/* ═══════════════════════════════════════
   Greymark — Main Stylesheet
   ═══════════════════════════════════════ */

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

:root {
  --bg:          #080c14;
  --surface:     #0f1623;
  --surface2:    #161e2e;
  --border:      rgba(255, 255, 255, 0.07);
  --accent:      #4f8ef7;
  --accent-dim:  rgba(79, 142, 247, 0.15);
  --accent-glow: rgba(79, 142, 247, 0.2);
  --text:        #e8edf5;
  --muted:       #8b96aa;
  --radius:      12px;
  --ease:        0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Typography === */
h1, h2, h3 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { color: var(--muted); }
a  { color: inherit; text-decoration: none; }

.accent {
  background: linear-gradient(130deg, #4f8ef7 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 12px;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--ease);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(79, 142, 247, 0.3);
}
.btn-primary:hover {
  background: #6ba3ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 32px rgba(79, 142, 247, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.btn-full { width: 100%; }

/* ═══════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: padding var(--ease), background var(--ease), border var(--ease);
}

.nav.scrolled {
  background: rgba(8, 12, 20, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  transition: opacity var(--ease);
}
.logo:hover { opacity: 0.8; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--ease);
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background var(--ease), transform var(--ease) !important;
}
.nav-cta:hover {
  background: #6ba3ff !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--ease);
}

/* ═══════════════════════════════════════
   HERO
   ═══════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

/* Dot grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 50% -10%, rgba(79,142,247,0.13) 0%, transparent 65%),
    radial-gradient(ellipse 35% 40% at 85% 65%,  rgba(79,142,247,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  max-width: 700px;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 28px;
  background: rgba(255,255,255,0.025);
}
.hero-badge::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hero-title { margin-bottom: 20px; }

.hero-sub {
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 40px;
  color: var(--muted);
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════
   SECTIONS
   ═══════════════════════════════════════ */
.section { padding: 100px 0; }
.section-dark { background: var(--surface); }

.section-header {
  text-align: center;
  max-width: 540px;
  margin: 0 auto 64px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { font-size: 1rem; }

/* ═══════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.service-card:hover {
  border-color: rgba(79,142,247,0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(79,142,247,0.08);
}

.service-card--wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
  align-items: start;
}

.service-card--wide h3,
.service-card--wide > p {
  grid-column: 1 / -1;
}

.service-card--wide .service-icon {
  grid-column: 1 / -1;
}

.service-icon {
  font-size: 1.75rem;
  margin-bottom: 18px;
  display: block;
}

.service-card h3 { margin-bottom: 10px; }
.service-card > p { font-size: 0.875rem; margin-bottom: 18px; line-height: 1.65; }

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.service-list li {
  font-size: 0.83rem;
  color: var(--muted);
  padding-left: 18px;
  position: relative;
}
.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

/* ═══════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-content h2 { margin-bottom: 16px; }
.about-content p  { font-size: 0.95rem; margin-bottom: 14px; }

.stats-row {
  display: flex;
  gap: 36px;
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
  display: block;
}

.expertise-block { padding-top: 38px; }
.expertise-block .label { display: block; margin-bottom: 16px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  padding: 6px 13px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--muted);
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}
.tag:hover {
  border-color: rgba(79,142,247,0.4);
  color: var(--text);
  background: var(--accent-dim);
}

/* ═══════════════════════════════════════
   PROCESS
   ═══════════════════════════════════════ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

/* Connecting line */
.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
  z-index: 0;
}

.process-step {
  position: relative;
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--ease);
  z-index: 1;
}
.process-step:hover { border-color: rgba(79,142,247,0.3); }

.step-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.process-step h3 { margin-bottom: 8px; font-size: 1rem; }
.process-step p  { font-size: 0.85rem; }

/* ═══════════════════════════════════════
   PRICING
   ═══════════════════════════════════════ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: center;
}

.pricing-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
  transition: border-color var(--ease), transform var(--ease);
}
.pricing-card:hover { border-color: rgba(79,142,247,0.25); }

.pricing-featured {
  border-color: rgba(79,142,247,0.4);
  background: linear-gradient(145deg, rgba(79,142,247,0.07), rgba(79,142,247,0.02) 60%, var(--surface2));
  transform: scale(1.03);
  box-shadow: 0 0 60px rgba(79,142,247,0.1), 0 0 0 1px rgba(79,142,247,0.2);
}
.pricing-featured:hover { transform: scale(1.04); }

.featured-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.pricing-card h3 { margin-bottom: 8px; font-size: 1rem; }
.pricing-card > p { font-size: 0.85rem; margin-bottom: 20px; }

.price {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.03em;
}
.price span { font-size: 0.95rem; font-weight: 400; color: var(--muted); }

.price-list {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.price-list li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 18px;
  position: relative;
}
.price-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

/* ═══════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 72px;
  align-items: start;
}

.contact-content h2 { margin-bottom: 14px; }
.contact-content > p { margin-bottom: 28px; font-size: 0.95rem; }

.contact-details { display: flex; flex-direction: column; gap: 14px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}
.contact-icon { font-size: 0.95rem; flex-shrink: 0; }
.contact-item a { color: var(--accent); transition: opacity var(--ease); }
.contact-item a:hover { opacity: 0.8; text-decoration: underline; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
  resize: vertical;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: #4a5568; }

.form-group select option { background: var(--surface); color: var(--text); }

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-tagline,
.footer-copy {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ═══════════════════════════════════════
   REVEAL ANIMATION
   ═══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* stagger siblings */
.services-grid   .reveal:nth-child(2) { transition-delay: 0.1s; }
.services-grid   .reveal:nth-child(3) { transition-delay: 0.2s; }
.services-grid   .reveal:nth-child(4) { transition-delay: 0.3s; }
.process-grid    .reveal:nth-child(2) { transition-delay: 0.1s; }
.process-grid    .reveal:nth-child(3) { transition-delay: 0.2s; }
.process-grid    .reveal:nth-child(4) { transition-delay: 0.3s; }
.pricing-grid    .reveal:nth-child(2) { transition-delay: 0.1s; }
.pricing-grid    .reveal:nth-child(3) { transition-delay: 0.2s; }

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */
@media (max-width: 960px) {
  .services-grid  { grid-template-columns: 1fr; }
  .service-card--wide { grid-column: span 1; grid-template-columns: 1fr; }
  .about-grid     { grid-template-columns: 1fr; gap: 40px; }
  .process-grid   { grid-template-columns: repeat(2, 1fr); }
  .process-grid::before { display: none; }
  .pricing-grid   { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
  .pricing-featured { transform: none; }
  .pricing-featured:hover { transform: none; }
  .contact-grid   { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  /* Mobile nav dropdown */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(8,12,20,0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 16px 24px 28px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
  }
  .nav-links.open .nav-cta {
    text-align: center;
  }

  .hero-ctas { flex-direction: column; align-items: flex-start; }

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

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

  .stats-row { gap: 24px; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 6px; }

  .pricing-grid { max-width: 100%; }
}