/* Qina Billing - Design System (PayPal Minimalist)
   Chunk 9: CSS variables, components, responsive grid, typography
   WCAG 2.1 AA compliant */

:root {
    --qina-bg: #f5f7fa;
    --qina-card: #ffffff;
    --qina-primary: #0070ba;
    --qina-primary-hover: #005a9e;
    --qina-primary-light: #e5f0fa;
    --qina-text: #1a1a1a;
    --qina-text-secondary: #5f6b7a;
    --qina-border: #e1e4e8;
    --qina-radius: 8px;
    --qina-radius-sm: 4px;
    --qina-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --qina-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --qina-shadow-hover: 0 4px 12px rgba(0,0,0,0.1);
    --qina-danger: #d32f2f;
    --qina-success: #2e7d32;
    --qina-warning: #f57c00;
    --qina-info: #0288d1;
    /* Safe area insets for notched/home-indicator devices */
    --sa-top: env(safe-area-inset-top, 0px);
    --sa-right: env(safe-area-inset-right, 0px);
    --sa-bottom: env(safe-area-inset-bottom, 0px);
    --sa-left: env(safe-area-inset-left, 0px);
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--qina-font);
    background: var(--qina-bg);
    color: var(--qina-text);
    line-height: 1.6;
    min-height: 100vh;
    padding-top: var(--sa-top);
    padding-right: var(--sa-right);
    padding-bottom: var(--sa-bottom);
    padding-left: var(--sa-left);
}

a { color: var(--qina-primary); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--qina-primary-hover); }

img { max-width: 100%; height: auto; }

/* Typography */
h1 { font-size: clamp(1.35rem, 4.5vw, 1.75rem); font-weight: 600; margin-bottom: 0.25rem; }
h2 { font-size: clamp(1.15rem, 3.5vw, 1.35rem); font-weight: 600; margin-bottom: 0.75rem; }
h3 { font-size: clamp(1rem, 2.5vw, 1.1rem); font-weight: 600; margin-bottom: 0.5rem; }
h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
p { margin-bottom: 0.5rem; color: var(--qina-text-secondary); }

/* Cards */
.card {
    background: var(--qina-card);
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    padding: clamp(1rem, 3vw, 1.5rem);
    margin-bottom: 1.25rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Navigation */
.navbar {
    background: var(--qina-card);
    border-bottom: 1px solid var(--qina-border);
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0.8rem clamp(0.75rem, 4vw, 1.5rem);
    gap: clamp(0.5rem, 2vw, 1rem);
}

.nav-left {
    flex-shrink: 0;
}

.nav-brand {
    text-decoration: none !important;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.brand-bold {
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--qina-primary);
    letter-spacing: 1px;
}

.brand-light {
    font-weight: 400;
    font-size: 1.2rem;
    color: var(--qina-text-secondary);
    letter-spacing: 0.5px;
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-links {
    display: flex;
    gap: 0.15rem;
}

.nav-link {
    color: var(--qina-text-secondary) !important;
    font-size: 0.85rem;
    padding: 0.35rem 0.7rem;
    border-radius: var(--qina-radius-sm);
    white-space: nowrap;
    transition: color 150ms ease, background 150ms ease;
    position: relative;
}

.nav-link:hover {
    color: var(--qina-primary) !important;
    background: var(--qina-primary-light);
    text-decoration: none;
}

.nav-link.active {
    color: var(--qina-primary) !important;
    background: var(--qina-primary-light);
    text-decoration: none;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--qina-primary);
    border-radius: 1px;
}

.nav-right {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.3;
}

.nav-user-info .nav-user-name {
    font-size: 0.85rem;
    color: var(--qina-text);
    font-weight: 500;
}

.nav-user-info .nav-user-role {
    font-size: 0.7rem;
    color: var(--qina-text-secondary);
    text-transform: capitalize;
    margin-bottom: 1px;
}

.nav-user-info .badge {
    font-size: 9px;
    padding: 1px 6px;
    text-transform: uppercase;
    border-radius: 8px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--qina-text-secondary);
    white-space: nowrap;
}

.nav-user .badge {
    font-size: 10px;
    padding: 2px 8px;
    text-transform: uppercase;
    border-radius: 10px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

