/* ==========================================
   다잇다 (DAIDA) 메인 스타일시트
   교육을 잇다 · 미래를 잇다
   ========================================== */

/* CSS 변수 - 디자인 토큰 */
:root {
  /* 메인 컬러 - 파란/적 계열 */
  --primary: #1E5AA8;        /* 다잇다 메인 블루 (신뢰감) */
  --primary-light: #4A82CC;
  --primary-dark: #144080;
  --accent: #E63946;         /* 포인트 레드 (따뜻함) */
  --accent-light: #F26B73;

  /* 텍스트 */
  --ink: #1a1a1a;
  --ink60: #555;
  --ink40: #888;
  --ink20: #bbb;

  /* 배경 */
  --bg: #F8F9FB;             /* 부드러운 배경 */
  --bg-soft: #EEF2F7;
  --card: #ffffff;
  --cream: #FAF8F3;

  /* 기존 색상 유지 (사이드 카드용) */
  --blue: #1a5276;
  --blue-light: #2980B9;
  --green: #1E8449;
  --yellow: #B7950B;
  --purple: #7D3C98;

  /* 폰트 */
  --serif: 'Noto Serif KR', serif;
  --sans: 'Noto Sans KR', sans-serif;
}

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

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================
   상단 뉴스 티커
   ========================================== */
.ticker {
  background: var(--ink);
  color: #fff;
  padding: 8px 0;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-inner {
  display: inline-block;
  animation: scroll 40s linear infinite;
}

.ticker-inner span {
  margin-right: 60px;
  font-size: 13px;
  font-weight: 500;
}

.ticker-inner .hot {
  color: #F39C12;
  font-weight: 700;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================
   헤더
   ========================================== */
.header {
  background: var(--card);
  border-bottom: 3px solid var(--ink);
}

.header-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #ddd;
}

.header-date {
  font-size: 12px;
  color: var(--ink40);
}

.header-links {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--ink40);
}

.header-links a:hover {
  color: var(--accent);
}

.header-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
}

.logo {
  font-family: var(--serif);
  font-size: 48px;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--ink);
}

.logo em {
  font-style: normal;
  color: var(--accent);
}

.slogan {
  font-size: 14px;
  color: var(--ink40);
  margin-top: 6px;
  letter-spacing: 3px;
}

/* ==========================================
   네비게이션
   ========================================== */
.nav {
  background: var(--ink);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.nav a {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 14px 20px;
  transition: background 0.2s;
}

.nav a:hover,
.nav a.active {
  background: var(--accent);
}

.nav a.home-btn {
  background: var(--accent);
  font-weight: 700;
}

.nav-right {
  margin-left: auto;
}

.nav-search {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 4px;
  padding: 8px 14px;
  color: #fff;
  font-size: 13px;
  font-family: var(--sans);
  width: 180px;
  outline: none;
}

.nav-search::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   속보 바
   ========================================== */
.breaking {
  max-width: 1200px;
  margin: 16px auto 0;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.breaking-bar {
  background: var(--accent);
  color: #fff;
  padding: 6px 16px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.breaking-text {
  font-size: 14px;
  color: #333;
  font-weight: 500;
}

/* ==========================================
   메인 컨테이너
   ========================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* ==========================================
   메인 그리드 (히어로 + 사이드)
   ========================================== */
.grid-main {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

/* 히어로 카드 */
.hero-card {
  background: var(--card);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.3s;
}

.hero-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.hero-img {
  width: 100%;
  height: 360px;
  background: linear-gradient(135deg, #8E1600, #C0392B);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-img .cat-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 3px;
}

.hero-img .img-text {
  color: rgba(255, 255, 255, 0.15);
  font-family: var(--serif);
  font-size: 84px;
  font-weight: 900;
  letter-spacing: 8px;
}

.hero-body {
  padding: 24px;
}

.hero-body h2 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 12px;
}

.hero-body p {
  font-size: 14px;
  color: var(--ink60);
  line-height: 1.8;
  margin-bottom: 14px;
}

.hero-meta {
  font-size: 12px;
  color: var(--ink40);
  display: flex;
  gap: 12px;
}

/* 사이드 리스트 */
.side-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.side-card {
  display: flex;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
  cursor: pointer;
}

.side-card:last-child {
  border-bottom: none;
}

.side-thumb {
  width: 100px;
  height: 72px;
  border-radius: 4px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.2);
}

.thumb-blue { background: linear-gradient(135deg, #1a5276, #2980B9); }
.thumb-purple { background: linear-gradient(135deg, #7D3C98, #A569BD); }
.thumb-green { background: linear-gradient(135deg, #1E8449, #27AE60); }
.thumb-yellow { background: linear-gradient(135deg, #B7950B, #F1C40F); }

.side-card .cat {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
  display: block;
}

.side-card h3 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 6px;
}

.side-card:hover h3 {
  color: var(--accent);
}

.side-card .meta {
  font-size: 11px;
  color: var(--ink40);
}

/* ==========================================
   학원 찾기 섹션
   ========================================== */
.academy-finder {
  background: linear-gradient(135deg, #1a5276, #2980B9);
  color: #fff;
  padding: 32px 24px;
  border-radius: 8px;
  margin-bottom: 40px;
  text-align: center;
}

.academy-header h2 {
  font-family: var(--serif);
  font-size: 24px;
  margin-bottom: 8px;
}

