:root {
    --navy: #14304d;
    --navy-2: #1b3a5b;
    --blue: #2f6fb0;
    --blue-light: #4f93d1;
    --gray: #9aa6b2;
    --bg: #eef1f5;
    --card: #ffffff;
    --green: #2e9e5b;
    --red: #d6453d;
    --text: #1f2d3d;
    --muted: #7a8a99;
    --border: #e3e8ee;
    --shadow: 0 1px 3px rgba(20, 48, 77, .08), 0 1px 2px rgba(20, 48, 77, .04);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

.dashboard { max-width: 1320px; margin: 0 auto; padding: 18px; }

/* HEADER */
.topbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    background: linear-gradient(180deg, #fff, #fafcff);
    border-radius: 12px;
    padding: 14px 22px;
    box-shadow: var(--shadow);
    margin-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy); }
.logo { width: 48px; height: 28px; }
.brand-name { font-weight: 700; letter-spacing: .5px; color: var(--navy); }
.titles { text-align: center; }
.titles h1 { font-size: 26px; font-weight: 800; color: var(--navy); letter-spacing: .5px; }
.titles p { font-size: 12px; color: var(--muted); letter-spacing: 3px; margin-top: 2px; }
.report-date { justify-self: end; background: var(--navy); color: #fff; border-radius: 8px; padding: 8px 16px; text-align: center; }
.report-date span { display: block; font-size: 10px; letter-spacing: 1px; opacity: .8; }
.report-date strong { font-size: 15px; }

/* FİLTRELER */
.filters {
    display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end;
    background: var(--card); border-radius: 12px; padding: 14px 18px;
    box-shadow: var(--shadow); margin-bottom: 14px;
}
.filter { display: flex; flex-direction: column; gap: 4px; min-width: 150px; flex: 1; }
.filter label { font-size: 10px; font-weight: 700; color: var(--navy); letter-spacing: 1px; }
.filter select {
    padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
    background: #fff; font-size: 13px; color: var(--text); cursor: pointer; outline: none;
}
.filter select:focus { border-color: var(--blue); }
.btn-clear {
    background: var(--navy); color: #fff; border: 0; border-radius: 8px;
    padding: 10px 18px; font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.btn-clear:hover { background: var(--navy-2); }

/* KPI KARTLARI */
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 14px; }
.kpi {
    background: var(--card); border-radius: 12px; padding: 16px; box-shadow: var(--shadow);
    display: flex; flex-direction: column; gap: 6px; position: relative; overflow: hidden;
}
.kpi-head { display: flex; align-items: center; gap: 8px; }
.kpi-icon {
    width: 42px; height: 42px; flex: none;
    display: grid; place-items: center; background: transparent;
}
.kpi-icon svg { width: 40px; height: 40px; }
.kpi-label { font-size: 10px; font-weight: 700; color: var(--muted); letter-spacing: .5px; line-height: 1.2; }
.kpi-value { font-size: 21px; font-weight: 800; color: var(--navy); }
.kpi-delta { font-size: 12px; font-weight: 600; }
.kpi-delta small { color: var(--muted); font-weight: 500; }
.delta-good { color: var(--green); }
.delta-bad { color: var(--red); }

/* GRID DÜZENLERİ */
.grid-3 { display: grid; grid-template-columns: 1fr 1.25fr 1fr; gap: 14px; margin-bottom: 14px; }
.grid-3b { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 14px; margin-bottom: 14px; }
.grid-2 { display: grid; grid-template-columns: 1.6fr 1fr; gap: 14px; margin-bottom: 14px; }

.card { background: var(--card); border-radius: 12px; padding: 16px 18px; box-shadow: var(--shadow); }
.card h3 { font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 10px; letter-spacing: .3px; }
.card h3 .muted { color: var(--muted); font-weight: 500; }

/* GİDER KIRILIMI LİSTESİ */
.breakdown { list-style: none; }
.breakdown li {
    display: flex; align-items: center; justify-content: space-between;
    padding: 9px 4px; border-bottom: 1px dashed var(--border); font-size: 13px;
}
.breakdown li:last-child { border-bottom: 0; }
.breakdown .b-name { display: flex; align-items: center; gap: 9px; color: var(--text); }
.breakdown .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.breakdown .b-val { font-weight: 700; color: var(--navy); }

