/* SSPKONGRE 2026 — site teması
   Motif: kongre görselindeki örgü eller → üç iplik (mavi, kum, turuncu).
   Yazı: Archivo değişken (genişlik + kalınlık eksenleri), sunucudan. */

@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url("../fonts/archivo-latin-ext-standard-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url("../fonts/archivo-latin-standard-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --murekkep: #16294A;
  --murekkep-koyu: #0E1C35;
  --iplik-mavi: #5B8AD0;
  --iplik-krem: #E9D9C2;
  --iplik-turuncu: #E35B2E;
  --vurgu: #C9461B;          /* buton: beyaz yazıyla 4.8:1 */
  --vurgu-koyu: #A93812;
  --kagit: #FFFFFF;
  --zemin: #F2F4F8;
  --yazi: #1B2333;
  --yazi-2: #4A5468;
  --cizgi: #D9DEE6;
  --acik-mavi: #B9D0F0;

  --olcu: 17px;
  --sutun: 68ch;
  --genis: 72rem;
  --kenar: clamp(1rem, 4vw, 2.5rem);
  --yaricap: 6px;
}

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

html { font-size: var(--olcu); -webkit-text-size-adjust: 100%; scroll-padding-top: 6rem; }
body {
  margin: 0;
  background: var(--kagit);
  color: var(--yazi);
  font-family: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-stretch: 100%;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: var(--vurgu-koyu); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--iplik-turuncu); outline-offset: 3px; border-radius: 2px; }

.atla {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--murekkep); color: #fff; padding: .6rem 1rem; border-radius: var(--yaricap);
}
.atla:focus { top: 1rem; }

/* ---------- duyuru ---------- */
.duyuru { background: var(--iplik-krem); color: var(--murekkep); }
.duyuru p { margin: 0 auto; max-width: var(--genis); padding: .55rem var(--kenar); font-size: .9rem; font-weight: 500; }
.duyuru a { color: inherit; }

/* ---------- üst ---------- */
.ust {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--cizgi);
  backdrop-filter: saturate(1.4) blur(6px);
}
.ust-ic {
  max-width: var(--genis); margin: 0 auto;
  padding: .6rem var(--kenar) .35rem;
  display: flex; align-items: center; gap: 1rem 1.5rem; flex-wrap: wrap;
}
.marka {
  display: inline-flex; align-items: baseline; gap: .35rem;
  text-decoration: none; color: var(--murekkep);
  margin-right: auto;
}
.marka-ad { font-weight: 850; font-stretch: 78%; font-size: 1.55rem; letter-spacing: .01em; line-height: 1; }
.marka-yil { font-weight: 600; font-stretch: 100%; font-size: .85rem; color: var(--vurgu); }

.menu-ac {
  display: none;
  font: inherit; font-weight: 600; font-size: .95rem;
  background: none; border: 1px solid var(--cizgi); color: var(--murekkep);
  padding: .45rem .85rem; border-radius: var(--yaricap); cursor: pointer;
}
.ana-menu ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .15rem .2rem; }
.ana-menu a {
  display: block; padding: .35rem .55rem; border-radius: 4px;
  color: var(--yazi); text-decoration: none; font-size: .92rem; font-weight: 500;
}
.ana-menu a:hover { background: var(--zemin); }
.ana-menu a[aria-current="page"] { color: var(--murekkep); box-shadow: inset 0 -2px 0 var(--iplik-turuncu); border-radius: 0; }

.buton {
  display: inline-block;
  background: var(--vurgu); color: #fff;
  font-weight: 650; text-decoration: none; line-height: 1.2;
  padding: .7rem 1.15rem; border-radius: var(--yaricap);
  border: 2px solid var(--vurgu);
}
.buton:hover { background: var(--vurgu-koyu); border-color: var(--vurgu-koyu); text-decoration: none; }
.buton-ust { padding: .55rem .95rem; font-size: .95rem; }
.buton-buyuk { font-size: 1.1rem; padding: .9rem 1.5rem; }
.buton-ikincil { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.buton-ikincil:hover { background: rgba(255,255,255,.1); border-color: #fff; }

