:root {
  --bg: #050505;
  --bg-alt: #111111;
  --card: #181818;
  --accent: #ff4b00;
  --text: #f5f5f5;
  --muted: #b3b3b3;
  --border: #2a2a2a;
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #222 0, #050505 40%);
  color: var(--text);
}

/* Layout helpers */
.container {
  width: min(1120px, 100% - 3rem);
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  padding: 5rem 0;
  background: rgba(12, 12, 12, 0.96);
}

.section-title-center {
  text-align: center;
  font-size: 2.1rem;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
  color: var(--muted);
  font-size: 0.98rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(5, 5, 5, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0;
}

.logo {
  height: 40px;
}

.nav {
  display: flex;
  gap: 1.6rem;
  align-items: center;
  font-size: 0.9rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 0.2rem;
}

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

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.22s ease-out;
}

.nav a:hover::after {
  width: 100%;
}

.btn-nav {
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #f0f0f0;
  margin: 4px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Buttons */
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #ff7c39);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.35);
}

/* Hero */
.hero {
  padding: 5.5rem 0 4.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero h1 span {
  display: block;
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted);
  margin-top: 0.6rem;
}

.hero p {
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 36rem;
}

.hero-actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-highlight {
  padding: 1.8rem 1.7rem;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, #2a150a 0, #090909 45%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft);
}

.hero-tagline {
  font-size: 0.95rem;
  font-weight: 500;
  color: #ffb08a;
  margin-bottom: 0.8rem;
}

.hero-highlight ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-highlight li {
  margin-bottom: 0.3rem;
}

/* About */
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.about-highlights {
  display: grid;
  gap: 1rem;
}

.stat-card {
  background: rgba(18, 18, 18, 0.96);
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-card .stat {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffb08a;
  margin-bottom: 0.3rem;
}

.stat-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.service-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.service-card h3 {
  font-size: 1rem;
  margin: 0 0 0.7rem;
}

.service-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

/* Philosophy */
.philosophy-points h3 {
  margin-top: 0;
  font-size: 1rem;
}

.philosophy-points ul {
  padding-left: 1.1rem;
  margin: 0.6rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.8rem;
}

.project-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.7rem 1.6rem;
  border: 1px solid var(--border);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
}

.project-tag {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffb08a;
  margin-bottom: 0.4rem;
}

.project-card h3 {
  margin: 0 0 0.1rem;
}

.project-location {
  margin: 0 0 0.8rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.project-card p {
  font-size: 0.9rem;
  color: var(--muted);
}

.project-meta {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Process */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.process-step {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 1.3rem 1.3rem 1.4rem;
  border: 1px solid var(--border);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(255, 75, 0, 0.12);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.6fr);
  gap: 2rem;
  align-items: flex-start;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-list li {
  margin-bottom: 0.4rem;
}

.contact-form {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.7rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.form-row {
  margin-bottom: 1rem;
}

.form-row label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
  color: var(--muted);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #101010;
  color: var(--text);
  padding: 0.65rem 0.8rem;
  font-family: inherit;
  font-size: 0.9rem;
}

.form-row textarea {
  resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: rgba(255, 75, 0, 0.8);
}

.full-width {
  width: 100%;
}

/* Footer */
.site-footer {
  padding: 1.8rem 0;
  background: #050505;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-tagline {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-inner,
  .two-col,
  .project-grid,
  .process-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    gap: 2rem;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 720px) {
  .service-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    padding: 0.6rem 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    inset: 100% 0 auto;
    background: rgba(5, 5, 5, 0.98);
    flex-direction: column;
    padding: 0.7rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease-out, opacity 0.18s ease-out;
  }

  .nav-open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .hero {
    padding-top: 4.5rem;
  }
}