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

:root {
  --clr-bg:        #f0f4f8;
  --clr-surface:   #ffffff;
  --clr-dark:      #1a3060;   /* logo navy */
  --clr-mid:       #4a5a72;
  --clr-accent:    #2a72c3;   /* logo medium blue */
  --clr-accent-dk: #1a3060;   /* logo dark navy */
  --clr-accent-lt: #3b9ede;   /* logo bright blue */
  --clr-border:    #d0daea;
  --ff-head:       'Segoe UI', Arial, sans-serif;
  --ff-body:       'Segoe UI', Arial, sans-serif;
  --max-w:         1100px;
  --radius:        6px;
  --shadow:        0 2px 12px rgba(26,48,96,0.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-dark);
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--clr-accent);
  text-decoration: none;
}
a:hover { color: var(--clr-accent-dk); text-decoration: underline; }

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

/* ===== LAYOUT HELPERS ===== */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: 4rem;
}

.section--alt {
  background: var(--clr-surface);
}

/* ===== NAV ===== */
.site-nav {
  background: var(--clr-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.nav-logo {
  font-family: var(--ff-head);
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: 0.04em;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.2;
}
.nav-logo .logo-sub {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--clr-accent-lt);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav-logo:hover { text-decoration: none; color: #fff; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: #ccc;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-accent);
  text-decoration: none;
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: 0.3s;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  background: #0d1f4a;
  color: #fff;
  text-align: center;
  padding-block: 6rem 5rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0d1f4a 0%, #1a3060 60%, #2a72c3 100%);
  opacity: 0.96;
}

.hero-content { position: relative; }

.hero h1 {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero h1 span { color: var(--clr-accent); }

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: #a8c4e0;
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  border: none;
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--clr-accent-dk);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
  margin-left: 0.75rem;
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  text-decoration: none;
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.service-card h3 {
  font-family: var(--ff-head);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--clr-dark);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--clr-mid);
}

/* ===== SECTION HEADINGS ===== */
.section-label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--ff-head);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--clr-dark);
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--clr-mid);
  max-width: 600px;
  margin-bottom: 1rem;
}

/* ===== PORTFOLIO GRID ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: #ccc;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.portfolio-item:hover img { transform: scale(1.05); }

.portfolio-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  color: #fff;
  padding: 1.5rem 1rem 0.75rem;
  font-size: 0.9rem;
  transform: translateY(100%);
  transition: transform 0.3s;
}
.portfolio-item:hover .portfolio-caption { transform: translateY(0); }

.portfolio-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #c5d5e8, #a0b8d0);
  color: #2a4a72;
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--clr-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-family: var(--ff-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--clr-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(184,115,51,0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-card {
  background: var(--clr-surface);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  max-width: 700px;
}

/* ===== CONTACT LAYOUT ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--ff-head);
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  color: var(--clr-dark);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--clr-mid);
}

.contact-item-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* ===== WHY US / CHECKLIST ===== */
.checklist {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.checklist li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.95rem;
}

.checklist li::before {
  content: '✓';
  color: var(--clr-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, #0d1f4a, #2a72c3);
  color: #fff;
  text-align: center;
  padding-block: 3.5rem;
}

.cta-banner h2 {
  font-family: var(--ff-head);
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 0.75rem;
}

.cta-banner p {
  color: #a8c4e0;
  margin-bottom: 1.75rem;
  font-size: 1rem;
}

/* ===== FOOTER ===== */
.site-footer {
  background: #111;
  color: #888;
  text-align: center;
  font-size: 0.85rem;
  padding-block: 1.5rem;
}

.site-footer a { color: #aaa; }
.site-footer a:hover { color: var(--clr-accent); }

/* ===== PAGE HEADER (inner pages) ===== */
.page-header {
  background: linear-gradient(135deg, #0d1f4a, #2a72c3);
  color: #fff;
  padding-block: 3rem;
  text-align: center;
}

.page-header h1 {
  font-family: var(--ff-head);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

.page-header p {
  color: #a8c4e0;
  margin-top: 0.5rem;
  font-size: 1rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #111;
    padding: 0.5rem 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    display: block;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid #222;
  }
  .nav-toggle { display: flex; }
  .site-nav { position: relative; }

  .form-row { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-card { padding: 1.5rem; }
  .hero { padding-block: 4rem 3rem; }
  .btn-outline { margin-left: 0; margin-top: 0.5rem; }
}