/* ==========================================================================
   Flow State Technologies — shared styles
   Palette: Santa Cruz Pacific. Type: Hanken Grotesk (interface) + Newsreader
   (reading). Signature: a thin "current" line that threads the page together.
   One stylesheet drives the landing page and all legal/policy pages.
   ========================================================================== */

:root {
  /* Color */
  --ink:        #0C1E24;   /* deep pine-teal, near-black — primary text */
  --ink-2:      #24413F;   /* softer heading ink */
  --paper:      #F7FAF9;   /* cool mist — page background */
  --paper-2:    #EDF3F1;   /* raised surface */
  --tide:       #0F5E5C;   /* Pacific teal — brand / primary */
  --tide-deep:  #0A4442;
  --surf:       #3E9B93;   /* lighter teal — accents on dark, links hover */
  --surf-soft:  #CFE4E1;   /* faint water */
  --sand:       #C88418;   /* warm gold — used sparingly, the one warm note */
  --fog:        #5F7A77;   /* muted gray-green — secondary text, captions */
  --line:       #D8E4E1;   /* hairlines */

  /* Type */
  --display: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --read:    "Newsreader", ui-serif, Georgia, "Times New Roman", serif;

  /* Scale */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.09rem);
  --step-1:  clamp(1.2rem, 1.12rem + 0.4vw, 1.45rem);
  --step-2:  clamp(1.5rem, 1.35rem + 0.75vw, 2rem);
  --step-3:  clamp(2rem, 1.7rem + 1.5vw, 3rem);
  --step-4:  clamp(2.6rem, 2rem + 3vw, 4.6rem);

  /* Space */
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --measure: 46rem;
  --radius: 14px;
  --radius-sm: 9px;
}

/* Reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--tide); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--tide-deep); }
:focus-visible { outline: 2.5px solid var(--sand); outline-offset: 3px; border-radius: 3px; }

/* Layout helpers --------------------------------------------------------- */
.wrap { width: min(72rem, 100%); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.eyebrow {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tide);
  margin: 0 0 1rem;
}
.eyebrow .dot { color: var(--sand); }

/* The signature "current" — a flowing line used as a section divider ------ */
.current { display: block; width: 100%; height: 26px; color: var(--surf); }
.current path { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; opacity: 0.5; }
.current .lead { stroke: var(--tide); stroke-dasharray: 10 14; animation: drift 3.2s linear infinite; }
@keyframes drift { to { stroke-dashoffset: -48; } }

/* Header ----------------------------------------------------------------- */
.masthead {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.masthead .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 62px; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 800; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.mark { width: 26px; height: 26px; flex: none; }
.navlinks { display: flex; gap: clamp(0.9rem, 2vw, 1.6rem); font-size: var(--step--1); font-weight: 600; }
.navlinks a { color: var(--ink-2); text-decoration: none; }
.navlinks a:hover { color: var(--tide); }
@media (max-width: 34rem) { .navlinks { display: none; } }

/* Hero ------------------------------------------------------------------- */
.hero { position: relative; overflow: clip; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60% 55% at 82% 8%, color-mix(in srgb, var(--surf-soft) 70%, transparent), transparent 70%),
    radial-gradient(70% 60% at 8% 100%, color-mix(in srgb, var(--surf-soft) 55%, transparent), transparent 65%);
}
.hero .wrap { position: relative; z-index: 1; padding-block: clamp(4rem, 11vw, 8rem) clamp(2.5rem, 6vw, 4rem); }
.hero h1 {
  font-size: var(--step-4);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 800;
  max-width: 15ch;
  margin: 0.4rem 0 0;
  color: var(--ink);
}
.hero h1 .flow {
  position: relative; white-space: nowrap;
  background: linear-gradient(100deg, var(--tide), var(--surf));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lede {
  font-family: var(--read);
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 42ch;
  margin: 1.6rem 0 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2.2rem; }

