/* Conversion Calculator Pro - calculator.net benchmark style */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

.conv-calc-wrapper {
    --cc-primary:    #2563eb;
    --cc-primary-dk: #1d4ed8;
    --cc-bg:         #ffffff;
    --cc-surface:    #f8fafc;
    --cc-border:     #e2e8f0;
    --cc-text:       #0f172a;
    --cc-muted:      #64748b;
    --cc-accent:     #eff6ff;
    --cc-result-bg:  #f0f9ff;
    --cc-result-bd:  #bae6fd;
    --cc-success:    #10b981;
    --cc-radius:     12px;
    --cc-shadow:     0 4px 24px rgba(37,99,235,.10), 0 1px 3px rgba(0,0,0,.06);
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--cc-bg);
    border: 1px solid var(--cc-border);
    border-radius: var(--cc-radius);
    box-shadow: var(--cc-shadow);
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
    font-size: 15px;
}

/* Dark theme */
.conv-calc-wrapper[data-theme="dark"] {
    --cc-primary:    #3b82f6;
    --cc-primary-dk: #2563eb;
    --cc-bg:         #0f172a;
    --cc-surface:    #1e293b;
    --cc-border:     #334155;
    --cc-text:       #f1f5f9;
    --cc-muted:      #94a3b8;
    --cc-accent:     #1e3a5f;
    --cc-result-bg:  #0c2243;
    --cc-result-bd:  #1e40af;
}

/* Header */
.conv-calc-header {
    background: var(--cc-primary);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 60%, #3b82f6 100%);
}

.conv-calc-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.conv-calc-tagline {
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Tabs */
.conv-calc-tabs {
    display: flex;
    gap: 0;
    overflow-x: auto;
    background: var(--cc-surface);
    border-bottom: 2px solid var(--cc-border);
    padding: 0 8px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.conv-calc-tabs::-webkit-scrollbar { display: none; }

.conv-tab {
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    padding: 11px 14px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    color: var(--cc-muted);
    cursor: pointer;
    white-space: nowrap;
    transition: all .18s ease;
    border-radius: 0;
    outline: none;
}

.conv-tab:hover {
    color: var(--cc-primary);
    background: var(--cc-accent);
}

.conv-tab.active {
    color: var(--cc-primary);
    border-bottom-color: var(--cc-primary);
    font-weight: 700;
}

/* Body */
.conv-calc-body {
    padding: 24px;
    background: var(--cc-bg);
}

/* Input Row */
.conv-calc-input-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: end;
}

.conv-calc-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.conv-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--cc-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.conv-input-group {
    display: flex;
    border: 2px solid var(--cc-border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--cc-bg);
    transition: border-color .18s;
}
.conv-input-group:focus-within {
    border-color: var(--cc-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.conv-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    padding: 12px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 500;
    color: var(--cc-text);
    min-width: 0;
}

.conv-input.conv-output {
    background: var(--cc-surface);
    color: var(--cc-primary);
    font-weight: 700;
}

.conv-select {
    border: none;
    border-left: 2px solid var(--cc-border);
    background: var(--cc-surface);
    padding: 10px 12px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--cc-text);
    cursor: pointer;
    outline: none;
    min-width: 110px;
    max-width: 140px;
}

.conv-select:focus { background: var(--cc-accent); }

/* Swap Button */
.conv-swap-btn {
    background: var(--cc-surface);
    border: 2px solid var(--cc-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cc-primary);
    transition: all .18s ease;
    flex-shrink: 0;
    margin-bottom: 2px;
}
.conv-swap-btn:hover {
    background: var(--cc-primary);
    color: white;
    border-color: var(--cc-primary);
    transform: rotate(180deg);
}

/* Result Display */
.conv-result-display {
    margin-top: 18px;
    padding: 16px 20px;
    background: var(--cc-result-bg);
    border: 1.5px solid var(--cc-result-bd);
    border-radius: 10px;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.conv-result-formula {
    font-size: 15px;
    color: var(--cc-muted);
    font-weight: 500;
}

.conv-result-formula strong {
    color: var(--cc-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
}

/* Quick Reference Table */
.conv-quick-ref {
    margin-top: 20px;
    border: 1.5px solid var(--cc-border);
    border-radius: 10px;
    overflow: hidden;
}

.conv-quick-ref-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 16px;
    background: var(--cc-surface);
    font-size: 13px;
    font-weight: 600;
    color: var(--cc-text);
}

.conv-toggle-table {
    background: none;
    border: 1px solid var(--cc-border);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    cursor: pointer;
    color: var(--cc-primary);
    font-family: inherit;
    font-weight: 600;
    transition: all .15s;
}
.conv-toggle-table:hover { background: var(--cc-accent); }

.conv-table-wrap { overflow-x: auto; }

.conv-ref-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.conv-ref-table th {
    background: var(--cc-surface);
    padding: 8px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--cc-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--cc-border);
}
.conv-ref-table td {
    padding: 9px 16px;
    border-bottom: 1px solid var(--cc-border);
    color: var(--cc-text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}
.conv-ref-table tr:last-child td { border-bottom: none; }
.conv-ref-table tr:nth-child(even) td { background: var(--cc-surface); }

/* Footer */
.conv-calc-footer {
    padding: 10px 24px 14px;
    background: var(--cc-surface);
    border-top: 1px solid var(--cc-border);
    font-size: 12px;
    color: var(--cc-muted);
    min-height: 36px;
}

/* Currency note */
.conv-currency-note {
    font-size: 11px;
    color: var(--cc-muted);
    background: var(--cc-surface);
    border-radius: 6px;
    padding: 6px 12px;
    margin-top: 10px;
    border: 1px solid var(--cc-border);
}

/* Responsive */
@media (max-width: 600px) {
    .conv-calc-input-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .conv-swap-btn {
        width: 100%;
        border-radius: 8px;
        height: 38px;
        margin: 0;
    }
    .conv-swap-btn svg { transform: rotate(90deg); }
    .conv-swap-btn:hover svg { transform: rotate(90deg) rotate(180deg); }
    .conv-calc-body { padding: 16px; }
    .conv-calc-header { padding: 12px 16px; }
    .conv-calc-logo { font-size: 15px; }
    .conv-calc-tagline { display: none; }
    .conv-tab { padding: 10px 10px; font-size: 12px; }
    .conv-input { font-size: 16px; }
}