:root {
    --app-bg: #f4f6f8;
    --app-panel: #ffffff;
    --app-border: #dce2e8;
    --app-text: #1f2933;
    --app-muted: #667085;
    --app-primary: #2563eb;
    --app-primary-dark: #1d4ed8;
    --app-soft: #eef4ff;
    --app-focus-ring: 0 0 0 4px rgba(37, 99, 235, 0.22);
}

body {
    min-height: 100vh;
    font-family: Inter, Roboto, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--app-bg);
    color: var(--app-text);
}

.app-navbar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--app-border);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    color: var(--app-text);
}

.btn {
    border-radius: 6px;
    font-weight: 600;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background: var(--app-primary-dark);
    border-color: var(--app-primary-dark);
}

.form-control,
.form-select,
.input-group-text {
    border-color: var(--app-border);
    border-radius: 6px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--app-primary);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

/* Strong, unmissable keyboard focus everywhere — helps anyone tabbing
   through the app, especially on the login page where it matters most. */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid var(--app-primary-dark);
    outline-offset: 2px;
}

/* ---------------------------------------------------------------
   Login page
   --------------------------------------------------------------- */

.login-page {
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.10), rgba(22, 163, 74, 0.08)),
        var(--app-bg);
}

.login-shell {
    min-height: 100vh;
}

.login-card {
    width: 100%;
    max-width: 440px;
    padding: 32px 28px;
    background: var(--app-panel);
    border: 1px solid var(--app-border);
    border-radius: 12px;
    box-shadow: 0 20px 45px -25px rgba(31, 41, 51, 0.35);
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 10px;
    background: var(--app-primary);
    color: #fff;
    font-weight: 800;
    flex: none;
}

.login-brand h1 {
    color: var(--app-text);
}

.login-brand p {
    color: var(--app-muted);
}

/* Larger, easier-to-read fields for the login form specifically.
   Labels stay visible above the field (see markup) rather than
   relying on placeholder text, which is easier for older users
   to scan and fill in correctly. */
.login-card .form-label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--app-text);
    margin-bottom: 6px;
}

.login-card .form-control-lg {
    height: 56px;
    font-size: 1.05rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
}

.login-card .form-control-lg:focus {
    box-shadow: var(--app-focus-ring);
}

.login-card .btn-primary.btn-lg {
    height: 56px;
    font-size: 1.05rem;
    border-radius: 8px;
}

/* Password field + plain-text show/hide toggle
   (easier to tap accurately on a phone than a small icon) */
.password-field {
    position: relative;
}

.password-field .form-control {
    padding-right: 4.25rem;
}

.password-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--app-primary);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.5rem 0.6rem;
    cursor: pointer;
    border-radius: 6px;
}

.password-toggle:hover {
    background: var(--app-soft);
}

.login-card .alert-danger {
    border-radius: 8px;
    font-size: 0.95rem;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.eyebrow {
    color: var(--app-primary);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.panel,
.metric-panel,
.form-panel,
.error-card {
    background: var(--app-panel);
    border: 1px solid var(--app-border);
    border-radius: 8px;
}

.panel {
    padding: 18px;
}

.panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.metric-panel {
    padding: 18px;
}

.metric-label {
    color: var(--app-muted);
    font-size: 0.85rem;
    font-weight: 700;
}

.metric-value {
    margin-top: 4px;
    font-size: clamp(1.7rem, 3vw, 2.15rem);
    font-weight: 800;
}

.panel-calendar {
    overflow: hidden;
}

#calendar {
    min-height: 680px;
}

.fc .fc-toolbar {
    gap: 12px;
    flex-wrap: wrap;
}

.fc .fc-toolbar-title {
    font-size: 1.25rem;
    font-weight: 800;
}

.fc .fc-button {
    border-radius: 6px;
}

.app-table th {
    color: var(--app-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
}

.app-table td,
.app-table th {
    vertical-align: middle;
    white-space: nowrap;
}

.action-cell {
    min-width: 220px;
}

.details-list dt {
    color: var(--app-muted);
}

.form-shell {
    display: flex;
    justify-content: center;
}

.form-panel {
    width: 100%;
    max-width: 820px;
    padding: 24px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

.error-shell {
    display: flex;
    justify-content: center;
    padding: 60px 16px;
}

.error-card {
    width: 100%;
    max-width: 780px;
    padding: 28px;
}

.debug-box {
    padding: 14px;
    background: #101828;
    color: #e5e7eb;
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}

.app-alert {
    border-radius: 8px;
}

@media (prefers-reduced-motion: reduce) {
    .btn,
    .form-control,
    .password-toggle {
        transition: none;
    }
}

@media (max-width: 767.98px) {
    .page-header,
    .panel-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .page-header .btn,
    .panel-heading .btn {
        width: 100%;
    }

    .login-card,
    .form-panel,
    .error-card {
        padding: 20px;
    }

    #calendar {
        min-height: 560px;
    }
}
/* ---------------------------------------------------------------
   Dashboard polish and booking workflow
   --------------------------------------------------------------- */
:root {
    --app-radius: 10px;
    --app-shadow: 0 18px 40px -28px rgba(15, 23, 42, 0.55);
    --app-success: #16a34a;
    --app-success-soft: #dcfce7;
    --app-warning: #f59e0b;
    --app-warning-soft: #fef3c7;
    --app-danger-soft: #fee2e2;
}

.panel,
.metric-panel,
.form-panel,
.error-card,
.modal-content {
    border-radius: var(--app-radius);
    box-shadow: var(--app-shadow);
}

.metric-panel {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 112px;
}

.metric-icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    flex: none;
    font-size: 1.35rem;
}

