/* inphase.sam-bennett.dev - same palette as the app (web/src/ui/app.css):
 * near-black neutrals, brand cyan as the one action colour, violet only in the
 * brand wave, green/amber/red never needed here. */

:root {
  --bg: #0b0d12;
  --panel: #12151c;
  --raised: #181c25;
  --line: #222733;
  --line-strong: #2f3543;
  --fg: #eef1f6;
  --fg-2: #c4c9d4;
  --muted: #8a91a2;
  --faint: #5d6474;
  --cyan: #22d3ee;
  --cyan-hover: #4fdff4;
  --cyan-ink: #03151a;
  --violet: #8b5cf6;
  --coffee: #ffdd00;
  --coffee-ink: #1f1a00;
  --sans: system-ui, -apple-system, "Segoe UI Variable Text", "Segoe UI", Roboto, sans-serif;
  --gutter: clamp(18px, 5vw, 56px);
  color-scheme: dark;
}

* { box-sizing: border-box; }
/* Decorations (the glow and wave behind the phone) may run past the content
 * column; only the screen edge cuts them, never a section box. */
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

main, .top, .foot { width: min(1180px, 100%); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---- header -------------------------------------------------------------- */

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-top: 22px; padding-bottom: 22px;
}
.brand img { display: block; height: 38px; width: auto; }
.top nav { display: flex; gap: clamp(0.9rem, 3vw, 2rem); font-size: 0.93rem; }
.top nav a { color: var(--fg-2); font-weight: 550; }
.top nav a:hover { color: var(--fg); text-decoration: none; }

/* ---- hero ---------------------------------------------------------------- */

.hero {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center; gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 6vw, 4.5rem) 0 clamp(3rem, 7vw, 5.5rem);
}
.kicker {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-size: 0.82rem; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-2); margin-bottom: 1.3rem;
}
.kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.15); }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.1rem); font-weight: 750; max-width: 13ch; }
.lede { margin-top: 1.4rem; font-size: clamp(1.02rem, 1.6vw, 1.17rem); color: var(--fg-2); max-width: 36rem; }

.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  min-height: 50px; padding: 0 1.3rem; border-radius: 12px;
  font-weight: 650; font-size: 1rem; color: var(--fg);
  background: var(--raised); border: 1px solid var(--line-strong);
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}
.btn:hover { text-decoration: none; background: #202532; border-color: #3a4152; }
.btn:active { transform: translateY(1px); }
.btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn.primary { background: var(--cyan); color: var(--cyan-ink); border-color: transparent; }
.btn.primary:hover { background: var(--cyan-hover); }
.btn.coffee { background: var(--coffee); color: var(--coffee-ink); border-color: transparent; }
.btn.coffee:hover { background: #ffe53d; }
.fine { margin-top: 0.9rem; font-size: 0.85rem; color: var(--muted); }

/* The screenshot, in a plain phone outline; the brand wave runs behind it. */
.hero-shot { margin: 0; position: relative; display: flex; flex-direction: column; align-items: center; }
.hero-shot::before {
  content: ""; position: absolute; left: -14%; right: -14%; top: 46%; height: 26px; z-index: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  /* The wave, faded out at both ends rather than stopping at a hard edge. */
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='26'%3E%3Cpath d='M0 13C16 2 32 2 48 13s32 11 48 0' fill='none' stroke='%23000' stroke-width='3'/%3E%3C/svg%3E") repeat-x 0 50% / 96px 26px,
    linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent) no-repeat 0 0 / 100% 100%;
  -webkit-mask-composite: source-in;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='26'%3E%3Cpath d='M0 13C16 2 32 2 48 13s32 11 48 0' fill='none' stroke='%23000' stroke-width='3'/%3E%3C/svg%3E") repeat-x 0 50% / 96px 26px,
    linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent) no-repeat 0 0 / 100% 100%;
  mask-composite: intersect;
  opacity: 0.55;
  animation: wave 3s linear infinite;
}
@keyframes wave { to { -webkit-mask-position: 96px 50%, 0 0; mask-position: 96px 50%, 0 0; } }
.phone {
  position: relative; z-index: 1;
  width: min(330px, 78vw); aspect-ratio: 690 / 1499;
  border-radius: 46px; padding: 10px;
  background: #1a1d25;
  box-shadow: 0 0 0 1px #2c313d, 0 40px 80px -30px rgba(0, 0, 0, 0.8), 0 0 90px -20px rgba(34, 211, 238, 0.25);
}
.phone img { display: block; width: 100%; height: 100%; border-radius: 37px; object-fit: cover; }
.hero-shot figcaption { margin-top: 1.1rem; font-size: 0.85rem; color: var(--muted); text-align: center; max-width: 30ch; }

/* ---- specs --------------------------------------------------------------- */

.specs {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
}
.specs > div { padding: 1.5rem 1.4rem; background: var(--panel); border-right: 1px solid var(--line); }
.specs > div:last-child { border-right: 0; }
.specs strong { display: block; font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 750; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.specs span { display: block; margin-top: 0.35rem; font-size: 0.88rem; color: var(--muted); }

/* ---- features ------------------------------------------------------------ */

.section-title { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 720; margin-bottom: 2rem; }
.features { padding: clamp(4rem, 9vw, 6.5rem) 0 0; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.2rem 3rem; }
.feature-grid article { padding-top: 1.2rem; border-top: 1px solid var(--line-strong); }
.feature-grid h3 { font-size: 1.15rem; font-weight: 680; }
.feature-grid p { margin-top: 0.55rem; color: var(--fg-2); }

/* ---- how ----------------------------------------------------------------- */

.how { padding: clamp(4rem, 9vw, 6.5rem) 0 0; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.steps li { padding: 1.5rem; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; }
.num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: rgba(34, 211, 238, 0.12); color: var(--cyan); font-weight: 750; margin-bottom: 1rem;
}
.steps h3 { font-size: 1.1rem; font-weight: 680; }
.steps p { margin-top: 0.45rem; color: var(--fg-2); font-size: 0.95rem; }
.req { margin-top: 1.4rem; font-size: 0.88rem; color: var(--muted); max-width: 52rem; }

/* ---- support ------------------------------------------------------------- */

.support { padding: clamp(4rem, 9vw, 6.5rem) 0; }
.support-card {
  display: flex; gap: 1.8rem; align-items: flex-start;
  padding: clamp(1.6rem, 4vw, 2.6rem); border-radius: 22px;
  background: linear-gradient(180deg, #151923, var(--panel));
  border: 1px solid var(--line-strong);
}
.support-mark { flex: none; width: 72px; height: 72px; }
.support h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); font-weight: 720; }
.support p { margin-top: 0.8rem; color: var(--fg-2); max-width: 40rem; }
.support .cta { margin-top: 1.5rem; }

/* ---- footer -------------------------------------------------------------- */

.foot {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-top: 1.6rem; padding-bottom: 2.4rem; border-top: 1px solid var(--line);
  font-size: 0.85rem; color: var(--faint);
}
.foot a { color: var(--muted); }
.foot .legal { flex-basis: 100%; margin: 0 0 0.6rem; max-width: 60rem; font-size: 0.8rem; line-height: 1.55; }
.support .gift { margin-top: 1rem; font-size: 0.82rem; color: var(--muted); }

/* ---- small screens ------------------------------------------------------- */

@media (max-width: 880px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .hero-shot { order: 2; }
  .specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .specs > div:nth-child(2) { border-right: 0; }
  .specs > div:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .top nav a:not(:last-child) { display: none; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .support-card { flex-direction: column; }
  .cta .btn { flex: 1 1 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before { animation: none !important; transition: none !important; }
}