:root {
    --primary: #124d98;
    --primary-2: #0b2f5b;
    --primary-soft: #eaf2ff;
    --accent: #ff8a34;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --info: #0284c7;
    --bg: #f4f7fb;
    --card: #ffffff;
    --text: #142033;
    --muted: #6b7280;
    --border: #d9e2ef;
    --shadow: 0 18px 50px rgba(15, 23, 42, .08);
    --radius: 18px;
    --sidebar-w: 290px;
    --sidebar-collapsed: 84px;
}

* { box-sizing: border-box; }
html { font-size: 15px; }
body {
    margin: 0;
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(18,77,152,.10), transparent 22%),
        linear-gradient(180deg, #f7faff 0%, var(--bg) 100%);
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-2); }
img { max-width: 100%; }

.layout { min-height: 100vh; }
.sidebar {
    position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
    background: linear-gradient(180deg, #0a2345 0%, #0e3567 100%);
    color: #dbe7ff; display: flex; flex-direction: column;
    box-shadow: 10px 0 40px rgba(2, 9, 23, .12); z-index: 40;
    transition: width .25s ease, transform .25s ease;
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }
.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-section,
.sidebar.collapsed .sidebar-user-card strong,
.sidebar.collapsed .sidebar-user-card span { display: none; }
.sidebar.collapsed .brand-link { justify-content: center; }
.sidebar.collapsed .sidebar-user-card { justify-content: center; }
.brand-link {
    display: flex; align-items: center; gap: 14px; padding: 24px 22px 18px;
    border-bottom: 1px solid rgba(255,255,255,.08); color: #fff;
}
.sidebar-logo { width: 56px; height: 56px; object-fit: contain; background: rgba(255,255,255,.95); border-radius: 16px; padding: 8px; }
.sidebar-logo-fallback {
    width: 56px; height: 56px; border-radius: 16px;
    display: grid; place-items: center; font-size: 1.4rem;
    background: linear-gradient(135deg, #e0ecff, #a8cbff); color: var(--primary-2);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
}
.sidebar-brand strong { display: block; font-size: 1rem; }
.sidebar-brand span { display: block; margin-top: 3px; font-size: .82rem; color: #a8c3ef; }
.sidebar-nav { padding: 18px 14px; overflow-y: auto; flex: 1; }
.nav-section { padding: 14px 12px 8px; text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; color: #8fb1e6; font-weight: 700; }
.nav-item {
    display: flex; align-items: center; gap: 12px; padding: 12px 14px; margin: 4px 0;
    border-radius: 14px; color: #dbe7ff; transition: .2s ease;
}
.nav-item i { width: 18px; text-align: center; }
.nav-item:hover, .nav-item.active {
    background: rgba(255,255,255,.12); color: #fff; transform: translateX(1px);
}
.nav-item.active { box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.sidebar-footer { padding: 16px 14px 18px; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar-user-card {
    display: flex; gap: 12px; align-items: center; padding: 14px; margin-bottom: 10px;
    border-radius: 16px; background: rgba(255,255,255,.08);
}
.sidebar-user-card strong { display:block; color:#fff; font-size:.92rem; }
.sidebar-user-card span { display:block; color:#a8c3ef; font-size:.78rem; margin-top:2px; }
.avatar {
    width: 42px; height: 42px; border-radius: 50%; display:grid; place-items:center;
    background: linear-gradient(135deg, #fff, #c9dcff); color: var(--primary-2); font-weight: 800;
}
.logout:hover { background: rgba(220,38,38,.18); color: #fff; }

.main-content { margin-left: var(--sidebar-w); min-height: 100vh; transition: margin-left .25s ease; }
.sidebar.collapsed ~ .main-content { margin-left: var(--sidebar-collapsed); }
.topbar {
    position: sticky; top: 0; z-index: 20;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 28px; backdrop-filter: blur(10px);
    background: rgba(255,255,255,.78); border-bottom: 1px solid rgba(217,226,239,.8);
}
.topbar-left { display: flex; gap: 14px; align-items: center; }
.topbar-title { font-weight: 800; font-size: 1.08rem; }
.topbar-subtitle { color: var(--muted); font-size: .86rem; margin-top: 4px; }
.sidebar-toggle {
    border: none; background: #fff; color: var(--primary); width: 44px; height: 44px;
    border-radius: 14px; box-shadow: var(--shadow); cursor: pointer;
}
.user-pill {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px;
    border-radius: 999px; background: #fff; box-shadow: var(--shadow); color: var(--muted); font-weight: 600;
}
.page-content { padding: 28px; }
.page-title {
    display: flex; align-items: center; gap: 10px; margin-bottom: 22px;
    font-weight: 800; font-size: 1.4rem; color: var(--primary-2);
}
.page-intro {
    margin: -10px 0 22px; color: var(--muted); max-width: 900px; line-height: 1.6;
}
.hero-panel {
    position: relative; overflow: hidden; padding: 28px; margin-bottom: 24px; border-radius: 24px;
    background: linear-gradient(135deg, #0e3567 0%, #124d98 50%, #2f7be0 100%); color: #fff; box-shadow: var(--shadow);
}
.hero-panel::after {
    content: ''; position: absolute; width: 240px; height: 240px; border-radius: 50%;
    background: rgba(255,255,255,.08); right: -80px; top: -90px;
}
.hero-panel h1, .hero-panel h2 { margin: 0 0 10px; font-size: 1.7rem; }
.hero-panel p { margin: 0; max-width: 760px; line-height: 1.7; color: rgba(255,255,255,.92); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

