html { box-sizing: border-box; scroll-padding-top: 80px; }
*, *::before, *::after { box-sizing: inherit; }

body {
  margin: 0;
  font-family: "Roboto", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: #134e4a;
  background: #f0fdfa;
}

h1, h2, h3 { font-family: "Roboto Slab", Georgia, serif; font-weight: 700; line-height: 1.25; color: #0f766e; }
a { color: #0d9488; }
a:hover { color: #0f766e; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, label[for]:focus-visible { outline: 3px dashed #0d9488; outline-offset: 3px; }

#atla { position: fixed; top: -100px; left: 1rem; background: #0d9488; color: #f0fdfa; padding: 0.6rem 1rem; z-index: 999; border-radius: 0 0 8px 8px; font-weight: 500; }
#atla:focus { top: 0; }

/* Üst */
#ust { position: sticky; top: 0; z-index: 30; background: rgba(240, 253, 250, 0.92); backdrop-filter: blur(8px); border-bottom: 2px solid #0d9488; }
#ust-ic { max-width: 1100px; margin: 0 auto; padding: 0.7rem 1.25rem; display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
#logo { display: inline-flex; align-items: center; gap: 0.6rem; font-family: "Roboto Slab", serif; font-weight: 700; font-size: 1.2rem; text-decoration: none; color: #0f766e; }
#menu { margin-left: auto; display: flex; gap: 0.2rem; }
#menu a { text-decoration: none; color: #134e4a; font-weight: 500; padding: 0.45rem 0.85rem; border-radius: 6px; font-size: 0.95rem; }
#menu a:hover { background: rgba(13, 148, 136, 0.12); }
#menu a[aria-current="page"] { background: #0d9488; color: #f0fdfa; }
#menu-ac { position: absolute; opacity: 0; pointer-events: none; }
#menu-dugme { display: none; width: 40px; height: 40px; margin-left: auto; cursor: pointer; position: relative; }
#menu-dugme span, #menu-dugme span::before, #menu-dugme span::after { content: ""; position: absolute; left: 8px; width: 24px; height: 3px; background: #0d9488; border-radius: 2px; transition: transform 0.2s; }
#menu-dugme span { top: 18px; }
#menu-dugme span::before { top: -8px; left: 0; }
#menu-dugme span::after { top: 8px; left: 0; }

/* Gövde */
#govde { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1.25rem 3.5rem; }
#iz { font-size: 0.9rem; color: #3f7f79; margin: 0 0 1.25rem; }
#iz a { text-decoration: none; }

#hero { display: grid; grid-template-columns: 1.15fr 1fr; align-items: center; gap: 2.5rem; padding: 2.5rem 0 3rem; }
#hero-metin h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); margin: 0 0 1rem; }
#slogan { font-size: 1.2rem; color: #3f7f79; margin: 0 0 1.75rem; max-width: 34em; }
#cta { display: inline-block; background: #0d9488; color: #f0fdfa; text-decoration: none; padding: 0.85rem 1.8rem; border-radius: 8px; font-weight: 700; font-family: "Roboto Slab", serif; box-shadow: 0 6px 18px rgba(13, 148, 136, 0.3); transition: transform 0.15s, box-shadow 0.15s; }
#cta:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(13, 148, 136, 0.35); color: #fff; }
#hero-sekil { position: relative; max-width: 460px; width: 100%; justify-self: end; }
#hero-dekor { position: absolute; top: -8%; right: -6%; width: 70%; height: auto; z-index: 0; opacity: 0.55; pointer-events: none; }
#hero-banner { position: relative; z-index: 1; display: block; width: 100%; max-width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 18px 18px 18px 60px; border: 4px solid #fff; box-shadow: 0 18px 40px rgba(13, 148, 136, 0.28); }

