/* ============================================================
   PAYENY — Global Design System
   Warm premium ledger aesthetic
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Manrope:wght@300;400;500;600;700&display=swap');

/* ── Design Tokens ── */
:root {
    --color-canvas:          #F7F4EC;
    --color-surface:         #FFFFFF;
    --color-surface-soft:    #F1EEE6;
    --color-ink:             #202923;
    --color-text-secondary:  #667068;
    --color-primary:         #356E61;
    --color-primary-hover:   #29594F;
    --color-primary-soft:    #E4EEEA;
    --color-terracotta:      #D7785C;
    --color-terracotta-soft: #F7E7E1;
    --color-amber:           #B98732;
    --color-amber-soft:      #F7EEDC;
    --color-danger:          #B55245;
    --color-danger-soft:     #F8E6E2;
    --color-border:          #DDD8CE;
    --color-border-light:    #EAE6DE;

    --sidebar-width: 256px;

    /* Bootstrap overrides via CSS variables */
    --bs-primary:         #356E61;
    --bs-primary-rgb:     53, 110, 97;
    --bs-secondary-rgb:   102, 112, 104;
    --bs-body-bg:         #F7F4EC;
    --bs-body-color:      #202923;
    --bs-border-color:    #DDD8CE;
    --bs-card-bg:         #FFFFFF;
    --bs-card-border-color: #DDD8CE;
    --bs-dropdown-bg:     #FFFFFF;
    --bs-dropdown-border-color: #DDD8CE;
    --bs-dropdown-color:  #202923;
    --bs-link-color:      #356E61;
    --bs-link-hover-color: #29594F;
    --bs-modal-bg:        #FFFFFF;

    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  14px;
    --radius-xl:  20px;
    --shadow-sm:  0 1px 3px rgba(32, 41, 35, 0.06), 0 1px 2px rgba(32, 41, 35, 0.04);
    --shadow-md:  0 4px 12px rgba(32, 41, 35, 0.08), 0 2px 4px rgba(32, 41, 35, 0.04);
    --shadow-lg:  0 8px 24px rgba(32, 41, 35, 0.10), 0 4px 8px rgba(32, 41, 35, 0.05);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-canvas);
    color: var(--color-ink);
    font-size: 14.5px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    color: var(--color-ink);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.serif { font-family: 'Instrument Serif', Georgia, serif; }

/* ── App Shell ── */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 0;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform 0.25s ease;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 20px 16px;
    text-decoration: none;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 8px;
}

.sidebar-logo-text {
    font-family: 'Instrument Serif', Georgia, serif;
    font-size: 1.45rem;
    color: var(--color-ink);
    letter-spacing: -0.01em;
    line-height: 1;
}

.sidebar-logo-mark {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo-mark svg {
    width: 18px;
    height: 18px;
    fill: #fff;
}

.sidebar-nav {
    flex: 1;
    padding: 8px 12px;
}

.sidebar-section-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--color-text-secondary);
    padding: 16px 8px 6px;
    opacity: 0.65;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    transition: background 0.15s ease, color 0.15s ease;
    margin-bottom: 2px;
    border: none;
}

.sidebar .nav-link:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.sidebar .nav-link.active {
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-weight: 600;
}

.sidebar .nav-link i {
    font-size: 1rem;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px 12px;
    border-top: 1px solid var(--color-border-light);
    margin-top: auto;
}

/* ── Main Content Area ── */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--color-canvas);
}

.top-bar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-ink);
}

.top-bar-sub {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 1px;
}

.page-content {
    padding: 28px 28px;
}

/* ── Cards ── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--color-border-light);
    padding: 16px 20px;
    font-weight: 600;
    color: var(--color-ink);
    font-size: 0.9rem;
}

.card-body {
    padding: 20px;
    color: var(--color-ink);
}

.card-footer {
    background: transparent;
    border-top: 1px solid var(--color-border-light);
    padding: 12px 20px;
    color: var(--color-text-secondary);
}

