/* ─── Design Tokens ─────────────────────────────────────────────────── */
:root {
  --primary:                 #00346f;
  --primary-container:       #004a99;
  --on-primary:              #ffffff;
  --on-primary-container:    #9bbdff;
  --secondary:               #545f72;
  --secondary-container:     #d5e0f7;
  --on-secondary-container:  #586377;
  --tertiary:                #4d2f00;
  --tertiary-container:      #6c4300;
  --tertiary-fixed:          #ffddb8;
  --tertiary-fixed-dim:      #ffb95f;
  --on-tertiary-container:   #ffab31;
  --surface:                 #f6fafe;
  --surface-bright:          #f6fafe;
  --surface-container-low:   #f0f4f8;
  --surface-container:       #eaeef2;
  --surface-container-high:  #e4e9ed;
  --surface-container-highest:#dfe3e7;
  --surface-container-lowest:#ffffff;
  --surface-dim:             #d6dade;
  --on-surface:              #171c1f;
  --on-surface-variant:      #424751;
  --outline:                 #737783;
  --outline-variant:         #c2c6d3;
  --primary-fixed:           #d7e2ff;
  --primary-fixed-dim:       #abc7ff;
  --inverse-surface:         #2c3134;
  --inverse-on-surface:      #edf1f5;

  --power-gradient: linear-gradient(135deg, #00346f 0%, #004a99 100%);
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;

  --font-display: 'Work Sans', sans-serif;
  --font-body:    'Public Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; object-fit: cover; }

/* ─── Typography Scale ──────────────────────────────────────────────── */
.display-lg  { font-family: var(--font-display); font-size: clamp(2.5rem, 5vw, 4rem);   font-weight: 900; letter-spacing: -0.02em; line-height: 1.1; }
.display-md  { font-family: var(--font-display); font-size: clamp(2rem, 3.5vw, 3rem);   font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; }
.headline-lg { font-family: var(--font-display); font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 700; line-height: 1.2; }
.headline-md { font-family: var(--font-display); font-size: 1.375rem; font-weight: 700; line-height: 1.2; }
.headline-sm { font-family: var(--font-display); font-size: 1.125rem; font-weight: 700; }
.body-lg     { font-size: 1rem;    font-weight: 400; }
.body-md     { font-size: 0.9375rem; font-weight: 400; }
.label-sm    { font-family: var(--font-body); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }

/* ─── Layout Utilities ──────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-pad { padding: 6rem 0; }

/* ─── Buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
  border: none;
}
.btn:hover { opacity: 0.92; transform: translateY(-1px); }
.btn-primary {
  background: var(--power-gradient);
  color: var(--on-primary);
  box-shadow: 0 4px 16px rgba(0, 52, 111, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--on-primary);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-primary-light {
  background: var(--power-gradient);
  color: var(--on-primary);
}
.btn-ghost {
  background: transparent;
  color: var(--primary-container);
  padding: 0.5rem 0;
  font-weight: 600;
  font-size: 0.875rem;
}
.btn-ghost:hover { opacity: 0.8; transform: none; }

/* ─── Navigation ────────────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(246, 250, 254, 0.82);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
}
.nav-logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--power-gradient);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: white;
  font-size: 1.125rem;
  font-weight: 900;
  font-family: var(--font-display);
}
.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--primary);
  letter-spacing: -0.01em;
}
.nav-logo-text span {
  color: var(--on-surface-variant);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); }

.nav-cta { display: flex; align-items: center; gap: 1rem; }

/* ─── Hero Section ──────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--inverse-surface);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://lh3.googleusercontent.com/aida-public/AB6AXuBJCjlXKWIOq_hsYOwEZwhjm3Ri6ZWqMlMHuZb7z45sQqQETMlcaX0C2So6DA0kRVaO6o0CAoJkhaNwgbokZYiLIZ6277LTHSiG51abJlp3EQJ0DN0ajpuYIwsfJUkUNeEcFze-PVGywPN3O5fSy9ueFqVSvLPAGs_tadQ3GP_bTHPz94dL91jv1vfc6SsWHmOTgTyplO8WqlfOZtJl8_-eygrOYh2vlWh9fITuOFYJmuhsoQZQBfwrsys5AAe4l6tep6WZ91KYGu2B');
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,52,111,0.7) 0%, rgba(0,74,153,0.4) 60%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  padding-top: 5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,185,95,0.15);
  border: 1px solid rgba(255,185,95,0.4);
  border-radius: var(--radius-sm);
  padding: 0.375rem 0.875rem;
  margin-bottom: 2rem;
}
.hero-badge .material-icons { font-size: 1rem; color: var(--tertiary-fixed-dim); }
.hero-badge span { font-family: var(--font-body); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--tertiary-fixed-dim); }

.hero-title {
  color: #ffffff;
  max-width: 680px;
  margin-bottom: 1.5rem;
}

.hero-title em {
  font-style: normal;
  color: var(--tertiary-fixed-dim);
}

.hero-subtitle {
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin-bottom: 2.5rem;
  font-size: 1.0625rem;
  line-height: 1.7;
}