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font: inherit; font-weight: 700; font-size: var(--step--1);
  padding: 0.7rem 1.15rem; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--tide); color: #fff; }
.btn-primary:hover { background: var(--tide-deep); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--tide); color: var(--tide); }

/* App cards -------------------------------------------------------------- */
.apps { display: grid; gap: clamp(1.5rem, 4vw, 2.5rem); }
.appcard {
  display: grid; gap: clamp(1.5rem, 4vw, 2.8rem); align-items: center;
  grid-template-columns: 1fr;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.75rem);
}
@media (min-width: 52rem) {
  .appcard { grid-template-columns: 1.1fr 0.9fr; }
  .appcard.flip .shots { order: -1; }
}
.appcard h3 { font-size: var(--step-2); letter-spacing: -0.02em; margin: 0.2rem 0 0; color: var(--ink); }
.appcard .platform { font-size: var(--step--1); font-weight: 600; color: var(--fog); letter-spacing: 0.02em; }
.appcard .tagline { font-family: var(--read); font-size: var(--step-1); color: var(--tide-deep); margin: 0.6rem 0 0; font-style: italic; }
.appcard p.body { color: var(--ink-2); margin: 1rem 0 0; }

.tips { margin: 1.4rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.7rem; }
.tips li { position: relative; padding-left: 1.6rem; font-size: var(--step--1); color: var(--ink-2); }
.tips li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--sand);
}
.tips-label { font-size: var(--step--1); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--tide); margin: 1.6rem 0 0; }

.store-row { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }
.store {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 1rem; border-radius: 11px;
  background: var(--ink); color: #fff; text-decoration: none;
  font-size: 0.8rem; line-height: 1.1;
}
.store:hover { background: var(--tide-deep); color: #fff; }
.store svg { width: 22px; height: 22px; flex: none; }
.store b { display: block; font-size: 0.95rem; font-weight: 700; letter-spacing: -0.01em; }
.store span { display: block; font-size: 0.66rem; opacity: 0.82; text-transform: uppercase; letter-spacing: 0.06em; }
.card-links { margin-top: 1.3rem; font-size: var(--step--1); }
.card-links a { font-weight: 600; line-height: 1.5; }

/* Beta promotion section -------------------------------------------------- */
.section-beta {
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(3rem, 6vw, 5rem);
}
.beta-promo {
  max-width: var(--measure);
}
.beta-promo h2 {
  font-size: var(--step-2);
  color: var(--ink);
  margin: 0.5rem 0 1rem;
}
.beta-promo p {
  font-family: var(--read);
  font-size: var(--step-1);
  color: var(--ink-2);
  margin-bottom: 1.5rem;
}
.beta-promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Beta gating and links -------------------------------------------------- */
.beta-links {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  text-align: center;
}
.nda-gate p {
  font-size: var(--step--1);
  color: var(--ink-2);
  margin-bottom: 1.2rem;
}
.beta-revealed {
  display: grid;
  gap: 1.2rem;
  justify-items: center;
}
.beta-revealed a {
  font-size: var(--step-1);
  font-weight: 700;
  text-decoration: none;
  color: var(--tide);
  transition: color 0.15s ease;
}
.beta-revealed a:hover {
  color: var(--tide-deep);
  text-decoration: underline;
}

/* Phone / screenshot placeholders ---------------------------------------- */
.shots { display: flex; gap: 1rem; justify-content: center; }
.phone {
  width: min(200px, 44vw); aspect-ratio: 9 / 19.5; flex: none;
  border-radius: 26px; padding: 8px;
  background: linear-gradient(160deg, var(--tide-deep), var(--ink));
  box-shadow: 0 18px 40px -22px rgba(12,30,36,0.55);
}
.phone .screen {
  height: 100%; border-radius: 20px; overflow: hidden;
  background: linear-gradient(170deg, var(--surf-soft), var(--paper));
  display: grid; place-content: center; text-align: center; padding: 1rem;
}
.phone .screen img { height: 100%; width: 100%; object-fit: cover; border-radius: inherit; }
.phone .ph-note { font-size: 0.72rem; color: var(--fog); font-weight: 600; line-height: 1.4; }
.phone .ph-note code { display: block; margin-top: 0.5rem; font-size: 0.66rem; color: var(--tide-deep); word-break: break-all; }
.phone.tilt { transform: rotate(-4deg); }
.phone.tilt.two { transform: rotate(3deg) translateY(10px); margin-left: -34px; }
@media (max-width: 32rem) { .phone.tilt, .phone.tilt.two { transform: none; margin-left: 0; } .shots { flex-direction: column; align-items: center; } }

