/* SydeDoor: shared styles
   Type: Inter (display optical size) for headings, Newsreader text-size italic accents, Archivo Expanded logo, Geist Mono labels.
   Colour: warm off-white base, black ink, SydeDoor blue (#1E5FF0) accent type, orange accents. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:  #F7F6F2;
  --white:  #FFFFFF;
  --black:  #0B0B0C;
  --navy:   #0F1B3D;
  --blue:   #1E5FF0;
  --blue-l: #DCE5FF;
  --orange: #F28A30;
  --navy-ink: #14213F;
  --cream:  #F3EFE4;

  --ink:    var(--black);
  --dim:    rgba(11,11,12,.62);
  --faint:  rgba(11,11,12,.42);
  --line:   rgba(11,11,12,.11);

  --sans:   'Inter', system-ui, sans-serif;
  --serif:  'Newsreader', Georgia, serif;
  --wide:   'Archivo', 'Arial Black', sans-serif;
  --mono:   'Geist Mono', ui-monospace, monospace;
  --gut:    clamp(16px, 3.4vw, 48px);
  --wrap:   1360px;
  --r:      14px;
}
.dark { --ink: var(--white); --dim: rgba(255,255,255,.7); --faint: rgba(255,255,255,.46); --line: rgba(255,255,255,.15); color: var(--ink); }

html { scroll-behavior: smooth; overflow-x: clip; }
body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-optical-sizing: auto; font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; overflow-x: clip; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--blue); color: var(--white); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gut); }
section { position: relative; padding-block: clamp(90px, 11vw, 160px); }
.tight { padding-block: clamp(60px, 7vw, 100px); }
.mist { background: var(--white); }
.navy { background: var(--navy); }
.black { background: var(--black); }

/* Type */
.label { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); display: inline-flex; align-items: center; gap: 10px; }
.label.hl { color: var(--blue); }
.dark .label.hl { color: var(--cream); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); flex: none; display: inline-block; }
.dot.pulse { animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
h1, h2, h3, h4 { font-weight: 600; letter-spacing: -.045em; line-height: .98; color: var(--ink); }
h1 { font-size: clamp(48px, 8vw, 128px); letter-spacing: -.055em; line-height: .92; }
h2 { font-size: clamp(40px, 5.6vw, 84px); }
h3 { font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -.03em; line-height: 1.1; font-weight: 500; }
/* Accent words: Newsreader italic at its text optical size (lower contrast, like a book italic), SydeDoor blue (cream on dark) */
em, .it { font-family: var(--serif); font-style: italic; font-weight: 440; font-optical-sizing: none; font-variation-settings: 'opsz' 14; letter-spacing: -.02em; color: var(--blue); }
h1 em, h2 em, h3 em { font-weight: 370; letter-spacing: -.03em; }
.dark em, .dark .it { color: var(--cream); }
em.o, .dark em.o { color: var(--orange); }
/* Two-tone headings: second line greyed */
.g { color: var(--faint); }
.fin { display: inline-block; width: .14em; height: .14em; border-radius: 50%; background: var(--orange); margin-left: .04em; }
p.body, .body { color: var(--dim); font-size: clamp(16px, 1.25vw, 18.5px); max-width: 580px; }
.lead { font-size: clamp(22px, 2.4vw, 34px); line-height: 1.32; letter-spacing: -.025em; color: var(--dim); max-width: 1180px; }
.head { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; margin-bottom: clamp(50px, 6vw, 80px); }
.head h2 { margin-top: 22px; }

/* Buttons: dark pill with coloured arrow circle (DNA / Lovable) */
.btn { display: inline-flex; align-items: center; gap: 14px; font-size: 15px; font-weight: 500; padding: 6px 6px 6px 22px; border-radius: 999px; background: var(--black); color: var(--white); border: 0; cursor: pointer; font-family: inherit; transition: background .3s ease; white-space: nowrap; }
.btn .arr { width: 36px; height: 36px; border-radius: 50%; background: var(--orange); color: var(--white); display: grid; place-items: center; font-size: 16px; transition: transform .3s ease; }
.btn:hover .arr { transform: rotate(-45deg); }
.btn.light { background: var(--white); color: var(--black); }
.dark .btn { background: var(--white); color: var(--black); }
.link { display: inline-flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 500; padding-bottom: 5px; border-bottom: 1px solid var(--faint); transition: border-color .3s ease, gap .3s ease; }
.link:hover { border-color: var(--ink); gap: 18px; }

