:root {
    --ink: #102a43;
    --blue: #173f6b;
    --blue-2: #2f6fa5;
    --ice: #eaf3fa;
    --paper: #f5f8fb;
    --line: #d2deea;
    --muted: #61758a;
    --white: #fff;
    --green: #19734a;
    --red: #a33a3a;
    --shadow: 0 14px 35px rgba(13, 45, 75, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, Helvetica, sans-serif; line-height: 1.58; }
a { color: var(--blue-2); }
a:hover { color: var(--blue); }

.hero { min-height: 355px; position: relative; overflow: hidden; color: white; background: #061525 url("images/m1_skytrip_mario_weigand.jpg") 72% 49% / cover no-repeat; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,14,26,.96) 0%, rgba(4,19,34,.88) 34%, rgba(4,20,36,.48) 65%, rgba(3,14,26,.24) 100%); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.12), transparent 48%, rgba(0,0,0,.34)); }
.hero-space { display: none; }
.hero-content { position: relative; z-index: 2; width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 76px 0 92px; }
.hero-content h1 { max-width: 820px; margin: 8px 0 4px; font-size: clamp(2.2rem, 5vw, 4.35rem); line-height: 1.04; letter-spacing: -.035em; }
.hero-term { margin: 0; font-size: 1.25rem; color: #d7e9f8; }
.hero-credit { margin: 18px 0 0; font-size: .78rem; color: #d7e9f8; }
.hero-credit a { color: #fff; text-underline-offset: 3px; }
.eyebrow, .kicker { text-transform: uppercase; letter-spacing: .13em; font-weight: 700; font-size: .77rem; }
.eyebrow { color: #a9d7fa; }
.kicker { margin: 0 0 8px; color: var(--blue-2); }
.hero-menu { position: absolute; z-index: 3; left: 0; right: 0; bottom: 0; background: rgba(5,23,40,.83); backdrop-filter: blur(10px); border-top: 1px solid rgba(255,255,255,.16); }
.menu { width: min(1120px, calc(100% - 40px)); margin: 0 auto; display: flex; gap: 3px; overflow-x: auto; }
.menu a { color: #eaf6ff; text-decoration: none; padding: 17px 19px; white-space: nowrap; border-bottom: 3px solid transparent; }
.menu a:hover, .menu a.active { background: rgba(255,255,255,.08); border-bottom-color: #75c7ff; }

.page { width: min(1120px, calc(100% - 40px)); margin: 42px auto 70px; }
.panel, .topic-card, .availability { background: var(--white); border: 1px solid var(--line); border-radius: 17px; box-shadow: var(--shadow); }
.panel { padding: clamp(25px, 4vw, 44px); margin-bottom: 28px; }
.panel h2 { margin: 0 0 14px; color: var(--blue); font-size: clamp(1.55rem, 3vw, 2.2rem); line-height: 1.2; }
.panel h3, .topic-card h2, .availability h3 { color: var(--blue); }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(270px, .75fr); gap: 28px; align-items: stretch; }
.intro-grid .panel { height: 100%; }
.lead-panel { background: linear-gradient(145deg, #fff 55%, #eaf4fb); }
.facts { margin: 0; }
.facts div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.facts div:last-child { border-bottom: 0; }
.facts dt { font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 700; }
.facts dd { margin: 2px 0 0; font-weight: 700; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.button { display: inline-block; border: 0; border-radius: 9px; padding: 11px 17px; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.button.primary { color: white; background: var(--blue-2); }
.button.primary:hover { color: white; background: var(--blue); }
.button.secondary { color: var(--blue); background: var(--ice); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 17px; }
.steps > div { padding: 20px; border-radius: 12px; background: var(--ice); }
.steps span { display: block; color: var(--blue-2); font-size: 1.6rem; font-weight: 800; }
.steps h3 { margin: 5px 0; font-size: 1.05rem; }
.steps p { margin: 0; font-size: .93rem; }
.accent-panel { border-left: 6px solid var(--blue-2); }

