:where(:root) {
  --blue: #2563eb;
  --blue-deep: #1e40af;
  --ink: #0f172a;
  --paper: #f8fafc;
  --sun: #fbbf24;
  --coral: #fb7185;
  --mint: #34d399;
  --line: #cbd5e1;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
}

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

:where(html) {
  scroll-behavior: smooth;
}

:where(body) {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

:is(h1, h2, h3) {
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 0.6em;
}

:where(h1) { font-size: clamp(2.4rem, 6vw, 4.5rem); }
:where(h2) { font-size: clamp(1.7rem, 3.5vw, 2.6rem); }
:where(h3) { font-size: 1.3rem; }

:is(code, kbd) {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--ink);
  color: var(--sun);
  padding: 0.15em 0.5em;
  border-radius: 999px;
}

:where(a) {
  color: var(--blue-deep);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

:is(a, button, summary, input, textarea):focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 3px;
}

body > a:first-child {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 50;
}
body > a:first-child:focus { top: 1rem; }

/* Üst şerit */
header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 5vw, 4rem);
  border-bottom: 4px solid var(--ink);
  background: #fff;
}

header > a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 800;
  font-size: 1.2rem;
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.2rem;
}

header nav a {
  font-family: var(--mono);
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--ink);
  padding: 0.3rem 0;
  border-bottom: 3px solid transparent;
}

header nav :is(a:hover, a[aria-current]) {
  border-bottom-color: var(--blue);
}

/* Ana alan */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 5vw, 3rem) 4rem;
  position: relative;
}

main > :is(article, section, aside) {
  position: relative;
  margin-block: 3rem;
}

main > :is(article, section, aside) > div > :is(h2, h3) {
  margin-top: 1.6em;
}

/* Kahraman alanı: büyük geometrik şekiller */
main > section:first-child {
  min-height: 60vh;
  padding: clamp(2rem, 6vw, 5rem) clamp(1.2rem, 5vw, 4rem);
  background: #fff;
  border: 4px solid var(--ink);
  overflow: hidden;
  isolation: isolate;
}

main > section:first-child::before {
  content: "";
  position: absolute;
  width: 42vw;
  height: 42vw;
  max-width: 460px;
  max-height: 460px;
  border-radius: 50%;
  background: var(--blue);
  right: -12%;
  top: -30%;
  z-index: -1;
}

main > section:first-child::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  background: var(--coral);
  left: -60px;
  bottom: -70px;
  transform: rotate(18deg);
  z-index: -1;
}

main > section:first-child > svg {
  position: absolute;
  right: 4%;
  bottom: -4%;
  width: clamp(120px, 22vw, 220px);
  height: auto;
  z-index: -1;
  opacity: 0.95;
}

main > section:first-child > h1 {
  max-width: 14ch;
}

/* Kahraman görseli: sağda, eğik kesilmiş geometrik blok */
main > section:first-child > figure {
  position: absolute;
  inset: 0 0 0 auto;
  width: 46%;
  margin: 0;
  z-index: -1;
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  border-left: 4px solid var(--ink);
}

main > section:first-child > figure > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

main > section:first-child > :is(h1, p, a) {
  max-width: min(52%, 30ch);
}

/* İç sayfa bandı: H1 üstünde tam genişlik, kalın çerçeve + ofset gölge */
main > article > figure {
  margin: 0 0 2rem;
  border: 4px solid var(--ink);
  box-shadow: 12px 12px 0 var(--sun);
  background: #fff;
  overflow: hidden;
}

main > article > figure > img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

:where(main) img {
  max-width: 100%;
  height: auto;
}

main > section:first-child > p:not(:first-of-type) {
  font-size: 1.25rem;
  max-width: 48ch;
}

main > section:first-child > a {
  display: inline-block;
  margin-top: 1rem;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  padding: 0.9rem 1.8rem;
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--sun);
  transition: transform 0.15s, box-shadow 0.15s;
}

main > section:first-child > a:hover {
  transform: translate(-2px, -2px);
  box-shadow: 12px 12px 0 var(--sun);
}