/* Hide nav-user inside collapse on desktop (nav-right is used instead) */
.nav-center .nav-user { display: none; }

/* Nav toggle (hamburger) - hidden on desktop */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
    z-index: 110;
}
.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--qina-text-secondary);
    border-radius: 2px;
    transition: all 0.25s;
}
.nav-toggle.open .nav-toggle-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.nav-toggle.open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}
.nav-toggle.open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Nav collapse - mobile dropdown */
.nav-collapse {
    display: flex;
    flex: 1;
    align-items: center;
    gap: 0.5rem;
}

/* Main content */
.main-content {
    max-width: 1280px;
    margin: clamp(0.75rem, 2.5vw, 1.5rem) auto;
    padding: 0 clamp(0.75rem, 4vw, 1.5rem) clamp(2rem, 5vw, 3rem);
}

/* Fluid wrapper – use on any block needing consistent horizontal padding */
.responsive-wrapper {
    padding: 0 clamp(0.75rem, 4vw, 1.5rem);
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: clamp(1rem, 3vw, 1.5rem);
    border-top: 1px solid var(--qina-border);
    color: var(--qina-text-secondary);
    font-size: 0.8rem;
}
.app-footer p { margin: 0; }

/* View header (title + Import/Export buttons + logo) */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.view-header-left h1 {
    margin: 0;
    font-size: clamp(1.25rem, 4vw, 1.5rem);
}

.view-header-left p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--qina-text-secondary);
}

.view-header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.company-name {
    font-size: 0.875rem;
    color: var(--qina-text-secondary);
    font-weight: 500;
}

.header-logo {
    max-height: 36px;
    border-radius: var(--qina-radius-sm);
}

.company-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.company-info .badge {
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 8px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--qina-radius);
    border: 1px solid var(--qina-border);
    cursor: pointer;
    transition: all 0.15s;
    background: var(--qina-card);
    color: var(--qina-text);
    white-space: nowrap;
    gap: 0.35rem;
    font-family: inherit;
    line-height: 1.4;
}

.btn:hover { box-shadow: var(--qina-shadow-hover); text-decoration: none; }

.btn-primary {
    background: var(--qina-primary);
    color: #fff;
    border-color: var(--qina-primary);
}
.btn-primary:hover { background: var(--qina-primary-hover); border-color: var(--qina-primary-hover); color: #fff; }

.btn-secondary { background: var(--qina-card); color: var(--qina-text); }
.btn-secondary:hover { background: var(--qina-bg); color: var(--qina-text); }
.btn-ghost { background: none; color: var(--qina-text-secondary); border-color: transparent; }
.btn-ghost:hover { background: var(--qina-bg); color: var(--qina-text); border-color: transparent; box-shadow: none; }

.btn-danger { background: var(--qina-danger); color: #fff; border-color: var(--qina-danger); }
.btn-danger:hover { color: #fff; }

.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-block { width: 100%; }

/* 3D Action Button */
.btn-action {
    background: linear-gradient(#1f6fe5, #1558c0);
    color: #fff;
    border: none;
    box-shadow: 0 2px 0 #0f3f8c, 0 4px 10px rgba(31,111,229,0.25);
    border-radius: 6px;
    font-weight: 600;
    transition: all 150ms ease;
}
.btn-action:hover {
    background: linear-gradient(#2a7aef, #1a63d0);
    box-shadow: 0 2px 0 #0f3f8c, 0 6px 16px rgba(31,111,229,0.35);
    color: #fff;
    text-decoration: none;
}
.btn-action:active {
    transform: translateY(1px);
    box-shadow: 0 1px 0 #0f3f8c, 0 2px 6px rgba(31,111,229,0.2);
}

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.35rem; color: var(--qina-text); }
.form-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--qina-border);
    border-radius: var(--qina-radius);
    background: var(--qina-card);
    color: var(--qina-text);
    font-family: inherit;
    transition: border-color 0.15s;
}
.form-input:focus { outline: none; border-color: var(--qina-primary); box-shadow: 0 0 0 3px var(--qina-primary-light); }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f6b7a' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; padding-right: 2rem; }
.form-textarea { min-height: 80px; resize: vertical; }
.form-help { font-size: 0.75rem; color: var(--qina-text-secondary); margin-top: 0.25rem; }
.form-checkbox { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; cursor: pointer; }
.form-checkbox input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.form-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 1rem; }
.form-container { max-width: 800px; margin: 0 auto; }