.card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow); margin-bottom: 22px; overflow: hidden;
}
.card-header {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 18px 22px; background: linear-gradient(180deg, #fff, #f9fbff); border-bottom: 1px solid var(--border);
}
.card-header h2, .card-header h3 { margin: 0; font-size: 1rem; color: var(--primary-2); }
.card-body { padding: 22px; }

.stats-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px;
}
.stat-card {
    background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow);
    padding: 20px; display: flex; gap: 14px; align-items: center; min-height: 108px;
}
.stat-icon {
    width: 52px; height: 52px; border-radius: 16px; display:grid; place-items:center; font-size: 1.15rem;
}
.stat-icon.blue{background:#e7f0ff;color:#124d98}.stat-icon.green{background:#e8f8ef;color:#16a34a}.stat-icon.orange{background:#fff1df;color:#ff8a34}.stat-icon.red{background:#fee8e8;color:#dc2626}
.stat-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; }
.stat-value { margin-top: 6px; font-size: 1.45rem; font-weight: 800; }
.stat-subtext { margin-top: 6px; color: var(--muted); font-size: .82rem; }

.grid-2 { display: grid; grid-template-columns: 1.4fr .9fr; gap: 22px; }
.quick-links { display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 14px; }
.quick-link {
    display:block; padding:18px; border:1px solid var(--border); border-radius:18px; background:#fff; box-shadow: var(--shadow);
}
.quick-link strong { display:block; margin-bottom:8px; color:var(--primary-2); }
.quick-link p { margin:0; color:var(--muted); line-height:1.55; font-size:.92rem; }

.search-bar { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:18px; }
input, select, textarea {
    width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 14px;
    background: #fff; color: var(--text); font: inherit; outline: none; transition: .2s ease;
}
input:focus, select:focus, textarea:focus { border-color: #7aaeff; box-shadow: 0 0 0 4px rgba(47,123,224,.12); }
textarea { resize: vertical; min-height: 90px; }
label { display:block; margin-bottom: 8px; font-weight: 700; color: var(--primary-2); font-size: .9rem; }
.form-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.form-group.full { grid-column: 1 / -1; }
.flex-between { display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap; }
.w-100 { width:100%; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: 1px solid transparent; border-radius: 14px; cursor: pointer;
    padding: 11px 16px; font: inherit; font-weight: 700; transition: .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 8px 12px; border-radius: 12px; font-size: .88rem; }
.btn-icon { width: 38px; height: 38px; padding: 0; }
.btn-primary { background: linear-gradient(135deg, #124d98, #2f7be0); color: #fff; }
.btn-success { background: linear-gradient(135deg, #138a41, #1bb556); color: #fff; }
.btn-warning { background: linear-gradient(135deg, #d97706, #f59e0b); color: #fff; }
.btn-danger { background: linear-gradient(135deg, #c81e1e, #ef4444); color: #fff; }
.btn-info { background: linear-gradient(135deg, #0369a1, #0ea5e9); color: #fff; }
.btn-outline { background: #fff; color: var(--primary-2); border-color: var(--border); }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
thead th {
    background: #f7faff; color: var(--primary-2); text-align: left; font-size: .82rem; text-transform: uppercase;
    letter-spacing: .05em; padding: 14px 14px; border-bottom: 1px solid var(--border);
}
tbody td { padding: 14px; border-bottom: 1px solid #edf2f8; vertical-align: middle; }
tbody tr:hover { background: #fbfdff; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.fw-bold { font-weight: 700; }

