* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: #f5f7fb;
  padding-top: 90px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: -999px;
  background: #051e3e;
  color: #ffffff;
  padding: 0.75rem 1rem;
  z-index: 999;
  border-radius: 0.5rem;
  transition:
    left 0.2s ease,
    top 0.2s ease;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  z-index: 10;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand img {
  width: 88px;
  height: auto;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-title {
  color: #6b7280;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-subtitle {
  color: #6b7280;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.main-nav a {
  color: #111827;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: #000000;
}

#about {
  padding: 80px 32px;
  background: #ffffff;
  text-align: center;
  max-width: 1400px;
  margin: 0 auto;
}

#about h2 {
  font-size: 2.75rem;
  font-weight: 800;
  color: #111827;
  margin-bottom: 24px;
}

#about > p {
  font-size: 1.1rem;
  color: #4b5563;
  max-width: 700px;
  margin: 0 auto 60px;
  line-height: 1.8;
}

#about > div {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

#about > div > div {
  padding: 40px 24px;
  background: #f9fafb;
  border-radius: 12px;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

#about > div > div:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

#about > div h3 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #111827;
  margin-bottom: 12px;
}

#about > div p {
  font-size: 1rem;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

#services {
  padding: 80px 32px;
  background:
    linear-gradient(
      135deg,
      rgba(17, 24, 39, 0.85) 0%,
      rgba(31, 41, 55, 0.85) 100%
    ),
    url("https://images.unsplash.com/photo-1486325212027-8081e485255e?w=1200&h=800&fit=crop");
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  color: #ffffff;
  text-align: left;
  max-width: 100%;
  margin: 0 auto;
}

#services h2 {
  font-size: 3rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 60px;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#services p {
  max-width: 1200px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  font-weight: 400;
  letter-spacing: 0.02em;
}

#services p strong {
  color: #ffffff;
  font-weight: 700;
  display: block;
  margin-bottom: 12px;
  font-size: 1.2rem;
}

#services p:last-of-type {
  margin-bottom: 0;
}

#contact {
  position: relative;
  min-height: 100vh;
  padding: 120px 32px 80px;
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.25) 0%,
      rgba(255, 255, 255, 0.25) 100%
    ),
    url("image/building.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
}

#contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  pointer-events: none;
}

#contact h2 {
  position: relative;
  z-index: 1;
  font-size: 3.5rem;
  font-weight: 900;
  color: #111827;
  margin-bottom: 36px;
  letter-spacing: -0.04em;
  text-shadow: none;
}

#contact form {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto 40px;
  padding: 40px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 32px 80px rgba(15, 23, 42, 0.12);
}

#contact form input,
#contact form textarea {
  width: 100%;
  padding: 20px 24px;
  border: 1px solid #e5e7eb;
  border-radius: 40px;
  background: #f8fafc;
  color: #111827;
  font-size: 1rem;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

#contact form input:focus,
#contact form textarea:focus {
  border-color: #051e3e;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

#contact form textarea {
  min-height: 220px;
  resize: vertical;
  grid-column: 1 / -1;
}

#contact form button {
  grid-column: 1 / -1;
  justify-self: center;
  max-width: 280px;
  width: 100%;
  padding: 18px 32px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

#contact form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
}

#contact > div {
  max-width: 520px;
  margin: 0 auto;
  padding: 32px;
  border-radius: 28px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
  text-align: left;
}

#contact > div h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: #111827;
  margin-bottom: 20px;
}

#contact > div p {
  color: #475569;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 14px;
}

.site-footer {
  background: linear-gradient(135deg, #07111f 0%, #11213a 100%);
  color: #e2e8f0;
  padding: 64px 32px 28px;
  margin-top: 40px;
}

.footer-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 32px;
}

.footer-column h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column li,
.footer-column a,
.footer-column p {
  color: #cbd5e1;
  font-size: 0.96rem;
  line-height: 1.7;
}

.footer-column a {
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-column a:hover {
  color: #ffffff;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand img {
  width: 70px;
  height: auto;
}

.footer-brand h3 {
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.footer-brand p {
  margin: 0;
}

.footer-about {
  max-width: 300px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-bottom {
  max-width: 1400px;
  margin: 40px auto 0;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: #94a3b8;
}

@media (max-width: 960px) {
  #contact form {
    grid-template-columns: 1fr;
    padding: 30px;
  }

  #contact form textarea,
  #contact form button {
    grid-column: 1;
  }
}

@media (max-width: 640px) {
  #contact {
    padding: 60px 20px 40px;
  }

  #contact form {
    padding: 24px;
  }

  #contact > div {
    padding: 24px;
  }

  .site-footer {
    padding: 48px 20px 24px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 20;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: #111827;
  border-radius: 999px;
  margin-bottom: 6px;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}

