/* ============================================================
   TEKHAT — Tasarım Sistemi
   Kimlik: mühendislik/tek hat şeması dünyası — koyu "pano" sidebar,
   bakır/amber vurgu (baralar & uyarı etiketleri), teknik mono veri tipografisi.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* Zemin */
  --bg-app: #EEF1F6;
  --bg-panel: #FFFFFF;
  --bg-panel-soft: #F5F7FA;
  --border: #DFE4EC;
  --border-soft: #EBEEF3;

  /* Pano (sidebar) — koyu, kontrol panosu hissi */
  --panel-dark: #0B1526;
  --panel-dark-soft: #101F38;
  --panel-dark-ink: #B9C6DC;
  --panel-dark-ink-dim: #6E7F9E;

  /* Mürekkep */
  --ink: #101828;
  --ink-soft: #475467;
  --ink-faint: #8A94A6;

  /* Vurgu — bakır/amber (bara & uyarı rengi) */
  --accent: #C17A3D;
  --accent-ink: #7A4A20;
  --accent-soft: #F6E4D1;
  --accent-line: #E4B47E;

  /* Durum renkleri */
  --ok: #12786B;
  --ok-soft: #DCF0EC;
  --warn: #B8791A;
  --warn-soft: #FBEBD3;
  --danger: #C23B3B;
  --danger-soft: #FBE2E2;
  --info: #3A5C8C;
  --info-soft: #E4EBF6;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.06);
  --shadow-md: 0 4px 12px rgba(16,24,40,.08);

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: var(--font-body);
  background: var(--bg-app);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a{ color: inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family: var(--font-display); font-weight:600; margin:0; letter-spacing:-.01em; }
.mono{ font-family: var(--font-mono); }

/* ---------- Uygulama İskeleti ---------- */
.app{ display:flex; min-height:100vh; }

.sidebar{
  width: 248px;
  flex-shrink:0;
  background: var(--panel-dark);
  color: var(--panel-dark-ink);
  display:flex;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
  background-image:
    linear-gradient(180deg, var(--panel-dark) 0%, var(--panel-dark-soft) 100%);
}

.sidebar__brand{
  display:flex; align-items:center; gap:10px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.sidebar__brand-mark{ width:30px; height:30px; flex-shrink:0; }
.sidebar__brand-text{ font-family: var(--font-display); font-weight:700; font-size:17px; color:#fff; letter-spacing:.01em; }
.sidebar__brand-sub{ font-size:10.5px; color: var(--panel-dark-ink-dim); letter-spacing:.06em; text-transform:uppercase; margin-top:1px; }

.sidebar__nav{ padding: 12px 10px; flex:1; overflow-y:auto; }
.sidebar__group-label{
  font-size: 10.5px; text-transform:uppercase; letter-spacing:.08em;
  color: var(--panel-dark-ink-dim); padding: 14px 10px 6px;
}
.navlink{
  display:flex; align-items:center; gap:11px;
  padding: 9px 10px; border-radius: var(--radius-sm);
  color: var(--panel-dark-ink); font-size:13.5px; font-weight:500;
  margin-bottom:1px;
}
.navlink svg{ width:17px; height:17px; opacity:.8; flex-shrink:0; }
.navlink:hover{ background: rgba(255,255,255,.06); color:#fff; }
.navlink.active{
  background: linear-gradient(90deg, rgba(193,122,61,.22), rgba(193,122,61,.05));
  color:#fff;
  box-shadow: inset 2px 0 0 var(--accent-line);
}
.navlink.active svg{ opacity:1; color: var(--accent-line); }

.sidebar__bell{ position:relative; display:flex; align-items:center; justify-content:center; width:32px; height:32px; border-radius:8px; color:var(--panel-dark-ink-dim); flex-shrink:0; }
.sidebar__bell:hover{ background:rgba(255,255,255,.08); color:#fff; }
.sidebar__bell svg{ width:17px; height:17px; }
.sidebar__bell-badge{
  position:absolute; top:-3px; right:-3px; background:var(--danger); color:#fff;
  font-size:9.5px; font-weight:800; min-width:15px; height:15px; border-radius:100px;
  display:flex; align-items:center; justify-content:center; padding:0 3px; border:2px solid var(--panel-dark);
}
.sidebar__foot{
  padding:14px 18px; border-top:1px solid rgba(255,255,255,.06);
  font-size:11.5px; color:var(--panel-dark-ink-dim);
}

.main{ flex:1; min-width:0; display:flex; flex-direction:column; }

.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 28px; background: var(--bg-panel);
  border-bottom:1px solid var(--border);
  position:sticky; top:0; z-index:5;
}
.topbar__title{ font-size:19px; }
.topbar__breadcrumb{ font-size:12px; color:var(--ink-faint); margin-top:2px; }
.topbar__actions{ display:flex; gap:10px; align-items:center; }

