/* ===== Red-Green Admin Theme ===== */
:root {
    --green: #006a4e;
    --green-d: #004d38;
    --green-dd: #00382a;
    --green-l: #e5f2ed;
    --red: #e0243a;
    --red-d: #b3192b;
    --red-l: #fdeaec;
    --amber: #b7791f;
    --amber-l: #fdf3e1;
    --blue: #1f5fa8;
    --blue-l: #e7f0fb;
    --bg: #f3f6f4;
    --card: #ffffff;
    --text: #1b2a24;
    --muted: #64756d;
    --border: #dde6e1;
    --radius: 12px;
    --shadow: 0 1px 2px rgba(0,0,0,.04), 0 4px 14px rgba(0,60,40,.06);
    --sidebar: 250px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
    font-family: "Segoe UI", "Hind Siliguri", "Noto Sans Bengali", system-ui, -apple-system, Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--red); }
.icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ===== Sidebar ===== */
.sidebar {
    position: fixed; inset: 0 auto 0 0; width: var(--sidebar);
    background: linear-gradient(180deg, var(--green-d), var(--green-dd));
    color: #fff; display: flex; flex-direction: column; z-index: 50;
    transition: transform .25s ease;
    border-right: 4px solid var(--red);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.12); }
.brand-logo { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; background: #fff; flex-shrink: 0; }
.logo-text { display: inline-flex; align-items: center; justify-content: center; background: var(--red); color: #fff; font-weight: 700; font-size: 17px; }
.brand-text { min-width: 0; }
.brand-text strong { display: block; font-size: 15px; line-height: 1.25; overflow-wrap: anywhere; }
.brand-text small { color: rgba(255,255,255,.7); font-size: 12px; }
.nav { padding: 12px 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav a {
    display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 8px;
    color: rgba(255,255,255,.85); font-size: 14.5px;
}
.nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav a.active { background: var(--red); color: #fff; box-shadow: 0 4px 12px rgba(224,36,58,.35); }
.nav-bottom { margin-top: auto; border-top: 1px solid rgba(255,255,255,.12); }
.overlay { display: none; }

/* ===== Main ===== */
.main { margin-left: var(--sidebar); min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
    position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px;
    background: #fff; padding: 12px 24px; border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 19px; margin: 0; flex: 1; color: var(--green-d); }
.menu-btn { display: none; background: var(--green); color: #fff; border: 0; border-radius: 8px; padding: 8px; cursor: pointer; }
.menu-btn .icon { width: 22px; height: 22px; }
.user-chip { display: flex; align-items: center; gap: 10px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--green); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; border: 2px solid var(--red); }
.user-meta { display: flex; flex-direction: column; line-height: 1.2; }
.user-meta small { color: var(--muted); font-size: 12px; }
.content { padding: 24px; flex: 1; width: 100%; max-width: 1400px; }
.footer { padding: 14px 24px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--border); background: #fff; }

/* ===== Cards ===== */
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 20px; border: 1px solid var(--border); }
.card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.card-head h2, .card h2 { font-size: 17px; margin: 0; color: var(--green-d); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat {
    background: #fff; border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
    border: 1px solid var(--border); border-left: 5px solid var(--green);
}
.stat.red { border-left-color: var(--red); }
.stat.amber { border-left-color: var(--amber); }
.stat .label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .03em; }
.stat .value { font-size: 23px; font-weight: 700; margin-top: 4px; color: var(--green-d); overflow-wrap: anywhere; }
.stat.red .value { color: var(--red-d); }
.stat.amber .value { color: var(--amber); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-2 > .card { margin-bottom: 0; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; gap: 6px; border: 1px solid transparent; border-radius: 8px;
    padding: 9px 16px; font-size: 14px; font-weight: 600; cursor: pointer; background: var(--green); color: #fff;
    font-family: inherit; line-height: 1.2; white-space: nowrap;
}
.btn:hover { background: var(--green-d); color: #fff; }
.btn-red { background: var(--red); }
.btn-red:hover { background: var(--red-d); }
.btn-light { background: #fff; color: var(--green-d); border-color: var(--border); }
.btn-light:hover { background: var(--green-l); color: var(--green-d); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-group { display: flex; flex-wrap: wrap; gap: 6px; }
.btn .icon { width: 16px; height: 16px; }
form.inline { display: inline; margin: 0; }

