/* Proskida — Protern-inspired design */

:root {
  --color-navy: #1e1545;
  --color-navy-light: #2a1f5e;
  --color-blue: #3bb3e5;
  --color-blue-hover: #2da0d0;
  --color-text: #1a1a2e;
  --color-text-muted: #555568;
  --color-bg: #ffffff;
  --color-bg-gray: #f5f5f7;
  --color-border: #e2e2e8;
  --max-width: 1080px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-blue-hover);
}

h1, h2, h3 {
  line-height: 1.2;
  color: var(--color-navy);
}

/* ──────────────────────────────
   Header
   ────────────────────────────── */

.site-header {
  background: var(--color-bg);
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.site-logo {
  height: 36px;
  width: auto;
}

/* ──────────────────────────────
   Hero
   ────────────────────────────── */

.hero {
  background: var(--color-navy);
  color: #fff;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 1.25rem;
  line-height: 1.7;
}

.hero p strong {
  color: #fff;
}

.hero-image img {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  aspect-ratio: 16/9;
}

/* ──────────────────────────────
   Buttons
   ────────────────────────────── */

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  margin-right: 0.75rem;
  margin-top: 0.5rem;
}

.btn-primary {
  background: var(--color-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-blue-hover);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  border-color: #fff;
  color: #fff;
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
  border-color: #fff;
  color: #fff;
}

/* ──────────────────────────────
   Sections
   ────────────────────────────── */

.section {
  padding: 5rem 0;
}

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

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

.section-dark {
  background: var(--color-navy);
  color: #fff;
}

.section-dark h2,
.section-dark h3 {
  color: #fff;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.75);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin: 0 0 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.125rem;
  margin: 0 auto 3rem;
  max-width: 600px;
}

.section-dark .section-title {
  color: #fff;
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* ──────────────────────────────
   About Protern
   ────────────────────────────── */

.section-header {
  margin-bottom: 2.5rem;
}

.protern-logo-link {
  display: inline-block;
  margin-bottom: 1rem;
}

.protern-logo {
  height: 32px;
  width: auto;
}

.protern-logo-link:hover {
  opacity: 0.8;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin: 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  color: var(--color-text-muted);
  margin: 0 0 1.25rem;
}

.about-text ul {
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
  padding-left: 1.25rem;
}

.about-text li {
  margin-bottom: 0.4rem;
}

.about-image img {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  aspect-ratio: 3/2;
}

/* ──────────────────────────────
   Cards (Use Cases)
   ────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.25s, transform 0.25s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(30, 21, 69, 0.1);
  transform: translateY(-2px);
}

.card-icon img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  object-position: top left;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 1.25rem 1.5rem 0.5rem;
}

.card p {
  color: var(--color-text-muted);
  margin: 0 1.5rem 1rem;
  font-size: 0.9375rem;
}

.card-link {
  display: inline-block;
  margin: 0 1.5rem 1.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-blue);
}

.card-link:hover {
  color: var(--color-blue-hover);
}

/* ──────────────────────────────
   Company Background
   ────────────────────────────── */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 2rem;
}

.two-col h2 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
}

.two-col p {
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.stat-block {
  margin-bottom: 1.5rem;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-blue);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.muted {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ──────────────────────────────
   Product List (Ownership)
   ────────────────────────────── */

.product-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.product-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
}

.product-item strong {
  display: block;
  font-size: 1.125rem;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.product-item span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.section-cta {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* ──────────────────────────────
   Contact
   ────────────────────────────── */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.contact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
}

.contact-card h3 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

.contact-card p {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
}

/* ──────────────────────────────
   Footer
   ────────────────────────────── */

.site-footer {
  background: var(--color-navy);
  padding: 2.5rem 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  height: 32px;
  margin-bottom: 0.75rem;
  filter: brightness(0) invert(1);
}

.site-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ──────────────────────────────
   Responsive
   ────────────────────────────── */

@media (max-width: 768px) {
  .hero .hero-inner {
    grid-template-columns: 1fr;
    padding: 2.5rem 2rem;
    gap: 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-image {
    order: -1;
  }

  .hero .btn {
    display: block;
    text-align: center;
    margin-right: 0;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

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

  .two-col {
    grid-template-columns: 1fr;
  }

  .product-list {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 3rem 0;
  }

  .container {
    padding: 0 1.25rem;
  }
}