/* ---------- Base ---------- */
:root {
  --bg: #0a0e1a;
  --bg-alt: #0f1419;
  --card: #1a1f2e;
  --accent: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-tertiary: #06b6d4;
  --accent-soft: rgba(0, 212, 255, 0.15);
  --text: #e4e8f0;
  --muted: #8b92a8;
  --border-subtle: rgba(100, 150, 255, 0.12);
  --glow: rgba(0, 212, 255, 0.4);
  --radius-xl: 1.6rem;
  --shadow-soft: 0 20px 70px rgba(0, 20, 40, 0.6);
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.1);
  --max-width: 1120px;
  --transition-fast: 180ms ease-out;
  --transition-smooth: 400ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", "Inter", sans-serif;
  background:
    linear-gradient(135deg, #0a0e1a 0%, #12162a 50%, #0a0e1a 100%),
    radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
  position: relative;
  color: var(--text);
  line-height: 1.6;
  letter-spacing: -0.015em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

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

img {
  max-width: 100%;
  display: block;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  background: rgba(10, 14, 26, 0.85);
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
  box-shadow:
    0 1px 0 rgba(0, 212, 255, 0.08),
    0 8px 32px rgba(0, 20, 40, 0.4);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(10, 14, 26, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.3);
  box-shadow:
    0 4px 12px rgba(0, 212, 255, 0.2),
    0 0 20px rgba(0, 212, 255, 0.1),
    inset 0 1px 0 rgba(100, 150, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.brand-mark:hover {
  transform: scale(1.08) translateY(-2px);
  border-color: var(--accent);
  box-shadow:
    0 6px 16px rgba(0, 212, 255, 0.35),
    0 0 30px rgba(0, 212, 255, 0.2),
    inset 0 1px 0 rgba(100, 150, 255, 0.15);
}

.brand-logo {
  width: 100%;
  height: 100%;
}

.brand-text span:first-child {
  font-weight: 600;
}

.brand-text span:last-child {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 1.4rem;
  font-size: 0.88rem;
}

.nav-links a {
  position: relative;
  color: var(--muted);
  padding-bottom: 0.12rem;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-secondary) 100%);
  box-shadow: 0 0 8px var(--glow);
  transition: width var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
}

/* ---------- Hero ---------- */
main {
  padding-top: 64px; /* space for navbar */
}

.hero-wrapper {
  position: relative;
  overflow: hidden;
}

.hero {
  padding: 4.75rem 0 4rem;
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 3.1fr) minmax(0, 2.7fr);
  gap: 3.5rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.4rem;
  }
}

.hero-bg-orbit {
  position: absolute;
  inset: -40vh -20vw 0 -20vw;
  background:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.22), transparent 60%),
    radial-gradient(circle at 100% 20%, rgba(34, 197, 94, 0.18), transparent 60%),
    radial-gradient(circle at 50% 120%, rgba(30, 64, 175, 0.35), transparent 70%);
  opacity: 0.7;
  pointer-events: none;
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

.hero-orbit-lines {
  position: absolute;
  inset: -20vh -10vw -40vh -10vw;
  background-image:
    radial-gradient(circle, rgba(148, 163, 184, 0.06) 1px, transparent 0);
  background-size: 40px 40px;
  mix-blend-mode: screen;
  opacity: 0.38;
  pointer-events: none;
  transform: translate3d(0, 0, 0);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 16px 40px rgba(15, 23, 42, 0.9);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 1.4rem;
}

.hero-eyebrow-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: radial-gradient(circle, #22c55e, #16a34a);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.9);
}

.hero-title {
  font-size: clamp(2.5rem, 4vw, 3.2rem);
  line-height: 1.1;
  margin-bottom: 0.8rem;
}

