon-btn.info.on { 
  border-color: var(--accent); 
  color: var(--accent); 
  background: var(--bg2); 
}

/* Unlearn button (X) - subtle and professional */
.icon-btn.unlearn {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--border);
  opacity: 0.4;
  transition: all 0.3s ease;
}

.icon-btn.unlearn.disabled {
  color: var(--text3);
  cursor: not-allowed;
  opacity: 0.25;
}

.icon-btn.unlearn.disabled:hover {
  border-color: var(--border);
  color: var(--text3);
  background: var(--bg);
  transform: none;
}

.icon-btn.unlearn.active {
  color: #e74c3c;
  opacity: 0.6;
  cursor: pointer;
}

.icon-btn.unlearn.active:hover {
  border-color: #e74c3c;
  color: #e74c3c;
  background: rgba(231, 76, 60, 0.08);
  opacity: 1;
  transform: scale(1.08);
}

.icon-btn.unlearn svg {
  width: 11px;
  height: 11px;
}

.empty-state { 
  text-align: center; 
  padding: 70px 20px; 
  color: var(--text3); 
}

.empty-state .big { 
  font-size: 52px; 
  margin-bottom: 14px; 
}

.empty-state h3 { 
  font-size: 19px; 
  color: var(--text2); 
  margin-bottom: 6px; 
}

/* ═══ FOOTER ═══ */
footer { 
  background: var(--surface); 
  border-top: 1px solid var(--border); 
  margin-top: auto;
  transition: var(--transition);
}

.footer-top {
  max-width: 1280px; 
  margin: 0 auto; 
  padding: 52px 32px 40px;
  display: grid; 
  grid-template-columns: 1fr 1fr 1fr; 
  gap: 44px;
}

.footer-brand .logo { 
  margin-bottom: 13px; 
}

.footer-brand p { 
  font-size: 13px; 
  color: var(--text3); 
  line-height: 1.75; 
  max-width: 280px; 
}

.footer-reference {
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--bg2);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text2);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-oxford-dl {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-oxford-dl:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

.btn-oxford-dl svg {
  width: 12px;
  height: 12px;
}

/* Useful Resources Section */
.footer-resources {
  margin-top: 10px;
}

.footer-resources h5 {
  font-family: 'Cairo', sans-serif;
  font-size: 10px;
  font-weight: 600;
  color: var(--text2);
  margin: 0 0 6px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.resource-buttons {
  display: flex;
  flex-direction: row;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.resource-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  position: relative;
  background: var(--bg2);
  white-space: nowrap;
}

.resource-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.resource-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.resource-icon svg {
  width: 11px;
  height: 11px;
}

.resource-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.resource-title {
  font-family: 'Cairo', sans-serif;
  font-size: 10px;
  font-weight: 600;
  color: var(--text);
  transition: color 0.3s ease;
  line-height: 1;
}

.resource-url {
  font-family: 'DM Mono', monospace;
  font-size: 8px;
  color: var(--text3);
  transition: color 0.3s ease;
  line-height: 1;
}

.resource-url::before {
  content: '(';
}

.resource-url::after {
  content: ')';
}

/* Brand Colors */
.resource-btn.engnovate {
  border-color: #2563eb;
}

.resource-btn.engnovate .resource-icon {
  background: #2563eb;
  color: #fff;
}

.resource-btn.engnovate:hover {
  background: rgba(37, 99, 235, 0.05);
  border-color: #2563eb;
}

.resource-btn.engnovate:hover .resource-title {
  color: #2563eb;
}

.resource-btn.ielts {
  border-color: #dc2626;
}

.resource-btn.ielts .resource-icon {
  background: #dc2626;
  color: #fff;
}

.resource-btn.ielts:hover {
  background: rgba(220, 38, 38, 0.05);
  border-color: #dc2626;
}

.resource-btn.ielts:hover .resource-title {
  color: #dc2626;
}

.resource-btn.british-council {
  border-color: #0066cc;
}

.resource-btn.british-council .resource-icon {
  background: #0066cc;
  color: #fff;
}

