/* ============================================================
   SADIKLAR · DERİNLİK — denizin katmanlarında ana sayfa
   Tek temalı (denize adanmış), Archivo + Manrope, ana site paleti.
   ============================================================ */
:root{
  --abyss:#020a12; --deep:#062131; --sea:#0a3247; --surf:#12556f;
  --foam:#4ecdc9; --foam2:#8fe9de; --amber:#dda64f; --sand:#f0e9dc;
  --sky1:#eaf4f9; --sky2:#c6e2ef; --sky3:#8fc3da;
  --fd:"Archivo",-apple-system,BlinkMacSystemFont,sans-serif;
  --fb:"Manrope",-apple-system,BlinkMacSystemFont,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --wrap:1160px; --gut:clamp(1.1rem,4vw,2.6rem);
}
*,*::before,*::after{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:var(--fb);color:#dcebf1;background:var(--abyss);
  font-size:clamp(.96rem,.9rem + .25vw,1.08rem);line-height:1.72;
  -webkit-font-smoothing:antialiased;overflow-x:clip;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--foam);color:var(--abyss)}
a:focus-visible,button:focus-visible{outline:2px solid var(--foam);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--fd);font-weight:700;line-height:1.05;letter-spacing:-.026em;font-variation-settings:"wdth" 114;color:#fff;text-wrap:balance}
p{text-wrap:pretty}
.wrap{width:min(100% - var(--gut)*2,var(--wrap));margin-inline:auto}

/* ---------- DÜNYA: sabit arka plan katmanları ----------
   DİKKAT: html'e asla background verme — body arka planı köke taşınır,
   verilirse z-index:-1'deki bu katman görünmez olur. */
.world{position:fixed;inset:0;z-index:-1;pointer-events:none}
.bg{position:absolute;inset:0;opacity:0;transition:none;will-change:opacity}
.bg-0{background:linear-gradient(180deg,var(--sky1) 0%,var(--sky2) 52%,var(--sky3) 100%)}
.bg-1{background:linear-gradient(180deg,#1173a0,#12556f 55%,#0d3f56)}
.bg-2{background:linear-gradient(180deg,#0c3c53,var(--sea) 50%,#083041)}
.bg-3{background:linear-gradient(180deg,#07293a,var(--deep) 55%,#04141f)}
.bg-4{background:linear-gradient(180deg,#031019,var(--abyss) 60%,#010508)}

#sea{display:none}
.vignette{position:absolute;inset:0;background:radial-gradient(120% 90% at 50% 40%,transparent 55%,rgba(1,5,10,.5))}

/* ---------- ÜST BAR ---------- */
.top{
  position:fixed;inset:0 0 auto;z-index:80;height:78px;display:flex;align-items:center;
  background:linear-gradient(rgba(2,10,18,.62),transparent);
  transition:background .4s var(--ease);
}
.top.scrolled{
  background:rgba(2,10,18,.78);
  -webkit-backdrop-filter:blur(14px) saturate(150%);backdrop-filter:blur(14px) saturate(150%);
  box-shadow:0 1px 0 rgba(143,233,222,.12);
}
.top .wrap{display:flex;align-items:center;gap:clamp(1.4rem,3vw,3rem);width:min(100% - var(--gut)*2,1400px)}
.brand{flex:none;display:block}
.brand__chip{
  display:flex;align-items:center;background:#fff;border-radius:10px;
  padding:.5rem .8rem;box-shadow:0 6px 24px -10px rgba(2,10,18,.6);
  transition:transform .3s var(--ease);
}
.brand:hover .brand__chip{transform:translateY(-2px)}
.brand__chip img{height:30px;width:auto;display:block}
.nav{display:flex;gap:clamp(1rem,2.2vw,2rem);margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{
  position:relative;font-size:.86rem;font-weight:600;color:rgba(232,242,246,.86);
  white-space:nowrap;padding:.5rem 0;transition:color .25s;
}
.nav a::after{content:"";position:absolute;left:0;bottom:.2rem;height:2px;width:100%;background:var(--foam);transform:scaleX(0);transform-origin:100% 50%;transition:transform .4s var(--ease)}
.nav a:hover{color:#fff}
.nav a:hover::after{transform:scaleX(1);transform-origin:0 50%}
.top .cta{
  flex:none;font-family:var(--fd);font-size:.84rem;font-weight:700;letter-spacing:.03em;
  color:var(--abyss);background:var(--foam);padding:.62rem 1.2rem;border-radius:99px;
  transition:.3s var(--ease);font-variant-numeric:tabular-nums;
}
.top .cta:hover{background:var(--foam2);transform:translateY(-2px)}
@media (max-width:900px){.top .cta{display:none}}
@media (max-width:640px){.nav{display:none}}

