/* Tokens */
:root {
  --bg: #f5f1eb;
  --bg-alt: #ede9e2;
  --bg-card: #efeae3;
  --border: #ddd8d0;
  --border-lt: #e8e3dc;
  --ink: #1a1a1a;
  --ink-mid: #555550;
  --ink-soft: #888880;
  --ink-ghost: #9a9a94;
  --accent: #2a5c45;
  --accent-bg: #eaf1ed;
  --serif: "Playfair Display", Georgia, serif;
  --sans: "DM Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --radius: 6px;
  --max: 1080px;
  --nav-h: 68px;
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
}

/* Grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* Layout */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--accent);
  color: #fff;
  padding: 14px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--sans);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 10000;
  box-shadow: 0 8px 32px rgba(42, 92, 69, 0.22);
  white-space: nowrap;
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.error {
  background: #b94040;
}
.toast-icon {
  font-size: 16px;
}

/* Nav */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}
nav.scrolled {
  background: rgba(245, 241, 235, 0.9);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
}
.nav-links a {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}
.nav-cta {
  font-size: 12px !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--bg) !important;
  padding: 9px 20px;
  border-radius: var(--radius);
  transition: background 0.2s !important;
}
.nav-cta::after {
  display: none !important;
}
.nav-cta:hover {
  background: var(--accent) !important;
  color: #fff !important;
}

/* Lang toggle */
.lang-toggle {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.lang-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 4px 7px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: border-color 0.2s, background 0.2s;
}
.lang-btn.active {
  border-color: var(--border);
  background: var(--bg-alt);
}
.lang-btn:hover:not(.active) {
  border-color: var(--border-lt);
}

/* Hero */
#hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 100px;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 60px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(40px, 4.5vw, 60px);
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 28px;
}
.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--ink-mid);
}
.hero-bio {
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 44px;
}
.hero-bio strong {
  color: var(--ink);
  font-weight: 500;
}
.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: var(--bg);
  padding: 13px 28px;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.15s;
  font-weight: 500;
}
.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-mid);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 13px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.btn-ghost svg {
  transition: transform 0.2s;
}
.btn-ghost:hover svg {
  transform: translateX(3px);
}

/* Hero card */
.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.hero-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 11px;
  font-family: var(--mono);
  padding: 6px 12px;
  border-radius: 20px;
  width: fit-content;
  border: 1px solid rgba(42, 92, 69, 0.15);
}
.hero-card-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
.hero-stat {
  padding-left: 18px;
  border-left: 2px solid var(--border);
  transition: border-color 0.2s;
}
.hero-stat:hover {
  border-left-color: var(--accent);
}
.hero-stat-num {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 600;
  line-height: 1;
}
.hero-stat-label {
  font-size: 11px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.hero-stat-sub {
  font-size: 10px;
  color: var(--ink-ghost);
  margin-top: 2px;
}

/* Sections */
section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type {
  border-bottom: none;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-label::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--border);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--ink-mid);
}
.section-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.7;
  max-width: 520px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 60px;
}
.about-text p {
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-text p:last-child {
  margin-bottom: 0;
}
.about-text strong {
  color: var(--ink);
  font-weight: 500;
}

/* Skills */
.skills-header {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 20px;
}
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  transition: border-color 0.2s;
}
.skill-card:hover {
  border-color: rgba(42, 92, 69, 0.4);
}
.skill-card.wide {
  grid-column: span 2;
}
.skill-card-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-tag {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--ink-mid);
  background: var(--bg-alt);
  border: 1px solid var(--border-lt);
  padding: 4px 10px;
  border-radius: 4px;
  transition: border-color 0.2s, color 0.2s;
}
.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Projects */
.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 24px;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(42, 92, 69, 0.08);
}
.project-card.featured {
  grid-column: span 2;
}
.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}
.project-tag {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid rgba(42, 92, 69, 0.15);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.06em;
}
.project-year {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-ghost);
}
.project-title {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.2;
}
.project-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
  flex: 1;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-lt);
}
.stack-item {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--ink-soft);
}
.stack-item:not(:last-child)::after {
  content: "·";
  margin-left: 6px;
  color: var(--ink-ghost);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--accent);
  margin-top: 16px;
  letter-spacing: 0.04em;
  transition: gap 0.2s;
  width: fit-content;
}
.project-link:hover {
  gap: 10px;
}

/* Timeline */
.timeline {
  margin-top: 60px;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-item {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 40px;
  padding-bottom: 52px;
  position: relative;
}
.timeline-item:last-child {
  padding-bottom: 0;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  transition: border-color 0.2s, background 0.2s;
}
.timeline-item:hover::before {
  border-color: var(--accent);
  background: var(--accent-bg);
}
.timeline-left {
  padding-left: 28px;
  padding-top: 2px;
}
.timeline-date {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-ghost);
  letter-spacing: 0.08em;
  margin-bottom: 5px;
}
.timeline-org {
  font-size: 12px;
  color: var(--ink-mid);
  font-weight: 500;
}
.timeline-role {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.2;
}
.timeline-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.timeline-tag {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--ink-soft);
  background: var(--bg-alt);
  border: 1px solid var(--border-lt);
  padding: 3px 10px;
  border-radius: 4px;
}

/* Contact */
#contact {
  border-bottom: none;
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 40px;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-lt);
  transition: padding-left 0.2s;
}
.contact-link:hover {
  padding-left: 6px;
}
.contact-link:first-child {
  border-top: 1px solid var(--border-lt);
}
.contact-link-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
}
.contact-link:hover .contact-link-icon {
  background: var(--accent-bg);
  border-color: rgba(42, 92, 69, 0.2);
}
.contact-link-icon svg {
  color: var(--ink-soft);
  transition: color 0.2s;
}
.contact-link:hover .contact-link-icon svg {
  color: var(--accent);
}
.contact-link-info {
  flex: 1;
}
.contact-link-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  font-family: var(--mono);
  margin-bottom: 2px;
}
.contact-link-value {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}
.contact-link-arrow {
  color: var(--ink-ghost);
  transition: transform 0.2s, color 0.2s;
}
.contact-link:hover .contact-link-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

/* Form */
.form-section-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 40px;
  margin-bottom: 20px;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-family: var(--mono);
}
.form-input,
.form-textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--ink);
  font-family: var(--sans);
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
}
.form-textarea {
  min-height: 120px;
}
.form-submit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: var(--bg);
  border: none;
  padding: 13px 28px;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--sans);
  font-weight: 500;
  transition: background 0.2s, transform 0.15s;
  align-self: flex-start;
}
.form-submit:hover:not(:disabled) {
  background: var(--accent);
  transform: translateY(-1px);
}
.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Spinner */
.spinner {
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.hidden {
  display: none !important;
}

/* Footer */
footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink-mid);
}
.footer-copy {
  font-size: 12px;
  color: var(--ink-ghost);
  font-family: var(--mono);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 12px;
  color: var(--ink-ghost);
  font-family: var(--mono);
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--ink);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .nav-inner {
    padding: 0 20px;
  }
  .nav-links {
    display: none;
  }
  .hero-inner,
  .about-grid,
  .skills-grid,
  .contact-inner {
    grid-template-columns: 1fr;
  }
  .hero-card {
    display: none;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .project-card.featured {
    grid-column: span 1;
  }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .timeline-left,
  .timeline-right {
    padding-left: 24px;
  }
  .skill-card.wide {
    grid-column: span 1;
  }
  section {
    padding: 72px 0;
  }
}