.content{ padding: 24px 28px 60px; max-width: 1320px; width:100%; margin:0 auto; }

/* ---------- Bileşenler ---------- */
.btn{
  display:inline-flex; align-items:center; gap:7px;
  padding: 9px 16px; border-radius: var(--radius-sm);
  font-size:13.5px; font-weight:600; font-family:var(--font-body);
  border:1px solid var(--border); background:#fff; color:var(--ink);
  cursor:pointer; transition: all .12s ease;
}
.btn:hover{ border-color:#C7CEDA; background:var(--bg-panel-soft); }
.btn svg{ width:15px; height:15px; }
.btn-primary{
  background: var(--accent); border-color: var(--accent); color:#fff;
}
.btn-primary:hover{ background: var(--accent-ink); border-color:var(--accent-ink); }
.btn-ghost{ background:transparent; border-color:transparent; }
.btn-ghost:hover{ background: var(--bg-panel-soft); }
.btn-sm{ padding:6px 11px; font-size:12.5px; }
.btn-danger{ color: var(--danger); }

.card{
  background: var(--bg-panel); border:1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card__head{
  padding:16px 20px; border-bottom:1px solid var(--border-soft);
  display:flex; align-items:center; justify-content:space-between;
}
.card__head h3{ font-size:15px; }
.card__body{ padding: 20px; }
.card__body--flush{ padding:0; }

.grid{ display:grid; gap:18px; }
.grid-4{ grid-template-columns: repeat(4,1fr); }
.grid-3{ grid-template-columns: repeat(3,1fr); }
.grid-2{ grid-template-columns: repeat(2,1fr); }
@media (max-width: 1100px){ .grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);} }

.kpi{
  background:var(--bg-panel); border:1px solid var(--border); border-radius:var(--radius);
  padding:17px 18px; box-shadow:var(--shadow);
}
.kpi__label{ font-size:12px; color:var(--ink-faint); font-weight:600; text-transform:uppercase; letter-spacing:.03em; }
.kpi__value{ font-family: var(--font-display); font-size:28px; margin-top:6px; }
.kpi__meta{ font-size:12px; margin-top:5px; color:var(--ink-soft); }
.kpi--accent{ border-top:3px solid var(--accent); }
.kpi--ok{ border-top:3px solid var(--ok); }
.kpi--warn{ border-top:3px solid var(--warn); }
.kpi--danger{ border-top:3px solid var(--danger); }

table{ width:100%; border-collapse:collapse; font-size:13.5px; }
thead th{
  text-align:left; font-size:11.5px; text-transform:uppercase; letter-spacing:.04em;
  color:var(--ink-faint); font-weight:600; padding:11px 16px; background:var(--bg-panel-soft);
  border-bottom:1px solid var(--border);
}
tbody td{ padding:12px 16px; border-bottom:1px solid var(--border-soft); vertical-align:middle; }
tbody tr:hover{ background: var(--bg-panel-soft); }
tbody tr:last-child td{ border-bottom:none; }
.table-wrap{ overflow-x:auto; }

.badge{
  display:inline-flex; align-items:center; gap:5px;
  padding: 3px 10px; border-radius:100px; font-size:11.5px; font-weight:600;
  white-space:nowrap;
}
.badge-dot{ width:6px; height:6px; border-radius:50%; background:currentColor; }
.badge--ok{ background:var(--ok-soft); color:var(--ok); }
.badge--warn{ background:var(--warn-soft); color:var(--warn); }
.badge--danger{ background:var(--danger-soft); color:var(--danger); }
.badge--info{ background:var(--info-soft); color:var(--info); }
.badge--accent{ background:var(--accent-soft); color:var(--accent-ink); }
.badge--neutral{ background:var(--bg-panel-soft); color:var(--ink-soft); border:1px solid var(--border); }

.form-row{ margin-bottom:16px; }
.form-row label{ display:block; font-size:12.5px; font-weight:600; color:var(--ink-soft); margin-bottom:6px; }
.form-row .hint{ font-size:11.5px; color:var(--ink-faint); margin-top:5px; font-weight:400; }
input[type=text], input[type=email], input[type=tel], input[type=number], input[type=date], select, textarea{
  width:100%; padding:9px 12px; border:1px solid var(--border); border-radius:var(--radius-sm);
  font-size:13.5px; font-family:var(--font-body); background:#fff; color:var(--ink);
}
input:focus, select:focus, textarea:focus{ outline:2px solid var(--accent-line); outline-offset:0; border-color:var(--accent); }
textarea{ resize:vertical; min-height:80px; }