/* ---------- DERİNLİK GÖSTERGESİ ---------- */
.hud{
  position:fixed;right:clamp(.7rem,2.2vw,1.8rem);top:50%;transform:translateY(-50%);z-index:70;
  display:grid;gap:1rem;justify-items:end;text-align:right;
}
.hud__m{
  font-family:var(--fd);font-weight:750;font-size:1.05rem;letter-spacing:.06em;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.1;
  text-shadow:0 1px 10px rgba(2,10,18,.7);
}
.hud__m small{display:block;font-family:var(--fb);font-size:.56rem;font-weight:800;letter-spacing:.3em;color:var(--foam);opacity:.9}
.hud nav{display:grid;gap:.75rem;justify-items:end;border-right:2px solid rgba(143,233,222,.3);padding-right:.7rem}
.hud nav a{display:flex;align-items:center;gap:.55rem;flex-direction:row;padding:.35rem 0}
.hud nav i{width:9px;height:9px;border-radius:50%;border:1.5px solid rgba(255,255,255,.6);transition:.35s var(--ease);flex:none}
.hud nav span{
  font-size:.66rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:#fff;
  opacity:0;transform:translateX(6px);transition:.35s var(--ease);text-shadow:0 1px 8px rgba(2,10,18,.8);
}
.hud nav a:hover span,.hud nav a:focus-visible span{opacity:1;transform:none}
.hud nav a.on i{background:var(--foam);border-color:var(--foam);box-shadow:0 0 0 4px rgba(78,205,201,.2)}
.hud nav a.on span{opacity:1;transform:none;color:var(--foam2)}
.hud.on-sky .hud__m{color:#07151d;text-shadow:none}
.hud.on-sky .hud__m small{color:#0d5875}
.hud.on-sky nav i{border-color:rgba(7,21,29,.5)}
.hud.on-sky nav span{color:#07151d;text-shadow:none}
@media (max-width:900px){.hud nav{display:none}.hud{top:auto;bottom:1rem;transform:none;pointer-events:none}
.seabed{padding-bottom:4rem}}

/* ---------- SİNEMA PLAKALARI ---------- */
.act--film{position:relative;padding:0;background:var(--abyss)}
.act--film .vbg{
  position:sticky;top:0;height:100vh;height:100svh;z-index:0;overflow:hidden;
  background:var(--deep);
}
.panels{position:relative;z-index:2;margin-top:-100vh;margin-top:-100svh}
.panel{min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:clamp(4rem,10vh,7rem) 0}
.panel .wrap{width:min(100% - var(--gut)*2,var(--wrap))}
.panel--c .wrap{display:flex;justify-content:center;text-align:center}
.panel--c .msg .chip{margin-inline:auto}
.panel--r .wrap{display:flex;justify-content:flex-end}
.msg{max-width:56ch;padding:1.8rem 2rem;border-radius:22px;
  background:linear-gradient(140deg,rgba(2,10,18,.6),rgba(2,10,18,.34));
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid rgba(143,233,222,.14);}
.disp--s{font-size:clamp(2rem,4.6vw,3.6rem)}
.msg__t{margin-top:1.1rem;color:rgba(228,240,244,.9);line-height:1.7;font-size:clamp(.98rem,1.1vw,1.1rem)}
.vbg video{width:100%;height:100%;object-fit:cover;display:block}
.scrim{position:absolute;inset:0;display:block}
.scrim--mid{background:
  linear-gradient(180deg,rgba(2,10,18,.9) 0%,transparent 18%),
  linear-gradient(100deg,rgba(2,10,18,.72) 0%,rgba(2,10,18,.38) 45%,rgba(2,10,18,.12) 75%),
  linear-gradient(rgba(2,10,18,.28),rgba(2,10,18,.55))}
.scrim--deep{background:
  linear-gradient(180deg,rgba(2,10,18,.9) 0%,transparent 18%),
  linear-gradient(100deg,rgba(2,10,18,.8) 0%,rgba(2,10,18,.5) 50%,rgba(2,10,18,.25) 80%),
  linear-gradient(rgba(2,10,18,.35),rgba(2,10,18,.6))}
.scrim--abyss{background:linear-gradient(rgba(2,10,18,.72),rgba(2,10,18,.86)),radial-gradient(70% 60% at 50% 40%,transparent,rgba(1,5,8,.5))}
.act--film h2,.act--film .lead{text-shadow:0 2px 24px rgba(2,10,18,.65)}
@media (prefers-reduced-motion:reduce){.vbg video{display:none}}

/* ---------- TİPOGRAFİ BLOKLARI ---------- */
.chip{
  display:inline-flex;align-items:center;gap:.7rem;padding:.5rem .95rem;border-radius:99px;
  background:rgba(2,10,18,.42);border:1px solid rgba(143,233,222,.28);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.chip b{font-family:var(--fd);font-weight:750;font-size:.86rem;color:var(--foam2);letter-spacing:.04em;font-variant-numeric:tabular-nums}
.chip span{font-size:.68rem;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:rgba(232,242,246,.8)}
.disp{
  font-family:var(--fd);font-weight:750;font-variation-settings:"wdth" 116;
  font-size:clamp(2.5rem,6.4vw,5.2rem);line-height:1.02;letter-spacing:-.026em;color:#fff;
  margin-top:1.6rem;text-shadow:0 4px 44px rgba(2,10,18,.6);text-wrap:balance;
}
.disp em{font-style:normal;color:var(--foam2)}
.disp-sub{
  margin-top:1.4rem;max-width:44ch;font-size:clamp(1.02rem,1.3vw,1.22rem);line-height:1.6;
  color:rgba(228,240,244,.88);text-shadow:0 2px 18px rgba(2,10,18,.6);
}
.pcol{
  max-width:58ch;margin-bottom:clamp(1.8rem,4vh,2.8rem);
  padding:1.5rem 1.8rem;margin-left:-1.8rem;border-radius:20px;
  background:linear-gradient(100deg,rgba(2,10,18,.55),rgba(2,10,18,.22) 65%,transparent);
}
.pcol h2,.split2 h2{font-size:clamp(1.7rem,3.6vw,2.7rem);color:#fff;text-shadow:0 2px 24px rgba(2,10,18,.65)}
.pcol .lead,.split2 .lead{margin-top:1rem;color:rgba(226,238,243,.86);font-size:clamp(1rem,1.15vw,1.14rem);text-shadow:0 2px 16px rgba(2,10,18,.6)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(.9rem,1.8vw,1.4rem)}
.fact{
  padding:1.4rem 1.5rem;border-radius:18px;
  background:rgba(3,16,25,.55);border:1px solid rgba(143,233,222,.18);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.fact b{display:block;font-family:var(--fd);font-weight:700;font-size:1.02rem;color:var(--foam2);letter-spacing:.01em}
.fact span{display:block;margin-top:.45rem;font-size:.88rem;line-height:1.55;color:rgba(226,238,243,.78)}
.split2{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.8rem,4vw,3.6rem);align-items:start;
  padding:1.6rem 1.8rem;margin-inline:-1.8rem;border-radius:22px;
  background:linear-gradient(100deg,rgba(2,10,18,.5),rgba(2,10,18,.2) 70%,transparent);}
.split2--center{align-items:center}
.split2>*{min-width:0}
.foot-note{margin-top:1.6rem;font-size:.92rem;color:rgba(226,238,243,.72)}
.foot-note a{color:var(--foam2);text-decoration:underline;text-underline-offset:3px}
.cta-row{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.8rem}
.photo{position:relative;display:block}
.photo__cap{
  position:absolute;left:1rem;bottom:1rem;padding:.4rem .8rem;border-radius:8px;
  background:rgba(2,10,18,.6);font-size:.7rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:rgba(232,242,246,.85);
}
@media (max-width:860px){.facts{grid-template-columns:1fr}.split2{grid-template-columns:1fr}}