#tanitim, #makale { background: #fff; border-radius: 14px; padding: 2rem 2.25rem; box-shadow: 0 2px 14px rgba(19, 78, 74, 0.06); }
#makale h1 { font-size: clamp(1.7rem, 3.8vw, 2.5rem); margin: 0 0 1.25rem; }
.makale-kapakli { border-radius: 0 0 14px 14px; }
.makale-kapakli > :first-child { margin-top: 0; }

/* Kapak bandı: H1 görselin üzerinde overlay */
#kapak { position: relative; min-height: 260px; border-radius: 14px 14px 0 0; overflow: hidden; background: #0f766e; display: flex; align-items: flex-end; }
#kapak-gorsel { position: absolute; top: 0; left: 0; width: 100%; height: 100%; max-width: 100%; object-fit: cover; object-position: center; }
#kapak::after { content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(180deg, rgba(15, 118, 110, 0.05) 0%, rgba(15, 118, 110, 0.55) 55%, rgba(19, 78, 74, 0.92) 100%); }
#kapak-baslik { position: relative; z-index: 1; margin: 0; padding: 4rem 2.25rem 1.5rem; color: #f0fdfa; font-size: clamp(1.7rem, 3.8vw, 2.5rem); text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35); max-width: 26em; }
#tanitim h2, #makale h2 { font-size: 1.5rem; margin: 1.8rem 0 0.7rem; }
#tanitim h3, #makale h3 { font-size: 1.15rem; margin: 1.4rem 0 0.5rem; }
#tanitim > :first-child, #makale h1 + * { margin-top: 0; }
#tanitim p, #makale p { margin: 0 0 1rem; }
#tanitim ul, #makale ul, #tanitim ol, #makale ol { padding-left: 1.4rem; margin: 0 0 1rem; }
#tanitim li, #makale li { margin-bottom: 0.3rem; }
#tanitim table, #makale table { width: 100%; border-collapse: collapse; margin: 0 0 1.25rem; }
#tanitim th, #makale th, #tanitim td, #makale td { border: 1px solid #99f6e4; padding: 0.55rem 0.75rem; text-align: left; }
#tanitim th, #makale th { background: #ccfbf1; }

#yollar { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; margin-top: 1.5rem; }
.yol { display: grid; gap: 0.35rem; padding: 1.5rem 1.6rem; background: #fff; border: 2px solid #ccfbf1; border-radius: 14px; text-decoration: none; color: #134e4a; transition: border-color 0.15s; }
.yol:hover { border-color: #0d9488; }
.yol strong { font-family: "Roboto Slab", serif; font-size: 1.15rem; color: #0f766e; }
.yol span { font-size: 0.95rem; color: #3f7f79; }
.yol em { font-style: normal; font-weight: 500; color: #0d9488; }

#oz-sss { margin-top: 2.5rem; padding: 2rem 2.25rem; background: #0d9488; color: #f0fdfa; border-radius: 14px; }
#oz-sss h2 { color: #f0fdfa; margin: 0 0 1.25rem; }
#oz-sss dl { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem 2rem; }
#oz-sss dt { font-weight: 700; font-family: "Roboto Slab", serif; }
#oz-sss dd { margin: 0.25rem 0 0.5rem; opacity: 0.9; font-size: 0.95rem; }
#oz-sss-link { display: inline-block; margin-top: 1rem; color: #f0fdfa; font-weight: 500; }

#yan-cagri { margin-top: 1.5rem; padding: 1rem 1.5rem; border-left: 5px solid #0d9488; background: #ccfbf1; border-radius: 0 10px 10px 0; }
#yan-cagri p { margin: 0; }

