/* 4R Mühendislik — sinematik editoryal tema. Koyu su zemin, açık teknik bölümler. Tüm renkler açık yazılır. */
/* Yazı tipleri kendinden sunulur (public/fonts, Google Fonts'tan latin + latin-ext woff2; değişken ağırlık). */
@font-face{font-family:"Manrope";font-style:normal;font-weight:200 800;font-display:swap;src:url(/fonts/manrope-latin.woff2) format("woff2");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}
@font-face{font-family:"Manrope";font-style:normal;font-weight:200 800;font-display:swap;src:url(/fonts/manrope-latin-ext.woff2) format("woff2");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:"JetBrains Mono";font-style:normal;font-weight:100 800;font-display:swap;src:url(/fonts/jetbrains-mono-latin.woff2) format("woff2");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}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:100 800;font-display:swap;src:url(/fonts/jetbrains-mono-latin-ext.woff2) format("woff2");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}
:root{
  /* Marka ana renkleri firma JPEG'inden örneklendi; koyu/açık tonlar arayüz kontrastı içindir. */
  --brand-blue:#3080BF; --brand-grey:#686262;
  --deep:#10171F; --deep-2:#182530; --deep-3:#203747; --ink:#182B3B; --ink-2:#435565; --ink-3:#596875;
  --aqua:#236EA8; --aqua-2:#75B9EC; --aqua-ink:#205F91; --aqua-soft:#DBEAF5; --water:#BCD6EB; --water-soft:#EDF4FA;
  --oxide:#A65A3A; --oxide-soft:#F3E6DF;
  --bg:#F6F7F8; --surface:#FFFFFF; --surface-2:#EEF2F6; --line:#D3DDE5; --line-soft:#E4EAF0; --line-dark:rgba(255,255,255,.14);
  --on-dark:#F0F4F8; --on-dark-2:#C0CDD8; --on-dark-3:#A0B2C2;
  --good:#276E50; --good-soft:#DDEFE6; --bad:#A33A28; --bad-soft:#F6E1DC; --warn:#835D0F; --warn-soft:#F6ECD3; --wa:#178049;
  --font:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --wrap:1280px; --gutter:clamp(20px,4vw,64px); --r:8px; --r-lg:12px; --ease:cubic-bezier(.16,1,.3,1);
  --shadow:0 1px 2px rgba(14,42,48,.06),0 12px 32px rgba(14,42,48,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1.0625rem;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body.lock{overflow:hidden}
img,svg,video{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;line-height:1.05;letter-spacing:-.025em;text-wrap:balance;font-weight:700;color:inherit}
h2{font-size:clamp(2rem,4.4vw,3.8rem);font-weight:600;letter-spacing:-.03em}
h3{font-size:clamp(1.2rem,1.7vw,1.5rem);letter-spacing:-.015em}
h4{font-size:1.05rem;letter-spacing:-.01em}
p{margin:0 0 1em}
a{color:var(--aqua-ink);text-underline-offset:.16em}
a:hover{color:var(--aqua)}
:focus-visible{outline:3px solid var(--aqua-2);outline-offset:3px;border-radius:2px}
.mono{font-family:var(--mono);font-size:.85em}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;color:var(--aqua-ink);font-weight:500}
.muted{color:var(--ink-3)}
.narrow{max-width:66ch}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:var(--r);z-index:100}
.skip:focus{left:8px}
@keyframes fadeSlideUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
@keyframes slowZoom{from{transform:scale(1.08)}to{transform:scale(1)}}
@keyframes drift{from{transform:scale(1) translateY(0)}to{transform:scale(1.06) translateY(-1.5%)}}
.r{opacity:1;transform:none}
.js .r{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .r.in{opacity:1;transform:none}
.js .r[data-d="1"]{transition-delay:.12s}.js .r[data-d="2"]{transition-delay:.24s}.js .r[data-d="3"]{transition-delay:.36s}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.js .r{opacity:1;transform:none}}

/* düğmeler */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:600;text-decoration:none;font-size:.97rem;border:1.5px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2;background:var(--ink);color:#fff;transition:transform .3s var(--ease),background .2s,border-color .2s,color .2s}
.btn:hover{transform:translateY(-1px) scale(1.02);color:#fff}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:var(--deep)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn.wa{background:var(--wa);color:#fff}
.btn.wa:hover{background:#136a3c}
.on-dark .btn.primary,.hero .btn.primary,.result .btn.primary{background:#fff;color:var(--ink)}
.on-dark .btn.primary:hover,.hero .btn.primary:hover,.result .btn.primary:hover{background:var(--water-soft);color:var(--ink)}
.on-dark .btn.ghost,.hero .btn.ghost,.result .btn.ghost{border-color:rgba(255,255,255,.4);color:#fff}
.on-dark .btn.ghost:hover,.hero .btn.ghost:hover,.result .btn.ghost:hover{border-color:#fff;color:#fff}
.btn .arrow{display:inline-block;transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn[aria-disabled="true"],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.pill{font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;padding:3px 9px;border-radius:999px;display:inline-block;border:1px solid var(--line);color:var(--ink-2);background:var(--surface)}
.on-dark .pill{border-color:var(--line-dark);color:var(--on-dark-2);background:transparent}
.pill.ok{background:var(--good-soft);color:var(--good);border-color:transparent}
.pill.warn{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.pill.aq{background:var(--aqua-soft);color:var(--aqua-ink);border-color:transparent}

