@charset "UTF-8";

/* ── Level Tabs ─────────────────────────────── */
.ai-level-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.level-tab {
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #666;
  background: #F5F5F5;
  border-radius: 24px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  border: none;
}

.level-tab:hover {
  color: #FF6B6B;
  background: rgba(255, 107, 107, 0.08);
}

.level-tab.active {
  background: #FF6B6B;
  color: #fff;
}

/* ── Card Grid ───────────────────────────────── */
.ai-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

/* ── Card ────────────────────────────────────── */
.ai-card {
  background: #fff;
  border: 1px solid #EBEBEB;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}

.ai-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
  transform: translateY(-4px);
}

.ai-card.hidden {
  display: none;
}

.ai-card__thumb {
  width: 100%;
  height: 160px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-card__thumb-icon {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.25));
}

.ai-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.ai-card__icon {
  width: 52px;
  height: 52px;
  background: rgba(255, 107, 107, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #FF6B6B;
}

.ai-card__badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  width: fit-content;
}

.badge--beginner     { background: #E8F5E9; color: #388E3C; }
.badge--intermediate { background: #FFF3E0; color: #E65100; }
.badge--advanced     { background: #FFEBEE; color: #C62828; }
.badge--expert       { background: #F3E8FF; color: #6D28D9; }

.ai-card__title {
  font-size: 18px;
  font-weight: 700;
  color: #1A1A1A;
}

.ai-card__desc {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
  flex: 1;
}

.ai-card__cta {
  font-size: 14px;
  font-weight: 600;
  color: #FF6B6B;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Sub Hero ────────────────────────────────── */
.ai-sub-hero {
  background: #F5F5F5;
  padding: 80px 0 60px;
}

.ai-sub-hero__inner {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.ai-sub-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #999;
  transition: color 0.2s;
}

.ai-sub-hero__back:hover { color: #FF6B6B; }

.ai-sub-hero__title {
  font-size: 40px;
  font-weight: 700;
  color: #1A1A1A;
  margin-top: 16px;
  line-height: 1.2;
}

.ai-sub-hero__desc {
  font-size: 16px;
  color: #666;
  margin-top: 12px;
  line-height: 1.7;
}

/* ── Sub Section ─────────────────────────────── */
.ai-sub-section {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 0;
}

.ai-sub-section__title {
  font-size: 26px;
  font-weight: 700;
  color: #1A1A1A;
}

.ai-sub-section__lead {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
  margin-top: 12px;
}

/* ── Tool Grid ───────────────────────────────── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.tool-card {
  background: #fff;
  border: 1px solid #EBEBEB;
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.tool-card__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.tool-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #F5F5F5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.tool-card__meta { display: flex; flex-direction: column; gap: 4px; }

.tool-card__name {
  font-size: 18px;
  font-weight: 700;
  color: #1A1A1A;
}

.tool-card__tag {
  font-size: 11px;
  background: #F5F5F5;
  color: #666;
  padding: 2px 10px;
  border-radius: 10px;
  width: fit-content;
}

.tool-card__desc {
  font-size: 14px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 20px;
  flex: 1;
}

.tool-card__features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.tool-card__feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: #444;
  line-height: 1.6;
}

.tool-card__feature::before {
  content: '✓';
  color: #FF6B6B;
  font-weight: 700;
  flex-shrink: 0;
}

.tool-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #FF6B6B;
  padding: 8px 16px;
  border: 1px solid #FF6B6B;
  border-radius: 8px;
  width: fit-content;
  transition: all 0.2s;
}

.tool-card__link:hover {
  background: #FF6B6B;
  color: #fff;
}

/* ── Tip Box ─────────────────────────────────── */
.tip-box {
  background: rgba(255, 107, 107, 0.06);
  border-left: 4px solid #FF6B6B;
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin-top: 40px;
}

.tip-box__title {
  font-size: 14px;
  font-weight: 700;
  color: #FF6B6B;
  margin-bottom: 8px;
}

.tip-box p {
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

/* ── Concept Box (what-is-ai) ────────────────── */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.concept-card {
  background: #fff;
  border: 1px solid #EBEBEB;
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
}

.concept-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(255, 107, 107, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #FF6B6B;
  margin: 0 auto 16px;
}

.concept-card__title {
  font-size: 16px;
  font-weight: 700;
  color: #1A1A1A;
  margin-bottom: 10px;
}

.concept-card p {
  font-size: 13px;
  color: #666;
  line-height: 1.7;
}

/* ── Step List (MCP 등) ──────────────────────── */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-item__num {
  width: 36px;
  height: 36px;
  background: #FF6B6B;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-item__body { flex: 1; }

.step-item__title {
  font-size: 16px;
  font-weight: 700;
  color: #1A1A1A;
  margin-bottom: 4px;
}

.step-item p {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
}

/* ── AI Hierarchy ────────────────────────────── */
.ai-hierarchy {
  margin-top: 40px;
}

.ai-hier__level {
  border-radius: 14px;
  padding: 18px 20px;
}

.ai-hier__level > .ai-hier__level {
  margin-top: 10px;
}

.ai-hier__label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: #1A1A1A;
  margin-bottom: 10px;
}

.ai-hier__label em {
  font-style: normal;
  font-weight: 400;
  font-size: 12px;
  color: #999;
  margin-left: 8px;
}

.level--ai  { background: rgba(255, 107, 107, 0.05); }
.level--ml  { background: rgba(255, 107, 107, 0.10); }
.level--dl  { background: rgba(255, 107, 107, 0.18); }
.level--gen { background: #FF6B6B; }
.level--gen .ai-hier__label { color: #fff; margin-bottom: 0; }
.level--gen .ai-hier__label em { color: rgba(255, 255, 255, 0.75); }

/* ── CLI Install Grid ────────────────────────── */
.cli-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.cli-card {
  background: #fff;
  border: 1px solid #EBEBEB;
  border-radius: 12px;
  padding: 20px 24px;
}

.cli-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.cli-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.cli-card__name {
  font-size: 15px;
  font-weight: 700;
  color: #1A1A1A;
}

.cli-card__req {
  display: block;
  font-size: 11px;
  color: #999;
  margin-top: 2px;
}

.cli-card__cmd {
  display: block;
  background: #1A1A1A;
  color: #E8E8E8;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  overflow-x: auto;
  white-space: nowrap;
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 1024px) {
  .ai-card-grid     { grid-template-columns: repeat(2, 1fr); }
  .concept-grid     { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .ai-card-grid     { grid-template-columns: 1fr; }
  .tool-grid        { grid-template-columns: 1fr; }
  .concept-grid     { grid-template-columns: 1fr; }
  .cli-grid         { grid-template-columns: 1fr; }
  .ai-sub-hero__title { font-size: 28px; }
}