/* ============================================================
   HesapPlus — assets/css/app.css
   ============================================================ */
:root {
  --bg: #f5f7fb;
  --card: rgba(255,255,255,.86);
  --dark: #121826;
  --muted: #7b8496;
  --primary: #2563eb;
  --primary-soft: #e9f0ff;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #f59e0b;
  --border: rgba(20,30,55,.08);
  --shadow: 0 20px 45px rgba(15,23,42,.08);
  --radius: 22px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, 'Segoe UI', Roboto, Arial, sans-serif;
  background: radial-gradient(circle at top left, #dbeafe 0, transparent 35%), var(--bg);
  color: var(--dark);
}

/* ── Layout ─────────────────────────────────────────────── */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 280px;
  background: #0f172a;
  color: #fff;
  padding: 24px 18px;
  position: fixed;
  inset: 0 auto 0 0;
  overflow-y: auto;
  z-index: 100;
}

.brand { display:flex; align-items:center; gap:12px; padding:8px 10px 28px; }
.brand-logo {
  width:46px; height:46px; border-radius:16px;
  display:grid; place-items:center;
  background:linear-gradient(135deg,#60a5fa,#2563eb);
  box-shadow:0 12px 28px rgba(37,99,235,.35);
}
.brand h1 { font-size:18px; margin:0; }
.brand span { color:#94a3b8; font-size:12px; }

.nav-title {
  margin:18px 12px 8px; color:#64748b;
  font-size:11px; font-weight:700;
  letter-spacing:.08em; text-transform:uppercase;
}
.nav a {
  display:flex; align-items:center; gap:12px;
  color:#cbd5e1; text-decoration:none;
  padding:13px 14px; margin:5px 0;
  border-radius:15px; transition:.2s ease; font-size:14px;
}
.nav a:hover, .nav a.active { background:rgba(255,255,255,.1); color:#fff; }
.nav a.active { background:linear-gradient(135deg,#2563eb,#1d4ed8); }
.nav i { width:18px; text-align:center; }

.main { margin-left:280px; width:calc(100% - 280px); padding:24px; }

/* ── Topbar ─────────────────────────────────────────────── */
.topbar {
  display:flex; justify-content:space-between;
  align-items:center; gap:20px; margin-bottom:24px;
}
.search { flex:1; max-width:520px; position:relative; }
.search input {
  width:100%; height:52px; border:1px solid var(--border);
  border-radius:18px; padding:0 18px 0 48px; outline:none;
  background:rgba(255,255,255,.78); box-shadow:0 10px 30px rgba(15,23,42,.04);
}
.search i { position:absolute; left:18px; top:17px; color:var(--muted); }
.top-actions { display:flex; align-items:center; gap:12px; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  border:0; border-radius:16px; padding:14px 18px;
  background:var(--primary); color:#fff;
  font-weight:700; cursor:pointer; font-size:14px;
  box-shadow:0 12px 28px rgba(37,99,235,.22);
  text-decoration:none; transition:.15s ease;
}
.btn:hover { background:#1d4ed8; }
.btn.ghost {
  background:#fff; color:var(--primary);
  border:1px solid var(--border); box-shadow:none;
}
.btn.ghost:hover { background:var(--primary-soft); }
.icon-btn {
  width:50px; height:50px; border-radius:17px;
  border:1px solid var(--border); background:rgba(255,255,255,.75);
  cursor:pointer; display:grid; place-items:center;
}

/* ── Profile ────────────────────────────────────────────── */
.profile {
  display:flex; align-items:center; gap:10px;
  background:rgba(255,255,255,.75); border:1px solid var(--border);
  padding:8px 12px; border-radius:18px;
}
.avatar {
  width:36px; height:36px; border-radius:50%;
  background:linear-gradient(135deg,#0ea5e9,#2563eb);
  color:#fff; display:grid; place-items:center; font-weight:800;
}
.profile strong { display:block; font-size:13px; }
.profile span { display:block; font-size:11px; color:var(--muted); }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--radius); box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
}

/* ── Stat Cards ─────────────────────────────────────────── */
.stats {
  display:grid; grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px; margin-bottom:22px;
}
.stat-card { padding:22px; position:relative; overflow:hidden; }
.stat-card:after {
  content:""; position:absolute; right:-30px; top:-30px;
  width:110px; height:110px;
  background:var(--primary-soft); border-radius:50%;
}
.stat-top { display:flex; align-items:center; justify-content:space-between; position:relative; z-index:1; }
.stat-icon {
  width:48px; height:48px; display:grid; place-items:center;
  border-radius:16px; background:var(--primary-soft); color:var(--primary);
}
.stat-card h3 { margin:18px 0 6px; font-size:24px; letter-spacing:-.03em; position:relative; z-index:1; }
.stat-card p { margin:0; color:var(--muted); font-size:13px; position:relative; z-index:1; }
.trend { font-size:12px; font-weight:800; }

/* ── Grid ───────────────────────────────────────────────── */
.grid { display:grid; grid-template-columns:1.45fr .9fr; gap:20px; margin-bottom:22px; }
.panel { padding:22px; }
.panel-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; }
.panel-head h3 { margin:0; font-size:18px; }
.panel-head a { color:var(--primary); text-decoration:none; font-size:13px; font-weight:700; }

/* ── Chart ──────────────────────────────────────────────── */
.chart-box {
  height:220px; display:flex; align-items:end; gap:12px;
  padding:18px 8px 4px; border-radius:18px;
  background:linear-gradient(180deg,rgba(37,99,235,.05),rgba(37,99,235,0));
}
.bar {
  flex:1; min-width:22px; border-radius:14px 14px 6px 6px;
  background:linear-gradient(180deg,#60a5fa,#2563eb);
  position:relative; cursor:pointer; transition:.2s;
}
.bar:hover { opacity:.8; }
.bar span {
  position:absolute; bottom:-22px; left:50%; transform:translateX(-50%);
  font-size:10px; color:var(--muted); white-space:nowrap;
}

/* ── Quick Items ────────────────────────────────────────── */
.quick-list { display:grid; gap:10px; }
.quick-item {
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 14px; border:1px solid var(--border);
  border-radius:14px; background:rgba(248,250,252,.75);
  text-decoration:none; color:var(--dark); transition:.15s;
}
.quick-item:hover { border-color:var(--primary); background:var(--primary-soft); }
.quick-item > div { display:flex; align-items:center; gap:12px; }
.quick-item > div > i {
  width:38px; height:38px; border-radius:13px;
  display:grid; place-items:center;
  background:var(--primary-soft); color:var(--primary); font-size:14px;
}
.quick-item strong { display:block; font-size:14px; }
.quick-item small { color:var(--muted); }

/* ── Tables ─────────────────────────────────────────────── */
.table-card { padding:22px; }
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; }
th, td { text-align:left; padding:13px 12px; border-bottom:1px solid var(--border); font-size:14px; }
th { color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.04em; }
tbody tr:hover { background:rgba(248,250,252,.6); }

/* ── Badges ─────────────────────────────────────────────── */
.badge { padding:5px 11px; border-radius:999px; font-size:12px; font-weight:800; display:inline-block; }
.paid    { background:#dcfce7; color:#166534; }
.pending { background:#fef3c7; color:#92400e; }
.late    { background:#fee2e2; color:#991b1b; }

/* ── Table Buttons ──────────────────────────────────────── */
.tbl-btn {
  display:inline-flex; align-items:center; justify-content:center;
  width:32px; height:32px; border-radius:10px;
  border:1px solid var(--border); background:#fff;
  color:var(--muted); cursor:pointer; text-decoration:none;
  font-size:13px; transition:.15s;
}
.tbl-btn:hover { background:var(--primary-soft); color:var(--primary); border-color:var(--primary); }
.tbl-btn-danger:hover { background:#fee2e2; color:var(--danger); border-color:var(--danger); }

