/* ============================================
   DevOps 툴체인 중복 탐지기 — Styles
   Pretendard 기반, 에메랄드 악센트, 비대칭 레이아웃
   ============================================ */

:root {
  --bg: #ffffff;
  --bg-alt: #f8fafb;
  --ink: #0f172a;
  --ink-secondary: #475569;
  --ink-muted: #64748b;
  --accent: #05805a;
  --accent-hover: #04724d;
  --accent-subtle: #ecfdf5;
  --danger: #ef4444;
  --danger-subtle: #fef2f2;
  --warning: #f59e0b;
  --warning-subtle: #fffbeb;
  --border: #e2e8f0;
  --border-focus: #10b981;
  --radius: 4px;
  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animation base */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 24px; color: var(--accent); }
.logo-text { font-weight: 700; font-size: 16px; }
.header-nav { display: flex; gap: 8px; align-items: center; }
.nav-link {
  font-size: 14px;
  padding: 12px 16px;
  border-radius: var(--radius);
  color: var(--ink-secondary);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--ink); background: var(--bg-alt); }
.nav-cta {
  background: var(--accent);
  color: #fff !important;
  font-weight: 700;
}
.nav-cta:hover { background: var(--accent-hover); }

/* ---- Hero (asymmetric) ---- */
.hero {
  padding: 80px 0 64px;
  overflow: hidden;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-content { max-width: 520px; }
.hero-eyebrow {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
}
.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 17px;
  color: var(--ink-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-actions { display: flex; align-items: center; gap: 24px; }
.hero-stat { font-size: 14px; color: var(--ink-muted); }
.stat-number { font-family: var(--font-mono); font-weight: 700; color: var(--accent); font-size: 18px; }
.hero-visual { position: relative; }
.hero-image-wrapper {
  position: relative;
  margin-left: -40px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.hero-img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.hero-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(16,185,129,0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* ---- Pain Points (asymmetric) ---- */
.pain-points {
  padding: 64px 0;
  background: var(--bg-alt);
}
.pain-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
.pain-content { padding-top: 16px; }
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--ink-secondary);
  line-height: 1.7;
}
.accent { color: var(--accent); }
.pain-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
}
.pain-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transform: translateX(0);
  transition: transform 0.3s ease, border-color 0.3s;
}
.pain-card:hover {
  transform: translateX(-8px);
  border-color: var(--accent);
}
.pain-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}
.pain-label {
  font-size: 14px;
  color: var(--ink-secondary);
}

/* ---- Input Section ---- */
.input-section {
  padding: 80px 0;
}
.input-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}
.input-header { margin-bottom: 40px; text-align: center; }
.input-header .section-title { font-size: 28px; }
.input-header .section-desc { margin-top: 8px; }

/* Search */
.search-wrapper { margin-bottom: 24px; }
.search-box {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}
.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-muted);
}
.search-input {
  width: 100%;
  padding: 14px 52px 14px 48px;
  font-size: 16px;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  color: var(--ink);
}
.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}
.search-input::placeholder { color: var(--ink-muted); }
.search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-muted);
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.search-clear:hover { color: var(--ink); }

/* Category Tabs */
.category-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 24px;
}
.cat-tab {
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 400;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  cursor: pointer;
  color: var(--ink-secondary);
  transition: all 0.2s;
}
.cat-tab:hover { border-color: var(--ink-muted); color: var(--ink); }
.cat-tab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.cat-count {
  font-family: var(--font-mono);
  font-size: 12px;
  margin-left: 4px;
  opacity: 0.7;
}

/* Chips */
.chips-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 36px;
  padding: 8px 0;
  margin-bottom: 16px;
}
.chips-label {
  font-size: 13px;
  color: var(--ink-muted);
  font-weight: 700;
}
.chips-container { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 13px;
  background: var(--accent-subtle);
  color: var(--accent-hover);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius);
  animation: chipIn 0.25s ease-out;
}
.chip-remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent);
  padding: 4px 6px;
  font-size: 14px;
  line-height: 1;
  min-width: 28px;
  min-height: 28px;
}
@keyframes chipIn {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}
.chips-clear {
  font-size: 12px;
  color: var(--danger);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  text-decoration: underline;
  padding: 8px 12px;
  min-height: 44px;
}

/* Tool Grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}
.tool-card {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  background: var(--bg);
  user-select: none;
}
.tool-card:hover {
  border-color: var(--ink-muted);
  transform: translateY(-2px);
}
.tool-card.selected {
  border-color: var(--accent);
  background: var(--accent-subtle);
}
.tool-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.tool-icon { font-size: 20px; }
.tool-name { font-weight: 700; font-size: 14px; }
.tool-desc { font-size: 13px; color: var(--ink-secondary); margin-bottom: 8px; line-height: 1.5; }
.tool-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tool-price {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
}
.tool-vendor { font-size: 12px; color: var(--ink-muted); }
.tool-check {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.tool-card.selected .tool-check {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 0;
  color: var(--ink-muted);
}
.empty-state p { margin-top: 12px; font-size: 15px; }

