:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3fb;
  --line: #d7dfef;
  --text: #182235;
  --muted: #5b6780;
  --primary: #173a77;
  --primary-dark: #102a56;
  --accent: #7aa7ff;
  --shadow: 0 18px 40px rgba(18, 33, 67, 0.12);
  --radius: 20px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(215, 223, 239, 0.85);
  height: 2.5cm;
}

.header-edge {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 2cm;
  width: auto;
  z-index: 25;
}

.header-left {
  left: 10px;
}

.header-right {
  right: 10px;
}

.inner-header {
  position: relative;
}

.topbar {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 1;
  min-width: 0;
}

.brand img {
  height: 2.2cm;
  width: auto;
}

.brand-kicker {
  display: block;
  font-size: 0.75rem;
  line-height: 1.1;
}

.brand strong {
  display: block;
  font-size: 1rem;
  line-height: 1.2;
}

.main-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  white-space: nowrap;
  margin-left: auto;
}

.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a.active {
  background: #e8eefb;
  color: var(--primary-dark);
}

.hero {
  padding-top: 80px;
  position: relative;
  min-height: 70vh;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding-bottom: 5cm;
}


.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  inset: 0 0 -2cm 0;
  transform: translateY(1cm);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transform: translateY(-3cm);
}

.hero-overlay {
  background: linear-gradient(100deg, rgba(12, 28, 58, 0.88), rgba(17, 41, 88, 0.62));
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #fff;
  padding: 84px 0;
  max-width: 760px;
  transform: translateY(2.5cm);  
}

.eyebrow,
.section-label,
.mini-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

.eyebrow {
  color: #c9d9ff;
  margin-bottom: 16px;
}

.hero h1,
.page-hero h1,
.section h2,
.document-card h2,
.highlight-box h3,
.content-card h2,
.schedule-day h2,
.info-card h3,
.topic-card h3 {
  font-family: "Playfair Display", Georgia, serif;
  line-height: 1.1;
}

.hero h1 {
  font-size: clamp(2.7rem, 7vw, 5rem);
  margin: 0 0 18px;
}

.hero-text {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 30px;
}

.hero-meta span {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.92rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: #ffffff;
  color: var(--primary-dark);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section {
  padding: 84px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(238, 243, 251, 0.8), rgba(245, 247, 251, 0.6));
}

.section-label {
  color: var(--primary);
  margin-bottom: 14px;
}

.section h2,
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin: 0 0 18px;
  color: var(--primary-dark);
}

.two-col,
.narrow-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
  gap: 28px;
  align-items: start;
}

.info-card,
.topic-card,
.highlight-box,
.content-card,
.document-card,
.schedule-day {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-card,
.content-card {
  padding: 28px;
}

.info-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.4rem;
}

.topic-grid,
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.topic-card,
.highlight-box {
  padding: 26px;
  background: #cfdcf3;
  border: 3px solid #9fb3d9;
  border-radius: 20px;
}

.topic-card h3,
.highlight-box h3 {
  margin-top: 0;
  font-size: 1.35rem;
  color: var(--primary-dark);
}

.mini-label {
  color: var(--primary);
  margin-bottom: 12px;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--primary);
  font-weight: 700;
}

.page-main {
  min-height: 70vh;
}

.page-hero.slim {
  padding: 72px 0 24px;
}

.page-intro {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.04rem;
}

.document-card {
  padding: 28px;
}

.document-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.pdf-frame {
  width: 100%;
  height: 950px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.styled-list {
  padding-left: 20px;
  margin: 16px 0 0;
}

.emphasis-card {
  background: linear-gradient(180deg, #16376f, #102a56);
  color: #ffffff;
  border-color: transparent;
}

.date-item {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.date-item:last-child {
  border-bottom: 0;
}

.schedule-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.schedule-day {
  padding: 28px;
}

.schedule-row {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.schedule-row:first-of-type {
  border-top: 0;
}

.schedule-row span {
  font-weight: 700;
  color: var(--primary);
}

.site-footer {
  background: #0f1d38;
  color: #dce5f8;
  padding: 34px 0;
  margin-top: 24px;
}

.footer-wrap {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 1100px) {
  .header-edge {
    display: none;
  }
}

@media (max-width: 980px) {
  .topbar,
  .document-header,
  .two-col,
  .narrow-grid,
  .schedule-card {
    grid-template-columns: 1fr;
    display: grid;
  }

  .topbar {
    padding: 18px 0;
  }

  .main-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .topic-grid,
  .highlight-grid {
    grid-template-columns: 1fr;
  }

  .pdf-frame {
    height: 700px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    min-height: 78vh;
  }

  .hero-content {
    padding: 54px 0;
  }

  .hero-actions,
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
  }

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

.registration-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.registration-side {
  position: sticky;
  top: 120px;
  background: #16376f;
  color: #ffffff;
  padding: 28px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.registration-side h3 {
  color: #ffffff;
}

.registration-side p,
.registration-side li {
  color: rgba(255, 255, 255, 0.92);
}

.registration-side a {
  color: #d6e4ff;
}

.registration-form-wrap {
  position: relative;
  transform: translateY(-2cm);
  padding: 20px;
  background: #7a254e;
  border-radius: 20px;
  box-shadow: var(--shadow);
  min-height: 18cm;
}

.registration-section {
  background: #3e5559;
}

.google-form {
  display: block;
  width: 100%;
  min-height: 18cm;
  border: 0;
  border-radius: 16px;
  background: #dfe8f7;
}

.page-hero.slim {
  position: relative;
  background-image: url("../images/band_img.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 72px 0 32px;
  border-bottom: 1px solid var(--line);
}

.page-hero.slim::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(18, 33, 67, 0.55);
}

.page-hero.slim .container {
  position: relative;
  z-index: 2;
}

.page-hero.slim h1,
.page-hero.slim .eyebrow,
.page-hero.slim .page-intro {
  color: #ffffff;
}

.page-hero.slim h1 {
  color: var(--primary-dark);
}

.page-hero.slim .page-intro {
  color: var(--muted);
}




.hero-content h2,
.hero-content .hero-text {
  color: #ffffff !important;
  text-shadow:
    -10px 0 14px rgba(0, 0, 0, 0.95),
    -5px 0 8px rgba(0, 0, 0, 0.75),
    -2px 0 3px rgba(0, 0, 0, 0.55),
    1px 1px 0 rgba(255, 255, 255, 0.22),
    2px 2px 0 rgba(255, 255, 255, 0.10);
  filter: drop-shadow(-3px 0 3px rgba(0, 0, 0, 0.55));
}


.about-section {
  background: #dce0c1;
}

.about-section .two-col > div {
  background: #a0aae8;
  border-radius: 20px;
  padding: 28px;
  border: 1px solid #d7dfef;
}

.about-section .info-card {
  background: #dbe4f5;
  border: 1px solid #aebedc;
  border-radius: 20px;
  padding: 28px;
}

.section.alt.topics-section {
  background: linear-gradient(180deg, #dce0c1 10%, #5f739c 100%);
}

.highlight-section {
  background: #5f739c;
}

.section.alt.topics-section .topic-card {
  background: #ceeff0;
  border: 3px solid #aebedc;
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.topic-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 44px rgba(18,33,67,0.16);
}

@media (max-width: 980px) {
  .registration-layout {
    grid-template-columns: 1fr;
  }

  .registration-side {
    position: static;
  }

  .google-form {
    min-height: 1200px;
  }
}


```