/* ============================================================
   E-Mimarlık — tasarım sistemi v3
   Konsept: çağdaş mimarlık stüdyosu × teknoloji girişimi.
   Ultramarin (çizim mavisinin cesur hali) + kehribar vurgu,
   sıcak beyaz zemin, derin lacivert bölümler. İmza: antet
   kutusu (title block) + izometrik küp logo.
   ============================================================ */
:root{
  --paper:#FAFAF7;
  --surface:#FFFFFF;
  --surface-alt:#F1F2ED;
  --line:#E3E5DC;
  --line-strong:#C9CCBF;
  --ink:#10141F;
  --ink-soft:#4A5160;
  --ink-faint:#8B92A0;
  --blue:#2743E3;
  --blue-deep:#1B2FA8;
  --blue-ink:#131C4F;
  --blue-tint:#EDF0FF;
  --amber:#F4A63C;
  --amber-deep:#C77E15;
  --amber-tint:#FFF4E0;
  --ok:#0FA47A;
  --ok-tint:#E4F6EF;
  --warn:#DE4A2C;
  --warn-tint:#FDEAE4;
  --radius:6px;
  --shadow-sm:0 1px 3px rgba(16,20,31,0.06), 0 4px 14px rgba(16,20,31,0.05);
  --shadow-md:0 4px 10px rgba(16,20,31,0.08), 0 14px 34px rgba(16,20,31,0.10);
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
}
*{box-sizing:border-box;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);min-height:100vh;display:flex;flex-direction:column;
}
main{flex:1;max-width:1140px;width:100%;margin:0 auto;padding:34px 22px 70px;}
a{color:var(--blue);text-decoration:none;}
a:hover{text-decoration:underline;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;}}

/* ---------- top navigation ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 26px;height:64px;
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,0.92);backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:50;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{text-decoration:none;}
.brand svg{width:30px;height:30px;flex:none;}
.brand b{font-family:var(--font-display);font-size:17px;font-weight:700;display:block;line-height:1.05;letter-spacing:-0.3px;}
.brand i{font-style:normal;font-family:var(--font-mono);font-size:8.5px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:1px;}
nav{display:flex;align-items:center;gap:20px;}
nav a{color:var(--ink-soft);font-size:13.5px;font-weight:500;transition:color .15s;}
nav a:hover{color:var(--blue);text-decoration:none;}
nav .admin-link{color:var(--amber-deep);}
.chip{
  font-family:var(--font-mono);font-size:11px;font-weight:600;padding:6px 13px;border-radius:20px;
  color:#7A5510;background:linear-gradient(120deg,#FFE9C4,#FFD98F);
  border:1px solid #EBC275;white-space:nowrap;
}
.btn-ghost{
  border:1.5px solid var(--ink);padding:8px 17px;border-radius:22px;
  color:var(--ink)!important;font-size:12.5px;font-weight:600;background:transparent;
  transition:all .15s;
}
.btn-ghost:hover{background:var(--ink);color:#fff!important;text-decoration:none;}
footer{
  padding:26px 22px;color:#9BA3B8;font-size:11px;
  font-family:var(--font-mono);background:var(--blue-ink);
  letter-spacing:0.5px;text-align:center;
}

/* ---------- typography ---------- */
h1{font-family:var(--font-display);font-weight:700;font-size:28px;margin:0 0 8px;letter-spacing:-0.5px;}
h2{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:-0.1px;}
.eyebrow{
  font-family:var(--font-mono);font-size:10.5px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--blue);margin:0 0 9px;
}
.sub{color:var(--ink-soft);font-size:14px;margin:0 0 26px;line-height:1.65;}

/* ---------- imza: antet kutusu ---------- */
.titleblock{
  display:flex;flex-wrap:wrap;border:1.5px solid var(--ink);border-radius:var(--radius);
  background:var(--surface);margin-bottom:30px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.tb-cell{padding:11px 20px;border-right:1px solid var(--line-strong);flex:1;min-width:130px;position:relative;}
.tb-cell:first-child::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--blue),var(--amber));
}
.tb-cell:first-child{padding-left:24px;}
.tb-cell:last-child{border-right:none;}
.tb-label{font-family:var(--font-mono);font-size:9px;letter-spacing:1.1px;text-transform:uppercase;color:var(--ink-faint);display:block;margin-bottom:3px;}
.tb-value{font-family:var(--font-display);font-size:14.5px;font-weight:700;color:var(--ink);}
.tb-value.mono{font-family:var(--font-mono);font-weight:500;font-size:12.5px;}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(700px 340px at 88% -20%, rgba(244,166,60,0.16), transparent 65%),
    radial-gradient(900px 460px at -10% 110%, rgba(39,67,227,0.10), transparent 60%),
    var(--surface);
  border:1px solid var(--line);border-radius:12px;
  padding:52px 48px;margin-bottom:36px;box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(39,67,227,0.07) 27px, rgba(39,67,227,0.07) 28px),
    repeating-linear-gradient(90deg, transparent, transparent 27px, rgba(39,67,227,0.07) 27px, rgba(39,67,227,0.07) 28px);
  border-radius:50%;pointer-events:none;
}
.hero h1{font-size:38px;line-height:1.12;max-width:640px;}
.hero .sub{font-size:15px;max-width:560px;}
.hero-stats{display:flex;gap:36px;margin-top:30px;flex-wrap:wrap;}
.hero-stat .n{font-family:var(--font-display);font-size:24px;font-weight:700;color:var(--blue);}
.hero-stat .l{font-family:var(--font-mono);font-size:10px;letter-spacing:0.8px;text-transform:uppercase;color:var(--ink-faint);margin-top:2px;}

