/* ============================================
   Owl's Vault Inc. — Minimalist Tech Aesthetic
   Light/Dark mode via prefers-color-scheme
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Light mode (default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-subtle: rgba(99, 102, 241, 0.08);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08);
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-border: rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #1e1e1e;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border: #2e2e2e;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-subtle: rgba(129, 140, 248, 0.1);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --nav-bg: rgba(15, 15, 15, 0.85);
    --nav-border: rgba(255, 255, 255, 0.06);
  }
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

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

/* --- Container --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

.logo-text {
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  letter-spacing: -0.01em;
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  padding: 16px 24px;
  flex-direction: column;
  gap: 16px;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
}

.mobile-menu a:hover {
  color: var(--text-primary);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero-content {
  max-width: 640px;
}

.hero-logo {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  margin: 0 auto 32px;
  box-shadow: var(--shadow-lg);
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--accent-subtle);
  color: var(--accent);
  border: 1px solid transparent;
}

.btn-accent {
  background: #059669;
  color: #ffffff;
}

.btn-accent:hover {
  background: #047857;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* --- Sections --- */
.section {
  padding: 48px 0;
}

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

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 24px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* --- About Grid --- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.about-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.about-icon {
  color: var(--accent);
  margin-bottom: 16px;
}

.about-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --- Locations Grid --- */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.location-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.location-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.location-icon {
  color: var(--accent);
  margin-bottom: 16px;
}

.location-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.location-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Shop Section --- */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}

.shop-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  width: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.shop-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.shop-icon {
  color: var(--accent);
  margin-bottom: 20px;
}

.shop-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.shop-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 28px;
}

/* --- Connect Grid --- */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}

.connect-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.connect-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.connect-card svg {
  color: var(--accent);
}

.connect-label {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.connect-handle {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 8px;
}

.footer-logo {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

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

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

.footer-email {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

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

.footer-email a:hover {
  color: var(--accent);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* --- Buy Direct Page --- */
.buy-direct-page {
  padding: 88px 0 32px;
  text-align: center;
}

.buy-direct-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.buy-direct-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 520px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

.direct-options-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 560px;
  margin: 0 auto 32px;
}

.direct-option-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
}

.direct-option-card .about-icon {
  margin-bottom: 10px;
}

.direct-option-card h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.direct-option-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.buy-direct-subtitle {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0 auto;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 12px;
  flex-shrink: 0;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
}

.step-card a {
  color: var(--accent);
  font-weight: 500;
}

.step-card a:hover {
  text-decoration: underline;
}

.step-card-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
  width: 100%;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.82rem;
}

/* --- About Card Links --- */
.about-card a {
  color: var(--accent);
  font-weight: 500;
}

.about-card a:hover {
  text-decoration: underline;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  /* Navigation */
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  /* Homepage hero */
  .hero {
    padding: 100px 24px 48px;
    min-height: auto;
  }

  .hero-description {
    margin-bottom: 24px;
  }

  /* Sections */
  .section {
    padding: 28px 0;
  }

  .section-title {
    margin-bottom: 8px;
  }

  .section-subtitle {
    margin-bottom: 16px;
  }

  /* About grid */
  .about-grid {
    grid-template-columns: 1fr;
    margin-top: 16px;
    gap: 12px;
  }

  .about-card {
    padding: 16px 18px;
  }

  .about-icon {
    margin-bottom: 10px;
  }

  .about-card h3 {
    margin-bottom: 6px;
  }

  /* Connect grid */
  .connect-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    gap: 12px;
  }

  .connect-card {
    padding: 16px 16px;
    gap: 8px;
  }

  /* Buy Direct page */
  .buy-direct-page {
    padding: 76px 0 16px;
  }

  .buy-direct-desc {
    margin-bottom: 16px;
    font-size: 0.9rem;
  }

  .buy-direct-subtitle {
    font-size: 1.1rem;
    margin-bottom: 12px;
  }

  .direct-options-row {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 20px;
  }

  .direct-option-card {
    padding: 16px 16px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .step-card {
    padding: 16px 16px;
  }

  .step-number {
    width: 28px;
    height: 28px;
    font-size: 0.85rem;
    margin-bottom: 8px;
  }

  .step-card-buttons {
    padding-top: 8px;
  }

  /* Footer */
  .footer {
    padding: 28px 0;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }
}