.hero-title span {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.3));
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--muted);
  max-width: 36rem;
  margin-bottom: 1.8rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.tag {
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.85);
  color: #e5e7eb;
  backdrop-filter: blur(6px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform var(--transition-smooth),
    box-shadow var(--transition-smooth),
    background var(--transition-smooth),
    border-color var(--transition-smooth);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-tertiary) 100%);
  color: #0a0e1a;
  font-weight: 600;
  box-shadow:
    0 4px 16px rgba(0, 212, 255, 0.4),
    0 0 20px rgba(0, 212, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 8px 28px rgba(0, 212, 255, 0.5),
    0 0 40px rgba(0, 212, 255, 0.3);
  background: linear-gradient(135deg, #00e5ff 0%, #14b8a6 100%);
}

.btn-ghost {
  background: rgba(26, 31, 46, 0.6);
  color: var(--text);
  border-color: rgba(0, 212, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: rgba(26, 31, 46, 0.9);
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 4px 16px rgba(0, 212, 255, 0.2),
    0 0 24px rgba(0, 212, 255, 0.1);
}

.btn span.icon {
  font-size: 1.1rem;
}

/* hero image with parallax layers */
.hero-visual {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.5rem;
  background: radial-gradient(circle at top left, #1d2438, #020617 70%);
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-parallax-layer {
  position: absolute;
  inset: -20%;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.18), transparent 55%),
    radial-gradient(circle at 90% 100%, rgba(34, 197, 94, 0.2), transparent 55%);
  opacity: 0.8;
  mix-blend-mode: screen;
  will-change: transform;
}

.hero-img-frame {
  position: relative;
  border-radius: 1.1rem;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: #020617;
  aspect-ratio: 4 / 3;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center;
  will-change: transform;
}

.hero-img-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(15, 23, 42, 0.85), transparent 40%),
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.25), transparent 50%);
  mix-blend-mode: soft-light;
}

.hero-legend {
  position: absolute;
  right: 1.6rem;
  bottom: 1.6rem;
  padding: 0.6rem 0.9rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.94);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.16rem;
}

.hero-legend-label {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-legend-title {
  font-size: 0.8rem;
}

.hero-legend-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.15rem;
}

.legend-badge {
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  font-size: 0.68rem;
  color: var(--muted);
}

/* ---------- Sections ---------- */
section {
  padding: 1.5rem 0 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
}

.section-caption {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Scroll reveal utility ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 600ms ease-out,
    transform 600ms ease-out;
}

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

.reveal-slow {
  transition-duration: 800ms;
}

/* ---------- About ---------- */
.about-card {
  border-radius: var(--radius-xl);
  padding: 1.5rem 1.4rem;
  background: rgba(26, 31, 46, 0.6);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(0, 212, 255, 0.12);
  box-shadow:
    0 20px 60px rgba(0, 20, 40, 0.5),
    0 0 40px rgba(0, 212, 255, 0.05),
    inset 0 1px 0 rgba(100, 150, 255, 0.08);
  display: grid;
  grid-template-columns: minmax(0, 3.5fr) minmax(0, 2.4fr);
  gap: 1.6rem;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.about-card:hover {
  box-shadow:
    0 24px 70px rgba(0, 20, 40, 0.6),
    0 0 50px rgba(0, 212, 255, 0.1),
    inset 0 1px 0 rgba(100, 150, 255, 0.12);
  border-color: rgba(0, 212, 255, 0.25);
}

@media (max-width: 900px) {
  .about-card {
    grid-template-columns: minmax(0, 1fr);
  }
}

.about-text {
  font-size: 0.95rem;
  color: #e5e7eb;
}

.about-text p + p {
  margin-top: 0.7rem;
}

.about-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  font-size: 0.83rem;
}

@media (max-width: 640px) {
  .about-meta {
    grid-template-columns: minmax(0, 1fr);
  }
}

.meta-item {
  padding: 0.75rem 0.9rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.meta-value {
  display: block;
}

.meta-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.1rem;
}

.meta-pill {
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  font-size: 0.7rem;
  color: #cbd5f5;
  background: rgba(15, 23, 42, 0.96);
}

/* ---------- Projects ---------- */
.projects-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
  font-size: 0.8rem;
}

.filter-chip {
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  cursor: pointer;
  color: var(--muted);
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform 120ms ease-out;
}

