:root {
  --bg: #0b0f19;
  --sidebar: #0f1422;
  --card: rgba(22, 28, 45, 0.45);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f3f4f6;
  --muted: #9ca3af;
  --faint: #4b5563;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --banner: rgba(15, 20, 34, 0.6);
  --banner-line: rgba(255, 255, 255, 0.08);
  --sec-head: rgba(30, 41, 59, 0.4);
  --hover: rgba(255, 255, 255, 0.04);
  
  --green: #10b981;
  --amber: #f59e0b;
  --red: #ef4444;
  --blue: #3b82f6;
  --green-s: rgba(16, 185, 129, 0.12);
  --amber-s: rgba(245, 158, 11, 0.12);
  --red-s: rgba(239, 68, 68, 0.12);
  
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --radius: 12px;
  --font: 'Outfit', sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  overflow: hidden;
}
a { color: inherit; text-decoration: none; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.hidden { display: none !important; }

/* ---- custom scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #334155; }

/* ---- banner ---- */
#banner {
  background: var(--banner);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--banner-line);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13.5px;
  height: 52px;
  position: relative;
  z-index: 10;
}
#banner .b-left { display: flex; align-items: center; gap: 14px; font-weight: 500; }
#banner b { color: var(--text); font-weight: 700; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.g { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot.a { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.dot.r { background: var(--red); box-shadow: 0 0 8px var(--red); }
#banner .b-right { display: flex; align-items: center; gap: 14px; }
#banner .b-right .u { color: var(--muted); font-weight: 500; }
.lnk { color: var(--accent); font-weight: 600; cursor: pointer; transition: color 0.2s; }
.lnk:hover { color: var(--accent-dark); }

/* ---- layout ---- */
#app { display: grid; grid-template-columns: 240px 1fr; height: calc(100% - 52px); }
#sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 16px;
  font-weight: 700;
  font-size: 16px;
  border-bottom: 1px solid var(--border);
}
.nav-group { margin: 8px 0 0; }
.nav-group .gl {
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 6px 20px;
  font-weight: 700;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 20px;
  color: #94a3b8;
  cursor: pointer;
  border-left: 3px solid transparent;
  font-size: 14px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-item i {
  width: 16px;
  height: 16px;
  opacity: .8;
}
.nav-item:hover {
  background: var(--hover);
  color: var(--text);
  transform: translateX(4px);
}
.nav-item.active {
  color: var(--text);
  background: var(--accent-soft);
  border-left-color: var(--accent);
  font-weight: 600;
}
.nav-item .badge {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  border-radius: 999px;
  font-size: 11px;
  padding: 1px 7px;
  font-weight: 600;
}
.nav-item .badge.r { background: var(--red-s); color: var(--red); }

/* ---- main ---- */
#main { overflow-y: auto; padding: 24px 30px 60px; height: 100%; position: relative; }
.page-h {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}
.page-h h1 { font-size: 24px; margin: 0 0 4px; font-weight: 700; }
.page-h .sub { color: var(--muted); font-size: 13.5px; }
.actions { display: flex; gap: 8px; }

.btn {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  outline: none;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}
.btn.pri {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  border: none;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}
.btn.pri:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}
.btn.danger {
  background: linear-gradient(135deg, var(--red), #b91c1c);
  color: #fff;
  border: none;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.3);
}
.btn.danger:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

/* ---- tiles ---- */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.tile {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s, transform 0.2s;
}
.tile:hover {
  border-color: rgba(37, 99, 235, 0.3);
  transform: translateY(-2px);
}
.tile .t-ic {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.tile .t-n { font-size: 28px; font-weight: 700; margin-top: 8px; line-height: 1; }
.tile .t-s { color: var(--muted); font-size: 12px; margin-top: 6px; }

/* ---- card / section ---- */
.card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}
.sec-head {
  background: var(--sec-head);
  border-bottom: 1px solid var(--border);
  padding: 12px 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
}
.sec-head .r { margin-left: auto; font-weight: 500; color: var(--muted); font-size: 13px; }
.card-b { padding: 20px; }

/* ---- forms ---- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
}
select, input.f, textarea.f {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13.5px;
  background: rgba(15, 20, 34, 0.6);
  color: var(--text);
  outline: none;
  font-family: var(--font);
  transition: border-color 0.2s, box-shadow 0.2s;
}
select:focus, input.f:focus, textarea.f:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea.f {
  resize: vertical;
  min-height: 80px;
}

/* ---- table ---- */
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; }
th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
}
td { padding: 14px 18px; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
tr:last-child td { border-bottom: 0; }
tr.click { cursor: pointer; transition: background 0.2s; }
tr.click:hover td { background: rgba(255, 255, 255, 0.02); }

/* ---- badge ---- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 600; text-align: center; }
.b-green { background: var(--green-s); color: var(--green); }
.b-amber { background: var(--amber-s); color: var(--amber); }
.b-red { background: var(--red-s); color: var(--red); }
.b-gray { background: rgba(255,255,255,0.08); color: var(--muted); }

.score-lg { font-size: 34px; font-weight: 700; line-height: 1; }
.g-green { color: var(--green); }
.g-amber { color: var(--amber); }
.g-red { color: var(--red); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }

.kv { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.kv:last-child { border-bottom: 0; }
.kv .k { color: var(--muted); }
.chip { background: rgba(255,255,255,0.06); border: 1px solid var(--border); border-radius: 6px; padding: 3px 10px; font-size: 12px; display: inline-block; margin: 2px 3px 2px 0; }
.chip b { color: var(--text); }

