/* ==========================================================================
   American Society of Engineers LLC — styles.css
   ========================================================================== */

:root {
  --navy-900: #0d1b2a;
  --navy-800: #13273f;
  --navy-700: #1b3a5b;
  --gold: #c9a35c;
  --gold-soft: #e2c389;
  --gold-light: #e6cf9b;
  --sand: #f4efe6;
  --ink: #1c2530;
  --ink-soft: #4c5a68;
  --line: #e3e0d8;
  --white: #ffffff;
  --radius: 14px;
  --container: 1140px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; }

h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.01em; }

a { color: inherit; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--navy-900);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(13, 27, 42, 0.25);
}
.btn-primary:hover { background: var(--navy-700); }

.btn-ghost {
  background: transparent;
  color: var(--navy-900);
  border: 1.5px solid rgba(13, 27, 42, 0.3);
}
.btn-ghost:hover { border-color: var(--navy-900); }

.btn-gold {
  background: var(--gold);
  color: var(--navy-900);
  box-shadow: 0 8px 24px rgba(201, 163, 92, 0.3);
}
.btn-gold:hover { background: var(--gold-light); }

.btn-block { width: 100%; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-right: auto;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; color: var(--navy-900); }
.brand-text small { font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--navy-900); }

.nav-cta {
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--navy-900);
  color: var(--white) !important;
  font-weight: 600;
}
.nav-cta:hover { background: var(--navy-700); }

.header-phone {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy-900);
  text-decoration: none;
  white-space: nowrap;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #b9bfc7;
  font-size: 0.85rem;
}
.lang-switch button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  padding: 4px 5px;
  border-radius: 6px;
  transition: color 0.15s ease, background 0.15s ease;
}
.lang-switch button:hover { color: var(--navy-900); }
.lang-switch button.active {
  color: var(--navy-900);
  background: rgba(201, 163, 92, 0.22);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: linear-gradient(165deg, var(--sand) 0%, #fbf9f4 60%, var(--white) 100%);
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(13, 27, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 27, 42, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, black 30%, transparent 75%);
}

.hero-inner {
  position: relative;
  padding-top: 96px;
  padding-bottom: 88px;
  max-width: 860px;
}

.hero-kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy-700);
  background: rgba(201, 163, 92, 0.18);
  border: 1px solid rgba(201, 163, 92, 0.45);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 26px;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.9rem);
  color: var(--navy-900);
  margin-bottom: 22px;
}
.hero h1 em { font-style: italic; color: var(--gold); }

.hero-sub {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 58px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  border-top: 1px solid rgba(13, 27, 42, 0.12);
  padding-top: 30px;
  max-width: 760px;
}
.hero-stats dt {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 4px;
}
.hero-stats dd { font-size: 0.9rem; color: var(--ink-soft); }

/* ---------- Sections ---------- */

.section { padding: 96px 0; }

.section-head { max-width: 680px; margin-bottom: 56px; }

.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.eyebrow-light { color: var(--gold-light); }

.section-head h2 { color: var(--navy-900); margin-bottom: 16px; }

.section-lead { color: var(--ink-soft); font-size: 1.05rem; }

.section-dark { background: var(--navy-900); color: #d8dee6; }
.section-dark h2 { color: var(--white); }

.section-sand { background: var(--sand); }

/* ---------- Service cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 44px rgba(13, 27, 42, 0.1);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(201, 163, 92, 0.14);
  color: var(--navy-800);
  display: grid;
  place-items: center;
  padding: 12px;
  margin-bottom: 22px;
}

.card h3 { font-size: 1.3rem; color: var(--navy-900); margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 0.96rem; margin-bottom: 18px; }

.card ul { list-style: none; }
.card ul li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: var(--ink);
  margin-bottom: 8px;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

/* ---------- Specialties ---------- */

.specialty {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  padding: 44px 0;
}
.specialty + .specialty { border-top: 1px solid rgba(255, 255, 255, 0.1); }

.specialty-reverse .specialty-text { order: 2; }
.specialty-reverse .specialty-visual { order: 1; }

.specialty-num {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--gold);
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 10px;
}

.specialty h3 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  color: var(--white);
  margin-bottom: 16px;
}

