/* OrgHub Billing — Frontend CSS */
:root {
    --c-primary: #0f4c3a;
    --c-primary-light: #1a6b53;
    --c-primary-soft: #e8f3ee;
    --c-accent: #2563eb;
    --c-success: #15803d;
    --c-success-soft: #dcfce7;
    --c-danger: #b91c1c;
    --c-danger-soft: #fee2e2;
    --c-warning: #b45309;
    --c-warning-soft: #fef3c7;
    --c-info: #1e40af;
    --c-info-soft: #dbeafe;
    --c-text: #111827;
    --c-text-soft: #4b5563;
    --c-text-muted: #9ca3af;
    --c-bg: #f3f4f6;
    --c-bg-card: #ffffff;
    --c-border: #e5e7eb;
    --c-border-strong: #d1d5db;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow: 0 2px 8px rgba(0,0,0,.06);
    --shadow-lg: 0 8px 24px rgba(0,0,0,.08);
    --radius: 14px;
    --radius-sm: 8px;
    --topbar-h: 60px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font);
    color: var(--c-text);
    background: var(--c-bg);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}
a { color: var(--c-primary); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img, svg { max-width: 100%; }

/* HOME */
.obb-home {
    background: linear-gradient(180deg, var(--c-primary) 0%, var(--c-primary) 240px, var(--c-bg) 240px);
    min-height: 100vh;
    padding-bottom: 32px;
}
.obb-home-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 24px 20px 20px;
    color: #fff;
}
.obb-home-greeting { flex: 1; }
.obb-home-hi {
    display: block;
    font-size: 13px;
    opacity: .8;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.obb-home-greeting h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -.3px;
}

.obb-icon-btn {
    background: rgba(255,255,255,.18);
    border: none;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.obb-icon-btn svg { width: 20px; height: 20px; }

/* Big balance cards on dashboard */
.obb-balance-cards {
    padding: 0 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}
.obb-balance-card {
    background: #fff;
    border-radius: 14px;
    padding: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--c-border);
}
.obb-balance-label {
    font-size: 12px;
    color: var(--c-text-muted);
    text-transform: uppercase;
    letter-spacing: .8px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}
.obb-balance-arrow {
    width: 18px; height: 18px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}
.obb-balance-arrow svg { width: 12px; height: 12px; }
.obb-arrow-get { background: var(--c-success); }
.obb-arrow-give { background: var(--c-danger); }
.obb-balance-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--c-text);
}
.obb-balance--green .obb-balance-value { color: var(--c-success); }
.obb-balance--red .obb-balance-value { color: var(--c-danger); }

/* Tile grid */
.obb-tiles {
    padding: 8px 12px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.obb-tile {
    background: #fff;
    border-radius: 18px;
    padding: 18px 8px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--c-text);
    box-shadow: var(--shadow);
    aspect-ratio: 1 / 1;
    transition: transform .15s, box-shadow .15s;
}
.obb-tile:active { transform: scale(.95); }
.obb-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); text-decoration: none; }
.obb-tile-icon {
    width: 56px; height: 56px;
    background: var(--tile-color, var(--c-primary));
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,.12);
}
.obb-tile-icon svg { width: 28px; height: 28px; }
.obb-tile-label { font-size: 12px; font-weight: 600; }

/* Inner pages */
.obb-page { background: var(--c-bg); min-height: 100vh; }
.obb-topbar {
    height: var(--topbar-h);
    background: var(--c-primary);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 8px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 8px rgba(0,0,0,.1);
}
.obb-back-btn {
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: rgba(255,255,255,.12);
}
.obb-back-btn svg { width: 20px; height: 20px; }
.obb-page-title {
    flex: 1;
    margin: 0;
    font-size: 17px;
    font-weight: 600;
    color: #fff;
    padding-left: 4px;
}
.obb-content { padding: 16px; max-width: 800px; margin: 0 auto; }

/* Flashes */
.obb-flashes { padding: 12px 16px 0; max-width: 800px; margin: 0 auto; }
.obb-flash {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}
.obb-flash-success { background: var(--c-success-soft); color: var(--c-success); border-left: 3px solid var(--c-success); }
.obb-flash-error   { background: var(--c-danger-soft);  color: var(--c-danger);  border-left: 3px solid var(--c-danger); }
.obb-flash-info    { background: var(--c-info-soft);    color: var(--c-info);    border-left: 3px solid var(--c-info); }
.obb-flash-warning { background: var(--c-warning-soft); color: var(--c-warning); border-left: 3px solid var(--c-warning); }

/* Cards */
.obb-card {
    background: var(--c-bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--c-border);
    margin-bottom: 16px;
    overflow: hidden;
}
.obb-card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    background: #fafafa;
}
.obb-card-title { margin: 0; font-size: 15px; font-weight: 700; }
.obb-card-body { padding: 16px 18px; }

/* Forms */
.obb-form-grid { display: grid; grid-template-columns: 1fr; gap: 12px 14px; }
@media (min-width: 600px) {
    .obb-form-grid { grid-template-columns: repeat(2, 1fr); }
    .obb-form-grid .full { grid-column: 1 / -1; }
}
.obb-field { display: flex; flex-direction: column; gap: 5px; }
.obb-field label { font-size: 13px; font-weight: 600; color: var(--c-text-soft); }
.obb-field input, .obb-field select, .obb-field textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid var(--c-border-strong);
    border-radius: 10px;
    background: #fff;
    font-size: 16px;
    font-family: inherit;
    color: var(--c-text);
}
.obb-field input:focus, .obb-field select:focus, .obb-field textarea:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(15, 76, 58, .15);
}
.obb-field textarea { resize: vertical; min-height: 70px; }
.obb-field-hint { font-size: 12px; color: var(--c-text-muted); }
.obb-form-actions { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }

/* Buttons */
.obb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    border: 1px solid var(--c-border-strong);
    background: #fff;
    color: var(--c-text);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
}
.obb-btn-primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.obb-btn-primary:hover { background: var(--c-primary-light); color: #fff; }
.obb-btn-success { background: var(--c-success); color: #fff; border-color: var(--c-success); }
.obb-btn-danger { background: #fff; color: var(--c-danger); border-color: var(--c-danger-soft); }
.obb-btn-sm { padding: 7px 12px; font-size: 13px; }
.obb-btn svg { width: 16px; height: 16px; }
.obb-link { background: transparent; border: none; color: var(--c-primary); cursor: pointer; padding: 4px 6px; font-size: 13px; font-weight: 600; }
.obb-link-danger { color: var(--c-danger); }
.obb-inline-form { display: inline; }

/* Tables */
.obb-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.obb-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.obb-table th {
    text-align: left;
    padding: 10px 14px;
    background: #fafafa;
    color: var(--c-text-soft);
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 1px solid var(--c-border);
    white-space: nowrap;
}
.obb-table td { padding: 12px 14px; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
.obb-empty { padding: 32px 16px; text-align: center; color: var(--c-text-muted); font-style: italic; }

/* Pills */
.obb-pill {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    background: var(--c-bg);
    color: var(--c-text-soft);
}
.obb-pill--green { background: var(--c-success-soft); color: var(--c-success); }
.obb-pill--red   { background: var(--c-danger-soft);  color: var(--c-danger); }
.obb-pill--orange { background: var(--c-warning-soft); color: var(--c-warning); }
.obb-pill--blue  { background: var(--c-info-soft);    color: var(--c-info); }

.obb-text-green { color: var(--c-success); font-weight: 700; }
.obb-text-red   { color: var(--c-danger); font-weight: 700; }
.obb-text-orange { color: var(--c-warning); font-weight: 700; }
.obb-text-muted { color: var(--c-text-muted); }

/* Login */
.obb-blank {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.obb-login-card {
    background: #fff;
    border-radius: 16px;
    padding: 36px 28px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
.obb-login-brand { text-align: center; margin-bottom: 22px; }
.obb-login-logo {
    width: 60px; height: 60px;
    margin: 0 auto 14px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
}
.obb-login-card h1 { margin: 0 0 4px; font-size: 22px; font-weight: 700; text-align: center; }
.obb-login-subtitle { text-align: center; color: var(--c-text-muted); font-size: 13px; margin-bottom: 22px; }
.obb-login-card .obb-btn-primary { width: 100%; padding: 13px; font-size: 15px; }
.obb-login-error {
    background: var(--c-danger-soft);
    color: var(--c-danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
}
.obb-checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--c-text-soft); margin-top: 14px; }
.obb-checkbox-row input { width: auto; margin: 0; }

/* Sale invoice line items table (input grid) */
.obb-line-items {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    overflow: hidden;
    margin-bottom: 12px;
}
.obb-line-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 32px;
    gap: 6px;
    padding: 8px 10px;
    border-bottom: 1px solid var(--c-border);
    align-items: center;
}
.obb-line-row:last-child { border-bottom: none; }
.obb-line-row input, .obb-line-row select {
    padding: 8px 10px;
    border: 1px solid var(--c-border);
    border-radius: 6px;
    background: #fff;
    font-size: 14px;
    width: 100%;
}
.obb-line-head {
    background: #fafafa;
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--c-text-soft);
    padding: 10px;
}
.obb-line-head > div { padding: 4px; }
.obb-line-remove {
    background: var(--c-danger-soft);
    color: var(--c-danger);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 18px;
    line-height: 1;
}
.obb-line-add-btn {
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border: 1px dashed var(--c-primary);
    padding: 10px;
    border-radius: 8px;
    width: 100%;
    margin-bottom: 12px;
    font-weight: 600;
}
.obb-totals-box {
    background: #fafafa;
    border-radius: var(--radius);
    padding: 14px;
    margin-bottom: 12px;
}
.obb-total-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
}
.obb-total-row.total {
    font-size: 18px;
    font-weight: 700;
    border-top: 2px solid var(--c-border);
    margin-top: 6px;
    padding-top: 10px;
}

/* Party row */
.obb-party-row {
    background: #fff;
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: var(--c-text);
}
.obb-party-row:hover { box-shadow: var(--shadow); transform: translateY(-1px); text-decoration: none; }
.obb-party-name { font-weight: 700; font-size: 15px; }
.obb-party-meta { font-size: 12px; color: var(--c-text-muted); margin-top: 2px; }
.obb-party-balance { text-align: right; }
.obb-party-balance strong { font-size: 16px; display: block; }
.obb-party-balance small { font-size: 11px; color: var(--c-text-muted); }

/* WhatsApp button */
.obb-btn-whatsapp { background: #25D366; color: #fff; border-color: #25D366; }
.obb-btn-whatsapp svg { fill: #fff; }

/* Print styles - 3" thermal + A4 */
@media print {
    body { background: #fff; }
    .obb-topbar, .obb-back-btn, .obb-icon-btn, .obb-form-actions, .obb-no-print { display: none !important; }
    .obb-content { padding: 0; max-width: none; }
    .obb-card { box-shadow: none; border: none; }
    .obb-print-only { display: block !important; }
}
.obb-print-only { display: none; }

/* Thermal 3-inch print */
@media print and (max-width: 80mm) {
    body { font-size: 10pt; }
    .obb-content { width: 72mm; }
    .obb-print-thermal { display: block; }
    .obb-print-a4 { display: none; }
}