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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 70px;
}

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}

::selection { background: var(--accent); color: var(--bg-primary); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-mid); border-radius: 3px; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ============================================
   ANIMATED GRID BACKGROUND
   ============================================ */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.15;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
}

.grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-glow) 0%, transparent 60%);
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: calc(var(--safe-top) + 0px) var(--safe-left) 0 var(--safe-right);
  transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav-logo .logo-mark {
  width: 36px;
  height: 36px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  position: relative;
}

.nav-logo .logo-mark::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid var(--accent-dim);
  border-radius: 11px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-family: var(--font-mono) !important;
  font-size: 0.75rem !important;
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent) !important;
  transition: all 0.3s !important;
  text-transform: uppercase !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
}

.nav-cta::after { display: none !important; }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s;
  border-radius: 1px;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 14, 23, 0.98);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  transition: opacity 0.4s;
}

.mobile-menu.open { display: flex; opacity: 1; }

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  transition: color 0.3s;
}

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

.mobile-menu .mob-cta {
  margin-top: 16px;
  padding: 14px 36px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   SECTIONS GENERAL
   ============================================ */
section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--accent-dim), var(--border), transparent);
  margin: 0 auto;
}

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-tag::before {
  content: '▸ ';
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero-title .accent { color: var(--accent); }
.hero-title .line { display: block; }

.hero-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 540px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.btn-primary {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 32px;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
}

.btn-primary:hover { box-shadow: 0 0 30px var(--accent-mid); transform: translateY(-2px); }

.btn-secondary {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 32px;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
}

.btn-secondary:hover { background: var(--accent-dim); transform: translateY(-2px); }

/* Hero visual — architectural diagram */
.hero-visual {
  position: relative;
  opacity: 0;
  animation: fadeIn 1.2s 0.6s forwards;
}

.hero-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.hero-card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.architect-profile {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.architect-avatar {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-dim), var(--bg-tertiary));
  border: 2px solid var(--accent-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.architect-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.architect-info p {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.stat-box {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.stat-box .num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.stat-box .label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
  display: block;
}

/* Floating badge on hero card */
.hero-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================
   MANIFESTO
   ============================================ */
#manifesto { text-align: center; }

.manifesto-quote {
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin: 0 auto 40px;
}

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

.manifesto-body {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

.manifesto-line {
  font-size: clamp(0.9rem, 1.3vw, 1.05rem);
  color: var(--text-secondary);
  line-height: 1.8;
}

.manifesto-line strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   THE ARCHITECT
   ============================================ */
.architect-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.architect-text p {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}

.architect-highlight {
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent);
  padding: 24px;
  border-radius: 0 8px 8px 0;
  margin: 32px 0;
}

.architect-highlight p {
  font-style: italic;
  color: var(--text-primary) !important;
  font-size: 1.05rem !important;
  margin-bottom: 0 !important;
}

.architect-timeline {
  position: relative;
  padding-left: 32px;
}

.architect-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--border));
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent);
}

.timeline-item h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   FRAMEWORK (SPS)
   ============================================ */
.sps-intro {
  max-width: 640px;
  margin-bottom: 60px;
}

.sps-intro p {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  color: var(--text-secondary);
  line-height: 1.8;
}

.sps-layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.sps-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s;
}

.sps-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 229, 160, 0.06);
}

.sps-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-mid), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.sps-card:hover::before { opacity: 1; }

.sps-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-dim);
  margin-bottom: 12px;
  line-height: 1;
}

.sps-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.sps-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sps-card li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}

.sps-card li::before {
  content: '\2192';
  position: absolute;
  left: 0;
  color: var(--accent-mid);
}

.sps-footer {
  margin-top: 48px;
  text-align: center;
}

.sps-footer p {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
}

.sps-footer strong {
  color: var(--accent);
  font-weight: 600;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio-grid {
  display: grid;
  gap: 24px;
}

.portfolio-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s;
}

.portfolio-item:hover {
  border-color: var(--accent-mid);
  box-shadow: 0 8px 32px rgba(0, 229, 160, 0.04);
}

.portfolio-header {
  padding: 28px 28px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.portfolio-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.portfolio-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.5;
}

.portfolio-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  white-space: nowrap;
}

.portfolio-body { padding: 20px 28px 28px; }

.portfolio-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.portfolio-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

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

.chip {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  letter-spacing: 0.04em;
}

/* Two-col portfolio layout for larger items */
.portfolio-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

/* ============================================
   AI EXECUTION ENGINE
   ============================================ */
#ai-engine { text-align: center; }

