/* ============ Darius AI Solutions — Site Styles ============ */

:root {
  --navy-950: #060b18;
  --navy-900: #0a1128;
  --navy-800: #0f1a38;
  --navy-700: #16224a;
  --navy-600: #22305e;
  --text-light: #e8ecf7;
  --text-muted: #9aa5c4;
  --accent: #4d9fff;
  --accent-2: #7c5cff;
  --accent-gradient: linear-gradient(135deg, #4d9fff 0%, #7c5cff 100%);
  --white: #ffffff;
  --radius: 14px;
  --max-width: 1160px;
  --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.35);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  background: var(--navy-900);
  color: var(--text-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* ---------- Header / Nav ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 17, 40, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand .mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: var(--white);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-light);
}

.nav-cta {
  background: var(--accent-gradient);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}

.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(--text-light);
  display: block;
}

/* ---------- Hero ---------- */
.hero {
  padding: 110px 24px 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(77, 159, 255, 0.18) 0%, rgba(124, 92, 255, 0.08) 45%, transparent 75%);
  pointer-events: none;
}

.eyebrow {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(77, 159, 255, 0.12);
  border: 1px solid rgba(77, 159, 255, 0.3);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 800px;
  margin: 0 auto 20px;
}

.hero h1 span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

.btn-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(77, 159, 255, 0.35);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(77, 159, 255, 0.45); }

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-secondary:hover { border-color: rgba(255, 255, 255, 0.4); transform: translateY(-2px); }

/* ---------- Sections ---------- */
section { padding: 90px 24px; }

.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}

.section-head .eyebrow { margin-bottom: 16px; }

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ---------- Cards / Grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(77, 159, 255, 0.35);
}

.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card ul {
  margin-top: 14px;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.card ul li { margin-bottom: 6px; }

/* ---------- Alt background band ---------- */
.band {
  background: var(--navy-950);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.stats .stat h3 {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 6px;
}

.stats .stat p { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- CTA band ---------- */
.cta-band {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--accent-gradient);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
}

.cta-band h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 14px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 30px;
  font-size: 1.05rem;
}

.cta-band .btn-primary {
  background: var(--white);
  color: var(--navy-900);
  box-shadow: none;
}

.cta-band .btn-secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
}

/* ---------- Process steps ---------- */
.steps {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

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

.step .num {
  font-size: 2.4rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(77, 159, 255, 0.5);
  margin-bottom: 14px;
}

.step h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--text-muted); font-size: 0.92rem; }

/* ---------- About page specifics ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  max-width: var(--max-width);
  margin: 0 auto;
  align-items: center;
}

.two-col h2 { font-size: clamp(1.7rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 18px; }
.two-col p { color: var(--text-muted); margin-bottom: 16px; }

.value-list { list-style: none; margin-top: 20px; }
.value-list li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  gap: 12px;
}
.value-list li:last-child { border-bottom: none; }
.value-list .check {
  color: var(--accent);
  font-weight: 800;
}

.portrait-card {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
}

.portrait-card .avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--accent-gradient);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact-info .item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info .item .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info .item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.contact-info .item p, .contact-info .item a { color: var(--text-muted); font-size: 0.95rem; }

form {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 32px;
}

.form-row { margin-bottom: 18px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-muted);
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--navy-900);
  color: var(--text-light);
  font-family: inherit;
  font-size: 0.95rem;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

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

form .btn-primary { width: 100%; justify-content: center; border: none; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 50px 24px 30px;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-grid .brand { margin-bottom: 14px; }
.footer-grid p { color: var(--text-muted); font-size: 0.92rem; max-width: 320px; }

.footer-grid h5 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-grid ul { list-style: none; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul a { color: var(--text-muted); font-size: 0.92rem; }
.footer-grid ul a:hover { color: var(--text-light); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Proof band ---------- */
.proof {
  background: var(--navy-950);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 44px 24px;
}

.proof-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.proof-grid .num {
  font-size: 2.1rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}

.proof-grid p { color: var(--text-muted); font-size: 0.88rem; }

/* ---------- Capability cards (What We Can Do) ---------- */
.cap-card {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 30px 28px;
  margin-bottom: 22px;
}

.cap-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.cap-head h3 {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  font-weight: 700;
}

.pill {
  background: rgba(77, 159, 255, 0.14);
  border: 1px solid rgba(77, 159, 255, 0.3);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}

.cap-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 6px;
}

.cap-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 18px; }

.cap-cta {
  display: block;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 12px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.92rem;
}

.cap-cta:hover { border-color: var(--accent); }

/* ---------- Portfolio (Our Work) ---------- */
.work-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.work-card {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-top: 3px solid var(--accent-2);
  border-radius: var(--radius);
  padding: 28px;
}

.work-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.work-card h3 { font-size: 1.2rem; font-weight: 700; }
.work-card .loc { color: var(--text-muted); font-size: 0.88rem; }

.tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.tag {
  background: rgba(124, 92, 255, 0.14);
  border: 1px solid rgba(124, 92, 255, 0.28);
  color: #b9a6ff;
  font-size: 0.74rem;
  padding: 4px 10px;
  border-radius: 6px;
}

.work-card p { color: var(--text-muted); font-size: 0.94rem; margin-bottom: 16px; }

.visit {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.92rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
  display: inline-block;
}

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 820px; margin: 0 auto; }

.faq-item {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-item summary {
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 400;
  flex-shrink: 0;
}

.faq-item[open] summary::after { content: "−"; }

.faq-item .answer {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .proof-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .grid, .grid.cols-2, .grid.cols-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row.two { grid-template-columns: 1fr; }
  .hero { padding: 90px 20px 60px; }
  section { padding: 60px 20px; }
}