/* ===== Forms ===== */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
@media (min-width: 900px) { .form-grid .span-2 { grid-column: span 2; } }
.field label { display: block; font-weight: 600; font-size: 13.5px; margin-bottom: 5px; color: #2f4a3f; }
.field .req { color: var(--red); }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=date], input[type=month],
input[type=tel], input[type=search], input[type=file], select, textarea {
    width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font: inherit;
    background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,106,78,.15); }
textarea { min-height: 80px; resize: vertical; }
.hint { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.filters .field { min-width: 150px; flex: 1; }
.filters .field.grow { flex: 2; }

/* ===== Tables ===== */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 8px; }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { background: var(--green); color: #fff; font-size: 13px; font-weight: 600; white-space: nowrap; }
th:first-child { border-top-left-radius: 8px; }
th:last-child { border-top-right-radius: 8px; }
tbody tr:nth-child(even) { background: #f8fbf9; }
tbody tr:hover { background: var(--green-l); }
.num, td.num, th.num { text-align: right; white-space: nowrap; }
tfoot td { font-weight: 700; background: var(--green-l); }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.text-red { color: var(--red-d); }
.text-green { color: var(--green); }
.muted { color: var(--muted); }

/* ===== Badges & Alerts ===== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: 12px; font-weight: 600; }
.badge-green { background: var(--green-l); color: var(--green-d); }
.badge-red { background: var(--red-l); color: var(--red-d); }
.badge-amber { background: var(--amber-l); color: var(--amber); }
.badge-blue { background: var(--blue-l); color: var(--blue); }
.badge-gray { background: #eee; color: #555; }
.code { font-family: Consolas, monospace; font-weight: 700; color: var(--red-d); white-space: nowrap; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; border-left: 5px solid; }
.alert-success { background: var(--green-l); border-color: var(--green); color: var(--green-dd); }
.alert-error { background: var(--red-l); border-color: var(--red); color: var(--red-d); }
.alert-info { background: var(--blue-l); border-color: var(--blue); color: var(--blue); }

/* ===== Tabs (statement) ===== */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tabs a { padding: 8px 16px; border-radius: 99px; background: #fff; border: 1px solid var(--border); color: var(--green-d); font-weight: 600; font-size: 14px; }
.tabs a.active { background: var(--red); border-color: var(--red); color: #fff; }

/* ===== Dashboard chart ===== */
.chart { display: flex; align-items: flex-end; gap: 14px; height: 220px; padding: 10px 4px 0; border-bottom: 2px solid var(--border); }
.chart-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; min-width: 0; }
.bars { display: flex; align-items: flex-end; gap: 4px; height: 100%; width: 100%; justify-content: center; }
.bar { width: 40%; max-width: 26px; border-radius: 5px 5px 0 0; min-height: 2px; }
.bar.in { background: var(--green); }
.bar.out { background: var(--red); }
.chart-labels { display: flex; gap: 14px; padding: 6px 4px 0; }
.chart-labels span { flex: 1; text-align: center; font-size: 12px; color: var(--muted); min-width: 0; }
.legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ===== Detail list ===== */
.details { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.details div small { display: block; color: var(--muted); font-size: 12.5px; }
.details div b { font-size: 15px; overflow-wrap: anywhere; }