/* ---------- SAHNELER ---------- */
.act{position:relative;padding:clamp(5rem,12vh,9rem) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;font-size:.72rem;font-weight:800;
  letter-spacing:.24em;text-transform:uppercase;color:var(--foam);font-variant-numeric:tabular-nums;
}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor;opacity:.6}
.act h2{font-size:clamp(1.9rem,4.6vw,3.2rem);margin:1rem 0 1.1rem}
.act .lead{font-size:clamp(1.02rem,1vw + .8rem,1.2rem);color:rgba(223,238,244,.88);max-width:56ch}

/* giriş: tam sayfa fotoğraf hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;padding:0 0 clamp(3rem,9vh,6rem)}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:center 38%}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(2,10,18,.5) 0%,rgba(2,10,18,.06) 28%,rgba(2,10,18,.34) 52%,rgba(2,10,18,.82) 74%,var(--abyss) 90%),
    linear-gradient(100deg,rgba(2,10,18,.55) 0%,rgba(2,10,18,.2) 45%,transparent 70%);
}
.hero__in{position:relative;z-index:2}
.hero h1{color:#fff;font-size:clamp(3rem,8vw,6rem);letter-spacing:-.028em;font-weight:750;font-variation-settings:"wdth" 116;line-height:1;margin-top:1.4rem;text-shadow:0 4px 40px rgba(2,10,18,.5)}
.hero .lead{color:rgba(232,242,246,.92);max-width:50ch;margin-top:1.3rem;font-size:clamp(1.02rem,1.2vw,1.2rem);text-shadow:0 2px 18px rgba(2,10,18,.55)}
.hero__cta{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:2.2rem}
.hero__cap{
  position:absolute;right:clamp(1rem,3vw,2.4rem);bottom:1.4rem;z-index:2;
  font-size:.7rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(232,242,246,.66);text-shadow:0 1px 10px rgba(2,10,18,.7);
}
@media (max-width:820px){.hero__cap{display:none}}
.btn{
  display:inline-flex;align-items:center;gap:.6rem;padding:1rem 1.9rem;border-radius:99px;
  font-size:.95rem;font-weight:800;letter-spacing:.01em;transition:.4s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-dive{background:#07151d;color:#fff;box-shadow:0 18px 40px -18px rgba(7,21,29,.6)}
.btn-dive:hover{background:var(--surf);transform:translateY(-3px)}
.btn-dive svg{transition:transform .4s var(--ease)}
.btn-dive:hover svg{transform:translateY(3px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{border-color:var(--foam);color:var(--foam2)}
.a0__cta{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:2rem}



/* cam kartlar */
.glass{
  background:rgba(4,22,33,.5);border:1px solid rgba(143,233,222,.16);border-radius:20px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:clamp(1.3rem,2.5vw,2rem);
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.6rem,4vw,3.4rem);align-items:center}
.split>*{min-width:0}
.a0__grid>*{min-width:0}
.photo{border-radius:20px;overflow:hidden;background:var(--deep);box-shadow:0 34px 80px -40px rgba(1,8,14,.9)}
.photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.photo--tall img{aspect-ratio:3/4}
.note{display:flex;gap:.7rem;align-items:flex-start;margin-top:1.1rem;font-size:.92rem;color:rgba(223,238,244,.8)}
.note svg{width:17px;height:17px;color:var(--foam);flex:none;margin-top:.2rem}

/* şamandıra şeridi */
.buoys{display:flex;gap:clamp(1.4rem,4vw,3rem);margin-top:2.2rem;opacity:.9}
.buoys i{
  width:14px;height:14px;border-radius:50%;background:#fff;flex:none;position:relative;
  box-shadow:0 0 0 3px rgba(255,255,255,.15);animation:bob 3.4s ease-in-out infinite;
}
.buoys i::after{content:"";position:absolute;top:100%;left:50%;width:2px;height:46px;background:linear-gradient(rgba(255,255,255,.4),transparent);transform:translateX(-50%)}
.buoys i:nth-child(2n){animation-delay:-1.2s}.buoys i:nth-child(3n){animation-delay:-2.1s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(7px)}}

