/* InLinkr V1 Landing Page — site/style.css
 * Premium, dark, mobile-first marketing placeholder.
 * Expandable into the full inlinkr.com website.
 */

:root {
  --bg: #000000;
  --bg-elevated: #09090b;
  --text: #ffffff;
  --text-muted: #a1a1aa;
  --text-subtle: #71717a;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-glow: rgba(249, 115, 22, 0.18);
  --border: rgba(255, 255, 255, 0.08);
  --card: rgba(255, 255, 255, 0.03);
  --max-width: 1200px;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

button {
  font: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 6rem 1.5rem 5rem;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.03), transparent 30%),
    var(--bg);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 3rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 0.75rem;
  border-radius: 0.5rem;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-headline {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #ffffff 0%, #d4d4d8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  margin: 0 auto 2.5rem;
  max-width: 600px;
  color: var(--text-muted);
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.875rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border: none;
  box-shadow: 0 0 0 0 var(--accent-glow);
}

.btn-primary:not(:disabled):hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-primary:disabled {
  opacity: 0.85;
  cursor: default;
}

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

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

/* Sections */
.section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}

.section-heading {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
}

.section-lead {
  max-width: 700px;
  margin: 0 auto 3rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.6;
  text-align: center;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 1.5rem;
  border-radius: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
}

.feature h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* Products */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  border-radius: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-glow);
}

.product-card-dim {
  background: transparent;
}

.product-card-dim:hover {
  border-color: var(--border);
  box-shadow: none;
}

.product-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.25rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent);
}

.product-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.product-title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.product-desc {
  flex: 1;
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.badge {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--accent);
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.2);
}

.badge-muted {
  color: var(--text-subtle);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border);
}

/* Footer */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.copyright {
  margin: 0;
  color: var(--text-subtle);
  font-size: 0.875rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

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

/* Tablet */
@media (min-width: 640px) {
  .hero {
    padding: 8rem 2rem 6rem;
  }

  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }

  .btn {
    padding: 1rem 2rem;
    min-height: 3.25rem;
  }

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .hero {
    padding: 10rem 2rem 8rem;
  }

  .section {
    padding: 7rem 0;
  }

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .product-card,
  .product-card:hover,
  .btn-primary:not(:disabled):hover,
  .btn-secondary:hover {
    transition: none;
    transform: none;
  }
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

::selection {
  background: var(--accent);
  color: #000;
}