*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy-dark:   #0e1c30;
  --navy:        #1a3354;
  --navy-mid:    #254878;
  --accent:      #e05f2c;
  --accent-warm: #f0864e;
  --text:        #1c1c1c;
  --text-muted:  #4a4a4a;
  --bg:          #f8f7f4;
  --bg-alt:      #edf0f7;
  --white:       #ffffff;
  --nav-h:       60px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

/* ── Nav ────────────────────────────────────────────── */

#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(14, 28, 48, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: 'Inter', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent-warm);
  letter-spacing: 0.03em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

/* ── Hero ───────────────────────────────────────────── */

#hero {
  min-height: calc(90vh - var(--nav-h));
  background:
    linear-gradient(to bottom, rgba(14, 28, 48, 0.82) 0%, rgba(14, 28, 48, 0.55) 50%, rgba(14, 28, 48, 0.75) 100%),
    url('hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
}

.hero-inner {
  max-width: 720px;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 20px;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}

#hero h1 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--accent);
  color: var(--navy-dark);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: var(--accent-warm);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-instagram, .nav-instagram:visited {
  display: flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-instagram:hover {
  color: var(--white);
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-register {
  padding: 6px 16px;
  background: var(--accent);
  color: var(--white) !important;
  border-radius: 2px;
  transition: background 0.2s !important;
}

.nav-register:hover {
  background: var(--accent-warm);
  color: var(--white) !important;
}

/* ── Sections ───────────────────────────────────────── */

section {
  padding: 88px 24px;
}

.section-alt {
  background: var(--bg-alt);
}

.container {
  max-width: 760px;
  margin: 0 auto;
}

h2 {
  font-family: 'Inter', sans-serif;
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--navy-dark);
  margin-bottom: 28px;
  line-height: 1.2;
}

h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin-top: 14px;
}

p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

a:visited {
  color: var(--accent);
}

a.btn, a.btn:visited,
a.btn-outline, a.btn-outline:visited,
a.nav-register, a.nav-register:visited {
  color: var(--white);
  text-decoration: none;
}

a:hover {
  color: var(--accent-warm);
}

/* ── Schedule ───────────────────────────────────────── */

.schedule-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 4px;
  overflow: hidden;
}

.schedule-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.schedule-item:last-child {
  border-bottom: none;
}

.schedule-time {
  font-family: 'Inter', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  min-width: 90px;
}

.schedule-desc {
  font-size: 1rem;
  color: var(--text-muted);
}

/* ── Details grid ───────────────────────────────────── */

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.detail-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.08);
  border-top: 3px solid var(--accent);
  border-radius: 2px;
}

.detail-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 8px;
}

.detail-value {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.5;
}

/* ── Highlight box ──────────────────────────────────── */

.highlight-box {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  padding: 20px 28px;
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: 2px;
}

.highlight-box p {
  margin: 0;
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy-dark);
}

.highlight-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

/* ── Footer ─────────────────────────────────────────── */

footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}