/* ============================================================
   ToughAlarm — official site
   Design system: "one morning" — the page scrolls from pre-dawn
   dark to morning light. See web/docs/design.md for rationale.
   ============================================================ */

:root {
  /* palette — dawn progression */
  --night-0: #0a0f22;
  --night-1: #151b38;
  --indigo: #2c2352;
  --mauve: #4f3160;
  --dusk-rose: #7a4560;
  --sun-peach: #eeb377;
  --morning: #e9edf0;
  --morning-deep: #dde3e8;

  /* accents */
  --alarm-red: #ff4b3e;
  --alarm-red-deep: #d63b2f;
  --led-amber: #ffc66b;

  /* text */
  --ink: #171c2c;
  --ink-soft: #4a5164;
  --fog: #c9cfdf;
  --fog-strong: #f2f4fa;

  /* type */
  --font-display: "Anton", "Arial Narrow", sans-serif;
  --font-digits: "Doto", "Courier New", monospace;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* rhythm */
  --section-pad: clamp(5rem, 12vh, 9rem);
  --inner-max: 68rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  overflow-x: clip;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--fog-strong);
  background: var(--night-0);
}

/* ---------- top bar ---------- */

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem clamp(1.25rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--night-0) 72%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.wordmark {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  text-decoration: none;
}

.wordmark-en {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  color: var(--alarm-red);
}

.wordmark-alt { color: var(--fog-strong); }

.topnav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.5vw, 1.8rem);
}

.topnav a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--fog);
  text-decoration: none;
}

.topnav a:hover { color: var(--fog-strong); }

.topnav-cta {
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--alarm-red);
  border-radius: 999px;
  color: var(--alarm-red) !important;
}

.topnav-cta:hover {
  background: var(--alarm-red);
  color: var(--night-0) !important;
}

/* ---------- shared section chrome ---------- */

section { padding: var(--section-pad) clamp(1.25rem, 5vw, 3rem); }

.section-inner { max-width: var(--inner-max); margin: 0 auto; }

.timestamp {
  font-family: var(--font-digits);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  color: var(--led-amber);
  margin-bottom: 1.1rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.1rem, 5.5vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: 0.015em;
  margin-bottom: 2.5rem;
  color: inherit;
}

/* ---------- hero (05:59 · deep night) ---------- */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: 7rem;
  background: linear-gradient(180deg, var(--night-0) 0%, var(--night-1) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  width: 100%;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3.2rem, 9vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: 0.01em;
  color: var(--fog-strong);
  margin-bottom: 1.4rem;
}

.hero-sub {
  max-width: 34rem;
  color: var(--fog);
  margin-bottom: 2.2rem;
}

.scroll-hint {
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-digits);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

/* ---------- hero demo: the ringing clock ---------- */

.hero-demo { display: flex; flex-direction: column; gap: 1.4rem; }

.clock-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 1.5rem 0;
}

.ring-waves i {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 240px;
  height: 240px;
  border: 1.5px solid var(--alarm-red);
  border-radius: 50%;
  translate: -50% -50%;
  opacity: 0;
  animation: wave 2.1s linear infinite;
}

.ring-waves i:nth-child(2) { animation-delay: 0.7s; }
.ring-waves i:nth-child(3) { animation-delay: 1.4s; }

@keyframes wave {
  0%   { scale: 0.62; opacity: 0.7; }
  100% { scale: 1.45; opacity: 0; }
}

.silenced .ring-waves i { animation: none; opacity: 0; }

.clock-card {
  position: relative;
  text-align: center;
  padding: 1.6rem 2.6rem 1.4rem;
  border: 1px solid color-mix(in srgb, var(--fog) 22%, transparent);
  border-radius: 1.1rem;
  background: color-mix(in srgb, var(--night-0) 80%, #000 20%);
  box-shadow: 0 0 60px color-mix(in srgb, var(--alarm-red) 22%, transparent);
  animation: jitter 0.45s linear infinite;
}

@keyframes jitter {
  0%, 100% { rotate: 0deg; }
  25% { rotate: 0.7deg; }
  75% { rotate: -0.7deg; }
}

.silenced .clock-card {
  animation: none;
  box-shadow: 0 0 60px color-mix(in srgb, var(--led-amber) 25%, transparent);
}

.clock-state {
  font-family: var(--font-digits);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--alarm-red);
}

