/* ==========================================================================
   Orvane Solutions — shared styles
   Palette: deep navy (engineering/trust) + teal accent (AI/precision)
   ========================================================================== */

:root {
  --navy-900: #0b1220;
  --navy-800: #111827;
  --navy-700: #1e293b;
  --slate-600: #475569;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --white: #ffffff;
  --accent: #14b8a6;
  --accent-dark: #0d9488;
  --accent-light: #ccfbf1;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-width: 1140px;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.06), 0 1px 3px rgba(11, 18, 32, 0.1);
  --shadow-md: 0 4px 12px rgba(11, 18, 32, 0.08), 0 2px 4px rgba(11, 18, 32, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--navy-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--navy-900);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 4vw + 1rem, 3.4rem); }
h2 { font-size: clamp(1.7rem, 2vw + 1rem, 2.4rem); }
h3 { font-size: 1.25rem; }

p { color: var(--slate-600); }

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

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 12px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy-900);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  border-color: var(--slate-200);
  color: var(--navy-800);
}

.btn-secondary:hover {
  border-color: var(--navy-800);
}

.btn-lg {
  padding: 16px 34px;
  font-size: 1.05rem;
}

.btn-full { width: 100%; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--slate-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}

.logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.01em;
}

.logo span {
  color: var(--accent-dark);
}

.site-nav ul {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--slate-600);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--navy-900);
  border-bottom-color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-cta {
  display: inline-flex;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
}

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

.hero {
  padding: 80px 0 70px;
  background:
    radial-gradient(circle at 85% 20%, rgba(20, 184, 166, 0.12), transparent 45%),
    var(--white);
}

.hero-inner {
  max-width: 780px;
}

.hero p.lede {
  font-size: 1.15rem;
  margin: 20px 0 32px;
  max-width: 620px;
}

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

/* ---------- Credibility strip ---------- */

.credibility-strip {
  background: var(--navy-900);
  padding: 34px 0;
}

.credibility-strip ul {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.credibility-strip li {
  color: var(--slate-200);
  font-size: 0.92rem;
  font-weight: 600;
  text-align: center;
  border-left: 2px solid var(--accent);
  padding-left: 14px;
  text-align: left;
}

/* ---------- Generic section ---------- */

.section {
  padding: 88px 0;
}

.section-tight {
  padding: 60px 0;
}

.section-alt {
  background: var(--slate-100);
}

.section-header {
  max-width: 640px;
  margin-bottom: 48px;
}

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

/* ---------- Card grids ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-light);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card h3 {
  margin-bottom: 10px;
}

/* ---------- Steps (How it works) ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--accent);
  font-weight: 800;
  margin-bottom: 18px;
}

.step h3 {
  margin-bottom: 8px;
}

/* ---------- CTA banner ---------- */

.cta-banner {
  background: var(--navy-900);
  padding: 64px 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--white);
}

.cta-banner p {
  color: var(--slate-400);
  max-width: 520px;
  margin: 14px auto 30px;
}

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

.site-footer {
  background: var(--navy-900);
  color: var(--slate-400);
  border-top: 1px solid var(--navy-700);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding: 48px 0 28px;
  flex-wrap: wrap;
}

.footer-brand .logo {
  color: var(--white);
}

.footer-brand p {
  color: var(--slate-400);
  margin-top: 10px;
  max-width: 280px;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--navy-700);
  padding: 20px 0;
  font-size: 0.85rem;
}

/* ---------- Page header (About / Services / Contact) ---------- */

.page-header {
  padding: 64px 0 48px;
  background: var(--slate-100);
}

.page-header p.lede {
  max-width: 600px;
  margin-top: 16px;
  font-size: 1.08rem;
}

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

.founder-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.founder-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 3rem;
  font-weight: 800;
  overflow: hidden;
}

.founder-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.values-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.values-list li {
  border-left: 3px solid var(--accent);
  padding-left: 16px;
}

.values-list h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.values-list p {
  font-size: 0.95rem;
}

/* ---------- Services page ---------- */

.tier-featured {
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius);
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  margin-bottom: 28px;
}

.tier-featured h2,
.tier-featured p {
  color: var(--white);
}

.tier-featured p {
  color: var(--slate-400);
  margin-top: 10px;
  max-width: 480px;
}

.tier-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--navy-900);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tier-card {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 32px;
}

.tier-card h3 {
  margin-bottom: 8px;
}

.tier-card ul {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tier-card ul li {
  font-size: 0.94rem;
  color: var(--slate-600);
  padding-left: 20px;
  position: relative;
}

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

.faq-item {
  border-bottom: 1px solid var(--slate-200);
  padding: 22px 0;
}

.faq-item h3 {
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 0.95rem;
}

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

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info h2 {
  margin-bottom: 16px;
}

.contact-info ul {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-info li {
  font-size: 0.95rem;
  color: var(--slate-600);
  padding-left: 20px;
  position: relative;
}

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

.contact-email {
  display: inline-block;
  margin-top: 20px;
  font-weight: 700;
  color: var(--accent-dark);
}

form {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-800);
}

input,
select,
textarea {
  font-family: var(--font-base);
  font-size: 0.96rem;
  padding: 12px 14px;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy-800);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--slate-400);
  margin-top: 14px;
}

.form-success {
  display: none;
  background: var(--accent-light);
  color: var(--navy-900);
  border-radius: 8px;
  padding: 16px 18px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.form-success.visible {
  display: block;
}

/* ---------- Work Samples page ---------- */

.disclosure-note {
  background: var(--slate-100);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 24px;
  font-size: 0.92rem;
  color: var(--slate-600);
}

.disclosure-note strong {
  color: var(--navy-900);
}

.card-highlight {
  background: var(--accent-light);
  border-color: var(--accent);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.tag {
  display: inline-block;
  background: var(--slate-100);
  color: var(--navy-800);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
}

.sample-image {
  max-width: 880px;
  margin: 0 auto 32px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.sample-image img {
  width: 100%;
  display: block;
}

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

@media (max-width: 900px) {
  .credibility-strip ul {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .founder-block {
    grid-template-columns: 1fr;
  }

  .founder-photo {
    max-width: 220px;
  }

  .tier-featured {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .tier-grid {
    grid-template-columns: 1fr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .site-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease;
  }

  .site-nav.open {
    max-height: 300px;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
  }

  .site-nav li {
    border-bottom: 1px solid var(--slate-100);
  }

  .nav-link {
    display: block;
    padding: 14px 0;
    border-bottom: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .values-list {
    grid-template-columns: 1fr;
  }

  .form-row-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 56px 0 48px;
  }

  .section {
    padding: 60px 0;
  }

  .credibility-strip ul {
    grid-template-columns: 1fr;
  }
}