:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #10b981;
    --bg-color: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar-custom {
    background-color: var(--card-bg);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 1.5rem;
}

/* Tarjetas */
.card-custom {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* IP Display Grande */
.ip-display {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 0.5rem;
    word-break: break-all;
}

.ip-label {
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

/* Detalles */
.detail-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-right: 1rem;
    width: 32px;
    text-align: center;
}

.detail-content {
    flex-grow: 1;
}

.detail-title {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
}

/* Botones */
.btn-primary-custom {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-primary-custom:hover {
    background-color: var(--primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

/* Footer */
footer {
    margin-top: auto;
    padding: 2rem 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
}