/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #000000;
  --bg-card: #0a0a0a;
  --bg-nav: #000000;
  --text-primary: #e8e8e8;
  --text-secondary: #999999;
  --accent: #6ba3d6;
  --accent-hover: #8fbfef;
  --accent-dark: #4a7fb5;
  --chrome: #c0c0c0;
  --chrome-light: #d9d9d9;
  --border: #1a1a1a;
  --border-shine: #2a2a2a;
  --font-main: 'Inter', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== HEADER / NAV ===== */
.header {
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0;
  padding-bottom: 0;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--chrome-light);
  letter-spacing: 0.5px;
}

.logo img {
  height: 50px;
  width: auto;
  mix-blend-mode: lighten;
}

.logo span {
  color: var(--accent);
}

.header-phone {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-left: auto;
  margin-right: 30px;
}

.header-phone a {
  color: var(--chrome-light);
  font-weight: 600;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-links a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--chrome-light);
  background: rgba(107, 163, 214, 0.08);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--chrome-light);
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== HERO ===== */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: #000;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  background: url('../images/logo.png') center/contain no-repeat;
  opacity: 0.07;
  pointer-events: none;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.15;
  color: var(--chrome-light);
  position: relative;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent) 0%, var(--chrome-light) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  position: relative;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid rgba(107, 163, 214, 0.3);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.btn:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(107, 163, 214, 0.25);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--chrome);
  color: var(--chrome-light);
}

.btn-outline:hover {
  background: rgba(192, 192, 192, 0.1);
  border-color: var(--chrome-light);
  color: #fff;
  box-shadow: 0 4px 20px rgba(192, 192, 192, 0.15);
}

/* ===== SECTION SHARED ===== */
.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--chrome-light);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 48px;
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: border-color 0.3s, transform 0.2s, box-shadow 0.3s;
}

.service-card:hover {
  border-color: var(--border-shine);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(107, 163, 214, 0.08);
}

.service-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--chrome-light);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ===== WHY CHOOSE US ===== */
.why-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.why-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: url('../images/logo.png') center/contain no-repeat;
  opacity: 0.05;
  pointer-events: none;
}

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

.why-item .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.why-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--chrome-light);
}

.why-item p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* ===== GALLERY ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  aspect-ratio: 4/3;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: border-color 0.3s;
}

.gallery-item:hover {
  border-color: var(--border-shine);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ===== CTA BANNER ===== */
.cta-section {
  text-align: center;
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: url('../images/logo.png') center/contain no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.cta-section h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
  color: var(--chrome-light);
  position: relative;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  position: relative;
}

/* ===== SERVICES PAGE ===== */
.service-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: border-color 0.3s;
}

.service-detail:hover {
  border-color: var(--border-shine);
}

.service-detail .service-icon {
  font-size: 2rem;
  flex-shrink: 0;
  margin-bottom: 0;
}

.service-detail h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--chrome-light);
}

.service-detail p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== ABOUT PAGE ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--chrome-light);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-photo {
  aspect-ratio: 4/5;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skills-list {
  list-style: none;
  margin-top: 20px;
}

.skills-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.skills-list li::before {
  content: "\2726 ";
  color: var(--accent);
  font-weight: 700;
}

/* ===== CONTACT PAGE ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--chrome-light);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.contact-item .icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--chrome-light);
}

.contact-item p,
.contact-item a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.contact-form h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--chrome-light);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  background: #000;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(107, 163, 214, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  margin-top: 12px;
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  color: #4caf50;
  display: block;
}

.form-status.error {
  color: #e74c3c;
  display: block;
}

/* ===== PAGE HEADER (inner pages) ===== */
.page-header {
  padding: 60px 0 40px;
  text-align: center;
  background: #000;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: url('../images/logo.png') center/contain no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--chrome-light);
  position: relative;
}

.page-header p {
  color: var(--text-secondary);
  margin-top: 10px;
  position: relative;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-nav);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  margin-top: 60px;
}

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

.footer h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--chrome-light);
}

.footer p,
.footer a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--chrome-light);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.social-links a {
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: color 0.2s;
}

.social-links a:hover {
  color: var(--chrome-light);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

@media (max-width: 768px) {
  .header-phone {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-nav);
    flex-direction: column;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }

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

  .nav-links a {
    padding: 12px 14px;
  }

  .hero {
    padding: 60px 0 50px;
  }

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

  .hero p {
    font-size: 1rem;
  }

  .hero::before,
  .why-section::before,
  .cta-section::before,
  .page-header::before {
    width: 500px;
    height: 500px;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .service-detail {
    flex-direction: column;
  }
}