.specialty p { color: #b9c4d0; margin-bottom: 22px; }

.check-list { list-style: none; margin-bottom: 30px; }
.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 10px;
  color: #d8dee6;
  font-size: 0.97rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 14px;
  height: 8px;
  border-left: 2.5px solid var(--gold);
  border-bottom: 2.5px solid var(--gold);
  transform: rotate(-45deg);
}

.specialty-visual {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 30px;
}

.blueprint { width: 100%; height: auto; }
.blueprint rect, .blueprint line, .blueprint path, .blueprint circle {
  fill: none;
  stroke: rgba(201, 163, 92, 0.75);
  stroke-width: 1.6;
}
.blueprint .dim { stroke: rgba(255, 255, 255, 0.3); stroke-dasharray: 5 5; }
.blueprint .star { stroke: var(--gold-light); fill: rgba(201, 163, 92, 0.18); }

/* ---------- Projects ---------- */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.project {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy-900);
  aspect-ratio: 4 / 3;
}

.project img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.project:hover img { transform: scale(1.05); opacity: 0.85; }

.project figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 44px 20px 18px;
  background: linear-gradient(to top, rgba(13, 27, 42, 0.88) 0%, rgba(13, 27, 42, 0.45) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.project-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-light);
}

.project figcaption strong {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 500;
  color: var(--white);
}

.projects-note {
  margin-top: 22px;
  font-size: 0.82rem;
  color: var(--ink-soft);
  text-align: center;
}

/* ---------- Process ---------- */

.process-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  counter-reset: step;
}

.process-steps li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--gold-light);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.process-steps h3 { font-size: 1.12rem; color: var(--navy-900); margin-bottom: 10px; }
.process-steps p { font-size: 0.91rem; color: var(--ink-soft); }

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.about-grid h2 { color: var(--navy-900); position: sticky; top: 110px; }

.about-text p { color: var(--ink-soft); font-size: 1.03rem; margin-bottom: 20px; }

.about-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 34px;
}
.about-points > div {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 18px;
}
.about-points strong { display: block; color: var(--navy-900); font-size: 0.97rem; margin-bottom: 5px; }
.about-points span { font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-lead { color: #b9c4d0; margin: 16px 0 36px; max-width: 420px; }

.contact-channels { display: flex; flex-direction: column; gap: 16px; }

.channel {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px 20px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
a.channel:hover { background: rgba(255, 255, 255, 0.09); border-color: rgba(201, 163, 92, 0.5); }

.channel-icon {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 10px;
  background: rgba(201, 163, 92, 0.16);
  color: var(--gold-light);
  display: grid;
  place-items: center;
  padding: 10px;
}

.channel small {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8b99a8;
}
.channel strong { color: var(--white); font-size: 1.02rem; }

/* ---------- Form ---------- */

.contact-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
}

.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: #f7f6f2;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--gold);
  background: var(--white);
}

.contact-form textarea { resize: vertical; }

.contact-form .btn { margin-top: 8px; }

.form-note {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-align: center;
}
.form-note.success { color: #2e7d4f; font-weight: 600; }
.form-note.error { color: #b3402a; font-weight: 600; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-900);
  color: #b9c4d0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr;
  gap: 40px;
  padding-top: 56px;
  padding-bottom: 40px;
}

.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand strong { color: var(--white); font-family: var(--font-display); font-size: 1.05rem; }
.footer-brand p { font-size: 0.85rem; margin-top: 6px; }

.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-contact a {
  text-decoration: none;
  font-size: 0.92rem;
  color: #b9c4d0;
  transition: color 0.15s ease;
}
.footer-links a:hover, .footer-contact a:hover { color: var(--gold-light); }

.footer-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  padding-bottom: 26px;
}
.footer-legal p { font-size: 0.82rem; color: #8b99a8; }

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  .cards { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .specialty { grid-template-columns: 1fr; gap: 36px; }
  .specialty-reverse .specialty-text { order: 1; }
  .specialty-reverse .specialty-visual { order: 2; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-grid h2 { position: static; }
  .about-points { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .header-phone { display: none; }
}

@media (max-width: 760px) {
  .section { padding: 68px 0; }
  .hero-inner { padding-top: 64px; padding-bottom: 60px; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }
  .projects-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }

  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(13, 27, 42, 0.12);
    padding: 10px 0;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 14px 24px; font-size: 1rem; }
  .nav-cta { margin: 10px 24px 8px; text-align: center; }

  .brand-text small { display: none; }
}