/* Menü her zaman ikinci satırda: 10 bağlantı tek satıra sığmıyor */
.ana-menu { order: 3; flex-basis: 100%; margin: 0 -.55rem; }
.uzun { display: inline; }
.kisa { display: none; }
@media (max-width: 760px) {
  .menu-ac { display: inline-block; }
  .ust-ic { gap: .6rem; }
  .ust-ic { padding-bottom: .6rem; gap: .5rem; }
  .marka-ad { font-size: 1.3rem; }
  .marka-yil { font-size: .75rem; }
  .buton-ust { order: 1; padding: .45rem .75rem; font-size: .9rem; }
  .menu-ac { order: 2; }
  .uzun { display: none; }
  .kisa { display: inline; }
  .ana-menu { margin: 0; }
  .ana-menu { display: none; }
  .js-menu-acik .ana-menu { display: block; }
  .ana-menu ul { flex-direction: column; padding: .25rem 0 .5rem; }
  .ana-menu a { padding: .65rem .25rem; font-size: 1.05rem; border-bottom: 1px solid var(--zemin); }
  .ana-menu a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--iplik-turuncu); padding-left: .75rem; }
  .no-js .ana-menu { display: block; }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: var(--murekkep);
  color: #fff;
  overflow: hidden;
}
.hero-ic {
  max-width: var(--genis); margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--kenar) 7.5rem;
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 2.5rem; align-items: center;
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 550; font-stretch: 110%;
  line-height: 1.35; color: var(--acik-mavi);
  max-width: 34ch;
}
.hero-tema {
  margin: 0 0 1.75rem;
  font-size: clamp(3.1rem, 8.2vw, 7.4rem);
  font-weight: 850; font-stretch: 66%;
  line-height: .9; letter-spacing: -.005em;
  text-wrap: balance;
}
.hero-bilgi { border-left: 4px solid var(--iplik-turuncu); padding-left: 1rem; margin-bottom: 2rem; }
.hero-bilgi p { margin: 0; }
.hero-tarih { font-size: clamp(1.35rem, 2.4vw, 1.85rem); font-weight: 700; font-stretch: 92%; line-height: 1.2; }
.hero-yer { font-size: 1.05rem; color: #DCE4F1; margin-top: .2rem !important; }
.hero-eylem { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero-kalan { margin: 1.25rem 0 0; font-size: .95rem; color: var(--acik-mavi); }

.hero-foto { margin: 0; position: relative; border-radius: var(--yaricap); overflow: hidden; background: var(--iplik-mavi); }
.hero-foto img {
  display: block; width: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; object-position: 40% 50%;
  filter: grayscale(1) contrast(1.08) brightness(1.02);
  mix-blend-mode: multiply;
}

@media (max-width: 860px) {
  .hero-ic { grid-template-columns: 1fr; }
  .hero-foto { max-height: 14rem; }
  .hero-foto img { aspect-ratio: 16 / 8; }
  .hero-ic { gap: 2rem; }
}

/* ---------- örgü ---------- */
.orgu { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 120px; display: block; }
.orgu-ince { height: 44px; }
.orgu path { fill: none; stroke-linecap: round; }
.orgu-golge { stroke: var(--murekkep); stroke-width: 15px; }
.orgu-ince .orgu-golge { stroke-width: 9px; }
.orgu-iplik { stroke-width: 9px; }
.orgu-ince .orgu-iplik { stroke-width: 5px; }
.orgu-0 { stroke: var(--iplik-mavi); }
.orgu-1 { stroke: var(--iplik-krem); }
.orgu-2 { stroke: var(--iplik-turuncu); }

.hero .orgu-iplik { stroke-dasharray: 1; stroke-dashoffset: 1; animation: ilmek 2.4s cubic-bezier(.6,.1,.25,1) forwards; }
.hero .orgu-1 { animation-delay: .25s; }
.hero .orgu-2 { animation-delay: .5s; }
@keyframes ilmek { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .hero .orgu-iplik { animation: none; stroke-dashoffset: 0; }
}

/* ---------- iç sayfa başı ---------- */
.sayfa-bas { position: relative; background: var(--murekkep); color: #fff; }
.sayfa-bas-ic { max-width: var(--genis); margin: 0 auto; padding: clamp(2rem, 5vw, 3.25rem) var(--kenar) 4.25rem; }
.sayfa-bas h1 {
  margin: 0; font-size: clamp(2.3rem, 5.4vw, 4rem);
  font-weight: 850; font-stretch: 68%; line-height: .98; letter-spacing: -.005em;
}
.sayfa-ozet { margin: .85rem 0 0; max-width: 60ch; color: #DCE4F1; font-size: 1.08rem; }

