/* ==========================================================================
   eReps Modern — Design System Foundation
   Version: 1.0

   This stylesheet establishes the evolved eReps visual language.
   It layers on top of Bootstrap 3 and the existing style.css.
   Apply via class="ereps-modern" on a containing element.

   Design Tokens → Layout → Components → Page-specific
   ========================================================================== */

/* --------------------------------------------------------------------------
   DESIGN TOKENS
   -------------------------------------------------------------------------- */

:root {
    /* Primary palette — evolved from existing #2c3e50 / #1d76b0 */
    --ereps-navy:        #2c3e50;
    --ereps-navy-light:  #34495e;
    --ereps-navy-dark:   #1a252f;
    --ereps-blue:        #1d76b0;
    --ereps-blue-light:  #2a8cc4;
    --ereps-blue-dark:   #165d8e;
    --ereps-teal:        #1abc9c;

    /* Neutrals */
    --ereps-gray-50:     #fafbfc;
    --ereps-gray-100:    #f4f6f8;
    --ereps-gray-200:    #e8ecf0;
    --ereps-gray-300:    #d1d8e0;
    --ereps-gray-400:    #a4b0be;
    --ereps-gray-500:    #7f8c9b;
    --ereps-gray-600:    #636e78;
    --ereps-gray-700:    #4a5568;
    --ereps-gray-800:    #2d3748;
    --ereps-gray-900:    #1a202c;

    /* Semantic */
    --ereps-text:        #2d3748;
    --ereps-text-secondary: #636e78;
    --ereps-text-muted:  #7f8c9b;
    --ereps-link:        #1d76b0;
    --ereps-link-hover:  #165d8e;
    --ereps-bg:          #ffffff;
    --ereps-bg-subtle:   #fafbfc;
    --ereps-border:      #e8ecf0;
    --ereps-border-light:#f4f6f8;

    /* Typography scale — pixel-based for predictability on Bootstrap 3 */
    --ereps-text-xs:     11px;
    --ereps-text-sm:     13px;
    --ereps-text-base:   14px;
    --ereps-text-md:     15px;
    --ereps-text-lg:     17px;
    --ereps-text-xl:     20px;
    --ereps-text-2xl:    24px;
    --ereps-text-3xl:    28px;
    --ereps-text-4xl:    32px;

    /* Spacing scale */
    --ereps-space-1:     4px;
    --ereps-space-2:     8px;
    --ereps-space-3:     12px;
    --ereps-space-4:     16px;
    --ereps-space-5:     20px;
    --ereps-space-6:     24px;
    --ereps-space-8:     32px;
    --ereps-space-10:    40px;
    --ereps-space-12:    48px;
    --ereps-space-16:    64px;

    /* Elevation */
    --ereps-shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.05);
    --ereps-shadow:      0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --ereps-shadow-md:   0 4px 6px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);

    /* Borders */
    --ereps-radius-sm:   3px;
    --ereps-radius:      4px;
    --ereps-radius-md:   6px;
    --ereps-radius-lg:   8px;

    /* Transitions */
    --ereps-transition:  150ms ease;
}


/* --------------------------------------------------------------------------
   BASE TYPOGRAPHY (scoped to .ereps-modern)
   -------------------------------------------------------------------------- */

.ereps-modern {
    color: var(--ereps-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.ereps-modern h1 {
    font-size: var(--ereps-text-3xl);
    font-weight: 600;
    color: var(--ereps-navy);
    letter-spacing: -0.01em;
    line-height: 1.25;
    margin: 0 0 var(--ereps-space-2) 0;
}

.ereps-modern h2 {
    font-size: var(--ereps-text-2xl);
    font-weight: 600;
    color: var(--ereps-navy);
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin: 0 0 var(--ereps-space-2) 0;
    border-bottom: none;
    padding-bottom: 0;
}

/* Reset the existing h2 blue underline within modern sections */
.ereps-modern h2 span {
    border-bottom: none;
}

.ereps-modern h3 {
    font-size: var(--ereps-text-xl);
    font-weight: 600;
    color: var(--ereps-navy);
    line-height: 1.35;
    margin: 0 0 var(--ereps-space-2) 0;
}

.ereps-modern h4 {
    font-size: var(--ereps-text-lg);
    font-weight: 600;
    color: var(--ereps-navy);
    line-height: 1.4;
    margin: 0 0 var(--ereps-space-2) 0;
}