/* Footer ----------------------------------------------------------------- */
.foot { background: var(--ink); color: #cfdedb; }
.foot .wrap { padding-block: clamp(3rem, 7vw, 4.5rem); display: grid; gap: 2rem; }
.foot a { color: #eaf3f1; }
.foot a:hover { color: #fff; }
.foot-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
.foot .brand { color: #fff; }
.foot .sitemap { display: flex; flex-wrap: wrap; gap: 2.5rem; font-size: var(--step--1); }
.foot .sitemap h4 { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--surf); margin: 0 0 0.7rem; }
.foot .sitemap ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.foot .fine { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 1.5rem; font-size: 0.78rem; color: #9db6b2; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem; }

/* ==========================================================================
   Legal / policy document pages
   ========================================================================== */
.doc { width: min(var(--measure), 100%); margin-inline: auto; padding-inline: var(--gutter); }
.doc-head { padding-block: clamp(2.5rem, 6vw, 4rem) 1.5rem; }
.doc-head h1 { font-size: var(--step-3); letter-spacing: -0.025em; line-height: 1.08; margin: 0.6rem 0 0; color: var(--ink); }
.doc-meta { font-size: var(--step--1); color: var(--fog); margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; }
.doc-meta b { color: var(--ink-2); font-weight: 700; }

.toc { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1.1rem 1.3rem; margin: 1.5rem 0 0; }
.toc p { margin: 0 0 0.6rem; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; font-weight: 700; color: var(--tide); }
.toc ol { margin: 0; padding-left: 1.2rem; columns: 2; column-gap: 2rem; font-size: var(--step--1); }
@media (max-width: 34rem) { .toc ol { columns: 1; } }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

.doc-body { font-family: var(--read); font-size: 1.12rem; line-height: 1.72; color: #16302e; padding-block: 1rem clamp(3rem, 7vw, 5rem); }
.doc-body h2 { font-family: var(--display); font-size: var(--step-1); letter-spacing: -0.01em; color: var(--ink); margin: 2.6rem 0 0.6rem; scroll-margin-top: 80px; }
.doc-body h2 .n { color: var(--surf); font-weight: 700; margin-right: 0.5rem; }
.doc-body h3 { font-family: var(--display); font-size: var(--step-0); font-weight: 700; color: var(--ink-2); margin: 1.6rem 0 0.3rem; }
.doc-body p, .doc-body li { max-width: 68ch; }
.doc-body ul { padding-left: 1.2rem; }
.doc-body li { margin: 0.35rem 0; }
.doc-body a { color: var(--tide); }
.callout {
  font-family: var(--display); font-size: var(--step--1); line-height: 1.6;
  background: color-mix(in srgb, var(--surf-soft) 45%, var(--paper));
  border-left: 3px solid var(--tide);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1rem 1.2rem; margin: 1.6rem 0; color: var(--ink-2);
}
.stamp { font-family: var(--display); font-size: 0.8rem; color: var(--fog); }

.backlink { display: inline-flex; align-items: center; gap: 0.4rem; font-family: var(--display); font-size: var(--step--1); font-weight: 600; text-decoration: none; color: var(--tide); padding-top: 1.5rem; }
.backlink:hover { gap: 0.6rem; }

/* Reduced motion --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .current .lead { animation: none; }
  .btn, .backlink { transition: none; }
}