/* üst bar: şeffaf başlar, kaydırınca cam olur; açık sayfalarda koyu zemin sayfa başlığından gelir */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:1px solid transparent;transition:background .35s,border-color .35s,backdrop-filter .35s}
.site-header.scrolled{background:rgba(16,23,31,.78);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-bottom-color:var(--line-dark)}
.site-header .wrap{display:flex;align-items:center;gap:18px;height:80px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;margin-right:auto;position:relative;z-index:70}
.brand:hover{color:#fff}
.brand picture{display:block;line-height:0}
.brand .brand-logo{height:34px;width:auto;display:block}
.nav{display:flex;gap:2px;align-items:center}
.nav a{color:rgba(255,255,255,.82);text-decoration:none;font-weight:500;font-size:.9rem;padding:8px 10px;border-radius:6px;white-space:nowrap;transition:color .2s}
.nav a:hover,.nav a[aria-current="page"]{color:#fff}
.nav a.cta{background:#fff;color:var(--ink);font-weight:600;padding:10px 18px;border-radius:999px;margin-left:8px;transition:transform .3s var(--ease)}
.nav a.cta:hover{transform:scale(1.04);color:var(--ink)}
.nav .tel{font-family:var(--mono);font-size:.82rem}
.nav .lang{border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:6px 10px;font-family:var(--mono);font-size:.74rem}
@media (min-width:1021px) and (max-width:1180px){.nav a{font-size:.84rem;padding:8px 7px}.nav .tel{display:none}}
.nav-toggle{display:none;position:relative;z-index:70;width:44px;height:44px;border:0;background:transparent;color:#fff;cursor:pointer;padding:0;transition:transform .15s}
.nav-toggle:active{transform:scale(.9)}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:currentColor;border-radius:2px;transition:transform .35s var(--ease),opacity .3s,top .35s var(--ease)}
.nav-toggle span:nth-child(1){top:15px}.nav-toggle span:nth-child(2){top:21px}.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}
.nav-toggle .sr{position:absolute;left:-9999px}
@media (max-width:1020px){
  .nav-toggle{display:block}
  .nav{position:fixed;inset:0;height:100dvh;opacity:0;visibility:hidden;pointer-events:none;background:rgba(16,23,31,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;padding:80px var(--gutter) 40px;transition:opacity .5s var(--ease),visibility 0s .5s;z-index:65;overflow-y:auto}
  .nav.open{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .5s var(--ease),visibility 0s}
  .nav a{font-size:clamp(1.7rem,6.5vw,2.5rem);font-weight:600;letter-spacing:-.02em;padding:6px 0;color:rgba(255,255,255,.92);opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .nav.open a{opacity:1;transform:none}
  .nav.open a:nth-child(1){transition-delay:.08s}.nav.open a:nth-child(2){transition-delay:.12s}.nav.open a:nth-child(3){transition-delay:.16s}.nav.open a:nth-child(4){transition-delay:.2s}.nav.open a:nth-child(5){transition-delay:.24s}.nav.open a:nth-child(6){transition-delay:.28s}.nav.open a:nth-child(7){transition-delay:.32s}.nav.open a:nth-child(8){transition-delay:.36s}.nav.open a:nth-child(9){transition-delay:.4s}.nav.open a:nth-child(10){transition-delay:.44s}.nav.open a:nth-child(11){transition-delay:.48s}
  .nav a.cta{margin:18px 0 0;font-size:1.05rem;padding:14px 26px}
  .nav .tel,.nav .lang{font-size:1rem;padding:6px 0;border:0;font-weight:500}
}

