:root {
    --cf-primary: #0d5c8f;
    --cf-primary-dark: #0a4a73;
    --cf-primary-light: #eaf3fa;
    --cf-accent: #14b8a6;
    --cf-sidebar-bg: #0f2438;
    --cf-sidebar-bg2: #16324b;
    --cf-sidebar-hover: rgba(255,255,255,.06);
    --cf-sidebar-active: #1668a5;
    --cf-sidebar-text: #a9bccd;
    --cf-sidebar-width: 258px;
    --cf-topbar-h: 62px;
    --cf-body-bg: #f1f5f9;
    --cf-surface: #ffffff;
    --cf-border: #e6ebf1;
    --cf-text: #1f2b3a;
    --cf-muted: #64748b;
    --cf-radius: 14px;
    --cf-shadow-sm: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.05);
    --cf-shadow: 0 4px 14px rgba(16,24,40,.07);
    --cf-shadow-lg: 0 12px 34px rgba(16,24,40,.12);
}

html, body { height: 100%; }

body {
    background-color: var(--cf-body-bg);
    color: var(--cf-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: .9rem;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: var(--cf-primary); }
a:hover { color: var(--cf-primary-dark); }

/* Scrollbar */
* { scrollbar-width: thin; scrollbar-color: #c7d2dd transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-thumb { background: #c7d2dd; border-radius: 20px; }
*::-webkit-scrollbar-thumb:hover { background: #a9b8c7; }

/* ---------- Buttons ---------- */
.btn { --bs-btn-border-radius: 10px; font-weight: 500; }
.btn-primary {
    --bs-btn-bg: var(--cf-primary);
    --bs-btn-border-color: var(--cf-primary);
    --bs-btn-hover-bg: var(--cf-primary-dark);
    --bs-btn-hover-border-color: var(--cf-primary-dark);
    --bs-btn-active-bg: var(--cf-primary-dark);
    --bs-btn-active-border-color: var(--cf-primary-dark);
    border: 0;
    background-image: linear-gradient(135deg, #2b8fd0 0%, #0d5c8f 100%);
    box-shadow: 0 4px 12px rgba(13,92,143,.32);
}
.btn-primary:hover { background-image: linear-gradient(135deg, #2483c4 0%, #0a4a73 100%); box-shadow: 0 6px 16px rgba(13,92,143,.4); }
.btn-sm { --bs-btn-border-radius: 8px; }

.text-cf-primary { color: var(--cf-primary) !important; }
.bg-cf-primary { background-color: var(--cf-primary) !important; }
.bg-cf-primary { background-image: linear-gradient(135deg, var(--cf-primary), var(--cf-primary-dark)); }

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.app-sidebar {
    width: var(--cf-sidebar-width);
    background: linear-gradient(165deg, #1e3a8a 0%, #124a86 42%, #0d6d8f 78%, #0f7d76 100%);
    color: var(--cf-sidebar-text);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 1030;
    transition: transform .25s ease;
    overflow-y: auto;
    box-shadow: 2px 0 16px rgba(0,0,0,.06);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: 1rem 1.25rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.07);
    min-height: var(--cf-topbar-h);
}

.brand-logo {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--cf-primary), #1a7cbf);
    color: #fff; border-radius: 10px; font-weight: 800; font-size: .95rem;
    box-shadow: 0 4px 10px rgba(13,92,143,.4);
}
.brand-text { letter-spacing: .2px; }

.sidebar-nav { padding: .4rem .55rem .6rem; flex: 1; }

.sidebar-nav .nav-link {
    display: flex; align-items: center; gap: .65rem;
    padding: .4rem .75rem;
    margin: .05rem 0;
    color: var(--cf-sidebar-text);
    font-weight: 500;
    font-size: .855rem;
    border-radius: 9px;
    position: relative;
    transition: background .15s ease, color .15s ease;
}
.sidebar-nav .nav-link i { font-size: 1.02rem; width: 19px; text-align: center; opacity: .9; }
.sidebar-nav .nav-link:hover { background: var(--cf-sidebar-hover); color: #fff; }
.sidebar-nav .nav-link.active {
    background: linear-gradient(135deg, var(--cf-sidebar-active), #0f5285);
    color: #fff;
    box-shadow: 0 4px 12px rgba(22,104,165,.35);
}
.sidebar-nav .nav-link.active i { opacity: 1; }

.sidebar-section {
    padding: .55rem .9rem .2rem;
    font-size: .64rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #7a93aa;
    font-weight: 700;
}