/* tür kartları */
.species{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem);margin-top:2.4rem}
.sp{
  position:relative;border-radius:20px;overflow:hidden;background:var(--deep);
  border:1px solid rgba(143,233,222,.14);transition:.5s var(--ease);display:block;
}
.sp:hover{transform:translateY(-8px);border-color:rgba(143,233,222,.45);box-shadow:0 30px 70px -30px rgba(1,8,14,.9)}
.sp img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform 1s var(--ease)}
.sp:hover img{transform:scale(1.06)}
.sp__b{padding:1.1rem 1.3rem 1.3rem}
.sp__b em{font-style:italic;font-size:.72rem;letter-spacing:.1em;color:var(--foam);text-transform:uppercase}
.sp__b h3{font-size:1.15rem;margin:.3rem 0 .2rem}
.sp__b p{font-size:.85rem;color:rgba(223,238,244,.7)}
.sp__go{
  position:absolute;top:1rem;right:1rem;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;background:rgba(2,10,18,.55);border:1px solid rgba(255,255,255,.25);
  opacity:0;transform:scale(.7);transition:.4s var(--ease);
}
.sp:hover .sp__go{opacity:1;transform:none}
.sp__go svg{width:15px;height:15px;stroke:#fff}
.school-note{margin-top:1.6rem;font-size:.9rem;color:rgba(223,238,244,.65);display:flex;align-items:center;gap:.6rem}
.school-note svg{width:22px;height:22px;color:var(--foam);flex:none}

/* salyangoz sahnesi */
.minis{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(.8rem,1.6vw,1.2rem);margin-top:2.2rem}
.mini{border-radius:16px;overflow:hidden;background:var(--deep);border:1px solid rgba(143,233,222,.12);transition:.45s var(--ease);display:block}
.mini:hover{transform:translateY(-6px);border-color:rgba(143,233,222,.4)}
.mini img{aspect-ratio:1;object-fit:cover;width:100%}
.mini b{display:block;padding:.7rem .9rem;font-size:.8rem;font-weight:700;color:#e7f3f6}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.6rem}
.stat{border-top:1px solid rgba(143,233,222,.25);padding-top:1rem}
.stat b{display:block;font-family:var(--fd);font-weight:750;font-size:clamp(1.9rem,3.6vw,2.9rem);color:#fff;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat b small{font-size:.45em;color:var(--foam);margin-left:.15em}
.stat span{font-size:.8rem;color:rgba(223,238,244,.65)}

/* dip sahnesi */
.a4{padding-bottom:clamp(3rem,7vh,5rem)}
.a4 .lead{color:rgba(210,230,238,.8)}
.cta{
  margin-top:2.6rem;border-radius:24px;padding:clamp(1.8rem,4vw,2.8rem);
  background:linear-gradient(140deg,rgba(10,50,71,.75),rgba(6,33,49,.65));
  border:1px solid rgba(143,233,222,.22);
  display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.cta h3{font-size:clamp(1.4rem,3vw,2rem);max-width:18ch}
.cta p{color:rgba(223,238,244,.75);margin-top:.5rem;font-size:.95rem;max-width:44ch}
.cta__b{display:flex;gap:.8rem;flex-wrap:wrap}
.btn-foam{background:var(--foam);color:var(--abyss)}
.btn-foam:hover{background:var(--foam2);transform:translateY(-3px)}
.glow{color:var(--foam2)}

/* dip / footer */
.seabed{position:relative;padding:clamp(3rem,7vh,5rem) 0 2.2rem;text-align:center}
.seabed::before{
  content:"";position:absolute;inset:auto 0 0;height:140px;pointer-events:none;
  background:radial-gradient(70% 120px at 50% 100%,rgba(20,40,50,.8),transparent);
}
.surface-btn{
  display:inline-flex;flex-direction:column;align-items:center;gap:.6rem;color:var(--foam2);
  font-size:.72rem;font-weight:800;letter-spacing:.26em;text-transform:uppercase;
}
.surface-btn i{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  border:1.5px solid rgba(143,233,222,.5);transition:.4s var(--ease);
}
.surface-btn:hover i{background:var(--foam);border-color:var(--foam);color:var(--abyss);transform:translateY(-5px)}
.surface-btn svg{width:18px;height:18px}
.seabed p{margin-top:2rem;font-size:.76rem;color:rgba(223,238,244,.6)}
.seabed p a{text-decoration:underline;text-underline-offset:3px}
.seabed a:hover{color:var(--foam2)}