/* TABLO */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.data-table th {
    background: var(--navy); color: #fff; font-weight: 600; padding: 8px 10px;
    text-align: right; white-space: nowrap; font-size: 11px;
}
.data-table th:first-child, .data-table th:nth-child(2) { text-align: left; }
.data-table td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
.data-table td:first-child, .data-table td:nth-child(2) { text-align: left; font-weight: 600; }
.data-table tr:nth-child(even) td { background: #f7f9fc; }
.data-table tr.total-row td { background: #e8eef6; font-weight: 800; color: var(--navy); border-top: 2px solid var(--navy); }

/* Donut/pasta altı renk kodlu değer listesi */
.gl-legend { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; padding: 0 4px; }
.gl-item { display: flex; align-items: center; gap: 9px; font-size: 13px; }
.gl-dot { width: 13px; height: 13px; border-radius: 4px; flex: none; }
.gl-name { color: var(--text); font-weight: 600; }
.gl-val { margin-left: auto; color: var(--navy); font-weight: 700; white-space: nowrap; }
.gl-pct { color: var(--muted); font-weight: 500; font-size: 11.5px; margin-left: 2px; }

/* Donut ortası ikon */
.donut-box { position: relative; }
.donut-center-icon {
    position: absolute; left: 50%; top: 43%; transform: translate(-50%, -50%);
    pointer-events: none;
}
.donut-center-icon svg { width: 46px; height: 46px; display: block; }

/* YAKIT TÜKETİM TRENDİ TABLOSU */
.trend-table { font-size: 12px; }
.trend-table th { font-size: 10.5px; padding: 7px 8px; text-align: center; }
.trend-table th:first-child, .trend-table th:nth-child(2) { text-align: left; }
.trend-table td { padding: 6px 8px; text-align: center; white-space: nowrap; font-weight: 600; }
.trend-table td.ytr-arac { text-align: left; font-weight: 700; color: var(--navy); }
.trend-table td.ytr-sur { text-align: left; font-weight: 500; color: var(--muted); }
.trend-table tr:nth-child(even) td { background: #f7f9fc; }
.trend-table td.tr-up   { color: var(--red); }
.trend-table td.tr-down { color: var(--green); }
.trend-table td.tr-flat { color: #b3bcc6; font-weight: 500; }
.trend-table tr.total-row td { background: #e8eef6; color: var(--navy); }
.trend-table tr.total-row td.tr-up { color: var(--red); }
.trend-table tr.total-row td.tr-down { color: var(--green); }

/* ÖNE ÇIKANLAR */
.highlights ul { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-top: 4px; }
.highlights li {
    position: relative; padding-left: 20px; font-size: 13px; line-height: 1.5; color: var(--text);
}
.highlights li::before {
    content: ''; position: absolute; left: 0; top: 6px;
    width: 9px; height: 9px; border-radius: 50%; background: var(--blue);
}
.highlights li.hl-good::before { background: var(--green); }
.highlights li.hl-bad::before  { background: var(--red); }
.highlights li.hl-neutral::before { background: var(--blue); }
.highlights li.hl-good b  { color: var(--green); }
.highlights li.hl-bad b   { color: var(--red); }
.highlights li b { color: var(--navy); }

.note { text-align: center; color: var(--muted); font-size: 11px; font-style: italic; padding: 8px 0 14px; }

/* RESPONSIVE */
@media (max-width: 1100px) {
    .kpis { grid-template-columns: repeat(3, 1fr); }
    .grid-3, .grid-3b, .grid-2 { grid-template-columns: 1fr; }
    .topbar { grid-template-columns: 1fr; gap: 10px; text-align: center; }
    .brand, .report-date { justify-self: center; }
}
@media (max-width: 560px) { .kpis { grid-template-columns: repeat(2, 1fr); } }

/* Yükleniyor durumu */
.loading { opacity: .5; transition: opacity .2s; }

/* ÜST NAVİGASYON */
.topnav {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--navy); border-radius: 12px; padding: 8px 16px;
    margin-bottom: 14px; box-shadow: var(--shadow); color: #fff;
}
.topnav-brand { display: flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: .5px; color: #fff; }
.topnav-brand .logo { width: 38px; height: 22px; color: #cfe0f2; }
.topnav-tabs { display: flex; gap: 6px; }
.topnav-tabs a {
    color: #cdd9e6; text-decoration: none; font-size: 13px; font-weight: 600;
    padding: 8px 16px; border-radius: 8px; transition: background .15s, color .15s;
}
.topnav-tabs a:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.topnav-tabs a.active { background: var(--blue); color: #fff; }
.topnav-user { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.topnav-user > span { opacity: .85; }
.topnav-user .logout {
    color: #fff; text-decoration: none; font-weight: 600; font-size: 12px;
    border: 1px solid rgba(255, 255, 255, .25); padding: 6px 12px; border-radius: 8px;
}
.topnav-user .logout:hover { background: rgba(255, 255, 255, .12); }