/* Yüksek ekranlarda (≥1080) menü daha da ferah olabilir; kısa ekranlarda taşarsa kaydırılır */
@media (min-height: 900px) {
    .sidebar-nav .nav-link { padding: .48rem .75rem; }
}

/* ---------- Main ---------- */
.app-main { flex: 1; margin-left: var(--cf-sidebar-width); display: flex; flex-direction: column; min-width: 0; }

.app-topbar {
    height: var(--cf-topbar-h);
    background: rgba(255,255,255,.85);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--cf-border);
    display: flex; align-items: center; gap: 1rem;
    padding: 0 1.5rem;
    position: sticky; top: 0; z-index: 1020;
}
.topbar-title { font-size: 1.05rem; font-weight: 650; color: var(--cf-text); letter-spacing: .1px; }
.topbar-right { margin-left: auto; }
.sidebar-toggle { display: none; }

.app-content { padding: 1.6rem; flex: 1; }

.app-footer {
    padding: .9rem 1.6rem;
    color: #8595a7;
    font-size: .8rem;
    border-top: 1px solid var(--cf-border);
    background: var(--cf-surface);
}

/* ---------- Cards ---------- */
.card {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    box-shadow: var(--cf-shadow-sm);
    background: var(--cf-surface);
}
.card-header {
    background: transparent;
    border-bottom: 1px solid var(--cf-border);
    font-weight: 650;
    padding: .85rem 1.1rem;
}
.card-body { padding: 1.1rem; }

.page-header {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: .75rem; margin-bottom: 1.35rem;
}
.page-header h1 {
    font-size: 1.4rem; font-weight: 680; margin: 0; letter-spacing: -.2px;
    display: flex; align-items: center;
}
.page-header h1 .bi { color: var(--cf-primary); }

/* ---------- Tables ---------- */
.table { --bs-table-hover-bg: var(--cf-primary-light); margin-bottom: 0; }
.table > :not(caption) > * > * { padding: .7rem .9rem; }
.table thead th {
    font-size: .74rem; text-transform: uppercase; letter-spacing: .04em;
    color: var(--cf-muted); font-weight: 700;
    background: #f8fafc; border-bottom: 1px solid var(--cf-border);
}
.table tbody tr { border-color: #eef2f6; }
.table-hover tbody tr:hover { background: var(--cf-primary-light); }
.table .btn-sm { padding: .2rem .45rem; }

/* Card that wraps a table: round the corners nicely */
.card > .table-responsive:last-child .table tbody tr:last-child td { border-bottom: 0; }

/* ---------- Badges ---------- */
.badge { font-weight: 600; letter-spacing: .2px; border-radius: 7px; padding: .34em .6em; }

/* ---------- Stat cards ---------- */
.stat-card {
    border-radius: var(--cf-radius);
    padding: 1.15rem 1.25rem;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    box-shadow: var(--cf-shadow-sm);
    height: 100%;
    transition: transform .18s ease, box-shadow .18s ease;
    position: relative;
    overflow: hidden;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--cf-shadow); }
.stat-card .stat-label {
    font-size: .76rem; color: var(--cf-muted);
    text-transform: uppercase; letter-spacing: .04em; font-weight: 600;
}
.stat-card .stat-value { font-size: 1.55rem; font-weight: 750; margin-top: .3rem; letter-spacing: -.4px; }
.stat-card .stat-icon {
    float: right; width: 48px; height: 48px; border-radius: 13px;
    display: inline-flex; align-items: center; justify-content: center; font-size: 1.35rem;
    color: #fff !important;
    box-shadow: 0 6px 16px rgba(16,24,40,.16);
}

/* Canlı ikon rozetleri — subtle bg sınıflarını parlak degradeye çevir */
.stat-icon.bg-primary-subtle { background-image: linear-gradient(135deg,#60a5fa,#2563eb) !important; }
.stat-icon.bg-success-subtle { background-image: linear-gradient(135deg,#4ade80,#16a34a) !important; }
.stat-icon.bg-danger-subtle  { background-image: linear-gradient(135deg,#fb7185,#e11d48) !important; }
.stat-icon.bg-info-subtle    { background-image: linear-gradient(135deg,#38bdf8,#0284c7) !important; }
.stat-icon.bg-warning-subtle { background-image: linear-gradient(135deg,#fcd34d,#f59e0b) !important; }
.stat-icon.bg-secondary-subtle { background-image: linear-gradient(135deg,#94a3b8,#475569) !important; }

