:root {
  /* 기본: 화사하고 눈이 편안한 프리미엄 밝은 톤 (Light Mode) */
  --bg-main: #f8fafc;
  --bg-gradient-1: rgba(59, 130, 246, 0.06);
  --bg-gradient-2: rgba(16, 185, 129, 0.04);
  --bg-header: rgba(255, 255, 255, 0.88);
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-card-hover: #ffffff;
  --bg-inner-box: #f1f5f9;
  --border-color: #e2e8f0;
  --border-card: rgba(226, 232, 240, 0.9);
  
  --primary: #2563eb;
  --primary-glow: rgba(37, 99, 235, 0.25);
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-sub: #334155;
  
  --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --card-shadow-hover: 0 20px 30px -10px rgba(37, 99, 235, 0.15), 0 12px 16px -8px rgba(0, 0, 0, 0.05);
  
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --chip-bg: #f1f5f9;
  --chip-border: #e2e8f0;
  --chip-text: #334155;
  --chip-hover-bg: #e0f2fe;
  --chip-hover-text: #0284c7;
  
  --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 다크 모드 전환 시 클래스 */
body.dark-theme {
  --bg-main: #0a0e17;
  --bg-gradient-1: rgba(59, 130, 246, 0.08);
  --bg-gradient-2: rgba(16, 185, 129, 0.05);
  --bg-header: rgba(10, 14, 23, 0.85);
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(28, 36, 56, 0.95);
  --bg-inner-box: rgba(0, 0, 0, 0.25);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.08);
  
  --primary: #3b82f6;
  --primary-glow: rgba(59, 130, 246, 0.35);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;
  
  --card-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.5);
  
  --input-bg: rgba(15, 23, 42, 0.8);
  --input-border: rgba(255, 255, 255, 0.12);
  --chip-bg: rgba(255, 255, 255, 0.06);
  --chip-border: rgba(255, 255, 255, 0.1);
  --chip-text: #e2e8f0;
  --chip-hover-bg: rgba(59, 130, 246, 0.2);
  --chip-hover-text: #93c5fd;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 10% 10%, var(--bg-gradient-1) 0%, transparent 45%),
    radial-gradient(circle at 90% 90%, var(--bg-gradient-2) 0%, transparent 45%);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 36px;
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-badge {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 12px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 14px var(--primary-glow);
}

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

.logo-title p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--chip-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.theme-toggle-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.vip-plan-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  border: none;
  padding: 8px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
  transition: all 0.2s;
}

.vip-plan-btn:hover {
  transform: translateY(-1px) scale(1.03);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.45);
}

.blog-modal-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--chip-bg);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-modal-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.blog-modal-card {
  max-width: 680px;
}

.blog-preview-container {
  background: var(--bg-inner-box);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  max-height: 380px;
  overflow-y: auto;
}

.blog-pre {
  font-family: var(--font-family);
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-sub);
}

/* VIP Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 24px;
  padding: 32px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  0% { opacity: 0; transform: scale(0.92) translateY(10px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.modal-badge {
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.plan-card.featured {
  background: var(--bg-inner-box);
  border: 2px solid #f59e0b;
  border-radius: 16px;
  padding: 24px;
  position: relative;
  text-align: center;
}

.plan-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #f59e0b;
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 999px;
}

.plan-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 12px 0;
}

.plan-price span {
  font-size: 1rem;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  text-align: left;
  margin: 16px 0 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-sub);
}

.btn-subscribe {
  width: 100%;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
  border: none;
  padding: 12px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

.modal-footer-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 16px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  padding: 7px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

body.dark-theme .status-pill {
  color: #34d399;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

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

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}

.hero-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 20px;
  backdrop-filter: blur(8px);
  box-shadow: var(--card-shadow);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.hero-stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--card-shadow-hover);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.hero-stat-val {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-main);
}

/* 실시간 추가 분석 폼 스타일 */
.add-ticker-section {
  margin-bottom: 36px;
}

.add-ticker-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(12px);
}

.section-title h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.section-title p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.form-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.form-inputs input, .form-inputs select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-inputs input:focus, .form-inputs select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

#input-ticker {
  flex: 2;
  min-width: 200px;
  font-family: monospace;
  font-weight: 700;
  text-transform: uppercase;
}

#input-name {
  flex: 2;
  min-width: 180px;
}

#input-market {
  flex: 1;
  min-width: 160px;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 180px;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--primary-glow);
}

.quick-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.quick-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

.chip {
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  color: var(--chip-text);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.chip:hover {
  background: var(--chip-hover-bg);
  border-color: var(--primary);
  color: var(--chip-hover-text);
  transform: translateY(-1px);
}

.stock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.stock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.stock-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #2563eb, #10b981);
  opacity: 0.85;
}

.stock-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--card-shadow-hover);
}

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

.stock-name-box h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.ticker-badge {
  font-size: 0.8rem;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 700;
  display: inline-block;
  margin-top: 4px;
}

.signal-badge {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.signal-strong-buy { background: rgba(16, 185, 129, 0.15); color: #059669; border: 1px solid rgba(16, 185, 129, 0.4); }
.signal-buy { background: rgba(37, 99, 235, 0.15); color: #2563eb; border: 1px solid rgba(37, 99, 235, 0.4); }
.signal-neutral { background: rgba(217, 119, 6, 0.15); color: #d97706; border: 1px solid rgba(217, 119, 6, 0.4); }
.signal-caution { background: rgba(220, 38, 38, 0.15); color: #dc2626; border: 1px solid rgba(220, 38, 38, 0.4); }

body.dark-theme .signal-strong-buy { color: #34d399; }
body.dark-theme .signal-buy { color: #60a5fa; }
body.dark-theme .signal-neutral { color: #fbbf24; }
body.dark-theme .signal-caution { color: #f87171; }

.prob-container {
  background: var(--bg-inner-box);
  border-radius: 12px;
  padding: 14px;
}

.prob-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.prob-bar-bg {
  width: 100%;
  height: 10px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

body.dark-theme .prob-bar-bg {
  background: rgba(255, 255, 255, 0.1);
}

.prob-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 1s ease-in-out;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background: var(--bg-inner-box);
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border-color);
}

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

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.metric-val {
  font-size: 1.05rem;
  font-weight: 800;
  margin-top: 2px;
}

.text-green { color: var(--success); }
.text-red { color: var(--danger); }
.text-blue { color: var(--primary); }

.features-box {
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.features-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 700;
}

.feature-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.feature-tag {
  font-size: 0.75rem;
  background: var(--chip-bg);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--text-sub);
  font-weight: 600;
}

footer {
  text-align: center;
  padding: 32px 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}