/* 
  Oğuzhan Gündüz — editorial engineering portfolio
  Visual rule: technical dossier, not a card dashboard.
*/

:root {
  --paper: #f1efe8;
  --ink: #111111;
  --muted: #484642;
  --rule: #1a1a1a;
  --soft-rule: #c8c4ba;
  --accent: #ff4a00;
  --accent-text: #b83400;
  --max: 1500px;
  --pad: clamp(20px, 3vw, 52px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

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

::selection {
  background: var(--accent);
  color: var(--paper);
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
}

.skip-link:focus {
  top: 16px;
}

/* ------------------------- top bar ------------------------- */

.topbar {
  max-width: var(--max);
  margin-inline: auto;
  min-height: 82px;
  padding: 14px var(--pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 36px;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  display: inline-block;
  width: fit-content;
  font-weight: 700;
  font-size: clamp(28px, 2.4vw, 34px);
  line-height: .95;
  letter-spacing: -.03em;
  text-decoration: none;
}

.primary-nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  font-size: 14px;
}

.primary-nav a {
  text-decoration: none;
}

.status-link {
  justify-self: end;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

/* ------------------------- hero ------------------------- */

.hero {
  max-width: var(--max);
  margin-inline: auto;
  padding: 52px var(--pad) 68px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(240px, 19vw, 310px);
  gap: clamp(42px, 5vw, 82px);
  align-items: start;
}

.hero-copy {
  min-width: 0;
}

.hero-kicker {
  max-width: 520px;
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(12px, .95vw, 15px);
  line-height: 1.5;
}

.hero h1 {
  margin: 52px 0 42px;
  max-width: 1120px;
  font-size: clamp(58px, 7.8vw, 126px);
  line-height: .87;
  letter-spacing: -.072em;
  font-weight: 600;
}

.hero-intro {
  max-width: 760px;
  margin: 0;
  font-size: clamp(19px, 1.7vw, 27px);
  line-height: 1.22;
  letter-spacing: -.02em;
}

.portrait {
  margin: 72px 0 0;
  width: 100%;
  align-self: start;
}

.portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(100%) contrast(1.04);
  border-bottom: 7px solid var(--accent);
}

.portrait figcaption {
  margin-top: 9px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  line-height: 1.35;
}

/* ------------------------- fact band ------------------------- */

.fact-band {
  max-width: var(--max);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1.25fr;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.fact-band > div {
  min-height: 118px;
  padding: 20px var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--rule);
}

.fact-band > div:last-child {
  border-right: 0;
}

.fact-band span,
.record-meta,
.project-number,
.edu-year,
.stack-table span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.fact-band strong {
  max-width: 420px;
  font-size: 16px;
  line-height: 1.25;
}

/* ------------------------- generic sections ------------------------- */

.section {
  max-width: var(--max);
  margin-inline: auto;
  padding: 100px var(--pad) 120px;
  border-bottom: 1px solid var(--rule);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 60px;
  align-items: end;
  padding-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(44px, 6vw, 96px);
  line-height: .9;
  letter-spacing: -.06em;
  font-weight: 600;
}

.section-heading p {
  max-width: 520px;
  margin: 0;
  font-size: 16px;
  color: var(--muted);
}

/* ------------------------- work records ------------------------- */

.records {
  border-top: 1px solid var(--rule);
}

.record {
  display: grid;
  grid-template-columns: 70px 220px 1fr;
  gap: 24px;
  padding: 28px 0 34px;
  border-bottom: 1px solid var(--soft-rule);
}

.record:last-child {
  border-bottom: 0;
}

.record-index {
  color: var(--accent-text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
}

.record-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
}

.record-body {
  max-width: 850px;
}

.record-body h3 {
  margin: -7px 0 0;
  font-size: clamp(30px, 3.2vw, 50px);
  line-height: 1;
  letter-spacing: -.045em;
  font-weight: 600;
}

.record-role {
  margin: 9px 0 18px;
  color: var(--accent-text);
  font-weight: 600;
}

.record-body > p:last-child {
  max-width: 780px;
  margin-bottom: 0;
  font-size: 17px;
  color: var(--muted);
}

/* ------------------------- projects ------------------------- */

.project-list {
  border-top: 1px solid var(--rule);
}

.project {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  padding: 34px 0 44px;
  border-bottom: 1px solid var(--soft-rule);
}

.project:last-child {
  border-bottom: 0;
}

.project-number {
  color: var(--accent-text);
}

.project-main {
  max-width: 1120px;
}

.project-title-line {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: baseline;
}

.project-title-line h3 {
  margin: 0;
  font-size: clamp(36px, 4.6vw, 74px);
  line-height: .95;
  letter-spacing: -.055em;
  font-weight: 600;
}

.project-title-line a,
.project-title-line span {
  flex: 0 0 auto;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.project-main > p {
  max-width: 820px;
  margin: 24px 0 32px;
  font-size: 18px;
  color: var(--muted);
}

.project dl {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--soft-rule);
}

