/* ============================================================
   SQUARED STUDIO — Main Stylesheet
   ============================================================ */

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

:root {
  --bg:            #000000;
  --bg-2:          #050508;
  --bg-3:          #0a0a0f;
  --border:        rgba(0,204,255,0.08);
  --border-glow:   rgba(0,204,255,0.40);
  --text:          #e8f4ff;
  --text-muted:    #4a7080;
  --accent:        #00ccff;
  --accent-2:      #00ffcc;
  --accent-glow:   rgba(0,204,255,0.25);
  --green:         #00ffcc;
  --highlight:     #00ccff;
  --highlight-2:   #00ffcc;
  --highlight-glow:rgba(0,204,255,0.28);
  --font:          'Inter', system-ui, sans-serif;
  --mono:          'JetBrains Mono', monospace;
  --radius:        14px;
  --radius-lg:     22px;
  --transition:    0.25s ease;
  --shadow:        0 4px 30px rgba(0,0,0,0.85);
  --shadow-glow:   0 0 40px rgba(0,204,255,0.2);
}

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); }
ul { list-style: none; }

/* ---------- Selection ---------- */
::selection {
  background: var(--highlight);
  color: #000000;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 2px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 1px; }
::-webkit-scrollbar-thumb:hover { background: var(--highlight-2); }

/* ---------- Container ---------- */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Section Base ---------- */
.section { padding: 100px 0; }

.section-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}

.section-label::before {
  content: '// ';
  opacity: 0.5;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 56px;
  text-align: center;
}

.text-center { text-align: center; }

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #060500;
  box-shadow: 0 0 20px rgba(0,204,255,0.4);
}
.btn-primary:hover {
  background: var(--accent-2);
  box-shadow: 0 0 32px rgba(0,204,255,0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--highlight);
  color: var(--highlight-2);
  box-shadow: 0 0 16px var(--highlight-glow);
  transform: translateY(-2px);
}

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

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background 0.35s ease, padding 0.35s ease, backdrop-filter 0.35s;
}

.navbar.scrolled {
  background: rgba(1, 1, 0, 0.95);
  backdrop-filter: blur(16px);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.logo-img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  flex-shrink: 0;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--highlight-2); background: rgba(0,204,255,0.08); }

/* Nav CTA */
.nav-cta {
  padding: 9px 22px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 9px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
  flex-shrink: 0;
}
.nav-cta:hover {
  background: var(--accent-2);
  box-shadow: 0 0 18px rgba(0,204,255,0.5);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#circuitCanvas {
  width: 100%;
  height: 100%;
  opacity: 0.10;
}

/* Radial gradient overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 50%, rgba(0,204,255,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,255,204,0.06) 0%, transparent 60%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  background: rgba(0,204,255,0.1);
  border: 1px solid rgba(0,204,255,0.3);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-num {
  font-family: var(--mono);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent-2);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg-2); }

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

.about-text p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 1rem;
}

.about-highlights {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.highlight-icon {
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.highlight-item strong {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 3px;
}

.highlight-item span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Chip Diagram */
.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.chip-diagram {
  position: relative;
  width: 320px;
  height: 320px;
}

.chip-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  background: transparent;
  border: 1.5px solid var(--border-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow), inset 0 1px 0 rgba(0,204,255,0.04);
  z-index: 2;
  overflow: hidden;
}

.chip-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

.chip-block {
  position: absolute;
  width: 72px;
  height: 72px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.chip-block:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  box-shadow: 0 0 18px rgba(0,204,255,0.2);
}

.top-left    { top: 20px; left: 20px; }
.top-right   { top: 20px; right: 20px; }
.bottom-left { bottom: 20px; left: 20px; }
.bottom-right{ bottom: 20px; right: 20px; }

