/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:       #1a1a1a;
    --sidebar:  #111111;
    --panel:    #242424;
    --panel2:   #2e2e2e;
    --accent:   #E8A020;
    --accent2:  #2a9fd6;
    --text:     #e0e0e0;
    --text-dim: #888888;
    --success:  #4caf50;
    --danger:   #f44336;
    --border:   #333333;
    --radius:   8px;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }

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

/* ── Sidebar ── */
.sidebar {
    width: 200px;
    min-width: 200px;
    background: var(--sidebar);
    display: flex;
    flex-direction: column;
    padding: 0;
    border-right: 1px solid var(--border);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 20px 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}
.logo-ias {
    display: block;
    font-size: 28px;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: 2px;
}
.logo-erp {
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 4px;
    text-transform: uppercase;
}

.nav-links {
    list-style: none;
    padding: 12px 8px;
    flex: 1;
}
.nav-links li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--text-dim);
    font-size: 13px;
    transition: all 0.15s;
}
.nav-links li a:hover { background: var(--panel); color: var(--text); }
.nav-links li a.active { background: var(--panel); color: var(--accent); font-weight: 600; }
.nav-links .icon { font-size: 15px; }

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-dim);
}
.logout-btn { color: var(--text-dim); font-size: 11px; }
.logout-btn:hover { color: var(--danger); }

/* ── Content ── */
.content {
    margin-left: 200px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Page Header ── */
.page-header {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.page-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
    margin-right: auto;
}
.page-body { padding: 24px; flex: 1; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: opacity 0.15s, background 0.15s;
    white-space: nowrap;
}
.btn:hover { opacity: 0.88; }
.btn-primary   { background: var(--accent);  color: #000; }
.btn-secondary { background: var(--panel2);  color: var(--text); }
.btn-blue      { background: var(--accent2); color: #fff; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-sm        { padding: 4px 10px; font-size: 12px; }
.btn-full      { width: 100%; justify-content: center; padding: 10px; }

/* ── Cards / Panels ── */
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}
.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

/* ── Summary Bar ── */
.summary-bar {
    display: flex;
    background: #161616;
    border-top: 1px solid var(--border);
    padding: 10px 24px;
}
.summary-item {
    flex: 1;
    text-align: center;
}
.summary-item .label {
    font-size: 10px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.summary-item .value {
    font-size: 16px;
    font-weight: 700;
    margin-top: 2px;
}
.value-success { color: var(--success); }
.value-danger  { color: var(--danger);  }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    white-space: nowrap;
}
thead th {
    background: var(--sidebar);
    color: var(--text-dim);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 8px 10px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
}
thead th.left { text-align: left; }
tbody tr { border-bottom: 1px solid #2a2a2a; }
tbody tr:hover { background: #2a2a2a; }
tbody td {
    padding: 6px 10px;
    text-align: center;
    color: var(--text);
}
tbody td.left { text-align: left; }
tbody td.actions { white-space: nowrap; }
tr.invoice-row td { color: var(--accent2); }
tr.invoice-row:hover { background: #1e2e38; }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }
.form-group label {
    display: block;
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    padding: 8px 10px;
    font-size: 13px;
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-row {
    display: grid;
    gap: 12px;
    margin-bottom: 14px;
}
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row.cols-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }

/* ── Modal ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 500;
    align-items: center;
    justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 640px;
    max-width: 95vw;
    max-height: 90vh;
    overflow-y: auto;
    padding: 24px;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.modal-title { font-size: 16px; font-weight: 700; color: var(--accent); }
.modal-close {
    background: none; border: none; color: var(--text-dim);
    font-size: 20px; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ── Alerts ── */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}
.alert-error   { background: #3a1010; border: 1px solid var(--danger);  color: #ff8080; }
.alert-success { background: #0e2e14; border: 1px solid var(--success); color: #80e080; }

/* ── Client selector ── */
.client-select-wrap { display: flex; align-items: center; gap: 10px; }
.client-select-wrap select { min-width: 220px; }

/* ── Login ── */
.login-page { display: flex; align-items: center; justify-content: center; }
.login-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 40px;
    width: 360px;
}
.login-logo { text-align: center; margin-bottom: 4px; }
.login-sub  { text-align: center; color: var(--text-dim); font-size: 12px; margin-bottom: 24px; }

/* ── Settings lists ── */
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.list-items { list-style: none; margin: 12px 0; max-height: 320px; overflow-y: auto; }
.list-items li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 10px;
    border-radius: 6px;
}
.list-items li:hover { background: var(--panel2); }
.add-item-row { display: flex; gap: 8px; margin-top: 10px; }
.add-item-row input { flex: 1; }

/* ── Misc ── */
.text-dim    { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.text-right  { text-align: right; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }