/* finansiell-specific.css — Finansiell Kalkulator (HP 12C/17BII+ inspired) */

/* Dark green finance theme */
body {
    background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calculator-card {
    border: 1px solid rgba(16, 185, 129, 0.25);
}

/* ── Tab navigation ─────────────────────────────────── */
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 20px 0 10px;
    padding: 8px;
    background: #f1f5f9;
    border-radius: 12px;
}

.tab-btn {
    flex: 1 1 auto;
    min-width: 90px;
    padding: 10px 14px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    background: transparent;
    color: #64748b;
    white-space: nowrap;
}

.tab-btn:hover {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.tab-btn.active {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

/* ── Tab panels ─────────────────────────────────────── */
.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

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

/* ── Section headings ───────────────────────────────── */
.section-title {
    font-size: 1.1em;
    font-weight: 700;
    color: #1e3a5f;
    margin: 22px 0 14px;
    padding-bottom: 6px;
    border-bottom: 2px solid #10b981;
}

/* ── Buttons ────────────────────────────────────────── */
.calculate-btn {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
}

.calculate-btn:hover {
    box-shadow: 0 15px 30px rgba(16, 185, 129, 0.4);
}

input[type="number"]:focus, select:focus, input[type="text"]:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

/* Small utility buttons (add/remove cash flow) */
.btn-sm {
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-add {
    background: #d1fae5;
    color: #065f46;
}

.btn-add:hover { background: #10b981; color: white; }

.btn-remove {
    background: #fee2e2;
    color: #991b1b;
}

.btn-remove:hover { background: #ef4444; color: white; }

/* ── Results ────────────────────────────────────────── */
.results {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-left: 5px solid #10b981;
}

.results h3 {
    color: #065f46;
    margin-bottom: 16px;
    font-size: 1.2em;
}

.result-item {
    padding: 13px 0;
}

.result-item:last-child {
    border-top: 2px solid #10b981;
    padding-top: 16px;
    font-size: 1.2em;
    color: #065f46;
}

.result-label { color: #065f46; }
.result-value { color: #064e3b; }

/* Highlight box for key result */
.result-highlight {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
    color: white;
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 12px 0;
    font-size: 1.1em;
    font-weight: 700;
}

.result-highlight .hl-value {
    font-size: 1.4em;
    font-weight: 800;
}

.result-positive { color: #6ee7b7; }
.result-negative { color: #fca5a5; }

/* ── Cash flow table ────────────────────────────────── */
.cf-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    padding: 8px 12px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.cf-row label {
    min-width: 55px;
    font-size: 13px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 0;
}

.cf-row input {
    flex: 1;
    padding: 8px 12px;
    font-size: 14px;
}

/* ── Amortization table ─────────────────────────────── */
.amort-table-wrap {
    overflow-x: auto;
    margin-top: 16px;
    border-radius: 10px;
    border: 1px solid #d1fae5;
    max-height: 380px;
    overflow-y: auto;
}

.amort-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.amort-table thead th {
    background: #065f46;
    color: white;
    padding: 10px 12px;
    text-align: right;
    position: sticky;
    top: 0;
    z-index: 1;
}

.amort-table thead th:first-child { text-align: left; }

.amort-table tbody tr:nth-child(even) { background: #f0fdf4; }
.amort-table tbody tr:hover { background: #d1fae5; }

.amort-table td {
    padding: 8px 12px;
    border-bottom: 1px solid #e2e8f0;
    text-align: right;
    color: #374151;
    font-size: 12.5px;
}

.amort-table td:first-child { text-align: left; font-weight: 600; color: #065f46; }

/* ── TVM solver layout ──────────────────────────────── */
.tvm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

@media (max-width: 600px) {
    .tvm-grid { grid-template-columns: 1fr; }
}

.tvm-solve-select {
    background: #f0fdf4;
    border: 2px solid #10b981;
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 16px;
}

.tvm-solve-select label {
    color: #065f46;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 6px;
}

/* ── Sensitivity table ──────────────────────────────── */
.sensitivity-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin-top: 12px;
}

.sensitivity-table th {
    background: #1e3a5f;
    color: white;
    padding: 9px 12px;
    text-align: center;
    font-size: 12px;
}

.sensitivity-table td {
    padding: 7px 10px;
    border-bottom: 1px solid #e2e8f0;
    text-align: center;
    font-size: 12.5px;
}

.sensitivity-table tr:nth-child(even) { background: #f8fafc; }
.sensitivity-table .pos { color: #059669; font-weight: 600; }
.sensitivity-table .neg { color: #dc2626; font-weight: 600; }

/* ── Canvas charts ──────────────────────────────────── */
.chart-wrap {
    position: relative;
    margin: 16px 0;
    background: #fff;
    border-radius: 10px;
    border: 1px solid #d1fae5;
    padding: 12px;
}

canvas {
    display: block;
    max-width: 100%;
}

/* ── Formula box ────────────────────────────────────── */
.formula-box {
    background: #1e293b;
    color: #e2e8f0;
    border-radius: 10px;
    padding: 14px 18px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    margin: 12px 0;
    border-left: 4px solid #10b981;
    line-height: 1.7;
}

.formula-box .formula-label {
    color: #6ee7b7;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 4px;
}

/* ── Bond ───────────────────────────────────────────── */
.bond-metric {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #d1fae5;
}

.bond-metric:last-child { border-bottom: none; }
.bond-metric-label { color: #065f46; font-weight: 600; }
.bond-metric-value { color: #064e3b; font-weight: 700; }

/* ── Error / warning ────────────────────────────────── */
.error-msg {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    color: #991b1b;
    padding: 10px 14px;
    font-size: 14px;
    margin-top: 10px;
}

/* ── SEO content section ────────────────────────────── */
.seo-section {
    background: rgba(255,255,255,0.95);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    margin-top: 0;
}

.seo-section h2 {
    color: #1e3a5f;
    font-size: 1.5em;
    font-weight: 700;
    margin: 24px 0 10px;
    text-align: left;
}

.seo-section h3 {
    color: #065f46;
    font-size: 1.15em;
    font-weight: 700;
    margin: 20px 0 8px;
}

.seo-section p {
    color: #374151;
    line-height: 1.75;
    margin-bottom: 14px;
}

.seo-section ul {
    margin: 0 0 14px 22px;
}

.seo-section ul li {
    color: #374151;
    line-height: 1.7;
    margin-bottom: 5px;
}

.internal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 18px 0;
}

.internal-link-btn {
    display: inline-block;
    padding: 9px 18px;
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.internal-link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 768px) {
    .tab-btn {
        font-size: 12px;
        padding: 8px 10px;
    }

    .result-highlight {
        flex-direction: column;
        gap: 6px;
        text-align: center;
    }

    .result-highlight .hl-value { font-size: 1.2em; }

    .amort-table { font-size: 11px; }
    .amort-table td, .amort-table thead th { padding: 6px 8px; }

    .seo-section { padding: 20px; }
}