/* ============================================================
   ANNUITY PAYOUT CALCULATOR — annuity-payout-calc.css
   Namespace prefix: apc-  (Annuity Payout Calculator)
   ============================================================ */

/* ── CSS Variables (mirror brand color-scheme) ─────────────── */
:root {
    --apc-accent:        #0ea5e9;
    --apc-accent-dark:   #0369a1;
    --apc-accent-light:  #e0f2fe;
    --apc-accent-hover:  #bae6fd;
    --apc-interest:      #fbbf24;
    --apc-teal:          #14b8a6;
    --apc-green:         #22c55e;
    --apc-warning-text:  #b45309;
    --apc-warning-bg:    #fffbeb;
    --apc-warning-brd:   #fde68a;
    --apc-bg:            #ffffff;
    --apc-bg-soft:       #f8fafc;
    --apc-bg-muted:      #f1f5f9;
    --apc-text-primary:  #0f172a;
    --apc-text-secondary:#475569;
    --apc-text-muted:    #94a3b8;
    --apc-border:        #e2e8f0;
    --apc-border-soft:   #f1f5f9;
    --apc-shadow-focus:  0 0 0 4px rgba(14, 165, 233, 0.15);
    --apc-radius:        10px;
    --apc-radius-sm:     6px;
    --apc-transition:    0.18s ease;
}

/* ── WIDGET CARD ────────────────────────────────────────────── */
#apc-calculator-container {
    background: var(--apc-bg);
    border: 1px solid var(--apc-border);
    border-radius: var(--apc-radius);
    padding: 0;
    overflow: hidden;
}

/* ── TABS ───────────────────────────────────────────────────── */
.apc-tabs {
    display: flex;
    border-bottom: 2px solid var(--apc-border);
    background: var(--apc-bg-soft);
}

.apc-tab-btn {
    flex: 1;
    padding: 13px 16px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--apc-text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color var(--apc-transition), border-color var(--apc-transition), background var(--apc-transition);
    white-space: nowrap;
}

.apc-tab-btn:hover {
    color: var(--apc-accent);
    background: var(--apc-accent-light);
}

.apc-tab-btn.apc-active {
    color: var(--apc-accent-dark);
    border-bottom-color: var(--apc-accent);
    background: var(--apc-bg);
}

/* ── WIDGET BODY ────────────────────────────────────────────── */
.apc-widget-body {
    padding: 22px 22px 20px;
}

.apc-widget-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--apc-text-primary);
    margin: 0 0 18px;
}

/* ── INPUT GRID ─────────────────────────────────────────────── */
.apc-inputs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

@media (max-width: 560px) {
    .apc-inputs-grid {
        grid-template-columns: 1fr;
    }
}

.apc-input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.apc-input-group.apc-full-width {
    grid-column: 1 / -1;
}

.apc-input-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--apc-text-primary);
    letter-spacing: 0.01em;
}

.apc-input-hint {
    font-size: 0.72rem;
    font-weight: 400;
    color: var(--apc-text-muted);
}

.apc-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.apc-input-prefix,
.apc-input-suffix {
    position: absolute;
    font-size: 0.83rem;
    font-weight: 600;
    color: var(--apc-text-muted);
    pointer-events: none;
    user-select: none;
}

.apc-input-prefix { left: 10px; }
.apc-input-suffix { right: 10px; }

.apc-calc-input {
    width: 100%;
    padding: 9px 32px 9px 10px;
    font-size: 0.88rem;
    color: var(--apc-text-primary);
    background: var(--apc-bg-soft);
    border: 1.5px solid var(--apc-border);
    border-radius: var(--apc-radius-sm);
    outline: none;
    transition: border-color var(--apc-transition), box-shadow var(--apc-transition);
    -moz-appearance: textfield;
    box-sizing: border-box;
}

.apc-calc-input.apc-has-prefix {
    padding-left: 24px;
}

.apc-calc-input:focus {
    border-color: var(--apc-accent);
    box-shadow: var(--apc-shadow-focus);
    background: var(--apc-bg);
}

.apc-calc-input::-webkit-inner-spin-button,
.apc-calc-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

/* SELECT */
.apc-calc-select {
    width: 100%;
    padding: 9px 10px;
    font-size: 0.88rem;
    color: var(--apc-text-primary);
    background: var(--apc-bg-soft);
    border: 1.5px solid var(--apc-border);
    border-radius: var(--apc-radius-sm);
    outline: none;
    cursor: pointer;
    transition: border-color var(--apc-transition), box-shadow var(--apc-transition);
    box-sizing: border-box;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3 5l4 4 4-4' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

.apc-calc-select:focus {
    border-color: var(--apc-accent);
    box-shadow: var(--apc-shadow-focus);
    background-color: var(--apc-bg);
}

.apc-input-desc {
    font-size: 0.72rem;
    color: var(--apc-text-muted);
    line-height: 1.3;
}

/* ── BUTTON ROW ─────────────────────────────────────────────── */
.apc-btn-row {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.apc-btn-primary {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 11px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    color: #fff;
    background: var(--apc-accent);
    border: none;
    border-radius: var(--apc-radius-sm);
    cursor: pointer;
    transition: background var(--apc-transition), transform 0.1s;
}