.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 48px auto 40px;
}

.ai-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  text-align: left;
  transition: all 0.3s;
}

.ai-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-3px);
}

.ai-card-icon {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.ai-card h4 {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.ai-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.ai-statement {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.ai-statement strong { color: var(--accent); font-weight: 600; }

/* ============================================
   EVOLUTION TIMELINE
   ============================================ */
.evo-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
}

.evo-track::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-mid), var(--accent), var(--accent-mid));
}

.evo-phase {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: relative;
  z-index: 1;
}

.evo-phase::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 28px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
}

.evo-phase h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
  margin-top: 8px;
}

.evo-phase h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.evo-phase p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   THINKING SECTION
   ============================================ */
.thinking-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.thinking-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  transition: all 0.4s;
  cursor: default;
}

.thinking-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-3px);
}

.thinking-card .tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.thinking-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.35;
}

.thinking-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.thinking-note {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================
   EXPERIENCE
   ============================================ */
.exp-items { margin-top: 48px; }

.exp-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.exp-item:hover { border-color: var(--accent-mid); }

.exp-header {
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 16px;
}

.exp-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
}

.exp-marker {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.exp-header h3 {
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.exp-header .role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.exp-toggle {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  background: transparent;
  cursor: pointer;
}

.exp-toggle.open {
  transform: rotate(45deg);
  border-color: var(--accent);
  color: var(--accent);
}

.exp-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.exp-body-inner {
  padding: 0 28px 24px;
}

.exp-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}

.exp-body .achievements {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

/* ============================================
   CERTIFICATIONS
   ============================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-top: 40px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  transition: border-color 0.3s;
}

.cert-item:hover { border-color: var(--accent-mid); }

.cert-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 700;
}

.cert-info h4 {
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 2px;
}

.cert-info p {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ============================================
   CONTACT / ENGAGEMENT
   ============================================ */
#contact {
  text-align: center;
}

.contact-grid {
  max-width: 640px;
  margin: 40px auto 0;
  display: grid;
  gap: 16px;
}

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

.form-group { text-align: left; }

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.88rem;
  transition: border-color 0.3s;
  outline: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

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

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-group select option { background: var(--bg-secondary); }

.form-submit {
  margin-top: 8px;
}

.form-note {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 48px 24px;
  padding-bottom: calc(48px + var(--safe-bottom));
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-brand strong {
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
}

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

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  transition: color 0.3s;
}

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

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s, transform 0.5s;
}

.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }

.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 480px; }
  .architect-content { grid-template-columns: 1fr; gap: 40px; }
  .sps-layers { grid-template-columns: repeat(2, 1fr); }
  .evo-track { grid-template-columns: 1fr; }
  .evo-track::before { display: none; }
  .portfolio-featured { grid-template-columns: 1fr; }

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

  section { padding: 72px 20px; }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 640px) {
  section { padding: 56px 16px; }

  #hero { min-height: auto; padding-top: 100px; padding-bottom: 48px; }

  .hero-title { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { width: 100%; text-align: center; }
  .hero-stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .stat-box { padding: 12px 8px; }
  .stat-box .num { font-size: 1.1rem; }
  .stat-box .label { font-size: 0.58rem; }

  .sps-layers { grid-template-columns: 1fr; }

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

  .exp-header { flex-wrap: wrap; }
  .exp-header .role { width: 100%; margin-left: 26px; margin-top: -4px; }

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

  .manifesto-quote { font-size: clamp(1.3rem, 5vw, 1.8rem); }

  .thinking-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }

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

@media (max-width: 380px) {
  .hero-stats { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
}

/* ============================================
   PWA INSTALL PROMPT
   ============================================ */
.install-prompt {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 9999;
  background: var(--bg-tertiary);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: calc(100vw - 32px);
}

.install-prompt.show { transform: translateX(-50%) translateY(0); }

.install-prompt p {
  font-size: 0.85rem;
  color: var(--text-primary);
}

.install-prompt p small {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.install-prompt .install-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 8px 16px;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.install-prompt .dismiss-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.4rem;
  padding: 12px;
  line-height: 1;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}

/* ============================================
   STANDALONE MODE ADJUSTMENTS (installed PWA)
   ============================================ */
@media (display-mode: standalone) {
  .nav { padding-top: var(--safe-top); }
  .install-prompt { display: none !important; }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .grid-bg, .nav, .install-prompt { display: none; }
  body { background: white; color: black; }
  section { padding: 24px 0; }
}