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem; }

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}
.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 900;
  color: white;
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.125rem;
}

/* ─── About Section ─────────────────────────────────────────────────── */
#about {
  background: var(--surface-container-low);
  padding: 6rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-label {
  color: var(--primary-container);
  margin-bottom: 1.25rem;
}

.about-title {
  color: var(--on-surface);
  margin-bottom: 1.5rem;
}

.about-body {
  color: var(--on-surface-variant);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-features {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
}

.about-feature-icon {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--power-gradient);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.about-feature-icon .material-icons { color: white; font-size: 1.25rem; }

.about-feature-title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 0.25rem;
}
.about-feature-text { font-size: 0.875rem; color: var(--on-surface-variant); line-height: 1.6; }

.about-image-wrap {
  position: relative;
}
.about-image-wrap img {
  border-radius: var(--radius-md);
  height: 500px;
  object-fit: cover;
}

.about-badge-float {
  position: absolute;
  bottom: -1.25rem;
  left: -1.5rem;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 16px 40px rgba(23,28,31,0.1);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.about-badge-float .num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}
.about-badge-float .desc {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  line-height: 1.4;
}
.about-badge-float .desc strong { display: block; color: var(--on-surface); font-weight: 600; }

/* ─── Services Section ──────────────────────────────────────────────── */
#services {
  background: var(--surface);
  padding: 6rem 0;
}

.section-header { text-align: left; margin-bottom: 4rem; }
.section-header .label-sm { color: var(--primary-container); margin-bottom: 1rem; }
.section-header h2 { color: var(--on-surface); margin-bottom: 1rem; }
.section-header p { color: var(--on-surface-variant); max-width: 560px; font-size: 1rem; line-height: 1.7; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(23,28,31,0.06);
  transition: transform 0.25s, box-shadow 0.25s;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(23,28,31,0.1);
}

.service-card-image { height: 220px; position: relative; overflow: hidden; }
.service-card-image img { height: 100%; transition: transform 0.4s; }
.service-card:hover .service-card-image img { transform: scale(1.04); }

.service-card-num {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  color: rgba(199,198,211,0.25);
  line-height: 1;
  letter-spacing: -0.03em;
  pointer-events: none;
}

.service-card-body { padding: 1.75rem; }

.service-card-icon {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.service-card-icon .material-icons { color: var(--primary-container); font-size: 1.5rem; }
.service-card-icon .label-sm { color: var(--primary-container); }

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 0.75rem;
}
.service-card p {
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* ─── Projects / Stats strip ────────────────────────────────────────── */
#stats {
  background: var(--power-gradient);
  padding: 4.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item { padding: 1rem; }
.stat-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: white;
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-label {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}

.stats-divider {
  width: 1px;
  background: rgba(255,255,255,0.15);
  align-self: stretch;
}

/* ─── Contact Section ───────────────────────────────────────────────── */
#contact {
  background: var(--surface-container-low);
  padding: 6rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: stretch;
}

.contact-label { color: var(--primary-container); margin-bottom: 1.25rem; }
.contact-title { color: var(--on-surface); margin-bottom: 1rem; }
.contact-subtitle { color: var(--on-surface-variant); font-size: 1rem; line-height: 1.7; margin-bottom: 2.5rem; }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }

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

.form-field { display: flex; flex-direction: column; gap: 0.375rem; }
.form-field label {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}
.form-field input,
.form-field textarea {
  background: var(--surface-container-highest);
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--on-surface);
  transition: border-color 0.2s;
  outline: none;
}
.form-field input:focus,
.form-field textarea:focus {
  border-bottom-color: var(--primary);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--outline); }
.form-field textarea { resize: vertical; min-height: 8rem; }

/* Office info */
.office-info { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2.5rem; }

.office-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
}
.office-detail .material-icons { color: var(--primary-container); font-size: 1.25rem; margin-top: 0.1rem; }
.office-detail-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 0.25rem;
}
.office-detail-value {
  font-size: 0.9375rem;
  color: var(--on-surface);
  font-weight: 500;
}

.map-placeholder {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  min-height: 220px;
  background: var(--surface-container);
  position: relative;
}
.map-placeholder img { height: 100%; object-fit: cover; }
.map-placeholder iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ─── Footer ────────────────────────────────────────────────────────── */
footer {
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .nav-logo { margin-bottom: 1.25rem; }
.footer-brand .nav-logo-text,
.footer-brand .nav-logo-text span { color: rgba(255,255,255,0.85); }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 300px; }

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 1.25rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col ul li a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: 0.875rem; color: rgba(255,255,255,0.4); }

.footer-bottom-links { display: flex; gap: 2rem; }
.footer-bottom-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-bottom-links a:hover { color: rgba(255,255,255,0.75); }

/* ─── Status chips ──────────────────────────────────────────────────── */
.chip {
  display: inline-block;
  padding: 0.2rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.chip-progress { background: var(--tertiary-fixed); color: var(--tertiary); }
.chip-scheduled { background: var(--primary-fixed); color: var(--primary); }

/* ─── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 2rem; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}