/* HERO: tam ekran fotoğraf, yavaş yakınlaşma, kademeli metin */
.hero{position:relative;height:100svh;min-height:620px;max-height:1100px;width:100%;overflow:hidden;background:var(--deep);color:#fff;display:flex;flex-direction:column}
.hero .bg{position:absolute;inset:0}
.hero .bg picture,.hero .bg img{width:100%;height:100%}
.hero .bg img{object-fit:cover;object-position:var(--pos,60% center);animation:slowZoom 8s var(--ease) both}
.hero .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,23,31,.5) 0%,rgba(16,23,31,.02) 32%,rgba(16,23,31,.12) 58%,rgba(16,23,31,.9) 100%)}
.hero .body{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;justify-content:space-between;padding:calc(80px + clamp(20px,5vh,64px)) var(--gutter) clamp(26px,5vh,56px);max-width:var(--wrap);width:100%;margin:0 auto}
.hero .badge{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:rgba(255,255,255,.88);margin-bottom:clamp(14px,2vh,26px);animation:fadeSlideUp .8s ease .2s both}
.hero h1{font-size:clamp(2.5rem,7.4vw,6.6rem);font-weight:600;line-height:.98;letter-spacing:-.04em;color:#fff;max-width:14ch;animation:fadeSlideUp .8s ease .4s both}
.hero h1 em{font-style:normal;color:var(--water)}
.hero .bottom{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end}
.hero .bottom p{font-size:clamp(.95rem,1.25vw,1.15rem);line-height:1.55;color:rgba(255,255,255,.7);max-width:36rem;margin:0 0 22px;animation:fadeSlideUp .8s ease .7s both}
.hero .acts{display:flex;gap:10px;flex-wrap:wrap;animation:fadeSlideUp .8s ease .9s both}
.hero .facts{display:flex;gap:26px;flex-wrap:wrap;font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:rgba(255,255,255,.62);animation:fadeSlideUp .8s ease 1.1s both;justify-self:end;text-align:right}
.hero .facts b{display:block;color:#fff;font-weight:500;font-size:1rem;font-family:var(--font);letter-spacing:0}
.hero .scroll{position:absolute;right:var(--gutter);bottom:18px;z-index:2;font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;color:rgba(255,255,255,.55);display:flex;gap:10px;align-items:center;text-decoration:none;animation:fadeSlideUp .8s ease 1.3s both}
.hero .scroll::after{content:"";width:40px;height:1px;background:rgba(255,255,255,.5)}
@media (max-width:820px){.hero{min-height:600px}.hero .veil{background:linear-gradient(180deg,rgba(16,23,31,.62) 0%,rgba(16,23,31,.28) 28%,rgba(16,23,31,.38) 52%,rgba(16,23,31,.94) 100%)}.hero h1,.hero .bottom p{text-shadow:0 2px 28px rgba(16,23,31,.5)}.hero .body{padding-bottom:calc(56px + 22px)}.hero .badge .x{display:none}.hero h1{max-width:none}.hero .bottom{grid-template-columns:1fr;gap:18px}.hero .facts{justify-self:start;text-align:left;gap:16px 20px}.hero .scroll{display:none}}

/* bölümler ve tonlar */
section.block{padding:clamp(72px,10vh,128px) 0}
.on-dark{background:var(--deep-2);color:var(--on-dark)}
.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}
.on-dark p{color:var(--on-dark-2)}
.on-dark a{color:var(--water)}
.on-dark .eyebrow,.on-dark .muted{color:var(--aqua-2)}
.on-dark .muted{color:var(--on-dark-3)}
.on-white{background:var(--surface)}
.sec-head{display:grid;gap:14px;margin-bottom:clamp(28px,4vh,52px);max-width:62ch}
.sec-head p{margin:0;font-size:clamp(1rem,1.3vw,1.2rem);color:var(--ink-2)}
.on-dark .sec-head p{color:var(--on-dark-2)}
.sec-head .eyebrow{display:flex;gap:12px;align-items:center}
.sec-head .eyebrow::before{content:"";width:28px;height:1px;background:currentColor;flex:none}
.rule{border:0;border-top:1px solid var(--line-soft);margin:0}
.photo{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--water);aspect-ratio:4/3}
.photo img{width:100%;height:100%;object-fit:cover}
.photo.wide{aspect-ratio:16/9}
.photo .cap{position:absolute;left:12px;bottom:12px;background:rgba(16,23,31,.7);color:#fff;font-family:var(--mono);font-size:.66rem;padding:5px 9px;border-radius:4px;letter-spacing:.03em}

/* manifesto bandı: tam genişlik fotoğraf, altta dar metin */
.band-photo{position:relative;min-height:clamp(460px,78vh,820px);display:grid;align-items:end;color:#fff;overflow:hidden;background:var(--deep)}
.band-photo picture,.band-photo>picture img{position:absolute;inset:0;width:100%;height:100%}
.band-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:var(--pos,center)}
.band-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,23,31,.05) 20%,rgba(16,23,31,.86) 100%)}
.band-photo .wrap{position:relative;z-index:1;padding-top:72px;padding-bottom:clamp(36px,6vh,72px);display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:end;width:100%}
.band-photo h2{font-size:clamp(1.9rem,4.2vw,3.6rem);font-weight:600;letter-spacing:-.035em;color:#fff;max-width:16ch}
.band-photo p{color:rgba(255,255,255,.74);margin:0;max-width:46ch;font-size:clamp(.98rem,1.2vw,1.1rem)}
.band-photo .cap{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:rgba(255,255,255,.55);margin-top:14px;display:block}
@media (max-width:820px){.band-photo{min-height:520px}.band-photo .wrap{grid-template-columns:1fr;gap:18px}}

