/*
 * Storm Central website. The app's design language (docs/DESIGN.md): black
 * canvas, flat neutral surfaces, hairlines, one blue accent; colour lives in
 * the data (the radar), not the chrome. Motion is driven from main.js through
 * classes and custom properties, and switched off for reduced motion.
 */

:root {
  --canvas: #000;
  --surface-1: #0e0f11;
  --surface-2: #16181b;
  --surface-3: #1f2226;
  --line: #24272c;
  --line-strong: #33373e;
  --ink: #ececed;
  --ink-2: #a8acb3;
  --ink-3: #80858d;
  --accent: #5b9cf6;
  --accent-ink: #06101f;
  --red: #f0524f;
  --orange: #f59e0b;
  --go: #34d399;
  --radius-control: 6px;
  --radius-panel: 10px;
  --radius-window: 12px;
  --nav-h: 64px;
  --gutter: 16px;
  --max: 1200px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
  color-scheme: dark;
}

@media (min-width: 640px) {
  :root {
    --gutter: 24px;
  }
}

/* Lenis (smooth scrolling) */
html.lenis,
html.lenis body {
  height: auto;
}
.lenis.lenis-stopped {
  overflow: clip;
}
.lenis.lenis-smooth iframe {
  pointer-events: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-padding-top: calc(var(--nav-h) + 8px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: color-mix(in oklab, var(--accent) 40%, transparent);
}

.i {
  width: 20px;
  height: 20px;
  flex: none;
}

.skip {
  position: fixed;
  left: 12px;
  top: -48px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius-control);
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s;
}
.skip:focus {
  top: 12px;
}

/* Scroll progress, a hairline under the nav. */
.progress {
  position: fixed;
  inset: 0 0 auto;
  height: 2px;
  z-index: 60;
  pointer-events: none;
}
.progress span {
  display: block;
  height: 100%;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(var(--scroll, 0));
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-control);
  border: 1px solid transparent;
  font: 500 15px/1.2 var(--sans);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s;
}
.btn-sm {
  min-height: 36px;
  padding: 0 14px;
  font-size: 14px;
}
.btn-lg {
  min-height: 52px;
  padding: 0 22px;
  font-size: 16px;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover {
  background: #77aef8;
}
.btn-secondary {
  background: var(--surface-2);
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn-secondary:hover {
  background: var(--surface-3);
  border-color: #464b53;
}
.btn-icon {
  display: inline-flex;
}
.btn small {
  font-size: 13px;
  font-weight: 400;
  opacity: 0.75;
}
.btn .arrow {
  transition: transform 0.25s var(--ease-out);
}

/* ── Navigation ──────────────────────────────────────────────────────── */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition:
    background-color 0.3s,
    border-color 0.3s;
}
.nav.scrolled {
  background: rgb(0 0 0 / 0.86);
  border-bottom-color: var(--line);
}
.nav-inner {
  max-width: var(--max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
}
.brand img {
  border-radius: 7px;
}
.nav-links {
  display: none;
  gap: 4px;
  margin-left: 8px;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-control);
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.on {
  color: var(--ink);
}
.nav-end {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-control);
  color: var(--ink-2);
  transition: color 0.2s;
}
.icon-link:hover {
  color: var(--ink);
}
@media (min-width: 820px) {
  .nav-links {
    display: flex;
  }
}

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

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: calc(var(--nav-h) + 32px) var(--gutter) 96px;
  overflow: hidden;
  isolation: isolate;
}
.hero-radar {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  transform-origin: 50% 50%;
}
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 55% at 50% 50%, rgb(0 0 0 / 0.72), rgb(0 0 0 / 0.25) 70%, transparent),
    linear-gradient(to bottom, rgb(0 0 0 / 0.55), transparent 22%, transparent 70%, #000);
}
.hero-inner {
  max-width: 880px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  will-change: transform, opacity;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  margin-bottom: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  background: rgb(14 15 17 / 0.8);
  color: var(--ink-2);
  font-size: 14px;
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--go);
}
.hero h1 {
  font-size: clamp(2.5rem, 7vw + 0.5rem, 5.4rem);
  line-height: 1.02;
  font-weight: 600;
  letter-spacing: -0.035em;
}
.hero .lead {
  max-width: 40rem;
  margin-top: 24px;
  color: var(--ink-2);
  font-size: clamp(1.05rem, 0.6vw + 0.95rem, 1.25rem);
  line-height: 1.55;
}
.cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 36px;
}
.hero-meta {
  margin-top: 20px;
  color: var(--ink-3);
  font-size: 14px;
}
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 24px;
  translate: -50% 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--ink-3);
  animation: bob 2.4s ease-in-out infinite;
}
.scroll-cue:hover {
  color: var(--ink);
}
@keyframes bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}
@media (max-width: 520px) {
  .cta {
    flex-direction: column;
    align-self: stretch;
  }
  .cta .btn {
    width: 100%;
  }
}

