:root {
    --navy-950: #0b1220;
    --navy-900: #111c31;
    --navy-800: #182640;
    --blue-700: #1d4ed8;
    --blue-600: #2563eb;
    --blue-100: #dbeafe;
    --green-700: #15803d;
    --green-600: #16a34a;
    --red-700: #b91c1c;
    --red-600: #dc2626;
    --orange-600: #d97706;
    --slate-900: #0f172a;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --page: #f5f7fb;
    --white: #ffffff;
    --sidebar-width: 254px;
    --radius: 10px;
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--page);
    color: var(--slate-900);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
}
a { color: var(--blue-700); text-decoration: none; }
a:hover { text-decoration: none; }

/* Sol menü */
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    padding: 20px 14px 14px;
    background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
    color: var(--white);
    border-right: 1px solid #263653;
    z-index: 1000;
}
.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 64px;
    padding: 8px 9px 20px;
    border-bottom: 1px solid rgba(255,255,255,.12);
}
.brand-mark {
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    flex: 0 0 43px;
    border: 1px solid #60a5fa;
    border-radius: 11px;
    background: var(--blue-600);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: .5px;
    box-shadow: 0 6px 18px rgba(37,99,235,.24);
}
.brand strong { display: block; font-size: 15px; }
.brand small { display: block; margin-top: 2px; color: #aebbd0; font-size: 11px; }
.side-nav { display: flex; flex-direction: column; gap: 7px; padding: 20px 0; overflow-y: auto; }
.side-nav a {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 44px;
    padding: 9px 11px;
    color: #d8e1ef;
    border: 1px solid rgba(148,163,184,.28);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: .16s ease;
}
.side-nav a:hover {
    color: #fff;
    background: rgba(37,99,235,.17);
    border-color: #60a5fa;
    transform: translateX(2px);
}
.side-nav a.active {
    color: #fff;
    background: var(--blue-600);
    border-color: #93c5fd;
    box-shadow: 0 6px 16px rgba(37,99,235,.25);
}
.nav-icon { width: 22px; text-align: center; font-size: 17px; }
.nav-section { margin: 11px 7px 0; color: #8190a8; font-size: 10px; font-weight: 800; letter-spacing: 1.2px; }
.sidebar-user {
    display: grid;
    grid-template-columns: 38px 1fr 32px;
    gap: 9px;
    align-items: center;
    margin-top: auto;
    padding: 12px 9px;
    border: 1px solid rgba(148,163,184,.25);
    border-radius: 9px;
    background: rgba(255,255,255,.055);
}
.user-avatar { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: #334155; border: 1px solid #64748b; font-weight: 800; }
.user-text { min-width: 0; }
.user-text strong, .user-text small { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-text strong { font-size: 13px; }
.user-text small { color: #aebbd0; font-size: 10px; }
.logout-button { width: 31px; height: 31px; display: grid; place-items: center; color: #fecaca; border: 1px solid rgba(248,113,113,.55); border-radius: 7px; }
.logout-button:hover { color: #fff; background: var(--red-600); border-color: #fca5a5; }

.container {
    width: auto;
    max-width: none;
    margin-left: var(--sidebar-width);
    padding: 30px 34px 50px;
}
.login-body .container { max-width: 560px; margin: 0 auto; padding-top: 80px; }
.mobile-menu-button, .mobile-overlay { display: none; }

/* Başlıklar ve kartlar */
h1, h2, h3 { color: var(--slate-900); line-height: 1.25; }
h1 { margin: 0 0 22px; font-size: clamp(24px, 2.4vw, 34px); letter-spacing: -.55px; }
h2 { margin: 28px 0 14px; font-size: 21px; }
h3 { margin: 25px 0 13px; font-size: 17px; }
p { color: var(--slate-600); }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 21px; }
.page-head h1 { margin: 0; }
.page-head p { margin: 5px 0 0; }
.form-card, .info-box, .table-wrap, .card {
    border: 1px solid var(--slate-300);
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 4px 14px rgba(15,23,42,.045);
}
.form-card { max-width: 980px; padding: 23px; }
.info-box { margin: 16px 0; padding: 15px 17px; border-left: 4px solid var(--blue-600); background: #f8fbff; color: var(--slate-700); }
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; margin: 20px 0; }
.card { position: relative; overflow: hidden; padding: 19px; }
.card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--blue-600); }
.card span { display: block; color: var(--slate-600); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .45px; }
.card strong { display: block; margin-top: 8px; font-size: 24px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }

/* Formlar */
label { display: block; margin: 0 0 6px; color: var(--slate-700); font-size: 13px; font-weight: 700; }
input, select, textarea {
    width: 100%;
    min-height: 42px;
    margin: 0 0 15px;
    padding: 9px 11px;
    color: var(--slate-900);
    background: #fff;
    border: 1px solid var(--slate-400);
    border-radius: 7px;
    outline: none;
    font: inherit;
    transition: border-color .15s, box-shadow .15s;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(37,99,235,.13); }
input[readonly] { background: var(--slate-100); color: var(--slate-700); }
.hint { margin: -8px 0 14px; color: var(--slate-600); font-size: 12px; }

/* Bütün butonlar: ince ama belirgin çerçeve */
button, .button-link, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 39px;
    padding: 8px 14px;
    color: #fff;
    background: var(--blue-600);
    border: 1px solid var(--blue-700) !important;
    border-radius: 7px;
    box-shadow: 0 2px 5px rgba(15,23,42,.12);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .12s, background .15s, border-color .15s, box-shadow .15s;
}
button:hover, .button-link:hover, input[type="submit"]:hover { color: #fff; background: var(--blue-700); border-color: #1e40af !important; box-shadow: 0 4px 9px rgba(15,23,42,.16); transform: translateY(-1px); }
button:active, .button-link:active { transform: translateY(0); }
form button[style*="#dc2626"], button[style*="background:#dc2626"], button[style*="background: #dc2626"] { background: var(--red-600) !important; border-color: var(--red-700) !important; }
form button[style*="#dc2626"]:hover { background: var(--red-700) !important; }
.button-link[style*="#64748b"], .button-link[style*="background:#64748b"] { background: var(--slate-600) !important; border-color: var(--slate-700) !important; }

/* Tablolar */
.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 760px; }
th, td { padding: 12px 13px; border-bottom: 1px solid var(--slate-200); text-align: left; vertical-align: middle; }
th { color: #fff; background: var(--navy-800); border-bottom-color: #31415f; font-size: 11px; font-weight: 800; letter-spacing: .35px; text-transform: uppercase; }
th:first-child { border-top-left-radius: 9px; }
th:last-child { border-top-right-radius: 9px; }
tbody tr:nth-child(even) { background: #f8fafc; }
tbody tr:hover { background: #eef5ff; }
tbody tr:last-child td { border-bottom: 0; }
td { color: var(--slate-700); font-size: 13px; }
td a { display: inline-flex; margin: 2px 3px 2px 0; padding: 5px 8px; color: var(--blue-700); border: 1px solid #93c5fd; border-radius: 6px; background: #eff6ff; font-size: 12px; font-weight: 700; }
td a:hover { color: #fff; background: var(--blue-600); border-color: var(--blue-700); }
td input { min-width: 105px; margin: 0; }
td form { display: inline-block !important; }

/* Bildirimler */
.alert { margin: 0 0 18px; padding: 13px 15px; border: 1px solid var(--slate-300); border-radius: 8px; background: #fff; font-weight: 650; }
.alert.success { color: #166534; background: #f0fdf4; border-color: #86efac; }
.alert.danger, .alert.error { color: #991b1b; background: #fef2f2; border-color: #fca5a5; }
.alert.warning { color: #92400e; background: #fffbeb; border-color: #fcd34d; }

@media (max-width: 1050px) {
    .cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .container { padding: 25px 24px 45px; }
}
@media (max-width: 760px) {
    .mobile-menu-button {
        display: grid;
        place-items: center;
        position: fixed;
        top: 12px;
        left: 12px;
        z-index: 1200;
        width: 42px;
        height: 42px;
        padding: 0;
        font-size: 21px;
    }
    .sidebar { transform: translateX(-102%); transition: transform .2s ease; }
    .menu-open .sidebar { transform: translateX(0); }
    .mobile-overlay { position: fixed; inset: 0; z-index: 900; background: rgba(2,6,23,.58); }
    .menu-open .mobile-overlay { display: block; }
    .container { margin-left: 0; padding: 72px 15px 36px; }
    .page-head { align-items: flex-start; flex-direction: column; }
    .grid, .cards { grid-template-columns: 1fr; }
    .form-card { padding: 16px; }
    h1 { font-size: 25px; }
}


/* Personel durumu ve performans grafikleri */
.page-actions,
.table-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.table-actions form {
    margin: 0;
}

.small-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 6px 11px;
    border: 1px solid #2563eb;
    border-radius: 7px;
    background: #eff6ff;
    color: #1d4ed8;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.danger-button {
    border-color: #dc2626 !important;
    background: #fef2f2 !important;
    color: #b91c1c !important;
}