/* SSS – checkbox tekniği */
#sss-liste { margin-top: 1.5rem; display: grid; gap: 0.75rem; }
.sq { background: #fff; border-radius: 10px; border: 1px solid #99f6e4; overflow: hidden; }
.sq-k { position: absolute; opacity: 0; width: 1px; height: 1px; }
.sq-b { display: block; cursor: pointer; padding: 1rem 3rem 1rem 1.4rem; font-weight: 700; font-family: "Roboto Slab", serif; color: #0f766e; position: relative; }
.sq-b::after { content: ""; position: absolute; right: 1.3rem; top: 50%; width: 10px; height: 10px; border-right: 3px solid #0d9488; border-bottom: 3px solid #0d9488; transform: translateY(-70%) rotate(45deg); transition: transform 0.2s; }
.sq-k:checked ~ .sq-b::after { transform: translateY(-20%) rotate(225deg); }
.sq-k:focus-visible ~ .sq-b { outline: 3px dashed #0d9488; outline-offset: -3px; }
.sq-c { display: none; padding: 0 1.4rem 1.2rem; color: #134e4a; }
.sq-k:checked ~ .sq-c { display: block; }
.sq-c p { margin: 0 0 0.6rem; }

/* İletişim */
#iletisim-alan { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; margin-top: 1.5rem; align-items: start; }
#form-kutu, #kanal-kutu { background: #fff; border-radius: 14px; padding: 1.75rem 2rem; box-shadow: 0 2px 14px rgba(19, 78, 74, 0.06); }
#form-kutu h2, #kanal-kutu h2 { margin: 0 0 1rem; font-size: 1.4rem; }
#form-kutu label { display: block; font-weight: 500; margin: 0.9rem 0 0.3rem; }
#form-kutu input, #form-kutu textarea { width: 100%; font: inherit; padding: 0.7rem 0.9rem; border: 2px solid #ccfbf1; border-radius: 8px; background: #f0fdfa; color: #134e4a; }
#form-kutu input:focus, #form-kutu textarea:focus { border-color: #0d9488; outline: none; }
#form-kutu textarea { resize: vertical; }
#fax-alan { position: absolute; left: -9000px; }
#gonder { margin-top: 1.25rem; background: #0d9488; color: #f0fdfa; border: 0; border-radius: 8px; padding: 0.8rem 1.6rem; font: 700 1rem "Roboto Slab", serif; cursor: pointer; }
#gonder:hover { background: #0f766e; }
#form-ok { background: #ccfbf1; border: 1px solid #0d9488; color: #0f766e; padding: 0.8rem 1rem; border-radius: 8px; font-weight: 500; }
#form-hata { background: #fef2f2; border: 1px solid #ef4444; color: #991b1b; padding: 0.8rem 1rem; border-radius: 8px; font-weight: 500; }
#kanal-kutu ul { list-style: none; margin: 0; padding: 0; }
#kanal-kutu li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.7rem 0; border-bottom: 1px dashed #99f6e4; }
#kanal-kutu li:last-child { border-bottom: 0; }
#kanal-kutu li span { font-weight: 500; color: #3f7f79; }
#kanal-kutu li a { word-break: break-all; text-align: right; }

#kayip { text-align: center; padding: 3rem 1rem; }
#kayip h1 { margin: 1rem 0 0.5rem; }
#kayip p { margin: 0 0 1.5rem; color: #3f7f79; }

/* Alt */
#alt { background: #ccfbf1; margin-top: 2rem; }
#alt-dalga { display: block; width: 100%; height: 40px; }
#alt-ic { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem 2rem; text-align: center; font-size: 0.93rem; color: #134e4a; }
#alt-metin { margin: 0.5rem 0 1rem; }
#alt-linkler { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin: 0 0 0.75rem; }
#alt-linkler a { text-decoration: none; font-weight: 500; }
#alt-telif { margin: 0; color: #3f7f79; font-size: 0.85rem; }

