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

:root {
  --sans: 'DM Sans', sans-serif;
  --serif: 'DM Serif Display', serif;
  --ink: #111111;
  --muted: #3d3d3d;
  --hint: #666666;
  --border: rgba(0, 0, 0, 0.14);
  --surface: #f5f5f3;
  --card: #ffffff;
  --bg: #fafaf8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f5f2ed;
    --muted: #d0ccc6;
    --hint: #a09b94;
    --border: rgba(255, 255, 255, 0.12);
    --surface: #1e1e1c;
    --card: #252523;
    --bg: #161614;
  }
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 3rem 1.5rem;
  border-bottom: 0.5px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

/* Hero */
.hero {
  position: relative;
  padding: 7rem 3rem 5rem;
  border-bottom: 0.5px solid var(--border);
  background-color: #2c2a26;
  /* BACKGROUND IMAGE: Replace the url() below with your image path e.g. url('hero-bg.jpg') */
  background-image: url('/images/light-dark-lightwaves-bw.jpg');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

/* Overlay — adjust rgba alpha (0.0–1.0) to control darkness */
/* Using a warm deep brown-navy tone instead of grey or black */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(30, 24, 18, 0.3);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--serif);
  font-size: 3.2rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 640px;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.hero p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.85rem;
  border: 0.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.6);
}

/* Sections */
section {
  padding: 4rem 3rem;
  border-top: 0.5px solid var(--border);
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hint);
  margin-bottom: 2.5rem;
  padding-bottom: 1rem;
  border-bottom: 0.5px solid var(--border);
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s;
}

.project-card:hover {
  border-color: var(--muted);
}

.project-thumb {
  width: 100%;
  aspect-ratio: 860 / 700;
  background: var(--surface);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.project-type {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hint);
  margin-bottom: 0.4rem;
}

.project-name {
  font-family: var(--serif);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  line-height: 1.2;
  color: var(--ink);
}

.project-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.project-link {
  font-size: 1rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 0.5px solid var(--border);
  padding-bottom: 1px;
  transition:
    color 0.2s,
    border-color 0.2s;
}

.project-link:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: top center;
  border-radius: 8px;
  display: block;
}
.placeholder-img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 8px;
  background: var(--surface);
  color: var(--hint);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.placeholder-img svg {
  opacity: 0.4;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.skill-group {
  padding: 1.25rem 1.5rem;
  border: 0.5px solid var(--border);
  border-radius: 8px;
}

.skill-group h4 {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hint);
  margin-bottom: 0.75rem;
}

.skill-list {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 2;
}

/* Experience */
.exp-list {
  display: flex;
  flex-direction: column;
}

.exp-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 0.5px solid var(--border);
}

.exp-item:first-child {
  border-top: 0.5px solid var(--border);
}

.exp-dates {
  font-size: 0.8rem;
  color: var(--hint);
  padding-top: 0.2rem;
}

.exp-role {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: var(--ink);
}

.exp-company {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.exp-bullets {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.8;
  padding-left: 1rem;
}

.exp-bullets li {
  margin-bottom: 0.25rem;
}

/* Contact */
.contact-wrap {
  max-width: 520px;
}

.contact-wrap p {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.contact-fields {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact-fields input,
.contact-fields textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  border: 0.5px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  resize: none;
  outline: none;
  transition: border-color 0.2s;
}

.contact-fields input:focus,
.contact-fields textarea:focus {
  border-color: var(--muted);
}

.contact-fields textarea {
  height: 130px;
}

.send-btn {
  font-family: var(--sans);
  font-size: 0.875rem;
  padding: 0.7rem 2rem;
  border: 0.5px solid var(--muted);
  border-radius: 100px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.2s;
}

.send-btn:hover {
  background: var(--surface);
}

.sent-msg {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.75rem;
  display: none;
}

/* Footer */
footer {
  padding: 2rem 3rem;
  border-top: 0.5px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--hint);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--hint);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--muted);
}

/* Responsive */
@media (max-width: 640px) {
  nav {
    padding: 1.25rem 1.5rem;
  }
  .nav-links {
    gap: 1.25rem;
  }
  .hero {
    padding: 4rem 1.5rem 3rem;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  section {
    padding: 2.5rem 1.5rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .exp-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  footer {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
  }
}