/* Sistema de Mailing IMCYC - Estilos CSS */

:root {
    --primary-blue: #0077A3;
    --light-gray: #B3ADA7;
    --white: #ffffff;
    --dark-gray: #333333;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light-bg: #f8f9fa;
    --border: #dee2e6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--light-bg);
}

/* Header */
.header {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--white);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-name {
    color: var(--light-gray);
}

.btn-logout {
    background-color: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.btn-logout:hover {
    background-color: rgba(255,255,255,0.3);
    text-decoration: none;
    color: var(--white);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.container-fluid {
    padding: 2rem 1rem;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    overflow: hidden;
}

.card-header {
    background-color: var(--light-gray);
    color: var(--white);
    padding: 1rem 1.5rem;
    font-weight: bold;
    border-bottom: 1px solid var(--border);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(0, 119, 163, 0.25);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-valid {
    border-color: var(--success);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    margin: 0.25rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background-color: #005f82;
    text-decoration: none;
    color: var(--white);
}

.btn-secondary {
    background-color: var(--light-gray);
    color: var(--dark-gray);
}

.btn-secondary:hover {
    background-color: #9a9490;
    text-decoration: none;
    color: var(--dark-gray);
}

.btn-success {
    background-color: var(--success);
    color: var(--white);
}

.btn-success:hover {
    background-color: #218838;
    color: var(--white);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background-color: #c82333;
    color: var(--white);
}

.btn-warning {
    background-color: var(--warning);
    color: var(--dark-gray);
}

.btn-warning:hover {
    background-color: #e0a800;
    color: var(--dark-gray);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 4px;
    position: relative;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background-color: var(--light-gray);
    color: var(--white);
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: rgba(0, 119, 163, 0.05);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,0.02);
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.5rem;
}

.col {
    flex: 1;
    padding: 0.5rem;
}

.col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0.5rem;
}

.col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0.5rem;
}

.col-md-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
    padding: 0.5rem;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--light-gray) 100%);
}

.login-card {
    max-width: 400px;
    width: 100%;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--light-gray);
}

/* Stats Cards */
.stats-card {
    text-align: center;
    padding: 2rem 1rem;
}

.stats-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stats-label {
    color: var(--light-gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Progress Bar */
.progress {
    height: 1rem;
    background-color: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-blue);
    transition: width 0.6s ease;
}

.progress-bar-success {
    background-color: var(--success);
}

.progress-bar-danger {
    background-color: var(--danger);
}

/* Navigation */
.nav-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.nav-tab {
    padding: 0.75rem 1rem;
    background-color: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    cursor: pointer;
    text-decoration: none;
    color: var(--dark-gray);
    margin-right: 0.25rem;
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
}

.nav-tab.active {
    background-color: var(--white);
    border-color: var(--border);
    border-bottom-color: var(--white);
    color: var(--primary-blue);
    font-weight: 600;
}

.nav-tab:hover:not(.active) {
    background-color: var(--light-bg);
    text-decoration: none;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    color: var(--primary-blue);
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light-gray);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .container {
        padding: 1rem;
    }
    
    .col-md-6,
    .col-md-4,
    .col-md-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .row {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin: 0.25rem 0;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Loading Spinner */
.spinner {
    border: 2px solid var(--border);
    border-top: 2px solid var(--primary-blue);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: 0.5rem;
}

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