/* ── Reset & base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg:        #0d1117;
  --color-bg-card:   #161b22;
  --color-bg-alt:    #21262d;
  --color-border:    #30363d;
  --color-text:      #e6edf3;
  --color-text-muted:#8b949e;
  --color-accent:    #58a6ff;
  --color-accent-dim:#1f6feb;
  --color-green:     #3fb950;
  --color-yellow:    #d29922;
  --color-red:       #f85149;
  --font-sans:       -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono:       ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius:          8px;
  --radius-lg:       12px;
  --shadow:          0 1px 3px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3);
  --transition:      160ms ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

/* ── Utility ──────────────────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding-block: 5rem; }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: .75rem;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .6rem 1.25rem;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-dim);
  color: #fff;
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: var(--color-accent);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  text-decoration: none;
}

/* ── Badge ───────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .2rem .6rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  font-size: .75rem;
  color: var(--color-text-muted);
}

/* ── Navigation ──────────────────────────────────────────────────────── */
.nav-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 1rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
}
.nav-logo:hover { color: var(--color-accent); text-decoration: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: .9rem;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-text); text-decoration: none; }

/* ── Hero ────────────────────────────────────────────────────────────── */
.hero {
  padding-block: 6rem 5rem;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(31,111,235,.18), transparent);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: .3rem .9rem;
  background: rgba(31,111,235,.15);
  border: 1px solid rgba(88,166,255,.3);
  border-radius: 2rem;
  color: var(--color-accent);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
}

/* ── Screenshots ─────────────────────────────────────────────────────── */
.screenshots-section {
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
}

.screenshot-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.screenshot-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
}

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

.screenshot-card figcaption {
  padding: .85rem 1rem;
  font-size: .85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* ── Features ────────────────────────────────────────────────────────── */
.features-section {
  border-bottom: 1px solid var(--color-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  border-color: var(--color-accent-dim);
  box-shadow: 0 0 0 1px rgba(31,111,235,.2);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(31,111,235,.12);
  border-radius: var(--radius);
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: .4rem;
}

.feature-card p {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.feature-card code {
  font-family: var(--font-mono);
  font-size: .82em;
  background: var(--color-bg-alt);
  padding: .1em .35em;
  border-radius: 4px;
  color: var(--color-text);
}

/* ── Quick Start ─────────────────────────────────────────────────────── */
.quickstart-section {
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--color-accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  margin-top: .15rem;
}

.step-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: .5rem;
}

.step-body p {
  font-size: .9rem;
  color: var(--color-text-muted);
  margin-bottom: .75rem;
}

pre {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
}

pre code {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--color-text);
  line-height: 1.65;
}

.quickstart-alt {
  max-width: 760px;
  margin-inline: auto;
  padding: 1.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.quickstart-alt p {
  font-size: .9rem;
  color: var(--color-text-muted);
  margin-bottom: .75rem;
}

/* ── Security ────────────────────────────────────────────────────────── */
.security-section {
  border-bottom: 1px solid var(--color-border);
}

.security-table-wrapper {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.security-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.security-table th,
.security-table td {
  padding: .75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.security-table thead th {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.security-table tbody tr:nth-child(even) td {
  background: var(--color-bg-card);
}

.security-table code {
  font-family: var(--font-mono);
  font-size: .82em;
  background: var(--color-bg-alt);
  padding: .1em .35em;
  border-radius: 4px;
}

.security-notice {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: 1rem 1.25rem;
  background: rgba(217, 153, 34, .08);
  border: 1px solid rgba(217, 153, 34, .3);
  border-radius: var(--radius);
  color: var(--color-yellow);
  font-size: .9rem;
  max-width: 760px;
  margin-inline: auto;
}

.security-notice svg { flex-shrink: 0; margin-top: .1rem; }
.security-notice p { color: var(--color-text-muted); line-height: 1.5; }

/* ── CTA ─────────────────────────────────────────────────────────────── */
.cta-section {
  background: radial-gradient(ellipse 70% 60% at 50% 120%, rgba(31,111,235,.15), transparent);
  border-bottom: 1px solid var(--color-border);
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: .75rem;
}

.cta-inner p {
  color: var(--color-text-muted);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.footer {
  padding-block: 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .85rem;
  color: var(--color-text-muted);
}

.footer-inner a {
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.footer-inner a:hover { color: var(--color-text); text-decoration: none; }

.footer-inner nav {
  display: flex;
  gap: 1.25rem;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-links a:not(.btn) { display: none; }
  .screenshots-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .step { flex-direction: column; }
  .footer-inner { flex-direction: column; text-align: center; }
}