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

:root {
  --navy: #0a1628;
  --navy-light: #132244;
  --blue: #1a5276;
  --blue-accent: #2980b9;
  --silver: #bdc3c7;
  --silver-light: #ecf0f1;
  --white: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--blue-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--navy);
  padding: 0 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

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

.nav-logo {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-decoration: none;
}

.nav-logo:hover {
  text-decoration: none;
  color: var(--silver-light);
}

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

.nav-links a {
  color: var(--silver);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--white);
  text-decoration: none;
}

.nav-btn {
  background: var(--blue-accent);
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: 4px;
  font-weight: 600;
  transition: background 0.2s;
}

.nav-btn:hover {
  background: #2471a3;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

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

/* ===== Hero ===== */
.hero {
  position: relative;
  background: url('images/hero-banner.png') center center / cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: 160px 24px 100px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 40, 0.65);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--silver);
  margin-bottom: 32px;
}

/* ===== Button ===== */
.btn {
  display: inline-block;
  background: var(--blue-accent);
  color: var(--white);
  padding: 14px 36px;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  text-decoration: none;
  letter-spacing: 0.5px;
}

.btn:hover {
  background: #2471a3;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* ===== Sections ===== */
.section {
  padding: 80px 24px;
}

.section h2 {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  color: var(--navy);
}

/* ===== About ===== */
.about {
  background: var(--white);
}

.about p {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text);
}

/* ===== How We Work ===== */
.how-we-work {
  background: var(--silver-light);
}

.how-intro {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 36px;
}

.process-steps {
  max-width: 780px;
  margin: 0 auto;
  list-style: none;
  counter-reset: step;
}

.process-steps > li {
  counter-increment: step;
  position: relative;
  padding: 20px 24px 20px 72px;
  margin-bottom: 16px;
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
}

.process-steps > li::before {
  content: counter(step);
  position: absolute;
  left: 20px;
  top: 20px;
  width: 36px;
  height: 36px;
  background: var(--blue-accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.deliverables-list {
  margin-top: 12px;
  padding-left: 20px;
  list-style: disc;
}

.deliverables-list li {
  margin-bottom: 4px;
  color: var(--text);
}

/* ===== Services ===== */
.services {
  background: var(--silver-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.service-card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

img.service-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.service-card h3 {
  padding: 24px 24px 12px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
}

.service-card p {
  padding: 0 24px 24px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-light);
}

/* ===== FAQ ===== */
.faq {
  background: var(--white);
}

.faq-list {
  max-width: 780px;
  margin: 36px auto 0;
}

.faq-item {
  border-bottom: 1px solid #e0e0e0;
}

.faq-item summary {
  padding: 20px 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--blue-accent);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '\2212';
}

.faq-item summary:hover {
  color: var(--blue-accent);
}

.faq-item p {
  padding: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-light);
}

/* ===== File Transfer ===== */
.file-transfer {
  background: var(--silver-light);
}

.file-transfer-box {
  text-align: center;
}

.file-transfer-box p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 24px;
}

/* ===== Contact Info ===== */
.contact-info {
  background: var(--white);
  text-align: center;
}

.contact-subtitle {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  color: var(--text);
}

.contact-item svg {
  color: var(--blue-accent);
  flex-shrink: 0;
}

.contact-item a {
  color: var(--text);
}

.contact-item a:hover {
  color: var(--blue-accent);
}

/* ===== Contact Form ===== */
.contact-form-section {
  background: var(--silver-light);
}

.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid #d5d8dc;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-light);
}

.contact-form .btn {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--navy);
  color: var(--silver);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

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

  .hero {
    padding: 130px 24px 80px;
  }

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

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

  .contact-details {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .section {
    padding: 60px 24px;
  }
}