:root {
    --blue: #2b7fd8;
    --blue-deep: #1e5ba8;
    --blue-ink: #2472c5;
    --blue-wash: #dfecfb;
    --yellow: #f4d758;
    --yellow-soft: #fff3cd;
    --red: #e84a5f;
    --red-ink: #c22c40;
    --mint: #4f9a6b;
    --mint-soft: #edf8f1;
    --cream: #fefcf6;
    --cream-dark: #faf6eb;
    --ink: #1a1a2e;
    --ink-light: #343646;
    --ink-faint: #5b5d6b;
    --rule: #d9d4c6;
    --rule-soft: #e8e2d5;
    --dark-panel: #151821;
    --dark-panel-2: #1d212c;
    --dark-rule: #2c3240;
    --card: #ffffff;
    --shadow: 0 4px 24px rgba(26, 26, 46, 0.06);
    --shadow-hover: 0 12px 34px rgba(26, 26, 46, 0.11);
    --radius: 16px;
    --radius-sm: 10px;
    --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
    background: var(--cream);
}

body {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    background: var(--cream);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

button, input, select {
    font: inherit;
}

button {
    cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid rgba(43, 127, 216, .28);
    outline-offset: 2px;
}

input::placeholder {
    color: #8a8c97;
}

.app-container {
    width: min(1120px, 100%);
    min-height: 100vh;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    position: relative;
    overflow: hidden;
    padding: 28px clamp(20px, 4vw, 48px) 26px;
    background: var(--cream);
    border-top: 4px solid var(--yellow);
    border-bottom: 1px solid var(--rule);
}

.header-content {
    position: relative;
    z-index: 1;
    width: min(100%, 1000px);
    margin: 0 auto;
    text-align: center;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    color: var(--ink);
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    font-weight: 800;
    letter-spacing: -.02em;
}

.logo i {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    color: var(--blue-deep);
    background: var(--blue-wash);
    border-radius: 12px;
    font-size: 1.08em;
}

.tagline {
    margin: 9px 0 0;
    color: var(--ink-faint);
    font-size: .82rem;
    letter-spacing: .14em;
}

.help-btn {
    position: absolute;
    top: 20px;
    right: clamp(16px, 3vw, 34px);
    z-index: 2;
    display: inline-grid;
    width: 40px;
    height: 40px;
    place-items: center;
    color: var(--blue-deep);
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(26, 26, 46, .06);
    transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.help-btn:hover {
    transform: translateY(-2px);
    background: var(--blue-wash);
    border-color: #a9c9ed;
}

.help-btn i {
    font-size: 1rem;
}

/* Main layout */
.main-content {
    flex: 1;
    width: 100%;
    padding: clamp(22px, 4vw, 48px) clamp(16px, 4vw, 48px) 30px;
}

.date-selector {
    display: flex;
    justify-content: center;
    margin-bottom: 28px;
}

.date-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    width: min(100%, 350px);
    padding: 14px 17px;
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.date-card:hover {
    border-color: #afcbe9;
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.date-card > i {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    flex: 0 0 auto;
    color: var(--blue-deep);
    background: var(--blue-wash);
    border-radius: 11px;
}

.date-input-wrap {
    min-width: 0;
    flex: 1;
}

.date-input-wrap label,
.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--ink-faint);
    font-size: .76rem;
    font-weight: 700;
}

.date-input-wrap input {
    width: 100%;
    padding: 0;
    color: var(--ink);
    background: transparent;
    border: 0;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

/* Scenario workspace */
.scenario-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
    padding: 14px 16px;
    background: var(--cream-dark);
    border: 1px solid var(--rule-soft);
    border-radius: var(--radius);
}

.scenario-info {
    display: grid;
    min-width: 0;
    gap: 2px;
}

.scenario-kicker {
    color: var(--blue-deep);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.scenario-info strong {
    color: var(--ink);
    font-size: .9rem;
    font-weight: 800;
}

.scenario-status {
    color: var(--ink-faint);
    font-size: .72rem;
}

.scenario-actions,
.table-view-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 34px;
    padding: 7px 10px;
    color: var(--ink-light);
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: 9px;
    font-size: .72rem;
    font-weight: 800;
    transition: transform .2s var(--ease), color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.tool-btn i {
    color: var(--blue-deep);
}

.tool-btn:hover {
    color: var(--blue-deep);
    background: var(--blue-wash);
    border-color: #afcbe9;
    transform: translateY(-1px);
}

.tool-btn.danger {
    color: var(--red-ink);
}

.tool-btn.danger i {
    color: var(--red-ink);
}

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

.tool-btn.danger:hover i {
    color: #fff;
}

.validation-summary {
    margin: -4px 0 22px;
    padding: 13px 16px;
    color: var(--red-ink);
    background: #fff0f2;
    border: 1px solid #e9a4ad;
    border-radius: 12px;
    font-size: .8rem;
}

.validation-summary[hidden] {
    display: none;
}

.validation-summary strong {
    display: block;
    margin-bottom: 4px;
    font-weight: 800;
}

.validation-summary ul {
    margin: 0;
    padding-left: 18px;
}

.validation-summary li + li {
    margin-top: 2px;
}

.is-invalid {
    border-color: var(--red-ink) !important;
    box-shadow: 0 0 0 4px rgba(194, 44, 64, .12) !important;
}

.loan-cards,
.events-section {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 22px;
}

.loan-card,
.event-card,
.analysis-panel,
.result-panel {
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.loan-card {
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.loan-card:hover,
.event-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.loan-card .card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--rule-soft);
}

.loan-card.is-disabled {
    opacity: .64;
}

.loan-card.is-disabled .card-header {
    filter: saturate(.6);
}

.loan-card.commercial .card-header {
    color: #214a73;
    background: #eaf3fd;
}

.loan-card.fund .card-header {
    color: #275f3c;
    background: var(--mint-soft);
}

.card-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 12px;
}

.loan-card.commercial .card-icon {
    color: var(--blue-deep);
    background: #cfe3f8;
}

.loan-card.fund .card-icon {
    color: var(--mint);
    background: #d6eedf;
}

.card-icon i {
    font-size: 1.1rem;
}

.card-header h3 {
    min-width: 0;
    flex: 1;
    margin: 0;
    font-size: 1.08rem;
    font-weight: 800;
}

.loan-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: currentColor;
    font-size: .7rem;
    font-weight: 800;
    cursor: pointer;
}

.loan-toggle input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--blue-deep);
}

.card-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

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

.input-with-unit {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-unit input,
select,
.event-row .input-group input {
    width: 100%;
    min-height: 44px;
    padding: 10px 13px;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--rule);
    border-radius: var(--radius-sm);
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}

.input-with-unit input {
    padding-right: 48px;
}

.input-with-unit input:hover,
select:hover,
.event-row .input-group input:hover {
    border-color: #aeb6c4;
}

.input-with-unit input:focus,
select:focus,
.event-row .input-group input:focus {
    outline: 0;
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(43, 127, 216, .14);
}

.input-with-unit .unit {
    position: absolute;
    right: 13px;
    color: var(--ink-faint);
    font-size: .8rem;
    font-weight: 700;
    pointer-events: none;
}

select {
    appearance: none;
    padding-right: 36px;
    background-color: #fff;
    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='%235b5d6b' d='M2.25 4.5 6 8.25 9.75 4.5' stroke='%235b5d6b' stroke-width='1.4' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 13px center;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    margin: 0;
}

/* Timeline events */
.event-card {
    padding: 20px;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.event-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--rule);
}

.event-header i {
    color: var(--blue-deep);
    font-size: 1rem;
}

.event-header h4 {
    margin: 0;
    color: var(--ink);
    font-size: .95rem;
    font-weight: 800;
}

.event-list {
    min-height: 20px;
    margin-bottom: 12px;
}

.event-row {
    margin-bottom: 10px;
    padding: 11px;
    background: var(--cream);
    border: 1px solid var(--rule-soft);
    border-radius: 12px;
    transition: border-color .2s var(--ease), background .2s var(--ease);
}

.event-row:last-child {
    margin-bottom: 0;
}

.event-row.type-com {
    background: #f8fbff;
    border-color: #afcbe9;
}

.event-row.type-fund {
    background: #f7fcf8;
    border-color: #c9e2d2;
}

.event-row-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.event-row select {
    flex: 0 0 78px;
    min-height: 38px;
    padding: 7px 28px 7px 10px;
    font-size: .8rem;
}

.event-row .input-group {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 124px;
    flex: 1 1 124px;
}

.event-row .input-group input {
    min-height: 38px;
    padding: 7px 9px;
    font-size: .82rem;
}

.date-badge {
    display: inline-block;
    padding: 5px 8px;
    color: var(--blue-deep);
    background: var(--blue-wash);
    border: 1px solid #c8dcf5;
    border-radius: 7px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .7rem;
    font-weight: 700;
    line-height: 1.3;
    white-space: nowrap;
}

.input-with-unit.small {
    flex: 0 0 90px;
}

.input-with-unit.small input {
    min-height: 38px;
    padding: 7px 28px 7px 9px;
    font-size: .82rem;
}