/* kesit */
.cut{background:var(--deep);color:var(--on-dark)}
.cut h2,.cut h3{color:#fff}
.cut .sec-head p{color:var(--on-dark-2)}
.cut .eyebrow{color:var(--aqua-2)}
.cut .stage{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,4vw,56px);align-items:start}
@media (max-width:900px){.cut .stage{grid-template-columns:1fr}}
.cut svg{width:100%;height:auto;border-radius:var(--r-lg);background:#0D1720;border:1px solid var(--line-dark)}
.cut .tabs{display:flex;flex-direction:column;gap:6px}
.cut .tab{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start;text-align:left;background:transparent;border:1px solid var(--line-dark);border-radius:10px;padding:16px 18px;color:#fff;font:inherit;cursor:pointer;transition:background .2s,border-color .2s,transform .35s var(--ease)}
.cut .tab i{width:22px;height:22px;border-radius:50%;border:2px solid var(--aqua-2);display:block;margin-top:2px;transition:background .2s}
.cut .tab b{display:block;font-size:1.02rem;font-weight:600}
.cut .tab span span{display:block;color:var(--on-dark-2);font-size:.9rem;margin-top:4px}
.cut .tab[aria-selected="true"]{background:rgba(255,255,255,.06);border-color:var(--aqua-2);transform:translateX(6px)}
.cut .tab[aria-selected="true"] i{background:var(--aqua-2)}
.cut .tab:hover{border-color:var(--aqua-2)}
.cut .legend{font-family:var(--mono);font-size:.7rem;color:var(--on-dark-3);margin-top:10px}
.cut .layer{transition:opacity .45s var(--ease)}
.cut svg[data-active] .layer{opacity:.22}
.cut svg[data-active="kaplama"] .layer-kaplama,.cut svg[data-active="yalitim"] .layer-yalitim,.cut svg[data-active="tasiyici"] .layer-tasiyici,.cut svg[data-active="dolasim"] .layer-dolasim,.cut svg .layer-base{opacity:1}
.cut :focus-visible,.result :focus-visible,.site-footer :focus-visible,.on-dark :focus-visible{outline-color:var(--aqua-2)}

/* projeler: editoryal ızgara */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.filters button{font:inherit;font-size:.88rem;font-weight:600;padding:9px 16px;border-radius:999px;border:1.5px solid var(--line);background:transparent;color:var(--ink-2);cursor:pointer;transition:all .2s}
.filters button:hover{border-color:var(--ink)}
.filters button[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.proj-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,28px)}
.proj-grid .proj{grid-column:span 4}
.proj-grid .proj.featured{grid-column:span 8;grid-row:span 2}
@media (max-width:820px){.proj-grid{grid-template-columns:repeat(4,1fr);gap:16px}.proj-grid .proj,.proj-grid .proj.featured{grid-column:span 4;grid-row:auto}}
.proj{display:grid;gap:12px;text-decoration:none;color:inherit;position:relative;align-content:start}
.proj:hover{color:inherit}
.proj .photo{aspect-ratio:4/3;background:var(--water)}
.proj.featured .photo{aspect-ratio:16/10}
@media (min-width:821px){.proj.featured{grid-template-rows:minmax(0,1fr) auto auto}.proj.featured .photo{aspect-ratio:auto;height:auto;min-height:0}}
.proj .photo img{transition:transform 1s var(--ease)}
.proj:hover .photo img{transform:scale(1.045)}
.proj .meta{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.proj .meta .mono{color:var(--ink-3)}
.proj h3,.proj .card-h{transition:color .2s}
.proj h2.card-h{font-size:clamp(1.2rem,1.7vw,1.5rem);letter-spacing:-.015em;font-weight:700}
.proj.featured h3,.proj.featured .card-h{font-size:clamp(1.5rem,2.4vw,2.2rem)}
.proj:hover h3,.proj:hover .card-h{color:var(--aqua-ink)}
.proj .go{position:absolute;top:14px;right:14px;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--ink);display:grid;place-items:center;font-size:1.15rem;opacity:0;transform:translateY(6px);transition:opacity .3s,transform .35s var(--ease);z-index:1}
.proj:hover .go{opacity:1;transform:none}
.empty{padding:28px;border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--ink-2);text-align:center}
.empty[hidden]{display:none}