/* Logo: expanded black capitals in cream (DNA-style wordmark) */
.logo { display: inline-flex; align-items: center; font-family: var(--wide); font-weight: 900; font-stretch: 125%; font-variation-settings: 'wdth' 125; font-size: 21px; letter-spacing: -.01em; text-transform: uppercase; color: var(--cream); white-space: nowrap; line-height: 1; }

/* Nav: floating dark pill (DNA) */
nav.top { position: fixed; top: 14px; left: 0; right: 0; z-index: 50; padding-inline: var(--gut); }
nav.top .bar { max-width: var(--wrap); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 64px; padding: 0 8px 0 26px; border-radius: 999px; background: rgba(18,18,20,.82); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); color: var(--white); box-shadow: 0 10px 40px rgba(0,0,0,.12); }
nav.top .logo { color: var(--cream); }
.nav-links { display: flex; gap: 30px; font-size: 15px; font-weight: 500; letter-spacing: -.01em; }
.nav-links a { color: rgba(255,255,255,.62); transition: color .2s ease; }
.nav-links a sup { font-size: 9px; font-weight: 500; margin-left: 2px; vertical-align: super; opacity: .8; }
.nav-links a:hover, .nav-links a.on { color: var(--white); }
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-right .btn { background: var(--white); color: var(--black); font-size: 14px; padding: 5px 5px 5px 18px; }
.nav-right .btn .arr { width: 40px; height: 40px; }
.burger { display: none; background: none; border: 0; padding: 10px; cursor: pointer; color: var(--white); }
.burger span { display: block; width: 20px; height: 1.5px; background: currentColor; margin: 5px 0; }
.menu { display: none; }

/* Media */
.vid { position: relative; border-radius: var(--r); overflow: hidden; background: #ddd; }
.vid video, .vid img { width: 100%; height: 100%; object-fit: cover; }
.vid .tag { position: absolute; left: 14px; top: 14px; display: inline-flex; align-items: center; gap: 8px; padding: 6px 11px; border-radius: 999px; background: rgba(11,11,12,.72); font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--white); }

/* AI stills: slow, subtle zoom so they feel alive */
img.kb { animation: kb 26s ease-in-out infinite alternate; transform-origin: 60% 40%; }
@keyframes kb { from { transform: scale(1); } to { transform: scale(1.08); } }

/* Feature columns (Lovable) */
.feats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 36px; }
.feats > div { display: grid; grid-template-rows: subgrid; grid-row: span 2; row-gap: 14px; }
.feats b { display: block; font-weight: 500; font-size: 20px; letter-spacing: -.025em; line-height: 1.2; align-self: end; }
.feats p { color: var(--dim); font-size: 15.5px; line-height: 1.6; }

/* Step rows (Lovable) */
.rows { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 200px 1fr 1.3fr; gap: 30px; align-items: center; padding: 34px 0; border-bottom: 1px solid var(--line); }
.row .n { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.row h3 { font-size: clamp(24px, 2.4vw, 34px); }
.row p { color: var(--dim); font-size: 17px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card { background: var(--white); border-radius: var(--r); padding: 30px 28px 32px; }
.mist .card { background: var(--paper); }
.card .n { font-family: var(--mono); font-size: 11px; color: var(--blue); letter-spacing: .14em; }
.card h3 { font-size: 23px; margin: 26px 0 10px; }
.card p { color: var(--dim); font-size: 15px; }

/* FAQ */
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; font-size: 19px; font-weight: 500; letter-spacing: -.02em; }
summary::-webkit-details-marker { display: none; }
summary i { font-style: normal; font-family: var(--mono); font-weight: 400; color: var(--faint); transition: transform .3s ease, color .3s ease; flex: none; }
details[open] summary i { transform: rotate(45deg); color: var(--orange); }
details .a { color: var(--dim); padding: 0 60px 26px 0; max-width: 720px; display: grid; gap: 12px; }
details .a ul { padding-left: 18px; display: grid; gap: 4px; }

