/* ============================================================
   BYODNS Marketing Site — Custom Styles
   ============================================================ */

:root {
  --bg-base:        #0d1117;
  --bg-surface:     #161b22;
  --bg-card:        #1c2230;
  --bg-card-hover:  #212840;
  --accent:         #00c9a7;
  --accent-dim:     #009e84;
  --text-primary:   #e6edf3;
  --text-muted:     #8b949e;
  --border:         #30363d;
  --danger:         #f85149;
  --warning:        #f0a930;
}

/* ── Base ──────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
}

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

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  background-color: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}

.navbar-brand img { height: 28px; }

.nav-link {
  color: var(--text-muted) !important;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
  padding: 0.4rem 0.9rem !important;
}
.nav-link:hover { color: var(--text-primary) !important; }

.btn-nav-cta {
  background-color: var(--accent);
  color: #000 !important;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 1rem !important;
  transition: background-color 0.2s, transform 0.15s;
}
.btn-nav-cta:hover {
  background-color: var(--accent-dim);
  transform: translateY(-1px);
  text-decoration: none !important;
}

/* ── Hero ──────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,201,167,0.12) 0%, transparent 70%),
              var(--bg-base);
  padding: 7rem 0 4rem;
}

.hero-badge {
  display: inline-block;
  background: rgba(0,201,167,0.12);
  color: var(--accent);
  border: 1px solid rgba(0,201,167,0.35);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.3rem 1rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero-title .accent { color: var(--accent); }

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.google-play-badge { height: 56px; transition: transform 0.2s; }
.google-play-badge:hover { transform: scale(1.04); }

.hero-app-icon {
  width: 80px;
  height: 80px;
  margin-left: 1.25rem;
  border-radius: 20px;
  box-shadow: 0 0 0 1px var(--border);
}

.hero-screenshot-placeholder {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 9/19;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  gap: 0.5rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}
.hero-screenshot-placeholder svg { opacity: 0.35; }

/* ── Section base ──────────────────────────────────────────── */
section { padding: 6rem 0; }
section:nth-of-type(odd) { background-color: var(--bg-base); }
section:nth-of-type(even) { background-color: var(--bg-surface); }

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 3.5rem;
}

/* ── How It Works ──────────────────────────────────────────── */
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  height: 100%;
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}
.step-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0,201,167,0.12);
  border: 1px solid rgba(0,201,167,0.35);
  color: var(--accent);
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.step-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.step-desc { color: var(--text-muted); font-size: 0.9rem; }

/* ── Screenshots ───────────────────────────────────────────── */
#screenshots { background-color: var(--bg-base); }

.screenshot-frame {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 28px;
  aspect-ratio: 9/19;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  gap: 0.6rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
  transition: border-color 0.25s, transform 0.25s;
}
.screenshot-frame:hover {
  border-color: rgba(0,201,167,0.4);
  transform: translateY(-6px);
}
.screenshot-frame .label { font-weight: 600; color: var(--text-muted); }
.screenshot-icon { font-size: 2.5rem; opacity: 0.3; }

/* ── Feature Cards ─────────────────────────────────────────── */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 1.75rem;
  height: 100%;
  transition: border-color 0.25s, transform 0.25s;
}
.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.feature-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.feature-desc { color: var(--text-muted); font-size: 0.875rem; }

/* ── Security Levels Table ─────────────────────────────────── */
.levels-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.levels-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.levels-table th {
  background: var(--bg-surface);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.levels-table td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.levels-table tr:last-child td { border-bottom: none; }
.levels-table tr:hover td { background: var(--bg-card-hover); }

.badge-free {
  background: rgba(139,148,158,0.15);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-pro {
  background: rgba(0,201,167,0.12);
  color: var(--accent);
  border: 1px solid rgba(0,201,167,0.35);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Comparison Table ──────────────────────────────────────── */
.comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.comparison-header {
  display: grid;
  grid-template-columns: 1fr 120px 120px;
  gap: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 0.85rem;
}
.comparison-header .col-plan { text-align: center; }
.comparison-header .col-plan.pro { color: var(--accent); }

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 120px 120px;
  gap: 0;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  align-items: center;
}
.comparison-row:last-child { border-bottom: none; }
.comparison-row:hover { background: var(--bg-card-hover); }

.comparison-row .col-check { text-align: center; font-size: 1.1rem; }
.check-yes { color: var(--accent); }
.check-no  { color: var(--text-muted); opacity: 0.4; }

/* ── Privacy ───────────────────────────────────────────────── */
.privacy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 1.75rem;
  height: 100%;
  transition: border-color 0.25s;
}
.privacy-card:hover { border-color: rgba(0,201,167,0.4); }
.privacy-icon { font-size: 2rem; margin-bottom: 1rem; }
.privacy-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.privacy-desc { color: var(--text-muted); font-size: 0.875rem; }

/* ── CTA Banner ────────────────────────────────────────────── */
#cta {
  background: radial-gradient(ellipse 80% 100% at 50% 100%, rgba(0,201,167,0.15) 0%, transparent 70%),
              var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 6rem 0;
}

/* ── Footer ────────────────────────────────────────────────── */
footer {
  background-color: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}
footer a { color: var(--text-muted); }
footer a:hover { color: var(--text-primary); text-decoration: none; }

/* ── Utilities ─────────────────────────────────────────────── */
.text-accent { color: var(--accent) !important; }
.text-muted-custom { color: var(--text-muted) !important; }
.divider-line { border-color: var(--border); opacity: 1; }

.btn-primary-accent {
  background-color: var(--accent);
  color: #000;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  transition: background-color 0.2s, transform 0.15s;
  display: inline-block;
}
.btn-primary-accent:hover {
  background-color: var(--accent-dim);
  transform: translateY(-2px);
  color: #000;
  text-decoration: none;
}

.btn-outline-accent {
  background-color: transparent;
  color: var(--accent);
  font-weight: 600;
  border: 1.5px solid var(--accent);
  border-radius: 8px;
  padding: 0.7rem 1.75rem;
  font-size: 0.95rem;
  transition: background-color 0.2s, color 0.2s;
  display: inline-block;
}
.btn-outline-accent:hover {
  background-color: rgba(0,201,167,0.1);
  color: var(--accent);
  text-decoration: none;
}

/* ── Responsive tweaks ─────────────────────────────────────── */
@media (max-width: 767.98px) {
  #hero { padding-top: 6rem; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-screenshot-placeholder { margin: 2rem auto 0; }
  .comparison-header,
  .comparison-row { grid-template-columns: 1fr 90px 90px; }
}