/* Renkli üst şeritli + hafif tonlu istatistik kartları */
.stat-card.accent { border-top: 3px solid #94a3b8; }
.stat-card.accent-blue   { border-top: 3px solid #3b82f6; background-image: linear-gradient(180deg,#eff6ff, #fff 62%); }
.stat-card.accent-green  { border-top: 3px solid #22c55e; background-image: linear-gradient(180deg,#ecfdf5, #fff 62%); }
.stat-card.accent-red    { border-top: 3px solid #f43f5e; background-image: linear-gradient(180deg,#fff1f2, #fff 62%); }
.stat-card.accent-cyan   { border-top: 3px solid #06b6d4; background-image: linear-gradient(180deg,#ecfeff, #fff 62%); }
.stat-card.accent-amber  { border-top: 3px solid #f59e0b; background-image: linear-gradient(180deg,#fffbeb, #fff 62%); }
.stat-card.accent-violet { border-top: 3px solid #8b5cf6; background-image: linear-gradient(180deg,#f5f3ff, #fff 62%); }
.stat-card.accent-teal   { border-top: 3px solid #14b8a6; background-image: linear-gradient(180deg,#f0fdfa, #fff 62%); }

/* İkon rengine göre otomatik renkli kart (dashboard) — :has() ile, markup değişmeden */
.stat-card:has(.stat-icon.bg-primary-subtle)  { border-top: 3px solid #3b82f6; background-image: linear-gradient(180deg,#eff6ff,#fff 60%); }
.stat-card:has(.stat-icon.bg-success-subtle)  { border-top: 3px solid #22c55e; background-image: linear-gradient(180deg,#ecfdf5,#fff 60%); }
.stat-card:has(.stat-icon.bg-danger-subtle)   { border-top: 3px solid #f43f5e; background-image: linear-gradient(180deg,#fff1f2,#fff 60%); }
.stat-card:has(.stat-icon.bg-info-subtle)     { border-top: 3px solid #06b6d4; background-image: linear-gradient(180deg,#ecfeff,#fff 60%); }
.stat-card:has(.stat-icon.bg-warning-subtle)  { border-top: 3px solid #f59e0b; background-image: linear-gradient(180deg,#fffbeb,#fff 60%); }
.stat-card:has(.stat-icon.bg-secondary-subtle){ border-top: 3px solid #64748b; background-image: linear-gradient(180deg,#f8fafc,#fff 60%); }

/* Renkli ilerleme çubukları */
.progress-bar, .bg-cf-primary.progress-bar, .progress-bar.bg-cf-primary {
    background-image: linear-gradient(90deg, #2b8fd0, #14b8a6) !important;
}

/* Kart başlıklarına hafif renkli vurgu (renkli arka planlı başlıklar hariç) */
.card-header:not([class*="bg-"]) { background-image: linear-gradient(180deg, #fbfdff, #ffffff); }

/* ---------- Forms ---------- */
.form-label { font-weight: 550; font-size: .82rem; color: #45566a; margin-bottom: .3rem; }
.form-control, .form-select { border-radius: 10px; border-color: #dbe3ec; }
.form-control:focus, .form-select:focus {
    border-color: var(--cf-primary);
    box-shadow: 0 0 0 .2rem rgba(13,92,143,.15);
}
.form-control-sm, .form-select-sm { border-radius: 8px; }
.input-group-text { border-radius: 10px; }

/* Nav pills (settings) */
.nav-pills .nav-link { color: var(--cf-text); border-radius: 10px; font-weight: 550; }
.nav-pills .nav-link:hover { background: var(--cf-primary-light); }
.nav-pills .nav-link.active { background: var(--cf-primary); box-shadow: 0 3px 10px rgba(13,92,143,.3); }

/* Tabs */
.nav-tabs .nav-link { color: var(--cf-muted); font-weight: 550; border: 0; border-bottom: 2px solid transparent; }
.nav-tabs .nav-link:hover { color: var(--cf-primary); border-color: transparent; }
.nav-tabs .nav-link.active { color: var(--cf-primary); background: transparent; border-bottom: 2px solid var(--cf-primary); }

/* Progress */
.progress { border-radius: 20px; background: #eef2f6; }
.progress-bar { border-radius: 20px; }

/* Alerts */
.alert { border-radius: 12px; border: 1px solid transparent; }

/* Modals */
.modal-content { border: 0; border-radius: 16px; box-shadow: var(--cf-shadow-lg); }
.modal-header { border-bottom-color: var(--cf-border); }
.modal-footer { border-top-color: var(--cf-border); }

/* Dropdowns */
.dropdown-menu { border: 1px solid var(--cf-border); border-radius: 12px; box-shadow: var(--cf-shadow); }

/* Brand image in sidebar */
.brand-img { max-height: 40px; max-width: 190px; object-fit: contain; background: #fff; border-radius: 8px; padding: 3px 7px; }