.input-with-unit.small .unit {
    right: 9px;
    font-size: .72rem;
}

.event-row .evt-strat {
    flex: 0 0 88px;
    min-height: 38px;
    padding: 7px 27px 7px 9px;
    font-size: .78rem;
}

.btn-del {
    display: inline-grid;
    width: 36px;
    height: 36px;
    place-items: center;
    flex: 0 0 auto;
    color: var(--red-ink);
    background: #fdecee;
    border: 1px solid #f3c4ca;
    border-radius: 9px;
    transition: transform .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.btn-del:hover {
    color: #fff;
    background: var(--red-ink);
    transform: translateY(-1px);
}

.btn-add {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    min-height: 42px;
    padding: 9px 14px;
    color: var(--blue-deep);
    background: #f8fbff;
    border: 1px dashed #afcbe9;
    border-radius: 10px;
    font-size: .82rem;
    font-weight: 700;
    transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.btn-add:hover {
    color: var(--ink);
    background: var(--yellow-soft);
    border-color: #e5cc70;
}

/* Hint and primary action */
.tip-card {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    margin-bottom: 20px;
    padding: 16px 18px;
    background: var(--yellow-soft);
    border: 1px solid #e5cc70;
    border-radius: var(--radius);
}

.tip-icon {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    flex: 0 0 auto;
    color: #5a4705;
    background: var(--yellow);
    border-radius: 50%;
}

.tip-content strong {
    display: block;
    margin-bottom: 2px;
    color: var(--ink);
    font-size: .84rem;
    font-weight: 800;
}

.tip-content p {
    color: #554711;
    font-size: .82rem;
    line-height: 1.65;
}

.btn-calculate {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 56px;
    margin-bottom: 26px;
    padding: 13px 24px;
    color: #fff;
    background: var(--blue-deep);
    border: 0;
    border-radius: 999px;
    box-shadow: 0 7px 20px rgba(30, 91, 168, .24);
    font-size: 1rem;
    font-weight: 800;
    transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
}

.btn-calculate:hover {
    background: #174b8c;
    box-shadow: 0 13px 28px rgba(30, 91, 168, .3);
    transform: translateY(-2px);
}

.btn-calculate:active {
    box-shadow: 0 5px 13px rgba(30, 91, 168, .22);
    transform: translateY(0);
}

/* Results */
.analysis-panel,
.result-panel {
    display: none;
    margin-bottom: 24px;
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 17px 20px;
    color: #fff;
    background: var(--dark-panel);
}

.panel-header i {
    color: var(--yellow);
    font-size: 1rem;
}

.panel-header h3 {
    min-width: 0;
    margin: 0;
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
}

.panel-header .badge {
    margin-left: auto;
    padding: 4px 9px;
    color: var(--ink);
    background: var(--yellow);
    border-radius: 999px;
    font-size: .68rem;
    font-weight: 800;
    white-space: nowrap;
}

.results-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 20px 0;
}

.table-view-copy {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.table-view-copy strong {
    color: var(--ink);
    font-size: .8rem;
    font-weight: 800;
}

.table-view-copy span {
    color: var(--ink-faint);
    font-size: .7rem;
}

.table-filters {
    display: inline-flex;
    align-items: center;
    padding: 3px;
    background: var(--cream-dark);
    border: 1px solid var(--rule-soft);
    border-radius: 999px;
}

.table-filter {
    min-height: 28px;
    padding: 4px 9px;
    color: var(--ink-faint);
    background: transparent;
    border: 0;
    border-radius: 999px;
    font-size: .68rem;
    font-weight: 800;
    transition: color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}

.table-filter:hover {
    color: var(--blue-deep);
}

.table-filter.is-active {
    color: var(--ink);
    background: var(--yellow);
    box-shadow: 0 2px 7px rgba(26, 26, 46, .1);
}

.export-btn {
    min-height: 34px;
    white-space: nowrap;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 20px 20px 4px;
}

.stat-card,
.summary-card {
    display: flex;
    align-items: center;
    gap: 13px;
    min-width: 0;
    padding: 15px;
    background: var(--cream);
    border: 1px solid var(--rule-soft);
    border-radius: 12px;
}

.stat-icon {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 12px;
}

.stat-card.savings .stat-icon {
    color: var(--mint);
    background: var(--mint-soft);
}

.stat-card.time .stat-icon {
    color: var(--blue-deep);
    background: var(--blue-wash);
}

.stat-info {
    min-width: 0;
}

.stat-label,
.summary-card span {
    display: block;
    margin-bottom: 2px;
    color: var(--ink-faint);
    font-size: .72rem;
    font-weight: 700;
}

