* {
  box-sizing: border-box;
}

h1, h2, h3, p {
  overflow-wrap: break-word;
}

img {
  max-width: 100%;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background: var(--window-bg);
  color: var(--label-text);
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  transition: background 0.3s ease;
}

a {
  color: var(--accent-2);
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -3;
  background: var(--window-bg);
}

.ambient-glow {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  display: var(--ambient-display);
}

.ambient-glow::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ambient-1);
}

.ambient-glow::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ambient-2);
}

.dot-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

#starfield {
  /* Canvas is a replaced element — inset:0 alone does NOT stretch a
     replaced element's box the way it does a div; without an explicit
     width/height it falls back to its intrinsic bitmap size (set in
     starfield.js from window.innerWidth/scrollHeight), which silently
     made the whole page wider than the viewport on mobile. */
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: rgba(10, 10, 20, 0.55);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
}

.brand-name {
  background: var(--title-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.control-group label {
  font-size: 0.68rem;
  color: var(--muted-text);
  font-weight: 600;
}

.themed-select {
  background: var(--input-bg);
  color: var(--input-text);
  border: 1px solid var(--input-border);
  border-radius: var(--button-radius);
  padding: 6px 10px;
  font-size: 0.85rem;
  cursor: pointer;
}

.themed-select:focus {
  outline: none;
  border-color: var(--input-focus-border);
}

/* ---------- Hero ---------- */

.hero {
  text-align: center;
  padding: 96px 24px 64px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  margin: 0 0 20px;
  background: var(--title-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: var(--title-glow);
  line-height: 1.15;
}

.hero p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--muted-text);
  font-size: 1.05rem;
}

/* ---------- Sections ---------- */

section {
  padding: 56px 24px;
}

.section-heading {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  margin: 0 0 36px;
  background: var(--title-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Video demo ---------- */

/* ~1/3 of a desktop viewport's width (not full-bleed) — min() so it still
   shrinks sensibly on narrower desktop/laptop widths instead of overflowing;
   the 900px media query below switches to a near-full-width embed on
   tablet/mobile, where 33vw would be illegibly small. */
.video-frame {
  width: min(34vw, 620px);
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: var(--card-radius);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-glow);
  background: var(--card-bg);
  overflow: hidden;
  position: relative;
}

@media (max-width: 900px) {
  .video-frame {
    width: 92%;
  }
}

.video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

#demo-animation {
  width: 100%;
  height: 100%;
  display: block;
}

.video-caption {
  text-align: center;
  color: var(--muted-text);
  font-size: 0.8rem;
  max-width: 720px;
  margin: 12px auto 0;
}

/* ---------- Feature cards ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  max-width: 1080px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-glow);
  padding: 22px 20px;
}

.feature-card:nth-child(2) {
  border-color: var(--card-border-blue);
  box-shadow: var(--card-glow-blue);
}

.feature-card:nth-child(3) {
  border-color: var(--card-border-cyan);
  box-shadow: var(--card-glow-cyan);
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--label-text);
}

.feature-card p {
  margin: 0;
  color: var(--muted-text);
  font-size: 0.9rem;
}

/* ---------- App picker ---------- */

.picker-wrap {
  display: flex;
  justify-content: center;
}

.app-picker {
  position: relative;
  display: inline-block;
}

.picker-btn {
  background: var(--primary-button-bg);
  color: var(--primary-button-fg);
  border: none;
  border-radius: var(--button-radius);
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.picker-btn:hover {
  box-shadow: var(--primary-button-glow);
}

.picker-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-glow);
  padding: 6px;
  display: none;
  flex-direction: column;
  z-index: 20;
}

.picker-menu.open {
  display: flex;
}

.picker-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--input-text);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.picker-item:not(.disabled):hover {
  background: rgba(255, 255, 255, 0.06);
}

.picker-item.disabled {
  color: var(--muted-text);
  opacity: 0.55;
  cursor: not-allowed;
}

.badge-soon {
  font-size: 0.68rem;
  border: 1px solid var(--muted-text);
  border-radius: 999px;
  padding: 1px 8px;
  white-space: nowrap;
}

/* ---------- Support form ---------- */

.support-form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.support-form label {
  font-size: 0.82rem;
  color: var(--label-text);
  font-weight: 600;
  margin-top: 10px;
}

.support-form input[type="email"],
.support-form textarea {
  background: var(--input-bg);
  color: var(--input-text);
  border: 1px solid var(--input-border);
  border-radius: var(--button-radius);
  padding: 10px 12px;
  font-size: 0.9rem;
  font-family: inherit;
  resize: vertical;
}

.support-form input[type="email"]:focus,
.support-form textarea:focus {
  outline: none;
  border-color: var(--input-focus-border);
}

.support-form .picker-btn {
  margin-top: 16px;
  align-self: center;
}

.support-form .picker-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

/* Honeypot — invisible to real visitors, still present in the DOM/tab
   order-free so bots that fill every field trip it. See
   js/support-form.js and the Worker's handleSubmit. */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.support-status {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted-text);
  min-height: 1.2em;
  margin: 10px 0 0;
}

.support-status.is-error {
  color: var(--error-text);
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 36px 24px 48px;
  text-align: center;
  color: var(--muted-text);
  font-size: 0.82rem;
  border-top: 1px solid var(--card-border);
}

.site-footer a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-credit {
  margin-top: 8px;
  opacity: 0.8;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .site-header {
    justify-content: center;
    text-align: center;
  }

  .hero {
    padding: 72px 20px 48px;
  }

  section {
    padding: 40px 20px;
  }

  .picker-menu {
    left: 0;
    right: 0;
    transform: none;
    min-width: 0;
    width: 100%;
  }
}