.filter-chip.active,
.filter-chip:hover {
  color: #e5e7eb;
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.98);
  transform: translateY(-1px);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .projects-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.project-card {
  position: relative;
  border-radius: 1.6rem;
  overflow: hidden;
  background: rgba(26, 31, 46, 0.6);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(0, 212, 255, 0.12);
  box-shadow:
    0 20px 60px rgba(0, 20, 40, 0.5),
    0 0 40px rgba(0, 212, 255, 0.05),
    inset 0 1px 0 rgba(100, 150, 255, 0.08);
  display: flex;
  flex-direction: column;
  cursor: default;
  transform-origin: center;
  transform-style: preserve-3d;
  will-change: transform, opacity;
  transition:
    transform var(--transition-smooth),
    box-shadow var(--transition-smooth),
    border-color var(--transition-smooth),
    background var(--transition-smooth),
    opacity var(--transition-smooth);
}

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 30px 80px rgba(0, 20, 40, 0.7),
    0 0 60px rgba(0, 212, 255, 0.15),
    0 0 0 1px rgba(0, 212, 255, 0.3),
    inset 0 1px 0 rgba(100, 150, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.4);
  background: rgba(26, 31, 46, 0.85);
}

.project-card.expanded {
  background: rgba(26, 31, 46, 0.9);
  border-color: var(--accent);
  box-shadow:
    0 40px 100px rgba(0, 20, 40, 0.8),
    0 0 80px rgba(0, 212, 255, 0.25),
    0 0 0 2px var(--accent),
    inset 0 1px 0 rgba(100, 150, 255, 0.2);
  grid-column: 1 / -1;
  transform: scale(1.02);
}

.project-media {
  padding: 0.9rem 0.9rem 0;
  will-change: transform;
}

.project-media-inner {
  border-radius: 0.8rem;
  overflow: hidden;
  border: 1px solid rgba(55, 65, 81, 0.9);
  aspect-ratio: 16 / 9;
  position: relative;
  background: #020617;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Gallery */
.project-gallery {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

[data-gallery-img] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0a0e1a;
  opacity: 0;
  transition: opacity 250ms ease-out;
}

[data-gallery-img].active {
  opacity: 1;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #e5e7eb;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease-out,
    background 180ms ease-out,
    transform 180ms ease-out,
    border-color 180ms ease-out;
}

.gallery-nav-prev {
  left: 0.6rem;
}

.gallery-nav-next {
  right: 0.6rem;
}

.project-card.expanded .gallery-nav {
  opacity: 1;
  pointer-events: auto;
}

.gallery-nav:hover {
  background: rgba(15, 23, 42, 0.98);
  border-color: var(--accent);
  transform: translateY(-50%) translateZ(0) scale(1.03);
}

.gallery-dots {
  position: absolute;
  inset: auto 0 0.45rem 0;
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease-out;
}

.project-card.expanded .gallery-dots {
  opacity: 1;
  pointer-events: auto;
}

.gallery-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.8);
  background: rgba(15, 23, 42, 0.85);
  cursor: pointer;
  padding: 0;
  outline: none;
  transition:
    background 160ms ease-out,
    transform 160ms ease-out,
    border-color 160ms ease-out;
}

.gallery-dot.active {
  background: #38bdf8;
  border-color: #38bdf8;
  transform: scale(1.1);
}

.project-media-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.26), transparent 60%),
    radial-gradient(circle at 90% 130%, rgba(30, 64, 175, 0.6), transparent 60%);
  mix-blend-mode: screen;
  opacity: 0.9;
  pointer-events: none;
}

.project-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-body {
  padding: 0.7rem 0.9rem 0.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.project-title-row {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  align-items: baseline;
}

.project-title {
  font-size: 0.95rem;
  font-weight: 500;
}

.project-meta {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: right;
}

.project-role {
  font-size: 0.78rem;
  color: var(--muted);
}

.project-desc {
  font-size: 0.83rem;
  color: #d1d5db;
}

.project-tags {
  margin-top: 0.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  font-size: 0.74rem;
}

.project-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  color: #cbd5f5;
  background: rgba(15, 23, 42, 0.95);
}