.badge {
    display: inline-flex; align-items: center; justify-content: center; padding: 8px 12px; border-radius: 999px;
    font-size: .78rem; font-weight: 800; text-transform: capitalize;
}
.badge-taslak { background: #eef2f7; color: #475569; }
.badge-gonderildi { background: #e0f2fe; color: #0369a1; }
.badge-onaylandi { background: #dcfce7; color: #166534; }
.badge-reddedildi { background: #fee2e2; color: #991b1b; }

.alert {
    display:flex; align-items:center; gap:10px; padding: 14px 16px; border-radius: 16px; margin-bottom: 16px; font-weight: 600;
    border: 1px solid transparent;
}
.alert-success { background: #edfdf3; color: #166534; border-color: #bbf7d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-info { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }

.totals-box { border: 1px solid var(--border); border-radius: 18px; background: #f8fbff; padding: 10px 14px; }
.totals-row { display:flex; justify-content:space-between; gap:20px; padding: 10px 4px; border-bottom: 1px dashed #d7e5f6; font-weight: 600; }
.totals-row:last-child { border-bottom: none; }
.total-row { color: var(--primary-2); font-size: 1rem; font-weight: 800; }
.remove-row-btn {
    width: 32px; height: 32px; border: none; border-radius: 10px; cursor: pointer; background: #fef2f2; color: #dc2626;
}

.login-wrap { min-height: 100vh; display:grid; place-items:center; padding: 24px; }
.login-card {
    width: 100%; max-width: 430px; padding: 30px; border-radius: 28px;
    background: rgba(255,255,255,.92); border: 1px solid rgba(255,255,255,.8); box-shadow: 0 30px 70px rgba(18,77,152,.16);
}
.login-logo { text-align:center; margin-bottom: 18px; }
.brand { font-size: 1.5rem; font-weight: 800; color: var(--primary-2); }
.sub { color: var(--muted); margin-top: 4px; }
.login-card h2 { margin: 0 0 18px; color: var(--primary-2); }

.modal-overlay {
    position: fixed; inset: 0; display: none; align-items: center; justify-content: center; padding: 20px;
    background: rgba(15, 23, 42, .5); z-index: 80;
}
.modal-overlay.active { display: flex; }
.modal {
    width: 100%; max-width: 720px; background: #fff; border-radius: 22px; box-shadow: var(--shadow);
    border: 1px solid var(--border); overflow: hidden;
}
.modal-header {
    display:flex; align-items:center; justify-content:space-between; gap:10px; padding:18px 22px; border-bottom:1px solid var(--border);
}
.modal-close { background:#f8fafc; border:none; width:36px; height:36px; border-radius:12px; cursor:pointer; }

.kpi-inline { display:flex; gap:12px; flex-wrap:wrap; margin-bottom: 16px; }
.kpi-chip {
    background:#fff; border:1px solid var(--border); border-radius: 999px; padding: 10px 14px; box-shadow: var(--shadow); font-weight:700; color: var(--primary-2);
}

@media (max-width: 1100px) {
    .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); width: min(86vw, 320px); }
    body.sidebar-open .sidebar { transform: translateX(0); }
    .main-content, .sidebar.collapsed ~ .main-content { margin-left: 0; }
    .form-grid { grid-template-columns: 1fr; }
    .page-content { padding: 18px; }
    .topbar { padding: 14px 18px; }
}
@media (max-width: 640px) {
    .hero-panel { padding: 22px; }
    .hero-panel h1, .hero-panel h2 { font-size: 1.4rem; }
    .stats-grid { grid-template-columns: 1fr; }
    .card-header, .card-body { padding-left: 16px; padding-right: 16px; }
    .search-bar > * { width: 100%; }
}