/* Analyze button */
.analyze-wrapper { text-align: center; padding: 16px 0; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost {
  background: transparent;
  color: var(--ink-secondary);
  border: none;
}
.btn-ghost:hover { color: var(--ink); background: var(--bg-alt); }
.btn-outline {
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--ink-muted); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-analyze {
  background: var(--ink);
  color: #fff;
  padding: 16px 32px;
  font-size: 16px;
  position: relative;
  overflow: hidden;
}
.btn-analyze:not(:disabled):hover { background: #1e293b; }
.btn-analyze:disabled {
  background: var(--border);
  color: var(--ink-muted);
  cursor: not-allowed;
}
.btn-analyze:not(:disabled) .analyze-arrow {
  animation: arrowBounce 1.5s ease-in-out infinite;
}
@keyframes arrowBounce {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}
.analyze-hint { font-size: 13px; color: var(--ink-muted); margin-top: 8px; }

/* ---- Results ---- */
.results-section {
  padding: 40px 0 80px;
  background: var(--bg);
  animation: resultsFadeIn 0.5s ease-out;
}
@keyframes resultsFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.results-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

/* Summary Cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.summary-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: transform 0.3s;
}
.summary-card:hover { transform: translateY(-4px); }
.summary-label {
  display: block;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.summary-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
}
.summary-sub {
  display: block;
  font-size: 13px;
  color: var(--ink-muted);
  margin-top: 4px;
}
.summary-redundant .summary-value { color: var(--danger); }
.summary-saving .summary-value { color: var(--accent); }
.summary-tools .summary-value { color: var(--ink); }
.summary-severity .summary-value { font-size: 20px; }
.summary-severity .summary-value.high { color: var(--danger); }
.summary-severity .summary-value.medium { color: var(--warning); }
.summary-severity .summary-value.low { color: var(--accent); }

/* Visualization */
.viz-container {
  margin-bottom: 48px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.viz-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.viz-canvas-wrapper {
  position: relative;
  width: 100%;
  overflow-x: auto;
}
#viz-canvas {
  width: 100%;
  height: auto;
  display: block;
}
.viz-empty {
  text-align: center;
  padding: 40px 0;
  color: var(--ink-secondary);
  font-size: 15px;
}

/* Detail Table */
.detail-section { margin-bottom: 48px; }
.detail-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.detail-table-wrapper { overflow-x: auto; }
.detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.detail-table th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  font-weight: 700;
  font-size: 13px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.detail-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.detail-table tr:hover { background: var(--bg-alt); }
.severity-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 700;
}
.severity-badge.high { background: var(--danger-subtle); color: var(--danger); }
.severity-badge.medium { background: var(--warning-subtle); color: var(--warning); }
.severity-badge.low { background: var(--accent-subtle); color: var(--accent); }
.detail-empty {
  text-align: center;
  padding: 32px;
  color: var(--ink-muted);
}

/* Simulator */
.simulator {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}
.sim-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.sim-desc {
  font-size: 14px;
  color: var(--ink-secondary);
  margin-bottom: 24px;
}
.sim-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.sim-field { display: flex; flex-direction: column; gap: 8px; }
.sim-label { font-size: 14px; font-weight: 700; color: var(--ink-secondary); }
.sim-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
}
.sim-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s;
}
.sim-range::-webkit-slider-thumb:hover { transform: scale(1.2); }
.sim-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}
.sim-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.sim-result-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.sim-result-label {
  display: block;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.sim-result-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

/* CTA */
.cta-section {
  background: var(--ink);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(16,185,129,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-title {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 24px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions { display: flex; justify-content: center; gap: 12px; }

/* Feature Image */
.feature-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 0;
}
.feature-image img {
  width: 100%;
  display: block;
  aspect-ratio: 16/7;
  object-fit: cover;
}

/* ---- Footer ---- */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-info { font-size: 13px; color: var(--ink-muted); }
.footer-info p { margin: 0; }
.footer-update { margin-top: 2px; font-size: 12px; }
.footer-links { display: flex; gap: 16px; }
.footer-links a {
  font-size: 14px;
  color: var(--ink-secondary);
  text-decoration: none;
  transition: color 0.2s;
  padding: 8px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.footer-links a:hover { color: var(--accent); }

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--ink);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { order: -1; margin-bottom: 16px; }
  .hero-image-wrapper { margin-left: 0; }
  .hero-title { font-size: 36px; }
  .pain-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero { padding: 48px 0 32px; }
  .hero-title { font-size: 28px; }
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .sim-controls { grid-template-columns: 1fr; }
  .sim-result { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .pain-cards { flex-direction: row; overflow-x: auto; }
  .pain-card { min-width: 200px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 24px; }
  .section-title { font-size: 24px; }
  .summary-cards { grid-template-columns: 1fr 1fr; gap: 8px; }
  .summary-card { padding: 16px; }
  .summary-value { font-size: 24px; }
  .tool-grid { grid-template-columns: 1fr; }
  .category-tabs { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
  .cat-tab { white-space: nowrap; }
  .cta-section { padding: 32px 20px; }
}