/* 퀀트라엑스 / 지비아 공용 사이트 스타일 — 모든 페이지에서 공유 */
:root {
  --bg: #030a1a;
  --bg-elevated: #0f1628;
  --bg-card: #11192a;
  --border: #232733;
  --fg: #e5eaf0;
  --muted: #9aa3b2;
  --brand: #6fafc7;
  --brand-hover: #8bc2d6;
  --accent: #e2ad30;
  --success: #7bc47f;
  --danger: #d97878;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Pretendard, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  color: var(--brand-hover);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(3, 10, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: 1.5px;
  font-size: 15px;
  color: var(--fg);
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.menu {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.menu a {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
}

.menu a:hover,
.menu a.active {
  color: var(--brand);
}

.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Language switcher */
.lang-switch {
  display: flex;
  gap: 2px;
  align-items: center;
  padding-left: 12px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}

.lang-switch a {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  padding: 5px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.lang-switch a:hover {
  color: var(--fg);
  background: var(--bg-card);
}

.lang-switch a.active {
  color: var(--brand);
  background: rgba(111, 175, 199, 0.12);
}

@media (max-width: 768px) {
  .lang-switch {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: 12px 0 0;
    margin: 8px 0 0;
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* Auth widget (로그인/회원가입/계정) */
.auth-widget {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 12px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}

.auth-widget .auth-link {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.auth-widget .auth-signup-btn {
  padding: 6px 12px;
  font-size: 13px;
}

.auth-widget .auth-user {
  font-size: 13px;
  font-weight: 700;
  color: var(--fg);
  white-space: nowrap;
}

.auth-widget .auth-logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}

.auth-widget .auth-logout:hover {
  color: var(--fg);
  border-color: var(--brand);
}

@media (max-width: 768px) {
  .auth-widget {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: 12px 0 0;
    margin: 8px 0 0;
    justify-content: center;
    width: 100%;
  }
}

.auth-card {
  max-width: 420px;
  margin: 0 auto;
}

.auth-card.wide {
  max-width: 560px;
}

.auth-divider {
  margin: 20px 0;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.form-section {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.form-section:last-of-type {
  margin-bottom: 20px;
  padding-bottom: 0;
  border-bottom: none;
}

.form-section h3 {
  font-size: 15px;
  margin: 0 0 4px;
  color: var(--brand);
}

.form-section .form-section-desc {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 16px;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.chip-group input[type="checkbox"],
.chip-group input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.chip-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #171f33;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  margin-bottom: 0;
  transition: all 0.15s;
}

.chip-group input:checked + label {
  background: rgba(111, 175, 199, 0.15);
  border-color: var(--brand);
  color: var(--brand);
}

.chip-group input:focus-visible + label {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  cursor: pointer;
  padding: 8px;
  font-size: 24px;
  line-height: 1;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  font-family: inherit;
}

.btn:hover {
  border-color: var(--brand);
  color: var(--brand-hover);
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #00131c;
}

.btn-primary:hover {
  background: var(--brand-hover);
  border-color: var(--brand-hover);
  color: #00131c;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== Page hero (영상 배경) ===== */
.page-hero {
  position: relative;
  overflow: hidden;
  min-height: 46vh;
  display: flex;
  align-items: center;
}

.page-hero.hero-tall {
  min-height: 86vh;
}

.page-hero video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 10, 26, 0.35) 0%, rgba(3, 10, 26, 0.55) 45%, var(--bg) 100%);
  z-index: 1;
}

.page-hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.page-hero .kicker {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 13px;
  margin-bottom: 14px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.page-hero h1 {
  font-size: clamp(30px, 5.5vw, 52px);
  line-height: 1.15;
  margin: 0 0 18px;
  font-weight: 800;
  text-wrap: balance;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
}

.page-hero p {
  color: var(--fg);
  opacity: 0.92;
  font-size: clamp(15px, 2vw, 18px);
  max-width: 640px;
  margin: 0 0 32px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5);
}

.page-hero.hero-tall .container,
.page-hero.align-center {
  text-align: center;
}

.page-hero.align-center p {
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.page-hero.align-center .hero-actions {
  justify-content: center;
}

/* Sections */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.section-kicker {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.1em;
  font-size: 12px;
  margin-bottom: 10px;
}

.section h2 {
  font-size: 30px;
  margin: 0 0 12px;
  text-wrap: balance;
}

.section-desc {
  color: var(--muted);
  max-width: 680px;
  margin: 0 0 40px;
}

/* Grid & Cards */
.grid {
  display: grid;
  gap: 20px;
}

.grid.cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid.cols-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card-shot {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 16px;
  display: block;
  border: 1px solid var(--border);
}