.mobile-sidebar-backdrop{display:none}
.page-intro{
    margin:-6px 0 18px;
    color:var(--muted);
    font-size:.98rem;
    line-height:1.65;
    max-width:980px;
}
.hero-panel{
    background:linear-gradient(135deg, rgba(18,77,152,.98), rgba(11,47,91,.96));
    color:#fff; border-radius:26px; padding:30px 32px; box-shadow:0 20px 50px rgba(11,47,91,.20);
    margin-bottom:22px;
}
.hero-panel h1{margin:0 0 10px;font-size:1.85rem;line-height:1.15}
.hero-panel p{margin:0;max-width:820px;color:rgba(255,255,255,.82);line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.hero-panel .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.08)}
.quick-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.quick-link{display:block;background:#fff;border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:var(--shadow);transition:.2s transform,.2s box-shadow,.2s border-color}
.quick-link:hover{transform:translateY(-3px);box-shadow:0 20px 45px rgba(15,23,42,.10);border-color:#bfd2f4}
.quick-link strong{display:block;margin-bottom:10px;font-size:1.02rem;color:var(--text)}
.quick-link p{margin:0;color:var(--muted);line-height:1.65}
.kpi-inline{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 18px}
.kpi-chip{background:#fff;border:1px solid #d9e7fb;color:var(--primary-2);padding:10px 14px;border-radius:999px;font-weight:700;box-shadow:0 10px 25px rgba(15,23,42,.04)}
.grid-2{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:20px}
.card-header .text-muted{font-size:.85rem}
.table-wrap table tbody td{line-height:1.5}
.btn-icon{min-width:34px;justify-content:center}
.stat-subtext{margin-top:4px;font-size:.82rem;color:var(--muted);line-height:1.45}
.topbar{backdrop-filter:blur(10px)}
.sidebar-user-card{display:flex;align-items:center;gap:12px;padding:0 18px 12px;color:#fff}
.sidebar-user-card .avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.16);font-weight:800}
.sidebar-user-card span{display:block;color:rgba(219,231,255,.70);font-size:.82rem;margin-top:2px}
@media (max-width: 980px){
    .grid-2{grid-template-columns:1fr}
}
@media (max-width: 768px){
    .page-content{padding:16px}
    .hero-panel{padding:22px}
    .hero-panel h1{font-size:1.45rem}
    .stats-grid{grid-template-columns:1fr}
    .quick-links{grid-template-columns:1fr}
    .topbar{padding:0 14px}
    .mobile-sidebar-backdrop{position:fixed;inset:0;background:rgba(2,8,23,.34);z-index:98;opacity:0;pointer-events:none;transition:.2s;display:block}
    body.sidebar-open .mobile-sidebar-backdrop{opacity:1;pointer-events:auto}
}


/* ---- Teklif Kalemleri: okunurluk iyileştirmeleri ---- */
.kalem-table { width: 100%; border-collapse: separate; border-spacing: 0; table-layout: fixed; }
.kalem-table th {
    background: #f3f7fd;
    color: var(--primary-2);
    padding: 16px 12px;
    font-size: 12px;
    text-align: center;
    letter-spacing: .08em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}
.kalem-table td { padding: 16px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.kalem-table select,
.kalem-table input,
.kalem-table textarea {
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
    border: 1px solid #d6e2f1;
    background: #fff;
    border-radius: 16px;
    padding: 14px 16px;
    font-size: 15px;
    color: var(--text);
    line-height: 1.2;
}
.kalem-table select { margin-bottom: 8px; }
.kalem-table .aciklama-input { font-weight: 600; }
.kalem-table .miktar-field,
.kalem-table .kdv-orani-field { text-align: center; }
.kalem-table .birim-field { text-align: center; }
.kalem-table .birim-fiyat-field { text-align: right; }
.kalem-table input[type=number]::-webkit-outer-spin-button,
.kalem-table input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.kalem-table input[type=number] { appearance: textfield; -moz-appearance: textfield; }
.kalem-table .stok-meta { display:block; margin-top: 8px; font-size: 12px; color: var(--muted); }
.kalem-table .kdv-tutar-field,
.kalem-table .toplam-field {
    display: inline-block;
    min-width: 110px;
    font-size: 15px;
    line-height: 1.35;
}
.kalem-table .toplam-field { color: var(--primary-2); }
#teklif-preview .preview-logo img { max-height: 110px; max-width: 300px; object-fit: contain; }
#teklif-preview .preview-brand { font-size: 30px; font-weight: 800; letter-spacing: .02em; color: var(--primary-2); }
#teklif-preview .preview-company-meta { font-size: 14px; line-height: 1.75; color: var(--text); }
#teklif-preview .preview-subline { font-size: 12px; color: var(--muted); margin-top: 4px; }
#teklif-preview .preview-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    margin-bottom: 18px;
}
#teklif-preview .preview-card table td { padding: 16px 18px; border-bottom: 1px solid var(--border); }
#teklif-preview .preview-card table tr:last-child td { border-bottom: 0; }
#teklif-preview .preview-item-title { font-weight: 700; color: var(--text); }
#teklif-preview .preview-item-note { display:block; margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.6; }
@media (max-width: 980px) {
    .kalem-table { table-layout: auto; }
    .kalem-table th, .kalem-table td { padding: 12px 8px; }
    .kalem-table select,
    .kalem-table input,
    .kalem-table textarea { padding: 12px 12px; font-size: 14px; }
}