/* ===== Invoice document ===== */
.invoice { max-width: 900px; margin: 0 auto 20px; }
.inv-top { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-bottom: 4px solid var(--green); padding-bottom: 16px; margin-bottom: 16px; position: relative; }
.inv-top::after { content: ""; position: absolute; left: 0; bottom: -4px; width: 30%; height: 4px; background: var(--red); }
.inv-company { display: flex; gap: 14px; align-items: center; }
.inv-logo { width: 70px; height: 70px; border-radius: 50%; object-fit: cover; }
.inv-logo.logo-text { font-size: 24px; }
.inv-company h2 { margin: 0; color: var(--green-d); font-size: 21px; }
.inv-company p { margin: 2px 0; font-size: 13.5px; color: var(--muted); }
.inv-title { text-align: right; }
.inv-title h1 { margin: 0; color: var(--red); letter-spacing: .1em; font-size: 28px; }
.inv-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 16px; }
.inv-meta h4 { margin: 0 0 4px; color: var(--green); font-size: 13px; text-transform: uppercase; }
.inv-meta p { margin: 2px 0; }
.totals { margin-left: auto; width: 100%; max-width: 340px; margin-top: 12px; }
.totals div { display: flex; justify-content: space-between; padding: 6px 10px; }
.totals .grand { background: var(--green); color: #fff; border-radius: 6px; font-weight: 700; }
.totals .due { background: var(--red-l); color: var(--red-d); font-weight: 700; border-radius: 6px; }
.sign { display: flex; justify-content: space-between; margin-top: 60px; gap: 20px; }
.sign span { border-top: 1px solid #999; padding-top: 6px; min-width: 160px; text-align: center; font-size: 13px; }
.item-table input { min-width: 80px; }
.item-table td:first-child input { min-width: 200px; }
.pay-box { background: var(--green-l); border-radius: 10px; padding: 14px; margin-top: 14px; }
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; padding: 8px 0; }
.radio-row label { display: flex; gap: 6px; align-items: center; font-weight: 600; cursor: pointer; }

/* ===== Customer photo ===== */
.cust-photo { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; display: inline-flex; flex-shrink: 0; }
.photo-ph { align-items: center; justify-content: center; background: var(--green-l); color: var(--green-d); font-weight: 700; }
.cust-photo-lg { width: 130px; height: 130px; border-radius: 12px; object-fit: cover; display: inline-flex; border: 3px solid var(--green); font-size: 44px; }
.form-section { font-size: 15px; color: var(--red-d); margin: 22px 0 12px; padding-bottom: 6px; border-bottom: 2px solid var(--green-l); }
.form-section:first-of-type { margin-top: 4px; }
.photo-field { display: flex; gap: 14px; align-items: center; }
.photo-field .cust-photo-lg { width: 90px; height: 90px; font-size: 32px; }
input[readonly] { background: var(--green-l); font-weight: 700; color: var(--red-d); font-family: Consolas, monospace; }
.profile-head { display: flex; gap: 20px; align-items: flex-start; flex-wrap: wrap; }
.profile-head .details { flex: 1; min-width: 240px; }

/* ===== Users & Access ===== */
.perm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.perm-group { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; }
.perm-head { display: flex; gap: 8px; align-items: center; background: var(--green); color: #fff; padding: 9px 12px; font-weight: 700; cursor: pointer; }
.perm-item { display: flex; gap: 8px; align-items: flex-start; padding: 8px 12px; border-top: 1px solid var(--border); cursor: pointer; font-size: 14px; }
.perm-item:hover { background: var(--green-l); }
.perm-item input, .perm-head input { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--red); flex-shrink: 0; }

/* ===== VAT ===== */
.vat-row { align-items: center; }
.pct-input { width: 80px !important; padding: 6px 8px !important; text-align: right; display: inline-block; margin: 0 4px; }
.vat-edit { display: flex; gap: 8px; align-items: center; justify-content: flex-end; flex-wrap: wrap; margin-top: 8px; font-size: 13px; }