/* ── Forms ──────────────────────────────────────────────── */
.form-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.invoice-top { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; margin-bottom:18px; }
.invoice-builder, .delivery-builder { padding:22px; }
.field label {
  display:block; margin-bottom:7px; font-size:11px; font-weight:800;
  color:var(--muted); text-transform:uppercase; letter-spacing:.04em;
}
.field input, .field select, .field textarea {
  width:100%; border:1px solid var(--border);
  background:rgba(248,250,252,.85); border-radius:14px;
  padding:12px 14px; outline:none; font:inherit; color:var(--dark);
  transition:.15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color:var(--primary); box-shadow:0 0 0 3px rgba(37,99,235,.1);
}
.field textarea { min-height:80px; resize:vertical; }
.field.full { grid-column: 1 / -1; }

/* ── Invoice Summary ────────────────────────────────────── */
.invoice-summary { max-width:360px; margin-left:auto; margin-top:18px; display:grid; gap:10px; }
.invoice-summary div {
  display:flex; justify-content:space-between; align-items:center;
  padding:11px 14px; background:rgba(248,250,252,.85);
  border:1px solid var(--border); border-radius:14px;
}
.invoice-summary span { color:var(--muted); font-size:13px; }
.invoice-summary strong { font-size:15px; }
.invoice-summary .grand { background:#0f172a; color:#fff; }
.invoice-summary .grand span { color:#cbd5e1; }

.action-row { display:flex; justify-content:flex-end; gap:12px; margin-top:18px; flex-wrap:wrap; }
.wide { width:100%; margin-top:16px; }

/* ── Page Head ──────────────────────────────────────────── */
.page-head {
  display:flex; justify-content:space-between; align-items:end;
  margin-bottom:22px;
}
.page-head h2 { margin:0 0 6px; font-size:28px; letter-spacing:-.03em; }
.page-head p { margin:0; color:var(--muted); }

/* ── Flash Messages ─────────────────────────────────────── */
.flash {
  display:flex; align-items:center; gap:12px;
  padding:14px 18px; border-radius:16px;
  margin-bottom:20px; font-weight:700; font-size:14px;
}
.flash button { margin-left:auto; background:none; border:0; font-size:18px; cursor:pointer; opacity:.6; }
.flash-basari { background:#dcfce7; color:#166534; border:1px solid #86efac; }
.flash-hata   { background:#fee2e2; color:#991b1b; border:1px solid #fca5a5; }

/* ── Modal ──────────────────────────────────────────────── */
.modal-overlay {
  position:fixed; inset:0; background:rgba(15,23,42,.5);
  display:flex; align-items:center; justify-content:center;
  z-index:1000; padding:20px; backdrop-filter:blur(4px);
}
.modal-box {
  background:#fff; border-radius:24px; width:100%;
  max-width:640px; max-height:90vh; overflow-y:auto;
  box-shadow:0 40px 80px rgba(15,23,42,.2); padding:28px;
}
.modal-head {
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:20px;
}
.modal-head h3 { margin:0; font-size:20px; }
.modal-head button {
  width:36px; height:36px; border-radius:12px; border:0;
  background:rgba(248,250,252,.9); cursor:pointer; font-size:18px;
  display:grid; place-items:center;
}
.modal-head button:hover { background:#fee2e2; color:var(--danger); }

/* ── Delivery ───────────────────────────────────────────── */
.delivery-info-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; margin-bottom:18px; }

/* ── Color Utilities ────────────────────────────────────── */
.up   { color:var(--success); }
.down { color:var(--danger); }
.amount { font-weight:800; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width:1200px) {
  .stats { grid-template-columns:repeat(2,1fr); }
  .grid { grid-template-columns:1fr; }
  .invoice-top { grid-template-columns:repeat(2,1fr); }
  .delivery-info-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:820px) {
  .sidebar { display:none; }
  .main { margin-left:0; width:100%; padding:16px; }
  .stats { grid-template-columns:1fr 1fr; }
  .profile strong, .profile span { display:none; }
  .form-grid, .invoice-top, .delivery-info-grid { grid-template-columns:1fr; }
  .action-row { justify-content:stretch; }
  .action-row .btn { width:100%; }
  table { min-width:600px; }
}