/* ==========================================================================
   LULALOON — calm software.
   Navy-on-white, still-water design system
   ========================================================================== */

/* ---- Tokens ---------------------------------------------------------------- */
:root {
  --paper:   #fbfbf8;
  --foam:    #f1f3f6;
  --card:    #ffffff;
  --navy:    #1d2340;
  --ink:     #1d2340;
  --ink-2:   #3c4363;
  --muted:   #767d94;
  --line:    #e2e4ec;
  --lake:    #4f7cac;
  --lake-2:  #7ea6cf;
  --mist:    #dbe5ef;

  --sans: "Outfit", "Avenir Next", "Helvetica Neue", -apple-system, sans-serif;

  --maxw: 1180px;
  --gut: clamp(20px, 4.5vw, 56px);
  --r: 20px;
  --ease: cubic-bezier(.25,.6,.3,1);
  --shadow: 0 24px 60px -30px rgba(29,35,64,.25);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:  #0f1220;
    --foam:   #151929;
    --card:   #1a1f33;
    --navy:   #1d2340;
    --ink:    #e9ebf4;
    --ink-2:  #c3c8da;
    --muted:  #8b91a8;
    --line:   #272d45;
    --lake:   #7ea6cf;
    --lake-2: #4f7cac;
    --mist:   #232a44;
    --shadow: 0 24px 60px -30px rgba(0,0,0,.6);
  }
}

/* ---- Reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ---- Layout ------------------------------------------------------------------ */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: clamp(64px, 9vw, 120px); position: relative; }
.section--tight { padding-block: clamp(44px, 6vw, 80px); }
.grid { display: grid; gap: clamp(18px, 2.6vw, 30px); }

/* ---- Typography ---------------------------------------------------------------- */
h1, h2, h3 { font-weight: 200; line-height: 1.08; letter-spacing: -.015em; }
.display { font-size: clamp(2.8rem, 7vw, 5.6rem); font-weight: 180; letter-spacing: -.025em; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 300; }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.28rem); color: var(--ink-2); font-weight: 260; max-width: 54ch; }
.muted { color: var(--muted); }
.accent { color: var(--lake); }

/* Tracked micro-label */
.kicker {
  display: inline-flex; align-items: center; gap: .9em;
  font-size: .68rem; font-weight: 400;
  letter-spacing: .32em; text-transform: uppercase;
  color: var(--lake);
}
.kicker::before { content: ""; width: 30px; height: 1px; background: currentColor; opacity: .7; }
.kicker--bare::before { display: none; }

/* ---- Buttons --------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  padding: .95em 2.1em;
  border-radius: 999px;
  font-size: .78rem; font-weight: 400;
  letter-spacing: .22em; text-transform: uppercase;
  border: 1px solid var(--ink);
  color: var(--ink); background: transparent;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--lake); border-color: var(--lake); color: #fff; }

.tlink {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: .74rem; letter-spacing: .24em; text-transform: uppercase; font-weight: 400;
  color: var(--lake); padding-bottom: 4px; position: relative;
}
.tlink::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: currentColor; transform: scaleX(.3); transform-origin: left; transition: transform .35s var(--ease); }
.tlink:hover::after { transform: scaleX(1); }

/* ---- Header ------------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.site-header.is-stuck { border-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand svg { height: 34px; width: auto; flex: none; }
.brand .wm { font-size: .95rem; font-weight: 300; letter-spacing: .42em; text-transform: uppercase; color: var(--ink); }
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 36px); }
.nav-links a.link {
  font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; font-weight: 400;
  color: var(--ink-2); padding: 6px 0; position: relative; transition: color .25s var(--ease);
}
.nav-links a.link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: var(--lake); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav-links a.link:hover { color: var(--ink); }
.nav-links a.link:hover::after, .nav-links a.link[aria-current="page"]::after { transform: scaleX(1); }
.nav-links a.link[aria-current="page"] { color: var(--ink); }

.nav-toggle { display: none; width: 44px; height: 44px; background: none; border: 1px solid var(--line); border-radius: 12px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 18px; height: 1.5px; background: var(--ink); transition: transform .3s var(--ease), opacity .2s; position: relative;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    position: fixed; inset: 78px 0 auto 0; background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 10px var(--gut) 30px;
    transform: translateY(-10px); opacity: 0; pointer-events: none;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
  }
  body.nav-open .nav-menu { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-links a.link { padding: 16px 2px; border-bottom: 1px solid var(--line); font-size: .8rem; }
}

/* ---- Hero --------------------------------------------------------------------------- */
.hero { position: relative; padding-block: clamp(56px, 9vw, 120px); overflow: hidden; }
.hero .loops {
  position: absolute; right: -8%; top: 4%; width: min(620px, 60vw); opacity: .1;
  pointer-events: none;
}
.hero .display { max-width: 14ch; position: relative; }
.hero .lead { margin-top: 1.5rem; }
.hero-actions { margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: 14px; }