.silenced .clock-state { color: var(--led-amber); }

.clock-time {
  font-family: var(--font-digits);
  font-weight: 900;
  font-size: clamp(4rem, 9vw, 6rem);
  line-height: 1.05;
  color: var(--led-amber);
  text-shadow: 0 0 26px color-mix(in srgb, var(--led-amber) 45%, transparent);
}

.clock-date {
  font-family: var(--font-digits);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--fog);
}

/* ---------- hero demo: the task ---------- */

.task-card {
  border: 1px solid color-mix(in srgb, var(--fog) 20%, transparent);
  border-radius: 1.1rem;
  padding: 1.2rem 1.4rem;
  background: color-mix(in srgb, var(--night-1) 65%, transparent);
}

.task-card.wrong { animation: refuse 0.3s linear 2; }

@keyframes refuse {
  0%, 100% { translate: 0 0; }
  25% { translate: -7px 0; }
  75% { translate: 7px 0; }
}

.task-label {
  font-family: var(--font-digits);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--fog);
  margin-bottom: 0.8rem;
}

.task-row { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }

.task-question {
  font-family: var(--font-digits);
  font-weight: 900;
  font-size: 1.7rem;
  color: var(--fog-strong);
  white-space: nowrap;
}

.task-input {
  width: 6rem;
  padding: 0.5rem 0.8rem;
  font-family: var(--font-digits);
  font-weight: 900;
  font-size: 1.5rem;
  text-align: center;
  color: var(--led-amber);
  background: var(--night-0);
  border: 1px solid color-mix(in srgb, var(--fog) 30%, transparent);
  border-radius: 0.6rem;
}

.task-input:focus-visible {
  outline: 2px solid var(--led-amber);
  outline-offset: 2px;
}

.task-submit {
  padding: 0.65rem 1.3rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--night-0);
  background: var(--alarm-red);
  border: 0;
  border-radius: 0.6rem;
  cursor: pointer;
}

.task-submit:hover { background: var(--alarm-red-deep); }

.task-submit:focus-visible {
  outline: 2px solid var(--fog-strong);
  outline-offset: 2px;
}

.silenced .task-submit { background: var(--led-amber); }

.task-feedback {
  margin-top: 0.8rem;
  font-size: 0.85rem;
  color: var(--fog);
  min-height: 1.4em;
}

/* ---------- 06:00 how it works (night → indigo) ---------- */

.how {
  background: linear-gradient(180deg, var(--night-1) 0%, var(--indigo) 100%);
}

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}

.step {
  border-top: 2px solid color-mix(in srgb, var(--led-amber) 55%, transparent);
  padding-top: 1.1rem;
}

.step-time {
  font-family: var(--font-digits);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--led-amber);
  margin-bottom: 0.5rem;
}

.step-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  margin-bottom: 0.6rem;
}

.step-body { color: var(--fog); font-size: 0.98rem; }

/* ---------- 06:01 tasks (indigo → mauve) ---------- */

.tasks {
  background: linear-gradient(180deg, var(--indigo) 0%, var(--mauve) 100%);
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.2rem;
}

.tcard {
  border: 1px solid color-mix(in srgb, var(--fog) 22%, transparent);
  border-radius: 1rem;
  padding: 1.5rem 1.4rem;
  background: color-mix(in srgb, var(--night-0) 30%, transparent);
  transition: translate 160ms ease, border-color 160ms ease;
}

.tcard:hover {
  translate: 0 -4px;
  border-color: color-mix(in srgb, var(--led-amber) 60%, transparent);
}

.tcard-sample {
  font-family: var(--font-digits);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--led-amber);
  margin-bottom: 1.1rem;
  min-height: 2.2em;
}

.tcard-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.tag-beta {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.4rem;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--night-0);
  background: var(--led-amber);
  border-radius: 999px;
}

.tcard-body { color: var(--fog); font-size: 0.95rem; }

/* ---------- 06:04 built stubborn (mauve → dusk rose) ---------- */

.stubborn {
  background: linear-gradient(180deg, var(--mauve) 0%, var(--dusk-rose) 100%);
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.6rem, 4vw, 2.8rem) clamp(1.6rem, 5vw, 4rem);
}

.feature-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 0.45rem;
}

.feature-title::before {
  content: "■ ";
  color: var(--led-amber);
  font-size: 0.7em;
  vertical-align: 0.15em;
}

