:root {
  --navy: #073b55;
  --navy-deep: #032b40;
  --ocean: #087e9c;
  --aqua: #25c0bd;
  --coral: #ff725e;
  --sand: #f7f3ea;
  --paper: #fffefa;
  --ink: #102f3d;
  --muted: #607781;
  --line: #dce7e8;
  --shadow: 0 24px 70px rgba(3, 43, 64, .12);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "DM Sans", sans-serif; font-size: 16px; line-height: 1.65; }
button, input, select { font: inherit; }
a { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, .brand { font-family: "Manrope", sans-serif; }

.site-header { position: absolute; z-index: 10; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; padding: 18px clamp(18px, 4vw, 62px); color: #fff; }
.brand { display: flex; align-items: center; gap: 15px; padding: 8px 16px 8px 10px; border: 1px solid rgba(255,255,255,.2); border-radius: 16px; color: #fff; background: rgba(2,31,46,.72); box-shadow: 0 10px 28px rgba(0,0,0,.18); backdrop-filter: blur(12px); text-decoration: none; font-weight: 800; text-shadow: 0 2px 8px rgba(0,0,0,.55); }
.brand-logo { width: 148px; height: 48px; object-fit: contain; object-position: left center; filter: drop-shadow(0 3px 8px rgba(0,0,0,.45)); }
nav { display: flex; align-items: center; gap: 8px; padding: 7px; border: 1px solid rgba(255,255,255,.22); border-radius: 999px; background: rgba(2,31,46,.68); box-shadow: 0 10px 28px rgba(0,0,0,.18); backdrop-filter: blur(12px); }
nav a { padding: 9px 14px; border-radius: 999px; color: #fff; text-decoration: none; font-weight: 700; font-size: .92rem; text-shadow: 0 2px 7px rgba(0,0,0,.6); }
nav a:hover { background: rgba(255,255,255,.14); }
.nav-cta { padding: 10px 18px; border: 1px solid rgba(255,255,255,.72); background: rgba(255,255,255,.1); }

.hero { position: relative; min-height: 760px; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero-image, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; }
.hero-overlay { background: linear-gradient(90deg, rgba(2,35,51,.9) 0%, rgba(2,43,60,.62) 43%, rgba(2,43,60,.12) 72%), linear-gradient(0deg, rgba(1,34,48,.55), transparent 45%); }
.hero-content { position: relative; z-index: 2; width: min(720px, 90vw); padding: 100px 0 140px; margin-left: clamp(22px, 8vw, 126px); }
.eyebrow, .section-kicker { margin-bottom: 18px; color: var(--aqua); font-weight: 800; font-size: .78rem; letter-spacing: .18em; }
.hero h1 { max-width: 700px; margin-bottom: 24px; font-size: clamp(3rem, 6vw, 5.5rem); line-height: 1.02; letter-spacing: -.055em; }
.hero h1 em { color: #8ce6df; font-family: Georgia, serif; font-weight: 400; }
.hero-copy { max-width: 610px; color: rgba(255,255,255,.88); font-size: 1.08rem; line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 22px; border: 0; border-radius: 999px; text-decoration: none; font-weight: 700; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #073b55; background: #fff; }
.button-ghost { color: #fff; border: 1px solid rgba(255,255,255,.5); background: rgba(255,255,255,.08); backdrop-filter: blur(8px); }
.hero-facts { position: absolute; z-index: 3; right: clamp(22px, 5vw, 74px); bottom: 34px; left: clamp(22px, 5vw, 74px); display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.35); padding-top: 24px; }
.hero-facts div { display: grid; gap: 3px; }
.hero-facts span { color: rgba(255,255,255,.65); font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; }
.hero-facts strong { font-size: .96rem; }

.official-banner-section { padding: 92px clamp(22px, 8vw, 126px) 105px; color: #fff; background: #021f2e; }
.official-banner-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 8vw; align-items: end; margin-bottom: 38px; }
.official-banner-heading h2 { margin: 0; color: #fff; font-size: clamp(2rem, 3.7vw, 3.5rem); line-height: 1.12; letter-spacing: -.045em; }
.official-banner-heading > p { max-width: 470px; margin: 0 0 6px; color: rgba(255,255,255,.7); font-size: 1.04rem; }
.official-banner-heading > p strong { color: #fff; }
.official-banner-frame { position: relative; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: 28px; box-shadow: 0 30px 90px rgba(0,0,0,.34); background: #073b55; }
.official-banner-frame::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); pointer-events: none; }
.official-banner-frame img { display: block; width: 100%; height: auto; }

