/* ===========================================
   ISO Week Number Finder - Tool Specific Styles
   =========================================== */

/* Tool Container */
.iso-box {
    max-width: 800px;
    margin: 0 auto;
}

/* Input Section */
.iso-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: flex-end;
    background: #f9fafb;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    margin-bottom: 25px;
}

.iso-input-group {
    flex: 1;
    min-width: 200px;
}

.iso-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 6px;
}

.iso-date-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
    color: #1f2937;
}

.iso-btn-group {
    display: flex;
    gap: 10px;
}

.iso-btn {
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.1s, filter 0.2s;
}

.iso-btn-primary {
    background: #0ea5e9;
    color: white;
}
.iso-btn-primary:hover { background: #0284c7; }

.iso-btn-secondary {
    background: #e5e7eb;
    color: #374151;
}
.iso-btn-secondary:hover { background: #d1d5db; }

/* Result Display Section */
.iso-result-card {
    background: #ffffff;
    border: 2px solid #0ea5e9;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    margin-bottom: 25px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.iso-result-label {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: #6b7280;
    margin-bottom: 5px;
}

.iso-week-number {
    font-size: 4rem;
    font-weight: 800;
    color: #111827;
    line-height: 1;
    margin: 10px 0;
}

.iso-year-sub {
    font-size: 1.5rem;
    color: #4b5563;
    font-weight: 500;
}

/* Details Table */
.iso-details-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
}

.iso-details-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.95rem;
}

.iso-details-table tr:last-child td {
    border-bottom: none;
}

.iso-key {
    font-weight: 600;
    color: #374151;
    background: #f9fafb;
    width: 40%;
}

.iso-val {
    color: #1f2937;
    text-align: right;
}

/* Responsive */
@media (max-width: 600px) {
    .iso-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .iso-week-number {
        font-size: 3rem;
    }
}