/* ---------- buttons ---------- */
.btn{
  background:var(--blue);color:#fff;border:none;padding:12px 26px;border-radius:24px;
  font-family:var(--font-body);font-size:13.5px;font-weight:600;cursor:pointer;letter-spacing:0.1px;
  box-shadow:0 4px 14px rgba(39,67,227,0.32);transition:all .18s;
  display:inline-block;text-align:center;
}
.btn:hover{background:var(--blue-deep);box-shadow:0 6px 20px rgba(39,67,227,0.42);transform:translateY(-1px);text-decoration:none;color:#fff;}
.btn:disabled{background:var(--surface-alt);color:var(--ink-faint);box-shadow:none;cursor:not-allowed;transform:none;}
.btn-sm{padding:8px 16px;font-size:12px;}
.btn-danger{background:var(--warn);box-shadow:0 4px 14px rgba(222,74,44,0.3);}
.btn-danger:hover{background:#b93a20;}
.btn-amber{background:linear-gradient(120deg,var(--amber),#E8912A);color:#3D2800;box-shadow:0 4px 14px rgba(244,166,60,0.4);}
.btn-amber:hover{background:linear-gradient(120deg,#E8912A,var(--amber));color:#3D2800;}

/* ---------- cards ---------- */
.card{border:1px solid var(--line);border-radius:10px;background:var(--surface);padding:24px;box-shadow:var(--shadow-sm);}
.card-feature{border-top:3px solid var(--blue);}
.card-feature:nth-child(2n){border-top-color:var(--amber);}
.card-feature:nth-child(3n){border-top-color:var(--ok);}
.field{margin-bottom:15px;}
.field label{display:block;font-size:12px;color:var(--ink-soft);margin-bottom:6px;font-weight:600;}
input,textarea,select{
  width:100%;background:var(--surface);border:1.5px solid var(--line-strong);color:var(--ink);
  padding:10px 13px;border-radius:var(--radius);font-family:var(--font-body);font-size:13.5px;outline:none;
  transition:border-color .15s;
}
input:focus,textarea:focus,select:focus{border-color:var(--blue);}
textarea{resize:vertical;min-height:72px;}

/* ---------- library grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:18px;}
.model-card{
  border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden;
  transition:all .2s;box-shadow:var(--shadow-sm);
}
.model-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-3px);}
.model-thumb{aspect-ratio:1;background:linear-gradient(160deg,#FDFDFB,#EFF1EA);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;}
.model-thumb img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(1.22) contrast(1.06);
  transition:transform .25s;
}
.model-card:hover .model-thumb img{transform:scale(1.04);}
.model-thumb .noimg{color:var(--ink-faint);font-family:var(--font-mono);font-size:10px;}
.model-body{padding:14px 16px;}
.model-title{font-family:var(--font-display);font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink);}
.model-meta{font-size:11px;color:var(--ink-soft);margin-top:5px;display:flex;justify-content:space-between;align-items:center;gap:8px;}
.price-tag{
  font-family:var(--font-mono);font-size:10.5px;font-weight:600;color:#7A5510;
  background:var(--amber-tint);border:1px solid #EBC275;padding:3px 9px;border-radius:12px;white-space:nowrap;
}