.stat-info strong,
.summary-card strong {
    display: block;
    color: var(--ink);
    font-size: 1.08rem;
    font-weight: 800;
    line-height: 1.3;
}

.chart-card {
    margin: 16px 20px 20px;
    padding: 18px;
    background: var(--cream-dark);
    border: 1px solid var(--rule-soft);
    border-radius: 14px;
}

.chart-card h5,
.detail-card h5 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 14px;
    color: var(--ink);
    font-size: .84rem;
    font-weight: 800;
}

.chart-card h5 i,
.detail-card h5 i {
    color: var(--blue-deep);
}

.chart-container {
    position: relative;
    height: 220px;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 22px;
    margin-top: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--ink-faint);
    font-size: .76rem;
    font-weight: 600;
}

.legend-item .line {
    width: 24px;
    height: 3px;
    border-radius: 999px;
}

.legend-item.old .line {
    background: repeating-linear-gradient(90deg, #9aa3b1 0 4px, transparent 4px 8px);
}

.legend-item.new .line {
    background: var(--blue);
}

.detail-card {
    margin: 0 20px 20px;
}

.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--rule-soft);
    border-radius: 12px;
}

.detail-table,
.schedule-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: .78rem;
}

.detail-table {
    min-width: 470px;
}

.schedule-table {
    min-width: 650px;
}

.detail-table th,
.schedule-table th {
    padding: 11px 12px;
    color: #214a73;
    background: #eaf3fd;
    font-weight: 800;
    text-align: left;
    white-space: nowrap;
}

.detail-table td,
.schedule-table td {
    padding: 11px 12px;
    color: var(--ink-light);
    border-top: 1px solid var(--rule-soft);
    vertical-align: middle;
}

.detail-table tr:first-child td,
.schedule-table tr:first-child td {
    border-top: 0;
}

.detail-table tr:nth-child(even),
.schedule-table tr:nth-child(even) {
    background: #fffefb;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 20px 20px 16px;
}

.summary-card {
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
}

.summary-card > i {
    width: 30px;
    padding-top: 2px;
    color: var(--blue-deep);
    font-size: 1.2rem;
    text-align: center;
}

.summary-card.interest > i {
    color: #b28c14;
}

.summary-card.commercial > i {
    color: var(--blue-deep);
}

.summary-card.fund > i {
    color: var(--mint);
}

.schedule-card {
    padding: 0 20px 20px;
}

.schedule-table th {
    position: sticky;
    top: 0;
    z-index: 1;
    text-align: center;
}

.schedule-table td {
    text-align: right;
    white-space: nowrap;
}

.schedule-table .row-rate-change {
    background: #fffef5 !important;
}

.schedule-table .row-prepay {
    background: #f4fbf6 !important;
}

.note-tag {
    display: inline-block;
    margin-right: 4px;
    padding: 2px 6px;
    color: #fff;
    border-radius: 5px;
    font-size: .68rem;
    font-weight: 800;
    line-height: 1.4;
}

.note-tag.bg-com {
    background: var(--blue-deep);
}

.note-tag.bg-fund {
    background: var(--mint);
}

.diff-good {
    color: var(--mint) !important;
    font-weight: 800;
}

.diff-bad {
    color: var(--red-ink) !important;
    font-weight: 800;
}

.diff-neutral {
    color: var(--ink-faint);
}

/* Footer */
.app-footer {
    padding: 25px 20px 34px;
    color: var(--ink-faint);
    background: var(--cream-dark);
    border-top: 1px solid var(--rule-soft);
    font-size: .75rem;
    text-align: center;
}

/* Help modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    background: rgba(21, 24, 33, .66);
    backdrop-filter: blur(6px);
}

.modal-card {
    width: min(720px, 100%);
    max-height: min(720px, calc(100vh - 36px));
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: 18px;
    box-shadow: 0 24px 70px rgba(21, 24, 33, .28);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    color: #fff;
    background: var(--dark-panel);
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 9px;
    min-width: 0;
    margin: 0;
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
}

.modal-header h3 i {
    color: var(--yellow);
}

.modal-close {
    display: inline-grid;
    width: 34px;
    height: 34px;
    margin-left: auto;
    place-items: center;
    color: #fff;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 9px;
    transition: background .2s var(--ease);
}

.modal-close:hover {
    background: var(--red-ink);
}

.modal-body {
    max-height: min(530px, calc(100vh - 170px));
    overflow-y: auto;
    padding: 20px;
    color: var(--ink-light);
    font-size: .88rem;
    line-height: 1.75;
}

