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

/* ── Theme: Deep Ocean ───────────────────────────────────── */
:root {
  --color-bg: #080d14;
  --color-surface: #0e1520;
  --color-border: #182030;
  --color-text: #ddeaf8;
  --color-muted: #6e8aaa;
  --color-accent: #38bdf8;
  --color-accent-hover: #7dd3fc;
  --color-accent-fg: #080d14;

  --color-accent-border: color-mix(
    in srgb,
    var(--color-accent) 50%,
    var(--color-border)
  );
  --color-accent-hover-bg: color-mix(
    in srgb,
    var(--color-accent) 5%,
    var(--color-surface)
  );
  --color-badge-bg: color-mix(in srgb, var(--color-accent) 12%, transparent);
  --color-badge-border: color-mix(
    in srgb,
    var(--color-accent) 25%,
    transparent
  );
  --color-icon-bg: color-mix(in srgb, var(--color-accent) 15%, transparent);

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
}
/* ─────────────────────────────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

body {
  background-color: var(--color-bg);
  background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  animation: fadeUp 0.4s ease 0.1s both;
}

header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  animation: fadeIn 0.3s ease both;
}

header .logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-accent);
  text-decoration: none;
}

nav a {
  color: var(--color-muted);
  text-decoration: none;
  margin-left: 2rem;
  font-size: 0.9rem;
  transition: color 0.2s;
  position: relative;
  padding-bottom: 2px;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

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

nav a:hover::after,
nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
  }

  nav a {
    margin-left: 0;
    margin-right: 0;
  }

  nav {
    display: flex;
    gap: 1.5rem;
  }
}

main {
  flex: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 2rem;
  width: 100%;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h1 span {
  color: var(--color-accent);
}

.tagline {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 520px;
  margin-bottom: 3rem;
}

.actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    background 0.2s,
    color 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ── Home page ────────────────────────────────────────────── */

.home-main {
  padding-top: 4rem;
  padding-bottom: 6rem;
}

.hero {
  margin-bottom: 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -6rem;
  left: -8rem;
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at center, var(--color-accent), transparent 65%);
  opacity: 0.07;
  pointer-events: none;
  z-index: -1;
}

.hero-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 2rem;
}

.home-about {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 4rem;
}

.home-about-text {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 1rem;
  max-width: 600px;
}

.about-link {
  font-size: 0.875rem;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

.about-link:hover {
  color: var(--color-accent-hover);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.featured-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text);
  transition:
    border-color 0.2s,
    background 0.2s;
}

.featured-card:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-hover-bg);
}

.featured-card-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.featured-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.featured-employer {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-muted);
}

.featured-desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.all-work-link {
  font-size: 0.875rem;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

.all-work-link:hover {
  color: var(--color-accent-hover);
}

/* ── About page ───────────────────────────────────────────── */

.about-main {
  padding-top: 4rem;
}

.about-bio {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 4rem;
}

.about-section {
  margin-bottom: 4rem;
}

.section-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--color-border);
  padding-left: 1.5rem;
  margin-left: 0.25rem;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: 0.45rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  outline: 1px solid var(--color-accent);
}

.timeline-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.75rem;
  margin-bottom: 0.85rem;
}

.timeline-role {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--color-accent);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-muted);
  margin-left: auto;
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timeline-bullets li {
  font-size: 0.9rem;
  color: var(--color-muted);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.6;
}

.timeline-bullets li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--color-border);
  font-weight: 700;
}

.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-group-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ── Work page ────────────────────────────────────────────── */

.work-main {
  padding-top: 4rem;
}

.project-anchor {
  display: block;
  height: 0;
  overflow: hidden;
  scroll-margin-top: 6rem;
}

.loading-text {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.projects-list {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.employer-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.employer-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.employer-period {
  font-size: 0.72rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.project-card.is-open,
.project-card:focus-within {
  border-color: var(--color-accent-border);
}

.project-summary {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.project-summary:hover {
  background: var(--color-accent-hover-bg);
}

.project-summary-left {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.project-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}

.project-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-muted);
}

.project-tagline {
  font-size: 0.85rem;
  color: var(--color-muted);
  text-align: right;
  max-width: 280px;
  line-height: 1.4;
}

.project-chevron {
  color: var(--color-muted);
  display: flex;
  align-items: center;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.project-card.is-open .project-chevron {
  transform: rotate(180deg);
}

.project-details {
  padding: 0 1.25rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

.project-description {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.7;
  padding-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.project-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}

.project-highlights li {
  font-size: 0.9rem;
  color: var(--color-text);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.5;
}

.project-highlights li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}

.tech-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--color-badge-bg);
  color: var(--color-accent);
  border: 1px solid var(--color-badge-border);
}

.project-link {
  font-size: 0.85rem;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.2s;
}

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

@media (max-width: 600px) {
  .project-summary {
    grid-template-columns: 1fr auto;
  }

  .project-tagline {
    display: none;
  }
}

/* ── Contact page ─────────────────────────────────────────── */

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text);
  transition:
    border-color 0.2s,
    background 0.2s;
  max-width: 480px;
}

.contact-card:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-hover-bg);
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 6px;
  background: var(--color-icon-bg);
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.contact-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
}

nav a[aria-current="page"] {
  color: var(--color-accent);
}

/* active page underline handled by nav a[aria-current="page"]::after in nav section */

footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-muted);
}