@media (max-width: 820px) {
  #menu-dugme { display: block; }
  #menu { display: none; width: 100%; flex-direction: column; margin: 0.5rem 0 0.25rem; }
  #menu-ac:checked ~ #menu { display: flex; }
  #menu-ac:checked ~ #menu-dugme span { background: transparent; }
  #menu-ac:checked ~ #menu-dugme span::before { transform: translateY(8px) rotate(45deg); }
  #menu-ac:checked ~ #menu-dugme span::after { transform: translateY(-8px) rotate(-45deg); }
  #hero { grid-template-columns: 1fr; padding: 1.5rem 0 2rem; gap: 1.5rem; }
  #hero-sekil { justify-self: center; max-width: 420px; }
  #hero-banner { border-radius: 14px; }
  #kapak { min-height: 190px; }
  #kapak-baslik { padding: 3rem 1.2rem 1.1rem; }
  #iletisim-alan { grid-template-columns: 1fr; }
  #tanitim, #makale, #oz-sss, #form-kutu, #kanal-kutu { padding: 1.4rem 1.2rem; }
  body { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  #cta, .sq-b::after, #menu-dugme span, #menu-dugme span::before, #menu-dugme span::after { transition: none; }
}

/* Blog: liste (#blog-liste / .yazi-kart), yazı (#yazi), komşu/ilgili, ana sayfa #taze, iç sayfa #blog-secki */
#blog-bas { padding: 1rem 0 1.5rem; }
#blog-bas h1 { font-size: clamp(2rem, 4.4vw, 2.9rem); margin: 0 0 0.6rem; }
#blog-sayfa-no { font-size: 0.5em; font-weight: 500; color: #3f7f79; }
#blog-tanim { margin: 0; color: #3f7f79; max-width: 46em; }
#blog-bos { color: #3f7f79; }
#blog-liste { display: grid; gap: 1.25rem; }
.yazi-kart { background: #fff; border-radius: 14px; padding: 1.5rem 1.75rem; box-shadow: 0 2px 14px rgba(19, 78, 74, 0.06); display: grid; gap: 1.25rem; border-left: 6px solid #99f6e4; transition: border-color 0.15s; }
.yazi-kart:hover { border-left-color: #0d9488; }
.yazi-kart-gorselli { grid-template-columns: 220px minmax(0, 1fr); align-items: start; }
.yazi-kart-gorsel img { display: block; width: 100%; max-width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 10px; }
.yazi-kart-metin time { font-size: 0.85rem; color: #3f7f79; font-weight: 500; }
.yazi-kart-metin h2 { font-size: 1.35rem; margin: 0.2rem 0 0.5rem; }
.yazi-kart-metin h2 a { text-decoration: none; }
.yazi-kart-metin h2 a:hover { text-decoration: underline; }
.yazi-kart-metin p { margin: 0 0 0.6rem; color: #134e4a; }
.yazi-kart-devam { font-weight: 500; text-decoration: none; }
#sayfalama { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 2rem; padding-top: 1.25rem; border-top: 2px dashed #99f6e4; font-weight: 500; }
#sayfalama a { text-decoration: none; }
#sayfalama-konum { color: #3f7f79; }
.sayfalama-yok { color: #9bc7c2; }

#yazi { background: #fff; border-radius: 14px; padding: 2rem 2.25rem; box-shadow: 0 2px 14px rgba(19, 78, 74, 0.06); }
#yazi-bas h1 { font-size: clamp(1.7rem, 3.8vw, 2.5rem); margin: 0 0 0.5rem; }
#yazi-tarih { margin: 0 0 1.5rem; color: #3f7f79; font-size: 0.92rem; }
#yazi-kapak { margin: 0 0 1.75rem; }
#yazi-kapak img { display: block; width: 100%; max-width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; border: 4px solid #f0fdfa; box-shadow: 0 10px 28px rgba(13, 148, 136, 0.2); }
#yazi-govde > :first-child { margin-top: 0; }
#yazi-govde h2 { font-size: 1.5rem; margin: 1.8rem 0 0.7rem; }
#yazi-govde h3 { font-size: 1.15rem; margin: 1.4rem 0 0.5rem; }
#yazi-govde p { margin: 0 0 1rem; }
#yazi-govde ul, #yazi-govde ol { padding-left: 1.4rem; margin: 0 0 1rem; }
#yazi-govde li { margin-bottom: 0.3rem; }
#yazi-govde table { width: 100%; border-collapse: collapse; margin: 0 0 1.25rem; }
#yazi-govde th, #yazi-govde td { border: 1px solid #99f6e4; padding: 0.55rem 0.75rem; text-align: left; }
#yazi-govde th { background: #ccfbf1; }