.resource-btn.british-council:hover {
  background: rgba(0, 102, 204, 0.05);
  border-color: #0066cc;
}

.resource-btn.british-council:hover .resource-title {
  color: #0066cc;
}

/* Oxford 5000 - compact C1 download (very small) */
.resource-btn.oxford-5000 {
  padding: 3px 6px;
  gap: 3px;
  border-color: var(--c1);
}
.resource-btn.oxford-5000 .resource-icon {
  width: 14px;
  height: 14px;
  background: var(--c1);
  color: #fff;
}
.resource-btn.oxford-5000 .resource-title {
  font-size: 9px;
}
.resource-btn.oxford-5000:hover {
  background: var(--c1-l);
  border-color: var(--c1);
}
.resource-btn.oxford-5000:hover .resource-title {
  color: var(--c1);
}

/* Tooltip for resource buttons */
.resource-btn[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 400;
  white-space: normal;
  width: 220px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 1000;
  line-height: 1.4;
}

.resource-btn[data-tooltip]::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: calc(100% + 2px);
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--text);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}

.resource-btn:hover[data-tooltip]::after,
.resource-btn:hover[data-tooltip]::before {
  opacity: 1;
}

/* Oxford 5000 tooltip - shift right toward center for full visibility */
.resource-btn.oxford-5000[data-tooltip]::after {
  left: 50%;
  transform: translateX(-35%);
}
.resource-btn.oxford-5000[data-tooltip]::before {
  left: 50%;
  transform: translateX(-35%);
}

/* Responsive */
@media (max-width: 768px) {
  .resource-buttons {
    gap: 4px;
  }
  
  .resource-btn {
    padding: 3px 6px;
  }
  
  .resource-icon {
    width: 16px;
    height: 16px;
  }
  
  .resource-icon svg {
    width: 10px;
    height: 10px;
  }
  
  .resource-title {
    font-size: 9px;
  }
  
  .resource-btn.oxford-5000 .resource-icon {
    width: 12px;
    height: 12px;
  }
  
  .resource-btn.oxford-5000 .resource-title {
    font-size: 8px;
  }
  
  .resource-url {
    font-size: 7px;
  }
  
  .resource-btn[data-tooltip]::after {
    width: 140px;
    font-size: 9px;
    padding: 5px 8px;
  }
}

.f-nav h5 { 
  font-size: 11px; 
  font-weight: 700; 
  text-transform: uppercase; 
  letter-spacing: 1.5px; 
  color: var(--text3); 
  margin-bottom: 15px; 
}

.f-nav ul { 
  list-style: none; 
}

.f-nav li { 
  margin-bottom: 9px; 
}

.f-nav a {
  text-decoration: none; 
  font-size: 13.5px; 
  color: var(--text2);
  transition: var(--transition); 
  display: flex; 
  align-items: center; 
  gap: 7px;
}

.f-nav a:hover { 
  color: var(--primary); 
}

.f-nav a svg { 
  opacity: 0.45; 
  flex-shrink: 0; 
}

.f-contact h5 { 
  font-size: 11px; 
  font-weight: 700; 
  text-transform: uppercase; 
  letter-spacing: 1.5px; 
  color: var(--text3); 
  margin-bottom: 15px; 
}

.contact-form { 
  display: flex; 
  flex-direction: column; 
  gap: 6px; /* Reduced from 9px */
  max-width: 280px; /* Added max-width to make it smaller */
}

.contact-form input,
.contact-form textarea {
  padding: 7px 10px; /* Reduced from 10px 13px */
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); 
  font-family: 'Cairo', sans-serif;
  font-size: 12px; /* Reduced from 13px */
  background: var(--bg); 
  color: var(--text); 
  outline: none;
  transition: var(--transition); 
  resize: none;
}

.contact-form input:focus,
.contact-form textarea:focus { 
  border-color: var(--primary); 
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.1); 
  background: var(--surface); 
}