/* ── App window frame ────────────────────────────────────────────────── */

.window {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-window);
  background: var(--surface-1);
  overflow: hidden;
  box-shadow:
    0 30px 80px rgb(0 0 0 / 0.6),
    0 0 0 1px rgb(255 255 255 / 0.02) inset;
}
.window-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-1);
}
.window-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--surface-3);
}
.window-bar span {
  flex: 1;
  margin-right: 51px;
  text-align: center;
  color: var(--ink-3);
  font-size: 12px;
}
.window img {
  width: 100%;
  height: auto;
}

/* ── Showcase: the window tilts up into place ────────────────────────── */

.showcase {
  position: relative;
  padding: 0 var(--gutter);
  margin-top: -64px;
}
.showcase-stage {
  max-width: 1120px;
  margin: 0 auto;
  perspective: 1600px;
}
.showcase .window {
  --p: 1;
  transform-origin: 50% 0%;
  transform: rotateX(calc((1 - var(--p)) * 26deg)) scale(calc(0.86 + var(--p) * 0.14)) translateY(calc((1 - var(--p)) * 48px));
  opacity: calc(0.35 + var(--p) * 0.65);
  will-change: transform, opacity;
}

/* ── Sections ────────────────────────────────────────────────────────── */

section[id] {
  scroll-margin-top: var(--nav-h);
}
.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  padding: 0 var(--gutter);
  text-align: center;
}
.section-head h2,
.alerts-copy h2 {
  font-size: clamp(1.9rem, 2.6vw + 1rem, 3rem);
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.025em;
}
.section-head p {
  margin-top: 16px;
  color: var(--ink-2);
  font-size: 1.075rem;
}

.ticks {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.ticks li {
  position: relative;
  padding-left: 26px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.5;
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.45em;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* ── Tour ────────────────────────────────────────────────────────────── */

.tour {
  padding: 140px 0 40px;
}
.tour-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.step {
  padding: 32px 0;
}
.step + .step {
  border-top: 1px solid var(--line);
}
.step-num {
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}
.step h3 {
  margin-top: 8px;
  font-size: clamp(1.5rem, 1.2vw + 1.1rem, 2rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.step > p:not(.step-num) {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 1.05rem;
}
.step-shot {
  width: 100%;
  height: auto;
  margin-top: 24px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-panel);
}
.tour-screen {
  display: none;
}

@media (min-width: 960px) {
  .tour-grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 64px;
  }
  .step {
    min-height: 88vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0;
    opacity: 0.3;
    transition: opacity 0.5s;
  }
  .step + .step {
    border-top: 0;
  }
  .step.is-active {
    opacity: 1;
  }
  .step-shot {
    display: none;
  }
  .tour-screen {
    display: block;
  }
  .tour-sticky {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
    height: calc(100vh - var(--nav-h) - 48px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
  }
}

.tour-shots {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--canvas);
}
.tour-shots img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.03);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.9s var(--ease-out);
}
.tour-shots img.on {
  opacity: 1;
  transform: none;
}
.tour-dots {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.tour-dots li {
  position: relative;
  padding-top: 12px;
  color: var(--ink-3);
  font-size: 13px;
  transition: color 0.3s;
}
.tour-dots li::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--line-strong);
}
.tour-dots li::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  transition: transform 0.6s var(--ease-out);
}
.tour-dots li.on {
  color: var(--ink);
}
.tour-dots li.on::after {
  transform: scaleX(1);
}

/* ── Alerts ──────────────────────────────────────────────────────────── */

.alerts {
  padding: 120px 0;
}
.alerts-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  gap: 56px;
  align-items: center;
}
.alerts-copy > p {
  margin-top: 16px;
  color: var(--ink-2);
  font-size: 1.075rem;
}
@media (min-width: 900px) {
  .alerts-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 80px;
  }
}

.phone {
  justify-self: center;
  width: min(320px, 86vw);
  aspect-ratio: 9 / 19;
  padding: 10px;
  border-radius: 48px;
  background: #1b1d21;
  border: 1px solid var(--line-strong);
  box-shadow: 0 40px 100px rgb(0 0 0 / 0.7);
}
.phone-screen {
  position: relative;
  height: 100%;
  border-radius: 38px;
  overflow: hidden;
  padding: 14px 12px;
  background:
    radial-gradient(120% 70% at 20% 10%, #12305e 0%, transparent 60%),
    radial-gradient(90% 60% at 90% 90%, #3b1a4f 0%, transparent 65%),
    #05070c;
}
.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 600;
}
.phone-island {
  width: 90px;
  height: 26px;
  border-radius: 14px;
  background: #000;
}
.phone-date {
  margin-top: 26px;
  text-align: center;
  color: rgb(255 255 255 / 0.8);
  font-size: 14px;
}
.phone-clock {
  text-align: center;
  font-size: 64px;
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -0.03em;
}
.notes {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.note {
  display: grid;
  gap: 2px;
  padding: 10px 12px 11px;
  border-radius: 18px;
  background: rgb(38 40 46 / 0.86);
  font-size: 12.5px;
  line-height: 1.35;
  color: rgb(255 255 255 / 0.8);
}
.note strong {
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}
.note-app {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
  color: rgb(255 255 255 / 0.6);
  font-size: 11.5px;
}
.note-app img {
  border-radius: 4px;
}
.note-app time {
  margin-left: auto;
}
.note-red strong::before,
.note-orange strong::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--red);
  vertical-align: 1px;
}
.note-orange strong::before {
  background: var(--orange);
}

