:root {
  --accent-2: #6366f1;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
}

[data-theme="dark"] {
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
code { font-family: var(--mono); }

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}
.bg-glow-a {
  width: 520px; height: 520px;
  top: -120px; left: 50%;
  transform: translateX(-50%);
  background: rgba(59, 130, 246, 0.18);
}
.bg-glow-b {
  width: 420px; height: 420px;
  bottom: 10%; right: -80px;
  background: rgba(99, 102, 241, 0.12);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 5vw;
  backdrop-filter: blur(14px);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 700;
  font-size: 1.05rem;
}
.brand-mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(59,130,246,.28), rgba(99,102,241,.22));
  border: 1px solid var(--border);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  color: var(--text-2);
  font-size: .92rem;
  font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; gap: .65rem; align-items: center; }
.nav-toggle { display: none; color: var(--text); font-size: 1.25rem; padding: .35rem .5rem; }

.mobile-nav {
  position: fixed;
  inset: 64px 0 auto 0;
  z-index: 49;
  background: rgba(5, 8, 15, 0.96);
  border-bottom: 1px solid var(--border);
  padding: 1rem 5vw 1.25rem;
  display: grid;
  gap: .75rem;
}
.mobile-nav a { color: var(--text-2); padding: .35rem 0; }
.mobile-nav.hidden { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .65rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .92rem;
  transition: transform .15s, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.25);
}
.btn-secondary {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost { color: var(--text-2); padding-inline: .85rem; }
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: .85rem 1.35rem; font-size: .98rem; }
.btn-block { width: 100%; margin-top: .5rem; }

main { position: relative; z-index: 1; }

.hero {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 3rem;
  align-items: center;
  padding: 5rem 5vw 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pill {
  display: inline-block;
  padding: .35rem .75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text-2);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.gradient-text {
  background: linear-gradient(135deg, #93c5fd, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  color: var(--text-2);
  font-size: 1.08rem;
  max-width: 34rem;
  margin-bottom: 1.75rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 2rem; }

.hero-stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding-right: 1.25rem;
  border-right: 1px solid var(--border);
}
.hero-stats li:last-child { border-right: 0; }
.hero-stats strong { font-size: .95rem; }
.hero-stats span { color: var(--text-3); font-size: .82rem; }

.hero-visual { min-width: 0; }

.dashboard-preview {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17,24,39,.95), rgba(11,16,27,.98));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.preview-top {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.25);
}
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ef4444; }
.dot.amber { background: #f59e0b; }
.dot.green { background: #22c55e; }
.preview-title { margin-left: .5rem; color: var(--text-3); font-size: .78rem; font-family: var(--mono); }
.preview-body { padding: 1rem; }
.preview-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; margin-bottom: .85rem; }
.preview-stat {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .65rem .75rem;
}
.preview-stat span { display: block; color: var(--text-3); font-size: .72rem; }
.preview-stat strong { font-size: 1.2rem; }
.preview-stat.online strong { color: var(--green); }
.preview-cards { display: grid; gap: .55rem; }
.preview-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .7rem .8rem;
  background: rgba(255,255,255,.02);
}
.preview-card.offline { opacity: .75; }
.pc-head { font-size: .82rem; font-weight: 600; margin-bottom: .35rem; display: flex; align-items: center; gap: .45rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.online { background: var(--green); box-shadow: 0 0 8px rgba(34,197,94,.6); }
.status-dot.offline { background: var(--text-3); }
.pc-metrics { display: flex; flex-wrap: wrap; gap: .65rem; color: var(--text-3); font-size: .75rem; font-family: var(--mono); }

.logo-strip {
  text-align: center;
  padding: 1.5rem 5vw 3rem;
  color: var(--text-3);
  font-size: .92rem;
}

.section {
  padding: 4rem 5vw;
  max-width: 1200px;
  margin: 0 auto;
}
.section-alt {
  max-width: none;
  background: rgba(255,255,255,.02);
  border-block: 1px solid var(--border);
}
.section-alt .section-head,
.section-alt .steps { max-width: 900px; margin-inline: auto; }

.section-head { text-align: center; max-width: 680px; margin: 0 auto 2.5rem; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; margin-bottom: .65rem; }
.section-head p { color: var(--text-2); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.feature-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  background: rgba(255,255,255,.02);
  transition: border-color .2s, transform .2s;
}
.feature-card:hover {
  border-color: rgba(59,130,246,.35);
  transform: translateY(-2px);
}
.feature-icon { font-size: 1.5rem; margin-bottom: .75rem; }
.feature-card h3 { font-size: 1.05rem; margin-bottom: .45rem; }
.feature-card p { color: var(--text-2); font-size: .92rem; }

.steps { list-style: none; display: grid; gap: 1.25rem; padding: 0 5vw; }
.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}
.step-num {
  width: 36px; height: 36px;
  border-radius: 999px;
  display: grid; place-items: center;
  background: rgba(59,130,246,.15);
  color: #93c5fd;
  font-weight: 700;
}
.steps h3 { margin-bottom: .35rem; }
.steps p { color: var(--text-2); font-size: .92rem; }

.security-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  background: linear-gradient(135deg, rgba(59,130,246,.06), rgba(99,102,241,.04));
}
.security-panel h2 { margin-bottom: 1rem; }
.check-list { list-style: none; display: grid; gap: .65rem; color: var(--text-2); }
.check-list li::before { content: "✓ "; color: var(--green); font-weight: 700; }
.security-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  background: rgba(0,0,0,.35);
}
.security-card code {
  display: block;
  white-space: pre-wrap;
  font-size: .78rem;
  color: #93c5fd;
  margin-bottom: .75rem;
  line-height: 1.5;
}
.security-card p { color: var(--text-3); font-size: .85rem; }