/* ── Stat Cards ── */
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px 22px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-soft);
}

.stat-card-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.stat-card-value {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--color-ink);
    letter-spacing: -0.03em;
    line-height: 1;
    font-family: 'Instrument Serif', Georgia, serif;
    font-style: normal;
}

.stat-card-value.text-primary { color: var(--color-primary) !important; }
.stat-card-value.text-danger { color: var(--color-danger) !important; }
.stat-card-value.text-amber { color: var(--color-amber); }

.stat-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-bottom: 12px;
}

.stat-icon.primary   { background: var(--color-primary-soft); color: var(--color-primary); }
.stat-icon.success   { background: var(--color-primary-soft); color: var(--color-primary); }
.stat-icon.warning   { background: var(--color-amber-soft); color: var(--color-amber); }
.stat-icon.danger    { background: var(--color-danger-soft); color: var(--color-danger); }
.stat-icon.secondary { background: var(--color-surface-soft); color: var(--color-text-secondary); }

/* ── Buttons ── */
.btn {
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: var(--radius-md);
    transition: all 0.18s ease;
    letter-spacing: 0.01em;
    border-width: 1.5px;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #fff;
    box-shadow: 0 2px 8px rgba(53, 110, 97, 0.35);
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: transparent;
}

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

.btn-secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-ink);
}

.btn-secondary:hover {
    background: var(--color-surface-soft);
    border-color: var(--color-border);
    color: var(--color-ink);
}

.btn-outline-secondary {
    color: var(--color-text-secondary);
    border-color: var(--color-border);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
    border-color: var(--color-border);
}

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

.btn-danger:hover {
    background: #9e4438;
    border-color: #9e4438;
    color: #fff;
}

.btn-outline-danger {
    color: var(--color-danger);
    border-color: var(--color-danger);
    background: transparent;
}

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

.btn-outline-light {
    color: var(--color-text-secondary);
    border-color: var(--color-border);
    background: transparent;
}

.btn-outline-light:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
    border-color: var(--color-border);
}

.btn-sm { font-size: 0.8rem; padding: 5px 12px; }
.btn-lg { font-size: 0.95rem; padding: 12px 24px; }

/* ── Forms ── */
.form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--color-ink);
    margin-bottom: 6px;
}

.form-control,
.form-select {
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-ink);
    font-family: 'Manrope', sans-serif;
    font-size: 0.875rem;
    padding: 9px 12px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control::placeholder {
    color: #adb5a8;
}

.form-control:focus,
.form-select:focus {
    background: var(--color-surface);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(53, 110, 97, 0.12);
    color: var(--color-ink);
    outline: none;
}

.form-control:disabled,
.form-select:disabled {
    background: var(--color-surface-soft);
    color: var(--color-text-secondary);
    border-color: var(--color-border-light);
}

.form-text {
    color: var(--color-text-secondary);
    font-size: 0.78rem;
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(53, 110, 97, 0.12);
    border-color: var(--color-primary);
}

.input-group-text {
    background: var(--color-surface-soft);
    border: 1.5px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ── Tables ── */
.table {
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--color-border-light);
    color: var(--color-ink);
}

.table thead th {
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 14px;
    background: var(--color-surface-soft);
    white-space: nowrap;
}

.table td {
    padding: 13px 14px;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-ink);
    font-size: 0.875rem;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table-hover tbody tr:hover td {
    background: var(--color-surface-soft);
}

/* ── Status Badges ── */
.badge {
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 0.03em;
    border-radius: 20px;
    padding: 4px 10px;
}

.status-badge-draft {
    background: var(--color-surface-soft);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.status-badge-sent {
    background: var(--color-amber-soft);
    color: var(--color-amber);
    border: 1px solid #e8d098;
}

.status-badge-viewed {
    background: #E8F0FE;
    color: #4366B0;
    border: 1px solid #b8cdf8;
}

