/* ============================================
   TOKENS
   ============================================ */
:root {
  --c-black: #0b0d0a;
  --c-olive-deep: #1c1e15;
  --c-olive: #2f331f;
  --c-olive-mid: #4b5320;
  --c-olive-line: #545b3c;
  --c-beige: #d8cfb4;
  --c-beige-soft: #ede7d6;
  --c-white: #faf8f2;
  --c-lime: #9caf60;

  --font-display: "Fraunces", serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --spine-w: 220px;
  --edge: 6vw;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============================================
   RESET
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--c-black);
  color: var(--c-beige-soft);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

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

img { max-width: 100%; display: block; }

.mono { font-family: var(--font-mono); letter-spacing: 0.01em; }

:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

/* ============================================
   INTRO SEQUENCE
   ============================================ */
.intro {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--c-black);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease), visibility 0.8s var(--ease);
}

.intro.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-inner {
  text-align: center;
  padding: 0 24px;
}

.intro-line {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.4rem);
  color: var(--c-beige-soft);
  min-height: 1.6em;
}

.cursor {
  display: inline-block;
  color: var(--c-lime);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.intro-enter {
  margin-top: 40px;
  background: transparent;
  border: 1px solid var(--c-olive-line);
  color: var(--c-beige);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 22px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), border-color 0.25s, color 0.25s;
}

.intro-enter.visible {
  opacity: 1;
  transform: translateY(0);
}

.intro-enter:hover {
  border-color: var(--c-lime);
  color: var(--c-lime);
}

.intro-enter svg { transition: transform 0.25s var(--ease); }
.intro-enter:hover svg { transform: translateX(3px); }

/* ============================================
   SPINE NAV
   ============================================ */
.spine {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--spine-w);
  height: 100vh;
  border-right: 1px solid var(--c-olive);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 0 0 0 28px;
  z-index: 50;
}

.spine-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  color: var(--c-beige);
  opacity: 0.45;
  transition: opacity 0.3s var(--ease), padding-left 0.3s var(--ease);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.spine-link:hover { opacity: 0.8; padding-left: 6px; }

.spine-link.active {
  opacity: 1;
  color: var(--c-lime);
  padding-left: 6px;
}

.spine-num { color: var(--c-olive-line); }
.spine-link.active .spine-num { color: var(--c-lime); }

@media (max-width: 900px) {
  .spine { display: none; }
}

/* ============================================
   LAYOUT / SECTIONS
   ============================================ */
main {
  margin-left: var(--spine-w);
}

@media (max-width: 900px) {
  main { margin-left: 0; }
}

.section {
  padding: 120px var(--edge);
  border-bottom: 1px solid var(--c-olive);
  position: relative;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.log-tag {
  font-size: 0.78rem;
  color: var(--c-lime);
  margin-bottom: 28px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  max-width: 760px;
  margin-bottom: 20px;
  color: var(--c-white);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--c-olive);
}

.hero-photo-wrap {
  margin-bottom: 28px;
}

.hero-photo {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--c-olive-line);
  filter: grayscale(15%);
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--c-olive-line);
  border-radius: 999px;
  padding: 7px 16px;
  width: fit-content;
  margin-bottom: 36px;
  font-size: 0.78rem;
  color: var(--c-beige);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 0 0 rgba(156, 175, 96, 0.5);
  animation: pulse 2.2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(156, 175, 96, 0.45); }
  70% { box-shadow: 0 0 0 8px rgba(156, 175, 96, 0); }
  100% { box-shadow: 0 0 0 0 rgba(156, 175, 96, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.2rem, 6.4vw, 4.6rem);
  line-height: 1.1;
  color: var(--c-white);
  max-width: 16ch;
}

.hero-title-em {
  font-style: italic;
  font-weight: 500;
  color: var(--c-beige);
}

.hero-sub {
  margin-top: 28px;
  max-width: 52ch;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--c-beige);
}

.hero-links {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--c-beige);
}

.hero-links a { border-bottom: 1px solid transparent; transition: border-color 0.2s, color 0.2s; }
.hero-links a:hover { color: var(--c-lime); border-color: var(--c-lime); }
.hero-links span { color: var(--c-olive-line); }

.scroll-cue {
  position: absolute;
  bottom: 40px;
  left: var(--edge);
  font-size: 0.7rem;
  color: var(--c-olive-line);
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
}

.about-lead {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  color: var(--c-white);
  line-height: 1.4;
}

.about-body p {
  color: var(--c-beige);
  margin-bottom: 18px;
  max-width: 58ch;
}

.about-body strong { color: var(--c-lime); font-weight: 500; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ============================================
   PROJECTS
   ============================================ */
.project-card {
  border: 1px solid var(--c-olive);
  border-radius: 4px;
  margin-top: 20px;
  overflow: hidden;
  background: var(--c-olive-deep);
}

.project-toggle {
  width: 100%;
  background: none;
  border: none;
  color: inherit;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 28px;
  cursor: pointer;
  text-align: left;
  gap: 20px;
}

