:root {
  --bg: #f5f5f7;
  --bg-alt: #ffffff;
  --accent: #0072ff;
  --accent-soft: rgba(0, 114, 255, 0.08);
  --text: #15151f;
  --muted: #5b5b6b;
  --border: #e0e0ea;
  --radius: 10px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);
  --max-width: 1080px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.5;
}

/* Layout */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 64px 0;
}

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

.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  margin: 0 0 8px;
  font-size: 1.9rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
}

/* Header / nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: rgba(245, 245, 247, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(224, 224, 234, 0.7);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, #0f172a, #1f2937);
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.35);
}

.logo-initial {
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-weight: 600;
  font-size: 0.98rem;
}

.logo-tagline {
  font-size: 0.76rem;
  color: var(--muted);
}

/* Nav links */

.main-nav a {
  margin-left: 18px;
  text-decoration: none;
  font-size: 0.94rem;
  color: var(--muted);
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
}

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

.main-nav a.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* Hero */

.hero {
  padding: 72px 0 56px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 16px;
  font-size: 2.4rem;
}

.hero-copy p {
  margin: 0 0 18px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.hero-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-card {
  background-color: var(--bg-alt);
  padding: 22px 22px 18px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(224, 224, 234, 0.7);
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.4rem;
}

.hero-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.hero-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Strip */

.strip {
  padding: 24px 0 16px;
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.strip-item h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.strip-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card {
  background-color: var(--bg-alt);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(224, 224, 234, 0.8);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-image {
  height: 160px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


.placeholder-image {
  background-image: linear-gradient(135deg, #111827, #1f2937);
}

.card-body {
  padding: 16px 16px 14px;
}

.card-body h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card-body p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.card-meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.section-cta {
  margin-top: 28px;
}

/* Process */

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.process-step {
  background-color: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 18px 16px 14px;
}

.step-number {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.process-step h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.process-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Page hero */

.page-hero {
  padding: 64px 0 28px;
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: 2.1rem;
}

.page-hero p {
  margin: 0;
  color: var(--muted);
}

/* Projects */

.project-grid {
  display: grid;
  gap: 30px;
}

.project {
  background-color: var(--bg-alt);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr);
}

.project-image-wrap {
  position: relative;
  overflow: hidden;
  background-color: #111827;
}

.project-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 0.4s ease;
}

.project:hover .project-photo {
  transform: scale(1.05);
}

.project-body {
  padding: 18px 18px 16px;
}

.project-body h3 {
  margin: 0 0 4px;
}

.project-location {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.project-body p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.project-meta {
  margin: 0;
  padding-left: 16px;
  color: var(--muted);
  font-size: 0.86rem;
}

/* Split layout */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

/* Lists */

.bullet-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.bullet-list li + li {
  margin-top: 4px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid rgba(15, 23, 42, 0.06);
  color: var(--text);
  background-color: var(--bg-alt);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, box-shadow 0.15s ease,
    transform 0.08s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #0072ff, #00c6ff);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 16px 35px rgba(37, 99, 235, 0.4);
}

.btn.ghost {
  background-color: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.12);
}

.btn.primary:hover {
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.5);
}

/* Contact card */

.contact-card {
  background-color: var(--bg-alt);
  padding: 22px 22px 18px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  max-width: 540px;
}

/* Footer */

.site-footer {
  padding: 28px 0 18px;
  background-color: #0f172a;
  color: rgba(248, 250, 252, 0.86);
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.1fr 1.2fr 1.2fr;
  gap: 20px;
  font-size: 0.9rem;
}

.footer-brand {
  font-weight: 600;
  margin-bottom: 6px;
}

.site-footer p {
  margin: 0 0 6px;
  color: rgba(148, 163, 184, 0.95);
}

.site-footer a {
  color: rgba(191, 219, 254, 0.95);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(51, 65, 85, 0.9);
  margin-top: 16px;
  padding-top: 12px;
  font-size: 0.78rem;
  color: rgba(148, 163, 184, 0.95);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner,
  .strip-grid,
  .card-grid,
  .process-grid,
  .project,
  .split,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .project {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 56px;
  }
}

@media (max-width: 640px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 10px;
    padding-bottom: 8px;
    gap: 6px;
    height: auto;
  }

  .main-nav a {
    margin-left: 0;
    margin-right: 16px;
  }

  .hero-copy h1 {
    font-size: 1.9rem;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }
}