/* Flatpickr theme overrides */
        .flatpickr-calendar {
            border-radius: 12px !important; box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 2px 8px rgba(0,0,0,0.2) !important;
            border: 1px solid var(--border) !important; font-family: inherit !important;
            background: var(--surface) !important; color: var(--text) !important;
        }
        .flatpickr-months { border-radius: 12px 12px 0 0; background: var(--header-bg); padding: 4px 0; display: flex; align-items: center; }
        .flatpickr-months .flatpickr-month { height: 40px; color: var(--text) !important; overflow: visible; }
        .flatpickr-current-month { font-weight: 700 !important; font-size: 0.875rem !important; color: var(--text) !important; padding: 4px 0 0 0 !important; display: flex; align-items: center; justify-content: center; gap: 6px; }
        .flatpickr-current-month .flatpickr-monthDropdown-months,
        .flatpickr-current-month input.cur-year { font-weight: 700 !important; font-size: 0.875rem !important; color: var(--text) !important; background: transparent !important; }
        .flatpickr-current-month .flatpickr-monthDropdown-months {
            padding: 4px 6px !important; border-radius: 6px;
            background: var(--header-bg) !important; color: var(--text) !important;
        }
        .flatpickr-current-month .flatpickr-monthDropdown-months:hover { background: var(--accent-light) !important; }
        .flatpickr-current-month .flatpickr-monthDropdown-months .flatpickr-monthDropdown-month,
        .flatpickr-current-month .flatpickr-monthDropdown-months option {
            background: var(--surface) !important; color: var(--text) !important;
        }
        .flatpickr-current-month .numInputWrapper { display: none !important; }
        .flatpickr-yearDropdown {
            font-family: inherit; font-weight: 700; font-size: 0.875rem;
            color: var(--text); background: transparent;
            border: 1.5px solid var(--border); border-radius: 6px;
            padding: 4px 6px; cursor: pointer; outline: none;
            appearance: none; -webkit-appearance: none; -moz-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2378716C' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat; background-position: right 6px center; padding-right: 22px;
        }
        .flatpickr-yearDropdown:hover { border-color: var(--accent); }
        .flatpickr-yearDropdown:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
        [data-theme="dark"] .flatpickr-yearDropdown { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23A8A29E' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); }
        .flatpickr-yearDropdown option { background: var(--surface); color: var(--text); }

        .flatpickr-weekdays { background: var(--header-bg) !important; }
        span.flatpickr-weekday { font-weight: 700 !important; font-size: 0.6875rem !important; color: var(--text-muted) !important; background: var(--header-bg) !important; }
        .flatpickr-days, .dayContainer { background: var(--surface) !important; }
        .flatpickr-day {
            border-radius: 8px !important; font-weight: 600 !important; font-size: 0.8125rem !important;
            line-height: 38px !important; height: 38px !important; max-width: 38px !important;
            color: var(--text) !important; background: transparent !important; border-color: transparent !important;
        }
        .flatpickr-day.prevMonthDay, .flatpickr-day.nextMonthDay { color: var(--text-muted) !important; }
        .flatpickr-day.flatpickr-disabled { color: var(--text-muted) !important; opacity: 0.4; }
        .flatpickr-day.selected, .flatpickr-day.selected:hover {
            background: var(--accent) !important; border-color: var(--accent) !important; color: #fff !important;
        }
        .flatpickr-day:hover { background: var(--accent-light) !important; border-color: var(--accent-border) !important; }
        .flatpickr-day.today:not(.selected) { border-color: var(--accent) !important; }
        .flatpickr-months .flatpickr-prev-month, .flatpickr-months .flatpickr-next-month {
            padding: 8px !important; color: var(--text) !important; fill: var(--text) !important;
        }
        .flatpickr-months .flatpickr-prev-month svg, .flatpickr-months .flatpickr-next-month svg { fill: var(--text) !important; }
        .flatpickr-months .flatpickr-prev-month:hover svg, .flatpickr-months .flatpickr-next-month:hover svg {
            fill: var(--accent) !important;
        }
        .grid { display: flex; flex-direction: column; gap: 20px; }
        @media (min-width: 768px) {
            .grid { display: grid; grid-template-columns: 1fr 380px; gap: 24px; align-items: start; }
        }
        .main-col { display: flex; flex-direction: column; gap: 20px; }

