:root {
  --g1: #e8f5e9;
  --g2: #c8e6c9;
  --g3: #a5d6a7;
  --g4: #66bb6a;
  --g5: #388e3c;
  --g6: #1b5e20;
  --mint: #b2dfdb;
  --sage: #d4e8d0;
  --cream: #f9fdf9;
  --white: #ffffff;
  --dark: #1a2e1a;
  --text: #2d4a2d;
  --muted: #6a8f6a;
  --shadow: 0 8px 32px rgba(56,142,60,0.12);
  --shadow-hover: 0 20px 60px rgba(56,142,60,0.22);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "DM Sans", sans-serif;
  background: var(--cream);
  color: var(--text);
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--g1);
}
::-webkit-scrollbar-thumb {
  background: var(--g4);
  border-radius: 3px;
}

.cursor {
  width: 14px;
  height: 14px;
  background: var(--g5);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.15s ease;
  mix-blend-mode: multiply;
}

.cursor-ring {
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--g4);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.35s ease, opacity 0.2s;
  opacity: 0.6;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 6vw;
  transition: background 0.4s, box-shadow 0.4s;
}

nav.scrolled {
  background: rgba(249,253,249,0.93);
  backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(56,142,60,0.08);
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s;
  z-index: 101;
}

.nav-logo:hover {
  opacity: 0.75;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--g4);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--g5);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 101;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--g5);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.3s;
}

.nav-overlay.open {
  display: block;
  opacity: 1;
}

#projects-hero {
  min-height: 52vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  padding: 140px 6vw 80px;
  background:
    radial-gradient(ellipse 80% 60% at 70% 30%, rgba(165,214,167,0.35) 0%, transparent 65%),
    radial-gradient(ellipse 60% 80% at 10% 80%, rgba(178,223,219,0.3) 0%, transparent 60%),
    linear-gradient(160deg, #f0faf0 0%, #e8f5e9 40%, #f4fbf4 100%);
}

.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-lines svg {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  color: var(--g5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.2s forwards;
}

.hero-eyebrow span {
  display: inline-block;
  width: 36px;
  height: 1px;
  background: var(--g4);
}

.hero-title {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 6vw, 3.8rem);
  line-height: 1.12;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--g5);
}

.hero-sub {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  color: var(--muted);
  line-height: 1.75;
  max-width: 520px;
  margin: 0 auto;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

#filter-section {
  padding: 50px 6vw 0;
  max-width: 1200px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.filter-btn {
  padding: 0.45rem 1.3rem;
  border-radius: 50px;
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1.5px solid var(--g2);
  background: transparent;
  color: var(--muted);
  transition: all 0.25s;
}

.filter-btn:hover {
  border-color: var(--g4);
  color: var(--g5);
  background: var(--g1);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--g4), var(--g5));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(56,142,60,0.3);
}

#projects-grid {
  padding: 50px 6vw 100px;
  max-width: 1200px;
  margin: 0 auto;
}

.projects-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.8rem;
}

.project-card {
  background: white;
  border-radius: 20px;
  border: 1px solid var(--g2);
  overflow: hidden;
  transition: all 0.4s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--g3);
}

.project-card[data-hidden="true"] {
  display: none;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--g4), var(--mint));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.project-card:hover::before {
  transform: scaleX(1);
}

.card-visual {
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, var(--g1) 0%, #eef7ee 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-visual-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(102,187,106,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102,187,106,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
}

.card-visual-icon {
  position: relative;
  z-index: 1;
  width: 100%;        
  height: 100%;       
  border-radius: 0;   
  background: white;
  border: none;       
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;   
  transition: transform 0.3s ease;
  overflow: hidden;
}

.card-visual-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card:hover .card-visual-icon {
  transform: scale(1.08) rotate(-3deg);
}