/* Traces */
.chip-trace { position: absolute; background: rgba(0,204,255,0.2); z-index: 1; }
.h-trace { height: 1px; width: 60px; top: 50%; transform: translateY(-50%); }
.v-trace { width: 1px; height: 60px; left: 50%; transform: translateX(-50%); }
.t1 { left: 92px; }
.t2 { right: 92px; }
.t3 { top: 92px; }
.t4 { bottom: 92px; }

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,204,255,0.06), transparent);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.active-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

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

.card-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  background: rgba(0,204,255,0.1);
  border: 1px solid rgba(0,204,255,0.3);
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 24px;
}

.card-badge--soon {
  color: var(--accent-2);
  background: rgba(0,204,255,0.08);
  border-color: rgba(0,204,255,0.3);
}

.card-badge--planned {
  color: var(--text-muted);
  background: rgba(123,130,166,0.1);
  border-color: rgba(123,130,166,0.2);
}

.service-card:not(.active-card):hover {
  border-color: rgba(0,204,255,0.2);
  transform: translateY(-2px);
}

.service-icon {
  width: 52px;
  height: 52px;
  color: var(--accent-2);
  margin-bottom: 20px;
}
.service-icon svg { width: 100%; height: 100%; }

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.service-card p {
  font-size: 0.93rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}

.service-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Learn More link inside service cards */
.service-learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent-2);
  font-family: var(--mono);
  letter-spacing: 0.03em;
  transition: var(--transition);
}

.service-learn-more:hover {
  color: var(--accent);
  gap: 10px;
}

/* ============================================================
   ROADMAP / TIMELINE
   ============================================================ */
.roadmap { background: var(--bg-2); }

.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), rgba(0,204,255,0.05));
}

.timeline-item {
  position: relative;
  padding: 0 0 44px 32px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 2px solid var(--border);
  transition: var(--transition);
}

.active-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(0,204,255,0.6);
}

.timeline-content {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: var(--transition);
}

.timeline-item.active .timeline-content {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.timeline-item.upcoming .timeline-content {
  opacity: 0.6;
}

.timeline-item.upcoming:hover .timeline-content {
  opacity: 0.85;
  border-color: var(--border);
  transform: translateX(4px);
}

.timeline-phase {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 6px;
}

.timeline-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ============================================================
   WHY US
   ============================================================ */
.why { background: var(--bg); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.why-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  transition: var(--transition);
}

.why-card:hover {
  border-color: var(--highlight);
  transform: translateY(-4px);
  box-shadow: 0 0 32px var(--highlight-glow);
}

.why-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1;
}

.why-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.why-link {
  color: var(--accent-2);
  text-decoration: underline;
  text-decoration-color: rgba(0,255,204,0.35);
  transition: var(--transition);
}
.why-link:hover { color: var(--accent); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--bg-2); }

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 56px;
  align-items: start;
}

/* Form */
.contact-form {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.93rem;
  transition: var(--transition);
  resize: vertical;
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234a7080' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--highlight);
  box-shadow: 0 0 0 3px rgba(0,204,255,0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(74,112,128,0.6);
}

.form-group select option {
  background: var(--bg-3);
  color: var(--text);
}

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 14px;
}

/* Contact info sidebar */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 8px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.contact-icon {
  font-size: 1.2rem;
  color: var(--accent-2);
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}

.contact-item strong {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 3px;
}

.contact-item a,
.contact-item span {
  font-size: 0.93rem;
  color: var(--text);
}

.contact-item a:hover { color: var(--highlight-2); }

.contact-tagline {
  margin-top: 8px;
  padding: 20px 22px;
  background: linear-gradient(135deg, rgba(0,204,255,0.08), rgba(0,255,204,0.04));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius);
}

.contact-tagline p {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.6;
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-3);
  border: 1px solid var(--green);
  color: var(--text);
  padding: 14px 22px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  z-index: 9999;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.35s ease;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ============================================================
   PEOPLE
   ============================================================ */
.people { background: var(--bg-3); }