.section { padding: 100px clamp(22px, 8vw, 126px); }
.intro-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 10vw; align-items: end; }
.intro-grid h2, .section-heading h2, .experience-section h2, .registration-copy h2 { margin-bottom: 0; color: var(--navy); font-size: clamp(2rem, 3.8vw, 3.6rem); line-height: 1.15; letter-spacing: -.04em; }
.lead { margin: 0; color: var(--muted); font-size: 1.12rem; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 44px; }
.section-heading > p { max-width: 440px; margin-bottom: 4px; color: var(--muted); }

.route-section { background: #f2f8f7; }
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); position: relative; }
.timeline::before { content: ""; position: absolute; top: 24px; left: 25px; right: 25px; height: 1px; background: #aacdcc; }
.timeline article { position: relative; z-index: 1; display: grid; gap: 25px; }
.route-number { display: grid; place-items: center; width: 49px; height: 49px; border: 1px solid #91bfbe; border-radius: 50%; color: var(--ocean); background: #f2f8f7; font-weight: 800; font-size: .8rem; }
.route-final .route-number { color: #fff; background: var(--coral); border-color: var(--coral); box-shadow: 0 10px 25px rgba(255,114,94,.25); }
.timeline h3 { margin-bottom: 5px; font-size: 1.08rem; }
.timeline p { margin-bottom: 0; color: var(--muted); font-size: .88rem; }
.timeline strong { color: var(--ocean); font-size: .84rem; }

.hotel-section { color: #fff; background: var(--navy-deep); }
.section-heading.light h2 { color: #fff; }
.section-heading.light > p { color: rgba(255,255,255,.65); }
.room-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.room-card { min-height: 245px; display: flex; flex-direction: column; justify-content: space-between; padding: 25px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: rgba(255,255,255,.055); transition: border-color .2s, transform .2s; }
.room-card:hover { transform: translateY(-4px); border-color: var(--aqua); }
.room-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; color: var(--aqua); background: rgba(37,192,189,.12); }
.room-capacity { margin-bottom: 5px; color: var(--aqua); font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.room-card h3 { margin-bottom: 0; font-size: 1.2rem; }
.room-price { margin-bottom: 0; font-size: 1.35rem; font-weight: 800; }
.room-price span { display: block; color: rgba(255,255,255,.55); font-size: .75rem; font-weight: 500; }

.experience-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 18px; background: var(--sand); }
.perks-card, .activities { padding: clamp(30px, 4vw, 58px); border-radius: 28px; }
.perks-card { color: #fff; background: var(--coral); }
.perks-card .section-kicker { color: #ffe8e3; }
.perks-card h2 { color: #fff; }
.perks-card ul { margin: 32px 0 0; padding: 0; list-style: none; }
.perks-card li { padding: 15px 0; border-top: 1px solid rgba(255,255,255,.3); font-weight: 600; }
.perks-card li::before { content: "✓"; margin-right: 12px; }
.activities { border: 1px solid #dfded8; background: var(--paper); }
.activity-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.activity-tags span { padding: 10px 16px; border: 1px solid #a9cccc; border-radius: 999px; color: var(--navy); font-size: .9rem; font-weight: 700; }
.muted { margin: 25px 0 0; color: var(--muted); font-size: .9rem; }