/* ---------- status pills ---------- */
.status-pill{
  font-family:var(--font-mono);font-size:10px;font-weight:600;letter-spacing:0.4px;text-transform:uppercase;
  padding:5px 11px;border-radius:20px;border:1px solid var(--line-strong);color:var(--ink-soft);background:var(--surface);
}
.status-pill.running{color:var(--blue);border-color:var(--blue);background:var(--blue-tint);}
.status-pill.success{color:var(--ok);border-color:var(--ok);background:var(--ok-tint);}
.status-pill.failed{color:var(--warn);border-color:var(--warn);background:var(--warn-tint);}
.status-pill.open{color:var(--blue);border-color:var(--blue);background:var(--blue-tint);}
.status-pill.approved{color:var(--ok);border-color:var(--ok);background:var(--ok-tint);}
.status-pill.rejected{color:var(--warn);border-color:var(--warn);background:var(--warn-tint);}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:13px;}
th{
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:1px;text-transform:uppercase;
  color:var(--ink-faint);text-align:left;padding:10px;border-bottom:2px solid var(--ink);
}
td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:middle;}

/* ---------- alerts ---------- */
.note{
  font-size:12.5px;line-height:1.65;color:var(--blue-ink);background:var(--blue-tint);
  border:1px solid #B9C4F5;border-radius:var(--radius);padding:13px 16px;margin-bottom:20px;
}
.alert-err{background:var(--warn-tint);border:1px solid var(--warn);color:#A53318;padding:12px 16px;border-radius:var(--radius);font-size:12.5px;margin-bottom:16px;}
.alert-ok{background:var(--ok-tint);border:1px solid var(--ok);color:#0A7A5A;padding:12px 16px;border-radius:var(--radius);font-size:12.5px;margin-bottom:16px;}

/* ---------- auth ---------- */
.auth-wrap{max-width:410px;margin:50px auto;}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:3px;background:var(--surface-alt);border:1px solid var(--line);border-radius:24px;padding:4px;margin-bottom:18px;}
.tab{flex:1;text-align:center;padding:9px 6px;font-size:12.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;border-radius:20px;transition:all .15s;}
.tab.active{background:var(--blue);color:#fff;box-shadow:0 2px 8px rgba(39,67,227,0.3);}
.tabpanel{display:none;}
.tabpanel.active{display:block;}

/* ---------- dropzone ---------- */
.dropzone{border:2px dashed var(--line-strong);border-radius:10px;padding:26px;text-align:center;cursor:pointer;background:var(--surface-alt);transition:all .15s;}
.dropzone:hover{border-color:var(--blue);background:var(--blue-tint);}
.dropzone p{margin:0;font-size:13px;color:var(--ink);font-weight:500;}
.dropzone .s{color:var(--ink-faint);font-size:11px;font-weight:400;margin-top:3px;}

/* ---------- 3D viewer ---------- */
model-viewer{width:100%;height:440px;background:linear-gradient(160deg,#FDFDFB,#EDEFE8);border:1px solid var(--line);border-radius:12px;}
.viewer-wrap{position:relative;}
.viewer-badge{
  position:absolute;top:14px;left:14px;font-family:var(--font-mono);font-size:10px;font-weight:600;letter-spacing:0.4px;
  padding:6px 13px;border-radius:20px;background:rgba(255,255,255,0.95);border:1px solid var(--line-strong);
  color:var(--ink-soft);z-index:3;box-shadow:var(--shadow-sm);
}
.viewer-loading{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#FDFDFB,#EDEFE8);border-radius:12px;font-family:var(--font-mono);
  font-size:12px;color:var(--ink-soft);
}

/* ---------- dark band section (ana sayfa) ---------- */
.band{
  background:var(--blue-ink);color:#E8EBF5;border-radius:12px;
  padding:40px 44px;margin-bottom:36px;position:relative;overflow:hidden;
}
.band::before{
  content:"";position:absolute;left:-60px;bottom:-80px;width:300px;height:300px;
  background:radial-gradient(circle, rgba(244,166,60,0.22), transparent 70%);pointer-events:none;
}
.band h2{color:#fff;font-size:20px;margin-top:0;}
.band .eyebrow{color:var(--amber);}
.band p{color:#B9C0D6;font-size:13.5px;line-height:1.7;}
.band .n{font-family:var(--font-display);font-size:26px;font-weight:700;color:var(--amber);}
.band .l{font-family:var(--font-mono);font-size:10px;letter-spacing:0.8px;text-transform:uppercase;color:#8890AC;margin-top:3px;}

/* ---------- misc ---------- */
.two-col{display:grid;grid-template-columns:390px 1fr;gap:24px;}
@media(max-width:920px){
  .two-col{grid-template-columns:1fr;}
  .titleblock{flex-direction:column;}
  .tb-cell{border-right:none;border-bottom:1px solid var(--line-strong);}
  .hero{padding:34px 26px;}
  .hero h1{font-size:29px;}
  .band{padding:30px 26px;}
}
.row-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.mono{font-family:var(--font-mono);font-size:11px;color:var(--ink-soft);}