/* ============================================
   9월 개강 설명회 랜딩페이지 전용 스타일
   - 아이스 블루 + 딥 네이비 + 홀로그램
   ============================================ */

:root {
  --bg-ice:      #EEF3FB;
  --bg-white:    #FFFFFF;
  --navy:        #1B2A5B;
  --blue:        #3B6EA5;
  --holo-1:      #7B9CE8;
  --holo-2:      #A78BDA;
  --gold:        #C9A24B;
  --gold-light:  #E5C877;
  --text-body:   #4A5268;
  --text-mute:   #8A93A6;
  --border:      #DDE4EF;
}

/* ===== 홀로그램 배경 심볼 (SVG 인라인) ===== */
.holo-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.holo-symbol {
  position: absolute;
  font-family: 'Times New Roman', serif;
  font-weight: 300;
  background: linear-gradient(135deg, var(--holo-1), var(--holo-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.08;
  user-select: none;
}

/* ===== HERO ===== */
.sept-hero {
  position: relative;
  padding: 3.5rem 0 3rem;
  background: linear-gradient(180deg, var(--bg-ice) 0%, #F5F8FC 100%);
  overflow: hidden;
}

.sept-hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-top-badge {
  display: inline-block;
  padding: 0.45rem 1.1rem;
  background: var(--navy);
  color: white;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.03em;
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-size: clamp(1.6rem, 5.5vw, 2.4rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.3;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.hero-headline .hl-strong {
  background: linear-gradient(135deg, var(--holo-1), var(--holo-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0 0 2rem;
}

.hero-target-line {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--navy);
  font-weight: 500;
}

/* ===== 공통 섹션 ===== */
.sept-section {
  position: relative;
  padding: 3.5rem 0;
  overflow: hidden;
}

.sept-section.bg-white { background: white; }
.sept-section.bg-ice { background: var(--bg-ice); }

.sept-section .container {
  position: relative;
  z-index: 1;
}

.sept-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.sept-title {
  font-size: clamp(1.4rem, 4vw, 1.85rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.35;
  margin: 0 0 1.5rem;
  letter-spacing: -0.02em;
}

/* ===== 785명 실적 ===== */
.proof-785 {
  text-align: center;
}

.proof-image {
  width: 100%;
  max-width: 560px;
  margin: 0 auto 2rem;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(27, 42, 91, 0.12);
}

.proof-image img {
  width: 100%;
  display: block;
}

.proof-number-wrap {
  margin: 1.5rem 0;
}

.proof-number {
  font-size: clamp(3.5rem, 12vw, 5.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  letter-spacing: -0.03em;
  display: block;
}

.proof-number-caption {
  font-size: 1rem;
  color: var(--text-body);
  margin-top: 0.5rem;
  font-weight: 500;
}

.proof-list {
  list-style: none;
  padding: 1.5rem;
  margin: 0 auto 1.5rem;
  max-width: 480px;
  background: var(--bg-ice);
  border-radius: 12px;
  text-align: left;
}

.proof-list li {
  font-size: 0.92rem;
  color: var(--text-body);
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.proof-list li:last-child { border-bottom: none; }

.proof-list .proof-name { font-weight: 500; color: var(--navy); }
.proof-list .proof-count { color: var(--blue); font-weight: 700; }

.proof-closing {
  font-size: 1.1rem;
  color: var(--navy);
  font-weight: 700;
  margin-top: 1.5rem;
}

/* ===== 자료집 특전 ===== */
.databook-card {
  padding: 2rem 1.75rem;
  background: linear-gradient(135deg, #FFF9EE 0%, #FFF5DE 100%);
  border: 2px solid var(--gold-light);
  border-radius: 16px;
  position: relative;
}

.databook-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: var(--gold);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.databook-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 1.25rem;
  line-height: 1.3;
}

.databook-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}

.databook-list li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.5;
}

.databook-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0.5rem;
  color: var(--gold);
  font-weight: 800;
}

.databook-note {
  font-size: 0.82rem;
  color: var(--text-mute);
  padding-top: 1rem;
  border-top: 1px solid rgba(201, 162, 75, 0.3);
  margin: 0;
}

/* ===== 커리큘럼 4블록 ===== */
.curri-grid {
  display: grid;
  gap: 1.25rem;
}

.curri-card {
  padding: 1.75rem 1.5rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(27, 42, 91, 0.04);
}

.curri-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--holo-1);
  display: inline-block;
}

.curri-card p {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.7;
  margin: 0 0 0.75rem;
}

.curri-card p:last-child { margin-bottom: 0; }

.curri-card .em-note {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.35rem 0.75rem;
  background: var(--bg-ice);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--navy);
  font-weight: 500;
}