/* GİRİŞ SAYFASI */
.login-body {
    min-height: 100vh; margin: 0;
    display: flex; align-items: center; justify-content: center;
    background: radial-gradient(1200px 700px at 50% -10%, #20486f, var(--navy) 65%);
    padding: 20px;
}
.login-wrap { width: 100%; max-width: 390px; text-align: center; margin: auto; }
.login-card {
    background: #fff; border-radius: 16px; padding: 34px 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .35);
}
.login-brand { margin-bottom: 22px; color: var(--navy); }
.login-brand .logo { width: 64px; height: 38px; }
.login-brand h1 { font-size: 26px; font-weight: 800; letter-spacing: 1px; margin-top: 6px; }
.login-brand p { font-size: 12px; color: var(--muted); letter-spacing: 2px; margin-top: 2px; }
.login-form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.login-form label { font-size: 12px; font-weight: 600; color: var(--navy); display: flex; flex-direction: column; gap: 6px; }
.login-form input {
    padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
    font-size: 14px; outline: none; transition: border-color .15s;
}
.login-form input:focus { border-color: var(--blue); }
.login-form button {
    margin-top: 6px; background: var(--navy); color: #fff; border: 0; border-radius: 10px;
    padding: 13px; font-size: 15px; font-weight: 700; cursor: pointer; transition: background .15s;
}
.login-form button:hover { background: var(--blue); }
.login-error {
    background: #fdecea; color: var(--red); border: 1px solid #f5c6c2;
    border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 16px;
}
.login-hint { margin-top: 18px; font-size: 12px; color: var(--muted); }
.login-hint strong { color: var(--navy); }
.login-foot { color: rgba(255, 255, 255, .6); font-size: 11px; margin-top: 18px; }

/* Genel gider - bütçe hedef kartı */
.kpi-target { background: linear-gradient(180deg, #f3f8fe, #eaf2fb); }
.kpi-target .kpi-value { color: var(--blue); }

/* Genel gider - yeşil tikli notlar */
.highlights li.ok::before {
    content: '✓'; background: transparent; color: var(--green); font-weight: 800;
    width: auto; height: auto; top: 0; font-size: 14px;
}

/* Logo görseli (yüklenmişse) */
.logo-img { height: 38px; width: auto; max-width: 150px; object-fit: contain; }
.logo-img.nav { height: 30px; max-width: 120px; }

/* Filtre aksiyon butonları */
.filter-actions { display: flex; gap: 8px; align-items: flex-end; margin-left: auto; }
.btn-export {
    background: #fff; color: var(--navy); border: 1px solid var(--border); border-radius: 8px;
    padding: 10px 14px; font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.btn-export:hover { background: #eaf2fb; border-color: var(--blue); color: var(--blue); }

/* Ayarlar sayfası */
.settings-card { max-width: 560px; margin: 0 auto; }
.settings-ok {
    background: #e8f6ee; color: var(--green); border: 1px solid #bfe3cd;
    border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 14px;
}
.settings-preview {
    display: flex; align-items: center; gap: 14px; padding: 16px; margin-bottom: 16px;
    background: #f7f9fc; border: 1px dashed var(--border); border-radius: 10px; font-size: 13px;
}
.settings-preview img { max-height: 56px; max-width: 200px; object-fit: contain; }
.settings-preview em { color: var(--muted); }
.settings-form { display: flex; flex-direction: column; gap: 12px; max-width: 420px; }
.settings-form label { font-size: 13px; font-weight: 600; color: var(--navy); display: flex; flex-direction: column; gap: 8px; }
.settings-form input[type=file] { font-size: 13px; }
.settings-form button, .btn-danger {
    align-self: flex-start; background: var(--navy); color: #fff; border: 0; border-radius: 8px;
    padding: 11px 22px; font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 4px;
}
.settings-form button:hover { background: var(--blue); }
.btn-danger { background: var(--red); margin-top: 14px; }
.btn-danger:hover { background: #b6362f; }

