/* AITChek.online — Awwwards-Tier Principal UI/UX Design System */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Fira+Code:wght@400;500&display=swap');

:root {
  --bg-main: #fafafa;
  --bg-card: #ffffff;
  --bg-card-subtle: #f8fafc;
  
  --border-subtle: rgba(226, 232, 240, 0.8);
  --border-strong: #cbd5e1;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.15);
  
  --secondary: #0284c7;
  --accent: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  
  --font-ar: 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-code: 'Fira Code', monospace;

  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-diffused: 0 20px 40px -15px rgba(15, 23, 42, 0.05), 0 0 1px rgba(15, 23, 42, 0.1);
  --shadow-elevated: 0 25px 60px -15px rgba(79, 70, 229, 0.12), 0 10px 20px -5px rgba(15, 23, 42, 0.04);
}

[dir="rtl"] { font-family: var(--font-ar); }
[dir="ltr"] { font-family: var(--font-en); }

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  background-image: 
    radial-gradient(circle at 50% -10%, rgba(99, 102, 241, 0.12) 0%, rgba(6, 182, 212, 0.06) 40%, transparent 75%),
    linear-gradient(to bottom, #ffffff 0%, #fafafa 100%);
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Floating Glass Island Header */
header {
  position: sticky;
  top: 16px;
  z-index: 100;
  max-width: 1140px;
  margin: 16px auto 0;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.06);
  transition: all 0.3s var(--ease-spring);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.25rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4f46e5, #0284c7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #ffffff;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.25);
  transition: transform 0.3s var(--ease-spring);
}

.logo:hover .logo-icon {
  transform: scale(1.05) rotate(-4deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: color 0.2s;
  position: relative;
}

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

.lang-btn {
  background: #f1f5f9;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 9999px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s var(--ease-spring);
}

.lang-btn:hover {
  background: #e2e8f0;
  transform: scale(1.02);
}

/* Double-Bezel Hardware Card Architecture */
.glass-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  box-shadow: var(--shadow-diffused);
  transition: all 0.4s var(--ease-spring);
}

.glass-panel:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-elevated);
  transform: translateY(-2px);
}

/* Badges & Micro-Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.badge-glow {
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.2);
  color: #4338ca;
}

.badge-success {
  background: rgba(16, 185, 129, 0.08);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.08);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.08);
  color: #be123c;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Hero Section */
.hero {
  padding: 80px 0 50px;
  text-align: center;
}

.hero-badge {
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text-main);
  line-height: 1.2;
  max-width: 900px;
  margin-inline: auto;
}

.hero h1 span {
  background: linear-gradient(135deg, #4f46e5, #0284c7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* Input Form — Double Bezel Container */
.audit-box {
  max-width: 760px;
  margin: 0 auto;
  padding: 12px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 20px 50px -15px rgba(15, 23, 42, 0.08);
}

.input-group {
  display: flex;
  gap: 10px;
  background: #ffffff;
  padding: 8px;
  border-radius: 24px;
  border: 1px solid var(--border-subtle);
}

.url-input-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.url-icon {
  position: absolute;
  font-size: 1.1rem;
  color: var(--text-dim);
}

[dir="rtl"] .url-icon { right: 18px; }
[dir="ltr"] .url-icon { left: 18px; }

.url-input {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.05rem;
  font-family: inherit;
  font-weight: 500;
}

[dir="rtl"] .url-input { padding-right: 48px; }
[dir="ltr"] .url-input { padding-left: 48px; }

.url-input:focus {
  outline: none;
}

/* Nested Button CTA with trailing circle icon */
.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  color: #ffffff;
  border: none;
  padding: 12px 28px;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  white-space: nowrap;
  box-shadow: 0 8px 24px -4px rgba(79, 70, 229, 0.35);
  transition: all 0.3s var(--ease-spring);
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 30px -4px rgba(79, 70, 229, 0.45);
}

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

.presets {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.presets span {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
}

.preset-chip {
  background: #f1f5f9;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease-spring);
}

.preset-chip:hover {
  background: #e2e8f0;
  color: var(--text-main);
  transform: translateY(-1px);
}

.platforms-banner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.platform-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.8);
  padding: 6px 16px;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
}

/* Scanner Overlay */
.scanner-overlay {
  display: none;
  padding: 40px 0;
}

.scanner-card {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px;
  text-align: center;
  border-radius: 32px;
}