.registration-section { display: grid; grid-template-columns: minmax(270px, .75fr) minmax(0, 1.25fr); gap: clamp(50px, 8vw, 120px); padding: 110px clamp(22px, 8vw, 126px); background: #fff; }
.registration-copy { align-self: start; position: sticky; top: 30px; }
.registration-copy > p:not(.section-kicker) { margin-top: 24px; color: var(--muted); font-size: 1.05rem; }
.secure-note { display: flex; gap: 13px; margin-top: 35px; padding: 20px; border-radius: 16px; color: var(--navy); background: #edf8f6; }
.secure-note > span { display: grid; place-items: center; flex: 0 0 30px; height: 30px; border-radius: 50%; color: #fff; background: var(--aqua); }
.secure-note p { margin: 0; font-size: .88rem; line-height: 1.5; }
.registration-form { padding: clamp(24px, 4vw, 48px); border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); background: var(--paper); }
.form-section-title { display: flex; gap: 13px; align-items: center; margin: 38px 0 20px; }
.form-section-title:first-of-type { margin-top: 0; }
.form-section-title > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; color: #fff; background: var(--navy); font-size: .76rem; font-weight: 800; }
.form-section-title h3, .form-section-title p { margin: 0; }
.form-section-title h3 { color: var(--navy); font-size: 1.05rem; }
.form-section-title p { color: var(--muted); font-size: .8rem; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field-wide { grid-column: 1 / -1; }
.field > span { color: var(--navy); font-size: .86rem; font-weight: 700; }
.field input, .field select { width: 100%; min-height: 51px; padding: 12px 14px; border: 1px solid #cad9dc; border-radius: 11px; color: var(--ink); outline: none; background: #fff; }
.field input:focus, .field select:focus { border-color: var(--ocean); box-shadow: 0 0 0 3px rgba(8,126,156,.12); }
.members-list { display: grid; gap: 10px; }
.participant-activity-box { margin-top: 20px; padding: 20px; border: 1px solid #bcdad8; border-radius: 15px; background: #f0f9f8; }
.activity-box-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 14px; color: var(--navy); }
.activity-box-heading span { color: var(--muted); font-size: .78rem; }
.activity-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.activity-check { display: flex; align-items: flex-start; gap: 11px; padding: 14px; border: 1px solid #c9dfdf; border-radius: 12px; background: #fff; cursor: pointer; }
.activity-check:has(input:checked) { border-color: var(--ocean); box-shadow: 0 0 0 2px rgba(8,126,156,.1); }
.activity-check input, .member-activity-options input { width: 18px; height: 18px; margin: 2px 0 0; flex: 0 0 auto; accent-color: var(--ocean); }
.activity-check span { display: grid; }
.activity-check strong { color: var(--navy); font-size: .88rem; }
.activity-check small { color: var(--muted); font-size: .75rem; line-height: 1.4; }
.activity-cost-info { margin: 13px 0 0; color: var(--ocean); font-size: .78rem; font-weight: 600; }
.member-row { display: grid; gap: 11px; padding: 14px; border: 1px solid #d5e2e3; border-radius: 14px; background: #f8fbfb; }
.member-main { display: grid; grid-template-columns: 1fr 120px 42px; gap: 10px; }
.member-main input, .member-main select { min-width: 0; min-height: 47px; padding: 10px 12px; border: 1px solid #cad9dc; border-radius: 10px; background: #fff; }
.member-activity-title { color: var(--muted); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.member-activity-options { display: flex; flex-wrap: wrap; gap: 8px; }
.member-activity-options label { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid #c9dfdf; border-radius: 999px; color: var(--navy); background: #fff; cursor: pointer; font-size: .8rem; font-weight: 700; }
.member-activity-options label:has(input:checked) { color: #fff; border-color: var(--ocean); background: var(--ocean); }
.remove-member { border: 0; border-radius: 10px; color: #b83d31; background: #fff0ee; cursor: pointer; font-size: 1.2rem; }
.add-member { margin-top: 12px; padding: 10px 0; border: 0; color: var(--ocean); background: none; font-weight: 700; cursor: pointer; }
.estimate-card { display: flex; justify-content: space-between; align-items: center; margin-top: 28px; padding: 23px; border-radius: 16px; color: #fff; background: var(--navy); }
.estimate-card div { display: grid; }
.estimate-card span { font-size: .82rem; color: rgba(255,255,255,.7); }
.estimate-card strong { font-size: 1.8rem; font-family: "Manrope", sans-serif; }
.estimate-card small { color: #8ce6df; }
.estimate-icon { font-size: 2.5rem !important; color: var(--aqua) !important; }
.cost-note { margin: 10px 2px 24px; color: var(--muted); font-size: .78rem; }
.agreement { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: .85rem; }
.agreement input { width: 17px; height: 17px; margin-top: 3px; accent-color: var(--ocean); }
.button-submit { width: 100%; margin-top: 22px; padding: 16px 22px; color: #fff; border-radius: 12px; background: var(--coral); box-shadow: 0 12px 28px rgba(255,114,94,.23); }
.button-submit span { font-size: 1.25rem; }
.alert { margin-bottom: 24px; padding: 16px 18px; border-radius: 12px; }
.alert-error { color: #8d2920; background: #fff0ee; }
.alert ul { margin: 7px 0 0; padding-left: 20px; }