.ereps-modern p {
    font-size: var(--ereps-text-md);
    line-height: 1.7;
    margin-bottom: 1.15em;
    color: var(--ereps-text);
}

.ereps-modern a {
    color: var(--ereps-link);
    text-decoration: none;
    transition: color var(--ereps-transition);
}

.ereps-modern a:hover {
    color: var(--ereps-link-hover);
    text-decoration: none;
}

.ereps-modern .lead {
    font-size: var(--ereps-text-lg);
    color: var(--ereps-text-secondary);
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: var(--ereps-space-6);
}


/* --------------------------------------------------------------------------
   LAYOUT
   -------------------------------------------------------------------------- */

.ereps-modern .support-wrap {
    margin-top: var(--ereps-space-10);
    margin-bottom: var(--ereps-space-16);
}


/* --------------------------------------------------------------------------
   PAGE HEADER
   -------------------------------------------------------------------------- */

.ereps-modern .page-header-section {
    margin-bottom: var(--ereps-space-8);
    padding-bottom: var(--ereps-space-6);
    border-bottom: 2px solid var(--ereps-border);
}

.ereps-modern .page-header-section h1 {
    margin-bottom: var(--ereps-space-2);
}

.ereps-modern .page-header-section .lead {
    margin-bottom: 0;
}


/* --------------------------------------------------------------------------
   ARTICLE CARDS (blog listing)
   -------------------------------------------------------------------------- */

.ereps-modern .article-card {
    background: var(--ereps-bg);
    border: 1px solid var(--ereps-border);
    border-radius: var(--ereps-radius-md);
    padding: var(--ereps-space-6);
    margin-bottom: var(--ereps-space-5);
    transition: border-color var(--ereps-transition), box-shadow var(--ereps-transition);
}

.ereps-modern .article-card:hover {
    border-color: var(--ereps-gray-300);
    box-shadow: var(--ereps-shadow);
}

.ereps-modern .article-card h2 {
    font-size: var(--ereps-text-xl);
    margin-bottom: var(--ereps-space-2);
}

.ereps-modern .article-card h2 a {
    color: var(--ereps-navy);
    transition: color var(--ereps-transition);
}

.ereps-modern .article-card h2 a:hover {
    color: var(--ereps-blue);
}

.ereps-modern .article-card .article-meta {
    font-size: var(--ereps-text-sm);
    color: var(--ereps-text-muted);
    margin-bottom: var(--ereps-space-3);
}

.ereps-modern .article-card .article-meta a {
    color: var(--ereps-text-secondary);
}

.ereps-modern .article-card .article-meta a:hover {
    color: var(--ereps-blue);
}

.ereps-modern .article-card .article-excerpt {
    font-size: var(--ereps-text-md);
    color: var(--ereps-text-secondary);
    line-height: 1.65;
    margin-bottom: var(--ereps-space-3);
}

.ereps-modern .article-card .read-more {
    font-size: var(--ereps-text-sm);
    font-weight: 600;
    color: var(--ereps-blue);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ereps-modern .article-card .read-more:hover {
    color: var(--ereps-blue-dark);
}


/* --------------------------------------------------------------------------
   ARTICLE DETAIL
   -------------------------------------------------------------------------- */

.ereps-modern .article-detail .article-header {
    margin-bottom: var(--ereps-space-8);
    padding-bottom: var(--ereps-space-6);
    border-bottom: 2px solid var(--ereps-border);
}

.ereps-modern .article-detail .article-header h1 {
    margin-bottom: var(--ereps-space-3);
}

.ereps-modern .article-detail .article-meta {
    font-size: var(--ereps-text-sm);
    color: var(--ereps-text-muted);
}

.ereps-modern .article-detail .article-meta a {
    color: var(--ereps-text-secondary);
}

.ereps-modern .article-detail .article-meta a:hover {
    color: var(--ereps-blue);
}

.ereps-modern .article-detail .blog-content {
    font-size: var(--ereps-text-lg);
}

.ereps-modern .article-detail .blog-content p {
    line-height: 1.8;
    margin-bottom: 1.3em;
}

.ereps-modern .article-detail .blog-content img,
.ereps-modern .page-content img {
    max-width: 100%;
    height: auto;
    display: block;
}

.ereps-modern .article-detail .blog-content h2 {
    font-size: var(--ereps-text-xl);
    margin-top: var(--ereps-space-8);
    margin-bottom: var(--ereps-space-4);
    padding-bottom: var(--ereps-space-2);
    border-bottom: 1px solid var(--ereps-border);
}