.project-details {
  padding: 0 0.9rem 0.9rem;
  font-size: 0.84rem;
  color: #e5e7eb;
  border-top: 1px solid rgba(55, 65, 81, 0.85);
  margin-top: 0.35rem;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(6px);
  transition:
    max-height 260ms ease-out,
    opacity 260ms ease-out,
    transform 260ms ease-out;
}

.project-card.expanded .project-details {
  max-height: 650px;
  opacity: 1;
  transform: translateY(0);
}

.project-details p + p {
  margin-top: 0.5rem;
}

.project-details ul {
  margin: 0.4rem 0 0 1.1rem;
  padding-left: 0;
}

.project-details li {
  margin-bottom: 0.25rem;
}

.project-footer {
  margin-top: auto; /* push footer to bottom of card */
  padding: 0 0.9rem 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--muted);
  gap: 0.5rem;
  flex-wrap: wrap;
}

.project-links {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.project-link {
  padding: 0.24rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.95);
  cursor: pointer;
  background: rgba(15, 23, 42, 0.96);
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform 120ms ease-out;
  font-size: 0.75rem;
}

.project-link:hover {
  border-color: var(--accent);
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.98);
  transform: translateY(-1px);
}

/* Bright "More details / Less details" button */
.project-link.project-toggle {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-tertiary) 100%);
  color: #0a0e1a;
  border-color: transparent;
  box-shadow:
    0 4px 16px rgba(0, 212, 255, 0.4),
    0 0 24px rgba(0, 212, 255, 0.2);
  font-weight: 600;
}

.project-link.project-toggle:hover {
  box-shadow:
    0 6px 20px rgba(0, 212, 255, 0.5),
    0 0 36px rgba(0, 212, 255, 0.3);
  transform: translateY(-1px);
  background: linear-gradient(135deg, #00e5ff 0%, #14b8a6 100%);
}

.project-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.project-toggle-icon {
  font-size: 0.9rem;
  transition: transform 180ms ease-out;
}

.project-card.expanded .project-toggle-icon {
  transform: rotate(90deg);
}

/* ---------- Contact ---------- */
.contact-card {
  margin-top: 0.5rem;
  border-radius: var(--radius-xl);
  padding: 1.3rem 1.2rem;
  background: rgba(26, 31, 46, 0.6);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(0, 212, 255, 0.12);
  box-shadow:
    0 20px 60px rgba(0, 20, 40, 0.5),
    0 0 40px rgba(0, 212, 255, 0.05),
    inset 0 1px 0 rgba(100, 150, 255, 0.08);
  display: grid;
  grid-template-columns: minmax(0, 3.1fr) minmax(0, 2.4fr);
  gap: 1.3rem;
  font-size: 0.9rem;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.contact-card:hover {
  box-shadow:
    0 24px 70px rgba(0, 20, 40, 0.6),
    0 0 50px rgba(0, 212, 255, 0.1),
    inset 0 1px 0 rgba(100, 150, 255, 0.12);
  border-color: rgba(0, 212, 255, 0.25);
}

@media (max-width: 800px) {
  .contact-card {
    grid-template-columns: minmax(0, 1fr);
  }
}

.contact-text {
  color: #e5e7eb;
}

.contact-rows {
  display: grid;
  gap: 0.6rem;
}

.contact-row-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.1rem;
}

.contact-row-value a {
  color: #e5e7eb;
}

.contact-row-value a:hover {
  text-decoration: underline;
}

/* ---------- Footer ---------- */
footer {
  padding: 1.9rem 0 2.2rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ---------- LBM Simulator ---------- */
#lbm-canvas {
  width: 100%;
  height: auto;
  display: block;
  background: #020617;
  border-radius: 0.5rem;
}

#cavity-canvas {
  display: block;
  margin: 0 auto;
  background: #020617;
  border-radius: 0.5rem;
  box-shadow:
    0 0 40px rgba(0, 212, 255, 0.15),
    0 0 80px rgba(0, 150, 200, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.5);
  position: relative;
  max-width: 85%;
  max-height: 85%;
  width: auto;
  height: auto;
  z-index: 1;
}

