:root {
  --bg: #071019;
  --bg-2: #0b1621;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.12);
  --text: #edf3fb;
  --muted: #9fb0c3;
  --accent: #dce8ff;
  --accent-soft: #9cc2ff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  overflow-x: hidden;
}

button,
a {
  font: inherit;
}

button {
  border: none;
  background: none;
}

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

.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.gradient {
  position: absolute;
  border-radius: 999px;
  filter: blur(120px);
  opacity: 0.35;
}

.gradient-1 {
  width: 360px;
  height: 360px;
  background: rgba(127, 174, 255, 0.18);
  top: -80px;
  left: -120px;
}

.gradient-2 {
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  top: 12%;
  right: -60px;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 95%);
}

.noise {
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image:
    radial-gradient(circle at 20% 20%, white 0.8px, transparent 1px),
    radial-gradient(circle at 80% 35%, white 0.8px, transparent 1px),
    radial-gradient(circle at 40% 75%, white 0.8px, transparent 1px);
  background-size: 120px 120px;
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(156, 194, 255, 0.14) 0%, rgba(156, 194, 255, 0.06) 30%, transparent 72%);
  pointer-events: none;
  transform: translate3d(-50%, -50%, 0);
  z-index: 0;
  will-change: transform;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 50;
  width: min(var(--max), calc(100% - 30px));
  margin: 14px auto 0;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(7, 16, 25, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: var(--text);
  padding: 0;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(220, 232, 255, 0.45);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link,
.menu-toggle,
.mobile-link,
.project-tab,
.class-toggle,
.btn {
  transition: 0.2s ease;
}

.nav-link,
.menu-toggle,
.mobile-link {
  color: var(--muted);
  cursor: pointer;
  padding: 10px 14px;
  border-radius: 14px;
}

.nav-link:hover,
.nav-link.active,
.menu-toggle:hover,
.mobile-link:hover {
  background: var(--panel);
  color: var(--text);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-menu {
  display: none;
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(7, 16, 25, 0.92);
  backdrop-filter: blur(18px);
  padding: 10px;
  box-shadow: var(--shadow);
}

.mobile-menu.open {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

main {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 30px));
  margin: 0 auto;
  padding-bottom: 100px;
}

.section {
  padding-top: 104px;
}

.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.eyebrow,
.section-kicker,
.panel-label,
.impact-label,
.typed-label {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.74rem;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(3.2rem, 8vw, 6.3rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
  margin: 16px 0 0;
  max-width: 780px;
}

.hero h1 span {
  color: rgba(237, 243, 251, 0.66);
}

.hero-text {
  max-width: 690px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.85;
  margin-top: 22px;
}

.hero-image {
  width: 100%;
  max-height: 220px;        /* controls size */
  object-fit: cover;
  object-position: center 20%;
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
  display: block;
  margin-bottom: 16px;
}

.typed-panel {
  margin-top: 28px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  padding: 16px 18px;
  width: min(470px, 100%);
}

.typed-line {
  margin-top: 10px;
  font-size: 1rem;
  color: var(--accent);
  min-height: 24px;
}

.cursor {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-buttons,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border-radius: 16px;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #0a1220;
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--panel-strong);
}

.panel-card,
.glass-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.035));
  box-shadow: var(--shadow);
}

.panel-card::before,
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    500px circle at var(--mx, 50%) var(--my, 50%),
    rgba(255,255,255,0.12),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.panel-card:hover::before,
.glass-card:hover::before {
  opacity: 1;
}

.hero-panel {
  display: flex;
  justify-content: flex-end;
}

.panel-card {
  width: 100%;
  max-width: 470px;
  padding: 22px;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.panel-badge {
  font-size: 0.8rem;
  color: var(--accent-soft);
}

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

.snapshot-item {
  min-height: 90px;
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: flex-end;
  line-height: 1.45;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.glass-card {
  padding: 24px;
}

.glass-card p {
  color: var(--muted);
  line-height: 1.85;
  margin: 0;
}

.glass-card p + p {
  margin-top: 16px;
}

.fact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.fact-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.fact-row:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.fact-row span {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.projects-shell {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 18px;
}

.project-tabs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-tab {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 20px;
  padding: 18px;
  text-align: left;
  cursor: pointer;
  color: var(--text);
}

.project-tab:hover,
.project-tab.active {
  background: rgba(255,255,255,0.08);
  border-color: rgba(156, 194, 255, 0.28);
}

.tab-type {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.tab-title {
  display: block;
  margin-top: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.project-view {
  min-height: 360px;
}

.project-meta,
.link-top,
.class-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.project-meta span,
.class-head span:first-child {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.project-view h3,
.link-card h3,
.class-card h3 {
  margin: 12px 0 0;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

.project-view p {
  margin-top: 18px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--accent);
  background: rgba(255,255,255,0.04);
  font-size: 0.92rem;
}

.impact-box {
  margin-top: 22px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.09);
  background: rgba(255,255,255,0.03);
}

.impact-box p {
  margin-top: 10px;
}

.classes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.class-card .class-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, margin-top 0.3s ease;
  margin-top: 0;
}

.class-card.open .class-body {
  max-height: 220px;
  margin-top: 14px;
}

.class-card .class-toggle {
  color: var(--accent);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}

.class-card .class-toggle:hover {
  background: rgba(255,255,255,0.08);
}

.connect-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.link-card {
  min-height: 180px;
}

.link-card:hover {
  transform: translateY(-3px);
}

.static-card:hover {
  transform: none;
}

.link-top span {
  color: var(--muted);
  font-size: 1.2rem;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 780px) {
  .hero-image {
    max-height: 180px;
  }
}

@media (max-width: 980px) {
  .hero,
  .two-col,
  .projects-shell,
  .classes-grid,
  .connect-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    justify-content: flex-start;
  }

  .panel-card {
    max-width: 100%;
  }
}

@media (max-width: 780px) {
  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    cursor: pointer;
    color: var(--text);
  }

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

  .hero h1 {
    font-size: clamp(2.7rem, 14vw, 4.6rem);
  }

  .cursor-glow {
    display: none;
  }
}