/* ============================================
   Seattle Prototyping — Main Stylesheet
   ============================================ */

:root {
  --bg:          #070E1A;
  --bg-card:     #0D1B2E;
  --bg-section:  #091425;
  --border:      rgba(0, 201, 167, 0.15);
  --border-mid:  rgba(0, 201, 167, 0.25);
  --accent:      #00C9A7;
  --accent-dim:  #00A98A;
  --accent-glow: rgba(0, 201, 167, 0.12);
  --text:        #E2EAF4;
  --text-muted:  #7A95B0;
  --text-dim:    #4A6278;
  --white:       #FFFFFF;
  --danger:      #FF6B6B;
  --nav-h:       68px;
  --radius:      12px;
  --radius-lg:   20px;
  --transition:  0.25s ease;
  --font-body:   'Inter', system-ui, sans-serif;
  --font-display:'Space Grotesk', 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── Utilities ─────────────────────────────── */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--accent); }

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-mid);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 { margin-bottom: 16px; }

.section-header p {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p { color: var(--text-muted); }

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

section {
  padding: 100px 0;
}

/* ── Buttons ────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 0 0 rgba(0,201,167,0);
}

.btn-primary:hover {
  background: #00ddb8;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0,201,167,0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 13px 28px;
  border-radius: 8px;
  border: 1px solid var(--border-mid);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-full { width: 100%; justify-content: center; }

.btn-nav {
  background: var(--accent);
  color: #000;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 9px 20px;
  border-radius: 7px;
  transition: background var(--transition);
}

.btn-nav:hover { background: #00ddb8; }

/* ── Nav ────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

#nav.scrolled {
  background: rgba(7, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.logo strong { font-weight: 700; }

.logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links li a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 7px;
  transition: color var(--transition), background var(--transition);
}

.nav-links li a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.06);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
  background: rgba(7, 14, 26, 0.97);
}

.mobile-menu a {
  color: var(--text-muted);
  padding: 12px 0;
  font-size: 1rem;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--accent); }

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

/* ── Hero ───────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
  max-width: 1160px;
  margin: 0 auto;
  position: relative;
}

.hero-grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: -1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-mid);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-content h1 {
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.blueprint-card {
  background: #060e1c;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6), 0 0 60px rgba(0,201,167,0.06);
  width: 100%;
  max-width: 460px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.bp-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(0,201,167,0.04);
  border-bottom: 1px solid var(--border);
}

.bp-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.bp-dot.red    { background: #FF5F57; }
.bp-dot.yellow { background: #FEBC2E; }
.bp-dot.green  { background: #28C840; }

.bp-title {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-left: 6px;
}

.bp-drawing {
  width: 100%;
  background: #060e1c;
  display: block;
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── About ──────────────────────────────────── */
#about {
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-text p {
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 36px;
}

.pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.pillar-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border: 1px solid var(--border-mid);
  border-radius: 10px;
  color: var(--accent);
}

.pillar-icon svg {
  width: 18px;
  height: 18px;
}

.pillar strong {
  display: block;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.pillar p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* Capability Cards */
.capability-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 18px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.cap-card:hover {
  border-color: var(--border-mid);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.cap-card--highlight {
  border-color: var(--border-mid);
  background: linear-gradient(135deg, rgba(0,201,167,0.06), var(--bg-card));
}

.cap-icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
  margin-bottom: 10px;
}

.cap-icon svg {
  width: 100%;
  height: 100%;
}

.cap-card strong {
  display: block;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.cap-card span {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── Services ───────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--border-mid);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.service-card--large {
  grid-column: span 1;
  background: linear-gradient(135deg, rgba(0,201,167,0.07) 0%, var(--bg-card) 60%);
  border-color: var(--border-mid);
}

.service-card--fun {
  background: linear-gradient(135deg, rgba(99,102,241,0.07) 0%, var(--bg-card) 60%);
  border-color: rgba(99,102,241,0.2);
}

.service-card--fun:hover {
  border-color: rgba(99,102,241,0.4);
}

.service-icon-wrap {
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
}

.service-icon-wrap svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.92rem;
  line-height: 1.7;
  flex: 1;
}

.service-card ul {
  list-style: none;
  margin: 16px 0;
}

.service-card ul li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 5px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-card ul li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: 20px;
  transition: gap var(--transition);
}

.service-link:hover { gap: 10px; }

/* ── Projects ───────────────────────────────── */
#projects { background: var(--bg-section); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

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

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  border-color: var(--border-mid);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

.project-img {
  position: relative;
  overflow: hidden;
}

.project-img svg {
  display: block;
  width: 100%;
  transition: transform 0.4s ease;
}

.project-card:hover .project-img svg {
  transform: scale(1.04);
}

.project-category {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(7, 14, 26, 0.85);
  border: 1px solid var(--border-mid);
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}

.project-info {
  padding: 20px 22px 24px;
}

.project-info h4 {
  color: var(--white);
  margin-bottom: 8px;
}

.project-info p {
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 14px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tags span {
  font-size: 0.75rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ── Process ────────────────────────────────── */
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}

.step {
  flex: 1;
  max-width: 220px;
  text-align: center;
  padding: 0 16px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 12px;
}

.step h4 {
  font-size: 1rem;
  margin-bottom: 10px;
}

.step p {
  font-size: 0.88rem;
  line-height: 1.6;
}

.step-arrow {
  color: var(--accent);
  font-size: 1.5rem;
  opacity: 0.4;
  margin-top: 18px;
  flex-shrink: 0;
}

/* ── Contact ────────────────────────────────── */
#contact { background: var(--bg-section); border-top: 1px solid var(--border); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { margin-bottom: 36px; line-height: 1.8; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item svg {
  width: 22px;
  height: 22px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item strong {
  display: block;
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.contact-item span {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Contact mailto */
.contact-mailto {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.contact-mailto p {
  color: var(--text-muted);
  max-width: 42ch;
  line-height: 1.7;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 11px 14px;
  width: 100%;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,201,167,0.1);
}

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 12px;
  margin-bottom: 0;
}

/* ── Footer ─────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 40px;
}

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

.footer-logo { margin-bottom: 12px; }

.footer-tagline {
  font-size: 0.88rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 16px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col strong {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--text-dim);
  transition: color var(--transition);
}

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

/* ── Responsive ─────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { gap: 48px; }
}

@media (max-width: 840px) {
  section { padding: 72px 0; }

  #hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: calc(var(--nav-h) + 48px);
    padding-bottom: 60px;
  }

  .hero-visual { display: none; }
  .scroll-hint { display: none; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .capability-cards { grid-template-columns: 1fr 1fr; }

  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card--large { grid-column: span 2; }

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

  .footer-inner { flex-direction: column; gap: 40px; }
  .footer-links { gap: 40px; }
}

@media (max-width: 640px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.75rem; }

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

  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { display: none; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card--large { grid-column: span 1; }

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

  .process-steps {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .step { max-width: 100%; }
  .step-arrow { transform: rotate(90deg); }

  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }

  .capability-cards { grid-template-columns: 1fr; }
}

/* ── Scroll-in animation ─────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}