.radar-spinner {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 50%;
  border: 4px solid #f1f5f9;
  border-top-color: var(--primary);
  border-right-color: var(--secondary);
  animation: spin 0.9s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

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

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: #f1f5f9;
  border-radius: 9999px;
  overflow: hidden;
  margin: 24px 0 16px;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #4f46e5, #0284c7, #10b981);
  border-radius: 9999px;
  transition: width 0.4s var(--ease-spring);
}

.scan-step-log {
  font-family: var(--font-code);
  font-size: 0.88rem;
  color: var(--primary);
  min-height: 24px;
  font-weight: 600;
}

/* Dashboard Section */
.dashboard-section {
  display: none;
  padding: 40px 0 80px;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 20px;
}

.analyzed-url-box h2 {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 24px;
  margin-bottom: 28px;
}

@media (max-width: 992px) {
  .overview-grid { grid-template-columns: 1fr; }
}

.score-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: 28px;
}

.circle-score-wrapper {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 16px 0 20px;
}

.circle-score-wrapper svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.circle-bg {
  fill: none;
  stroke: #f1f5f9;
  stroke-width: 12;
}

.circle-progress {
  fill: none;
  stroke: url(#scoreGradient);
  stroke-width: 12;
  stroke-dasharray: 502;
  stroke-dashoffset: 502;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.4s var(--ease-spring);
}

.score-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.score-val {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-main);
}

.score-total {
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 600;
}

.metrics-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 576px) {
  .metrics-summary-grid { grid-template-columns: 1fr; }
}

.metric-item-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-diffused);
  transition: transform 0.3s var(--ease-spring);
}

.metric-item-card:hover {
  transform: translateY(-2px);
}

.metric-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.metric-info h4 {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 700;
}

.metric-info .val {
  font-size: 1.4rem;
  font-weight: 900;
}

/* PageSpeed & AEO Integration Cards */
.pagespeed-integration-card {
  margin-bottom: 20px;
  padding: 24px 28px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-diffused);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  border-radius: 24px;
}

.pagespeed-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.google-icon {
  width: 44px;
  height: 44px;
  background: #f1f5f9;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.4rem;
  color: #4285f4;
}

.pagespeed-details h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
}

.pagespeed-details p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.pagespeed-score-badge {
  display: flex;
  align-items: center;
  gap: 20px;
}

.ps-score { 
  text-align: center; 
  padding: 8px 16px;
  border-radius: 14px;
  background: #f8fafc;
}

.ps-score .num { font-size: 1.5rem; font-weight: 900; }
.ps-score.mobile .num { color: #059669; }
.ps-score.desktop .num { color: #0284c7; }

.btn-secondary {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 10px 20px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition: all 0.2s var(--ease-spring);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

/* Category Filter Nav Tabs */
.category-filter-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.cat-tab {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 9px 20px;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s var(--ease-spring);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}

.cat-tab:hover {
  background: #f8fafc;
  color: var(--text-main);
}

.cat-tab.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
}

/* Checklist Cards */
.checklist-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-item-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-diffused);
  transition: all 0.2s ease;
}

.check-item-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 8px 24px -6px rgba(15, 23, 42, 0.08);
}

.check-header {
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 14px;
}

.check-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.check-status-icon { font-size: 1.2rem; }

.check-name {
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--text-main);
}

.check-category-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-dim);
  background: #f1f5f9;
  padding: 3px 10px;
  border-radius: 9999px;
}

.check-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.check-expand-icon {
  color: var(--text-dim);
  transition: transform 0.25s var(--ease-spring);
}

.check-item-card.open .check-expand-icon {
  transform: rotate(180deg);
}

.check-body {
  display: none;
  padding: 0 22px 20px;
  border-top: 1px solid #f1f5f9;
  background: #fafafa;
}

.check-item-card.open .check-body {
  display: block;
}

.check-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 14px 0 10px;
  line-height: 1.6;
}

.recommendation-box {
  background: rgba(79, 70, 229, 0.06);
  border-left: 3px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 10px 10px 0;
  margin-top: 10px;
}

[dir="rtl"] .recommendation-box {
  border-left: none;
  border-right: 3px solid var(--primary);
  border-radius: 10px 0 0 10px;
}

.recommendation-box h5 {
  font-weight: 800;
  color: #3730a3;
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.code-preview {
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid #334155;
  padding: 12px 16px;
  border-radius: 10px;
  font-family: var(--font-code);
  font-size: 0.84rem;
  margin-top: 10px;
  overflow-x: auto;
}