/* "Örnek görünüm" bilgi şeridi (henüz veri girişi olmayan modüller için) */
.preview-note {
    display: flex; align-items: center; gap: 12px;
    background: #fdf6e9; border: 1px solid #f0dcb4; border-left: 4px solid #b9791a;
    border-radius: 10px; padding: 11px 16px; margin-bottom: 14px;
    font-size: 13px; color: #6b4a11; line-height: 1.5;
}
.preview-note .preview-text { flex: 1; min-width: 0; }
.preview-badge {
    background: #b9791a; color: #fff; font-size: 10.5px; font-weight: 800;
    letter-spacing: 1px; padding: 4px 10px; border-radius: 6px; white-space: nowrap;
}
.preview-note strong { color: #6b4a11; }
@media print { .preview-note { display: none; } }

/* Boş durum uyarısı */
.empty-state {
    background: #fff7e6; border: 1px solid #ffe0a3; color: #8a5a00;
    border-radius: 12px; padding: 14px 18px; margin-bottom: 14px; font-size: 14px;
}
.empty-state a { color: var(--blue); font-weight: 600; }

/* ====== ADMIN PANEL ====== */
.admin-link { background: var(--blue); border-color: var(--blue) !important; }
.admin-wrap { max-width: 1100px; margin: 0 auto; }
.admin-h { color: var(--navy); font-size: 20px; font-weight: 800; margin: 4px 0 14px; }
.admin-h-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.admin-h-row .admin-h { margin: 0; }
.admin-note { color: var(--muted); font-size: 13px; margin-bottom: 14px; }

.admin-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat-card {
    background: #fff; border-radius: 12px; padding: 18px; box-shadow: var(--shadow);
    display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 13px; font-weight: 600;
}
.stat-card span { font-size: 24px; font-weight: 800; color: var(--navy); }

.admin-quick { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-primary, .btn-secondary {
    display: inline-block; text-decoration: none; border: 0; cursor: pointer;
    border-radius: 8px; padding: 11px 18px; font-size: 14px; font-weight: 600;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--blue); }
.btn-secondary { background: #eaf2fb; color: var(--navy); border: 1px solid var(--border); }
.btn-secondary:hover { background: #dbe9f8; }

.admin-table th { font-size: 11px; }
.admin-table td { font-size: 12.5px; }
.row-actions { white-space: nowrap; }
.row-actions a { color: var(--blue); text-decoration: none; font-weight: 600; margin: 0 6px; }
.row-actions a.danger { color: var(--red); }
.badge { background: #eceff3; color: var(--muted); border-radius: 20px; padding: 3px 10px; font-size: 11px; font-weight: 600; }
.badge.ok { background: #e8f6ee; color: var(--green); }

.admin-form { display: flex; flex-direction: column; gap: 14px; }
.admin-form label { font-size: 13px; font-weight: 600; color: var(--navy); display: flex; flex-direction: column; gap: 6px; }
.admin-form input[type=text], .admin-form input[type=date], .admin-form select {
    padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; font-family: inherit;
}
.admin-form input:focus, .admin-form select:focus { border-color: var(--blue); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.admin-form label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 500; }
.admin-form label.check input { width: auto; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }

.admin-filter { margin-bottom: 12px; }
.admin-filter select { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; min-width: 280px; }

.pager { display: flex; gap: 6px; flex-wrap: wrap; padding: 12px 4px 2px; }
.pager a { padding: 6px 11px; border: 1px solid var(--border); border-radius: 6px; text-decoration: none; color: var(--navy); font-size: 13px; }
.pager a.active { background: var(--navy); color: #fff; border-color: var(--navy); }

.import-card { max-width: 720px; }
.import-help { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text); }
.import-help h4 { color: var(--navy); margin-bottom: 6px; }
.import-help p { color: var(--muted); margin-bottom: 10px; }
.import-help ul { padding-left: 18px; display: flex; flex-direction: column; gap: 6px; }
.import-help a { color: var(--blue); }

@media (max-width: 720px) {
    .admin-stats { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
}

/* YAZDIRMA (PDF) */
@media print {
    body { background: #fff; }
    .topnav, .filters, .note { display: none !important; }
    .dashboard { max-width: 100%; padding: 0; }
    .card, .kpi { box-shadow: none; border: 1px solid #d8dee6; break-inside: avoid; }
    .grid-3, .grid-3b, .grid-2 { break-inside: avoid; }
    .topbar { box-shadow: none; border: 1px solid #d8dee6; }
    @page { size: A4 landscape; margin: 10mm; }
}