:root {
  --bg: #0b0d12;
  --bg-elevated: #12151d;
  --card: #161a23;
  --border: #232833;
  --text: #eef1f6;
  --text-dim: #a2a9b8;
  --text-faint: #6b7284;
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.15);
  --radius: 16px;
  --max-width: 1080px;
  --nav-height: 72px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.brand .mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #4fd1ff);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #0b0d12;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14.5px;
  color: var(--text-dim);
}

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

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

.nav-toggle { display: none; }

/* Hero */
.hero {
  padding: 88px 0 56px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.hero p {
  color: var(--text-dim);
  font-size: 18px;
  max-width: 560px;
  margin: 0 auto 28px;
}

.hero .badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.badge {
  font-size: 12.5px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
}

/* Section headings */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 24px;
}

.section-head h2 {
  font-size: 22px;
  margin: 0;
  letter-spacing: -0.01em;
}

.section-head p {
  color: var(--text-faint);
  font-size: 14px;
  margin: 0;
}

/* App grid */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  padding-bottom: 80px;
}

.app-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.app-card:hover {
  border-color: #34394a;
  transform: translateY(-2px);
}

.app-card .top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-elevated);
}

.app-card h3 {
  margin: 0 0 4px;
  font-size: 16.5px;
}

.app-card .cat {
  font-size: 12px;
  color: var(--text-faint);
}

.app-card .tagline {
  color: var(--text-dim);
  font-size: 14px;
  margin: 0;
  flex-grow: 1;
}

.app-card .cta {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.empty-state {
  color: var(--text-faint);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  font-size: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid var(--border);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.btn-primary:hover { background: #6d4ef0; }

.btn-secondary {
  background: transparent;
  color: var(--text);
}

.btn-secondary:hover { border-color: #454b5c; }

/* App detail page */
.app-header {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  padding: 48px 0 28px;
  flex-wrap: wrap;
}

.app-header .app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
}

.app-header .meta { flex: 1; min-width: 220px; }

.app-header h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: -0.01em;
}

.app-header .cat {
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 10px;
}

.app-header .tagline {
  color: var(--text-dim);
  font-size: 15.5px;
  margin: 0 0 16px;
}

.app-header .actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.screens {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 8px 0 28px;
  scrollbar-width: thin;
}

.screens img {
  height: 320px;
  width: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.about-app {
  padding: 8px 0 60px;
  max-width: 680px;
}

.about-app h2 {
  font-size: 18px;
  margin: 0 0 12px;
}

.about-app p {
  color: var(--text-dim);
  font-size: 15px;
}

.info-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  padding: 24px 0 60px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.info-row .item .label {
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 4px;
}

.info-row .item .value {
  font-size: 14.5px;
}

.info-row .item .value a { color: var(--accent); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-faint);
  font-size: 13.5px;
  padding-top: 24px;
}

.back-link:hover { color: var(--text-dim); }

/* Generic content pages (about/contact) */
.page {
  padding: 64px 0 80px;
  max-width: 680px;
}

.page h1 {
  font-size: 32px;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

.page p {
  color: var(--text-dim);
  font-size: 16px;
}

.page h2 {
  font-size: 19px;
  margin: 32px 0 12px;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
}

.contact-card .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
}

.contact-card .row:last-child { border-bottom: none; }

.contact-card .row .label { color: var(--text-faint); }

.contact-card .row a { color: var(--accent); font-weight: 600; }

.policy-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.policy-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14.5px;
}

.policy-list a.link { color: var(--accent); font-weight: 600; }

/* Forms (data deletion request, etc.) */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 24px;
  max-width: 460px;
}

.form-field { margin-bottom: 18px; }

.form-field label {
  display: block;
  font-size: 13.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.form-field input,
.form-field select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 14.5px;
  font-family: inherit;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-note {
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 14px;
}

.status-success,
.status-error {
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
  max-width: 460px;
  font-size: 14.5px;
}

.status-success {
  background: rgba(80, 200, 140, 0.08);
  border: 1px solid rgba(80, 200, 140, 0.35);
}

.status-success h3 {
  margin: 0 0 8px;
  color: #6fe3a8;
  font-size: 16px;
}

.status-success p, .status-error p { color: var(--text-dim); margin: 0; }

.status-error {
  background: rgba(255, 100, 100, 0.08);
  border: 1px solid rgba(255, 100, 100, 0.35);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--text-faint);
  font-size: 13px;
}

.footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer nav {
  display: flex;
  gap: 18px;
}

.footer a:hover { color: var(--text-dim); }

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 56px 0 40px; }
  .app-header { padding-top: 32px; }
  .footer .wrap { flex-direction: column; align-items: flex-start; }
}