.card-note {
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  opacity: 0.75;
}

/* Feature zigzag rows (image on one side, text on the other, alternating) */
.feature-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-row.reverse {
  flex-direction: row-reverse;
}

.feature-row .feature-media {
  flex: 1 1 46%;
  min-width: 0;
}

.feature-row .feature-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  display: block;
}

.feature-row .feature-body {
  flex: 1 1 54%;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-row .feature-body h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.feature-row .feature-body p {
  color: var(--muted);
  font-size: 14px;
}

.feature-row.feature-video-card {
  cursor: pointer;
}

@media (max-width: 768px) {
  .feature-row,
  .feature-row.reverse {
    flex-direction: column;
  }
  .feature-row .feature-media img {
    min-height: 220px;
  }
  .feature-row .feature-body {
    padding: 24px;
  }
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  background: #171f33;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 10px;
}

.badge-accent {
  background: rgba(226, 173, 48, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* Nav cards (홈 -> 카테고리 페이지 이동) */
.nav-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 220px;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  background: var(--bg-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.nav-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
}

.nav-card video,
.nav-card img.nav-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.nav-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 10, 26, 0.15) 0%, rgba(3, 10, 26, 0.92) 100%);
  z-index: 1;
}

.nav-card .nav-card-body {
  position: relative;
  z-index: 2;
}

.nav-card h3 {
  color: #fff;
  margin: 0 0 6px;
  font-size: 19px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.nav-card p {
  color: rgba(233, 242, 255, 0.85);
  margin: 0;
  font-size: 13px;
}

.nav-card .arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  color: #fff;
  font-size: 20px;
  opacity: 0.85;
}

/* Numbered method cards (전략빌더/매매선/예측봉/AI봇 등) */
.num-card .num {
  font-size: 40px;
  font-weight: 800;
  color: rgba(111, 175, 199, 0.28);
  line-height: 1;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.num-card .quote {
  color: var(--brand);
  font-weight: 700;
  margin: 0 0 10px;
}

/* Tag pills row (주식 · 선물 · 코인 · 글로벌 금융시장 등) */
.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.tag-row.center {
  justify-content: center;
}

/* Flow strip (전략 설계 → AI 분석 → 백테스트 → 자동 실행) */
.flow-strip {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  font-weight: 700;
  color: var(--fg);
  margin: 16px 0;
}

.flow-strip.center {
  justify-content: center;
}

.flow-strip .step {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 14px;
}

.flow-strip .arrow {
  color: var(--accent);
}

/* Highlight intro block (about.html 상단 소개 문단) */
.intro-block {
  max-width: 760px;
  margin: 0 auto 48px;
}

.intro-block p {
  margin: 0 0 14px;
  color: var(--fg);
}

.highlight {
  color: var(--brand);
  font-weight: 800;
  font-size: 18px;
  margin: 22px 0;
}

.intro-block .muted-note {
  color: var(--muted);
}

/* Closing Q&A list (about.html 하단) */
.qa-list {
  display: grid;
  gap: 14px;
  margin: 0 0 32px;
}

.qa-list .qa-item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  flex-wrap: wrap;
}

.qa-list .qa-item .q {
  color: var(--fg);
  font-weight: 700;
}

.qa-list .qa-item .a {
  color: var(--brand);
  font-weight: 800;
}

/* Concept box */
.concept-box {
  background: rgba(111, 175, 199, 0.08);
  border: 1px solid var(--brand);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 40px;
}

.concept-box h3 {
  margin: 0 0 16px;
}

.concept-box .grid {
  margin-top: 16px;
}

.concept-box strong.label {
  color: var(--brand);
  display: block;
  margin-bottom: 6px;
}

/* Real-demo inline video (실제 화면 증거 클립) */
.proof-clip {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 40px;
}

.proof-clip video,
.proof-clip img {
  width: 100%;
  display: block;
}

.proof-clip .proof-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--muted);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

/* Timeline */
.timeline {
  display: grid;
  gap: 18px;
}

.timeline .item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.dot {
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-radius: 50%;
  background: var(--brand);
  margin-top: 8px;
}

.timeline .item h4 {
  margin: 0 0 4px;
  font-size: 16px;
}

.timeline .item .meta {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

/* Pricing */
.pricing {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.price-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--bg-card);
}

.price-card.featured {
  border-color: var(--accent);
  background: rgba(226, 173, 48, 0.06);
}

.price-card .price {
  font-size: 30px;
  font-weight: 800;
  margin: 10px 0 4px;
}

.price-card .price .unit {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}

.price-card ul {
  margin: 16px 0 20px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.price-card ul li {
  margin-bottom: 6px;
}

