/* ============================================================
   Theme tokens
   ============================================================ */
:root {
  color-scheme: light;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Fraunces", "Times New Roman", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --header-h: 4.25rem;
  --max: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 20px 60px rgba(30, 22, 12, 0.08);
  --shadow-soft: 0 12px 34px rgba(30, 22, 12, 0.05);
}

:root {
  --bg: #f2efe8;
  --bg-alt: #ece7dd;
  --surface: #fbfaf6;
  --text: #0e0e0c;
  --text-muted: #6b665c;
  --border: rgba(14, 14, 12, 0.14);
  --border-soft: rgba(14, 14, 12, 0.08);
  --accent: #b04629;
  --accent-hot: #c6522f;
  --accent-2: #8a3a20;
  --available: #4f7a3f;
  --hero-gradient:
    radial-gradient(900px 460px at 96% -10%, rgba(176, 70, 41, 0.05), transparent 60%),
    radial-gradient(720px 400px at -6% 108%, rgba(138, 131, 117, 0.06), transparent 58%),
    linear-gradient(168deg, #f7f4ee 0%, #f2efe8 42%, #ece7dd 100%);
  --portrait-ring: rgba(176, 70, 41, 0.26);
  --btn-gradient: linear-gradient(135deg, #8a3a20 0%, #b04629 55%, #c6522f 100%);
}

[data-theme="dark"] {
  color-scheme: dark only;
  --bg: #17140f;
  --bg-alt: #201c15;
  --surface: #26211a;
  --text: #f2efe8;
  --text-muted: #a8a191;
  --border: rgba(242, 239, 232, 0.16);
  --border-soft: rgba(242, 239, 232, 0.08);
  --accent: #e07a50;
  --accent-hot: #ec8a5e;
  --accent-2: #d96a44;
  --available: #86b46f;
  --hero-gradient:
    radial-gradient(880px 440px at 94% -8%, rgba(224, 122, 80, 0.12), transparent 58%),
    radial-gradient(660px 380px at 0% 106%, rgba(184, 174, 156, 0.06), transparent 56%),
    linear-gradient(170deg, #201c15 0%, #17140f 56%, #120f0b 100%);
  --portrait-ring: rgba(224, 122, 80, 0.34);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.36);
  --btn-gradient: linear-gradient(135deg, #b04629 0%, #d96a44 50%, #e07a50 100%);
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
  transition: background-color 0.35s var(--ease);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}

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

a {
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.75rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--btn-gradient);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  left: 0.75rem;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
}

.logo {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.01em;
  padding-right: 0.55rem;
}

.logo::after {
  content: "";
  position: absolute;
  top: 0.3em;
  right: 0;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--accent);
}

.nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.35rem;
  justify-content: flex-end;
}

.nav a {
  position: relative;
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  padding-bottom: 0.15rem;
  transition: color 0.2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.theme-toggle {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle__icon {
  grid-area: 1 / 1;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(-30deg) scale(0.85);
}

[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(30deg) scale(0.85);
}

[data-theme="dark"] .theme-toggle__icon--moon,
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .site-header__inner {
    flex-wrap: wrap;
    height: auto;
  }
  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  .nav__list {
    justify-content: center;
    gap: 0.35rem 1rem;
  }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  background: var(--hero-gradient);
  border-bottom: 1px solid var(--border-soft);
  overflow: hidden;
}

.hero__grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5.5rem) 1.5rem clamp(2rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1fr minmax(240px, 360px);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--available);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--available) 22%, transparent);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--available) 22%, transparent);
  }
  50% {
    box-shadow: 0 0 0 7px color-mix(in srgb, var(--available) 8%, transparent);
  }
}

.hero__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3.2rem, 11vw, 8rem);
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin: 0 0 1.4rem;
  color: var(--text);
}

.hero__name span {
  display: block;
}

.hero__lead {
  margin: 0 0 1rem;
  max-width: 46ch;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.hero__loc {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.hero__portrait {
  min-width: 0;
}

.portrait {
  position: relative;
  margin: 0;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--portrait-ring);
  background: var(--surface);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.portrait__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}

.portrait__fallback {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: none;
  place-items: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: #fff;
  background: var(--btn-gradient);
}

.portrait--error .portrait__fallback {
  display: grid;
  z-index: 2;
}

.portrait--error .portrait__img {
  display: none;
}

.hero__foot {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__ver {
  color: var(--accent);
}

