/**
 * IP Subnet Calculator block styles
 */
.subnet-calculator {
    padding: var(--wp--preset--spacing--60, 4rem) 0;
}

.subnet-calculator .container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.subnet-calc-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.subnet-calc-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: var(--wp--preset--color--primary-50, #eef2ff);
    color: var(--wp--preset--color--primary, #4f46e5);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.subnet-calc-header h1 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin: 0 0 0.75rem;
    line-height: 1.2;
}

.subnet-calc-header p {
    color: var(--wp--preset--color--text-muted, #6b7280);
    max-width: 640px;
    margin: 0 auto;
}

.subnet-calc-form {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 1rem;
    align-items: end;
    background: var(--wp--preset--color--surface, #ffffff);
    border: 1px solid var(--wp--preset--color--border, #e5e7eb);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.subnet-calc-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.subnet-calc-field label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--wp--preset--color--text, #111827);
}

.subnet-calc-field input,
.subnet-calc-field select {
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--wp--preset--color--border, #d1d5db);
    border-radius: 8px;
    font: inherit;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: #fff;
    color: var(--wp--preset--color--text, #111827);
    line-height: 1.4;
    transition: border-color 0.15s, box-shadow 0.15s;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.subnet-calc-field select {
    padding-right: 2.25rem;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.875rem center;
    background-size: 12px;
    cursor: pointer;
}

.subnet-calc-field input:focus,
.subnet-calc-field select:focus {
    outline: none;
    border-color: var(--wp--preset--color--primary, #4f46e5);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.subnet-calc-submit {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    background: var(--wp--preset--color--primary, #4f46e5);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.05s;
}

.subnet-calc-submit:hover {
    background: var(--wp--preset--color--primary-hover, #4338ca);
}

.subnet-calc-submit:active {
    transform: translateY(1px);
}

.subnet-calc-error {
    margin-top: 1rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
    font-size: 0.9375rem;
}

.subnet-calc-results {
    margin-top: 2rem;
    background: var(--wp--preset--color--surface, #ffffff);
    border: 1px solid var(--wp--preset--color--border, #e5e7eb);
    border-radius: 12px;
    padding: 1.5rem;
}

.subnet-calc-results-title {
    margin: 0 0 1.25rem;
    font-size: 1.25rem;
}

.subnet-calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin: 0;
}

.subnet-calc-grid > div {
    padding: 0.875rem 1rem;
    background: var(--wp--preset--color--background-muted, #f9fafb);
    border-radius: 8px;
    border: 1px solid var(--wp--preset--color--border, #e5e7eb);
}

.subnet-calc-grid dt {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--wp--preset--color--text-muted, #6b7280);
    margin-bottom: 0.25rem;
}

.subnet-calc-grid dd {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.9375rem;
    color: var(--wp--preset--color--text, #111827);
    word-break: break-all;
}

.subnet-calc-binary {
    grid-column: 1 / -1;
}

.subnet-calc-splits {
    margin-top: 2rem;
}

.subnet-calc-splits-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.subnet-calc-splits-header .subnet-calc-results-title {
    margin: 0;
}

.subnet-calc-export {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--wp--preset--color--border, #d1d5db);
    border-radius: 8px;
    background: #fff;
    color: var(--wp--preset--color--text, #111827);
    font: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.subnet-calc-export:hover {
    background: var(--wp--preset--color--background-muted, #f9fafb);
    border-color: var(--wp--preset--color--primary, #4f46e5);
    color: var(--wp--preset--color--primary, #4f46e5);
}

.subnet-calc-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--wp--preset--color--border, #e5e7eb);
    border-radius: 12px;
}

.subnet-calc-table {
    width: 100%;
    border-collapse: collapse;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.875rem;
}

.subnet-calc-table th,
.subnet-calc-table td {
    padding: 0.625rem 0.875rem;
    text-align: left;
    border-bottom: 1px solid var(--wp--preset--color--border, #e5e7eb);
    white-space: nowrap;
}

.subnet-calc-table th {
    background: var(--wp--preset--color--background-muted, #f9fafb);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    color: var(--wp--preset--color--text-muted, #6b7280);
}

.subnet-calc-table tr:last-child td {
    border-bottom: none;
}

.subnet-calc-table tbody tr:hover {
    background: var(--wp--preset--color--background-muted, #f9fafb);
}

@media (max-width: 720px) {
    .subnet-calc-form {
        grid-template-columns: 1fr;
    }
    .subnet-calc-actions .subnet-calc-submit {
        width: 100%;
    }
}