.feature-body { color: var(--fog); font-size: 0.98rem; }

/* ---------- 06:09 sunrise band (decorative) ---------- */

.sunrise {
  position: relative;
  height: clamp(14rem, 34vh, 22rem);
  overflow: hidden;
  background: linear-gradient(
    180deg,
    var(--dusk-rose) 0%,
    #b06a5e 34%,
    var(--sun-peach) 66%,
    var(--morning) 100%
  );
}

.sunrise-stamp {
  position: absolute;
  top: 1.6rem;
  left: 50%;
  translate: -50% 0;
  color: color-mix(in srgb, var(--night-0) 78%, transparent);
  margin: 0;
}

.sun {
  position: absolute;
  left: 50%;
  bottom: -4.5rem;
  translate: -50% 0;
  width: 9rem;
  height: 9rem;
  border-radius: 50%;
  background: radial-gradient(circle, #fff3d8 0%, var(--led-amber) 55%, transparent 72%);
  filter: blur(1px);
  transition: translate 1.2s ease-out;
}

.sunrise.risen .sun { translate: -50% -3.5rem; }

/* ---------- 06:12 privacy (morning light) ---------- */

.privacy {
  background: var(--morning);
  color: var(--ink);
}

.privacy .timestamp { color: var(--alarm-red-deep); }

.privacy-lede {
  max-width: 40rem;
  font-size: 1.15rem;
  margin-bottom: 2.4rem;
  color: var(--ink);
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.2rem;
}

.pcard {
  background: #fff;
  border-radius: 1rem;
  padding: 1.4rem 1.4rem;
  border: 1px solid var(--morning-deep);
}

.pcard h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.pcard p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- 06:15 download (full morning) ---------- */

.download {
  background: linear-gradient(180deg, var(--morning) 0%, var(--morning-deep) 100%);
  color: var(--ink);
  text-align: center;
}

.download .timestamp { color: var(--alarm-red-deep); }

.download-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 10vw, 6.5rem);
  line-height: 0.98;
  margin-bottom: 1rem;
}

.download-sub {
  color: var(--ink-soft);
  margin-bottom: 2.2rem;
  font-size: 1.1rem;
}

.download .store-badges { justify-content: center; }

.finePrint {
  max-width: 34rem;
  margin: 2.4rem auto 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

/* ---------- store badges ---------- */

.store-badges { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.badge {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  padding: 0.6rem 1.3rem;
  border: 1px solid color-mix(in srgb, var(--fog) 35%, transparent);
  border-radius: 0.8rem;
  text-decoration: none;
  color: var(--fog-strong);
  background: color-mix(in srgb, var(--night-0) 55%, transparent);
  transition: border-color 160ms ease;
}

.badge:hover { border-color: var(--led-amber); }

.badge-small { font-size: 0.68rem; color: var(--fog); letter-spacing: 0.04em; }

.badge-big {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
}

.badge-dark {
  color: var(--morning);
  background: var(--ink);
  border-color: var(--ink);
}

.badge-dark .badge-small { color: var(--morning-deep); }

.badge-dark:hover { border-color: var(--alarm-red-deep); background: #232a3d; }

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

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.6rem clamp(1.25rem, 5vw, 3rem);
  background: var(--morning-deep);
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.footer .wordmark-en { font-size: 0.9rem; color: var(--alarm-red-deep); }
.footer .wordmark-alt { color: var(--ink); }

.footer nav { display: flex; gap: 1.2rem; }
.footer a { color: var(--ink-soft); }
.footer a:hover { color: var(--ink); }

/* ---------- reveal on scroll ----------
   Hidden state only applies once JS has booted (body.js-anim),
   so content stays visible without JavaScript. */

.js-anim .reveal { opacity: 0; translate: 0 26px; transition: opacity 0.7s ease, translate 0.7s ease; }
.js-anim .reveal.shown { opacity: 1; translate: 0 0; }

/* ---------- responsive ---------- */

@media (max-width: 56rem) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 6rem; }
  .steps { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .topnav a:not(.topnav-cta) { display: none; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ring-waves i { animation: none; opacity: 0.35; scale: 1; }
  .clock-card { animation: none; }
  .task-card.wrong { animation: none; }
  .reveal { opacity: 1; translate: 0 0; transition: none; }
  .sun { transition: none; }
  .tcard { transition: none; }
}