.metric-primary .metric-icon {
    background: var(--app-soft);
    color: var(--app-primary);
}

.metric-success .metric-icon {
    background: var(--app-success-soft);
    color: var(--app-success);
}

.metric-warning .metric-icon {
    background: var(--app-warning-soft);
    color: var(--app-warning);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 800;
}

.status-paid {
    color: #166534;
    background: var(--app-success-soft);
}

.status-pending {
    color: #92400e;
    background: var(--app-warning-soft);
}

.status-cancelled {
    color: #991b1b;
    background: var(--app-danger-soft);
}

.table-subtext {
    color: var(--app-muted);
    font-size: 0.82rem;
}

.form-section {
    padding: 18px;
    margin-bottom: 18px;
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius);
    background: #fff;
}

.form-section-header {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 16px;
}

.form-section-header > i {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    color: var(--app-primary);
    background: var(--app-soft);
    flex: none;
}

.form-section-header h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
}

.form-section-header p {
    margin: 2px 0 0;
    color: var(--app-muted);
    font-size: 0.9rem;
}

.payment-multiply {
    color: var(--app-muted);
    font-size: 1.4rem;
    font-weight: 800;
    padding-bottom: 0.55rem;
}

.total-amount-input {
    font-weight: 800;
    background: #f8fafc;
}

.summary-grid,
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.summary-item,
.detail-item,
.detail-notes {
    padding: 12px;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #f8fafc;
}

.summary-item span,
.detail-item span,
.detail-notes span {
    display: block;
    margin-bottom: 4px;
    color: var(--app-muted);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
}

.summary-item strong,
.detail-item strong {
    overflow-wrap: anywhere;
}

.fc .fc-daygrid-day-frame {
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.fc .fc-daygrid-day-frame:hover {
    background: #f8fafc;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.12);
}

.fc .fc-day-today {
    background: #eef4ff !important;
}

.fc .fc-day-today .fc-daygrid-day-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    color: #fff;
    background: var(--app-primary);
    border-radius: 999px;
    font-weight: 800;
}

.fc .fc-event {
    border-radius: 999px;
    border: 0 !important;
    padding: 2px 7px;
    font-weight: 700;
}

.fc .fc-button-primary {
    background: var(--app-primary);
    border-color: var(--app-primary);
}

@media (max-width: 767.98px) {
    .summary-grid,
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .payment-multiply {
        display: none;
    }

    .panel-calendar {
        overflow-x: auto;
    }

    .fc .fc-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .fc .fc-toolbar-chunk {
        display: flex;
        justify-content: center;
    }

    .app-table td,
    .app-table th {
        white-space: normal;
    }
}

/* ---------------------------------------------------------------
   Premium payment summary
   --------------------------------------------------------------- */
.payment-panel {
    position: relative;
    overflow: hidden;
    border-color: rgba(148, 163, 184, 0.36);
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(22, 163, 74, 0.07) 48%, rgba(245, 158, 11, 0.08)),
        #ffffff;
    box-shadow: 0 22px 50px -34px rgba(15, 23, 42, 0.72);
}

.payment-panel .form-section-header {
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.24);
}

.payment-layout {
    display: grid;
    gap: 14px;
}

.payment-inputs,
.payment-results {
    display: grid;
    gap: 12px;
}

.payment-field,
.payment-result {
    min-width: 0;
    padding: 14px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(12px);
}

.payment-result-total {
    border-color: rgba(37, 99, 235, 0.28);
    background: linear-gradient(180deg, rgba(238, 244, 255, 0.98), rgba(255, 255, 255, 0.94));
}

.payment-result-balance {
    border-color: rgba(22, 163, 74, 0.28);
    background: linear-gradient(180deg, rgba(236, 253, 245, 0.98), rgba(255, 255, 255, 0.94));
}

.payment-field .form-label,
.payment-result .form-label {
    margin-bottom: 8px;
    color: #475467;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
}

.payment-input-group .input-group-text {
    border-color: rgba(148, 163, 184, 0.42);
    background: #f8fafc;
    color: #475467;
    font-weight: 800;
}

.payment-input-group .input-group-text:first-child {
    width: 44px;
    justify-content: center;
    color: var(--app-primary);
}

.payment-input-group .form-control {
    min-height: 52px;
    border-color: rgba(148, 163, 184, 0.42);
    font-weight: 700;
}

.payment-result .form-control {
    min-height: 58px;
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    font-weight: 900;
    text-align: right;
}

.total-amount-input {
    color: #1d4ed8;
    background: rgba(255, 255, 255, 0.86);
}

.remaining-balance-input {
    color: #047857;
    background: rgba(255, 255, 255, 0.86);
}

.remaining-balance-input.is-negative {
    color: #b42318;
    background: #fff1f3;
}

.payment-formula-stack {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}

.payment-formula {
    display: flex;
    align-items: center;
    min-height: 36px;
    padding: 8px 10px;
    border: 1px solid rgba(148, 163, 184, 0.26);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
    color: #475467;
    font-size: 0.88rem;
    font-weight: 700;
    overflow-wrap: anywhere;
}

.payment-formula-balance {
    color: #065f46;
}

@media (min-width: 768px) {
    .payment-layout {
        grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
        align-items: stretch;
    }

    .payment-results {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .payment-panel {
        padding: 16px;
    }

    .payment-field,
    .payment-result {
        padding: 12px;
    }

    .payment-input-group .input-group-text:first-child {
        width: 40px;
    }

    .payment-result .form-control {
        min-height: 54px;
        font-size: 1.12rem;
    }

    .payment-formula {
        font-size: 0.82rem;
    }
}