/* 커리큘럼 표 */
.curri-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 0.75rem;
  font-size: 0.9rem;
}

.curri-table thead {
  background: var(--navy);
  color: white;
}

.curri-table th,
.curri-table td {
  padding: 0.7rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.curri-table th {
  font-weight: 600;
  font-size: 0.85rem;
}

.curri-table td {
  color: var(--text-body);
}

.curri-table td:first-child {
  font-weight: 600;
  color: var(--navy);
}

/* ===== 대표 소개 ===== */
.ceo-block {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  padding: 1.75rem;
  background: white;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.ceo-photo {
  flex-shrink: 0;
  width: 110px;
  height: 110px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-ice);
}

.ceo-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ceo-info h3 {
  font-size: 1.05rem;
  color: var(--text-body);
  font-weight: 500;
  margin: 0 0 0.35rem;
}

.ceo-info .ceo-name-big {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 0.75rem;
}

.ceo-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ceo-info li {
  font-size: 0.85rem;
  color: var(--text-body);
  padding: 0.2rem 0 0.2rem 0.9rem;
  position: relative;
  line-height: 1.5;
}

.ceo-info li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
}

/* ===== 교재 ===== */
.textbook-block {
  text-align: center;
}

.textbook-photo {
  max-width: 400px;
  margin: 0 auto 1.5rem;
}

.textbook-photo img {
  width: 100%;
  display: block;
  border-radius: 12px;
}

.textbook-caption {
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0;
}

.textbook-caption strong {
  color: var(--navy);
  font-weight: 700;
}

/* ===== 설명회 정보 ===== */
.seminar-info-card {
  padding: 2rem 1.75rem;
  background: var(--navy);
  color: white;
  border-radius: 16px;
}

.seminar-info-card .info-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 0 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.seminar-schedule-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.seminar-schedule-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0;
  font-size: 1rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
}

.seminar-schedule-list li:last-child { border-bottom: none; }

.session-num {
  padding: 0.25rem 0.6rem;
  background: var(--gold);
  color: var(--navy);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 6px;
  flex-shrink: 0;
}

.seminar-meta {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 1rem;
}

.seminar-meta strong {
  color: white;
  font-weight: 600;
}

.seminar-notice {
  padding: 0.85rem 1rem;
  background: rgba(201, 162, 75, 0.15);
  border-left: 3px solid var(--gold);
  border-radius: 6px;
  font-size: 0.88rem;
  color: white;
  margin: 0;
}

/* ===== 최종 CTA ===== */
.final-cta-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--navy) 0%, #2a3d75 100%);
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.final-cta-headline {
  font-size: clamp(1.4rem, 4.5vw, 1.9rem);
  font-weight: 800;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.final-cta-sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 2rem;
}

.big-cta-btn {
  display: inline-block;
  padding: 1.25rem 3rem;
  background: var(--gold);
  color: var(--navy);
  font-size: 1.15rem;
  font-weight: 800;
  text-decoration: none;
  border-radius: 14px;
  transition: all 0.2s;
  box-shadow: 0 8px 24px rgba(201, 162, 75, 0.35);
  letter-spacing: -0.01em;
}

.big-cta-btn:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201, 162, 75, 0.45);
}

/* ===== 플로팅 예약 버튼 ===== */
.reserve-floating {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.85rem 1rem;
  background: white;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  z-index: 100;
  padding-bottom: calc(0.85rem + env(safe-area-inset-bottom, 0px));
}

.reserve-floating-btn {
  display: block;
  max-width: 500px;
  margin: 0 auto;
  padding: 1rem;
  background: var(--navy);
  color: white;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  border-radius: 12px;
  transition: background 0.2s;
}

.reserve-floating-btn:hover { background: #2a3d75; }

/* 최종 CTA 섹션에서는 플로팅 숨김 (버튼 중복 방지) */
.reserve-floating.hidden {
  transform: translateY(100%);
  transition: transform 0.3s;
}

/* 본문 하단에 플로팅 공간 확보 */
main { padding-bottom: 80px; }

/* ===== 반응형 ===== */
@media (max-width: 480px) {
  .sept-hero { padding: 2.5rem 0 2rem; }
  .sept-section { padding: 2.75rem 0; }
  .final-cta-section { padding: 3rem 0; }

  .ceo-block {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem 1.25rem;
  }

  .ceo-info li {
    text-align: left;
    display: inline-block;
  }

  .curri-card { padding: 1.5rem 1.25rem; }

  .databook-card { padding: 1.5rem 1.25rem; }

  .databook-title { font-size: 1.15rem; }

  .seminar-info-card { padding: 1.5rem 1.25rem; }

  .big-cta-btn { padding: 1.1rem 2rem; font-size: 1.05rem; }
}