/* File input (receipt upload, CSV import, logo) */
.form-file {
    padding: 0.5rem 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
}
.form-file::file-selector-button {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--qina-border);
    border-radius: var(--qina-radius-sm);
    background: var(--qina-bg);
    color: var(--qina-text);
    font-size: 0.8rem;
    cursor: pointer;
    margin-right: 0.5rem;
    transition: background 0.15s;
}
.form-file::file-selector-button:hover { background: #e8eaed; }

.search-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.search-bar .form-input { max-width: 320px; }
.search-bar .form-select { max-width: 200px; }

/* Data table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.data-table th {
    text-align: left;
    padding: 0.65rem 0.75rem;
    font-weight: 600;
    color: var(--qina-text-secondary);
    border-bottom: 2px solid var(--qina-border);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.data-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--qina-border);
    vertical-align: middle;
}
.data-table tr:hover { background: #f8f9fb; }
.data-table .empty-cell { text-align: center; padding: 2rem; color: var(--qina-text-secondary); }
.data-table tbody {
    content-visibility: auto;
    contain-intrinsic-size: 200px;
}

.actions-cell { white-space: nowrap; }
.text-center { text-align: center; }
.data-table th.text-center { text-align: center; }
.data-table td.text-center { text-align: center; }
.text-right { text-align: right; }
.data-table th.text-right { text-align: right; }
.text-nowrap { white-space: nowrap; }

/* Scroll wrapper for wide tables on mobile */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Actions Dropdown */
.dropdown { position: relative; display: inline-block; }
.dropdown-toggle { cursor: pointer; user-select: none; }
.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    min-width: 180px;
    z-index: 100;
    padding: 4px 0;
    margin-top: 4px;
}
.dropdown.open .dropdown-menu { display: block; }
.dropdown-item {
    display: block;
    padding: 7px 14px;
    font-size: 0.8rem;
    color: var(--qina-text, #1a1a1a);
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}
.dropdown-item:hover { background: #f0f2f5; text-decoration: none; }
.dropdown-item.danger { color: var(--qina-danger, #dc2626); }
.dropdown-menu a.dropdown-item,
.dropdown-menu a.dropdown-item:link,
.dropdown-menu a.dropdown-item:visited,
.dropdown-menu a.dropdown-item:hover,
.dropdown-menu a.dropdown-item:active,
.dropdown-menu a.dropdown-item:focus {
    color: var(--qina-text, #1a1a1a) !important;
    text-decoration: none !important;
    background: none !important;
}
.dropdown-menu a.dropdown-item:hover { background: #f0f2f5 !important; }
.dropdown-divider { height: 1px; background: var(--qina-border, #e1e4e8); margin: 4px 0; }

/* Pagination */
.pagination {
    display: flex;
    gap: 0.25rem;
    justify-content: center;
    padding: 1rem 0;
}
.page-link {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--qina-border);
    border-radius: var(--qina-radius-sm);
    font-size: 0.875rem;
    color: var(--qina-text);
}
.page-link:hover, .page-link.active {
    background: var(--qina-primary);
    color: #fff;
    border-color: var(--qina-primary);
    text-decoration: none;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 3px;
    text-transform: capitalize;
}
.badge-draft { background: #e1e4e8; color: #444; }
.badge-sent { background: #e3f0fa; color: #005a9e; }
.badge-viewed { background: #e3f0fa; color: #005a9e; }
.badge-accepted { background: #e6f7e6; color: #0d7c0d; }
.badge-converted_to_invoice { background: #e6f7e6; color: #0d7c0d; }
.badge-partial { background: #fff3e0; color: #e65100; }
.badge-paid { background: #e6f7e6; color: #0d7c0d; }
.badge-expired { background: #fbe9e7; color: #bf360c; }
.badge-overdue { background: #fbe9e7; color: #bf360c; }
.badge-cancelled { background: #f5f5f5; color: #666; }
.badge-refunded { background: #f3e5f5; color: #7b1fa2; }
.badge-director { background: #e3f0fa; color: #005a9e; }
.badge-manager { background: #e6f7e6; color: #0d7c0d; }
.badge-officer { background: #f5f5f5; color: #666; }
.badge-recurring { background: #fff3e0; color: #e65100; font-size: 0.7rem; margin-left: 4px; }
.badge-primary { background: #e3f0fa; color: #005a9e; }
.badge-secondary { background: #e1e4e8; color: #444; }
.badge-success { background: #e6f7e6; color: #0d7c0d; }
.badge-danger { background: #fbe9e7; color: #bf360c; }
.badge-warning { background: #fff3e0; color: #e65100; }
.badge-sm { font-size: 0.65rem; padding: 0.1rem 0.35rem; }