.card-visual-icon svg {
  width: 40px;
  height: 40px;
}

.card-status {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.card-status.live {
  background: rgba(56,142,60,0.15);
  color: var(--g5);
  border: 1px solid rgba(56,142,60,0.25);
}

.card-status.progress {
  background: rgba(255,167,38,0.15);
  color: #e65100;
  border: 1px solid rgba(255,167,38,0.3);
}

.card-status.demo {
  background: rgba(178,223,219,0.3);
  color: #00695c;
  border: 1px solid rgba(178,223,219,0.5);
}

.card-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.badge-academic {
  background: rgba(165,214,167,0.3);
  color: var(--g6);
  border: 1px solid var(--g3);
}

.badge-personal {
  background: rgba(178,223,219,0.3);
  color: #00695c;
  border: 1px solid var(--mint);
}

.card-body {
  padding: 1.5rem 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-family: "Playfair Display", serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.65;
  font-weight: 300;
  flex: 1;
}

.card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}

.card-tech-tag {
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--g1);
  color: var(--g6);
  border: 1px solid var(--g2);
  transition: all 0.2s;
}

.card-tech-tag:hover {
  background: var(--g2);
  transform: scale(1.05);
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s;
  letter-spacing: 0.02em;
}

.card-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.card-link-gh {
  background: var(--dark);
  color: white;
}

.card-link-gh:hover {
  background: var(--g6);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}

.card-link-demo {
  background: linear-gradient(135deg, var(--g4), var(--g5));
  color: white;
  box-shadow: 0 3px 12px rgba(56,142,60,0.3);
}

.card-link-demo:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56,142,60,0.4);
}

.card-link-live {
  background: var(--g1);
  color: var(--g5);
  border: 1.5px solid var(--g3);
}

.card-link-live:hover {
  background: var(--g2);
  transform: translateY(-2px);
}

.card-link-pres {
  background: rgba(178,223,219,0.3);
  color: #00695c;
  border: 1px solid var(--mint);
}

.card-link-pres:hover {
  background: rgba(178,223,219,0.5);
  transform: translateY(-2px);
}

.card-divider {
  height: 1px;
  background: var(--g1);
  margin: 1rem 0 0;
}

.card-role {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.3rem 0.8rem;
  background: linear-gradient(135deg, rgba(56,142,60,0.1), rgba(178,223,219,0.2));
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--g5);
  font-weight: 500;
  margin-bottom: 0.8rem;
  border: 1px solid rgba(56,142,60,0.15);
}

.card-role svg {
  width: 12px;
  height: 12px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  color: var(--g5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section-label::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1.5px;
  background: var(--g4);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

#stats-section {
  background: var(--dark);
  padding: 60px 6vw;
  position: relative;
  overflow: hidden;
}

#stats-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--g4), var(--mint), var(--g4), transparent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.stats-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

.stat-item {
  position: relative;
  z-index: 1;
}

.stat-num {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--g4);
  line-height: 1;
  display: block;
}

.stat-label {
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 6px;
}

footer {
  background: #111e11;
  padding: 2.4rem 6vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-left {
  font-family: "Playfair Display", serif;
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
}

.footer-left span {
  display: block;
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-top: 3px;
}

.footer-copy {
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.06em;
}

.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--g5);
  color: white;
  padding: 0.9rem 1.6rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 9997;
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.no-results {
  grid-column: 1/-1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .cursor,
  .cursor-ring {
    display: none;
  }

  nav {
    padding: 14px 5vw;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 280px;
    height: 100vh;
    background: rgba(249,253,249,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    transition: right 0.4s ease;
    box-shadow: -8px 0 30px rgba(56,142,60,0.1);
    z-index: 100;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .hamburger {
    display: flex;
  }

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

  footer {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .toast {
    bottom: 20px;
    right: 16px;
    left: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .filter-bar {
    gap: 0.4rem;
  }

  .filter-btn {
    font-size: 0.68rem;
    padding: 0.35rem 0.9rem;
  }
}