/* Jamjams marketing site — custom dark theme (no framework). */

:root {
  --bg: #212529;
  --surface: #2b3035;
  --text: #dee2e6;
  --text-muted: #9aa0a6;
  --heading: #f8f9fa;
  --border: #3a3f44;
  --primary: #0d6efd;
  --primary-hover: #0b5ed7;
  --max-width: 1000px;
  --radius: 0.5rem;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

img {
  max-width: 100%;
  height: auto;
}

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

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  color: var(--heading);
  line-height: 1.2;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Visually separates stacked page sections. */
.section {
  border-top: 1px solid var(--border);
  padding-block: 1.5rem;
}

/* ---- Header ---- */
.site-header {
  padding-block: 1rem;
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-right: auto;
  color: #fff;
  font-weight: 700;
}

.brand:hover {
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-nav a {
  padding: 0.5rem;
  color: var(--text-muted);
  border-radius: var(--radius);
}

.site-nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* ---- Hero ---- */
.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  padding-block: 2rem;
}

.hero-text {
  flex: 1 1 340px;
}

.hero-media {
  flex: 1 1 260px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3rem);
  font-weight: 700;
  margin: 0 0 1rem;
}

.hero h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
}

/* ---- Download cards ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  padding-block: 2rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  /* Subtle top-down sheen, matching Bootstrap's old `bg-gradient`. */
  background-image: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.15),
    rgba(255, 255, 255, 0)
  );
}

.card h2 {
  margin: 0 0 1.5rem;
  padding-block: 0.5rem;
}

.card .specs {
  padding-block: 1.5rem;
}

.card .note {
  color: var(--text-muted);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font: inherit;
  font-size: 1.05rem;
  color: #fff;
  background-color: var(--primary);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}

.btn:hover {
  background-color: var(--primary-hover);
  text-decoration: none;
}

.btn-lg {
  font-size: 1.15rem;
  padding: 0.85rem 1.75rem;
}

/* ---- Change log ---- */
.changelog-entry {
  margin-top: 1.25rem;
}

.changelog-entry h3 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
}

.changelog-entry ul {
  margin: 0;
  padding-left: 1.25rem;
}

.changelog-entry li {
  margin-bottom: 0.25rem;
}

/* ---- Support form ---- */
.support-form {
  max-width: 640px;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
}

.support-form input,
.support-form textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font: inherit;
  color: var(--text);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.support-form input:focus,
.support-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* ---- Prose (privacy) ---- */
.prose h1 {
  margin-bottom: 1.5rem;
}

.prose h3 {
  margin-top: 2rem;
  font-size: 1.05rem;
}

/* ---- Footer ---- */
.site-footer {
  margin-block: 2rem 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 700px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: center;
  }
}