.bar { height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; overflow: hidden; margin-top: 8px; position: relative; }
.bar > i { display: block; height: 100%; border-radius: 3px; }
.empty { color: var(--muted); padding: 40px; text-align: center; font-size: 14px; }
.callout {
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13.5px;
  line-height: 1.5;
}

/* ---- login screen ---- */
#login {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 24px;
  max-width: 400px;
  margin: 0 auto;
  padding-top: 80px;
}
.logo-box {
  text-align: center;
}
.logo-box h2 {
  font-size: 32px;
  font-weight: 700;
  margin: 10px 0 5px;
  letter-spacing: -0.02em;
}
.login-card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.error-msg {
  color: var(--red);
  font-size: 12.5px;
  margin-top: 10px;
}

/* ---- approval chain graph ---- */
.chain-flow {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
  background: rgba(0, 0, 0, 0.15);
  padding: 12px;
  border-radius: 8px;
}
.chain-node {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 12.5px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 120px;
}
.chain-node.approved {
  border-color: var(--green);
  background: var(--green-s);
}
.chain-node.rejected {
  border-color: var(--red);
  background: var(--red-s);
}
.chain-node.pending {
  border-color: var(--amber);
  background: var(--amber-s);
}
.chain-node .n-title { font-weight: 600; color: var(--text); }
.chain-node .n-status { font-size: 11px; text-transform: uppercase; font-weight: 700; }
.chain-node.approved .n-status { color: var(--green); }
.chain-node.rejected .n-status { color: var(--red); }
.chain-node.pending .n-status { color: var(--amber); }
.chain-arrow {
  color: var(--faint);
  display: flex;
  align-items: center;
}

/* ---- dialog ---- */
.dialog-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dialog {
  background: var(--sidebar);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 500px;
  overflow: hidden;
}
.dialog-h {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 16px;
}
.dialog-b { padding: 20px; }
.dialog-f {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background: rgba(0, 0, 0, 0.15);
}

/* ---- filters ---- */
.flt { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.flt input.f, .flt select { padding: 6px 12px; font-size: 13px; }

/* ---- inline range calendar (izin talebi) ---- */
.cal { border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 12px; padding: 12px; max-width: 380px; background: rgba(255, 255, 255, 0.02); }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.cal-title { font-weight: 600; font-size: 14px; }
.cal-nav { cursor: pointer; width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; color: var(--accent); }
.cal-nav:hover { background: rgba(255, 255, 255, 0.07); }
.cal-nav i { width: 18px; height: 18px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow div { text-align: center; font-size: 11px; color: #7a8598; padding: 4px 0; }
.cal-day { text-align: center; padding: 9px 0; border-radius: 8px; font-size: 13px; cursor: pointer; user-select: none; border: 1px solid transparent; transition: background .12s; }
.cal-day:hover:not(.blank):not(.sel) { background: rgba(255, 255, 255, 0.07); }
.cal-day.blank { cursor: default; }
.cal-day.wknd { color: #6b7688; }
.cal-day.today { border-color: rgba(255, 255, 255, 0.22); }
.cal-day.holi { color: #f59e0b; background: rgba(245, 158, 11, 0.13); font-weight: 600; }
.cal-day.holi-half { color: #f59e0b; background: rgba(245, 158, 11, 0.05); border: 1px dashed rgba(245, 158, 11, 0.45); }
.cal-day.rng { background: rgba(37, 99, 235, 0.20); }
.cal-day.sel { background: var(--accent); color: #fff; font-weight: 700; }
.cal-holi-list { margin-top: 12px; display: flex; flex-direction: column; gap: 5px; }
.cal-holi-title { font-size: 12px; color: #7a8598; margin-bottom: 2px; }
.cal-holi { font-size: 12.5px; color: #f59e0b; display: flex; align-items: center; gap: 6px; }
.cal-holi i { width: 14px; height: 14px; }

/* ---- team calendar (ekip takvimi ay görünümü) ---- */
.tc-cal { max-width: 780px; margin: 0 auto; }
.tc-head { display: flex; align-items: center; justify-content: center; gap: 24px; margin-bottom: 14px; }
.tc-title { font-weight: 600; font-size: 16px; min-width: 160px; text-align: center; }
.tc-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.tc-dow div { text-align: center; font-size: 12px; color: #7a8598; padding: 4px 0; }
.tc-cell { min-height: 82px; border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 8px; padding: 5px; display: flex; flex-direction: column; gap: 3px; background: rgba(255, 255, 255, 0.02); }
.tc-cell.blank { border: none; background: transparent; }
.tc-cell.wknd { background: rgba(255, 255, 255, 0.008); }
.tc-cell.today { border-color: var(--accent); }
.tc-daynum { font-size: 12px; color: #9aa7bd; text-align: right; }
.tc-pills { display: flex; flex-direction: column; gap: 3px; overflow: hidden; }
.tc-pill { font-size: 10.5px; line-height: 1.5; padding: 1px 6px; border-radius: 5px; color: #fff; background: var(--pc); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tc-pill.pending { background: transparent; border: 1px dashed var(--pc); color: var(--pc); }
.tc-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 16px; justify-content: center; }
.tc-leg { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: #c7d0de; }
.tc-swatch { width: 11px; height: 11px; border-radius: 3px; display: inline-block; vertical-align: middle; }

/* ---- responsive ---- */
@media(max-width: 820px) {
  #app { grid-template-columns: 1fr; }
  #sidebar { display: none; }
}