/* =============================================
   RELAY615 — Main Stylesheet
   ============================================= */

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

:root {
  --navy:       #0d1b2a;
  --navy-mid:   #152336;
  --navy-light: #1e3a5f;
  --teal:       #00c5d4;
  --teal-dark:  #009aaa;
  --blue:       #1a73e8;
  --white:      #ffffff;
  --off-white:  #f5f8fc;
  --gray-light: #eef1f6;
  --gray:       #8a9ab0;
  --text:       #1a2536;
  --text-muted: #5a6a80;
  --border:     #dde3ec;
  --shadow-sm:  0 2px 8px rgba(13,27,42,.08);
  --shadow-md:  0 6px 24px rgba(13,27,42,.12);
  --shadow-lg:  0 16px 48px rgba(13,27,42,.18);
  --radius:     8px;
  --radius-lg:  16px;
  --transition: .25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }
p  { color: var(--text-muted); line-height: 1.75; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

.section-title { margin-bottom: 16px; }
.section-desc  { max-width: 580px; margin-bottom: 48px; }

.section-header { margin-bottom: 56px; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary {
  background: var(--teal);
  color: var(--navy);
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,197,212,.35); }

.btn-outline {
  border: 2px solid rgba(255,255,255,.35);
  color: var(--white);
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.btn-dark {
  background: var(--navy);
  color: var(--white);
}
.btn-dark:hover { background: var(--navy-light); transform: translateY(-1px); }

.btn-ghost {
  color: var(--teal);
  font-weight: 600;
  padding: 0;
  gap: 6px;
}
.btn-ghost svg { transition: transform var(--transition); }
.btn-ghost:hover svg { transform: translateX(4px); }

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo img { height: 44px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 14px;
  font-size: .925rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius);
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--teal); background: rgba(0,197,212,.08); }

.nav-cta { margin-left: 12px; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* mobile nav */
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 16px 24px 24px;
  gap: 4px;
}
.nav-mobile a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius);
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}
.nav-mobile a:hover { color: var(--teal); background: rgba(0,197,212,.08); }
.nav-mobile .btn { margin-top: 12px; justify-content: center; }
.nav-mobile.open { display: flex; }

/* --- Hero --- */
.hero {
  position: relative;
  background: var(--navy);
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero/index-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: .18;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,197,212,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,197,212,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 100px 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,197,212,.12);
  border: 1px solid rgba(0,197,212,.25);
  color: var(--teal);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero h1 span { color: var(--teal); }
.hero p { color: rgba(255,255,255,.7); font-size: 1.125rem; margin-bottom: 36px; max-width: 520px; }

.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.hero-badges {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.1);
  flex-wrap: wrap;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.8);
  font-size: .875rem;
}
.hero-badge-icon {
  width: 36px;
  height: 36px;
  background: rgba(0,197,212,.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  flex-shrink: 0;
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--navy-mid);
  padding: 40px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item { padding: 8px; }
.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--teal);
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: .875rem; color: rgba(255,255,255,.6); }

/* --- Section spacing --- */
.section { padding: 96px 0; }
.section-alt { background: var(--off-white); }
.section-dark { background: var(--navy); }

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0,197,212,.12), rgba(26,115,232,.12));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--teal);
}

.service-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.service-card p  { font-size: .9rem; margin-bottom: 20px; }

/* --- About Split --- */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-image img { width: 100%; height: 480px; object-fit: cover; border-radius: var(--radius-lg); }

.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--navy);
  color: var(--white);
  padding: 16px 20px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
}
.about-badge-num { font-size: 1.75rem; font-weight: 800; color: var(--teal); }
.about-badge-text { font-size: .8rem; line-height: 1.4; }

.about-list { margin: 24px 0 32px; display: flex; flex-direction: column; gap: 12px; }
.about-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .95rem;
  color: var(--text-muted);
}
.about-list-item svg { color: var(--teal); margin-top: 3px; flex-shrink: 0; }

