/* ============================================
   Calculette Financement — Styles
   ============================================ */

.cf-calc {
    --cf-accent: #2563eb;
    --cf-accent-hover: color-mix(in srgb, var(--cf-accent) 82%, #000);
    --cf-accent-light: color-mix(in srgb, var(--cf-accent) 10%, #fff);
    --cf-bg: #ffffff;
    --cf-card: #f8fafc;
    --cf-border: #e2e8f0;
    --cf-text: #1e293b;
    --cf-text-muted: #64748b;
    --cf-radius: 14px;
    --cf-danger: #ef4444;

    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    max-width: 620px;
    margin: 2rem auto;
    background: var(--cf-bg);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    box-shadow: 0 4px 32px rgba(0, 0, 0, .06);
    overflow: hidden;
    line-height: 1.5;
}

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

/* ── Header ─────────────────────────────────── */
.cf-header {
    background: var(--cf-accent);
    color: #fff;
    padding: 1.6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cf-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,.12) 0%, transparent 60%);
    pointer-events: none;
}
.cf-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -.02em;
    position: relative;
}
.cf-header p {
    margin: .35rem 0 0;
    font-size: .84rem;
    opacity: .82;
    position: relative;
}

/* ── Body ───────────────────────────────────── */
.cf-body {
    padding: 2rem;
}

/* ── Form groups ────────────────────────────── */
.cf-group {
    margin-bottom: 1.2rem;
}
.cf-group label {
    display: block;
    font-size: .78rem;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: .4rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.cf-input-wrap {
    position: relative;
}
.cf-input-wrap .cf-suffix {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: .88rem;
    color: var(--cf-text-muted);
    pointer-events: none;
    font-weight: 600;
}

.cf-calc input[type="number"],
.cf-calc select {
    width: 100%;
    padding: .78rem 1rem;
    font-size: 1rem;
    border: 1.5px solid var(--cf-border);
    border-radius: 8px;
    color: var(--cf-text);
    background: var(--cf-card);
    transition: border-color .2s ease, box-shadow .2s ease;
    outline: none;
    font-family: inherit;
    -moz-appearance: textfield;
    appearance: textfield;
}
.cf-calc input[type="number"]::-webkit-inner-spin-button,
.cf-calc input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.cf-calc input[type="number"]:focus,
.cf-calc select:focus {
    border-color: var(--cf-accent);
    box-shadow: 0 0 0 3px var(--cf-accent-light);
}
.cf-calc input.cf-has-suffix {
    padding-right: 3rem;
}

/* Select custom arrow */
.cf-calc select {
    cursor: pointer;
    -webkit-appearance: 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 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 2.5rem;
}

/* Field errors */
.cf-field-error {
    display: block;
    font-size: .78rem;
    color: var(--cf-danger);
    min-height: 1.1rem;
    margin-top: .25rem;
    font-weight: 500;
}

/* Error state on inputs */
.cf-calc input.cf-error {
    border-color: var(--cf-danger);
}
.cf-calc input.cf-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .15);
}

/* ── Button ─────────────────────────────────── */
.cf-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: .95rem;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    background: var(--cf-accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background .2s, transform .1s;
    margin-top: .6rem;
    letter-spacing: .01em;
    font-family: inherit;
}
.cf-btn:hover {
    background: var(--cf-accent-hover);
}
.cf-btn:active {
    transform: scale(.985);
}

/* ── Results ────────────────────────────────── */
.cf-results {
    display: none;
    margin-top: 1.6rem;
    border-top: 1.5px solid var(--cf-border);
    padding-top: 1.5rem;
}
.cf-results.cf-visible {
    display: block;
    animation: cfFadeIn .4s ease;
}
@keyframes cfFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.cf-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .8rem 1.1rem;
    border-radius: 8px;
    margin-bottom: .5rem;
    background: var(--cf-card);
    border: 1px solid transparent;
}
.cf-result-row:last-child {
    margin-bottom: 0;
}
.cf-result-row.cf-result-highlight {
    background: var(--cf-accent-light);
    border-color: color-mix(in srgb, var(--cf-accent) 20%, transparent);
}

.cf-result-label {
    font-size: .84rem;
    color: var(--cf-text-muted);
    font-weight: 500;
}
.cf-result-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--cf-accent);
    white-space: nowrap;
}
.cf-result-value.cf-result-big {
    font-size: 1.25rem;
}

/* ── Amortization table ─────────────────────── */
.cf-amort-wrap {
    margin-top: 1rem;
}

.cf-btn-link {
    background: none;
    border: none;
    color: var(--cf-accent);
    font-size: .88rem;
    font-weight: 600;
    cursor: pointer;
    padding: .5rem 0;
    font-family: inherit;
    transition: opacity .2s;
}
.cf-btn-link:hover {
    opacity: .75;
}

.cf-amort-table-wrap {
    max-height: 400px;
    overflow-y: auto;
    margin-top: .75rem;
    border: 1px solid var(--cf-border);
    border-radius: 8px;
}

.cf-amort-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .82rem;
}
.cf-amort-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}
.cf-amort-table th {
    background: var(--cf-accent);
    color: #fff;
    padding: .7rem .8rem;
    text-align: right;
    font-weight: 600;
    font-size: .76rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.cf-amort-table th:first-child {
    text-align: center;
}
.cf-amort-table td {
    padding: .6rem .8rem;
    text-align: right;
    border-bottom: 1px solid var(--cf-border);
    color: var(--cf-text);
}
.cf-amort-table td:first-child {
    text-align: center;
    font-weight: 600;
    color: var(--cf-text-muted);
}
.cf-amort-table tbody tr:hover {
    background: var(--cf-accent-light);
}
.cf-amort-table tbody tr:last-child td {
    border-bottom: none;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 520px) {
    .cf-body {
        padding: 1.25rem;
    }
    .cf-header {
        padding: 1.2rem 1.25rem;
    }
    .cf-result-row {
        flex-direction: column;
        align-items: flex-start;
        gap: .2rem;
    }
    .cf-result-value {
        font-size: 1.05rem;
    }
    .cf-amort-table {
        font-size: .75rem;
    }
}