/* ===== Installments ===== */
.scroll-box { max-height: 420px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; }
.scroll-box th { position: sticky; top: 0; z-index: 1; }
.inst-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 6px 0 14px; }
.inst-summary div { background: var(--green-l); border-radius: 8px; padding: 10px 12px; }
.inst-summary div.red { background: var(--red-l); }
.inst-summary small { display: block; color: var(--muted); font-size: 12px; }
.inst-summary b { font-size: 15px; }
.progress { height: 10px; background: var(--red-l); border-radius: 99px; overflow: hidden; margin: 4px 0 14px; }
.progress span { display: block; height: 100%; background: var(--green); }
tr.row-overdue td { background: var(--red-l) !important; }
tr.row-paid td { color: var(--muted); }
.section-title { color: var(--green-d); font-size: 16px; margin: 24px 0 8px; display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ===== Company preview ===== */
.logo-preview { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; border: 3px solid var(--green); }
.logo-preview.logo-text { font-size: 34px; }

/* ===== Login ===== */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
    background: linear-gradient(135deg, var(--green-d) 0%, var(--green) 55%, var(--red) 55.2%, var(--red-d) 100%); }
.login-box { background: #fff; width: 100%; max-width: 400px; border-radius: 16px; padding: 32px 28px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.login-box .head { text-align: center; margin-bottom: 22px; }
.login-box .head .login-logo { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; margin: 0 auto 10px; border: 3px solid var(--red); display: flex; }
.login-box .head .login-logo.logo-text { font-size: 28px; }
.login-box h1 { font-size: 21px; margin: 0; color: var(--green-d); }
.login-box p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.login-box .field { margin-bottom: 14px; }
.app-tag { display: inline-block; margin-top: 10px; padding: 4px 12px; border-radius: 99px; background: var(--green-l); color: var(--green-d); font-size: 12.5px; font-weight: 700; letter-spacing: .02em; border: 1px solid var(--green); }
.login-box .btn { width: 100%; justify-content: center; padding: 12px; font-size: 15px; }

.print-only { display: none; }

/* ===== Responsive: Laptop/Tab ===== */
@media (max-width: 1100px) {
    .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 991px) {
    .sidebar { transform: translateX(-100%); }
    body.nav-open .sidebar { transform: translateX(0); }
    body.nav-open .overlay { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 40; }
    .main { margin-left: 0; }
    .menu-btn { display: inline-flex; }
}
/* ===== Mobile ===== */
@media (max-width: 600px) {
    body { font-size: 14px; }
    .content { padding: 14px; }
    .topbar { padding: 10px 14px; }
    .topbar h1 { font-size: 16px; }
    .user-meta { display: none; }
    .card { padding: 14px; }
    .stats { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat { padding: 12px; }
    .stat .value { font-size: 17px; }
    .inv-meta { grid-template-columns: 1fr; }
    .inv-title { text-align: left; }
    .filters .field { min-width: 100%; }
    .chart, .chart-labels { gap: 6px; }
}
@media (max-width: 380px) {
    .stats { grid-template-columns: 1fr; }
}

/* ===== Print ===== */
@media print {
    @page { size: A4; margin: 12mm; }
    body { background: #fff; font-size: 12.5px; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    .sidebar, .topbar, .overlay, .footer, .no-print, .btn, .filters, .tabs { display: none !important; }
    .main { margin: 0; }
    .content { padding: 0; max-width: none; }
    .card { box-shadow: none; border: 0; padding: 0; margin-bottom: 14px; }
    .print-only { display: block; }
    .print-head { display: flex !important; align-items: center; gap: 14px; border-bottom: 3px solid var(--green); padding-bottom: 10px; margin-bottom: 14px; flex-wrap: wrap; }
    .print-head h2 { margin: 0; color: var(--green-d); }
    .print-head p { margin: 1px 0; }
    .print-title { width: 100%; margin: 6px 0 0; color: var(--red); }
    .print-logo { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; }
    .table-wrap { overflow: visible; }
    .scroll-box { max-height: none; overflow: visible; border: 0; }
    .inst-summary div { padding: 6px 8px; }
    table { min-width: 0; }
    th, td { padding: 6px 8px; }
    tr { page-break-inside: avoid; }
    .stats { grid-template-columns: repeat(4, 1fr); }
    .stat { box-shadow: none; padding: 8px; }
    .stat .value { font-size: 15px; }
    .grid-2 { grid-template-columns: 1fr 1fr; }
}