/* === Color Palette: Cobalt Sienna ===
   Unique scheme - not reusing any prior batch palette */

:root {
  --clr-dark: #16213E;
  --clr-accent: #D0704A;
  --clr-accent-hover: #E08860;
  --clr-cream: #FDFBF7;
  --clr-white: #FFFFFF;
  --clr-muted: #5C6370;
  --clr-secondary: #4F7256;
  --clr-border: #E8E3DA;
  --clr-footer: #0F1A2E;
  --clr-light: #F5F1EA;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, Helvetica Neue, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--clr-dark);
  background: var(--clr-cream);
}

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

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

a:hover {
  color: var(--clr-accent-hover);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navigation (CLASS SELECTOR - never bare nav) ===== */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--clr-dark);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.main-nav .nav-brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-white);
  letter-spacing: -0.5px;
}

.main-nav .nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.main-nav .nav-links a {
  color: #C8CDD5;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.main-nav .nav-links a:hover,
.main-nav .nav-links a:focus {
  color: var(--clr-accent);
}

.main-nav .nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.main-nav .nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== Hero ===== */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: var(--clr-dark);
  color: var(--clr-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 40%, rgba(208,112,74,0.12) 0%, transparent 45%),
    radial-gradient(circle at 75% 60%, rgba(79,114,86,0.12) 0%, transparent 40%);
}

.hero .container {
  position: relative;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--clr-white);
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 650px;
  margin: 0 auto 36px;
  color: #C8CDD5;
  line-height: 1.7;
}

.hero .btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--clr-accent);
  color: var(--clr-white);
  font-weight: 600;
  border-radius: 6px;
  font-size: 1rem;
  transition: background 0.2s;
}

.hero .btn:hover {
  background: var(--clr-accent-hover);
  color: var(--clr-white);
}

/* ===== Section Titles ===== */
.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--clr-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Services ===== */
.services {
  padding: 100px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--clr-white);
  border-radius: 10px;
  padding: 40px 32px;
  border: 1px solid var(--clr-border);
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.service-card .icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  background: var(--clr-cream);
  color: var(--clr-accent);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--clr-dark);
}

.service-card p {
  color: var(--clr-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
  background: var(--clr-white);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--clr-dark);
}

.about-text p {
  color: var(--clr-muted);
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.7;
}

.about-visual {
  background: var(--clr-dark);
  border-radius: 12px;
  padding: 60px 48px;
  text-align: center;
  color: var(--clr-white);
  position: relative;
  overflow: hidden;
}

.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(208,112,74,0.15) 0%, transparent 70%);
}

.about-visual > * {
  position: relative;
}

.about-visual .big-number {
  font-size: 4rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.about-visual .label {
  font-size: 1.1rem;
  color: #C8CDD5;
}

/* ===== Counter Stats ===== */
.counters {
  padding: 80px 0;
  background: var(--clr-dark);
  color: var(--clr-white);
}

.counters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.counter-item .count {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
}

.counter-item .count-label {
  color: #C8CDD5;
  margin-top: 8px;
  font-size: 0.95rem;
  font-weight: 500;
}

/* ===== Contact ===== */
.contact {
  padding: 100px 0;
}

.contact-form {
  max-width: 640px;
  margin: 0 auto;
  background: var(--clr-white);
  border-radius: 12px;
  padding: 48px;
  border: 1px solid var(--clr-border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--clr-dark);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--clr-dark);
  background: var(--clr-cream);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--clr-accent);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form .btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--clr-accent);
  color: var(--clr-white);
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.contact-form .btn-submit:hover {
  background: var(--clr-accent-hover);
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  color: var(--clr-secondary);
  font-weight: 600;
  font-size: 1.1rem;
}

/* ===== Site Footer (Homepage) ===== */
.site-footer {
  background: var(--clr-footer);
  color: #C8CDD5;
  padding: 48px 0 32px;
  margin: 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--clr-white);
  font-size: 1.1rem;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-col p {
  color: #8D95A5;
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-col a {
  color: #8D95A5;
  font-size: 0.9rem;
  text-decoration: none;
  display: block;
  margin-bottom: 8px;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #6B7280;
}

.footer-bottom p {
  line-height: 1.5;
}

.footer-bottom a {
  color: var(--clr-accent);
  font-weight: 500;
}

/* ===== Fade-Up Animation ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}

@media (max-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
  }

  .main-nav .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--clr-dark);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    display: none;
  }

  .main-nav .nav-links.open {
    display: flex;
  }

  .main-nav .nav-toggle {
    display: block;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .hero {
    padding: 120px 0 70px;
  }

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

  .section-title h2 {
    font-size: 1.7rem;
  }

  .about-visual {
    padding: 40px 28px;
  }

  .about-visual .big-number {
    font-size: 2.8rem;
  }

  .services,
  .about,
  .contact {
    padding: 64px 0;
  }
}