/* arşiv şeridi: yatay kaydırma */
.strip-wrap{overflow:hidden}
.strip{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px var(--gutter) 20px;scrollbar-width:thin;scrollbar-color:var(--aqua-2) transparent;-webkit-overflow-scrolling:touch}
.strip figure{flex:0 0 auto;width:min(74vw,560px);margin:0;scroll-snap-align:start;border-radius:var(--r-lg);overflow:hidden;background:var(--deep-3);position:relative}
.strip figure.tall{width:min(58vw,340px)}
.strip picture,.strip img{width:100%;height:100%}
.strip img{object-fit:cover;aspect-ratio:4/3}
.strip figure.tall img{aspect-ratio:3/4}
.strip figcaption{position:absolute;left:12px;bottom:12px;font-family:var(--mono);font-size:.64rem;letter-spacing:.04em;color:#fff;background:rgba(16,23,31,.62);padding:5px 9px;border-radius:5px}
.strip-note{font-family:var(--mono);font-size:.7rem;color:var(--on-dark-3);margin:0}

/* Following a drop. Only the enhanced, sufficiently tall viewport gets pinned. */
.story-tools{display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--mono);font-size:.72rem;margin-bottom:16px}
.story-skip{color:var(--aqua-2);text-underline-offset:4px}
.cut-count{color:var(--aqua-2)}
#kesit-son,#archive-gallery{scroll-margin-top:100px}
.archive-gallery{margin:24px 0}
.archive-gallery summary{margin:0 var(--gutter) 20px;cursor:pointer;color:var(--aqua-2)}
.archive-story[hidden]{display:none}
.scroll-stories .cut{padding:0;height:calc(100svh + 1800px)}
.scroll-stories .cut-pin{position:sticky;top:84px;padding-top:20px;padding-bottom:24px}
.scroll-stories .cut-pin::before,.scroll-stories .archive-pin::before{content:"";display:block;height:2px;background:var(--aqua-2);transform:scaleX(var(--story-progress,0));transform-origin:left;margin-bottom:16px}
.scroll-stories .cut .sec-head{margin-bottom:16px}
.scroll-stories .cut h2{font-size:clamp(1.6rem,3vw,2.8rem)}
.scroll-stories .cut .sec-head p{font-size:.88rem;max-width:80ch}
.scroll-stories .cut .tab{padding:10px 12px;transform:none}
.scroll-stories .cut .tab:not([aria-selected="true"]) span span{display:none}
.scroll-stories .cut .legend{margin:8px 0 0}
.scroll-stories .archive-story{height:calc(100svh + 1600px)}
.scroll-stories .archive-pin{position:sticky;top:84px;padding:16px var(--gutter) 24px}
.scroll-stories .archive-pin .sec-head{margin-bottom:16px}
.scroll-stories .archive-pin h2{font-size:clamp(1.6rem,3vw,2.8rem)}
.scroll-stories .archive-pin .sec-head p{font-size:.85rem;max-width:80ch}
.scroll-stories .archive-story ~ .wrap:has(.sec-head){display:none}
.archive-viewport{overflow:hidden;border-radius:var(--r-lg)}
.archive-track{display:flex;gap:16px}
.archive-track figure{flex:0 0 100%;margin:0;height:clamp(200px,43svh,460px);overflow:hidden;border-radius:var(--r-lg)}
.archive-track picture,.archive-track img{display:block;width:100%;height:100%;object-fit:cover}
.archive-track figcaption{display:none}
.archive-pin .story-tools{margin:16px 0 8px}
.archive-caption{display:block;color:var(--on-dark-2);font-size:.85rem;min-height:2.6em}
/* Grid items must be allowed to shrink below their intrinsic text/table widths. */
.stage > *,.g12 > *,.row2 > *,.cols > *{min-width:0}
input,select,textarea{min-width:0;max-width:100%}
@media(max-width:820px){
  .scroll-stories .cut{height:calc(100svh + 1200px)}
  .scroll-stories .cut-pin{top:76px;padding-top:8px}
  .scroll-stories .cut .stage{gap:10px}
  .scroll-stories .cut .sec-head{gap:8px}
  .scroll-stories .cut .sec-head p{margin-top:0;font-size:.78rem}
  .scroll-stories .cut .eyebrow{font-size:.6rem}
  .scroll-stories .cut svg{max-height:140px}
  .scroll-stories .cut .tab{padding:7px 10px;gap:10px}
  .scroll-stories .cut .tab b{font-size:.85rem}
  .scroll-stories .cut .tab span span{font-size:.78rem}
  .scroll-stories .cut .legend{font-size:.6rem}
  .scroll-stories .archive-story{height:calc(100svh + 1200px)}
  .scroll-stories .archive-pin{top:76px}
  .archive-track{display:grid}
  .archive-track figure{grid-area:1/1;min-width:0;width:100%;height:36svh;opacity:0;transform:translateY(12px);transition:opacity .25s,transform .25s}
  .archive-track figure.is-active{opacity:1;transform:none}
}

