:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f7f9;
  --color-text: #1a1d23;
  --color-text-muted: #5b6270;
  --color-border: #e4e6eb;
  --color-primary: #2f5bff;
  --color-primary-dark: #1e3fcc;
  --color-brand-teal: #0f9e92;
  --max-width: 1080px;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

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

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

a:hover {
  text-decoration: underline;
}

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

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}

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

.nav-logo {
  height: 34px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    display: none;
    gap: 16px;
  }
  .nav-links.open {
    display: flex;
  }
}

/* Hero */
.hero {
  padding: 80px 24px 64px;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg));
}

.hero h1 {
  font-size: 2.6rem;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 28px;
}

.hero-secondary {
  font-size: 1rem;
  margin: 20px auto 0;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  transition: background 0.15s ease;
}

.btn:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-bg-alt);
}

/* Sections */
section {
  padding: 56px 24px;
}

section.alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 1.8rem;
  margin: 0 0 8px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 40px;
}

/* Cards / grid */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: var(--max-width);
  margin: 0 auto;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--color-bg);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.card p {
  color: var(--color-text-muted);
  margin: 0 0 16px;
}

.app-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.app-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), #6a8bff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
}

.app-icon-img {
  background: none;
  object-fit: cover;
}

.focus-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-brand-teal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  width: fit-content;
}

/* Content pages (privacy, contact, about) */
.page-header {
  padding: 48px 24px 24px;
  text-align: center;
}

.page-header h1 {
  margin: 0 0 8px;
}

.legal-logo {
  height: 56px;
  width: auto;
  margin: 0 auto 20px;
}

.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.prose h2 {
  margin-top: 36px;
  font-size: 1.3rem;
}

.prose p {
  color: var(--color-text-muted);
}

.prose code {
  background: var(--color-bg-alt);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

.placeholder {
  background: #fff8e1;
  border: 1px dashed #d8b74a;
  color: #6b5410;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.95em;
}

.contact-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  max-width: 800px;
  margin: 0 auto;
}

.contact-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.contact-item p {
  margin: 0;
  font-size: 1.05rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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