/* İçerik makalesi */
main > article {
  max-width: 72ch;
}

main > article :is(ul, ol) {
  padding-left: 1.4rem;
}

main > article li::marker {
  color: var(--blue);
  font-weight: 800;
}

main > article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

main > article :is(th, td) {
  border: 2px solid var(--ink);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

main > article th {
  background: var(--sun);
}

/* Keşfet kartları */
main > section[aria-labelledby="kesfet-baslik"] ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

main > section[aria-labelledby="kesfet-baslik"] li > a {
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-areas: "ikon baslik" "ikon metin";
  column-gap: 1rem;
  padding: 1.5rem;
  border: 4px solid var(--ink);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  box-shadow: 10px 10px 0 var(--blue);
  transition: box-shadow 0.15s, transform 0.15s;
}

main > section[aria-labelledby="kesfet-baslik"] li:nth-child(2) > a {
  box-shadow: 10px 10px 0 var(--mint);
}

main > section[aria-labelledby="kesfet-baslik"] li > a:hover {
  transform: translate(-3px, -3px);
  box-shadow: 14px 14px 0 var(--sun);
}

main > section[aria-labelledby="kesfet-baslik"] li > a > svg { grid-area: ikon; }
main > section[aria-labelledby="kesfet-baslik"] li > a > strong { grid-area: baslik; font-size: 1.35rem; }
main > section[aria-labelledby="kesfet-baslik"] li > a > span { grid-area: metin; color: #334155; }

/* Ana sayfa SSS listesi */
main > section[aria-labelledby="sss-baslik"] dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  margin: 0 0 1rem;
}

main > section[aria-labelledby="sss-baslik"] dt {
  font-weight: 800;
  font-size: 1.1rem;
  padding: 1rem 1.2rem 0;
  background: #fff;
  border: 3px solid var(--ink);
  border-bottom: 0;
}

main > section[aria-labelledby="sss-baslik"] dd {
  margin: 0 0 0;
  padding: 0.4rem 1.2rem 1.2rem;
  background: #fff;
  border: 3px solid var(--ink);
  border-top: 0;
  color: #334155;
}

/* SSS sayfası details */
main > section[aria-label="Soru listesi"] details {
  border: 3px solid var(--ink);
  background: #fff;
  margin-bottom: 1rem;
}

main > section[aria-label="Soru listesi"] summary {
  cursor: pointer;
  padding: 1rem 1.2rem;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

main > section[aria-label="Soru listesi"] summary::-webkit-details-marker { display: none; }

main > section[aria-label="Soru listesi"] summary::after {
  content: "+";
  font-family: var(--mono);
  font-weight: 600;
  color: var(--blue);
  flex-shrink: 0;
}

main > section[aria-label="Soru listesi"] details[open] summary::after { content: "−"; }

main > section[aria-label="Soru listesi"] details > div {
  padding: 0 1.2rem 1.2rem;
  color: #334155;
}

/* İletişim */
main > section[aria-labelledby="form-baslik"] form {
  max-width: 560px;
}

main > section[aria-labelledby="form-baslik"] form p { margin: 0 0 1rem; }

main > section[aria-labelledby="form-baslik"] label {
  display: block;
  font-family: var(--mono);
  font-size: 0.85rem;
  margin-bottom: 0.3rem;
}

main > section[aria-labelledby="form-baslik"] :is(input, textarea) {
  width: 100%;
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 3px solid var(--ink);
  background: #fff;
}

main > section[aria-labelledby="form-baslik"] button {
  font: inherit;
  font-weight: 700;
  background: var(--blue);
  color: #fff;
  border: 3px solid var(--ink);
  padding: 0.8rem 2rem;
  box-shadow: 6px 6px 0 var(--ink);
  cursor: pointer;
}

main > section[aria-labelledby="form-baslik"] p[data-state] {
  padding: 0.8rem 1rem;
  border: 3px solid var(--ink);
  font-weight: 600;
}

main > section[aria-labelledby="form-baslik"] p[data-state="ok"] { background: #d1fae5; }
main > section[aria-labelledby="form-baslik"] p[data-state="error"] { background: #ffe4e6; }

main > aside ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

main > aside li {
  border: 3px solid var(--ink);
  padding: 0.6rem 1rem;
  background: #fff;
}

/* Alt bilgi */
footer {
  background: var(--ink);
  color: #e2e8f0;
  padding: 3rem clamp(1rem, 5vw, 4rem);
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 24px solid var(--blue);
  right: -80px;
  top: -80px;
}

footer :is(a) { color: var(--sun); }
footer address { font-style: normal; font-family: var(--mono); font-size: 0.9rem; }
footer nav ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 1.5rem; flex-wrap: wrap; }
footer small { color: #94a3b8; }