/* ── Numbers ─────────────────────────────────────────────────────────── */

.numbers {
  padding: 40px 0;
  border-block: 1px solid var(--line);
  background: var(--surface-1);
}
.numbers-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px 24px;
}
@media (min-width: 900px) {
  .numbers-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.num {
  display: grid;
  gap: 6px;
}
.num-value {
  font-size: clamp(2.6rem, 3vw + 1.5rem, 3.75rem);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.num-label {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.4;
}

/* ── Features ────────────────────────────────────────────────────────── */

.features {
  padding: 140px 0 120px;
}
.feature-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: 16px;
}
.feature {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface-1);
  transition: border-color 0.25s;
}
.feature:hover {
  border-color: var(--line-strong);
}
.feature .i {
  width: 24px;
  height: 24px;
  color: var(--accent);
}
.feature h3 {
  margin-top: 18px;
  font-size: 17px;
  font-weight: 600;
}
.feature p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.55;
}

/* ── Trailer ─────────────────────────────────────────────────────────── */

.trailer {
  padding: 40px 0 120px;
}
.video {
  position: relative;
  width: calc(100% - 2 * var(--gutter));
  max-width: 1040px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-window);
  overflow: hidden;
  background: var(--surface-1);
}
.video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  transition:
    transform 0.3s var(--ease-out),
    opacity 0.3s;
}
.video-play .i {
  width: 30px;
  height: 30px;
  margin-left: 4px;
  fill: currentColor;
}
.video-play:hover {
  transform: scale(1.06);
}
.video.playing .video-play {
  opacity: 0;
  pointer-events: none;
}

/* ── Download ────────────────────────────────────────────────────────── */

.download {
  padding: 120px 0 100px;
  border-top: 1px solid var(--line);
}
.dl-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 16px;
}
.dl {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-window);
  background: var(--surface-1);
  transition: border-color 0.3s;
}
.dl.is-you {
  order: -1;
  border-color: color-mix(in oklab, var(--accent) 70%, var(--line));
}
.dl.is-you::after {
  content: "Your device";
  position: absolute;
  top: 24px;
  right: 24px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
}
.dl-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}
.dl-head .i {
  width: 28px;
  height: 28px;
  color: var(--ink-2);
}
.dl h3 {
  font-size: 20px;
  font-weight: 600;
}
.dl-sub {
  color: var(--ink-3);
  font-size: 14px;
}
.dl-btn {
  width: 100%;
}
.dl-note {
  margin-top: 4px;
  color: var(--ink-3);
  font-size: 14px;
  line-height: 1.5;
}
.dl-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
}
.dl-qr[hidden] {
  display: none;
}
.dl-qr canvas {
  width: 96px;
  height: 96px;
  padding: 6px;
  border-radius: 6px;
  background: #fff;
  image-rendering: pixelated;
}
.dl-qr p {
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.45;
}
.dl-foot {
  max-width: var(--max);
  margin: 32px auto 0;
  padding: 0 var(--gutter);
  color: var(--ink-3);
  font-size: 14px;
  text-align: center;
}
.dl-foot a {
  color: var(--ink-2);
}
.dl-foot a:hover {
  color: var(--ink);
}

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

.footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 calc(40px + env(safe-area-inset-bottom));
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}
.footer-brand {
  max-width: 460px;
}
.footer-brand p {
  margin-top: 14px;
  color: var(--ink-3);
  font-size: 14px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-content: start;
}
.footer-links a {
  color: var(--ink-2);
  font-size: 15px;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--ink);
}
.footer-fine {
  max-width: var(--max);
  margin: 32px auto 0;
  padding: 0 var(--gutter);
  color: var(--ink-3);
  font-size: 13px;
}

/* ── Reveal on scroll (only when the script runs) ────────────────────── */

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.9s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 80ms);
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}

.js .note {
  opacity: 0;
  transform: translateY(-14px) scale(0.96);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.7s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.js .phone.in .note {
  opacity: 1;
  transform: none;
}

/* ── Reduced motion ──────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .js .reveal,
  .js .note {
    opacity: 1;
    transform: none;
  }
  .showcase .window {
    transform: none;
    opacity: 1;
  }
}