/* ---------- içerik ---------- */
.icerik { padding: clamp(2rem, 5vw, 3.5rem) 0 4.5rem; }
.yazi { max-width: var(--genis); margin: 0 auto; padding: 0 var(--kenar); }
.yazi > p, .yazi > ul, .yazi > ol, .yazi > h2, .yazi > h3, .yazi > h4,
.yazi > .not-kutusu, .yazi > details, .yazi > hr, .yazi > .buton-satir,
.blok-vurgu, .blok-not { max-width: var(--sutun); }
.sayfa-ana .yazi > p:first-child { font-size: 1.25rem; line-height: 1.5; color: var(--yazi); max-width: 58ch; }

.yazi h2 {
  margin: 2.75rem 0 .9rem;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800; font-stretch: 78%; line-height: 1.1; color: var(--murekkep);
}
.yazi > h2:first-child { margin-top: 0; }
.yazi h3 { margin: 2rem 0 .5rem; font-size: 1.22rem; font-weight: 700; font-stretch: 95%; line-height: 1.25; color: var(--murekkep); }
.yazi h4 { margin: 1.5rem 0 .4rem; font-size: 1.05rem; font-weight: 700; }
.yazi p { margin: 0 0 1rem; }
.yazi ul, .yazi ol { margin: 0 0 1.1rem; padding-left: 1.3rem; }
.yazi li { margin-bottom: .35rem; padding-left: .15rem; }
.yazi ul li::marker { color: var(--iplik-turuncu); }
.yazi ol li::marker { color: var(--vurgu-koyu); font-weight: 700; }
.yazi hr { border: 0; border-top: 1px solid var(--cizgi); margin: 2.5rem 0; }
.yazi img { display: block; border-radius: var(--yaricap); margin: 1.25rem 0 1.75rem; }
.yazi > p > img:only-child { margin: .5rem 0 .25rem; }
.yazi strong { font-weight: 700; color: var(--murekkep); }

.not-kutusu {
  background: var(--zemin);
  border-left: 4px solid var(--iplik-turuncu);
  padding: .9rem 1.15rem; margin: 1.25rem 0 1.5rem;
  border-radius: 0 var(--yaricap) var(--yaricap) 0;
}
.not-kutusu p:last-child, .not-kutusu ul:last-child { margin-bottom: 0; }

.buton-satir { margin: 1.5rem 0 1.75rem !important; }

/* kartlar: iplik renkleri sırayla üst kenarda */
.kartlar {
  display: grid; gap: 1.1rem; margin: 1.25rem 0 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17.5rem), 1fr));
}
.kart {
  background: var(--zemin);
  border-top: 5px solid var(--iplik-mavi);
  border-radius: 0 0 var(--yaricap) var(--yaricap);
  padding: 1.15rem 1.25rem 1.2rem;
}
.kart:nth-child(3n+2) { border-top-color: var(--iplik-turuncu); }
.kart:nth-child(3n+3) { border-top-color: #CDB797; }
.yazi .kart h3 { margin: 0 0 .55rem; font-size: 1.18rem; }
.kart p:last-child, .kart ul:last-child { margin-bottom: 0; }
.kart ul { padding-left: 1.1rem; }

.blok-vurgu ul { list-style: none; padding: 0; margin: 1rem 0 1.5rem; columns: 2 18rem; column-gap: 2rem; }
.blok-vurgu li { break-inside: avoid; padding: .55rem 0 .55rem 1.1rem; border-bottom: 1px solid var(--cizgi); position: relative; margin: 0; }
.blok-vurgu li::before {
  content: ""; position: absolute; left: 0; top: 1.05rem; width: .5rem; height: .5rem; border-radius: 50%;
  background: var(--iplik-turuncu);
}

/* galeri: bildiri kitabı kapakları vb. */
.blok-galeri ul {
  list-style: none; padding: 0; margin: 1.25rem 0 2rem;
  display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
}
.blok-galeri li { margin: 0; padding: 0; }
.gorsel-link { display: block; text-decoration: none; color: var(--yazi); font-size: .88rem; line-height: 1.35; }
.gorsel-link img { margin: 0 0 .55rem !important; width: 100%; aspect-ratio: 3 / 4.3; object-fit: cover; border: 1px solid var(--cizgi); }
.gorsel-link:hover span { text-decoration: underline; }
.gorsel-link:hover img { outline: 3px solid var(--iplik-turuncu); outline-offset: 2px; }