.status-badge-paid {
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border: 1px solid #b8d8cf;
}

.status-badge-partial {
    background: var(--color-amber-soft);
    color: var(--color-amber);
    border: 1px solid #e8d098;
}

.status-badge-overdue {
    background: var(--color-danger-soft);
    color: var(--color-danger);
    border: 1px solid #e8b8b2;
}

.status-badge-void {
    background: var(--color-surface-soft);
    color: #999;
    border: 1px solid var(--color-border);
    text-decoration: line-through;
}

/* ── Alerts ── */
.alert {
    border-radius: var(--radius-md);
    border-width: 1px;
    font-size: 0.875rem;
}

.alert-success {
    background: var(--color-primary-soft);
    border-color: #b8d8cf;
    color: var(--color-primary);
}

.alert-danger {
    background: var(--color-danger-soft);
    border-color: #e8b8b2;
    color: var(--color-danger);
}

.alert-warning {
    background: var(--color-amber-soft);
    border-color: #e8d098;
    color: var(--color-amber);
}

.alert-info {
    background: #EAF2FF;
    border-color: #b8d4f8;
    color: #3060A8;
}

/* ── Dropdowns ── */
.dropdown-menu {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 6px;
    font-size: 0.875rem;
}

.dropdown-item {
    color: var(--color-ink);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    transition: background 0.12s ease;
    font-weight: 500;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.dropdown-item.text-danger { color: var(--color-danger) !important; }
.dropdown-item.text-danger:hover { background: var(--color-danger-soft); }

.dropdown-divider {
    border-color: var(--color-border-light);
    margin: 4px 0;
}

.dropdown-header {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 6px 12px 4px;
}

/* ── Modals ── */
.modal-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    color: var(--color-ink);
}

.modal-header {
    border-bottom: 1px solid var(--color-border-light);
    padding: 18px 24px;
}

.modal-title {
    font-weight: 700;
    color: var(--color-ink);
    font-size: 1rem;
}

.modal-body { padding: 24px; }

.modal-footer {
    border-top: 1px solid var(--color-border-light);
    padding: 16px 24px;
    gap: 8px;
}

.btn-close {
    filter: none;
    opacity: 0.4;
}

.btn-close:hover { opacity: 0.8; }

/* ── Toasts ── */
.toast {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--color-ink);
}

.toast-header {
    background: transparent;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-ink);
    font-weight: 600;
    font-size: 0.85rem;
}

.text-bg-success {
    background: var(--color-primary-soft) !important;
    color: var(--color-primary) !important;
    border-color: #b8d8cf !important;
}

.text-bg-danger {
    background: var(--color-danger-soft) !important;
    color: var(--color-danger) !important;
    border-color: #e8b8b2 !important;
}

.text-bg-warning {
    background: var(--color-amber-soft) !important;
    color: var(--color-amber) !important;
    border-color: #e8d098 !important;
}

.text-bg-dark {
    background: var(--color-surface-soft) !important;
    color: var(--color-ink) !important;
    border-color: var(--color-border) !important;
}

/* ── Needs Attention Items ── */
.attention-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.attention-row:last-child { border-bottom: none; }

.attention-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.attention-icon.overdue  { background: var(--color-danger-soft); color: var(--color-danger); }
.attention-icon.due-soon { background: var(--color-amber-soft); color: var(--color-amber); }
.attention-icon.info     { background: var(--color-primary-soft); color: var(--color-primary); }

/* ── User Avatar ── */
.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.client-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-surface-soft);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.72rem;
    border: 1.5px solid var(--color-border);
    flex-shrink: 0;
}

/* ── Page Headers ── */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.page-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-ink);
    margin-bottom: 2px;
}

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

/* ── Section Labels ── */
.section-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

/* ── Empty States ── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state-icon {
    width: 56px;
    height: 56px;
    background: var(--color-surface-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    border: 1.5px solid var(--color-border);
}

.empty-state h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-ink);
    margin-bottom: 6px;
}