.timeline { display: grid; grid-template-columns: 150px 1fr; border-top: 1px solid var(--line); }
.timeline > div { padding: 17px 10px; border-bottom: 1px solid var(--line); }
.timeline .date { font-weight: 800; color: var(--blue-2); }
.timeline h3, .timeline p { margin: 0; }
.topic-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 28px; }
.topic-card { padding: 24px; }
.topic-card h2 { margin: 12px 0 8px; font-size: 1.25rem; line-height: 1.25; }
.topic-card p { margin: 0; color: #41586e; }
.topic-meta { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-weight: 700; }
.topic-number { display: inline-grid; place-items: center; width: 35px; height: 35px; border-radius: 50%; color: white; background: var(--blue-2); }
.note-panel { background: var(--ice); }

.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 19px; }
.resource-card { padding: 22px; border: 1px solid var(--line); border-radius: 13px; }
.resource-card h3 { margin: 10px 0 4px; }
.resource-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; background: var(--blue); color: white; font-weight: 800; }
.muted-card { background: var(--paper); }
.check-list { columns: 2; column-gap: 40px; padding-left: 22px; }
.check-list li { break-inside: avoid; margin-bottom: 9px; }
.contact-panel { max-width: 720px; }
.small { font-size: .9rem; color: var(--muted); }

.signup-form { max-width: 720px; margin-top: 25px; }
.form-row { display: grid; gap: 6px; margin-bottom: 17px; }
.form-row label, .consent { font-weight: 700; }
input, select { width: 100%; padding: 12px 13px; border: 1px solid #aebfd0; border-radius: 8px; background: white; color: var(--ink); font: inherit; }
input:focus, select:focus { outline: 3px solid rgba(47,111,165,.2); border-color: var(--blue-2); }
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 20px 0; font-size: .92rem; }
.consent input { width: auto; margin-top: 5px; }
.message { margin: 20px 0; padding: 13px 16px; border-radius: 9px; font-weight: 700; }
.message.success { color: #0f5d3b; background: #dff5e9; }
.message.error { color: #852b2b; background: #fde8e8; }
.availability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.availability { padding: 19px; box-shadow: none; }
.availability > div { display: flex; justify-content: space-between; gap: 12px; }
.availability span { border-radius: 99px; padding: 2px 9px; font-size: .78rem; font-weight: 700; }
.availability.free span { color: var(--green); background: #dcf5e8; }
.availability.taken { opacity: .62; }
.availability.taken span { color: var(--red); background: #f9e3e3; }
.availability h3 { margin: 9px 0 0; font-size: 1rem; }
.narrow-panel { max-width: 600px; margin-inline: auto; }
.section-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--ice); color: var(--blue); }

.site-footer { display: flex; justify-content: space-between; gap: 30px; width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 30px 0 44px; color: var(--muted); border-top: 1px solid var(--line); font-size: .9rem; }

@media (max-width: 830px) {
    .intro-grid, .topic-list, .availability-grid, .resource-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .check-list { columns: 1; }
}
@media (max-width: 540px) {
    .hero { min-height: 385px; background-position: 64% 50%; }
    .hero::before { background: linear-gradient(90deg, rgba(3,14,26,.94), rgba(4,19,34,.76) 68%, rgba(3,14,26,.46)); }
    .hero-content { padding-top: 62px; }
    .menu { width: 100%; padding-inline: 10px; }
    .menu a { padding-inline: 13px; }
    .page { width: min(100% - 24px, 1120px); margin-top: 24px; }
    .panel { padding: 23px 19px; border-radius: 13px; }
    .steps { grid-template-columns: 1fr; }
    .timeline { grid-template-columns: 1fr; }
    .timeline .date { padding-bottom: 0; border-bottom: 0; }
    .site-footer { width: calc(100% - 24px); flex-direction: column; }
}