/* PNGTuber Studio site theme: the app's own dark palette. */

:root {
  --bg: #17181d;
  --surface: #23252d;
  --band: #2c2e38;
  --border: #40444c;
  --heading: #dcdee6;
  --text: #c8cbd4;
  --dim: #8f93a1;
  --accent: #8fb4e8;
  --accent-dark: #21232a;
  --good: #86c28a;
  --warn: #d8b87a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

header {
  background: var(--band);
  border-bottom: 1px solid var(--border);
}

header .container {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--heading);
  font-weight: 600;
  text-decoration: none;
  font-size: 1.05rem;
}

.brand img { height: 32px; width: auto; }

nav { margin-left: auto; display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; }

nav a {
  color: var(--text);
  text-decoration: none;
}

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

.dev-logo img { height: 26px; width: auto; display: block; }

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text);
}

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

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-dark);
}

.btn-primary:hover { filter: brightness(1.1); color: var(--accent-dark); }

.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
}

/* Hero */

.hero { text-align: center; padding: 4rem 0 2.5rem; }

.hero h1 { color: var(--heading); font-size: 2.4rem; margin: 0 0 0.5rem; }

.hero .tagline { font-size: 1.25rem; color: var(--text); margin: 0 0 0.4rem; }

.hero .sub { color: var(--dim); margin: 0 0 1.6rem; }

.hero .cta { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }

.hero .note { color: var(--dim); font-size: 0.9rem; margin-top: 0.8rem; }

.shot {
  width: 100%;
  max-width: 860px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 2rem auto 0;
  display: block;
}

/* Sections */

section { padding: 2.5rem 0; }

section h2 {
  color: var(--heading);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

section h3 { color: var(--heading); margin-top: 2rem; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.features li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
}

.features .emoji { font-size: 1.4rem; margin-right: 0.5rem; }

.features strong { color: var(--heading); display: block; margin-bottom: 0.25rem; }

.steps { counter-reset: step; list-style: none; padding: 0; }

.steps li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin-bottom: 0.8rem;
}

.steps strong { color: var(--heading); }

/* Tables */

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  background: var(--surface);
}

th, td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.8rem;
  text-align: left;
}

th { background: var(--band); color: var(--heading); }

code, kbd {
  background: var(--band);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.9em;
  color: var(--heading);
}

pre {
  background: var(--band);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
}

pre code { background: none; border: none; padding: 0; }

/* Help layout */

.doc img {
  width: 100%;
  max-width: 860px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0.75rem 0 1.25rem;
  display: block;
}

.doc .toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
}

.doc .toc a { color: var(--accent); text-decoration: none; }

.callout {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 0.8rem 1.2rem;
  margin: 1rem 0;
}

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

/* Legal pages */

.legal h1 { color: var(--heading); }
.legal h2 { color: var(--heading); font-size: 1.15rem; }
.legal { max-width: 760px; }
.legal .updated { color: var(--dim); font-size: 0.9rem; }

/* Footer */

footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 1.5rem 0 2rem;
  color: var(--dim);
  font-size: 0.9rem;
}

footer .container {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  align-items: center;
}

footer a { color: var(--dim); }
footer a:hover { color: var(--accent); }
footer .spacer { margin-left: auto; }