/* dört uzmanlık: tam genişlik satırlar */
.disc-list{display:grid}
.disc{display:grid;grid-template-columns:1fr 1fr;min-height:clamp(380px,56vh,600px);border-top:1px solid var(--line-dark);text-decoration:none;color:#fff}
.disc:hover{color:#fff}
.disc:last-child{border-bottom:1px solid var(--line-dark)}
.disc .ph{position:relative;overflow:hidden;background:var(--deep-3);min-height:100%}
.disc .ph picture{position:absolute;inset:0}
.disc .ph picture,.disc .ph img{width:100%;height:100%}
.disc .ph img{object-fit:cover;transition:transform 1.1s var(--ease)}
.disc:hover .ph img{transform:scale(1.045)}
.disc .tx{display:grid;align-content:center;gap:14px;padding:clamp(28px,5vw,72px) var(--gutter)}
.disc .idx{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--aqua-2)}
.disc h3{font-size:clamp(1.7rem,3.2vw,2.8rem);font-weight:600;letter-spacing:-.03em;color:#fff}
.disc p{color:var(--on-dark-2);max-width:46ch;margin:0}
.disc .more{font-weight:600;display:inline-flex;gap:10px;align-items:center;color:var(--water)}
.disc .more .arrow{transition:transform .3s var(--ease)}
.disc:hover .more .arrow{transform:translateX(5px)}
.disc:nth-child(even) .ph{order:2}
@media (max-width:820px){.disc{grid-template-columns:1fr;min-height:0}.disc .ph{aspect-ratio:16/10;order:0!important}}

/* hesaplayıcı (açık) */
.calc{background:var(--surface)}
.calc .g12{display:grid;grid-template-columns:6fr 6fr;gap:clamp(24px,4vw,56px);align-items:start}
@media (max-width:900px){.calc .g12{grid-template-columns:1fr}}
.calc form{display:grid;gap:16px}
.calc .result{position:sticky;top:96px}
@media (max-width:900px){.calc .result{position:relative;top:auto}}
.field{display:grid;gap:6px}
.field label{font-weight:600;font-size:.92rem}
.field small{color:var(--ink-3);font-size:.8rem}
.field input:not([type=checkbox]),.field select{font:inherit;font-size:1rem;padding:13px 14px;border:1.5px solid #7F979D;border-radius:var(--r);background:var(--surface);color:var(--ink);width:100%}
.field input:focus,.field select:focus{border-color:var(--aqua);outline:none;box-shadow:0 0 0 3px var(--aqua-soft)}
.field[data-invalid="true"] input,.field[data-invalid="true"] select{border-color:var(--bad)}
.field .err{color:var(--bad);font-size:.84rem;font-weight:600}
.field .err:empty{display:none}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:480px){.row2{grid-template-columns:1fr}}
fieldset{border:0;padding:0;margin:0;display:grid;gap:8px}
legend{font-weight:600;font-size:.92rem;padding:0;margin-bottom:6px}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:8px}
@media (max-width:480px){.checks{grid-template-columns:1fr}}
.check{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--r);cursor:pointer;font-size:.92rem;background:var(--surface);transition:border-color .2s,background .2s}
.check:has(input:checked){border-color:var(--aqua);background:var(--water-soft)}
.check input{accent-color:var(--aqua);margin:3px 0 0;flex:none}
.check small{display:block;color:var(--ink-3);font-size:.78rem}
.result{background:var(--deep-2);color:#fff;border-radius:16px;padding:28px;display:grid;gap:14px;position:relative;overflow:hidden}
.result::before{content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(58,167,179,.35),transparent 70%);pointer-events:none}
.result>*{position:relative}
.result .eyebrow{color:var(--aqua-2)}
.result .range{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;letter-spacing:-.03em;line-height:1.05;font-variant-numeric:tabular-nums}
.result .sub{color:var(--on-dark-2);font-size:.9rem;margin:0}
.result table{width:100%;border-collapse:collapse;font-size:.88rem}
.result td{padding:8px 0;border-bottom:1px solid var(--line-dark);color:var(--on-dark-2)}
.result td:last-child{text-align:right;font-variant-numeric:tabular-nums;color:#fff;white-space:nowrap}
.result tr:last-child td{border-bottom:0}
.result .plan{background:#0D1720;border-radius:10px;padding:12px;border:1px solid var(--line-dark)}
.result .plan svg{width:100%;height:auto}
.result .btns{display:grid;gap:8px}
.result .note{font-size:.76rem;color:var(--on-dark-3);margin:0}
.result .scope{font-size:.82rem;color:var(--on-dark-2);display:grid;gap:4px}
.result .scope b{color:#fff;font-weight:600}
.result[data-state="invalid"] .range{color:var(--on-dark-3);font-size:1.2rem;font-weight:600}