.project-toggle-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--c-white);
}

.project-tagline {
  font-size: 0.9rem;
  color: var(--c-beige);
}

.project-plus {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--c-lime);
  flex-shrink: 0;
  transition: transform 0.35s var(--ease);
}

.project-toggle[aria-expanded="true"] .project-plus {
  transform: rotate(45deg);
}

.project-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease);
}

.project-body-inner {
  padding: 0 28px 32px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  border-top: 1px solid var(--c-olive);
  padding-top: 24px;
}

.project-main p {
  color: var(--c-beige);
  margin-bottom: 14px;
  max-width: 62ch;
}

.project-stack {
  font-size: 0.78rem;
  color: var(--c-olive-line);
  margin: 18px 0 14px;
  line-height: 1.7;
}

.project-link {
  font-size: 0.85rem;
  color: var(--c-lime);
  border-bottom: 1px solid var(--c-lime);
  padding-bottom: 2px;
}

.field-log {
  border-left: 1px dashed var(--c-olive-line);
  padding-left: 20px;
}

.field-log-title {
  font-size: 0.72rem;
  color: var(--c-olive-line);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.field-log ul { list-style: none; }

.field-log li {
  font-size: 0.8rem;
  color: var(--c-beige);
  margin-bottom: 16px;
  display: flex;
  gap: 10px;
  line-height: 1.55;
}

.fl-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-lime);
  margin-top: 7px;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .project-body-inner { grid-template-columns: 1fr; gap: 20px; }
  .field-log { border-left: none; border-top: 1px dashed var(--c-olive-line); padding-left: 0; padding-top: 16px; }
}

/* ============================================
   OPEN SOURCE
   ============================================ */
.os-card {
  border: 1px solid var(--c-olive);
  border-radius: 4px;
  padding: 32px 28px;
  max-width: 720px;
}

.os-card + .os-card {
  margin-top: 20px;
}

.os-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.os-head h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  color: var(--c-white);
}

.os-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--c-lime);
  border: 1px solid var(--c-olive-line);
  border-radius: 999px;
  padding: 5px 12px;
}

.os-card p {
  color: var(--c-beige);
  margin-bottom: 20px;
  max-width: 60ch;
}

.os-card code {
  font-family: var(--font-mono);
  background: var(--c-olive);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.85em;
}

/* ============================================
   IN PUBLIC
   ============================================ */
.public-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
  max-width: 760px;
}

.public-card {
  border: 1px solid var(--c-olive);
  border-radius: 4px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  transition: border-color 0.25s, transform 0.25s var(--ease);
}

.public-card:hover {
  border-color: var(--c-lime);
  transform: translateY(-3px);
}

.public-card-label {
  font-size: 0.72rem;
  color: var(--c-lime);
}

.public-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-white);
}

.public-card-arrow {
  position: absolute;
  top: 20px;
  right: 22px;
  color: var(--c-olive-line);
  transition: transform 0.25s var(--ease), color 0.25s;
}

.public-card:hover .public-card-arrow {
  color: var(--c-lime);
  transform: translate(3px, -3px);
}

@media (max-width: 700px) {
  .public-links { grid-template-columns: 1fr; }
}

/* ============================================
   NUMBERS
   ============================================ */
.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
  border-top: 1px solid var(--c-olive);
  padding-top: 44px;
}

.number-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.number-value {
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  color: var(--c-white);
}

.number-label {
  font-size: 0.72rem;
  color: var(--c-olive-line);
  line-height: 1.5;
  max-width: 20ch;
}

@media (max-width: 900px) {
  .numbers { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .numbers { grid-template-columns: 1fr; }
}

/* ============================================
   EDUCATION
   ============================================ */
.edu-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--c-olive);
}

.edu-row:first-of-type { border-top: none; }

.edu-year {
  color: var(--c-olive-line);
  font-size: 0.8rem;
  padding-top: 4px;
}

.edu-body h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--c-white);
  margin-bottom: 4px;
}

.edu-body p {
  color: var(--c-beige);
  font-size: 0.92rem;
}

.edu-extra {
  margin-top: 24px;
  font-size: 0.78rem;
  color: var(--c-lime);
  line-height: 1.8;
}

@media (max-width: 600px) {
  .edu-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ============================================
   CONNECT
   ============================================ */
.connect {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: none;
}

.connect-title { color: var(--c-white); }

.connect-email {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  color: var(--c-lime);
  margin: 24px 0 32px;
  display: inline-block;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
  width: fit-content;
}

.connect-email:hover { border-color: var(--c-lime); }

.connect-links { margin-top: 0; }

.footer {
  margin-top: 100px;
  font-size: 0.7rem;
  color: var(--c-olive-line);
}

/* ============================================
   RESPONSIVE — MOBILE TOP NAV FALLBACK
   ============================================ */
@media (max-width: 900px) {
  .section { padding: 90px 6vw; }
  :root { --edge: 6vw; }
}