/* ===== Design Tokens ===== */
/* Vercel Toolbar Hide */
vercel-live-feedback,
.vercel-toolbar {
  display: none !important;
}

:root {
  /* Colors */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --dark-bg: #0a0e27;
  --dark-surface: rgba(255, 255, 255, 0.05);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --neon-purple: #a78bfa;
  --neon-blue: #60a5fa;
  --neon-pink: #f472b6;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-neon: 0 0 20px rgba(167, 139, 250, 0.5);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== Global Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #2a1a3a 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* ===== Animated Background ===== */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(167, 139, 250, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(96, 165, 250, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(244, 114, 182, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* ===== Container ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

/* ===== Header ===== */
header {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: 2rem;
  animation: fadeInDown 0.8s ease;
}

header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 40px rgba(167, 139, 250, 0.5);
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Navigation ===== */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  padding: 1.2rem 0;
  transition: top 0.3s ease;
}

/* Fix for Google Translate bar overlap / Hide annoying popups but keep widget */
.goog-te-balloon-frame,
#goog-gt-tt,
.goog-te-spinner-pos {
  display: none !important;
}

.nav-translate {
  display: flex;
  align-items: center;
  margin-left: var(--spacing-md);
}

/* Custom styling for Google Translate dropdown */
.goog-te-gadget-simple {
  background-color: rgba(255, 255, 255, 0.1) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-sm) !important;
  padding: 4px 8px !important;
  font-family: inherit !important;
  font-size: 0.9rem !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  gap: 4px;
}

.goog-te-gadget-simple span {
  color: var(--text-primary) !important;
}

.goog-te-gadget-icon {
  display: none !important;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
}

.nav-link:hover {
  color: var(--neon-purple);
}

/* ===== Beta Notice ===== */
.beta-notice {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(239, 68, 68, 0.2) 100%);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: var(--spacing-sm);
  text-align: center;
  position: relative;
  margin-top: 60px;
}

.beta-close {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0.7;
  transition: var(--transition-fast);
}

.beta-close:hover {
  opacity: 1;
}

/* ===== Main Wrapper ===== */
.main-wrapper {
  position: relative;
  z-index: 1;
  padding: var(--spacing-lg) 0;
}

/* ===== Glass Card ===== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(167, 139, 250, 0.4);
  box-shadow: var(--shadow-neon);
  transform: translateY(-2px);
}

/* ===== Usage Info Section ===== */
.usage-info-section {
  max-width: 900px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  animation: fadeIn 0.8s ease 0.2s backwards;
}

.usage-badge {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 500;
}

.usage-icon {
  font-size: 1.25rem;
}

.api-settings-btn {
  background: var(--primary-gradient);
  color: var(--text-primary);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.api-settings-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-neon);
}

/* ===== API Settings Panel ===== */
.api-settings-panel {
  max-width: 900px;
  margin: 0 auto var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  animation: slideDown 0.4s ease;
}

.api-settings-panel.hidden {
  display: none;
}

.api-settings-header h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.api-settings-desc,
.api-settings-note {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
}

.api-key-inputs {
  display: grid;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.api-key-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.api-key-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.api-key-group input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.api-key-group input:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.1);
}

.api-link {
  color: var(--neon-blue);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.api-link:hover {
  color: var(--neon-purple);
}

/* ===== API Key Actions ===== */
.api-key-actions {
  max-width: 900px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  gap: var(--spacing-sm);
}

.save-keys-btn,
.clear-keys-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  font-size: 1rem;
}

.save-keys-btn {
  flex: 1;
  background: var(--primary-gradient);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.save-keys-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-neon);
}

.clear-keys-btn {
  background: rgba(239, 68, 68, 0.2);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.clear-keys-btn:hover {
  background: rgba(239, 68, 68, 0.3);
}

/* ===== Form Section ===== */
.form-section {
  max-width: 900px;
  margin: 0 auto;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.8s ease 0.4s backwards;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group select {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.1);
}

.form-group select option {
  background: var(--dark-bg);
  color: var(--text-primary);
}

/* ===== Button Row ===== */
.button-row {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