/* Stats grid - KPI Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    padding: 0;
    overflow: hidden;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}
.stat-accent {
    height: 4px;
    width: 100%;
}
.stat-card-body {
    padding: 20px 24px 24px;
}
.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    margin-bottom: 12px;
    opacity: 0.75;
}
.stat-icon svg {
    width: 20px;
    height: 20px;
}
.stat-value {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--qina-text);
    line-height: 1.2;
    margin-bottom: 4px;
}
.stat-label {
    font-size: 0.75rem;
    color: var(--qina-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
}

/* Dashboard grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.modal.open { display: flex; }
.modal-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--qina-border);
}
.modal-header h2 { margin: 0; }
.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--qina-text-secondary);
    padding: 0.25rem;
    line-height: 1;
}

/* Toast notifications */
.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--qina-radius);
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 300;
    animation: slideIn 0.3s ease;
    box-shadow: var(--qina-shadow-hover);
}
.toast-success { background: var(--qina-success); color: #fff; }
.toast-error { background: var(--qina-danger); color: #fff; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Auth */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: 2rem 1rem;
}
.auth-card {
    max-width: 400px;
    width: 100%;
    padding: 2rem;
}
.auth-header { text-align: center; margin-bottom: 1.5rem; }
.auth-header h1 { color: var(--qina-primary); font-size: 1.5rem; }
.auth-header p { color: var(--qina-text-secondary); font-size: 0.875rem; }
.auth-links { display: flex; justify-content: space-between; margin-top: 1rem; font-size: 0.85rem; }

/* Setup */
.setup-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: 2rem 1rem;
}
.setup-card { max-width: 540px; width: 100%; padding: 2rem; }
.setup-header { text-align: center; margin-bottom: 1.5rem; }
.setup-steps { display: flex; align-items: center; justify-content: center; gap: 0.75rem; margin-bottom: 1rem; }
.step {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--qina-border);
    color: var(--qina-text-secondary);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.875rem;
}
.step.active { background: var(--qina-primary); color: #fff; }
.step-separator { width: 60px; height: 2px; background: var(--qina-border); }

/* Document view */
.doc-view .doc-content { padding: 2rem; }
.doc-header { display: flex; justify-content: space-between; margin-bottom: 1.5rem; }
.doc-brand { max-width: 50%; }
.doc-logo { max-height: 60px; margin-bottom: 0.75rem; }
.doc-meta { text-align: right; }
.doc-meta h3 { font-size: 1.25rem; color: var(--qina-primary); letter-spacing: 1px; }
.doc-bill-to { margin-bottom: 1.5rem; padding: 1rem; background: var(--qina-bg); border-radius: var(--qina-radius); }
.doc-items { margin-bottom: 1.5rem; table-layout: fixed; }
.doc-items th, .doc-items td { overflow: hidden; text-overflow: ellipsis; }
.doc-items th:nth-child(1), .doc-items td:nth-child(1) { width: 45%; }
.doc-items th:nth-child(2), .doc-items td:nth-child(2) { width: 100px; text-align: right; }
.doc-items th:nth-child(3), .doc-items td:nth-child(3) { width: 130px; text-align: right; }
.doc-items th:nth-child(4), .doc-items td:nth-child(4) { width: 140px; text-align: right; }
.doc-totals { text-align: right; margin-bottom: 1rem; }
.doc-totals .total-row { margin: 0.35rem 0; font-size: 0.95rem; }
.doc-totals .total-final { font-size: 1.25rem; color: var(--qina-primary); border-top: 2px solid var(--qina-primary); padding-top: 0.5rem; }
.doc-totals .total-due { font-size: 1.1rem; color: var(--qina-danger); }
.doc-notes, .doc-terms { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--qina-border); }
.doc-notes p, .doc-terms p { font-size: 0.875rem; }
.doc-banking { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--qina-border); }
.doc-banking h4 { margin-bottom: 0.5rem; color: var(--qina-primary); }
.banking-table { width: auto; }
.banking-table td { padding: 2px 12px 2px 0; font-size: 0.875rem; }

