/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:        #fafaf8;
  --text:      #111;
  --text-sec:  #555;
  --accent:    #2d6a4f;
  --accent-lt: #d8f3dc;
  --border:    #e5e5e5;
  --card-bg:   #fff;
  --max-w:     1100px;
  --nav-h:     56px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.65;
}

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

ul {
  list-style: none;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-sec);
  transition: color 0.2s;
}

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

/* ===== HERO ===== */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 560px 1fr;
  gap: 48px;
  align-items: start;
}

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
}

.hero-bio {
  font-size: 15px;
  color: var(--text-sec);
  line-height: 1.75;
  max-width: 480px;
}

/* NAV CARDS */
.nav-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.nav-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(45, 106, 79, 0.08);
}

.nav-card:hover .nav-card-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

.nav-card-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-card-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.nav-card-sub {
  font-size: 12px;
  color: var(--text-sec);
}

.nav-card-arrow {
  font-size: 18px;
  color: var(--text-sec);
  transition: transform 0.2s, color 0.2s;
}

/* RIPPLE */
.ripple-circle {
  position: absolute;
  border-radius: 50%;
  background: rgba(45, 106, 79, 0.12);
  transform: scale(0);
  animation: ripple-anim 0.55s linear;
  pointer-events: none;
}

@keyframes ripple-anim {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== CANVAS GRID ===== */
.hero-right {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

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

.canvas-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.canvas-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-sec);
  padding: 8px 10px 4px;
}

.canvas-block canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1.4 / 1;
}

/* ===== SECTIONS ===== */
.section {
  padding: 72px 24px;
}

.section-alt {
  background: #f3f4f0;
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--text);
}

/* ===== EXPERIENCE ===== */
.exp-item {
  border-left: 2px solid var(--accent);
  padding-left: 24px;
  margin-bottom: 40px;
}

.exp-item:last-child {
  margin-bottom: 0;
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.exp-company {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.exp-role {
  display: block;
  font-size: 13px;
  color: var(--text-sec);
  margin-top: 2px;
}

.exp-date {
  font-size: 12px;
  color: var(--text-sec);
  white-space: nowrap;
  margin-top: 2px;
}

.exp-bullets {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: disc;
  padding-left: 18px;
}

.exp-bullets li {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.7;
}

/* ===== PROJECTS ===== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(45, 106, 79, 0.07);
}

.project-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.project-desc {
  font-size: 13px;
  color: var(--text-sec);
  line-height: 1.7;
  flex: 1;
}

.project-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.metric {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-lt);
  border-radius: 4px;
  padding: 2px 8px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-sec);
  background: #f0f0ec;
  border-radius: 4px;
  padding: 2px 8px;
}

.tag-accent {
  color: var(--accent);
  background: var(--accent-lt);
}

.project-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  transition: opacity 0.2s;
}

.project-link:hover {
  opacity: 0.75;
}

/* ===== HACKATHONS ===== */
.hackathon-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.hackathon-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(45, 106, 79, 0.07);
}

.hackathon-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.hackathon-event {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 3px;
}

.hackathon-host {
  font-size: 12px;
  color: var(--text-sec);
}

.hackathon-result {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-lt);
  border-radius: 4px;
  padding: 3px 10px;
  white-space: nowrap;
  align-self: flex-start;
}

.hackathon-nodes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.hack-node {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hack-node--done {
  border-color: var(--accent);
  background: rgba(216, 243, 220, 0.25);
}

.hack-node--wip {
  border-style: dashed;
  opacity: 0.65;
}

.hack-node-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
}

.hack-node--wip .hack-node-label {
  color: var(--text-sec);
}

.hack-node-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.hack-node-desc {
  font-size: 11px;
  color: var(--text-sec);
  line-height: 1.65;
  margin-top: 2px;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.skill-group-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-sec);
  margin-bottom: 10px;
}

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

/* ===== CONTACT ===== */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s;
}

.contact-item:hover {
  color: var(--accent);
}

.contact-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-sec);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hackathon-nodes {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-right {
    position: static;
  }

  .canvas-block canvas {
    aspect-ratio: 1.6 / 1;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

@media (max-width: 540px) {
  .hero {
    padding: 40px 16px 60px;
  }

  .section {
    padding: 48px 16px;
  }

  .hackathon-card {
    padding: 20px;
  }

  .hackathon-nodes {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 1.8rem;
  }

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

  .canvas-block canvas {
    aspect-ratio: 2 / 1;
  }

  .nav-links {
    gap: 16px;
  }

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