/* tablolar */
.tablo-sar { overflow-x: auto; margin: 1rem 0 1.75rem; max-width: 56rem; }
.yazi table { border-collapse: collapse; width: 100%; font-size: .97rem; }
.yazi th, .yazi td { text-align: left; vertical-align: top; padding: .65rem .85rem .65rem 0; border-bottom: 1px solid var(--cizgi); }
.yazi td:first-child { font-weight: 600; color: var(--murekkep); width: 42%; }
.yazi th { font-weight: 700; color: var(--yazi-2); font-size: .85rem; border-bottom-width: 2px; }

/* SSS */
.acilir { border-bottom: 1px solid var(--cizgi); }
.acilir:first-of-type { border-top: 1px solid var(--cizgi); }
.acilir summary {
  cursor: pointer; list-style: none;
  padding: 1rem 2.25rem 1rem 0; position: relative;
  font-weight: 650; color: var(--murekkep); font-size: 1.05rem; line-height: 1.4;
}
.acilir summary::-webkit-details-marker { display: none; }
.acilir summary::after {
  content: ""; position: absolute; right: .35rem; top: 1.25rem;
  width: .6rem; height: .6rem; border-right: 2px solid var(--vurgu); border-bottom: 2px solid var(--vurgu);
  transform: rotate(45deg); transition: transform .2s ease;
}
.acilir[open] summary::after { transform: rotate(-135deg); top: 1.5rem; }
.acilir-ic { padding: 0 0 1.1rem; color: var(--yazi); }
.acilir-ic p:last-child { margin-bottom: 0; }
@media (prefers-reduced-motion: reduce) { .acilir summary::after { transition: none; } }

/* program */
.program { list-style: none; padding: 0 !important; margin: 0 0 2rem !important; max-width: 52rem; }
.program-satir { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1.25rem; padding: 1.1rem 0 !important; border-bottom: 1px solid var(--cizgi); margin: 0 !important; }
.program-saat { margin: 0 !important; font-weight: 800; font-stretch: 80%; font-size: 1.25rem; color: var(--vurgu-koyu); font-variant-numeric: tabular-nums; }
.yazi .program-baslik { margin: 0 0 .25rem; font-size: 1.15rem; font-weight: 700; font-stretch: 95%; color: var(--murekkep); }
.program-aciklama p { margin: 0 0 .4rem; }
.program-yer { margin: .2rem 0 0 !important; font-size: .9rem; color: var(--yazi-2); }
@media (max-width: 560px) { .program-satir { grid-template-columns: 1fr; gap: .2rem; } }
.program-bos { background: var(--zemin); border-radius: var(--yaricap); padding: 1.5rem 1.5rem .5rem; max-width: var(--sutun); margin-bottom: 2rem; }
.program-bos p:first-child { font-size: 1.2rem; font-weight: 600; color: var(--murekkep); }

/* ---------- alt ---------- */
.alt { background: var(--murekkep-koyu); color: #C8D3E6; font-size: .95rem; }
.alt-ic {
  max-width: var(--genis); margin: 0 auto; padding: 3rem var(--kenar) 2rem;
  display: grid; grid-template-columns: 1.1fr 1fr 1.2fr; gap: 2rem;
}
.alt img { width: 190px; height: auto; display: block; margin-bottom: .9rem; }
.alt p { margin: 0 0 .9rem; }
.alt strong { color: #fff; }
.alt a { color: #fff; }
.alt-menu ul { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 1.25rem; }
.alt-menu li { margin-bottom: .4rem; }
.alt-menu a { text-decoration: none; }
.alt-menu a:hover { text-decoration: underline; }
.alt .alt-not { max-width: var(--genis); margin: 0 auto; padding: 1rem var(--kenar) 2rem; border-top: 1px solid rgba(255,255,255,.1); font-size: .85rem; color: #93A3BF; }
@media (max-width: 820px) { .alt-ic { grid-template-columns: 1fr; } }

@media print {
  .ust, .orgu, .hero-foto, .alt-menu, .hero-eylem { display: none !important; }
  .hero, .sayfa-bas, .alt { background: none; color: #000; }
}