.nav-toggle span:last-child {
  margin-bottom: 0;
}

@media (max-width: 920px) {
  .header-inner {
    padding: 18px 20px;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    background: #ffffff;
    flex-direction: column;
    align-items: center;
    gap: 0;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease;
    border-bottom: 1px solid #e5e7eb;
  }

  .main-nav.open {
    max-height: 320px;
  }

  .main-nav a {
    width: 100%;
    padding: 16px 20px;
    border-top: 1px solid #f3f4f6;
    text-align: center;
    color: #111827;
    background: #ffffff;
  }

  .main-nav a:first-of-type {
    border-top: none;
  }

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .brand-text {
    display: none;
  }

  .brand img {
    width: 72px;
  }

  .main-nav a {
    font-size: 0.95rem;
  }
}

#project {
  padding: 80px 32px 60px;
  background: #f3f6fb;
}

#project h2 {
  max-width: 1400px;
  margin: 0 auto 40px;
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #0f172a;
  text-align: center;
}

.project-card {
  max-width: 1100px;
  margin: 0 auto 80px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
}

#project {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.project-hero {
  overflow: hidden;
  background: #f3f6fb;
}

.project-hero img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}

.project-info {
  background: #051e3e;
  color: #ffffff;
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(280px, 1fr);
  gap: 28px;
  padding: 40px;
  align-items: start;
}

.info-col {
  display: grid;
  gap: 18px;
  padding-right: 40px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.info-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 18px;
  align-items: flex-start;
}

.info-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #24e1c8;
  background: rgba(255, 255, 255, 0.06);
  font-size: 1.05rem;
}

.info-text {
  display: grid;
  gap: 6px;
}

.info-label {
  color: #051e3e;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.info-value {
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.6;
}

.scope-panel {
  display: grid;
  gap: 18px;
}

.scope-heading {
  color: #24e1c8;
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.scope-list {
  margin: 0;
  padding-left: 20px;
  list-style-type: disc;
  color: #ffffff;
  line-height: 1.8;
}

.scope-list li {
  margin: 10px 0;
}

@media (max-width: 900px) {
  #project {
    padding: 60px 24px 40px;
  }

  #project h2 {
    font-size: 2.4rem;
    margin-bottom: 32px;
  }

  .project-card {
    margin: 0 auto 60px;
  }

  .project-hero img {
    width: 100%;
    height: auto;
    min-height: 220px;
  }

  .project-info {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px;
  }

  .info-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .info-label {
    white-space: normal;
    font-size: 1rem;
  }

  .info-value {
    font-size: 0.96rem;
  }
}

@media (max-width: 640px) {
  #project {
    padding: 50px 16px 30px;
  }

  #project h2 {
    font-size: 2rem;
    margin-bottom: 24px;
  }

  .project-card {
    width: 100%;
    border-radius: 16px;
  }

  .project-info {
    padding: 24px 20px;
    gap: 20px;
  }

  .info-label {
    font-size: 0.96rem;
  }

  .info-value {
    font-size: 0.95rem;
  }

  .scope-list li {
    margin: 6px 0;
  }
}

/* ================= CLIENTS ================= */

#clients {
  padding: 80px 30px;
  background: #f5f5f5;
  text-align: center;
}

#clients h2 {
  font-size: 3rem;
  color: #0a3b8c;
  font-weight: 700;
  margin-bottom: 40px;
  text-transform: uppercase;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.client-card {
  min-height: 140px;
  padding: 16px;
  border: 1px solid #ececec;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  transition: box-shadow 0.3s ease;
}

.client-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.client-card img {
  max-width: 120px;
  max-height: 70px;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
}

@media (max-width: 900px) {
  #clients {
    padding: 60px 20px;
  }

  #clients h2 {
    font-size: 2.5rem;
    margin-bottom: 28px;
  }

  .client-card {
    min-height: 120px;
    padding: 14px;
  }
}

@media (max-width: 640px) {
  #clients {
    padding: 50px 16px;
  }

  #clients h2 {
    font-size: 2rem;
    margin-bottom: 22px;
  }

  .client-grid {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }

  .client-card {
    min-height: 100px;
    padding: 12px;
  }

  .client-card img {
    max-width: 100px;
    max-height: 55px;
  }
}

@media (max-width: 420px) {
  .client-grid {
    grid-template-columns: 1fr;
  }
}

/* ================= CHANNEL PARTNERS ================= */
#channel-partners {
  padding: 80px 30px;
  background: #f5f5f5;
  text-align: center;
}

#channel-partners h2 {
  font-size: 3rem;
  color: #0a3b8c;
  font-weight: 700;
  margin-bottom: 40px;
  text-transform: uppercase;
}