/* Blurred background effect for cavity */
.project-media-inner:has(#cavity-canvas) {
  background: radial-gradient(
    ellipse at center,
    rgba(0, 212, 255, 0.03) 0%,
    #020617 60%
  );
}

.project-media-inner:has(#cavity-canvas)::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(
    circle at center,
    rgba(0, 212, 255, 0.12) 0%,
    rgba(0, 180, 220, 0.08) 20%,
    rgba(0, 150, 200, 0.04) 40%,
    transparent 70%
  );
  filter: blur(50px);
  z-index: 0;
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.8;
  }
}

.lbm-controls {
  position: absolute;
  bottom: 0.6rem;
  left: 0.6rem;
  right: 0.6rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(148, 163, 184, 0.6);
  border-radius: 0.7rem;
  padding: 0.65rem 0.75rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  font-size: 0.7rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease-out, transform 300ms ease;
  z-index: 100;
}

.project-card.expanded .lbm-controls {
  opacity: 1;
  pointer-events: auto;
}

.lbm-controls.collapsed {
  transform: translateY(calc(100% + 0.6rem));
  opacity: 0;
  pointer-events: none;
}

.lbm-controls-toggle {
  position: absolute;
  bottom: 0.6rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2rem;
  height: 2rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(148, 163, 184, 0.6);
  border-radius: 0.5rem;
  color: var(--accent);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 200ms ease;
  opacity: 0;
  pointer-events: none;
  z-index: 101;
}

.project-card.expanded .lbm-controls-toggle,
.project-media-inner:hover .lbm-controls-toggle {
  opacity: 1;
  pointer-events: auto;
}

.lbm-controls-toggle:hover {
  background: rgba(15, 23, 42, 1);
  border-color: var(--accent);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.lbm-toggle-icon {
  transition: transform 200ms ease;
  display: inline-block;
  line-height: 1;
}

.lbm-control-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.lbm-control-group label {
  color: var(--muted);
  font-size: 0.68rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lbm-control-group label span {
  color: var(--accent);
  font-weight: 500;
  font-family: monospace;
}

.lbm-control-group select,
.lbm-control-group input[type="range"],
.lbm-control-group input[type="checkbox"] {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
  border-radius: 0.35rem;
  padding: 0.3rem 0.4rem;
  color: var(--text);
  font-size: 0.7rem;
  outline: none;
}

.lbm-control-group input[type="checkbox"] {
  width: auto;
  margin-right: 0.4rem;
  cursor: pointer;
  accent-color: var(--accent);
}

.lbm-control-group select {
  cursor: pointer;
}

.lbm-control-group select:hover,
.lbm-control-group select:focus {
  border-color: var(--accent);
}

.lbm-control-group input[type="range"] {
  padding: 0;
  height: 1.5rem;
  cursor: pointer;
}

.lbm-control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.lbm-control-group input[type="range"]::-moz-range-thumb {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

.lbm-control-buttons {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.4rem;
  margin-top: 0.2rem;
}

.lbm-btn {
  flex: 1;
  padding: 0.4rem 0.6rem;
  border-radius: 0.4rem;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.9);
  color: var(--text);
  font-size: 0.72rem;
  cursor: pointer;
  transition:
    background 150ms ease-out,
    border-color 150ms ease-out,
    transform 100ms ease-out;
}

.lbm-btn:hover {
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.98);
  transform: translateY(-1px);
}

.lbm-btn-start {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-tertiary) 100%);
  color: #0a0e1a;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.lbm-btn-start:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.5), 0 0 30px rgba(0, 212, 255, 0.4);
}

.lbm-btn-start.running {
  background: linear-gradient(135deg, #ff3b3b 0%, #ff6b6b 100%);
  box-shadow: 0 0 20px rgba(255, 59, 59, 0.4);
  color: #ffffff;
}

@media (max-width: 640px) {
  .lbm-controls {
    grid-template-columns: 1fr;
    font-size: 0.65rem;
  }

  .lbm-control-group label {
    font-size: 0.65rem;
  }
}

/* ---------- Small screens tweaks ---------- */
@media (max-width: 480px) {
  .hero {
    padding-top: 3.8rem;
  }
}