:root {
  --bg: #0d0b0a;
  --bg-elevated: #18150f;
  --bg-elevated-2: #211d17;
  --border: #2a2620;
  --border-strong: #3c3630;
  --text: #f2f1ee;
  --text-muted: #99989f;
  --accent: #f5792a;
  --accent-hover: #ff9248;
  --accent-text: #14120f;
  --warning: #ffb84d;
  --radius: 8px;
  --maxw: 1180px;
  --maxw-narrow: 640px;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-color: var(--border) var(--bg);
}

body {
  font-family: var(--font);
  margin: 0;
  background: var(--bg);
  color: var(--text-muted);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--accent-text);
}

::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 8px;
  border: 3px solid var(--bg);
}

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

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

h1, h2, h3 {
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.6rem;
}

h1 {
  font-size: clamp(1.9rem, 2.1vw + 1.35rem, 2.9rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(1.5rem, 1.2vw + 1.1rem, 2rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

p {
  margin: 0 0 1rem;
  max-width: 62ch;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 2rem;
}

.wrap--narrow {
  max-width: var(--maxw-narrow);
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 11, 10, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand-icon {
  display: block;
  border-radius: 6px;
}

.brand-accent {
  color: var(--accent);
}

#lang-toggle {
  cursor: pointer;
  padding: 0.4rem 0.9rem;
  font: inherit;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color 0.15s ease-out, color 0.15s ease-out;
}

#lang-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
}

/* Hero: two-column on desktop -- copy left, real product screenshot right */
#hero {
  padding: 6rem 2rem 5.5rem;
  animation: rise 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

#hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  align-items: center;
  gap: 3.5rem;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

#hero p {
  font-size: 1.15rem;
  max-width: 44ch;
  margin-bottom: 2.25rem;
}

.hero-shot {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  padding: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-shot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

section:not(#hero) {
  padding: 4rem 2rem;
  border-top: 1px solid var(--border);
}

/* How it works: 3 real-screenshot cards */
#how {
  padding-bottom: 4.5rem;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.how-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.25rem;
  transition: border-color 0.15s ease-out;
}

.how-card-wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1.5rem;
  align-items: center;
}

.how-card-wide figure {
  margin: 0;
}

.how-card:hover {
  border-color: var(--border-strong);
}

.how-card figure {
  margin: 0 0 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
}

.how-card img {
  max-width: 100%;
  height: auto;
  display: block;
}

.how-card h3 {
  color: var(--text);
}

.how-card p {
  margin: 0;
  font-size: 0.92rem;
  max-width: none;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background-color 0.15s ease-out, transform 0.1s ease-out;
}

.cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.cta:active {
  transform: translateY(0);
}

.cta-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.cta-ghost:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--text);
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.75rem;
}

.field {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.field label {
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

select {
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 2rem 0.5rem 0.9rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2399989f' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  cursor: pointer;
  transition: border-color 0.15s ease-out;
}

select:hover {
  border-color: var(--accent);
}

#download-result {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

#download-result p {
  margin: 0;
  max-width: none;
}

.warning {
  color: var(--warning);
  font-size: 0.9rem;
}

.all-versions {
  margin: 1.25rem 0 0;
}

.all-versions a {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
}

.all-versions a:hover {
  color: var(--text);
  text-decoration-color: var(--accent);
}

.video-wrap {
  position: relative;
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.video-note {
  margin: -0.75rem 0 1.5rem;
  max-width: 640px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  text-align: center;
}

.video-placeholder p {
  margin: 0;
  max-width: 32ch;
}

img.zoomable {
  cursor: zoom-in;
}

#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  background: rgba(13, 11, 10, 0.92);
  cursor: zoom-out;
}

#lightbox.open {
  display: flex;
}

#lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
}

footer {
  text-align: center;
  padding: 3rem 2rem 3.5rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.15s ease-out;
}

.footer-link:hover {
  color: var(--accent);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

#feedback fieldset {
  border: 0;
  padding: 0;
  margin: 0 0 1.25rem;
}

#feedback legend {
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  padding: 0;
}

#feedback fieldset label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0 1.25rem 0.5rem 0;
  color: var(--text-muted);
  cursor: pointer;
}

.field-group {
  margin-bottom: 1.25rem;
}

.field-group label {
  display: block;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.versions-field:not([hidden]) {
  display: flex;
  gap: 1rem;
}

.versions-field .field-group {
  flex: 1;
  margin-bottom: 0;
}

#feedback input[type="text"],
#feedback textarea,
#feedback select {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  transition: border-color 0.15s ease-out;
}

#feedback input[type="text"]:hover,
#feedback textarea:hover,
#feedback select:hover {
  border-color: var(--accent);
}

#feedback textarea {
  resize: vertical;
}

#feedback button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

#feedback button[type="submit"]:disabled:hover {
  background: var(--accent);
  transform: none;
}

#feedback-result {
  margin-top: 1rem;
}

#feedback-result .success {
  color: var(--accent);
}

#feedback-result .error {
  color: var(--warning);
}

@media (max-width: 900px) {
  #hero .wrap {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-shot {
    order: -1;
  }

  .how-grid {
    grid-template-columns: 1fr;
  }

  .how-card-wide {
    grid-template-columns: 1fr;
  }

  .how-card-wide figure {
    margin-bottom: 1.1rem;
  }
}

@media (max-width: 640px) {
  header nav {
    padding: 0.85rem 1.25rem;
  }

  .wrap {
    padding: 0 1.25rem;
  }

  #hero {
    padding: 3.5rem 1.25rem 3rem;
  }

  section:not(#hero) {
    padding: 2.75rem 1.25rem;
  }

  .panel {
    padding: 1.25rem;
  }

  .field {
    flex-direction: column;
    align-items: flex-start;
  }

  select {
    width: 100%;
  }

  .versions-field {
    flex-direction: column;
    gap: 1.25rem;
  }
}

/* video guide: section as wide as the player, note + PDF button centered */
#guide { max-width: calc(960px + 4rem); text-align: center; }
#guide h2 { text-align: left; }
#guide .video-note { margin: -0.75rem auto 1.5rem; }

/* support + feedback: one block, same width as the video guide */
#guide, #connect { max-width: calc(960px + 4rem); }
.connect-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 3rem; align-items: start; }
#support .cta { display: flex; justify-content: center; margin-top: 0.75rem; }
@media (max-width: 720px) { .connect-grid { grid-template-columns: 1fr; gap: 2.5rem; } }

.move-banner { background: var(--bg-elevated-2); border-bottom: 1px solid var(--accent); padding: 10px 0; }
.move-banner .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; }
.move-banner p { margin: 0; flex: 1 1 320px; color: var(--text); }
.move-banner strong { color: var(--accent); }
.legacy-dl { margin: 12px 0 0; font-size: 0.85rem; }
#move p { margin: 0 0 12px; }