.submit-btn,
.random-btn,
.chat-btn {
  flex: 1;
  min-width: 150px;
  /* Reduced to allow wrapping/better stacking */
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  /* Slightly smaller to fit more text */
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  position: relative;
  overflow: hidden;
  text-align: center;
  word-break: keep-all;
  /* Better for Korean */
  overflow-wrap: break-word;
  /* Essential for long words in other languages */
  line-height: 1.2;
}

.submit-btn {
  background: var(--primary-gradient);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.submit-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.submit-btn:hover::before {
  width: 300px;
  height: 300px;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-neon);
}

.random-btn {
  background: var(--accent-gradient);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.random-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(79, 172, 254, 0.5);
}

.chat-btn {
  background: var(--secondary-gradient);
  text-decoration: none;
}

.chat-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(240, 147, 251, 0.5);
}

/* ===== Loading State ===== */
.btn-loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-loading.hidden {
  display: none;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Result Section ===== */
.result-section {
  max-width: 1200px;
  margin: var(--spacing-xl) auto;
  animation: fadeIn 0.8s ease;
}

.result-section.hidden {
  display: none;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.result-header h2 {
  font-size: 2rem;
  background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.action-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-fast);
  font-weight: 500;
}

.action-btn:hover {
  border-color: var(--neon-purple);
  background: rgba(167, 139, 250, 0.1);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.result-column {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.result-column:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-neon);
}

.ai-header {
  padding: var(--spacing-md);
  font-weight: 700;
  font-size: 1.1rem;
  text-align: center;
  border-bottom: 1px solid var(--glass-border);
}

.ai-header.gemini {
  background: linear-gradient(135deg, rgba(66, 133, 244, 0.2) 0%, rgba(52, 168, 83, 0.2) 100%);
}

.ai-header.chatgpt {
  background: linear-gradient(135deg, rgba(16, 163, 127, 0.2) 0%, rgba(0, 163, 108, 0.2) 100%);
}

.ai-header.claude {
  background: linear-gradient(135deg, rgba(204, 142, 103, 0.2) 0%, rgba(181, 118, 82, 0.2) 100%);
}

.result-content {
  padding: var(--spacing-lg);
  min-height: 200px;
  color: var(--text-secondary);
}

/* ===== Recommendation Cards ===== */
.recommendation-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: var(--transition-normal);
}

.recommendation-card:hover {
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.recommendation-card .card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.recommendation-card .card-number {
  background: var(--primary-gradient);
  color: white;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.recommendation-card .channel-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.recommendation-card .channel-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
  white-space: pre-wrap;
  word-break: keep-all;
  text-wrap: pretty;
}

.recommendation-card .card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.recommendation-card .meta-badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.recommendation-card .meta-badge.difficulty {
  background: rgba(167, 139, 250, 0.2);
  color: var(--neon-purple);
  border: 1px solid rgba(167, 139, 250, 0.3);
}

.recommendation-card .meta-badge.difficulty.easy {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  border-color: rgba(16, 185, 129, 0.3);
}

.recommendation-card .meta-badge.difficulty.hard {
  background: rgba(239, 68, 68, 0.2);
  color: var(--error);
  border-color: rgba(239, 68, 68, 0.3);
}

.recommendation-card .meta-badge.expertise {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
  letter-spacing: 1px;
}

.recommendation-card .meta-badge.cpm {
  background: rgba(96, 165, 250, 0.2);
  color: var(--neon-blue);
  border: 1px solid rgba(96, 165, 250, 0.3);
}

.recommendation-card .channel-reason {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.recommendation-card .channel-reason strong {
  color: var(--neon-purple);
}

.recommendation-card .card-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.recommendation-card .keyword-tag {
  background: rgba(167, 139, 250, 0.15);
  color: var(--neon-purple);
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

/* 경쟁 강도 배지 */
.recommendation-card .meta-badge.competition {
  font-weight: 600;
}

.recommendation-card .meta-badge.competition.blue-ocean {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.recommendation-card .meta-badge.competition.red-ocean {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.recommendation-card .meta-badge.competition.normal-ocean {
  background: rgba(156, 163, 175, 0.2);
  color: #9ca3af;
  border: 1px solid rgba(156, 163, 175, 0.4);
}

/* 경쟁 노트 */
.recommendation-card .competition-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin: var(--spacing-xs) 0;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--neon-purple);
  border-radius: 4px;
}



