/**
 * SysUtils Mail Utils - Frontend CSS Optimized
 * Estils essencials per Mail Utils frontend
 * @version 2.1.0
 */

/* =============================================================================
   VARIABLES CSS
   ============================================================================= */
:root {
    --mail-primary: #8b5cf6;
    --mail-hover: #7c3aed;
    --mail-success: #10b981;
    --mail-warning: #f59e0b;
    --mail-error: #ef4444;
    --mail-text: #374151;
    --mail-text-light: #6b7280;
    --mail-border: #e2e8f0;
    --mail-bg: #f8fafc;
    --mail-radius: 8px;
    --mail-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --mail-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

/* =============================================================================
   BASE STYLES
   ============================================================================= */
.sysutils-mail-frontend {
    font-family: var(--mail-font);
    line-height: 1.6;
    color: var(--mail-text);
    background: white;
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: var(--mail-shadow);
    border: 1px solid var(--mail-border);
    overflow: hidden;
}

/* =============================================================================
   LAYOUT COMPONENTS
   ============================================================================= */
.sysutils-tool-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.sysutils-tool-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sysutils-tool-description {
    opacity: 0.9;
    font-size: 1rem;
}

.sysutils-tool-content {
    padding: 2rem;
}

/* =============================================================================
   FORM CONTROLS
   ============================================================================= */
.sysutils-form-group {
    margin-bottom: 1.5rem;
}

.sysutils-form-label {
    display: block;
    font-weight: 600;
    color: var(--mail-text);
    margin-bottom: 0.5rem;
}

.sysutils-form-input,
.sysutils-form-select,
.sysutils-form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--mail-border);
    border-radius: var(--mail-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    font-family: var(--mail-font);
}

.sysutils-form-input:focus,
.sysutils-form-select:focus,
.sysutils-form-textarea:focus {
    outline: none;
    border-color: var(--mail-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

/* =============================================================================
   BUTTONS
   ============================================================================= */
.sysutils-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--mail-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    font-family: var(--mail-font);
    font-size: 1rem;
}

.sysutils-btn-primary {
    background: var(--mail-primary);
    color: white;
}

.sysutils-btn-primary:hover {
    background: var(--mail-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

/* =============================================================================
   LOADING STATES
   ============================================================================= */
.sysutils-loading {
    text-align: center;
    padding: 3rem;
    color: var(--mail-text-light);
}

.sysutils-spinner-container {
    text-align: center;
    padding: 3rem;
    color: var(--mail-text-light);
}

.sysutils-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--mail-border);
    border-top: 4px solid var(--mail-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.sysutils-loading-text {
    margin: 1rem 0 0 0;
    font-size: 1rem;
    color: var(--mail-text-light);
    text-align: center;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =============================================================================
   RESULT CARDS - MAIL UTILS SPECIFIC
   ============================================================================= */
.sysutils-mail-complete-results {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    font-family: var(--mail-font);
}

/* Header principal del domini */
.sysutils-mail-main-info {
    background: linear-gradient(135deg, var(--mail-primary) 0%, var(--mail-hover) 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.mail-domain-display {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.mail-operation-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Seccions principals */
.mail-section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--mail-border);
    box-shadow: var(--mail-shadow);
    transition: all 0.2s ease;
}

.mail-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.mail-section h4 {
    color: var(--mail-primary);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #ede9fe;
}

/* TLS Score */
.tls-score {
    background: linear-gradient(135deg, var(--mail-success) 0%, #059669 100%);
    color: white;
    padding: 1rem;
    border-radius: var(--mail-radius);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    margin: 1rem 0;
}

/* MX Records */
.mx-summary {
    background: var(--mail-bg);
    border: 1px solid var(--mail-border);
    border-radius: var(--mail-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.mx-summary-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--mail-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mx-records-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mx-record-item {
    background: white;
    padding: 1rem;
    border-radius: 6px;
    border-left: 4px solid #64748b;
    font-family: 'Courier New', monospace;
    transition: all 0.2s ease;
}

.mx-record-item.primary {
    border-left-color: var(--mail-success);
    background: #f0fdf4;
}

.mx-record-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.mx-priority {
    font-weight: 600;
    color: var(--mail-text);
}