.apc-btn-primary:hover {
    background: var(--apc-accent-dark);
}

.apc-btn-primary:active {
    transform: scale(0.98);
}

.apc-btn-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--apc-text-secondary);
    background: var(--apc-bg-muted);
    border: 1.5px solid var(--apc-border);
    border-radius: var(--apc-radius-sm);
    cursor: pointer;
    transition: background var(--apc-transition), color var(--apc-transition);
    white-space: nowrap;
}

.apc-btn-clear:hover {
    background: #fee2e2;
    color: #dc2626;
    border-color: #fca5a5;
}

/* ── RESULTS ────────────────────────────────────────────────── */
.apc-results {
    margin-top: 20px;
    border-top: 1px solid var(--apc-border-soft);
    padding-top: 18px;
    animation: apcFadeIn 0.28s ease;
}

@keyframes apcFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.apc-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

@media (max-width: 560px) {
    .apc-results-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 380px) {
    .apc-results-grid {
        grid-template-columns: 1fr;
    }
}

.apc-result-card {
    background: var(--apc-bg-soft);
    border: 1px solid var(--apc-border);
    border-radius: var(--apc-radius-sm);
    padding: 11px 12px;
    text-align: center;
}

.apc-result-card.apc-result-primary {
    background: var(--apc-accent-light);
    border-color: var(--apc-accent);
    grid-column: 1 / -1;
}

@media (min-width: 561px) {
    .apc-result-card.apc-result-primary {
        grid-column: auto;
    }
}

.apc-result-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--apc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.apc-result-value {
    display: block;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--apc-text-primary);
    line-height: 1.2;
}

.apc-result-card.apc-result-primary .apc-result-value {
    color: var(--apc-accent-dark);
    font-size: 1.35rem;
}

.apc-result-sub {
    display: block;
    font-size: 0.7rem;
    color: var(--apc-text-muted);
    margin-top: 2px;
}

/* ── BREAKDOWN BAR ──────────────────────────────────────────── */
.apc-breakdown {
    margin-bottom: 16px;
}

.apc-breakdown-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--apc-text-secondary);
    margin-bottom: 7px;
}

.apc-breakdown-bar {
    display: flex;
    height: 12px;
    border-radius: 20px;
    overflow: hidden;
    background: var(--apc-bg-muted);
}

.apc-bar-principal {
    background: var(--apc-accent);
    transition: width 0.4s ease;
    height: 100%;
}

.apc-bar-interest {
    background: var(--apc-interest);
    height: 100%;
    flex: 1;
}

.apc-breakdown-legend {
    display: flex;
    gap: 16px;
    margin-top: 7px;
    flex-wrap: wrap;
}

.apc-legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.76rem;
    color: var(--apc-text-secondary);
}

.apc-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.apc-legend-dot.apc-dot-principal { background: var(--apc-accent); }
.apc-legend-dot.apc-dot-interest  { background: var(--apc-interest); }

/* ── AMORTIZATION TABLE ─────────────────────────────────────── */
.apc-table-section {
    margin-top: 4px;
}

.apc-table-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--apc-accent-dark);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 0;
    transition: color var(--apc-transition);
}

.apc-table-toggle:hover { color: var(--apc-accent); }

.apc-table-toggle svg {
    transition: transform 0.2s;
}

.apc-table-toggle.apc-open svg {
    transform: rotate(180deg);
}

.apc-table-wrap {
    margin-top: 10px;
    border: 1px solid var(--apc-border);
    border-radius: var(--apc-radius-sm);
    overflow: auto;
    max-height: 320px;
}

.apc-schedule-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.79rem;
    min-width: 400px;
}

.apc-schedule-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.apc-schedule-table th {
    background: var(--apc-bg-muted);
    color: var(--apc-text-secondary);
    font-weight: 700;
    padding: 8px 10px;
    text-align: right;
    border-bottom: 2px solid var(--apc-border);
    white-space: nowrap;
}

.apc-schedule-table th:first-child { text-align: left; }

.apc-schedule-table td {
    padding: 7px 10px;
    text-align: right;
    color: var(--apc-text-secondary);
    border-bottom: 1px solid var(--apc-border-soft);
}

.apc-schedule-table td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--apc-text-primary);
}

.apc-schedule-table tbody tr:last-child td { border-bottom: none; }
.apc-schedule-table tbody tr:hover td { background: var(--apc-bg-soft); }

/* ── NOTICE BOX ─────────────────────────────────────────────── */
.apc-notice {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    background: var(--apc-warning-bg);
    border: 1px solid var(--apc-warning-brd);
    border-radius: var(--apc-radius-sm);
    padding: 11px 13px;
    margin-top: 16px;
}

.apc-notice-icon {
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.apc-notice p {
    margin: 0;
    font-size: 0.78rem;
    color: var(--apc-warning-text);
    line-height: 1.5;
}

/* ── FORMULA BOX ────────────────────────────────────────────── */
.apc-formula-block {
    background: var(--apc-bg-muted);
    border-left: 3px solid var(--apc-teal);
    border-radius: 0 var(--apc-radius-sm) var(--apc-radius-sm) 0;
    padding: 12px 16px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    color: var(--apc-text-primary);
    overflow-x: auto;
    margin: 12px 0;
}