@media (max-width: 640px) {
  header { flex-direction: column; align-items: flex-start; }
  main > section:first-child::before { width: 60vw; height: 60vw; right: -30%; top: -20%; }
  main > section:first-child > svg { display: none; }
  main > section:first-child > figure {
    position: static;
    width: calc(100% + 2 * clamp(1.2rem, 5vw, 4rem));
    margin: calc(-1 * clamp(2rem, 6vw, 5rem)) calc(-1 * clamp(1.2rem, 5vw, 4rem)) 1.5rem;
    clip-path: none;
    border-left: 0;
    border-bottom: 4px solid var(--ink);
    aspect-ratio: 16 / 9;
  }
  main > section:first-child > :is(h1, p, a) { max-width: none; }
  main > article > figure { box-shadow: 6px 6px 0 var(--sun); }
}

@media (prefers-reduced-motion: reduce) {
  :where(html) { scroll-behavior: auto; }
  :is(a) { transition: none !important; }
}

/* ===== Günce (blog) ===== */

/* Sayfa yolu */
main > nav[aria-label="Sayfa yolu"] {
  margin-block: 0 1.5rem;
}

main > nav[aria-label="Sayfa yolu"] ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}

main > nav[aria-label="Sayfa yolu"] li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--blue);
}

/* Liste sayfası */
main > section[aria-labelledby="gunce-liste-baslik"] > header {
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 4px solid var(--ink);
  background: #fff;
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
}

main > section[aria-labelledby="gunce-liste-baslik"] > header::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--mint);
  right: -70px;
  bottom: -110px;
  z-index: 0;
}

main > section[aria-labelledby="gunce-liste-baslik"] > header > * {
  position: relative;
  z-index: 1;
}

main > section[aria-labelledby="gunce-liste-baslik"] h1 small {
  font-family: var(--mono);
  font-size: 0.35em;
  font-weight: 400;
  vertical-align: middle;
  color: var(--blue-deep);
}

main > section[aria-labelledby="gunce-liste-baslik"] > ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

main > section[aria-labelledby="gunce-liste-baslik"] article {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.4rem;
  border: 4px solid var(--ink);
  background: #fff;
  box-shadow: 8px 8px 0 var(--blue);
  transition: transform 0.15s, box-shadow 0.15s;
}

main > section[aria-labelledby="gunce-liste-baslik"] li:nth-child(3n + 2) article { box-shadow: 8px 8px 0 var(--sun); }
main > section[aria-labelledby="gunce-liste-baslik"] li:nth-child(3n) article { box-shadow: 8px 8px 0 var(--coral); }

main > section[aria-labelledby="gunce-liste-baslik"] article:hover {
  transform: translate(-3px, -3px);
}

main > section[aria-labelledby="gunce-liste-baslik"] article > a > img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 3px solid var(--ink);
  margin: -0.2rem 0 0.6rem;
}

main > section[aria-labelledby="gunce-liste-baslik"] article h2 {
  font-size: 1.35rem;
  margin: 0;
}

main > section[aria-labelledby="gunce-liste-baslik"] article h2 a {
  color: var(--ink);
  text-decoration: none;
}

main > section[aria-labelledby="gunce-liste-baslik"] article h2 a:hover { color: var(--blue-deep); }

main > section[aria-labelledby="gunce-liste-baslik"] article time,
main > article > header time,
main > aside[aria-labelledby="ilgili-baslik"] time,
main > aside[aria-labelledby="secki-baslik"] time,
main > section[aria-labelledby="gunce-baslik"] time {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: #475569;
}

main > section[aria-labelledby="gunce-liste-baslik"] article p {
  margin: 0.2rem 0 0;
  color: #334155;
}

/* Sayfalama */
main > nav[aria-label="Sayfalama"] {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-block: 2rem;
}

main > nav[aria-label="Sayfalama"] a {
  font-weight: 700;
  text-decoration: none;
  border: 3px solid var(--ink);
  background: #fff;
  padding: 0.6rem 1.2rem;
  box-shadow: 5px 5px 0 var(--sun);
  color: var(--ink);
  justify-self: start;
}

main > nav[aria-label="Sayfalama"] a[rel="next"] { justify-self: end; }
main > nav[aria-label="Sayfalama"] > span:nth-child(2) { justify-self: center; }

