/* ─── Catppuccin Mocha ─────────────────────────────────── */
:root {
  --base: #1e1e2e;
  --mantle: #181825;
  --crust: #11111b;
  --surface0: #313244;
  --surface1: #45475a;
  --surface2: #585b70;
  --overlay0: #6c7086;
  --overlay1: #7f849c;
  --overlay2: #9399b2;
  --text: #cdd6f4;
  --subtext0: #a6adc8;
  --subtext1: #bac2de;
  --lavender: #b4befe;
  --blue: #89b4fa;
  --sapphire: #74c7ec;
  --sky: #89dceb;
  --teal: #94e2d5;
  --green: #a6e3a1;
  --yellow: #f9e2af;
  --peach: #fab387;
  --maroon: #eba0ac;
  --red: #f38ba8;
  --mauve: #cba6f7;
  --pink: #f5c2e7;
  --flamingo: #f2cdcd;
  --rosewater: #f5e0dc;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--base);
  color: var(--text);
  font-family: "JetBrains Mono", monospace;
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

::selection {
  background: var(--mauve);
  color: var(--crust);
}

/* ─── Scrollbar ────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--mantle);
}
::-webkit-scrollbar-thumb {
  background: var(--surface1);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--mauve);
}

/* ─── Nav ──────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3rem;
  height: 56px;
  background: rgba(17, 17, 27, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface0);
}

.nav-logo {
  font-family: "Fraunces", serif;
  font-size: 1.3rem;
  color: var(--mauve);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--subtext0);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--mauve);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

/* ─── Sections ─────────────────────────────────────────── */
section {
  min-height: 100vh;
  padding: 7rem 3rem 5rem;
  max-width: 1100px;
  margin: 0 auto;
}

section.full-width {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

/* ─── Section labels ───────────────────────────────────── */
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mauve);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::after {
  content: "";
  display: block;
  height: 1px;
  width: 3rem;
  background: var(--mauve);
  opacity: 0.5;
}

/* ─── Hero ─────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 5rem;
  position: relative;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s forwards;
}

.hero-name {
  font-family: "Fraunces", serif;
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.35s forwards;
}

.hero-name em {
  font-style: italic;
  color: var(--mauve);
}

.hero-subtitle {
  font-family: "Fraunces", serif;
  font-size: clamp(1.2rem, 3vw, 2.2rem);
  font-weight: 300;
  color: var(--subtext1);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.5s forwards;
}

.hero-desc {
  max-width: 560px;
  color: var(--subtext0);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.65s forwards;
}

.hero-by-line {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.3rem;
}

.hero-by {
  color: var(--text);
  font-size: 0.9rem;
}

.hero-by-role {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 0.85rem;
  color: var(--mauve);
  opacity: 0.8;
}

.hero-by-role::before {
  content: "— ";
  opacity: 0.4;
}

.hero-by-footer {
  display: block;
  margin-top: 1rem;
  color: var(--subtext0);
  font-size: 0.82rem;
  opacity: 0.75;
}

.hero-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s 0.8s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--mauve);
  color: var(--crust);
}
.btn-primary:hover {
  background: var(--lavender);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--surface1);
}
.btn-ghost:hover {
  border-color: var(--mauve);
  color: var(--mauve);
  transform: translateY(-2px);
}

/* Decorative grid bg */
#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--surface0) 1px, transparent 1px),
    linear-gradient(90deg, var(--surface0) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.18;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
  pointer-events: none;
}

/* ─── About ────────────────────────────────────────────── */
.about-section {
  min-height: auto;
  padding-bottom: 5rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--surface0);
  border: 1px solid var(--surface0);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 2.5rem;
}

.about-block {
  background: var(--mantle);
  padding: 1.75rem 2rem;
  position: relative;
  transition: background 0.2s;
}

.about-block:hover {
  background: var(--surface0);
}

.about-block--wide {
  grid-column: 1 / -1;
  border-top: 1px solid var(--surface0);
}

.about-block-tag {
  display: inline-block;
  margin-bottom: 0.85rem;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-block p {
  color: var(--subtext0);
  font-size: 0.85rem;
  line-height: 1.85;
}

.about-block p strong {
  color: var(--text);
  font-weight: 700;
}
.about-block p em {
  color: var(--mauve);
  font-style: italic;
}
.about-block p s {
  color: var(--overlay1);
}

.version-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.version-timeline::before {
  content: "";
  position: absolute;
  left: 0.65rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: var(--surface1);
}

.version-item {
  display: flex;
  gap: 1.25rem;
  padding: 1rem 0;
  position: relative;
}

.v-dot {
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--surface0);
  border: 2px solid var(--surface1);
  flex-shrink: 0;
  margin-top: 0.15rem;
  transition:
    border-color 0.2s,
    background 0.2s;
  position: relative;
  z-index: 1;
}

