/* Roundtrip Returns — shared site styles.
   Design tokens mirror the iOS app (ios/Roundtrip/Theme.swift). */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Newsreader:ital,opsz,wght@0,16..24,400;0,16..24,500;0,16..24,600;1,16..24,400;1,16..24,500&display=swap');

:root {
    /* Surfaces */
    --paper:   #F4EFE3;
    --paper2:  #EAE2CE;
    --card:    #FBF8F0;
    --line:    #E0D9C8;
    --line2:   #CFC5AC;
    /* Ink */
    --ink:     #1C1814;
    --ink2:    #3F3A33;
    --muted:   #847C6F;
    /* Burnt-rust accent */
    --accent:      #C2410C;
    --accent-2:    #A23509;
    --accent-soft: #F8DECA;
    --accent-ink:  #5C1F08;
    /* Urgency */
    --ok:        #5B8A5A;
    --ok-soft:   #DEE6D8;
    --close:     #B58400;
    --close-soft:#F4E8C5;
    /* Fonts */
    --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --sans:  'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono:  'JetBrains Mono', 'SF Mono', Consolas, monospace;
    /* Layout */
    --container: 1080px;
    --container-narrow: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--accent-soft); color: var(--accent-ink); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ── Layout primitives ─────────────────────────────────────────── */

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--container-narrow); }

.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--line); }

/* ── Site header ───────────────────────────────────────────────── */

.site-header {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
    background: rgba(244, 239, 227, 0.92);
}
.site-header .row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ink);
    font-family: var(--serif);
    font-style: italic;
    font-weight: 500;
    font-size: 18px;
    text-decoration: none;
}
.logo:hover { text-decoration: none; }
.logo svg { display: block; }
.site-nav {
    display: flex;
    gap: 22px;
    align-items: center;
}
.site-nav a {
    color: var(--ink2);
    font-size: 14px;
    font-weight: 500;
}
.site-nav a:hover { color: var(--ink); text-decoration: none; }

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

.hero { padding: 84px 0 56px; }
.eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 18px;
}
h1.headline {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(40px, 6.8vw, 78px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0 0 22px;
    color: var(--ink);
}
.lede {
    font-size: clamp(17px, 1.5vw, 20px);
    color: var(--ink2);
    line-height: 1.55;
    max-width: 56ch;
    margin: 0 0 32px;
}

/* ── Buttons ───────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 22px;
    border-radius: 12px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.08s ease, opacity 0.08s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); opacity: 0.92; }
.btn-primary { background: var(--ink); color: var(--card); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-secondary {
    background: transparent;
    color: var(--ink);
    border-color: var(--line2);
}
.btn-secondary:hover { background: var(--card); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn-row .note {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ── Waitlist form ─────────────────────────────────────────────── */

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.waitlist {
    display: flex;
    gap: 10px;
    align-items: stretch;
    flex-wrap: wrap;
    max-width: 540px;
}
.waitlist-input {
    flex: 1 1 240px;
    min-height: 50px;
    padding: 12px 16px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
    background: var(--card);
    border: 1px solid var(--line2);
    border-radius: 12px;
    outline: none;
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
    -webkit-appearance: none;
}
.waitlist-input::placeholder { color: var(--muted); font-weight: 400; }
.waitlist-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.18);
}
.waitlist-submit {
    flex: 0 0 auto;
    min-height: 50px;
    padding: 14px 20px;
}
.waitlist-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.waitlist-note {
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}
.waitlist-status {
    margin-top: 16px;
    font-size: 15px;
    font-weight: 500;
    padding: 12px 16px;
    border-radius: 10px;
    max-width: 540px;
}
.waitlist-status.success {
    color: var(--ink);
    background: var(--ok-soft);
    border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent);
}
.waitlist-status.error {
    color: var(--accent-ink);
    background: var(--accent-soft);
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

@media (max-width: 480px) {
    .waitlist { flex-direction: column; }
    .waitlist-input, .waitlist-submit { width: 100%; }
}

/* ── Feature cards ─────────────────────────────────────────────── */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}
.feature {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 24px;
}
.feature .tag {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 10px;
}
.feature h3 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 22px;
    letter-spacing: -0.01em;
    margin: 0 0 8px;
    color: var(--ink);
}
.feature p { color: var(--ink2); margin: 0; font-size: 14.5px; }

/* ── Long-form content (privacy / terms / support) ─────────────── */

.long-form {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 56px 24px 96px;
}
.long-form h1 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(34px, 4.5vw, 48px);
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
    color: var(--ink);
}
.long-form h2 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 24px;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin: 44px 0 12px;
}
.long-form h3 {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 16px;
    color: var(--ink);
    margin: 28px 0 8px;
}
.long-form p, .long-form li {
    color: var(--ink2);
    font-size: 16px;
    line-height: 1.65;
}
.long-form p { margin: 0 0 14px; }
.long-form ul, .long-form ol { padding-left: 20px; margin: 0 0 18px; }
.long-form li { margin-bottom: 8px; }
.long-form li::marker { color: var(--muted); }
.long-form strong { color: var(--ink); font-weight: 600; }
.long-form hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 36px 0;
}
.long-form blockquote {
    margin: 18px 0;
    padding: 14px 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-left: 3px solid var(--accent);
    border-radius: 10px;
    color: var(--ink2);
}
.long-form blockquote p:last-child { margin-bottom: 0; }
.meta {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-top: 8px;
}

/* ── Privacy promise card (reusable) ───────────────────────────── */

.promise {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 22px 24px;
    display: grid;
    gap: 12px;
}
.promise h4 {
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.promise ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.promise li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--ink2);
    font-size: 14px;
    line-height: 1.5;
}
.promise li .mark {
    flex: 0 0 18px;
    height: 18px;
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
}
.promise li.yes .mark { background: var(--ink); }
.promise li.no  .mark { background: var(--accent-soft); color: var(--accent); }

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

.site-footer {
    border-top: 1px solid var(--line);
    padding: 36px 0 56px;
    color: var(--muted);
    font-size: 13px;
}
.site-footer .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.site-footer .links { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer .links a { color: var(--ink2); font-weight: 500; }
.site-footer .made {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ── Tighten down on small screens ─────────────────────────────── */

@media (max-width: 600px) {
    .section { padding: 48px 0; }
    .hero { padding: 56px 0 36px; }
    .container { padding: 0 20px; }
    .site-header { padding: 14px 0; }
    .site-nav { gap: 14px; }
}