/* Yazı sayfası */
main > article > header {
  margin-bottom: 1.5rem;
}

main > article > header > p {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* Yazı gezinme */
main > nav[aria-label="Yazı gezinme"] {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 72ch;
}

main > nav[aria-label="Yazı gezinme"] a {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 1.2rem;
  border: 3px solid var(--ink);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 6px 6px 0 var(--mint);
}

main > nav[aria-label="Yazı gezinme"] a[rel="next"] { text-align: right; box-shadow: -6px 6px 0 var(--sun); }

main > nav[aria-label="Yazı gezinme"] small {
  font-family: var(--mono);
  font-weight: 400;
  color: var(--blue-deep);
}

/* İlgili yazılar */
main > aside[aria-labelledby="ilgili-baslik"] ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.2rem;
}

main > aside[aria-labelledby="ilgili-baslik"] li > a {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  height: 100%;
  padding: 1.1rem;
  border: 3px solid var(--ink);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  box-shadow: 6px 6px 0 var(--blue);
}

main > aside[aria-labelledby="ilgili-baslik"] li > a:hover { box-shadow: 6px 6px 0 var(--sun); }

main > aside[aria-labelledby="ilgili-baslik"] li > a > img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 2px solid var(--ink);
}

main > aside[aria-labelledby="ilgili-baslik"] li > a > span {
  font-size: 0.92rem;
  color: #334155;
}

/* Sayfa altı seçkisi: Günceden notlar */
main > aside[aria-labelledby="secki-baslik"] {
  max-width: 72ch;
  padding: 1.5rem;
  border: 4px dashed var(--ink);
  background: #fff;
}

main > aside[aria-labelledby="secki-baslik"] h2 { font-size: 1.4rem; }

main > aside[aria-labelledby="secki-baslik"] ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: 0.6rem;
}

main > aside[aria-labelledby="secki-baslik"] li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--line);
}

main > aside[aria-labelledby="secki-baslik"] li a { font-weight: 700; }

/* Ana sayfa: Günceden son yazılar */
main > section[aria-labelledby="gunce-baslik"] ol {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}

main > section[aria-labelledby="gunce-baslik"] li {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "no baslik" "no tarih" "no ozet";
  column-gap: 1.2rem;
  align-items: start;
  padding: 1.2rem 1.4rem;
  border: 4px solid var(--ink);
  background: #fff;
  border-left-width: 14px;
}

main > section[aria-labelledby="gunce-baslik"] li:nth-child(1) { border-left-color: var(--blue); }
main > section[aria-labelledby="gunce-baslik"] li:nth-child(2) { border-left-color: var(--sun); }
main > section[aria-labelledby="gunce-baslik"] li:nth-child(3) { border-left-color: var(--coral); }

main > section[aria-labelledby="gunce-baslik"] li > code { grid-area: no; font-size: 1.4rem; align-self: center; }
main > section[aria-labelledby="gunce-baslik"] li > h3 { grid-area: baslik; margin: 0; }
main > section[aria-labelledby="gunce-baslik"] li > h3 a { color: var(--ink); text-decoration: none; }
main > section[aria-labelledby="gunce-baslik"] li > h3 a:hover { color: var(--blue-deep); }
main > section[aria-labelledby="gunce-baslik"] li > time { grid-area: tarih; }
main > section[aria-labelledby="gunce-baslik"] li > p { grid-area: ozet; margin: 0.3rem 0 0; color: #334155; }

@media (max-width: 640px) {
  main > nav[aria-label="Yazı gezinme"] { grid-template-columns: 1fr; }
  main > nav[aria-label="Yazı gezinme"] a[rel="next"] { text-align: left; box-shadow: 6px 6px 0 var(--sun); }
  main > nav[aria-label="Sayfalama"] { grid-template-columns: 1fr; justify-items: center; }
  main > nav[aria-label="Sayfalama"] a { justify-self: center; }
  main > section[aria-labelledby="gunce-baslik"] li { grid-template-columns: 1fr; grid-template-areas: "no" "baslik" "tarih" "ozet"; }
}