.empty-state p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    max-width: 320px;
    margin: 0 auto 20px;
}

/* ── Paid Seal ── */
.paid-seal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2.5px solid var(--color-primary);
    color: var(--color-primary);
    font-size: 0.62rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    transform: rotate(-15deg);
    opacity: 0.9;
}

/* ── Active Timer Badge ── */
.timer-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-terracotta-soft);
    border: 1px solid #e8c0b0;
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-terracotta);
}

.timer-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-terracotta);
    animation: pulse-dot 1.4s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.7); }
}

/* ── Notifications Bell ── */
.btn-icon-soft {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: background 0.15s ease, color 0.15s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn-icon-soft:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

/* ── Utility ── */
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-amber { color: var(--color-amber) !important; }
.text-ink { color: var(--color-ink) !important; }
.text-terracotta { color: var(--color-terracotta) !important; }

.bg-primary { background: var(--color-primary) !important; }
.bg-canvas { background: var(--color-canvas) !important; }
.bg-surface { background: var(--color-surface) !important; }
.bg-primary-soft { background: var(--color-primary-soft) !important; }
.bg-danger-soft { background: var(--color-danger-soft) !important; }
.bg-amber-soft { background: var(--color-amber-soft) !important; }
.bg-terracotta-soft { background: var(--color-terracotta-soft) !important; }

.border-primary { border-color: var(--color-primary) !important; }
.border-payeny { border-color: var(--color-border) !important; }

.rounded-payeny { border-radius: var(--radius-lg) !important; }

.font-mono { font-family: 'Geist Mono', 'Roboto Mono', monospace; }

/* ── Navbar (public pages) ── */
.navbar-payeny {
    background: rgba(247, 244, 236, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow 0.25s ease;
}

.navbar-payeny.scrolled {
    box-shadow: var(--shadow-sm);
}

.navbar-payeny .navbar-brand {
    font-family: 'Instrument Serif', Georgia, serif;
    font-size: 1.5rem;
    color: var(--color-ink);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.navbar-payeny .nav-link {
    color: var(--color-text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.15s ease;
}

.navbar-payeny .nav-link:hover {
    color: var(--color-ink) !important;
}

/* ── Invoice Document Styles ── */
.invoice-document {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 740px;
}

.invoice-document-header {
    padding: 36px 40px 28px;
    border-bottom: 1px solid var(--color-border-light);
}

.invoice-document-body {
    padding: 28px 40px 36px;
}

.invoice-doc-table {
    width: 100%;
    border-collapse: collapse;
}

.invoice-doc-table thead th {
    padding: 8px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-secondary);
    border-bottom: 1.5px solid var(--color-border);
    background: transparent;
}

.invoice-doc-table td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.875rem;
    color: var(--color-ink);
}

.invoice-doc-table tfoot td {
    padding: 8px 12px;
    border-bottom: none;
    font-size: 0.875rem;
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1055;
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }
    .main-content {
        margin-left: 0;
    }
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(32, 41, 35, 0.4);
        z-index: 1054;
    }
    .sidebar-overlay.active { display: block; }
}

@media (max-width: 767.98px) {
    .page-content { padding: 16px; }
    .top-bar { padding: 10px 16px; }
    .stat-card { padding: 16px; }
    .stat-card-value { font-size: 1.4rem; }
    .invoice-document-header,
    .invoice-document-body { padding: 20px; }
}

/* ── Smooth transitions for interactive elements ── */
a, button, .nav-link, .dropdown-item, .btn, .stat-card {
    transition-property: color, background-color, border-color, box-shadow, transform, opacity;
    transition-duration: 0.15s;
    transition-timing-function: ease;
}

/* ── Chart.js custom colors ── */
:root {
    --chart-primary: #356E61;
    --chart-secondary: #B98732;
    --chart-grid: rgba(221, 216, 206, 0.5);
    --chart-label: #667068;
}

/* ── Reduce motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}