footer { display: flex; justify-content: space-between; align-items: center; padding: 35px clamp(22px, 8vw, 126px); color: rgba(255,255,255,.72); background: #021f2e; font-size: .85rem; }
footer div { display: grid; }
footer strong { color: #fff; font-family: "Manrope", sans-serif; }
footer p { margin: 0; }
.footer-brand { display: flex; align-items: center; gap: 18px; }
.footer-brand > img { width: 112px; height: 38px; object-fit: contain; object-position: left center; }
.footer-brand > div { display: grid; }

.success-page, .login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(135deg, #032b40, #087e9c); }
.message-card, .login-card { width: min(560px, 100%); padding: 45px; border-radius: 26px; background: #fff; box-shadow: var(--shadow); }
.message-card .success-icon { display: grid; place-items: center; width: 62px; height: 62px; border-radius: 50%; color: #fff; background: var(--aqua); font-size: 1.8rem; }
.message-card h1, .login-card h1 { margin: 22px 0 12px; color: var(--navy); line-height: 1.15; }
.registration-code { margin: 25px 0; padding: 16px; border: 1px dashed #9dbabc; border-radius: 12px; text-align: center; background: #f1f8f7; }
.registration-code strong { display: block; color: var(--ocean); font-size: 1.45rem; letter-spacing: .06em; }

@media (max-width: 950px) {
  nav a:not(.nav-cta) { display: none; }
  .hero { min-height: 720px; }
  .room-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr; gap: 18px; }
  .timeline::before { top: 24px; bottom: 24px; left: 24px; width: 1px; height: auto; }
  .timeline article { grid-template-columns: 49px 1fr; gap: 18px; }
  .intro-grid, .registration-section { grid-template-columns: 1fr; }
  .official-banner-heading { grid-template-columns: 1fr; gap: 20px; }
  .registration-copy { position: static; }
}

@media (max-width: 650px) {
  .site-header { padding: 16px 18px; }
  .brand > span:last-child { display: none; }
  .brand { padding: 7px 10px; border-radius: 13px; }
  .brand-logo { width: 112px; height: 38px; }
  nav { padding: 5px; }
  nav a { padding: 8px 11px; }
  .hero { min-height: 790px; align-items: start; }
  .hero-content { margin-left: 22px; padding-top: 130px; }
  .hero h1 { font-size: 3.25rem; }
  .hero-actions { align-items: stretch; flex-direction: column; width: min(100%, 310px); }
  .hero-facts { grid-template-columns: 1fr; gap: 11px; bottom: 25px; padding-top: 16px; }
  .hero-facts div { grid-template-columns: 80px 1fr; }
  .hero-facts span { font-size: .7rem; }
  .section { padding-top: 72px; padding-bottom: 72px; }
  .official-banner-section { padding: 68px 18px 75px; }
  .official-banner-frame { border-radius: 16px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 18px; }
  .room-grid, .experience-section, .field-grid { grid-template-columns: 1fr; }
  .room-card { min-height: 200px; }
  .field-wide { grid-column: auto; }
  .registration-section { padding-top: 75px; padding-bottom: 75px; }
  .registration-form { padding: 22px 18px; border-radius: 20px; }
  .activity-choice-grid { grid-template-columns: 1fr; }
  .activity-box-heading { align-items: flex-start; flex-direction: column; gap: 2px; }
  .member-main { grid-template-columns: 1fr 90px 40px; }
  footer { align-items: flex-start; flex-direction: column; gap: 20px; }
  .footer-brand { align-items: flex-start; flex-direction: column; gap: 10px; }
}