/* ===== SEO Section ===== */
.seo-section {
  max-width: 900px;
  margin: var(--spacing-xl) auto;
  padding: var(--spacing-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  position: relative;
  z-index: 1;
}

.seo-container h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.seo-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.seo-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===== FAQ Section ===== */
.faq-section {
  max-width: 900px;
  margin: var(--spacing-xl) auto;
  padding: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.faq-container h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
  background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(167, 139, 250, 0.4);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: var(--spacing-md);
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question:hover {
  color: var(--neon-purple);
}

.faq-answer {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--text-secondary);
  line-height: 1.8;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
  animation: slideDown 0.3s ease;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: var(--spacing-md);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.3s ease;
}

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

.modal-header h3 {
  font-size: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  opacity: 0.7;
  transition: var(--transition-fast);
  line-height: 1;
}

.modal-close:hover {
  opacity: 1;
  color: var(--neon-purple);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  animation: slideInRight 0.3s ease;
  max-width: 400px;
}

.toast.hidden {
  display: none;
}

/* ===== Footer ===== */
.site-footer {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--glass-border);
  position: relative;
  z-index: 1;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--neon-purple);
}

.visitor-counter {
  margin: var(--spacing-md) 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }

  to {
    opacity: 1;
    max-height: 1000px;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  header h1 {
    font-size: 2.5rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .nav-menu {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .button-row {
    flex-direction: column;
  }

  .submit-btn,
  .random-btn,
  .chat-btn {
    min-width: 100%;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }

  .usage-info-section {
    flex-direction: column;
  }
}

/* ===== Utility Classes ===== */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mt-4 {
  margin-top: var(--spacing-lg);
}

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}

.mb-4 {
  margin-bottom: var(--spacing-lg);
}

/* ===== Channel Studio Styles ===== */
.studio-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.studio-header h2 {
  font-size: 2.5rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: var(--spacing-sm);
}

.studio-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.studio-form {
  max-width: 800px;
  margin: 0 auto;
}

.studio-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.studio-input:focus {
  outline: none;
  border-color: var(--neon-purple);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.2);
}

.studio-input.large {
  font-size: 1.2rem;
  font-weight: 600;
  padding: 16px;
}

.studio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.studio-section {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.studio-section h3 {
  font-size: 1.2rem;
  color: var(--neon-blue);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-btn.back-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.action-btn.back-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.submit-btn.save-plan-btn {
  background: var(--gradient-primary);
}

@media (max-width: 768px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }
}

/* Make recommendation cards clickable */
.recommendation-card {
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  /* For the ::after tooltip positioning */
}

.recommendation-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
  border-color: var(--neon-purple);
}

.recommendation-card::after {
  content: '👉 클릭하여 기획 시작하기';
  position: absolute;
  bottom: 10px;
  right: 10px;
  font-size: 0.8rem;
  color: var(--neon-blue);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  background: rgba(0, 0, 0, 0.7);
  padding: 4px 8px;
  border-radius: 4px;
}

.recommendation-card:hover::after {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Channel Branding Styles ===== */
.branding-section {
  background: rgba(139, 92, 246, 0.05);
  /* Slight purple tint */
}

.branding-item {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--glass-border);
}

.branding-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.branding-preview {
  flex: 0 0 150px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 2px dashed var(--text-muted);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.banner-placeholder {
  width: 100%;
  height: 80px;
  background: var(--glass-bg);
  border: 2px dashed var(--text-muted);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.banner-branding .branding-preview {
  flex: 0 0 200px;
}

.branding-info {
  flex: 1;
}

.branding-info label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.branding-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.small-btn {
  margin-top: var(--spacing-sm);
  font-size: 0.8rem;
  padding: 6px 12px;
}

.input-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  margin-top: -6px;
}

.strong-input {
  font-weight: 600;
  font-size: 1.1rem;
}

.monospaced {
  font-family: monospace;
}

@media (max-width: 600px) {
  .branding-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .branding-preview {
    flex: 0 0 auto;
    width: 100%;
  }
}

/* AI 검색(GEO) 관련 보조 스타일 */
.section-title {
  font-size: 2.2rem;
  margin-bottom: 10px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.section-desc {
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.faq-section {
  padding: 80px 0;
}