/* TimeTracker Styles */
:root {
    --tt-primary: #3b82f6;
    --tt-primary-hover: #2563eb;
    --tt-bg: #f9fafb;
    --tt-card: #ffffff;
    --tt-text: #1f2937;
    --tt-text-muted: #6b7280;
    --tt-border: #e5e7eb;
    --tt-radius: 12px;
}

.tt-calculator-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 480px;
    margin: 2rem auto;
    background: var(--tt-card);
    padding: 2rem;
    border-radius: var(--tt-radius);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--tt-border);
}

.tt-calculator-wrapper * {
    box-sizing: border-box;
}

.tt-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.tt-header h2 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    color: var(--tt-text);
}

.tt-header p {
    margin: 0;
    color: var(--tt-text-muted);
    font-size: 0.95rem;
}

.tt-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tt-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tt-input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tt-text);
}

.tt-input-group select,
.tt-input-group input {
    padding: 0.75rem;
    border: 1px solid var(--tt-border);
    border-radius: 8px;
    font-size: 1rem;
    width: 100%;
    background: var(--tt-bg);
}

.tt-input-group select:focus,
.tt-input-group input:focus {
    outline: 2px solid var(--tt-primary);
    border-color: transparent;
}

.tt-btn {
    margin-top: 0.5rem;
    padding: 0.85rem;
    background: var(--tt-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.tt-btn:hover {
    background: var(--tt-primary-hover);
}

.tt-result {
    margin-top: 2rem;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    animation: fadeIn 0.3s ease-in-out;
}

.tt-result.hidden {
    display: none;
}

.tt-result-header {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tt-primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.tt-result-main {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tt-text);
    margin-bottom: 0.25rem;
}

.tt-result-sub {
    font-size: 0.9rem;
    color: var(--tt-text-muted);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .tt-calculator-wrapper {
        margin: 1rem;
        padding: 1.5rem;
    }
}