/* Wave divider */
.wave { display: block; width: 100%; height: 46px; color: var(--foam); }
.wave--flip { transform: scaleY(-1); }

/* ---- Stats strip ----------------------------------------------------------------------- */
.strip { background: var(--foam); }
.strip-inner { display: flex; flex-wrap: wrap; gap: clamp(28px, 6vw, 80px); padding-block: 34px; }
.stat .n { font-size: clamp(1.9rem, 3vw, 2.7rem); font-weight: 200; line-height: 1; color: var(--ink); }
.stat .k { color: var(--muted); font-size: .82rem; letter-spacing: .08em; margin-top: .5rem; }

/* ---- Section head ------------------------------------------------------------------------ */
.sec-head { max-width: 64ch; margin-bottom: clamp(30px, 4.5vw, 54px); }
.sec-head h2 { margin-top: .6rem; }
.sec-head .lead { margin-top: .9rem; }

/* ---- Cards --------------------------------------------------------------------------------- */
.cards { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: clamp(22px, 3vw, 32px);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--lake) 45%, var(--line)); }
.card .ic {
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--mist); color: var(--lake); margin-bottom: 18px;
}
.card h3 { margin-bottom: .5rem; }
.card p { color: var(--muted); font-size: .95rem; }

/* ---- Process steps ---------------------------------------------------------------------------- */
.steps { counter-reset: s; }
.step {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(18px, 3vw, 36px);
  padding-block: clamp(24px, 3.5vw, 38px); border-top: 1px solid var(--line); align-items: start;
}
.step .idx { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 150; color: var(--lake); line-height: 1; }
.step h3 { margin-bottom: .4rem; }
.step p { color: var(--muted); max-width: 60ch; font-size: .96rem; }

/* ---- Deep band (navy) --------------------------------------------------------------------------- */
.deep { background: var(--navy); color: #e9ebf4; position: relative; overflow: hidden; }
.deep .kicker { color: var(--lake-2); }
.deep h2 { color: #f2f4fa; max-width: 24ch; }
.deep p { color: rgba(233,235,244,.75); }
.deep .grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: clamp(26px, 4vw, 44px); }
.deep .it { border-top: 1px solid rgba(233,235,244,.2); padding-top: 18px; }
.deep .it h3 { color: #f2f4fa; font-size: 1.15rem; margin-bottom: .4rem; }
.deep .it p { font-size: .92rem; }
.deep .loops-bg { position: absolute; right: -6%; bottom: -12%; width: 420px; opacity: .08; pointer-events: none; }

/* ---- Split ----------------------------------------------------------------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } }
.pond {
  border-radius: var(--r); border: 1px solid var(--line); background: var(--card);
  aspect-ratio: 5/4; display: grid; place-items: center; overflow: hidden; box-shadow: var(--shadow);
}
.pond svg { width: 78%; height: auto; }

/* ---- Forms -------------------------------------------------------------------------------------------- */
.form { display: grid; gap: 20px; max-width: 560px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .68rem; letter-spacing: .26em; text-transform: uppercase; color: var(--ink-2); font-weight: 400; }
.field input, .field textarea, .field select {
  font: inherit; font-weight: 300; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 14px;
  padding: 13px 16px; width: 100%;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--lake); box-shadow: 0 0 0 4px color-mix(in srgb, var(--lake) 22%, transparent);
}
.field textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
.form .btn { justify-self: start; margin-top: 6px; }
.form-note { font-size: .84rem; color: var(--muted); }

/* ---- Footer ----------------------------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); background: var(--foam); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: clamp(28px, 4vw, 52px); padding-block: clamp(44px, 6vw, 72px); }
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { color: var(--muted); font-size: .92rem; max-width: 30ch; margin-top: 14px; }
.footer-col h4 { font-size: .64rem; letter-spacing: .3em; text-transform: uppercase; color: var(--muted); font-weight: 400; margin-bottom: 16px; }
.footer-col a { display: block; padding: 5px 0; font-size: .93rem; color: var(--ink-2); transition: color .2s; }
.footer-col a:hover { color: var(--lake); }
.footer-base { border-top: 1px solid var(--line); padding-block: 20px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; color: var(--muted); font-size: .8rem; }

/* ---- Page hero (interior) ------------------------------------------------------------------------------------ */
.page-hero { padding-top: clamp(44px, 6vw, 80px); padding-bottom: clamp(20px, 3vw, 40px); }
.page-hero .display { max-width: 17ch; font-size: clamp(2.4rem, 5.6vw, 4.4rem); }
.page-hero .lead { margin-top: 1.3rem; }

/* ---- Reveal ----------------------------------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .09s; }
.reveal[data-d="2"] { transition-delay: .18s; }
.reveal[data-d="3"] { transition-delay: .27s; }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 8px; }

/* ---- Real logo image swap (light/dark) ------------------------------------ */
.only-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .only-light { display: none; }
  .only-dark { display: initial; }
}