/* =========================================================
   PuanKarnem — Ana Stil Dosyası
   Tema: "Optik Form / Sonuç Karnesi"
   ========================================================= */

/* Fontlar artık includes/header.php içinde preconnect'li <link> ile yükleniyor (performans için) */

:root{
  --bg:#ffffff;
  --bg-soft:#f6f7fb;
  --surface:#ffffff;
  --surface-2:#f1f3f9;
  --border:#e3e6ee;
  --ink:#141826;
  --ink-soft:#565c6f;
  --ink-faint:#6b7280;
  --brand:#2451f5;
  --brand-ink:#ffffff;
  --brand-soft:#eaefff;
  --good:#0ea36f;
  --good-soft:#e6f8f0;
  --bad:#e0334f;
  --bad-soft:#fdeaee;
  --ring: 0 0 0 3px rgba(36,81,245,.22);
  --shadow-sm: 0 1px 2px rgba(20,24,38,.06);
  --shadow-md: 0 8px 24px rgba(20,24,38,.08);
  --shadow-lg: 0 16px 48px rgba(20,24,38,.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-display:'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body:'Inter', system-ui, sans-serif;
  --font-mono:'JetBrains Mono', ui-monospace, monospace;
}

html[data-theme="dark"]{
  --bg:#0b0e17;
  --bg-soft:#0f1320;
  --surface:#131829;
  --surface-2:#182036;
  --border:#232c47;
  --ink:#eef0f8;
  --ink-soft:#aab0c6;
  --ink-faint:#6b7290;
  --brand:#5b7dff;
  --brand-ink:#0b0e17;
  --brand-soft:#1a2140;
  --good:#2fd497;
  --good-soft:#0e2a24;
  --bad:#ff5d76;
  --bad-soft:#301521;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.45);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease, color .25s ease;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-0.01em;
  margin:0 0 .5em;
  color:var(--ink);
}
p{margin:0 0 1em;color:var(--ink-soft);}
.container{max-width:1120px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important; transition-duration:.01ms !important;}
}
:focus-visible{outline:3px solid var(--brand); outline-offset:2px; border-radius:4px;}

/* ---------- Optik form bubble deseni (dekoratif) ---------- */
.bubble-field{
  position:absolute; inset:0; overflow:hidden; pointer-events:none;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 85%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 85%);
}
.bubble-field svg{width:100%;height:100%;}
.bubble-field circle{fill:none; stroke:var(--border); stroke-width:1.4;}
.bubble-field circle.filled{fill:var(--brand); fill-opacity:.14; stroke:var(--brand); stroke-opacity:.4;}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.site-header .bar{
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.brand{display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:700; font-size:1.15rem;}
.brand .mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--brand); color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono); font-weight:700; font-size:.8rem;
}
nav.main-nav{display:flex; align-items:center; gap:6px;}
nav.main-nav a{
  padding:9px 14px; border-radius:10px; font-weight:600; font-size:.92rem; color:var(--ink-soft);
  transition:background .15s, color .15s;
}
nav.main-nav a:hover, nav.main-nav a.active{background:var(--surface-2); color:var(--ink);}
.theme-toggle{
  display:flex; align-items:center; justify-content:center;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border); background:var(--surface);
  cursor:pointer; color:var(--ink);
}
.theme-toggle svg{width:19px;height:19px;}
.theme-toggle .sun{display:none;}
html[data-theme="dark"] .theme-toggle .moon{display:none;}
html[data-theme="dark"] .theme-toggle .sun{display:block;}
.nav-toggle{display:none;}
.nav-overlay{display:none;}
html.nav-open{overflow:hidden;}
body.nav-open{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{position:relative; padding:76px 0 64px; overflow:hidden; border-bottom:1px solid var(--border);}
.hero .eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:.78rem; font-weight:600; letter-spacing:.04em;
  color:var(--brand); background:var(--brand-soft); padding:6px 12px; border-radius:100px; margin-bottom:22px;
}
.hero h1{font-size:clamp(2.1rem, 4.2vw, 3.4rem); max-width:16ch; line-height:1.06;}
.hero .lead{font-size:1.14rem; max-width:52ch; margin-top:14px;}
.hero-actions{display:flex; gap:12px; margin-top:30px; flex-wrap:wrap;}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 22px; border-radius:12px; font-weight:600; font-size:.95rem;
  cursor:pointer; border:1px solid transparent; transition:transform .12s ease, box-shadow .12s ease, background .15s;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand); color:var(--brand-ink); box-shadow:var(--shadow-sm);}
.btn-primary:hover{box-shadow:var(--shadow-md);}
.btn-ghost{background:var(--surface); color:var(--ink); border-color:var(--border);}
.btn-ghost:hover{background:var(--surface-2);}
.btn-sm{padding:9px 14px;font-size:.85rem;border-radius:9px;}