.contact-form textarea { 
  min-height: 60px; /* Reduced from 76px */
}

.contact-form button {
  padding: 8px; /* Reduced from 10px */
  background: var(--primary); 
  color: #fff; 
  border: none;
  border-radius: var(--radius-sm); 
  font-family: 'Cairo', sans-serif;
  font-size: 13px; /* Reduced from 14px */
  font-weight: 700; 
  cursor: pointer; 
  transition: var(--transition);
}

.contact-form button:hover { 
  background: var(--primary-hover); 
}

.footer-bottom {
  border-top: 1px solid var(--border);
  max-width: 1280px; 
  margin: 0 auto; 
  padding: 18px 32px;
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  flex-wrap: wrap; 
  gap: 14px;
}

.copyright { 
  font-size: 13px; 
  color: var(--text3); 
}

.copyright strong { 
  color: var(--text2); 
}

.social-links { 
  display: flex; 
  gap: 7px; 
}

.social-btn {
  width: 35px; 
  height: 35px; 
  border-radius: 50%;
  border: 1.5px solid var(--border); 
  background: var(--bg);
  color: var(--text3); 
  display: flex; 
  align-items: center; 
  justify-content: center;
  text-decoration: none; 
  font-size: 15px; 
  transition: var(--transition);
}

.social-btn:hover { 
  transform: translateY(-2px); 
  box-shadow: var(--shadow-sm); 
}

.social-btn.fb:hover { 
  border-color: #1877f2; 
  color: #1877f2; 
  background: #e7f0ff; 
}

.social-btn.ig:hover { 
  border-color: #e1306c; 
  color: #e1306c; 
  background: #fde8f0; 
}

.social-btn.tw:hover { 
  border-color: #000000; 
  color: #000000; 
  background: #e8e8e8; 
}

body.dark-mode .social-btn.tw:hover { 
  border-color: #1DA1F2; 
  color: #1DA1F2; 
  background: #1a2a3a; 
}

.social-btn.li:hover { 
  border-color: #0a66c2; 
  color: #0a66c2; 
  background: #e8f2fc; 
}

.social-btn.em:hover { 
  border-color: var(--primary); 
  color: var(--primary); 
  background: var(--bg2); 
}

/* ═══ TOAST NOTIFICATION ═══ */
.toast {
  position: fixed; 
  bottom: 26px; 
  right: 26px;
  background: var(--text); 
  color: #fff;
  padding: 11px 18px; 
  border-radius: var(--radius-sm);
  font-size: 14px; 
  z-index: 9999; 
  box-shadow: var(--shadow-lg);
  transform: translateY(80px); 
  opacity: 0;
  transition: var(--transition); 
  pointer-events: none;
}

.toast.show { 
  transform: translateY(0); 
  opacity: 1; 
}

/* ═══ SCROLL CONTROLS ═══ */
.scroll-controls {
  position: fixed;
  right: 30px;
  bottom: 120px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}

.scroll-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(31, 78, 121, 0.3);
  transition: var(--transition);
  opacity: 0;
  transform: translateX(100px);
  pointer-events: none;
}

.scroll-btn.visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}

.scroll-btn:hover {
  background: var(--accent);
  transform: translateY(-2px) translateX(0);
  box-shadow: 0 6px 16px rgba(244, 162, 97, 0.4);
}

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

/* ═══ FILTER PANEL SCROLL CONTROLS ═══ */
.filter-scroll-controls {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 10;
}

.filter-scroll-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(31, 78, 121, 0.25);
  transition: var(--transition);
}

.filter-scroll-btn:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(244, 162, 97, 0.35);
}

.filter-scroll-btn svg {
  width: 16px;
  height: 16px;
}

/* Word list height limit for initial view */
.word-list-limited {
  max-height: 800px;
  overflow: hidden;
  position: relative;
}

.word-list-limited::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--surface));
  pointer-events: none;
}