/* görünürlük animasyonu (deterministik süpürme ile açılır) */
.rv{transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
.js .rv{opacity:0;transform:translateY(30px)}
.js .rv.in{opacity:1;transform:none}

@media (max-width:900px){
  .a0__grid,.split{grid-template-columns:1fr}
  .species{grid-template-columns:1fr 1fr}
  .minis{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr}
  .a0__panel{transform:none}
}
@media (max-width:560px){.species{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rays,.caustics,.waterline path,.buoys i{animation:none!important}
  .rv,.js .rv{opacity:1!important;transform:none!important;transition:none!important}
  .btn:hover{transform:none}
}

/* ---------- BEYAZ BÖLÜMLER ---------- */
.light{position:relative;z-index:3;background:#f7f9fa;color:#2c4048;padding:clamp(4.5rem,9vw,7.5rem) 0}
.ltag{font-size:.7rem;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:#14506b}
.slogan{text-align:center;background:#fbfcfd}
.slogan .ltag::after{display:none}
.slogan__t{
  font-family:var(--fd);font-weight:780;font-variation-settings:"wdth" 114;
  font-size:clamp(2.2rem,5.6vw,4.4rem);line-height:1.06;letter-spacing:-.025em;
  color:#0e2230;max-width:22ch;margin:1.4rem auto 0;text-wrap:balance;
}
.slogan__t em{font-style:normal;color:#1173a0}
.slogan__s{margin:1.2rem auto 0;max-width:52ch;color:#5b7480;font-size:clamp(1rem,1.2vw,1.15rem)}
.light h2{
  font-family:var(--fd);font-weight:720;font-variation-settings:"wdth" 112;
  font-size:clamp(1.7rem,3.4vw,2.6rem);letter-spacing:-.02em;color:#0e2230;margin-top:.9rem;
}
.plants{background:#f7f9fa;padding-bottom:clamp(3rem,6vw,5rem)}
.plants__head{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:2rem}
.slider__nav{display:flex;gap:.6rem}
.snav{
  width:46px;height:46px;border-radius:50%;border:1px solid #d5dee2;background:#fff;
  display:grid;place-items:center;cursor:pointer;color:#14506b;transition:.3s var(--ease);
}
.snav:hover{background:#14506b;border-color:#14506b;color:#fff}
.snav svg{width:18px;height:18px}
.slider{
  display:flex;gap:clamp(1rem,2vw,1.6rem);overflow-x:auto;scroll-snap-type:x mandatory;
  padding:0 max(var(--gut),calc((100% - 1400px)/2)) 1rem;scroll-padding-inline:max(var(--gut),calc((100% - 1400px)/2));
  scrollbar-width:none;scroll-behavior:smooth;
}
.slider::-webkit-scrollbar{display:none}
.slide{flex:0 0 clamp(300px,46vw,620px);scroll-snap-align:start;margin:0}
.slide__ph{aspect-ratio:16/10;border-radius:18px;overflow:hidden;background:#e8eef0}
.slide__ph img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.slide:hover .slide__ph img{transform:scale(1.04)}
.slide figcaption{padding:1.1rem .4rem 0;position:relative}
.slide__stat{
  position:absolute;top:-2.7rem;left:1rem;padding:.45rem .9rem;border-radius:99px;
  background:#0e2230;color:#8fe9de;font-family:var(--fd);font-weight:700;font-size:.8rem;
  letter-spacing:.04em;font-variant-numeric:tabular-nums;box-shadow:0 10px 26px -12px rgba(2,10,18,.5);
}
.slide b{display:block;font-family:var(--fd);font-weight:720;font-size:1.08rem;color:#0e2230}
.slide p{margin-top:.3rem;font-size:.9rem;color:#5b7480;max-width:46ch}