.hero__scroll {
  margin-left: auto;
  text-decoration: none;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s ease, gap 0.2s var(--ease);
}

.hero__scroll:hover {
  color: var(--accent);
  gap: 0.6rem;
}

@media (max-width: 780px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__portrait {
    order: -1;
    max-width: 260px;
  }
}

/* ============================================================
   Section scaffold
   ============================================================ */
.sect {
  padding: clamp(3.5rem, 8vw, 6rem) 1.5rem;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg);
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.sect--alt {
  background: var(--bg-alt);
}

.sect__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.sect__head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.sect__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.sect__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.65rem;
  color: var(--text);
}

.sect__sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sect__placeholder {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  padding: 1.5rem 0;
}

/* ============================================================
   About
   ============================================================ */
.about {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.about__statement {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--text);
}

.about__body p {
  margin: 0 0 1.1rem;
  color: var(--text-muted);
}

.link-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1.5px solid var(--accent);
  padding-bottom: 0.2rem;
  transition: color 0.2s ease, gap 0.2s var(--ease);
}

.link-cta:hover {
  color: var(--accent);
  gap: 0.75rem;
}

.arrow {
  color: var(--accent);
  transition: transform 0.2s var(--ease);
}

.link-cta:hover .arrow,
.work__link:hover .arrow,
.contact__links a:hover .arrow {
  transform: translate(2px, -2px);
}

@media (max-width: 780px) {
  .about {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Education
   ============================================================ */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.edu {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.edu__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.edu__school {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  line-height: 1.15;
  margin: 0.7rem 0 0.4rem;
  color: var(--text);
}

.edu__degree {
  margin: 0 0 1.35rem;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.edu__stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-soft);
}

.edu__stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.edu__stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.edu__stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
}

.edu__note {
  margin: 1.1rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================================
   Skills / tech grid
   ============================================================ */
.tech {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.tech li {
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s var(--ease);
}

.tech li:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

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

.job {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem 2rem;
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  border-top: 1px solid var(--border-soft);
}

.job:first-child {
  border-top: none;
  padding-top: 0.5rem;
}

.job__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  line-height: 1.15;
  margin: 0 0 0.35rem;
  color: var(--text);
}

.job__org {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
}

.job__loc {
  color: var(--text-muted);
  font-weight: 400;
}

.job__desc {
  margin: 0;
  color: var(--text-muted);
  max-width: 68ch;
}

.job__date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  text-align: right;
  padding-top: 0.4rem;
}

@media (max-width: 640px) {
  .job {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .job__date {
    order: -1;
    text-align: left;
    padding-top: 0;
  }
}

/* ============================================================
   Selected work
   ============================================================ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.work {
  display: flex;
  flex-direction: column;
  padding: 1.6rem 1.7rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform 0.25s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease;
}

.work:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: var(--shadow-soft);
}

.work__top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.7rem;
}

.work__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.15;
  margin: 0;
  color: var(--text);
}

.work__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
}

.work__desc {
  margin: 0 0 1.1rem;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.work__tags {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.work__tags li {
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--accent) 62%, var(--text));
}

.work__foot {
  margin-top: auto;
}

.work__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1.5px solid var(--accent);
  padding-bottom: 0.15rem;
  transition: color 0.2s ease, gap 0.2s var(--ease);
}

.work__link:hover {
  color: var(--accent);
  gap: 0.6rem;
}

.work__link--none {
  color: var(--text-muted);
  border-bottom-color: var(--border);
  cursor: default;
}

/* ============================================================
   Certifications (placeholder-aware)
   ============================================================ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.cert {
  padding: 1.5rem 1.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.cert__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0 0 0.35rem;
}

.cert__issuer {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.cert__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--accent);
}

/* ============================================================
   Contact
   ============================================================ */
.sect--contact {
  border-bottom: none;
}

.contact__lead {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  max-width: 24ch;
  color: var(--text);
}

.contact__loc {
  margin: 0 0 2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.contact__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.5rem 2rem;
  max-width: 720px;
}

.contact__links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-soft);
  transition: color 0.2s ease, gap 0.2s var(--ease);
}

.contact__links a:hover {
  color: var(--accent);
  gap: 0.65rem;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  padding: 1.75rem 1.5rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border-soft);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
}