/* Totals box on forms */
.totals-box {
    background: var(--qina-bg);
    border-radius: var(--qina-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}
.totals-box .total-row { display: flex; justify-content: space-between; margin: 0.25rem 0; font-size: 0.9rem; }
.totals-box .total-final { font-weight: 700; font-size: 1.1rem; color: var(--qina-primary); border-top: 2px solid var(--qina-primary); padding-top: 0.5rem; margin-top: 0.25rem; }

/* Logo preview */
.logo-preview img { border: 1px solid var(--qina-border); border-radius: var(--qina-radius-sm); padding: 4px; background: var(--qina-card); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
}
.empty-state h1 { font-size: 3rem; color: var(--qina-primary); }
.empty-state p { font-size: 1rem; margin: 0.5rem 0 1.5rem; }
.empty-text { text-align: center; padding: 1rem; color: var(--qina-text-secondary); font-size: 0.875rem; }

/* Settings */
.settings-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }

/* Dashboard stats row */
.stats-grid.dash-stats {
    grid-template-columns: 1fr 1fr 1fr;
}
.stats-grid.dash-stats .stat-card:first-child {
    grid-column: span 2;
}
.stats-grid.dash-stats .stat-card:first-child .stat-value {
    font-size: 1.8rem;
}
@media (max-width: 700px) {
    .stats-grid.dash-stats { grid-template-columns: 1fr 1fr; }
    .stats-grid.dash-stats .stat-card:first-child { grid-column: 1 / -1; }
}

/* Dashboard layout: chart + stacked stats */
.dash-layout {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
    align-items: stretch;
}
.dash-layout .card:first-child {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.dash-layout .card:first-child canvas {
    flex: 1;
    max-height: 260px;
}
.dash-layout .stacked-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 230px;
    flex-shrink: 0;
}
.dash-layout .stacked-stats .stat-card {
    padding: 0;
    margin: 0;
    flex: 1;
}
.dash-layout .stacked-stats .stat-card-body {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.dash-layout .stacked-stats .stat-icon {
    width: 28px;
    height: 28px;
    margin-bottom: 8px;
}
.dash-layout .stacked-stats .stat-icon svg {
    width: 16px;
    height: 16px;
}
.dash-layout .stacked-stats .stat-value {
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 900px) {
    .dash-layout { flex-direction: column; }
    .dash-layout .stacked-stats { width: 100%; flex-direction: row; flex-wrap: wrap; }
    .dash-layout .stacked-stats .stat-card { flex: 1; min-width: 120px; }
    .dashboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    /* Nav: hamburger visible, collapse becomes dropdown */
    .navbar { height: auto; position: relative; }
    .nav-container { flex-wrap: wrap; padding: 0 1rem; position: relative; min-height: 64px; }
    .nav-toggle { display: flex; position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); }
    .nav-center { order: 3; flex: 1 1 100%; }
    .nav-right { display: none; }

    .nav-collapse {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--qina-card);
        border-bottom: 1px solid var(--qina-border);
        box-shadow: 0 4px 16px rgba(0,0,0,0.12);
        padding: 0.5rem 1rem 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        z-index: 99;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .nav-collapse.open { display: flex; }
    .nav-collapse .nav-links {
        flex-direction: column;
        overflow: visible;
        gap: 0;
        flex: none;
    }
    .nav-collapse .nav-link {
        padding: 0.75rem 0.75rem;
        font-size: 0.95rem;
        border-radius: var(--qina-radius);
        border-bottom: 1px solid var(--qina-border);
    }
    .nav-collapse .nav-link:last-child { border-bottom: none; }
    .nav-collapse .nav-link.active::after { display: none; }
    .nav-center .nav-user { display: flex; }
    .nav-collapse .nav-user {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
        padding-top: 0.75rem;
        margin-top: 0.25rem;
        border-top: 1px solid var(--qina-border);
    }
    .nav-collapse .nav-user .btn { text-align: center; }