        .card {
            background: var(--surface); border: 1px solid var(--border);
            border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
            transition: background var(--tr), border-color var(--tr);
        }
        .card-body { padding: 20px; }
        @media (min-width: 768px) { .card-body { padding: 24px; } }

        .field { display: flex; flex-direction: column; gap: 6px; }
        .field + .field { margin-top: 16px; }
        .field-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .row-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: start; }
        .row-2col > .field + .field { margin-top: 0; }
        .row-2col-bottom { align-items: end; }
        .row-2col .quick-btn { align-self: flex-start; width: auto; max-width: max-content; }
        @media (max-width: 480px) { .row-2col { grid-template-columns: 1fr; } }
        .input-suffix { display: inline-flex; align-items: center; gap: 6px; }
        .input-suffix .suffix { font-size: 0.875rem; color: var(--text-secondary); font-weight: 600; }
        .field label { font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); }

        .input {
            display: block; width: 100%; max-width: 200px; padding: 10px 12px;
            font-size: 0.875rem; font-weight: 600; color: var(--text);
            background: var(--surface); border: 1.5px solid var(--border);
            border-radius: var(--radius-xs); outline: none; font-family: inherit;
            transition: border-color var(--tr), box-shadow var(--tr), background var(--tr), color var(--tr);
        }
        .input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
        .input-sm { max-width: 100px; text-align: center; }

        .divider { height: 1px; background: var(--border-light); margin: 20px 0; }

        .quick-btn {
            display: inline-flex; align-items: center; padding: 6px 10px;
            font-size: 0.6875rem; font-weight: 700; color: var(--accent);
            background: var(--accent-light); border: 1px solid var(--accent-border);
            border-radius: 6px; cursor: pointer; transition: all var(--tr);
            white-space: nowrap; font-family: inherit;
        }
        .quick-btn:hover { filter: brightness(0.95); }

        .section-header {
            display: flex; align-items: center; justify-content: space-between;
            padding: 14px 16px; background: var(--header-bg); border-bottom: 1px solid var(--border);
            gap: 8px; flex-wrap: wrap;
        }
        @media (min-width: 768px) { .section-header { padding: 14px 20px; } }

        .section-title {
            display: flex; align-items: center; gap: 8px;
            font-size: 0.8125rem; font-weight: 700; color: var(--text); line-height: 1.3;
        }
        .dot { width: 4px; height: 16px; border-radius: 4px; flex-shrink: 0; }
        .dot-amber { background: var(--warning); }
        .dot-rose { background: var(--danger); }

        .add-btn {
            display: inline-flex; align-items: center; gap: 4px; padding: 5px 10px;
            font-size: 0.6875rem; font-weight: 700; color: var(--text-secondary);
            background: var(--surface); border: 1px solid var(--border);
            border-radius: 6px; cursor: pointer; transition: all var(--tr);
            box-shadow: 0 1px 2px rgba(0,0,0,0.04); font-family: inherit; white-space: nowrap;
        }
        .add-btn:hover { background: var(--header-bg); color: var(--text); }
        .add-btn svg { width: 12px; height: 12px; }

        .list-empty {
            text-align: center; padding: 24px 16px;
            font-size: 0.75rem; font-weight: 600; color: var(--text-muted);
        }
        .list-items { padding: 12px 16px; display: flex; flex-direction: column; gap: 10px; }
        @media (min-width: 768px) { .list-items { padding: 16px 20px; } }

        .list-row { display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; }
        .list-row .input {
            max-width: none; flex: 1; min-width: 0; width: 100%; padding: 8px 10px; font-size: 0.75rem;
        }
        .list-row .input-date { min-width: 0; flex: 1; }
        .list-row select {
            flex: 1; min-width: 100px; padding: 8px 10px; font-size: 0.75rem; font-weight: 600;
            color: var(--text); background: var(--surface); border: 1.5px solid var(--border);
            border-radius: var(--radius-xs); outline: none; appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2378716C' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat; background-position: right 8px center;
            padding-right: 28px; font-family: inherit; transition: border-color var(--tr), box-shadow var(--tr);
        }
        [data-theme="dark"] .list-row select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
        }
        .list-row select:focus { border-color: var(--danger); box-shadow: 0 0 0 3px var(--danger-light); }
        .list-row .input-hours { max-width: 56px; min-width: 56px; flex: 0; text-align: center; }
        .list-sep { color: var(--text-muted); font-size: 0.75rem; flex-shrink: 0; }

