/* Delsi Solutions — site styles */

:root {
  --navy: #1a3a52;
  --navy-dark: #12293b;
  --navy-light: #2c5578;
  --accent: #3d7ab5;
  --ink: #1f2937;
  --muted: #5b6b7a;
  --line: #e4e9ee;
  --paper: #ffffff;
  --paper-alt: #f6f8fa;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(18, 41, 59, 0.08);
  --maxw: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

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

section { padding: 88px 0; }

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

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 12px;
}

h1, h2, h3 { font-weight: 700; color: var(--navy-dark); margin: 0; }

h2 { font-size: 32px; letter-spacing: -0.01em; }

.section-head { max-width: 640px; margin: 0 0 48px; }

.section-head p { color: var(--muted); font-size: 17px; margin: 14px 0 0; }

.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand img { height: 34px; width: auto; }

.navlinks { display: flex; align-items: center; gap: 34px; }

.navlinks a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--navy);
  opacity: 0.85;
  transition: opacity 0.15s ease;
}

.navlinks a:hover { opacity: 1; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-light); }

.btn-ghost { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-ghost:hover { background: var(--navy); color: #fff; }

.nav .btn { padding: 10px 20px; }

/* Hero */
.hero {
  padding: 96px 0 88px;
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(61, 122, 181, 0.14), transparent 60%),
    linear-gradient(180deg, #ffffff, #f6f8fa);
  border-bottom: 1px solid var(--line);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: 46px;
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.hero .lede {
  font-size: 18px;
  color: var(--muted);
  margin: 20px 0 32px;
  max-width: 46ch;
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-art {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 100%);
  border-radius: 16px;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  min-height: 280px;
}

.hero-art img { max-width: 240px; filter: brightness(0) invert(1); }

/* Value props */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.value-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(61, 122, 181, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.value-card h3 { font-size: 17px; }

.value-card p { color: var(--muted); font-size: 14.5px; margin: 8px 0 0; }

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

.service-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.service-top {
  background: linear-gradient(160deg, var(--navy-light), var(--navy));
  color: #fff;
  padding: 26px 24px;
}

.service-top .num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.service-top h3 { color: #fff; font-size: 19px; margin-top: 6px; }

.service-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }

.service-body p { color: var(--muted); font-size: 14.5px; flex: 1; }

.service-body ul { margin: 14px 0 22px; padding-left: 0; list-style: none; }

.service-body li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 22px;
  position: relative;
  margin-bottom: 8px;
}

.service-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.service-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link:hover { color: var(--accent); }

/* Industries */
.grid-6 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.industry-card {
  text-align: center;
  padding: 26px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.industry-card .value-icon { margin: 0 auto 14px; }

.industry-card h3 { font-size: 14.5px; }

/* Process */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process-step { position: relative; padding-top: 8px; }

.process-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 16px;
}

.process-step h3 { font-size: 16.5px; }

.process-step p { color: var(--muted); font-size: 14.5px; margin: 8px 0 0; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-grid p { color: var(--muted); font-size: 16.5px; margin: 0 0 16px; }

.about-panel {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}

.about-panel .stat-row { display: flex; gap: 28px; flex-wrap: wrap; }

.about-panel .stat { flex: 1; min-width: 130px; }

.about-panel .stat strong {
  display: block;
  font-size: 22px;
  color: var(--navy);
}

.about-panel .stat span { font-size: 13.5px; color: var(--muted); }

/* Contact */
.contact-band {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: #fff;
  border-radius: 18px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-band h2 { color: #fff; }

.contact-band p { color: rgba(255, 255, 255, 0.78); font-size: 16px; margin: 14px 0 0; max-width: 46ch; }

.contact-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 28px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-row:last-child { border-bottom: none; }

.contact-row .ico {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-row .label { font-size: 12.5px; color: rgba(255, 255, 255, 0.65); }

.contact-row .value { font-size: 15.5px; font-weight: 600; }

.contact-card .btn-primary {
  background: #fff;
  color: var(--navy);
  width: 100%;
  margin-top: 18px;
}

.contact-card .btn-primary:hover { background: #eef3f7; }

/* Footer */
footer {
  border-top: 1px solid var(--line);
  padding: 44px 0 32px;
  background: var(--paper-alt);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 28px;
}

.footer-brand { display: flex; align-items: center; gap: 10px; }

.footer-brand img { height: 28px; }

.footer-brand span { font-weight: 700; color: var(--navy-dark); font-size: 15.5px; }

.footer-tagline { color: var(--muted); font-size: 14px; margin-top: 8px; max-width: 40ch; }

.footer-links { display: flex; gap: 32px; flex-wrap: wrap; }

.footer-links a { font-size: 14px; color: var(--navy); opacity: 0.85; }

.footer-links a:hover { opacity: 1; }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
}

/* Responsive */
@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .contact-band { grid-template-columns: 1fr; padding: 36px; }
}

@media (max-width: 720px) {
  .navlinks { display: none; }
  .nav-toggle { display: block; }
  .nav.open .navlinks {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
  }
  .hero h1 { font-size: 32px; }
  section { padding: 60px 0; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-6 { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; }
}