    .settings-grid .view-header { flex-direction: column; gap: 8px; }
    .settings-grid { grid-template-columns: 1fr; }
    .view-header-right { width: 100%; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.65rem; }
    .stat-value { font-size: 1.35rem; }
    .stat-label { font-size: 0.7rem; }
    .form-row { grid-template-columns: 1fr; }
    .search-bar .form-input, .search-bar .form-select { max-width: 100%; }
    .doc-header { flex-direction: column; }
    .doc-brand, .doc-meta { max-width: 100%; text-align: left; }
    /* Tables: stacked cards on mobile */
    .data-table thead { display: none; }
    .data-table tr {
        display: block;
        margin-bottom: 0.75rem;
        border: 1px solid var(--qina-border);
        border-radius: 8px;
        background: var(--qina-card);
        padding: 0.5rem 0.75rem;
    }
    .data-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--qina-border);
        gap: 0.5rem;
        text-align: left;
        white-space: normal;
    }
    .data-table td:last-child { border-bottom: none; }
    .data-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--qina-text-secondary);
        font-size: 0.7rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        flex-shrink: 0;
        min-width: 30%;
    }
    .data-table td.actions-cell,
    .data-table td.td-actions,
    .data-table td.th-actions {
        justify-content: flex-end;
        border-bottom: none;
        padding-top: 0.25rem;
        gap: 0.35rem;
    }
    .data-table td.actions-cell::before,
    .data-table td.td-actions::before,
    .data-table td.th-actions::before {
        display: none;
    }
    .data-table td.text-right { text-align: left; }
    .data-table td.text-center { text-align: left; }

    /* Banking tables: stack rows vertically */
    .banking-table { width: 100%; display: block; }
    .banking-table tr { display: flex; flex-wrap: wrap; gap: 0 0.5rem; }
    .banking-table td { padding: 2px 0; }

    /* Touch-friendly form controls: 44px min tap target, 16px to prevent iOS zoom */
    input, select, textarea { font-size: 16px; }
    .form-input, .form-select, .btn, .form-file {
        min-height: 44px;
    }
    .btn { padding: 0.6rem 1rem; }
    .btn-sm { min-height: 36px; padding: 0.4rem 0.7rem; font-size: 0.85rem; }
    .form-input, .form-select, .form-file { padding: 0.65rem 0.75rem; }
    .form-textarea { min-height: 88px; }
    .form-checkbox input[type="checkbox"] { width: 20px; height: 20px; }
    .theme-selector-wrapper { flex-direction: column; }
    .theme-preview-panel { min-height: 200px; }
    .theme-selector { grid-template-columns: 1fr 1fr; }

    /* Modal: full-width on mobile */
    .modal-content {
        max-width: 92vw;
        margin: 0 auto;
        padding: 1.25rem;
        border-radius: 8px;
    }

    /* Buttons: make primary action full-width */
    .view-header-right .btn-primary { flex: 1; }

    /* Toasts: reposition */
    .toast { top: 0.5rem; right: 0.5rem; left: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {

    h1 { font-size: 1.35rem; }
    h2 { font-size: 1.15rem; }

    .main-content { padding: 0 0.75rem 2rem; margin: 0.75rem auto; }
    .card { padding: 1rem; }

    .view-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    .view-header-left h1 { font-size: 1.25rem; }
    .view-header-right {
        width: 100%;
        gap: 0.35rem;
    }
    .view-header-right .btn { font-size: 0.8rem; padding: 0.4rem 0.65rem; flex: 1; text-align: center; }
    .view-header-right .btn-primary { flex: 1; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .stat-value { font-size: 1.35rem; }
    .stat-label { font-size: 0.7rem; }

    .stats-grid.dash-stats { grid-template-columns: 1fr 1fr; }

    .data-table { font-size: 0.75rem; }
    .data-table th, .data-table td { padding: 0.45rem 0.5rem; }
    .actions-cell .btn-sm { padding: 0.25rem 0.4rem; font-size: 0.7rem; }