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.person-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: var(--transition);
}

.person-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.person-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,204,255,0.2), rgba(0,255,204,0.12));
  border: 1.5px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-2);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(0,204,255,0.15);
  overflow: hidden;
}

.person-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.person-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.person-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.person-role {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(0,204,255,0.1);
  border: 1px solid rgba(0,204,255,0.25);
  padding: 3px 10px;
  border-radius: 12px;
  align-self: flex-start;
}

.person-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.person-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}

.person-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.person-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: var(--transition);
}

.person-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.person-link:hover {
  color: var(--accent-2);
  border-color: var(--border-glow);
  background: rgba(0,204,255,0.06);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-3);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.6;
}

.footer-brand .logo { margin-bottom: 4px; }

.footer-links {
  display: flex;
  gap: 60px;
}

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

.footer-col h5 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-col a:hover { color: var(--highlight-2); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}

.footer-bottom span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { order: -1; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 600px) {
  .section { padding: 70px 0; }
  .hero { padding: 100px 0 60px; }
  .hero-stats { gap: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { gap: 32px; }
  .contact-form { padding: 28px 20px; }
  .chip-diagram { width: 260px; height: 260px; }
  .chip-core { width: 100px; height: 100px; }
  .chip-block { width: 56px; height: 56px; font-size: 0.65rem; }
  .people-grid { grid-template-columns: 1fr; }
}

/* Mobile nav open state */
.nav-links.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(1, 1, 0, 0.98);
  backdrop-filter: blur(12px);
  padding: 24px;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}
.nav-links.open a {
  padding: 12px 16px;
  font-size: 1rem;
}

/* ============================================================
   TECH STACK (About section)
   ============================================================ */
.tech-stack {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.stack-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

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

.stack-tag {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent-2);
  background: rgba(0,204,255,0.08);
  border: 1px solid rgba(0,204,255,0.2);
  padding: 4px 12px;
  border-radius: 6px;
  white-space: nowrap;
}

/* Skill hierarchy variants */
.stack-tag--core {
  color: var(--accent);
  background: rgba(0,204,255,0.14);
  border-color: rgba(0,204,255,0.45);
  font-weight: 600;
}

.stack-tag--dim {
  color: var(--text-muted);
  background: rgba(0,204,255,0.04);
  border-color: rgba(0,204,255,0.1);
}

.stack-tier {
  margin-bottom: 14px;
}
.stack-tier:last-child { margin-bottom: 0; }

/* Availability dot in hero stats */
.hero-avail {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.avail-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(0,255,204,0.8);
  animation: availPulse 2.2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes availPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(0,255,204,0.8); }
  50%       { box-shadow: 0 0 14px rgba(0,255,204,1), 0 0 28px rgba(0,255,204,0.4); }
}

/* ============================================================
   CASE STUDIES
   ============================================================ */
.case-studies { background: var(--bg-2); }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.case-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
}

.case-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.case-num {
  font-family: var(--mono);
  font-size: 2.4rem;
  font-weight: 600;
  color: rgba(0,204,255,0.14);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.04em;
}

.case-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.tech-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--highlight-2);
  background: rgba(0,204,255,0.08);
  border: 1px solid rgba(0,255,204,0.25);
  padding: 3px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.case-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.case-challenge,
.case-outcome {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.75;
}

.case-outcome { margin-bottom: 0; }

.case-role {
  font-weight: 600;
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   FOOTER — three-column responsive
   ============================================================ */
.footer-links { flex-wrap: wrap; }

/* ============================================================
   SUB-PAGE SHARED STYLES (services/, people/, work/)
   ============================================================ */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.breadcrumb a { color: var(--accent-2); transition: var(--transition); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb-sep { opacity: 0.4; }

/* Page Hero */
.page-hero {
  padding: 140px 0 80px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.page-hero-inner {
  display: flex;
  align-items: flex-start;
  gap: 36px;
  margin-top: 8px;
}