/* kanıt: gece havuzu zemin */
.proof{position:relative;color:#fff;overflow:hidden;background:var(--deep)}
.proof .bgimg{position:absolute;inset:0;width:100%;height:100%}
.proof .bgimg img{width:100%;height:100%;object-fit:cover;opacity:.42;filter:saturate(.75)}
.proof::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,23,31,.94),rgba(16,23,31,.72) 45%,rgba(16,23,31,.96));z-index:0}
.proof .wrap{position:relative;z-index:1}
.proof h2,.proof h3,.proof h4{color:#fff}
.proof .eyebrow{color:var(--aqua-2)}
.proof .muted{color:var(--on-dark-3)}
.proof a{color:var(--water)}
.cred{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
@media (max-width:960px){.cred{grid-template-columns:repeat(2,1fr)}}
.cred div{border-top:1px solid var(--line);padding-top:16px}
.proof .cred div{border-top-color:var(--line-dark)}
.cred b{display:block;font-size:1.1rem;font-weight:600}
.cred p{margin:8px 0 0;font-size:.9rem;color:var(--ink-2)}
.proof .cred p{color:var(--on-dark-2)}
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(14px,2vw,24px);counter-reset:s}
@media (max-width:960px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{counter-increment:s;display:grid;gap:8px;align-content:start;border-top:1px solid var(--aqua-2);padding-top:14px}
.step::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-size:.74rem;color:var(--aqua-2)}
.step p{margin:0;font-size:.92rem;color:var(--on-dark-2)}
.step .t{font-family:var(--mono);font-size:.72rem;color:var(--on-dark-3)}
.step .give{font-size:.86rem;color:#fff;border-left:2px solid var(--water);padding-left:10px}
.reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
@media (max-width:820px){.reviews{grid-template-columns:1fr}}
.review{display:grid;gap:10px;border-top:1px solid var(--line-dark);padding-top:14px}
.review p{margin:0;color:var(--on-dark);font-size:1rem}
.review .who{font-size:.84rem;color:var(--on-dark-3)}
.review .who b{color:#fff}
.stars{color:#E0B14A;letter-spacing:2px;font-size:.9rem}

/* keşif (açık) */
.contact{background:var(--surface);border-top:1px solid var(--line-soft)}
.contact .g12{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,64px);align-items:start}
@media (max-width:900px){.contact .g12{grid-template-columns:1fr}}
.contact .intro{display:grid;gap:16px}
.contact form{display:grid;gap:14px}
.contact .direct{display:grid;gap:8px;font-size:.95rem}
.contact .direct a{font-family:var(--mono);font-weight:500}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.status{padding:12px 14px;border-radius:var(--r);font-size:.92rem;display:none}
.status[data-kind="ok"]{display:block;background:var(--good-soft);color:var(--good)}
.status[data-kind="err"]{display:block;background:var(--bad-soft);color:var(--bad)}
.status[data-kind="busy"]{display:block;background:var(--surface-2);color:var(--ink-2)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--ink-2)}
.consent input{margin-top:3px;accent-color:var(--aqua);width:auto;padding:0;flex:none}

/* iç sayfalar */
.page-head{background:var(--deep-2);color:#fff;padding:calc(80px + clamp(40px,9vh,110px)) 0 clamp(36px,6vh,72px);position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-10%;top:-40%;width:50vw;height:140%;background:radial-gradient(closest-side,rgba(8,127,140,.28),transparent);pointer-events:none}
.page-head .wrap{position:relative;z-index:1}
.page-head h1{font-size:clamp(2.2rem,5.6vw,4.8rem);font-weight:600;letter-spacing:-.035em;color:#fff;max-width:18ch;animation:fadeSlideUp .8s ease .1s both}
.page-head p{color:var(--on-dark-2);font-size:clamp(1rem,1.4vw,1.25rem);max-width:60ch;margin:16px 0 0;animation:fadeSlideUp .8s ease .3s both}
.page-head a{color:var(--water)}
.page-head .btn.primary{background:#fff;color:var(--ink)}
.page-head .btn.ghost{border-color:rgba(255,255,255,.4);color:#fff}
.crumbs{font-family:var(--mono);font-size:.7rem;color:var(--on-dark-3);margin-bottom:18px;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--on-dark-3);text-decoration:none}
.crumbs a:hover{color:#fff}
.article{max-width:66ch;font-size:1.1rem}
.article p{margin:0 0 1.2em}
.article h2{font-size:clamp(1.4rem,2.4vw,2rem);margin:1.6em 0 .6em;letter-spacing:-.02em}
.article ul{padding-left:22px}
.prose-2{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,64px);align-items:start}
@media (max-width:820px){.prose-2{grid-template-columns:1fr}}
.aside{border-left:2px solid var(--water);padding-left:18px;display:grid;gap:10px;font-size:.95rem;color:var(--ink-2);position:sticky;top:100px}
.aside b{color:var(--ink)}
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec td{padding:10px 0;border-bottom:1px solid var(--line-soft);vertical-align:top}
.spec td:first-child{color:var(--ink-3);width:38%}
.faq details{border-top:1px solid var(--line-soft);padding:6px 0}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--aqua-ink);font-weight:700}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--ink-2);margin:0 0 14px}
.list-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
@media (max-width:820px){.list-cards{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:22px;display:grid;gap:8px;text-decoration:none;color:inherit;align-content:start;transition:transform .35s var(--ease),border-color .2s}
.card h3,.card .card-h{font-size:1.15rem;letter-spacing:-.015em;font-weight:700}
.card p{margin:0;color:var(--ink-2);font-size:.95rem}
a.card:hover{border-color:var(--aqua);transform:translateY(-3px);color:inherit}
.band{background:var(--water-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:36px;padding-bottom:36px}
.band p{margin:0;max-width:52ch;color:var(--ink-2)}
.tag-note{font-family:var(--mono);font-size:.72rem;color:var(--ink-3)}
.page-head .tag-note{color:var(--on-dark-3)}