/* Waitlist form */
.waitlist { display: grid; gap: 14px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chips label { cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span { display: inline-block; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; color: var(--dim); transition: all .25s ease; }
.chips input:checked + span { border-color: var(--ink); color: var(--ink); }
.field { display: flex; align-items: center; border-bottom: 1px solid var(--faint); }
.field input, .field select { flex: 1; background: transparent; border: 0; color: var(--ink); font: inherit; font-size: 18px; padding: 15px 0; outline: none; min-width: 0; }
.field select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.field select option { color: #000; }
.field input::placeholder { color: var(--faint); }
.field button { background: none; border: 0; color: var(--ink); font: inherit; font-size: 15px; font-weight: 500; cursor: pointer; display: inline-flex; gap: 10px; align-items: center; padding-left: 16px; }
.field:focus-within { border-color: var(--ink); }
.note { font-size: 12px; color: var(--faint); }
.ok { display: none; font-size: 14px; align-items: center; gap: 10px; }

/* CTA band */
.cta { background: var(--black); }
.cta .wrap { display: grid; grid-template-columns: 7fr 5fr; gap: 60px; align-items: end; }
.cta h2 { font-size: clamp(56px, 9vw, 150px); letter-spacing: -.06em; line-height: .9; }

/* Footer */
footer { background: var(--black); padding-block: 0 34px; font-size: 14px; }
footer .inner { border-top: 1px solid var(--line); padding-top: 60px; }
.foot { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; color: var(--dim); }
footer .logo { color: var(--cream); font-size: clamp(30px, 6vw, 64px); }
footer h5 { font-family: var(--mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); font-weight: 400; margin-bottom: 16px; }
footer ul { list-style: none; display: grid; gap: 8px; }
footer a:hover { color: var(--white); }
.foot-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 70px; font-size: 12px; color: var(--faint); }

/* Page header (inner pages) */
.page-head { padding-block: 170px clamp(60px, 8vw, 110px); }
.page-head h1 { font-size: clamp(46px, 7.4vw, 116px); margin-top: 26px; max-width: 1150px; }
.page-head .body { margin-top: 30px; }

/* Reveal */
.rv { opacity: 0; transform: translateY(16px); transition: opacity 1s ease var(--d, 0s), transform 1s cubic-bezier(.2,.7,.2,1) var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }
/* Without JavaScript, never hide content */
@media (scripting: none) { .rv { opacity: 1; transform: none; } }

@media (max-width: 1100px) {
  .nav-links { display: none; }
  .burger { display: block; }
  nav.top .bar { padding-left: 20px; }
  .menu.open { display: grid; max-width: var(--wrap); margin: 8px auto 0; padding: 10px 22px 16px; border-radius: 24px; background: rgba(18,18,20,.94); color: var(--white); }
  .menu a { padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: 18px; letter-spacing: -.02em; }
  .menu a:last-child { border-bottom: 0; }
  .head, .cta .wrap { grid-template-columns: 1fr; gap: 30px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .feats { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .row { grid-template-columns: 140px 1fr; }
  .row p { grid-column: 2; }
}
@media (max-width: 680px) {
  nav.top { top: 10px; }
  nav.top .bar { height: 58px; }
  .nav-right .btn { display: none; }
  .logo { font-size: 21px; }
  .cards, .feats { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; gap: 8px; padding: 26px 0; }
  .row p { grid-column: auto; }
  details .a { padding-right: 0; }
  .foot { grid-template-columns: 1fr 1fr; }
  .foot > div:first-child { grid-column: 1 / -1; }
  .page-head { padding-top: 130px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rv { opacity: 1; transform: none; }
}

/* CTA to the waitlist form (Tally) */
.cta-box { display: grid; gap: 22px; justify-items: start; }
.cta-box .btn { font-size: 17px; padding: 8px 8px 8px 26px; }
.cta-box .btn .arr { width: 46px; height: 46px; }