.version-item:hover .v-dot {
  border-color: var(--mauve);
  background: var(--mauve);
}

.v-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.v-year {
  font-size: 0.7rem;
  color: var(--mauve);
  margin-bottom: 0.3rem;
  letter-spacing: 0.05em;
}

.v-desc {
  font-size: 0.8rem;
  color: var(--subtext0);
  line-height: 1.6;
}

/* ─── Skills ───────────────────────────────────────────── */
#skills h2 {
  font-family: "Fraunces", serif;
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3rem;
}

#skills h2 em {
  font-style: italic;
  color: var(--mauve);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--surface0);
  border: 1px solid var(--surface0);
  border-radius: 8px;
  overflow: hidden;
}

.skill-card {
  background: var(--mantle);
  padding: 2rem;
  transition: background 0.2s;
}

.skill-card:hover {
  background: var(--surface0);
}

.skill-card-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: block;
}

.skill-card h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.skill-card p {
  font-size: 0.82rem;
  color: var(--subtext0);
  line-height: 1.7;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 3px;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.tag-blue {
  background: rgba(137, 180, 250, 0.12);
  color: var(--blue);
}
.tag-green {
  background: rgba(166, 227, 161, 0.12);
  color: var(--green);
}
.tag-peach {
  background: rgba(250, 179, 135, 0.12);
  color: var(--peach);
}
.tag-teal {
  background: rgba(148, 226, 213, 0.12);
  color: var(--teal);
}
.tag-mauve {
  background: rgba(203, 166, 247, 0.12);
  color: var(--mauve);
}
.tag-yellow {
  background: rgba(249, 226, 175, 0.12);
  color: var(--yellow);
}
.tag-sky {
  background: rgba(137, 220, 235, 0.12);
  color: var(--sky);
}

/* ─── Tutorials / Projects shared ─────────────────────── */
.section-heading {
  font-family: "Fraunces", serif;
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.section-heading em {
  font-style: italic;
  color: var(--mauve);
}

.section-intro {
  color: var(--subtext0);
  font-size: 0.88rem;
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 3rem;
}

/* ─── Card grid ────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--surface0);
  border: 1px solid var(--surface0);
  border-radius: 8px;
  overflow: hidden;
}

.card {
  background: var(--mantle);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--mauve);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.25s;
}

.card:hover {
  background: var(--surface0);
}
.card:hover::before {
  transform: scaleY(1);
}

.card-date {
  font-size: 0.68rem;
  color: var(--overlay1);
  letter-spacing: 0.06em;
}

.card-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  transition: color 0.2s;
}

.card:hover .card-title {
  color: var(--mauve);
}

.card-desc {
  font-size: 0.8rem;
  color: var(--subtext0);
  line-height: 1.6;
  flex: 1;
}

.card-arrow {
  font-size: 0.8rem;
  color: var(--overlay0);
  transition:
    color 0.2s,
    transform 0.2s;
  align-self: flex-end;
  margin-top: 0.5rem;
}

.card:hover .card-arrow {
  color: var(--mauve);
  transform: translateX(3px);
}

/* ─── Contact ──────────────────────────────────────────── */
#contact {
  min-height: auto;
  padding-bottom: 8rem;
}

.contact-inner {
  border: 1px solid var(--surface0);
  border-radius: 8px;
  padding: 3.5rem;
  background: var(--mantle);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-inner h2 {
  font-family: "Fraunces", serif;
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
}

.contact-inner h2 em {
  font-style: italic;
  color: var(--mauve);
}

.contact-inner p {
  color: var(--subtext0);
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--surface0);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
  background: var(--base);
  transition: all 0.2s;
  font-size: 0.85rem;
}

.contact-link:hover {
  border-color: var(--mauve);
  color: var(--mauve);
  transform: translateX(4px);
}

.contact-link-icon {
  font-size: 1.1rem;
  width: 1.5rem;
  text-align: center;
}

.contact-link-label {
  flex: 1;
}

.contact-link-handle {
  font-size: 0.72rem;
  color: var(--overlay1);
}

/* ─── Footer ───────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--surface0);
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--overlay0);
}

footer a {
  color: var(--overlay1);
  text-decoration: none;
}
footer a:hover {
  color: var(--mauve);
}

/* ─── Animations ───────────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

/* ─── Divider ──────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--surface0);
  max-width: 1100px;
  margin: 0 auto;
}

/* ─── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
  nav {
    padding: 0 1.5rem;
  }
  .nav-links {
    gap: 1.2rem;
  }
  section {
    padding: 6rem 1.5rem 4rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-block--wide {
    grid-column: 1;
  }
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem;
  }
  .hero-name {
    font-size: clamp(2.8rem, 12vw, 5rem);
  }
  footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}