/* ---------- Kart ızgarası (index) ---------- */
.tool-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; padding:64px 0;}
.tool-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:28px; box-shadow:var(--shadow-sm); position:relative; overflow:hidden;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s;
}
.tool-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:color-mix(in srgb, var(--brand) 35%, var(--border));}
.tool-card .tag{
  font-family:var(--font-mono); font-size:.72rem; font-weight:700; letter-spacing:.06em;
  color:var(--brand); text-transform:uppercase; margin-bottom:14px; display:block;
}
.tool-card h3{font-size:1.32rem; margin-bottom:8px;}
.tool-card p{font-size:.94rem; margin-bottom:20px;}
.tool-card .go{
  display:inline-flex; align-items:center; gap:6px; font-weight:700; font-size:.88rem; color:var(--ink);
}
.tool-card .go svg{width:15px;height:15px; transition:transform .15s;}
.tool-card:hover .go svg{transform:translateX(3px);}
.tool-card .num{
  position:absolute; top:18px; right:22px; font-family:var(--font-mono); font-size:2.6rem; font-weight:700;
  color:var(--surface-2); z-index:0; -webkit-text-stroke:1px var(--border); color:transparent;
}

section.info{padding:56px 0;}
section.info h2{font-size:1.7rem;}
.section-eyebrow{
  font-family:var(--font-mono); font-size:.78rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-faint); margin-bottom:10px; display:block;
}
.two-col{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:start;}
.stat-strip{display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:28px;}
.stat-box{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md); padding:18px;}
.stat-box b{display:block; font-family:var(--font-mono); font-size:1.5rem; color:var(--brand);}
.stat-box span{font-size:.82rem; color:var(--ink-faint);}

/* ---------- Hesap makinesi (form) ---------- */
.calc-wrap{padding:44px 0 80px;}
.calc-head{max-width:70ch; margin-bottom:32px;}
.calc-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:28px; align-items:start;}
.card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:26px; box-shadow:var(--shadow-sm);
}
.card h2{font-size:1.15rem; margin-bottom:4px;}
.card .hint{font-size:.85rem; color:var(--ink-faint); margin-bottom:20px;}

.subject-row{
  display:grid; grid-template-columns:1.6fr .8fr .8fr .8fr auto; gap:10px; align-items:center;
  padding:11px 0; border-bottom:1px dashed var(--border);
}
.subject-row:last-of-type{border-bottom:none;}
.subject-row .name{font-weight:600; font-size:.9rem;}
.subject-row .name small{display:block; font-weight:500; color:var(--ink-faint); font-size:.74rem; font-family:var(--font-mono);}
.subject-row .coef{
  font-family:var(--font-mono); font-size:.72rem; font-weight:700; color:var(--brand);
  background:var(--brand-soft); padding:3px 8px; border-radius:6px; justify-self:center; white-space:nowrap;
}
label.field-label{
  display:block; font-size:.7rem; font-weight:700; color:var(--ink-faint); text-transform:uppercase;
  letter-spacing:.04em; margin-bottom:4px; font-family:var(--font-mono);
}
input[type=number], input[type=text], select{
  width:100%; padding:9px 10px; border-radius:8px; border:1px solid var(--border);
  background:var(--bg-soft); color:var(--ink); font-family:var(--font-mono); font-size:.92rem; font-weight:600;
  transition:border-color .15s, box-shadow .15s;
}
input[type=number]:focus, input[type=text]:focus, select:focus{
  border-color:var(--brand); box-shadow:var(--ring); outline:none;
}
input[type=number]::-webkit-inner-spin-button{opacity:.6;}

.head-row{display:grid; grid-template-columns:1.6fr .8fr .8fr .8fr auto; gap:10px; padding-bottom:8px; margin-bottom:2px;}
.head-row span{font-size:.68rem; font-weight:700; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.05em; text-align:center;}
.head-row span:first-child{text-align:left;}

.form-actions{display:flex; gap:10px; margin-top:22px; flex-wrap:wrap;}

.result-card{position:sticky; top:88px;}
.score-display{
  text-align:center; padding:22px 10px 10px; border-radius:var(--radius-md);
  background:linear-gradient(180deg, var(--brand-soft), transparent);
  margin-bottom:18px;
}
.score-display .score-num{
  font-family:var(--font-mono); font-weight:700; font-size:3.1rem; color:var(--brand); line-height:1;
}
.score-display .score-label{font-size:.78rem; color:var(--ink-faint); margin-top:6px; font-weight:600;}
.result-rows{display:flex; flex-direction:column; gap:0;}
.result-row{
  display:flex; justify-content:space-between; align-items:center;
  padding:11px 2px; border-bottom:1px solid var(--border); font-size:.88rem;
}
.result-row:last-child{border-bottom:none;}
.result-row .k{color:var(--ink-soft); font-weight:500;}
.result-row .v{font-family:var(--font-mono); font-weight:700;}
.pct-bar-wrap{margin-top:16px;}
.pct-bar{height:10px; border-radius:100px; background:var(--surface-2); overflow:hidden; border:1px solid var(--border);}
.pct-bar > i{display:block; height:100%; background:linear-gradient(90deg, var(--brand), var(--good)); border-radius:100px; width:0%; transition:width .5s ease;}
.disclaimer{
  margin-top:18px; font-size:.78rem; color:var(--ink-faint); background:var(--bg-soft);
  border:1px solid var(--border); border-radius:10px; padding:12px 14px;
}