.cta-band {
  text-align: center;
  padding: 4rem 5vw 5rem;
  max-width: 720px;
  margin: 0 auto;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: .65rem; }
.cta-band p { color: var(--text-2); margin-bottom: 1.25rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 5vw 2rem;
  background: rgba(0,0,0,.25);
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
}
.footer-tag { color: var(--text-3); font-size: .88rem; margin-top: .5rem; }
.footer-grid h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin-bottom: .75rem; }
.footer-grid a, .link-btn {
  display: block;
  color: var(--text-2);
  font-size: .92rem;
  margin-bottom: .45rem;
  text-align: left;
}
.link-btn:hover, .footer-grid a:hover { color: var(--text); }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-3);
  font-size: .82rem;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.modal.hidden { display: none; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(6px);
}
.modal-card {
  position: relative;
  width: min(440px, 100%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.modal-close {
  position: absolute;
  top: .75rem;
  right: .85rem;
  color: var(--text-3);
  font-size: 1.4rem;
  line-height: 1;
}
.modal-brand {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}
.modal-brand h2 { font-size: 1.15rem; margin-bottom: .2rem; }
.modal-brand p { color: var(--text-2); font-size: .88rem; }

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .35rem;
  padding: .25rem;
  background: rgba(255,255,255,.04);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}
.auth-tab {
  padding: .55rem;
  border-radius: 8px;
  color: var(--text-2);
  font-weight: 600;
  font-size: .88rem;
}
.auth-tab.active {
  background: var(--bg-panel);
  color: var(--text);
  box-shadow: 0 1px 0 var(--border);
}

.auth-form label {
  display: block;
  font-size: .82rem;
  color: var(--text-2);
  margin: .75rem 0 .35rem;
}
.auth-form input {
  width: 100%;
  padding: .75rem .85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text);
  font-size: .95rem;
}
.auth-form input:focus {
  outline: 2px solid rgba(59,130,246,.35);
  border-color: rgba(59,130,246,.5);
}
.otp-hint { color: var(--text-2); font-size: .88rem; margin-bottom: .5rem; }

.alert {
  padding: .75rem .85rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  margin-bottom: .75rem;
}
.alert.hidden { display: none; }
.alert-info { background: rgba(59,130,246,.12); border: 1px solid rgba(59,130,246,.25); color: #bfdbfe; }
.alert-error { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.25); color: #fecaca; }
.alert-success { background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.25); color: #bbf7d0; }

.hidden { display: none !important; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .hero-visual { order: -1; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .security-panel { grid-template-columns: 1fr; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: block; }
}

@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats li { border-right: 0; padding-right: 0; }
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.privacy-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  background: rgba(255,255,255,.02);
}
.privacy-card h3 { font-size: 1rem; margin-bottom: .75rem; }
.privacy-card ul {
  list-style: none;
  display: grid;
  gap: .55rem;
  color: var(--text-2);
  font-size: .9rem;
}
.privacy-card li::before { content: "• "; color: var(--accent); }
.privacy-card a { color: #93c5fd; }
.privacy-legal-note {
  text-align: center;
  color: var(--text-3);
  font-size: .88rem;
  margin-top: 1.5rem;
}
.privacy-legal-note a { color: #93c5fd; }

.auth-legal {
  margin-top: .85rem;
  font-size: .78rem;
  color: var(--text-3);
  text-align: center;
}
.auth-legal a { color: #93c5fd; }

.legal-page .legal-main {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 5vw 4rem;
}
.legal-doc h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-bottom: .75rem; }
.legal-updated { color: var(--text-3); font-size: .85rem; margin-bottom: 1rem; }
.legal-intro { color: var(--text-2); margin-bottom: 2rem; font-size: 1.02rem; }
.legal-doc section { margin-bottom: 2rem; }
.legal-doc h2 { font-size: 1.15rem; margin-bottom: .65rem; }
.legal-doc h3 { font-size: .95rem; margin: 1rem 0 .4rem; color: var(--text); }
.legal-doc p, .legal-doc li { color: var(--text-2); font-size: .92rem; margin-bottom: .65rem; }
.legal-doc ul { padding-left: 1.2rem; margin-bottom: .75rem; }
.legal-doc a { color: #93c5fd; }
.legal-back { margin-top: 2rem; }
.legal-footer { padding-top: 1rem; }

@media (max-width: 768px) {
  .privacy-grid { grid-template-columns: 1fr; }
}

.nav-theme.theme-toggle,
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-panel);
  display: inline-grid;
  place-items: center;
  font-size: 1.1rem;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.nav-theme.theme-toggle:hover { background: var(--bg-hover); }

[data-theme="light"] .bg-grid { opacity: 0.35; }
[data-theme="light"] .bg-glow-a { background: rgba(37, 99, 235, 0.08); }
[data-theme="light"] .bg-glow-b { background: rgba(99, 102, 241, 0.06); }
[data-theme="light"] .site-header { box-shadow: 0 1px 0 var(--border); }
[data-theme="light"] .hero-card,
[data-theme="light"] .feature-card,
[data-theme="light"] .step-card,
[data-theme="light"] .modal-card { box-shadow: var(--shadow); }