/* Desk — private remote desktop platform */
:root {
  --bg: #0b0f17;
  --bg-elevated: #121826;
  --bg-card: #151c2c;
  --bg-soft: #1a2336;
  --border: rgba(148, 163, 184, 0.14);
  --text: #e8eef9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #3b82f6;
  --accent-2: #22d3ee;
  --accent-soft: rgba(59, 130, 246, 0.14);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
  --max: 1120px;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f6f8fc;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-soft: #eef2f8;
  --border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --accent: #2563eb;
  --accent-2: #0891b2;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(59, 130, 246, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(34, 211, 238, 0.12), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.brand-mark svg {
  width: 20px;
  height: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.7rem 1.1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}

.btn-primary:hover {
  filter: brightness(1.06);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-soft);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
  padding: 0.55rem 0.75rem;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
}

/* Hero */
.hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin: 0 0 1rem;
}

.hero h1 span {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 40rem;
  margin: 0 0 1.6rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.trust-row strong {
  color: var(--text-muted);
  font-weight: 600;
}

.hero-card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: 1.4rem;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.terminal {
  font-family: var(--mono);
  font-size: 0.84rem;
  background: #070b12;
  color: #c7d2fe;
  border-radius: 12px;
  padding: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.12);
}

[data-theme="light"] .terminal {
  background: #0f172a;
}

.terminal .ok {
  color: #34d399;
}

.terminal .muted {
  color: #64748b;
}

.terminal .accent {
  color: #22d3ee;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem;
}

.stat .num {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.stat .lbl {
  color: var(--text-dim);
  font-size: 0.78rem;
}

/* Sections */
section {
  padding: 3.5rem 0;
}

.section-head {
  margin-bottom: 1.8rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 42rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h3 {
  margin: 0.7rem 0 0.45rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent-2);
}

/* Download */
.download-panel {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 1.25rem;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.panel h3 {
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.field label {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
}

.field input,
.field select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  font: inherit;
}

.field input:focus,
.field select:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent);
  border-color: transparent;
}

.hint {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.alert {
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
  margin: 0.75rem 0;
}

.alert-error {
  background: rgba(248, 113, 113, 0.12);
  color: #fecaca;
  border: 1px solid rgba(248, 113, 113, 0.25);
}

[data-theme="light"] .alert-error {
  color: #b91c1c;
}

.alert-ok {
  background: rgba(52, 211, 153, 0.12);
  color: #a7f3d0;
  border: 1px solid rgba(52, 211, 153, 0.25);
}

[data-theme="light"] .alert-ok {
  color: #047857;
}

.platform-list {
  display: grid;
  gap: 0.65rem;
}

.platform-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0.95rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
}

.platform-item.unavailable {
  opacity: 0.45;
}

.platform-meta {
  display: grid;
  gap: 0.15rem;
}

.platform-meta strong {
  font-size: 0.95rem;
}

.platform-meta span {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--mono);
  word-break: break-all;
}

.checksum {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.8rem;
  word-break: break-all;
}

.server-box {
  margin-top: 1rem;
  padding: 0.9rem;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px dashed var(--border);
  font-size: 0.88rem;
}

.server-box code {
  font-family: var(--mono);
  color: var(--accent-2);
  font-size: 0.82rem;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  counter-reset: step;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.7rem;
}

.step h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Security */
.security-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.25rem;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.checklist li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.checklist li::before {
  content: "✓";
  color: var(--success);
  font-weight: 700;
  margin-top: 0.1rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  margin-top: 2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-grid h4 {
  margin: 0 0 0.6rem;
  color: var(--text);
  font-size: 0.95rem;
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.footer-grid a {
  color: var(--text-muted);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .download-panel,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .cards,
  .steps {
    grid-template-columns: 1fr 1fr;
  }

  .nav-links {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .cards,
  .steps,
  .stat-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2.5rem;
  }
}