/* ---------- Auth ---------- */
.auth-body {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: radial-gradient(1200px 600px at 10% -10%, #1a7cbf 0%, transparent 55%),
                linear-gradient(135deg, #0d5c8f 0%, #0f2438 100%);
    padding: 1rem;
}
.auth-card {
    background: #fff; width: 100%; max-width: 420px; border-radius: 18px; overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.auth-brand { text-align: center; padding: 2.2rem 2rem 1rem; }
.auth-logo {
    width: 60px; height: 60px; margin: 0 auto .8rem;
    background: linear-gradient(135deg, var(--cf-primary), #1a7cbf);
    color: #fff; border-radius: 16px; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.5rem; box-shadow: 0 8px 20px rgba(13,92,143,.45);
}
.auth-logo-img { max-height: 72px; max-width: 230px; object-fit: contain; margin: 0 auto .8rem; display: block; }
.auth-brand h1 { font-size: 1.35rem; font-weight: 720; margin: 0; letter-spacing: -.3px; }
.auth-brand p { color: var(--cf-muted); font-size: .82rem; margin: .4rem 0 0; }
.auth-form { padding: .5rem 2rem 1.6rem; }
.auth-footer { text-align: center; padding: 1rem; background: #f8fafc; color: #94a3b8; font-size: .78rem; border-top: 1px solid var(--cf-border); }

/* ---------- Utilities ---------- */
.text-muted { color: var(--cf-muted) !important; }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .app-sidebar { transform: translateX(-100%); box-shadow: 6px 0 24px rgba(0,0,0,.25); }
    .app-sidebar.show { transform: translateX(0); }
    .app-main { margin-left: 0; }
    .sidebar-toggle { display: inline-flex; }
    .app-content { padding: 1.1rem; }
}

.sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(8,20,33,.5); z-index: 1025; backdrop-filter: blur(1px); }
.sidebar-backdrop.show { display: block; }

/* Subtle entrance for content */
.app-content > * { animation: cfFade .25s ease; }
@keyframes cfFade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---- Sayfa Kilavuzu (Page Guide) ---- */
.page-guide {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    background: var(--cf-primary-light, #eaf3fa);
    border: 1px solid #cfe3f2;
    border-left: 4px solid var(--cf-primary, #0d5c8f);
    border-radius: 12px;
    padding: .85rem 1rem;
    margin-bottom: 1rem;
    position: relative;
}
.page-guide .pg-icon { color: var(--cf-primary, #0d5c8f); font-size: 1.25rem; line-height: 1.4; }
.page-guide .pg-title { font-weight: 700; color: #123; }
.page-guide .pg-title .pg-sub { font-weight: 400; color: #6b7a8d; font-size: .9rem; }
.page-guide .pg-text { color: #33465a; margin-top: .15rem; }
.page-guide .pg-tips { margin: .4rem 0 0; padding-left: 1.1rem; color: #47586b; font-size: .875rem; }
.page-guide .pg-tips li { margin: .1rem 0; }
.page-guide .pg-close {
    position: absolute; top: .5rem; right: .5rem;
    background: transparent; border: 0; color: #7d8ea0;
    width: 28px; height: 28px; border-radius: 8px; cursor: pointer;
}
.page-guide .pg-close:hover { background: rgba(0,0,0,.06); color: #333; }

/* ---- Sidebar: slogan + kullanici karti (bos alan doldurma) ---- */
.sidebar-tagline {
    color: #7f97ac;
    font-size: .68rem;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    padding: 0 1.25rem .6rem;
    margin-top: -.35rem;
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin: 0 .7rem .55rem;
    padding: .55rem .6rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 14px;
    text-decoration: none;
    transition: background .15s ease;
}
.sidebar-user:hover { background: rgba(255,255,255,.10); }
.su-avatar {
    width: 40px; height: 40px; flex: 0 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cf-primary), #1a7cbf);
    color: #fff; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    box-shadow: 0 3px 8px rgba(0,0,0,.25);
}
.su-avatar img { width: 100%; height: 100%; object-fit: cover; }
.su-info { min-width: 0; flex: 1; }
.su-name {
    color: #eaf1f8; font-weight: 600; font-size: .9rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.su-role {
    font-size: .72rem; color: #8fa6ba;
    display: flex; align-items: center; gap: .35rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.su-dot { width: 7px; height: 7px; border-radius: 50%; background: #22c55e; display: inline-block; flex: 0 0 auto; box-shadow: 0 0 0 2px rgba(34,197,94,.25); }
.su-arrow { color: #6b8299; font-size: .8rem; flex: 0 0 auto; }