.academy-header p {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 20px;
}

.academy-search {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.academy-search select {
  padding: 10px 14px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-family: var(--sans);
  cursor: pointer;
}

.btn-search {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s;
}

.btn-search:hover {
  transform: scale(1.05);
}

/* ==========================================
   인기 카테고리
   ========================================== */
.section-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 40px;
}

.cat-item {
  background: var(--card);
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  display: block;
  border: 1px solid #eee;
}

.cat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border-color: var(--accent);
}

.cat-icon {
  font-size: 32px;
  display: block;
  margin-bottom: 8px;
}

.cat-name {
  font-size: 14px;
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
}

.cat-count {
  font-size: 11px;
  color: var(--ink40);
}

/* ==========================================
   푸터
   ========================================== */
.footer {
  background: var(--ink);
  color: #aaa;
  padding: 40px 24px;
  margin-top: 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 24px;
  border-bottom: 1px solid #333;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 4px;
  margin-bottom: 6px;
}

.footer-logo em {
  font-style: normal;
  color: var(--accent);
}

.footer-slogan {
  font-size: 12px;
  color: #666;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  flex-wrap: wrap;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  font-size: 12px;
  color: #555;
  line-height: 2;
}

/* ==========================================
   반응형 (모바일 대응)
   ========================================== */
@media (max-width: 900px) {
  .grid-main {
    grid-template-columns: 1fr;
  }

  .logo {
    font-size: 32px;
    letter-spacing: 4px;
  }

  .nav-inner {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav a {
    padding: 10px 14px;
    font-size: 12px;
  }

  .nav-right {
    width: 100%;
    padding: 8px 0;
    text-align: center;
  }

  .hero-img {
    height: 240px;
  }

  .hero-body h2 {
    font-size: 20px;
  }

  .academy-search {
    flex-direction: column;
  }

  .academy-search select,
  .btn-search {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .header-top {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

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

/* ==========================================
   다잇다 히어로 섹션 (새 디자인)
   ========================================== */
.hero-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 32px 0;
  padding: 48px 32px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 16px;
  color: #fff;
  align-items: center;
}

.hero-content {
  padding: 16px 0;
}

.hero-tagline {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #fff;
}

.hero-title em {
  font-style: normal;
  color: #FFD93D;
}

.hero-desc {
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.9;
}

/* AI 챗봇 카드 */
.hero-chatbot {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chatbot-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid #eee;
}

.chatbot-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.chatbot-header strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
}

.chatbot-status {
  font-size: 11px;
  color: #1E8449;
  font-weight: 500;
}

.chatbot-messages {
  min-height: 80px;
  max-height: 200px;
  overflow-y: auto;
  padding: 8px 0;
}

.msg-bot {
  background: var(--bg-soft);
  color: var(--ink);
  padding: 12px 16px;
  border-radius: 12px;
  border-top-left-radius: 4px;
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 8px;
  max-width: 90%;
}

.msg-user {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  border-top-right-radius: 4px;
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 8px;
  margin-left: auto;
  max-width: 90%;
}

.chatbot-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.suggest-btn {
  background: var(--bg-soft);
  color: var(--primary);
  border: 1px solid #e0e7ef;
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.suggest-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.chatbot-input {
  display: flex;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid #eee;
}

.chatbot-input input {
  flex: 1;
  border: 1px solid #e0e7ef;
  border-radius: 20px;
  padding: 10px 16px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

.chatbot-input input:focus {
  border-color: var(--primary);
}

.chatbot-input button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 20px;
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}

.chatbot-input button:hover {
  background: var(--primary-dark);
}

/* ==========================================
   인기 키워드 그리드 (모던 스타일)
   ========================================== */
.hot-keywords {
  margin: 48px 0;
}

.section-title-modern {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-emoji {
  font-size: 28px;
}

.keyword-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.keyword-card {
  background: var(--card);
  border: 1px solid #eef2f7;
  border-radius: 12px;
  padding: 24px;
  text-align: left;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.keyword-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform 0.3s;
  transform-origin: top;
}

.keyword-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 90, 168, 0.12);
  border-color: var(--primary-light);
}

.keyword-card:hover::before {
  transform: scaleY(1);
}

.kw-icon {
  font-size: 32px;
  margin-bottom: 4px;
}

.keyword-card strong {
  font-size: 18px;
  color: var(--ink);
  font-weight: 900;
}

.kw-desc {
  font-size: 13px;
  color: var(--ink60);
  line-height: 1.5;
}

.kw-count {
  font-size: 11px;
  color: var(--accent);
  font-weight: 700;
  margin-top: 4px;
}

/* 카드별 색상 포인트 */
.keyword-card.kw-1::before { background: #E63946; }
.keyword-card.kw-2::before { background: #1E5AA8; }
.keyword-card.kw-3::before { background: #1E8449; }
.keyword-card.kw-4::before { background: #B7950B; }
.keyword-card.kw-5::before { background: #7D3C98; }
.keyword-card.kw-6::before { background: #C0392B; }

/* ==========================================
   반응형 (모바일)
   ========================================== */
@media (max-width: 900px) {
  .hero-main {
    grid-template-columns: 1fr;
    padding: 32px 20px;
  }
  
  .hero-title {
    font-size: 26px;
  }
  
  .keyword-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .keyword-grid {
    grid-template-columns: 1fr;
  }
}