.mx-target {
    color: var(--mail-primary);
    font-weight: 500;
}

.mx-badge-primary {
    background: var(--mail-success);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Security Features */
.security-feature-box {
    background: white;
    border: 1px solid var(--mail-border);
    border-radius: var(--mail-radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.2s ease;
}

.security-feature-box:hover {
    border-color: var(--mail-primary);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15);
}

.security-feature-header {
    background: linear-gradient(135deg, var(--mail-bg) 0%, #f1f5f9 100%);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--mail-border);
}

.security-feature-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--mail-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.security-feature-content {
    padding: 1.5rem;
}

.feature-status {
    margin-bottom: 1rem;
    font-weight: 500;
}

.status-valid {
    color: var(--mail-success);
    font-weight: 600;
}

.status-invalid {
    color: var(--mail-error);
    font-weight: 600;
}

.feature-record {
    margin: 1rem 0;
}

.feature-record strong {
    color: var(--mail-text);
    display: block;
    margin-bottom: 0.5rem;
}

.record-content {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Courier New', Consolas, monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    overflow-x: auto;
    border-left: 4px solid var(--mail-primary);
}

.record-content code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-family: inherit;
}

/* DKIM Modal Button */
.dkim-modal-btn {
    background: var(--mail-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.dkim-modal-btn:hover {
    background: var(--mail-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(139, 92, 246, 0.3);
}

/* =============================================================================
   MODAL STYLES
   ============================================================================= */
.sysutils-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.sysutils-modal {
    background: white;
    border-radius: 12px;
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.3);
    animation: modalFadeIn 0.3s ease;
}

.sysutils-modal-header {
    background: linear-gradient(135deg, var(--mail-primary) 0%, var(--mail-hover) 100%);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sysutils-modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sysutils-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.sysutils-modal-body {
    padding: 2rem;
    max-height: 70vh;
    overflow-y: auto;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */
@media (max-width: 768px) {
    .sysutils-tool-content {
        padding: 1rem;
    }

    .sysutils-mail-complete-results {
        padding: 0.5rem;
    }

    .mail-section {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .sysutils-mail-main-info {
        padding: 1.5rem;
    }

    .mail-domain-display {
        font-size: 1.8rem;
    }

    .mx-record-item {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .security-feature-content {
        padding: 1rem;
    }

    .sysutils-modal {
        margin: 1rem;
        max-width: calc(100vw - 2rem);
    }

    .sysutils-modal-body {
        padding: 1rem;
    }
}

/* =============================================================================
   MTA-STS RECORD STYLES
   ============================================================================= */
.mta-sts-record-content {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Courier New', Consolas, monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    overflow-x: auto;
    border-left: 4px solid var(--mail-primary);
    margin: 0.5rem 0;
}

.mta-sts-record-item h6 {
    color: var(--mail-primary);
    margin: 0.5rem 0;
    font-weight: 600;
}

.mta-sts-policy h6 {
    color: var(--mail-primary);
    margin: 0.5rem 0;
    font-weight: 600;
}

.mta-sts-policy a {
    color: var(--mail-primary);
    text-decoration: none;
    font-weight: 500;
}

.mta-sts-policy a:hover {
    color: var(--mail-hover);
    text-decoration: underline;
}

/* =============================================================================
   MX ANALYSIS PORT STATUS STYLES
   ============================================================================= */
.mx-port-card {
    transition: all 0.2s ease;
    position: relative;
}

.mx-port-card.port-open {
    border-color: #28a745 !important;
    background: linear-gradient(135deg, #f8fff9 0%, white 100%) !important;
}

.mx-port-card.port-closed {
    border-color: #dc3545 !important;
    background: linear-gradient(135deg, #fff8f8 0%, white 100%) !important;
}

.mx-port-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.mx-port-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.85rem;
}

.mx-port-status.status-open {
    background: rgba(40, 167, 69, 0.1);
    color: #155724;
    border: 1px solid rgba(40, 167, 69, 0.2);
}

.mx-port-status.status-closed {
    background: rgba(220, 53, 69, 0.1);
    color: #721c24;
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.mx-port-icon {
    font-size: 1.1rem;
    font-weight: bold;
}

.mx-port-icon.icon-open {
    color: #28a745;
}

.mx-port-icon.icon-closed {
    color: #dc3545;
}