    .search-bar { flex-direction: column; }
    .search-bar .form-input { max-width: 100%; }
    .search-bar .btn { width: 100%; }

    .pagination { gap: 0.15rem; }
    .page-link { padding: 0.3rem 0.55rem; font-size: 0.8rem; }

    .modal-content { max-width: 96vw; padding: 1rem; border-radius: 6px; }
    .modal-header h2 { font-size: 1.1rem; }

    .form-actions { flex-direction: column; }
    .form-actions .btn { width: 100%; }

    .dashboard-grid { gap: 0.75rem; }

    .auth-card { padding: 1.5rem; }
    .setup-card { padding: 1.5rem; }

    .dash-layout .stacked-stats .stat-card { min-width: 100px; padding: 0.75rem; }

    .badge { font-size: 0.65rem; padding: 0.1rem 0.4rem; }
}

/* Stationery / Theme Selector */
.theme-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.theme-option { cursor: pointer; padding: 8px; border: 2px solid var(--qina-border); border-radius: var(--qina-radius); text-align: center; transition: border-color .15s; }
.theme-option.selected { border-color: var(--qina-primary); }
.theme-option input[type="radio"] { display: none; }
.theme-preview { height: 80px; border-radius: 4px; overflow: hidden; margin-bottom: 6px; background: #fff; border: 1px solid #e1e4e8; display: flex; flex-direction: column; }
.tp-header { height: 24px; }
.tp-body { padding: 6px 8px; flex: 1; display: flex; flex-direction: column; gap: 3px; }
.tp-line { height: 5px; background: #d0d7de; border-radius: 3px; }
.tp-line-short { width: 50%; }
.tp-line-half { width: 70%; }
/* Colour pickers */
.theme-colours { display: flex; flex-direction: column; gap: 8px; min-width: 110px; }
.theme-colours .colour-row { display: flex; flex-direction: column; gap: 2px; }
.theme-colours .colour-row .form-label { font-size: .7rem; font-weight: 600; color: var(--qina-muted); text-transform: uppercase; letter-spacing: .5px; }
.theme-colours .color-picker { display: flex; align-items: center; gap: 4px; }
.theme-colours input[type="color"] { width: 32px; height: 32px; padding: 1px; border: 1px solid var(--qina-border); border-radius: 4px; cursor: pointer; }

/* Stationery 2-Column Layout */
.stationery-layout { display: flex; gap: 24px; align-items: flex-start; }
.stationery-preview { flex: 0 0 auto; width: 360px; }
.stationery-controls { flex: 1; min-width: 280px; }
.theme-preview-panel { width: 100%; height: 520px; border: 2px solid var(--qina-border); border-radius: var(--qina-radius); background: #d1d5db; display: flex; justify-content: center; padding: 20px 0; overflow: hidden; box-shadow: inset 0 1px 4px rgba(0,0,0,0.1); }
.theme-preview-panel .a4-page { width: 320px; min-height: 450px; background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,0.18); overflow-y: auto; flex-shrink: 0; }
.theme-preview-panel .a4-page::-webkit-scrollbar { width: 5px; }
.theme-preview-panel .a4-page::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* Color Picker */
.color-picker { display: flex; align-items: center; gap: 8px; }
.color-picker input[type="color"] { width: 40px; height: 40px; padding: 2px; border: 1px solid var(--qina-border); border-radius: 4px; cursor: pointer; }

/* WCAG 2.1 AA: Focus indicators */
:focus-visible {
    outline: 2px solid var(--qina-primary);
    outline-offset: 2px;
}

/* Print */
@media print {
    .navbar, .nav-container, .btn, .view-header-right, .search-bar, .pagination { display: none !important; }
    .card { box-shadow: none; border: none; }
    .main-content { margin: 0; padding: 0; }
}

/* PWA: installed as standalone (no browser chrome) */
@media (display-mode: standalone) {
    .navbar { padding-top: calc(0.8rem + var(--sa-top)); }
    .nav-container { min-height: 56px; }
    body { -webkit-user-select: none; user-select: none; }
    input, textarea { -webkit-user-select: text; user-select: text; }
}

/* Accessibility: reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .card:hover, .stat-card:hover { transform: none !important; }
    .btn-action:active { transform: none; }
    .nav-toggle-bar { transition: none; }
}