        .remove-btn {
            display: flex; align-items: center; justify-content: center;
            width: 28px; height: 28px; background: none; border: none;
            border-radius: 6px; color: var(--text-muted); cursor: pointer;
            transition: all var(--tr); flex-shrink: 0;
        }
        .remove-btn:hover { color: var(--danger); background: var(--danger-light); }
        .remove-btn svg { width: 16px; height: 16px; }

        .sections-row { display: flex; flex-direction: column; gap: 20px; }
        .sections-row > .card { min-width: 0; }

        .result-card { position: relative; }
        @media (min-width: 768px) { .result-card { position: sticky; top: 24px; } }

        .result-header {
            padding: 20px 24px; text-align: center; border-bottom: 1px solid var(--border);
            background: linear-gradient(to bottom, var(--result-grad-from), var(--result-grad-to));
        }
        .result-header h2 { font-size: 1.0625rem; font-weight: 800; }
        .result-body { padding: 24px; }
        .result-section + .result-section { margin-top: 24px; }

        .result-label {
            font-size: 0.625rem; font-weight: 700; text-transform: uppercase;
            letter-spacing: 0.08em; color: var(--text-muted); text-align: center; margin-bottom: 10px;
        }
        .result-table {
            width: 100%; border-radius: var(--radius-sm); overflow: hidden;
            border: 1px solid var(--accent-border);
        }
        .result-table.danger { border-color: var(--danger-border); }
        .result-table-head { display: grid; grid-template-columns: 1fr 1fr 1fr; }
        .result-table-head > div {
            padding: 8px; text-align: center; font-size: 0.625rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.05em;
        }
        .result-table.success .result-table-head { background: var(--result-success-bg); color: var(--accent-strong); }
        .result-table.success .result-table-head > div + div { border-left: 1px solid var(--accent-border); }
        .result-table.danger .result-table-head { background: var(--result-danger-bg); color: var(--danger-strong); }
        .result-table.danger .result-table-head > div + div { border-left: 1px solid var(--danger-border); }
        .result-table-body { display: grid; grid-template-columns: 1fr 1fr 1fr; background: var(--surface); }
        .result-table-body > div { padding: 14px 8px; text-align: center; font-size: 1.375rem; font-weight: 800; }
        .result-table.success .result-table-body > div { color: var(--accent-strong); }
        .result-table.success .result-table-body > div + div { border-left: 1px solid var(--accent-border); }
        .result-table.danger .result-table-body > div { color: var(--danger-strong); }
        .result-table.danger .result-table-body > div + div { border-left: 1px solid var(--danger-border); }

        .calendar-box { background: var(--calendar-box-bg); border-radius: var(--radius-sm); padding: 16px; text-align: center; }
        .calendar-box .val { font-size: 1.125rem; font-weight: 800; }
        .calendar-box .lbl { font-size: 0.6875rem; font-weight: 600; color: var(--text-muted); margin-top: 2px; }

        .result-empty {
            text-align: center; padding: 32px 16px;
            font-size: 0.8125rem; font-weight: 500; color: var(--text-muted);
        }

        .mobile-result-bar {
            display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
            background: var(--surface); border-top: 1px solid var(--border);
            box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
            padding: 10px 12px;
            padding-bottom: calc(10px + env(safe-area-inset-bottom));
            transition: transform 0.3s ease, opacity 0.3s ease;
            transform: translateY(110%); opacity: 0;
        }
        .mobile-result-bar.visible { transform: translateY(0); opacity: 1; }
        .mobile-result-bar-inner { max-width: 600px; margin: 0 auto; }
        .mobile-result-bar .calc-btn { width: 100%; }
        @media (max-width: 767px) {
            .mobile-result-bar { display: block; }
            .container { padding-bottom: 96px; }
        }
        @media (min-width: 768px) { .mobile-result-bar { display: none !important; } }

        .date-input-wrap { position: relative; max-width: 200px; width: 100%; }
        .date-input-wrap .input { max-width: none; padding-right: 36px; cursor: pointer; }
        .date-input-wrap .date-icon {
            position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
            width: 16px; height: 16px; color: var(--text-muted); pointer-events: none;
        }
        .list-row .date-input-wrap { flex: 1 1 0; min-width: 0; max-width: none; }
        .list-row .date-input-wrap .input { padding: 7px 26px 7px 8px; font-size: 0.75rem; }
        .list-row .date-input-wrap .date-icon { width: 12px; height: 12px; right: 6px; }
        .list-row.ul-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 6px; align-items: center; }
        .list-row.ul-row .list-sep { display: none; }