#komsu { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
#komsu a { display: flex; flex-direction: column; gap: 0.15rem; padding: 1rem 1.25rem; background: #ccfbf1; border-radius: 10px; text-decoration: none; color: #0f766e; font-family: "Roboto Slab", serif; font-weight: 700; }
#komsu a:hover { background: #99f6e4; }
#komsu small { font-family: "Roboto", sans-serif; font-weight: 500; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #3f7f79; }
#komsu .komsu-yeni { text-align: right; align-items: flex-end; }

#ilgili { margin-top: 2.5rem; }
#ilgili h2 { margin: 0 0 1rem; font-size: 1.5rem; }
#ilgili-liste { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.ilgili-kart { display: grid; gap: 0.3rem; padding: 1.25rem 1.35rem; background: #fff; border: 2px solid #ccfbf1; border-radius: 12px; text-decoration: none; color: #134e4a; transition: border-color 0.15s; }
.ilgili-kart:hover { border-color: #0d9488; }
.ilgili-kart time { font-size: 0.8rem; color: #3f7f79; }
.ilgili-kart strong { font-family: "Roboto Slab", serif; color: #0f766e; line-height: 1.3; }
.ilgili-kart span { font-size: 0.9rem; color: #3f7f79; }
#ilgili-hepsi { margin: 1rem 0 0; font-weight: 500; }
#ilgili-hepsi a { text-decoration: none; }

#taze { margin-top: 2.5rem; }
#taze-bas { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
#taze-bas h2 { margin: 0; font-size: 1.6rem; }
#taze-hepsi { font-weight: 500; text-decoration: none; }
#taze-liste { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.25rem; }
.taze-kart { background: #fff; border-radius: 14px; padding: 1.4rem 1.5rem; box-shadow: 0 2px 14px rgba(19, 78, 74, 0.06); border-top: 5px solid #0d9488; }
.taze-kart time { font-size: 0.8rem; color: #3f7f79; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.taze-kart h3 { font-size: 1.15rem; margin: 0.3rem 0 0.5rem; }
.taze-kart h3 a { text-decoration: none; }
.taze-kart h3 a:hover { text-decoration: underline; }
.taze-kart p { margin: 0; font-size: 0.95rem; color: #134e4a; }

#blog-secki { margin-top: 1.5rem; padding: 1.25rem 1.5rem; background: #fff; border: 2px dashed #99f6e4; border-radius: 14px; }
#blog-secki h2 { margin: 0 0 0.75rem; font-size: 1.25rem; }
#blog-secki ul { list-style: none; margin: 0 0 0.75rem; padding: 0; display: grid; gap: 0.5rem; }
#blog-secki li { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
#blog-secki li a { font-weight: 500; text-decoration: none; }
#blog-secki li a:hover { text-decoration: underline; }
#blog-secki time { font-size: 0.82rem; color: #3f7f79; white-space: nowrap; }
#blog-secki-hepsi { font-weight: 500; text-decoration: none; }

@media (max-width: 820px) {
  .yazi-kart, .yazi-kart-gorselli { grid-template-columns: 1fr; padding: 1.2rem 1.2rem; }
  .yazi-kart-gorsel { max-width: 360px; }
  #yazi { padding: 1.4rem 1.2rem; }
  #komsu .komsu-yeni { text-align: left; align-items: flex-start; }
  #sayfalama { flex-wrap: wrap; justify-content: center; }
  #blog-secki li { flex-direction: column; gap: 0.1rem; }
}