/* Institutional pricing table */
.institutional-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.institutional-table th,
.institutional-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.institutional-table th {
  color: var(--muted);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.institutional-table td.price-cell {
  color: var(--accent);
  font-weight: 700;
  white-space: nowrap;
}

.table-scroll {
  overflow-x: auto;
}

/* Login/download-gated teaser cards */
.gated-card {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  background: var(--bg-card);
}

.gated-card .lock-icon {
  font-size: 28px;
  margin-bottom: 10px;
}

/* Video grid (기능소개 단일 영상 + 실제매매영상 그리드 공용) */
.video-card {
  padding: 0;
  overflow: hidden;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #05070d;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* Company info */
.info-row {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--muted);
}

.info-row strong {
  color: var(--fg);
  margin-right: 6px;
}

/* Growth metrics */
.metric-number {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  margin: 4px 0 6px;
  font-variant-numeric: tabular-nums;
}

/* Contact form */
form {
  display: grid;
  gap: 16px;
  max-width: 720px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 6px;
}

input, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--fg);
  font-size: 14px;
  font-family: inherit;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--brand);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.checkbox-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.checkbox-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--fg);
  cursor: pointer;
  margin-bottom: 0;
}

.checkbox-row input {
  width: auto;
}

#submit-status {
  color: var(--brand);
  font-size: 13px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--muted);
  font-size: 13px;
  margin-top: auto;
}

footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Feature video card + modal player */
.feature-video-card {
  cursor: pointer;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-video-card:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
}

.play-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  margin-left: 8px;
  vertical-align: middle;
  white-space: nowrap;
}

.feature-video-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(3, 10, 26, 0.92);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.feature-video-modal.open {
  display: flex;
}

.feature-video-modal-inner {
  position: relative;
  width: 100%;
  max-width: 960px;
  background: #000;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.feature-video-modal-inner video {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  background: #000;
}

.feature-video-close {
  position: absolute;
  top: -44px;
  right: 0;
  background: rgba(15, 22, 40, 0.85);
  border: 1px solid var(--border);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.feature-video-close:hover {
  border-color: var(--brand);
  color: var(--brand);
}

@media (max-width: 768px) {
  .feature-video-close {
    top: 8px;
    right: 8px;
    z-index: 2;
  }
}

/* Mobile screenshot carousel modal */
.carousel-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(3, 10, 26, 0.92);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.carousel-modal.open {
  display: flex;
}

.carousel-modal-inner {
  position: relative;
  width: 100%;
  max-width: 560px;
}

.carousel-viewport {
  position: relative;
  width: 100%;
  max-height: 80vh;
  aspect-ratio: 700 / 713;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
  flex: 0 0 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #05070d;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.carousel-slide.logo-slide img {
  width: 60%;
  height: 60%;
  object-fit: contain;
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(15, 22, 40, 0.85);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.carousel-nav:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.carousel-nav.prev { left: -8px; }
.carousel-nav.next { right: -8px; }

.carousel-dots {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 16px;
}

.carousel-dots .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  border: none;
}

.carousel-dots .dot.active {
  background: var(--brand);
  width: 18px;
  border-radius: 4px;
}

.carousel-close {
  position: absolute;
  top: -44px;
  right: 0;
  background: rgba(15, 22, 40, 0.85);
  border: 1px solid var(--border);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.carousel-close:hover {
  border-color: var(--brand);
  color: var(--brand);
}

@media (max-width: 480px) {
  .carousel-modal-inner {
    max-width: 260px;
  }

  .carousel-close {
    top: 8px;
    right: 8px;
    z-index: 3;
  }

  .carousel-nav.prev { left: 4px; }
  .carousel-nav.next { right: 4px; }
}

/* Background music toggle */
.bgm-toggle {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(15, 22, 40, 0.85);
  backdrop-filter: blur(6px);
  color: var(--fg);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.bgm-toggle:hover {
  border-color: var(--brand);
  transform: scale(1.06);
}

.bgm-toggle.playing {
  border-color: var(--brand);
  color: var(--brand);
}

@media (max-width: 768px) {
  .bgm-toggle {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
    font-size: 17px;
  }
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brand-hover);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .page-hero video, .nav-card video { display: none; }
}

/* Responsive nav */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(3, 10, 26, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 4px;
    z-index: 99;
    border-bottom: 1px solid var(--border);
  }

  .menu.show {
    display: flex;
  }

  .menu a {
    padding: 12px;
    text-align: center;
    border-radius: 8px;
  }

  .menu a:hover {
    background: var(--bg-card);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-hero {
    min-height: 40vh;
  }

  .page-hero.hero-tall {
    min-height: 70vh;
  }
}