        .subtitle-row { display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; }
        .info-btn {
            display: inline-flex; align-items: center; gap: 4px;
            padding: 4px 10px; border-radius: 999px;
            background: var(--accent-light); color: var(--accent-strong);
            border: 1px solid var(--accent-border); cursor: pointer;
            font-family: inherit; font-weight: 700; font-size: 0.75rem;
            line-height: 1.2; transition: all var(--tr); white-space: nowrap;
        }
        .info-btn svg { width: 12px; height: 12px; }
        .info-btn:hover { background: var(--accent); color: #fff; }
        .modal-backdrop {
            position: fixed; inset: 0; background: rgba(0,0,0,0.55);
            display: none; align-items: flex-start; justify-content: center;
            z-index: 200; padding: 24px 16px; overflow-y: auto;
            backdrop-filter: blur(2px);
        }
        .modal-backdrop.open { display: flex; }
        .modal {
            background: var(--surface); color: var(--text);
            border-radius: var(--radius); box-shadow: var(--shadow);
            max-width: 640px; width: 100%; margin: auto;
            border: 1px solid var(--border); animation: fadeIn 0.25s ease-out;
        }
        .modal-header {
            display: flex; align-items: center; justify-content: space-between;
            gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border-light);
        }
        .modal-header h3 { font-size: 1rem; font-weight: 800; }
        .modal-close {
            background: none; border: none; cursor: pointer; color: var(--text-muted);
            width: 32px; height: 32px; border-radius: 8px; display: flex;
            align-items: center; justify-content: center; transition: all var(--tr);
        }
        .modal-close:hover { color: var(--text); background: var(--header-bg); }
        .modal-close svg { width: 20px; height: 20px; }
        .modal-body { padding: 16px 20px 20px; font-size: 0.875rem; line-height: 1.6; }
        .modal-body p { margin: 0 0 12px; }
        .modal-body p:last-child { margin-bottom: 0; }
        .modal-body h4 { font-size: 0.9375rem; font-weight: 800; margin: 16px 0 8px; color: var(--accent-strong); }
        .modal-body ul, .modal-body ol { margin: 0 0 12px; padding-left: 22px; }
        .modal-body li { margin-bottom: 4px; }
        .modal-body strong { font-weight: 700; color: var(--text); }
        .modal-body code { background: var(--header-bg); padding: 1px 5px; border-radius: 4px; font-size: 0.8125rem; }

        .result-col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
        .calc-action { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
        @media (max-width: 767px) { .calc-action { display: none; } }
        .calc-btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 10px;
            padding: 14px 22px; border-radius: var(--radius-sm); border: none;
            background: var(--accent); color: #fff; font: inherit;
            font-size: 0.9375rem; font-weight: 800; letter-spacing: 0.01em;
            cursor: pointer; box-shadow: var(--shadow); transition: all var(--tr);
        }
        .calc-btn:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
        .calc-btn:active:not(:disabled) { transform: translateY(0); }
        .calc-btn:disabled { opacity: 0.7; cursor: not-allowed; }
        .calc-btn-icon { width: 18px; height: 18px; }
        .calc-btn-spinner { display: none; width: 16px; height: 16px; border-radius: 50%;
            border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff;
            animation: spin 0.8s linear infinite;
        }
        .calc-btn.loading .calc-btn-spinner { display: inline-block; }
        .calc-btn.loading .calc-btn-icon { display: none; }
        @keyframes spin { to { transform: rotate(360deg); } }
        .stale-hint {
            display: none; text-align: center; font-size: 0.75rem; font-weight: 600;
            color: var(--danger-strong); padding: 4px 8px;
        }
        .stale-hint.visible { display: block; }

        @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
        .fade-in { animation: fadeIn 0.3s ease-out; }
        :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        @media print {
            body { background: white; color: black; }
            .container { padding: 0; }
            .card { box-shadow: none; border: 1px solid #ddd; }
            .mobile-result-bar, .toolbar { display: none !important; }
        }