.ereps-modern .article-detail .blog-content h3 {
    font-size: var(--ereps-text-lg);
    margin-top: var(--ereps-space-6);
    margin-bottom: var(--ereps-space-3);
}

.ereps-modern .article-detail .blog-content ul,
.ereps-modern .article-detail .blog-content ol {
    margin-bottom: 1.25em;
    padding-left: var(--ereps-space-6);
}

.ereps-modern .article-detail .blog-content li {
    line-height: 1.75;
    margin-bottom: 0.5em;
}

.ereps-modern .article-detail .blog-content blockquote {
    border-left: 3px solid var(--ereps-blue);
    background: var(--ereps-gray-50);
    margin: var(--ereps-space-6) 0;
    padding: var(--ereps-space-4) var(--ereps-space-6);
    color: var(--ereps-text-secondary);
    font-style: italic;
}

.ereps-modern .article-detail .blog-content img {
    border-radius: var(--ereps-radius);
    margin: var(--ereps-space-4) 0;
}

.ereps-modern .article-detail .article-footer {
    margin-top: var(--ereps-space-10);
    padding-top: var(--ereps-space-5);
    border-top: 1px solid var(--ereps-border);
}

.ereps-modern .article-detail .article-footer a {
    font-size: var(--ereps-text-sm);
    font-weight: 600;
    color: var(--ereps-text-secondary);
}

.ereps-modern .article-detail .article-footer a:hover {
    color: var(--ereps-blue);
}


/* --------------------------------------------------------------------------
   SIDEBAR
   -------------------------------------------------------------------------- */

.ereps-modern .sidebar-card {
    background: var(--ereps-bg);
    border: 1px solid var(--ereps-border);
    border-radius: var(--ereps-radius-md);
    padding: 0;
    margin-bottom: var(--ereps-space-5);
    overflow: hidden;
}

.ereps-modern .sidebar-card .sidebar-heading {
    font-size: var(--ereps-text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ereps-text-muted);
    padding: var(--ereps-space-4) var(--ereps-space-5);
    margin: 0;
    border-bottom: 1px solid var(--ereps-border);
    background: var(--ereps-gray-50);
}

.ereps-modern .sidebar-card .sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ereps-modern .sidebar-card .sidebar-nav li {
    border-bottom: 1px solid var(--ereps-border-light);
}

.ereps-modern .sidebar-card .sidebar-nav li:last-child {
    border-bottom: none;
}

.ereps-modern .sidebar-card .sidebar-nav li a {
    display: block;
    padding: 10px var(--ereps-space-5);
    color: var(--ereps-text);
    font-size: var(--ereps-text-sm);
    font-weight: 400;
    transition: background-color var(--ereps-transition), color var(--ereps-transition);
}

.ereps-modern .sidebar-card .sidebar-nav li a:hover {
    background: var(--ereps-gray-50);
    color: var(--ereps-blue);
    text-decoration: none;
}

.ereps-modern .sidebar-card .sidebar-nav li.active a {
    color: var(--ereps-blue);
    font-weight: 600;
    background: var(--ereps-bg);
    border-left: 3px solid var(--ereps-blue);
    padding-left: calc(var(--ereps-space-5) - 3px);
}

.ereps-modern .sidebar-card .sidebar-nav li a .badge {
    background: var(--ereps-gray-200);
    color: var(--ereps-text-secondary);
    font-size: var(--ereps-text-sm);
    font-weight: 600;
    border-radius: 10px;
    padding: 2px 8px;
    float: right;
    margin-top: 0;
}


/* --------------------------------------------------------------------------
   CATEGORY PILLS (inline, for article meta)
   -------------------------------------------------------------------------- */

.ereps-modern .category-pill {
    display: inline-block;
    font-size: var(--ereps-text-xs);
    font-weight: 600;
    color: var(--ereps-text-secondary);
    background: var(--ereps-gray-100);
    border: 1px solid var(--ereps-border);
    border-radius: 3px;
    padding: 1px 8px;
    margin-right: 4px;
    transition: background-color var(--ereps-transition), color var(--ereps-transition);
    line-height: 1.6;
}

.ereps-modern .category-pill:hover {
    background: var(--ereps-gray-200);
    color: var(--ereps-blue);
    text-decoration: none;
}