.empty{
  text-align:center; padding: 52px 20px; color:var(--ink-faint);
}
.empty svg{ width:38px; height:38px; margin-bottom:12px; opacity:.5; }
.empty__title{ font-weight:600; color:var(--ink-soft); font-size:14px; margin-bottom:4px; }

/* ---------- Tek Hat Şeması / Şantiye Aşama Stepper (imza öge) ----------
   Proje aşamaları, gerçek bir tek hat şeması gibi çizilir: yatay bara +
   üzerine dizilmiş "hücre" kutucukları (kare = hücre sembolü), tamamlanan
   aşama dolu bakır, aktif aşama yarı-dolu amber, bekleyen boş. */
.sld-stepper{
  display:flex; align-items:flex-start; overflow-x:auto; padding: 6px 4px 2px;
}
.sld-node{
  display:flex; flex-direction:column; align-items:center; min-width:112px; position:relative;
}
.sld-node__bara{
  position:absolute; top:17px; left:-50%; width:100%; height:2px; background:var(--border);
  z-index:0;
}
.sld-node:first-child .sld-node__bara{ display:none; }
.sld-node.done .sld-node__bara{ background: var(--accent); }
.sld-node__sym{
  width:34px; height:34px; border-radius:6px; border:2.5px solid var(--border);
  background:#fff; display:flex; align-items:center; justify-content:center;
  position:relative; z-index:1; flex-shrink:0;
}
.sld-node.done .sld-node__sym{ background: var(--accent); border-color: var(--accent); }
.sld-node.active .sld-node__sym{ border-color: var(--warn); background: var(--warn-soft); }
.sld-node.done .sld-node__sym svg{ stroke:#fff; }
.sld-node.active .sld-node__sym::after{
  content:''; width:9px; height:9px; border-radius:50%; background:var(--warn);
}
.sld-node__num{ font-family:var(--font-mono); font-size:10px; color:var(--ink-faint); margin-top:7px; }
.sld-node__label{ font-size:11.5px; text-align:center; margin-top:2px; max-width:100px; color:var(--ink-soft); font-weight:500; line-height:1.35;}
.sld-node.done .sld-node__label{ color:var(--ink); font-weight:600; }
.sld-node.active .sld-node__label{ color:var(--warn); font-weight:600; }

.progress-bar{ height:8px; border-radius:100px; background:var(--bg-panel-soft); overflow:hidden; border:1px solid var(--border-soft); }
.progress-bar__fill{ height:100%; background: linear-gradient(90deg, var(--accent-line), var(--accent)); border-radius:100px; }

.upload-zone{
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 44px 20px; text-align:center; background: var(--bg-panel-soft);
  cursor:pointer; transition: all .15s ease;
}
.upload-zone:hover, .upload-zone.dragover{ border-color: var(--accent); background: var(--accent-soft); }
.upload-zone svg{ width:36px; height:36px; color:var(--accent); margin-bottom:10px; }
.upload-zone__title{ font-weight:600; font-size:14.5px; }
.upload-zone__hint{ font-size:12px; color:var(--ink-faint); margin-top:5px; }

.alert{ display:flex; gap:10px; padding:12px 14px; border-radius:var(--radius-sm); font-size:13px; margin-bottom:14px; }
.alert svg{ width:17px; height:17px; flex-shrink:0; margin-top:1px; }
.alert--warn{ background:var(--warn-soft); color:var(--accent-ink); }
.alert--info{ background:var(--info-soft); color:var(--info); }
.alert--ok{ background:var(--ok-soft); color:var(--ok); }

.tabs{ display:flex; gap:2px; border-bottom:1px solid var(--border); margin-bottom:18px; }
.tab{ padding:10px 16px; font-size:13.5px; font-weight:600; color:var(--ink-faint); border-bottom:2px solid transparent; cursor:pointer; }
.tab.active{ color:var(--accent-ink); border-color:var(--accent); }

.avatar{
  width:28px; height:28px; border-radius:50%; background:var(--accent-soft); color:var(--accent-ink);
  display:flex; align-items:center; justify-content:center; font-size:11.5px; font-weight:700; flex-shrink:0;
}

.divider{ height:1px; background:var(--border-soft); margin:20px 0; border:none; }

.section-title{ font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint); font-weight:700; margin-bottom:12px; }

.timeline-item{ display:flex; gap:12px; padding: 12px 0; border-bottom:1px solid var(--border-soft); }
.timeline-item:last-child{ border-bottom:none; }
.timeline-item__dot{ width:8px; height:8px; border-radius:50%; background:var(--accent); margin-top:6px; flex-shrink:0; }

@media (max-width: 880px){
  .sidebar{ display:none; }
  .grid-4, .grid-3, .grid-2{ grid-template-columns:1fr; }
  .content{ padding:16px; }
}