.accordion{border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; margin-top:14px;}
.accordion details{border-bottom:1px solid var(--border);}
.accordion details:last-child{border-bottom:none;}
.accordion summary{
  padding:14px 16px; cursor:pointer; font-weight:600; font-size:.92rem; list-style:none;
  display:flex; justify-content:space-between; align-items:center; background:var(--surface);
}
.accordion summary::-webkit-details-marker{display:none;}
.accordion summary::after{content:"+"; font-family:var(--font-mono); color:var(--ink-faint); font-size:1.1rem;}
.accordion details[open] summary::after{content:"–";}
.accordion .body{padding:0 16px 16px; font-size:.9rem; color:var(--ink-soft);}
.accordion .body ul{padding-left:20px; margin:0;}
.accordion .body li{margin-bottom:6px;}

.crumbs{font-size:.82rem; color:var(--ink-faint); margin-bottom:18px;}
.crumbs a{color:var(--ink-soft); font-weight:600;}
.crumbs a:hover{color:var(--brand);}

/* ---------- QR reklam bandı ---------- */
.qr-banner{
  margin:0 0 0; padding:34px 0;
  background:var(--surface-2); border-top:1px solid var(--border); border-bottom:1px solid var(--border);
}
.qr-banner .box{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:22px 26px; box-shadow:var(--shadow-sm); flex-wrap:wrap;
}
.qr-banner .left{display:flex; align-items:center; gap:16px;}
.qr-banner .qr-icon{
  width:52px;height:52px; border-radius:12px; background:var(--brand-soft); color:var(--brand);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.qr-banner .qr-icon svg{width:26px;height:26px;}
.qr-banner h4{font-size:1.02rem; margin-bottom:2px;}
.qr-banner p{font-size:.85rem; margin:0; color:var(--ink-faint);}

/* ---------- Footer ---------- */
footer.site-footer{padding:48px 0 30px; border-top:1px solid var(--border); background:var(--bg-soft);}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:32px; margin-bottom:32px;}
.footer-grid h5{font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint); margin-bottom:14px; font-family:var(--font-mono);}
.footer-grid ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:9px;}
.footer-grid a{color:var(--ink-soft); font-size:.9rem;}
.footer-grid a:hover{color:var(--brand);}
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; padding-top:22px; border-top:1px solid var(--border);
  font-size:.8rem; color:var(--ink-faint); flex-wrap:wrap; gap:10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 880px){
  .tool-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .calc-grid{grid-template-columns:1fr;}
  .result-card{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  nav.main-nav{
    display:flex; position:fixed; inset:68px 0 0 0; background:var(--bg); flex-direction:column; align-items:stretch;
    padding:16px; gap:4px; transform:translateY(-8px); opacity:0; visibility:hidden; pointer-events:none;
    transition:transform .18s ease, opacity .18s ease, visibility 0s linear .18s; z-index:60;
    border-top:1px solid var(--border); overflow-y:auto;
  }
  nav.main-nav.open{
    transform:translateY(0); opacity:1; visibility:visible; pointer-events:auto;
    transition:transform .18s ease, opacity .18s ease, visibility 0s linear 0s;
  }
  nav.main-nav a{padding:16px 18px; font-size:1.02rem; border-bottom:1px solid var(--border); border-radius:0;}
  nav.main-nav a:last-child{border-bottom:none;}
  nav.main-nav a:hover, nav.main-nav a.active{background:var(--surface-2);}

  .nav-overlay{
    display:block; position:fixed; inset:68px 0 0 0; background:rgba(10,12,20,.45);
    z-index:55; opacity:0; visibility:hidden; transition:opacity .18s ease, visibility 0s linear .18s;
  }
  .nav-overlay.show{opacity:1; visibility:visible; transition:opacity .18s ease, visibility 0s linear 0s;}

  .nav-toggle{
    display:flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:10px;
    border:1px solid var(--border); background:var(--surface); cursor:pointer; position:relative; z-index:61;
  }
  .nav-toggle .icon-close{display:none;}
  .nav-toggle[aria-expanded="true"] .icon-burger{display:none;}
  .nav-toggle[aria-expanded="true"] .icon-close{display:block;}
  .head-row{display:none;}
  .subject-row{grid-template-columns:1fr; gap:8px; padding:14px 0;}
  .subject-row .coef{justify-self:start;}
}
@media (max-width: 560px){
  .footer-grid{grid-template-columns:1fr;}
  .qr-banner .box{flex-direction:column; align-items:flex-start;}
}