/* footer: büyük çağrı + sütunlar */
.site-footer{background:var(--deep);color:var(--on-dark-2);padding:clamp(56px,9vh,96px) 0 24px;font-size:.92rem}
.site-footer .big{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end;margin-bottom:clamp(32px,5vh,64px)}
.site-footer .big h2{font-size:clamp(2rem,5vw,4.2rem);font-weight:600;letter-spacing:-.035em;color:#fff;max-width:16ch}
.site-footer .big .btn.primary{background:#fff;color:var(--ink)}
@media (max-width:820px){.site-footer .big{grid-template-columns:1fr}}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:clamp(16px,2vw,28px);border-top:1px solid var(--line-dark);padding-top:36px}
@media (max-width:820px){.site-footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer .foot-h{color:#fff;font-size:.78rem;margin-bottom:12px;font-family:var(--mono);font-weight:500;letter-spacing:.06em}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.site-footer a{color:var(--on-dark-2);text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer .brand{color:#fff}
.site-footer .brand-logo{height:40px}
.site-footer .nap{display:grid;gap:4px}
.site-footer .nap b{color:#fff;font-weight:600}
.site-footer .bottom{border-top:1px solid var(--line-dark);margin-top:36px;padding-top:16px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.78rem;color:var(--on-dark-3)}

/* mobil eylem barı */
.mbar{display:none}
@media (max-width:820px){
  .mbar{display:grid;grid-template-columns:1fr 1fr 1.3fr;position:fixed;left:0;right:0;bottom:0;z-index:55;background:rgba(16,23,31,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line-dark);padding-bottom:env(safe-area-inset-bottom)}
  .mbar a{padding:15px 8px;text-align:center;font-weight:600;text-decoration:none;font-size:.9rem;color:#fff}
  .mbar a.wa{color:#7EE2A8}
  .mbar a.go{background:#fff;color:var(--ink)}
  body{padding-bottom:56px}
}

/* lightbox */
dialog.lb{border:0;padding:0;background:transparent;max-width:min(1100px,94vw)}
dialog.lb::backdrop{background:rgba(4,12,14,.92);backdrop-filter:blur(6px)}
.lb .box{position:relative;display:grid;gap:10px}
.lb img{max-height:80vh;width:auto;max-width:100%;margin:0 auto;border-radius:var(--r-lg)}
.lb .cap{color:#fff;font-family:var(--mono);font-size:.78rem;text-align:center}
.lb .x{position:absolute;top:-52px;right:0;background:rgba(255,255,255,.14);color:#fff;border:0;width:44px;height:44px;border-radius:50%;font-size:1.3rem;cursor:pointer}
.lb .x:hover{background:var(--aqua)}

/* çerez / KVKK onay çubuğu (yalnızca ölçüm ID'si varsa app.js ekler) */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:60;max-width:440px;margin-left:auto;background:rgba(16,23,31,.96);color:var(--on-dark-2);border:1px solid var(--line-dark);border-radius:var(--r-lg);padding:18px 20px;box-shadow:0 18px 48px rgba(4,12,14,.45);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:.9rem;line-height:1.5}
.cookie p{margin:0 0 12px}
.cookie b{color:#fff;font-weight:600}
.cookie a{color:var(--water)}
.cookie .acts{display:flex;gap:8px;flex-wrap:wrap}
.cookie .btn{padding:10px 16px;font-size:.88rem}
.cookie .btn.primary{background:#fff;color:var(--ink)}
.cookie .btn.ghost{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
.cookie :focus-visible{outline-color:var(--aqua-2)}
@media (max-width:820px){.cookie{left:12px;right:12px;bottom:calc(56px + env(safe-area-inset-bottom) + 10px);max-width:none;padding:16px}}