.page-hero-icon {
  width: 72px;
  height: 72px;
  color: var(--accent-2);
  flex-shrink: 0;
  padding: 14px;
  background: rgba(0,204,255,0.06);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius);
  box-shadow: 0 0 24px rgba(0,204,255,0.12);
}
.page-hero-icon svg { width: 100%; height: 100%; }

.page-hero-content { flex: 1; }

.page-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 14px 0 18px;
}

.page-description {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.page-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Detail grid */
.detail-section { background: var(--bg); }
.detail-section + .detail-section { background: var(--bg-2); }

.detail-intro {
  max-width: 700px;
  margin: 0 auto 56px;
  text-align: center;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.bio-text {
  max-width: 800px;
  margin: 0 auto;
}

.bio-text p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 20px;
}

.bio-text p:last-child {
  margin-bottom: 0;
}

.bio-text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.bio-text a:hover {
  opacity: 0.8;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.detail-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.detail-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.detail-card-icon {
  width: 38px;
  height: 38px;
  color: var(--accent-2);
  margin-bottom: 18px;
}
.detail-card-icon svg { width: 100%; height: 100%; }

.detail-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.detail-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-card li {
  font-size: 0.87rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.detail-card li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Page CTA */
.page-cta {
  background: var(--bg-3);
  border-top: 1px solid var(--border);
  padding: 80px 0;
  text-align: center;
}

.page-cta-box {
  max-width: 580px;
  margin: 0 auto;
}

.page-cta-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.page-cta-box p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* Person profile */
.profile-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 56px;
  align-items: start;
}

.profile-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px solid var(--border-glow);
  box-shadow: 0 0 40px rgba(0,204,255,0.18);
  overflow: hidden;
  flex-shrink: 0;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile-name {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 14px 0 6px;
  line-height: 1.1;
}

.profile-bio {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 580px;
}

.expertise-section { background: var(--bg-2); }

/* Responsive sub-pages */
@media (max-width: 700px) {
  .page-hero-inner { flex-direction: column; gap: 20px; }
  .profile-grid { grid-template-columns: 1fr; }
  .profile-avatar { width: 140px; height: 140px; }
  .page-hero { padding: 110px 0 56px; }
}

/* ============================================================
   WORK / CASE STUDY DETAIL PAGES
   ============================================================ */

.case-hero-num {
  font-family: var(--mono);
  font-size: 5rem;
  font-weight: 600;
  color: rgba(0,204,255,0.10);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.case-section {
  background: var(--bg);
}
.case-section + .case-section {
  background: var(--bg-2);
}

.case-block {
  max-width: 780px;
  margin: 0 auto;
}

.case-block + .case-block {
  margin-top: 56px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

.case-block-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}
.case-block-label::before {
  content: '// ';
  opacity: 0.5;
}

.case-block h2 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.case-block p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}

.case-block p:last-child { margin-bottom: 0; }

.case-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.case-highlight-item {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: var(--transition);
}

.case-highlight-item:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 18px rgba(0,204,255,0.12);
}

.case-highlight-value {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-2);
  line-height: 1;
  margin-bottom: 6px;
}

.case-highlight-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.case-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.case-step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.case-step-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0,204,255,0.08);
  border: 1px solid rgba(0,204,255,0.25);
  border-radius: 6px;
  padding: 3px 9px;
  flex-shrink: 0;
  margin-top: 2px;
}

.case-step p {
  margin-bottom: 0;
}

/* "Read More" link on case cards */
.case-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent-2);
  font-family: var(--mono);
  letter-spacing: 0.03em;
  transition: var(--transition);
}

.case-read-more:hover {
  color: var(--accent);
  gap: 10px;
}

@media (max-width: 600px) {
  .case-hero-num { font-size: 3.5rem; }
  .case-highlights { grid-template-columns: 1fr 1fr; }
}