.modal-body strong {
    color: var(--ink);
}

.modal-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--rule-soft);
}

.modal-section h4 {
    margin: 0 0 8px;
    color: var(--ink);
    font-size: .88rem;
    font-weight: 800;
}

.modal-body ul {
    margin: 0;
    padding-left: 20px;
}

.modal-body li {
    margin: 6px 0;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: 14px 20px 18px;
    background: var(--cream-dark);
    border-top: 1px solid var(--rule-soft);
}

.modal-btn {
    min-height: 40px;
    padding: 9px 18px;
    color: #fff;
    background: var(--blue-deep);
    border: 0;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 800;
    transition: transform .2s var(--ease), background .2s var(--ease);
}

.modal-btn:hover {
    background: #174b8c;
    transform: translateY(-1px);
}

.share-card {
    width: min(680px, 100%);
}

.share-body > p {
    margin-bottom: 14px;
    color: var(--ink-light);
}

.share-link-row {
    display: flex;
    align-items: stretch;
    gap: 8px;
}

.share-link-row input {
    min-width: 0;
    flex: 1;
    padding: 10px 12px;
    color: var(--ink-light);
    background: var(--cream);
    border: 1px solid var(--rule);
    border-radius: 9px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .72rem;
}

.share-copy-btn {
    flex: 0 0 auto;
}

.toast {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 10000;
    max-width: min(360px, calc(100vw - 40px));
    padding: 10px 14px;
    color: #fff;
    background: var(--dark-panel);
    border: 1px solid var(--dark-rule);
    border-radius: 10px;
    box-shadow: 0 12px 28px rgba(21, 24, 33, .2);
    font-size: .78rem;
    font-weight: 700;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 820px) {
    .loan-cards,
    .events-section {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 560px) {
    .app-header {
        padding: 24px 16px 22px;
    }

    .help-btn {
        top: 16px;
        right: 14px;
        width: 36px;
        height: 36px;
    }

    .logo {
        gap: 9px;
        padding-right: 28px;
        font-size: 1.28rem;
    }

    .logo i {
        width: 38px;
        height: 38px;
    }

    .tagline {
        font-size: .7rem;
        letter-spacing: .08em;
    }

    .main-content {
        padding: 18px 14px 24px;
    }

    .scenario-toolbar {
        align-items: stretch;
        flex-direction: column;
        gap: 12px;
        padding: 14px;
    }

    .scenario-actions {
        justify-content: stretch;
    }

    .scenario-actions .tool-btn {
        flex: 1 1 86px;
    }

    .date-card {
        width: 100%;
    }

    .date-selector {
        margin-bottom: 20px;
    }

    .card-body,
    .event-card {
        padding: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-group {
        margin-bottom: 14px;
    }

    .event-row-content {
        align-items: stretch;
    }

    .event-row select,
    .event-row .evt-strat {
        flex-basis: calc(50% - 4px);
    }

    .event-row .input-group {
        min-width: 0;
        flex-basis: calc(50% - 4px);
    }

    .input-with-unit.small {
        flex: 1 1 calc(50% - 4px);
    }

    .btn-del {
        flex: 0 0 36px;
    }

    .tip-card {
        padding: 14px;
    }

    .stats-grid,
    .summary-grid {
        gap: 9px;
        padding: 14px 14px 2px;
    }

    .summary-card {
        flex-direction: column;
        align-items: center;
        padding: 12px 8px;
        text-align: center;
    }

    .summary-card > i {
        width: auto;
    }

    .stat-card {
        padding: 12px;
    }

    .chart-card,
    .detail-card {
        margin-right: 14px;
        margin-left: 14px;
    }

    .chart-card {
        padding: 14px;
    }

    .chart-container {
        height: 185px;
    }

    .schedule-card {
        padding: 0 14px 14px;
    }

    .panel-header {
        padding: 15px 16px;
    }

    .panel-header .badge {
        padding: 3px 7px;
        font-size: .62rem;
    }

    .results-toolbar {
        align-items: stretch;
        flex-direction: column;
        padding: 14px 14px 0;
    }

    .table-view-actions {
        justify-content: stretch;
    }

    .table-filters {
        flex: 1;
    }

    .table-filter {
        flex: 1;
    }

    .export-btn {
        flex: 0 0 auto;
    }

    .share-link-row {
        flex-direction: column;
    }

    .modal-body {
        padding: 17px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}

@media print {
    .help-btn,
    .btn-add,
    .btn-del,
    .btn-calculate,
    .tip-card,
    .app-footer {
        display: none !important;
    }

    body,
    .app-header {
        background: #fff;
    }

    .loan-card,
    .event-card,
    .analysis-panel,
    .result-panel {
        box-shadow: none;
    }
}