.word-list-expanded {
  max-height: none;
}

.word-list-expanded::after {
  display: none;
}

/* ═══ CONTENT PAGES ═══ */
.content-page {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  max-width: 800px;
  margin: 0 auto;
}

.content-page h1 {
  font-family: 'Lora', serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
}

.content-page h2 {
  font-family: 'Lora', serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 12px;
}

.content-page p {
  font-size: 16px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* ═══ PAGE INFO AT BOTTOM (FULL MODE) ═══ */
.page-info-bottom {
  margin-top: 30px;
  padding: 20px;
  background: var(--surface);
  border-top: 2px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
}

.page-info-bottom .results-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  text-align: center;
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 15px;
  margin-left: 0;
}

.page-info-bottom .page-size-selector {
  margin: 0;
}

.info-divider {
  color: var(--text3);
  font-weight: 300;
}

/* ═══ PAGINATION ═══ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
  padding: 0;
}

.page-btn {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text2);
  font-family: 'Cairo', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--bg2);
}

.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-btn:disabled:hover {
  border-color: var(--border);
  color: var(--text2);
  background: var(--bg);
}

/* ═══ RESPONSIVE DESIGN ═══ */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-image {
    order: -1;
  }
  
  .filter-grid { 
    grid-template-columns: 1fr; 
  }
  
  .footer-top { 
    grid-template-columns: 1fr 1fr; 
  }
  
  .f-contact { 
    grid-column: 1/-1; 
  }
  
  .list-header, .word-row { 
    grid-template-columns: 160px 1fr 72px 90px; 
    gap: 10px; 
    padding: 12px 16px; 
  }
}

@media (max-width: 680px) {
  .content-page {
    padding: 28px 20px;
  }
  
  .content-page h1 {
    font-size: 28px;
  }
  
  .content-page h2 {
    font-size: 20px;
  }
  
  .header-inner { 
    padding: 0 18px; 
  }
  
  nav { 
    display: none; 
    flex-direction: column; 
    position: fixed; 
    top: 68px; 
    left: 0; 
    right: 0; 
    background: var(--surface); 
    border-bottom: 1px solid var(--border); 
    padding: 12px 18px; 
    gap: 4px; 
    box-shadow: var(--shadow-md); 
    z-index: 199; 
  }
  
  nav.open { 
    display: flex; 
  }
  
  .hamburger { 
    display: flex; 
  }
  
  .btn-dl { 
    display: none; 
  }
  
  .hero {
    padding: 40px 18px;
  }
  
  .hero-content h1 {
    font-size: 32px;
  }
  
  .hero-content p {
    font-size: 16px;
  }
  
  main { 
    padding: 22px 16px; 
  }
  
  .list-header { 
    display: none; 
  }
  
  .word-row { 
    grid-template-columns: 1fr auto; 
    grid-template-rows: auto auto; 
    gap: 6px 12px; 
    padding: 13px 16px; 
  }
  
  .col-arabic { 
    grid-column: 1; 
    grid-row: 1; 
  }
  
  .col-english { 
    grid-column: 1; 
    grid-row: 2; 
  }
  
  .col-level { 
    grid-column: 2; 
    grid-row: 1; 
    align-self: start; 
  }
  
  .col-actions { 
    grid-column: 2; 
    grid-row: 2; 
    align-self: end; 
  }
  
  .footer-top { 
    grid-template-columns: 1fr; 
    gap: 28px; 
    padding: 36px 18px 26px; 
  }
  
  .footer-bottom {
    padding: 16px 18px;
    flex-direction: column-reverse;
    align-items: flex-start;
  }
  
  .scroll-controls {
    bottom: 80px;
    right: 20px;
  }
  
  .alphabet-grid {
    grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
  }
}

/* ═══════════════════════════════════════════════════════════
   NEW FEATURES - WORD NUMBERING, PROGRESS, MODAL, FULL MODE
   ══════════════════════════════════════════════════════════ */