.project dl div {
  min-height: 88px;
  padding: 14px 16px 0 0;
  border-right: 1px solid var(--soft-rule);
}

.project dl div + div {
  padding-left: 16px;
}

.project dl div:last-child {
  border-right: 0;
}

.project dt {
  margin-bottom: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
}

.project dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.25;
}

/* ------------------------- education ------------------------- */

.education-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--rule);
}

.education-grid article {
  min-height: 320px;
  padding: 24px 38px 30px 0;
}

.education-grid article + article {
  padding-left: 38px;
  border-left: 1px solid var(--rule);
}

.education-grid h3 {
  margin: 70px 0 4px;
  font-size: clamp(30px, 3.5vw, 54px);
  line-height: 1;
  letter-spacing: -.045em;
  font-weight: 600;
}

.education-grid p {
  margin: 0;
  font-size: 17px;
}

.education-grid .muted {
  margin-top: 20px;
  max-width: 520px;
  color: var(--muted);
  font-size: 15px;
}

/* ------------------------- stack ------------------------- */

.stack-table {
  border-top: 1px solid var(--rule);
}

.stack-table > div {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 30px;
  padding: 22px 0;
  border-bottom: 1px solid var(--soft-rule);
}

.stack-table > div:last-child {
  border-bottom: 0;
}

.stack-table p {
  margin: 0;
  max-width: 850px;
  font-size: 18px;
}

/* ------------------------- contact ------------------------- */

.contact-section {
  max-width: var(--max);
  margin-inline: auto;
  padding: 92px var(--pad) 28px;
}

.contact-section > p {
  margin: 0 0 14px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.contact-mail {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  font-size: clamp(38px, 7.2vw, 116px);
  line-height: .95;
  letter-spacing: -.065em;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.contact-mail:hover {
  color: var(--accent-text);
}

.contact-bottom {
  margin-top: 110px;
  padding-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 24px;
  border-top: 1px solid var(--rule);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

/* ------------------------- responsive ------------------------- */

@media (max-width: 900px) {
  .topbar {
    grid-template-columns: 1fr auto;
    min-height: 78px;
  }

  .primary-nav {
    display: flex;
    grid-column: 1 / -1;
    order: 3;
    justify-content: flex-start;
    gap: 12px 22px;
  }

  .hero {
    grid-template-columns: 1fr 220px;
    gap: 34px;
  }

  .hero h1 {
    margin-top: 46px;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .portrait {
    margin-top: 54px;
  }

  .fact-band {
    grid-template-columns: 1fr;
  }

  .fact-band > div {
    min-height: 98px;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .fact-band > div:last-child {
    border-bottom: 0;
  }

  .record {
    grid-template-columns: 45px 1fr;
  }

  .record-meta {
    grid-column: 2;
  }

  .record-body {
    grid-column: 2;
  }

  .project dl {
    grid-template-columns: 1fr 1fr;
  }

  .project dl div:nth-child(2) {
    border-right: 0;
  }

  .project dl div:nth-child(n + 3) {
    border-top: 1px solid var(--soft-rule);
  }

  .education-grid {
    grid-template-columns: 1fr;
  }

  .education-grid article + article {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--rule);
  }

  .stack-table > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 5px;
}

@media (max-width: 620px) {
  :root {
    --pad: 18px;
  }

  .topbar {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .status-link {
    justify-self: start;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 32px;
  }

  .portrait {
    margin-top: 8px;
    width: min(68vw, 280px);
  }

  .hero h1 {
    margin: 42px 0 48px;
    font-size: clamp(52px, 16vw, 82px);
  }

  .hero-intro {
    font-size: 22px;
  }

  .section {
    padding-top: 72px;
    padding-bottom: 84px;
  }

  .record {
    grid-template-columns: 34px 1fr;
    gap: 14px;
  }

  .project {
    grid-template-columns: 34px 1fr;
    gap: 14px;
  }

  .project-title-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .project dl {
    grid-template-columns: 1fr;
  }

  .project dl div,
  .project dl div + div {
    padding-left: 0;
    border-right: 0;
    border-top: 1px solid var(--soft-rule);
  }

  .project dl div:first-child {
    border-top: 0;
  }

  .contact-bottom {
    grid-template-columns: 1fr;
    margin-top: 70px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}


/* ------------------------- evidence / recognition ------------------------- */

.evidence-list {
  border-top: 1px solid var(--rule);
}

.evidence-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  padding: 24px 0 28px;
  border-bottom: 1px solid var(--soft-rule);
}

.evidence-row:last-child {
  border-bottom: 0;
}

.evidence-row time,
.evidence-row .evidence-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
}

.evidence-row h3 {
  margin: -5px 0 7px;
  font-size: clamp(24px, 2.5vw, 38px);
  line-height: 1;
  letter-spacing: -.035em;
  font-weight: 600;
}

.evidence-row p {
  margin: 0;
  max-width: 820px;
  color: var(--muted);
  font-size: 16px;
}

.metric {
  color: var(--accent-text);
  font-weight: 600;
}

@media (max-width: 700px) {
  .evidence-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}