/* --------------------------------------------------------------------------
   PAGE CONTENT (getting started, video tutorials, etc.)
   -------------------------------------------------------------------------- */

.ereps-modern .page-content {
    font-size: var(--ereps-text-lg);
}

.ereps-modern .page-content p {
    line-height: 1.8;
    margin-bottom: 1.3em;
}

.ereps-modern .page-content h2 {
    font-size: var(--ereps-text-xl);
    margin-top: var(--ereps-space-8);
    margin-bottom: var(--ereps-space-4);
    padding-bottom: var(--ereps-space-2);
    border-bottom: 1px solid var(--ereps-border);
}

.ereps-modern .page-content h3 {
    font-size: var(--ereps-text-lg);
    margin-top: var(--ereps-space-6);
    margin-bottom: var(--ereps-space-3);
}

.ereps-modern .page-content img {
    border-radius: var(--ereps-radius);
    margin: var(--ereps-space-4) 0;
}

.ereps-modern .page-content .video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin-bottom: var(--ereps-space-6);
    border-radius: var(--ereps-radius-md);
    border: 1px solid var(--ereps-border);
}

.ereps-modern .page-content .video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}


/* --------------------------------------------------------------------------
   CONTACT FORM
   -------------------------------------------------------------------------- */

.ereps-modern .form-group label {
    font-weight: 600;
    color: var(--ereps-text);
    font-size: var(--ereps-text-base);
    margin-bottom: var(--ereps-space-1);
}

.ereps-modern .form-control {
    border: 1px solid var(--ereps-gray-300);
    border-radius: var(--ereps-radius);
    padding: var(--ereps-space-2) var(--ereps-space-3);
    font-size: var(--ereps-text-base);
    color: var(--ereps-text);
    transition: border-color var(--ereps-transition), box-shadow var(--ereps-transition);
    box-shadow: none;
}

.ereps-modern .form-control:focus {
    border-color: var(--ereps-blue-light);
    box-shadow: 0 0 0 3px rgba(29, 118, 176, 0.1);
    outline: none;
}

.ereps-modern .btn-primary {
    background-color: var(--ereps-blue);
    border: none;
    border-radius: var(--ereps-radius);
    padding: var(--ereps-space-2) var(--ereps-space-6);
    font-size: var(--ereps-text-base);
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: background-color var(--ereps-transition), box-shadow var(--ereps-transition);
}

.ereps-modern .btn-primary:hover,
.ereps-modern .btn-primary:focus {
    background-color: var(--ereps-blue-dark);
    box-shadow: var(--ereps-shadow-sm);
}


/* --------------------------------------------------------------------------
   CATEGORY HEADER (for /support/category/*)
   -------------------------------------------------------------------------- */

.ereps-modern .category-header {
    margin-bottom: var(--ereps-space-8);
    padding-bottom: var(--ereps-space-6);
    border-bottom: 2px solid var(--ereps-border);
}

.ereps-modern .category-header .category-label {
    font-size: var(--ereps-text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ereps-text-muted);
    margin-bottom: var(--ereps-space-1);
}


/* --------------------------------------------------------------------------
   BACK LINK
   -------------------------------------------------------------------------- */

.ereps-modern .back-link {
    font-size: var(--ereps-text-sm);
    font-weight: 600;
    color: var(--ereps-text-secondary);
}

.ereps-modern .back-link:hover {
    color: var(--ereps-blue);
}


/* --------------------------------------------------------------------------
   ALERT OVERRIDES (for contact form success/error)
   -------------------------------------------------------------------------- */

.ereps-modern .alert-success {
    background-color: #f0faf4;
    border: 1px solid #c6f0d5;
    color: #1e6b3a;
    border-radius: var(--ereps-radius-md);
}

.ereps-modern .alert-danger {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    border-radius: var(--ereps-radius-md);
}


/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */

@media (max-width: 991px) {
    .ereps-modern .support-wrap {
        margin-top: var(--ereps-space-6);
        margin-bottom: var(--ereps-space-10);
    }

    .ereps-modern h1 {
        font-size: var(--ereps-text-2xl);
    }

    .ereps-modern .article-card {
        padding: var(--ereps-space-5);
    }
}

@media (max-width: 767px) {
    .ereps-modern .article-card h2 {
        font-size: var(--ereps-text-lg);
    }

    .ereps-modern .sidebar-card {
        margin-top: var(--ereps-space-8);
    }
}