/* ═══ WORD NUMBERING ═══ */
.word-number {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  color: var(--text3);
  padding: 2px 6px;
  background: var(--bg2);
  border-radius: 4px;
  white-space: nowrap;
  align-self: center;
  opacity: 0.7;
  transition: var(--transition);
}

.word-num-col {
  width: 50px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text3);
}

.word-row:hover .word-number {
  opacity: 1;
  color: var(--primary);
  background: var(--primary);
  color: white;
}

/* Update word-row grid for numbering - English first, then Arabic */
.word-row {
  display: grid;
  grid-template-columns: 50px 1.2fr 1fr 100px 120px;
  gap: 12px;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.word-row:hover {
  background: var(--bg2);
}

.list-header {
  display: grid;
  grid-template-columns: 50px 1.2fr 1fr 100px 120px;
  gap: 12px;
}

/* ═══ PROGRESS VISUAL INDICATOR ═══ */
.word-row.has-progress {
  background: var(--bg2);
  border-left: 3px solid var(--primary);
  opacity: 0.75;
}

.word-row.has-progress:hover {
  opacity: 0.9;
}

/* ═══ INLINE MEANING REVEAL ═══ */
.inline-meaning {
  margin-top: 8px;
  padding: 10px 14px;
  background: linear-gradient(135deg, var(--bg2) 0%, var(--surface) 100%);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  animation: slideDown 0.2s ease-out;
}

.inline-def {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text2);
  font-style: italic;
  margin-bottom: 8px;
}

.inline-example-en {
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text);
  margin-top: 8px;
  padding: 8px 10px;
  background: rgba(31, 78, 121, 0.08);
  border-radius: 3px;
  font-style: italic;
}

.inline-example-ar {
  font-size: 11px;
  line-height: 1.7;
  color: var(--text2);
  direction: rtl;
  text-align: right;
  margin-top: 6px;
  padding: 6px 10px;
  background: rgba(244, 162, 97, 0.08);
  border-radius: 3px;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ═══ PROGRESS BREAKDOWN ═══ */
.progress-breakdown {
  display: flex;
  gap: 24px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.progress-detail-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text2);
}

.progress-detail-item svg {
  color: var(--primary);
  flex-shrink: 0;
}

.progress-detail-item strong {
  color: var(--primary);
  font-weight: 700;
}

/* ═══ WORD DETAIL MODAL ═══ */
.word-detail-modal {
  z-index: 10000;
}

.word-detail-modal-content {
  max-width: 700px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}

.word-detail-content {
  padding: 0;
}

.word-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 32px 32px 24px;
  border-bottom: 2px solid var(--border);
  background: linear-gradient(135deg, var(--bg2) 0%, var(--surface) 100%);
}

.word-detail-english {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.word-detail-english h2 {
  font-family: 'Lora', serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.word-detail-english .type-badge.large {
  font-size: 13px;
  padding: 6px 14px;
  display: inline-block;
  width: fit-content;
}

.word-detail-english .badge.large {
  font-size: 13px;
  padding: 6px 14px;
  display: inline-block;
  width: fit-content;
}

.modal-close-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: var(--border);
  transform: scale(1.05);
}

.modal-close-btn svg {
  color: var(--text2);
}

.word-detail-body {
  padding: 32px;
}

.word-detail-section {
  margin-bottom: 28px;
}

.word-detail-section:last-of-type {
  margin-bottom: 0;
}

.word-detail-section h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.word-detail-section h3 svg {
  color: var(--primary);
}

.arabic-translation {
  background: var(--bg2);
  padding: 20px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary);
}

.ar-main-large {
  font-family: 'Cairo', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  direction: rtl;
  text-align: right;
  margin-bottom: 8px;
}

.ar-extra-large {
  font-family: 'Cairo', sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--text2);
  direction: rtl;
  text-align: right;
}

.word-definition {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text2);
  background: var(--bg2);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-style: italic;
}

/* ═══ EXAMPLE SENTENCES IN MODAL ═══ */
.example-section {
  margin-top: 20px;
}