.success-button {
    border-color: #16a34a !important;
    background: #f0fdf4 !important;
    color: #15803d !important;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 9px;
    border: 1px solid;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.status-success {
    border-color: #16a34a;
    background: #f0fdf4;
    color: #15803d;
}

.status-muted {
    border-color: #64748b;
    background: #f1f5f9;
    color: #475569;
}

.inactive-row {
    background: #f8fafc;
    color: #64748b;
}

.chart-card {
    margin-top: 22px;
    padding: 22px;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.05);
}

.chart-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.chart-heading h2 {
    margin: 0 0 4px;
}

.chart-heading p {
    margin: 0;
    color: #64748b;
}

.person-chart-block {
    padding: 18px 0;
    border-top: 1px solid #e2e8f0;
}

.person-chart-block:first-of-type {
    border-top: 0;
}

.person-chart-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.person-chart-title > span:last-child {
    margin-left: auto;
    color: #475569;
    font-weight: 700;
}

.bar-chart {
    display: grid;
    grid-template-columns: repeat(7, minmax(56px, 1fr));
    gap: 10px;
    min-height: 220px;
    align-items: end;
}

.monthly-chart {
    grid-template-columns: repeat(12, minmax(46px, 1fr));
    overflow-x: auto;
    padding-bottom: 5px;
}

.bar-column {
    display: grid;
    grid-template-rows: 24px 150px auto;
    gap: 5px;
    min-width: 46px;
    text-align: center;
}

.bar-value {
    font-size: 12px;
    font-weight: 800;
    color: #334155;
}

.bar-track {
    position: relative;
    display: flex;
    align-items: flex-end;
    height: 150px;
    overflow: hidden;
    border: 1px solid #cbd5e1;
    border-radius: 7px 7px 3px 3px;
    background:
        linear-gradient(to top, transparent 24%, #e2e8f0 25%, transparent 26%),
        linear-gradient(to top, transparent 49%, #e2e8f0 50%, transparent 51%),
        linear-gradient(to top, transparent 74%, #e2e8f0 75%, transparent 76%),
        #f8fafc;
}

.bar-fill {
    width: 100%;
    min-height: 2px;
    border-top: 1px solid #1d4ed8;
    background: linear-gradient(180deg, #3b82f6, #2563eb);
    transition: height .2s ease;
}

.bar-label {
    min-height: 32px;
    font-size: 11px;
    color: #64748b;
    white-space: nowrap;
}

.performance-summary .card small {
    display: block;
    margin-top: 6px;
    color: #64748b;
}

.empty-state {
    padding: 28px;
    border: 1px dashed #94a3b8;
    border-radius: 8px;
    text-align: center;
    color: #64748b;
}

@media (max-width: 900px) {
    .bar-chart {
        overflow-x: auto;
        grid-template-columns: repeat(7, minmax(70px, 1fr));
    }

    .monthly-chart {
        grid-template-columns: repeat(12, 60px);
    }
}


/* Çoklu abonelik ve PPPoE alanları */
.subscription-section { margin: 22px 0; }
.section-heading { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:12px; }
.section-heading h2 { margin:0 0 4px; }
.section-heading p { margin:0; color:#64748b; }
.subscription-grid { display:grid; gap:12px; }
.subscription-card { border:1px solid #94a3b8; border-radius:10px; background:#fff; overflow:hidden; }
.subscription-card > summary { display:flex; justify-content:space-between; align-items:center; gap:12px; padding:14px 16px; background:#f8fafc; cursor:pointer; border-bottom:1px solid transparent; }
.subscription-card[open] > summary { border-bottom-color:#cbd5e1; }
.subscription-card form { padding:16px; }
.subscription-card input, .subscription-card select, .subscription-card textarea { width:100%; }
.new-subscription-card { max-width:none !important; margin-top:14px; border-color:#2563eb; }
.new-subscription-card > summary { cursor:pointer; color:#1d4ed8; }
.new-subscription-card form { margin-top:16px; }
.form-actions { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-top:12px; }
.pppoe-password { font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }


/* Depo modülü */
.status-danger { border-color:#dc2626; background:#fef2f2; color:#b91c1c; }
.status-warning { border-color:#d97706; background:#fffbeb; color:#b45309; }
.stock-plus { color:#15803d; font-weight:800; }
.stock-minus { color:#b91c1c; font-weight:800; }
.section-title { margin-top:28px; }
.filter-card { padding:18px; margin-bottom:18px; border:1px solid #cbd5e1; border-radius:12px; background:#fff; }
.filter-grid { display:grid; grid-template-columns:repeat(5,minmax(140px,1fr)); gap:12px; }
@media(max-width:900px){.filter-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.filter-grid{grid-template-columns:1fr;}}