/* ===== CSS Custom Properties ===== */
:root {
  --bg: #0A0F1E;
  --surface: #111827;
  --accent: #3B82F6;
  --accent-dark: #2563EB;
  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  --border: #1F2D45;
  --success: #10B981;
  --amber: #F59E0B;
  --error: #EF4444;

  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== Typography ===== */
h1 { font-size: clamp(2.2rem, 5vw + 1rem, 4rem); font-weight: 700; line-height: 1.1; }
h2 { font-size: clamp(1.7rem, 3vw + 0.8rem, 2.8rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem); font-weight: 600; }
p  { font-size: clamp(0.95rem, 1vw + 0.5rem, 1.05rem); }

/* ===== Layout helpers ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 2.5rem);
}

section { padding: clamp(4rem, 8vw, 7rem) 0; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 1rem auto 0;
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Navbar ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 0;
  background: #fff;
  box-shadow: 0 1px 0 #e5e7eb;
  transition: box-shadow var(--transition), padding var(--transition);
  color-scheme: light;
}

#navbar.scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
  padding: 0.6rem 0;
}

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

.nav-logo {
  display: inline-flex;
  align-items: center;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

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

.logo-img {
  height: 38px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  color: #374151;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--accent); }

.btn-nav {
  padding: 0.55rem 1.25rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
}

.btn-nav:hover { background: var(--accent-dark); transform: translateY(-1px); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #374151;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.mobile-menu a:hover { color: var(--text-primary); }

.mobile-menu .btn-cta {
  padding: 0.8rem 2rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
}

/* ===== Hero ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Dot-grid background (pure CSS) */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(59, 130, 246, 0.18) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 30%, transparent 100%);
  pointer-events: none;
}

/* Ambient glow */
#hero::after {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-title .highlight {
  color: var(--accent);
}

.hero-sub {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.5vw + 0.5rem, 1.15rem);
  max-width: 620px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.btn-primary {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.btn-outline {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Trust badges */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.03);
}

.badge-icon {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

/* ===== Services ===== */
#services { background: var(--surface); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.12);
}

/* 5th card spans full width */
.service-card:last-child {
  grid-column: 1 / -1;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.4rem;
}

.service-card h3 { margin-bottom: 0.6rem; }

.service-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== Expertise ===== */
#expertise .expertise-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.expertise-prose h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.expertise-prose p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.75;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  border: 1.5px solid var(--amber);
  border-radius: var(--radius-sm);
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-top: 0.5rem;
  background: rgba(245, 158, 11, 0.06);
}

.cert-badge svg { flex-shrink: 0; }

.expertise-tags h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  margin-top: 1.4rem;
}

.expertise-tags h4:first-child { margin-top: 0; }

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--surface);
  transition: border-color var(--transition), color var(--transition);
}

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

/* ===== Why Nollayks ===== */
#why { background: var(--surface); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color var(--transition);
}

.why-card:hover { border-color: var(--accent); }

.why-icon {
  font-size: 1.75rem;
  margin-bottom: 0.9rem;
}

.why-card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }

.why-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.75;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.contact-item a {
  color: var(--accent);
  transition: color var(--transition);
}

.contact-item a:hover { color: var(--text-primary); }

/* Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.form-group textarea { min-height: 120px; }

.btn-submit {
  width: 100%;
  padding: 0.85rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-submit:hover:not(:disabled) {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid var(--success);
  color: var(--success);
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

/* ===== Footer ===== */
footer {
  background: #fff;
  border-top: 1px solid #e5e7eb;
  padding: 3rem 0 2rem;
  color: #111827;
  color-scheme: light;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand p {
  color: #6B7280;
  font-size: 0.88rem;
  margin-top: 0.4rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #374151;
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid #e5e7eb;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: #6B7280;
  font-size: 0.82rem;
}

.linkedin-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  color: #374151;
  transition: border-color var(--transition), color var(--transition);
}

.linkedin-icon:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card:last-child { grid-column: unset; max-width: none; }

  #expertise .expertise-grid { grid-template-columns: 1fr; gap: 2rem; }

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

  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 600px) {
  .why-grid { grid-template-columns: 1fr; }

  .footer-top { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-ctas { flex-direction: column; }
  .btn-primary, .btn-outline { text-align: center; }
}