.example-sentences {
  background: linear-gradient(135deg, var(--bg2) 0%, var(--surface) 100%);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-top: 8px;
}

.example-en {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  margin: 0 0 8px 0;
  font-style: italic;
}

.example-ar {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text2);
  direction: rtl;
  text-align: right;
  margin: 0;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}

.word-metadata {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metadata-item {
  display: flex;
  gap: 8px;
  font-size: 15px;
  color: var(--text2);
  padding: 10px;
  background: var(--bg2);
  border-radius: var(--radius-sm);
}

.metadata-item strong {
  color: var(--text);
  min-width: 120px;
}

.word-detail-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.btn-modal {
  flex: 1;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

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

.btn-modal.primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-modal.secondary {
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
}

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

/* ═══ FULL MODE TOOLBAR ═══ */
.fullmode-toolbar {
  margin: 0 auto 24px;
  max-width: 1400px;
}

.page-size-selector {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Cairo', sans-serif;
}

.page-size-selector:hover {
  border-color: var(--primary);
  background: var(--bg2);
}

.page-size-selector:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.1);
}

/* ═══ IMPROVED SEARCH BOX STYLING ═══ */
.search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.search-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.1), var(--shadow-sm);
}

.search-wrap input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--text);
  font-family: 'Cairo', sans-serif;
}

.search-wrap input:focus {
  outline: none;
}

.search-wrap input::placeholder {
  color: var(--text3);
}

.search-wrap svg {
  color: var(--text3);
  flex-shrink: 0;
}

/* ═══ BUTTON HOVER: BLUE -> ORANGE ═══ */
.btn-search:hover,
.btn-filter:hover,
.btn-alphabet:hover,
.btn-fullmode:hover,
.page-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ═══ GO TO PAGE INPUT ═══ */
.go-to-page {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 8px;
}

.go-to-page input {
  width: 70px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: 'Cairo', sans-serif;
  text-align: center;
  transition: var(--transition);
}

.go-to-page input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(31, 78, 121, 0.1);
}

.go-to-page input::placeholder {
  color: var(--text3);
  font-size: 13px;
}

.go-to-page button {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
}

/* ═══ RESPONSIVE UPDATES ═══ */
@media (max-width: 1024px) {
  .word-row {
    grid-template-columns: 40px 1.2fr 1fr 80px 100px;
  }
  
  .list-header {
    grid-template-columns: 40px 1.2fr 1fr 80px 100px;
  }
  
  .word-num-col {
    width: 40px;
  }
  
  .progress-breakdown {
    gap: 16px;
  }
  
  .word-detail-header {
    padding: 24px 24px 20px;
  }
  
  .word-detail-english h2 {
    font-size: 26px;
  }
  
  .word-detail-body {
    padding: 24px;
  }
  
  .go-to-page input {
    width: 60px;
  }
}

@media (max-width: 768px) {
  .word-row {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto auto;
    gap: 8px;
    padding: 14px;
  }
  
  .word-number {
    grid-column: 1;
    grid-row: 1;
    width: fit-content;
  }
  
  .col-arabic {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  
  .col-english {
    grid-column: 1 / -1;
    grid-row: 3;
  }
  
  .col-level {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
  }
  
  .col-actions {
    grid-column: 1 / -1;
    grid-row: 4;
    justify-content: flex-end;
  }
  
  .list-header {
    display: none;
  }
  
  .progress-breakdown {
    flex-direction: column;
    gap: 12px;
  }
  
  .word-detail-modal-content {
    width: 95%;
    max-height: 90vh;
  }
  
  .word-detail-header {
    padding: 20px;
    flex-direction: column;
    gap: 16px;
  }
  
  .word-detail-english h2 {
    font-size: 22px;
  }
  
  .word-detail-body {
    padding: 20px;
  }
  
  .word-detail-actions {
    flex-direction: column;
  }
  
  .ar-main-large {
    font-size: 22px;
  }
  
  .ar-extra-large {
    font-size: 16px;
  }
}