/* beyazdan denize giriş şeridi */
.divein{
  position:relative;z-index:2;height:34vh;min-height:220px;display:grid;place-items:center;
  background:linear-gradient(180deg,#f7f9fa 0%,#bcd9e6 22%,#1173a0 52%,#0a3247 78%,#020a12 100%);
}
.divein span{
  font-size:.72rem;font-weight:800;letter-spacing:.3em;text-transform:uppercase;
  color:rgba(255,255,255,.92);text-shadow:0 1px 12px rgba(2,10,18,.4);
}

/* ---------- AÇIK SU · derinlik kataloğu ---------- */
.acik{position:relative;padding:clamp(4rem,9vh,7rem) 0 clamp(5rem,10vh,8rem)}
.acik__head{max-width:60ch;margin-bottom:clamp(3rem,7vh,5rem)}
.drow{display:flex;align-items:center;gap:clamp(1rem,2.4vw,2rem);margin-top:clamp(2.6rem,6vh,4.5rem)}
.drow--r{flex-direction:row-reverse}
.drow__m{display:flex;align-items:center;gap:.9rem;flex:none}
.drow--r .drow__m{flex-direction:row-reverse}
.drow__m b{
  font-family:var(--fd);font-weight:750;font-size:clamp(1.1rem,1.8vw,1.5rem);color:var(--foam2);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;text-shadow:0 2px 14px rgba(2,10,18,.7);
}
.drow__m i{display:block;width:clamp(30px,6vw,90px);height:1px;background:linear-gradient(90deg,rgba(143,233,222,.55),transparent)}
.drow--r .drow__m i{background:linear-gradient(270deg,rgba(143,233,222,.55),transparent)}
.dcard{
  position:relative;display:flex;align-items:stretch;gap:0;max-width:520px;flex:1;
  border-radius:18px;overflow:hidden;background:rgba(3,16,25,.62);
  border:1px solid rgba(143,233,222,.16);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:.45s var(--ease);
}
.dcard:hover{transform:translateY(-5px);border-color:rgba(143,233,222,.45);box-shadow:0 26px 60px -28px rgba(1,8,14,.9)}
.dcard img{width:clamp(120px,16vw,190px);object-fit:cover;flex:none}
.dcard__b{padding:1.1rem 1.3rem;min-width:0;align-self:center}
.dcard__b em{font-style:italic;font-size:.7rem;letter-spacing:.1em;color:var(--foam);text-transform:uppercase}
.dcard__b h3{font-size:1.15rem;color:#fff;margin:.25rem 0 .2rem;font-variation-settings:"wdth" 110}
.dcard__b p{font-size:.85rem;color:rgba(226,238,243,.72)}
.dcard__x{margin-top:.55rem;font-size:.85rem;color:rgba(226,238,243,.85)}
.dcard__go{
  position:absolute;top:.9rem;right:.9rem;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;background:rgba(2,10,18,.5);border:1px solid rgba(255,255,255,.22);
  opacity:0;transform:scale(.7);transition:.35s var(--ease);
}
.dcard:hover .dcard__go{opacity:1;transform:none}
.dcard__go svg{width:14px;height:14px;stroke:#fff}
.dcard--big{max-width:640px}
.dcard--big img{width:clamp(150px,20vw,240px)}
.dcard--big .dcard__b h3{font-size:1.35rem}
.species--4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.9rem,1.6vw,1.3rem)}
.sp__m{
  position:absolute;top:.8rem;left:.8rem;padding:.3rem .7rem;border-radius:99px;
  background:rgba(2,10,18,.66);border:1px solid rgba(143,233,222,.3);
  font-family:var(--fd);font-weight:750;font-size:.74rem;color:var(--foam2);
  font-variant-numeric:tabular-nums;letter-spacing:.03em;
}
@media (max-width:1060px){.species--4{grid-template-columns:1fr 1fr}}
@media (max-width:760px){
  .drow,.drow--r{flex-direction:column;align-items:flex-start;gap:.8rem}
  .drow--r .drow__m{flex-direction:row}
  .dcard,.dcard--big{max-width:none;width:100%}
  .slide{flex-basis:82vw}
}
@media (max-width:560px){.species--4{grid-template-columns:1fr}}