/* --- Tech Logos --- */
.tech-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px 48px;
}
.tech-logo {
  height: 40px;
  width: auto;
  filter: grayscale(1) opacity(.5);
  transition: var(--transition);
  object-fit: contain;
}
.tech-logo:hover { filter: grayscale(0) opacity(1); }

/* --- Why Us --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.why-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  transition: var(--transition);
}
.why-card:hover { background: rgba(0,197,212,.06); border-color: rgba(0,197,212,.2); }
.why-icon {
  width: 48px;
  height: 48px;
  background: rgba(0,197,212,.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  margin-bottom: 20px;
}
.why-card h3 { color: var(--white); margin-bottom: 10px; }
.why-card p  { color: rgba(255,255,255,.55); font-size: .9rem; }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-light), var(--navy-mid));
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0,197,212,.18), transparent 70%);
}
.cta-banner h2 { color: var(--white); margin-bottom: 12px; }
.cta-banner p  { color: rgba(255,255,255,.65); margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info p  { margin-bottom: 32px; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-detail-icon {
  width: 42px;
  height: 42px;
  background: rgba(0,197,212,.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  flex-shrink: 0;
}
.contact-detail-text strong { display: block; font-size: .875rem; color: var(--text); margin-bottom: 2px; }
.contact-detail-text span   { font-size: .9rem; color: var(--text-muted); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .925rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0,197,212,.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; padding: 14px; font-size: 1rem; justify-content: center; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: var(--navy);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,197,212,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,197,212,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero-content { position: relative; z-index: 2; }
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p  { color: rgba(255,255,255,.65); font-size: 1.05rem; max-width: 560px; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--teal); }
.breadcrumb span { color: rgba(255,255,255,.3); }

/* --- Services Page --- */
.services-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.service-detail-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
}
.service-detail-card:hover { box-shadow: var(--shadow-md); border-color: var(--teal); }
.service-detail-card h3 { margin: 16px 0 10px; }
.service-detail-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.service-detail-card li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--text-muted);
}
.service-detail-card li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

/* --- About Page --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.value-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.value-card h3 { margin: 12px 0 8px; }
.value-icon {
  width: 44px;
  height: 44px;
  background: rgba(0,197,212,.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
}

/* --- Footer --- */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.7);
}

.footer-top {
  padding: 72px 0 48px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand img { height: 40px; margin-bottom: 16px; }
.footer-brand p   { font-size: .9rem; line-height: 1.7; margin-bottom: 24px; }

.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.footer-social a:hover { background: var(--teal); color: var(--navy); }

.footer-col h4 {
  color: var(--white);
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: .9rem;
  color: rgba(255,255,255,.55);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--teal); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .85rem;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,.4); transition: var(--transition); }
.footer-bottom-links a:hover { color: var(--teal); }

/* --- 404 --- */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
}
.error-code {
  font-size: 8rem;
  font-weight: 900;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 16px;
  opacity: .25;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid    { grid-template-columns: repeat(2, 1fr); }
  .footer-top       { grid-template-columns: 1fr 1fr; }
  .stats-grid       { grid-template-columns: repeat(2, 1fr); }
  .about-split      { grid-template-columns: 1fr; gap: 40px; }
  .why-grid         { grid-template-columns: repeat(2, 1fr); }
  .services-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  .services-grid    { grid-template-columns: 1fr; }
  .contact-grid     { grid-template-columns: 1fr; gap: 40px; }
  .why-grid         { grid-template-columns: 1fr; }
  .value-grid       { grid-template-columns: 1fr; }
  .footer-top       { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom    { flex-direction: column; gap: 12px; text-align: center; }
  .cta-banner       { padding: 40px 24px; }
  .form-row         { grid-template-columns: 1fr; }
  .hero-badges      { gap: 16px; }
  .section          { padding: 64px 0; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .hero-content { padding: 72px 0; }
}