/* ==========================================================================
   Preventative Wellness - Evidence-Based Health & Longevity Journal Stylesheet
   Modern, SEO-friendly, Responsive, Light & Dark Theme Design
   ========================================================================== */

:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Light Mode Variables */
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-nav: rgba(255, 255, 255, 0.95);
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --brand-primary: #059669;
    --brand-primary-hover: #047857;
    --brand-accent: #0d9488;
    --brand-soft: #ecfdf5;
    --brand-soft-text: #065f46;
    --ticker-bg: #064e3b;
    --ticker-text: #d1fae5;
    --hero-gradient: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 40%, #f8fafc 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 12px 20px -3px rgba(5, 150, 105, 0.12), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] {
    /* Dark Mode Variables */
    --bg-page: #090e17;
    --bg-card: #111927;
    --bg-nav: rgba(17, 25, 39, 0.95);
    --border-color: #1e293b;
    --border-light: #162032;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --brand-primary: #10b981;
    --brand-primary-hover: #34d399;
    --brand-accent: #2dd4bf;
    --brand-soft: rgba(16, 185, 129, 0.12);
    --brand-soft-text: #6ee7b7;
    --ticker-bg: #03140e;
    --ticker-text: #a7f3d0;
    --hero-gradient: linear-gradient(135deg, #0d1a24 0%, #09131a 50%, #090e17 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 12px 22px -3px rgba(16, 185, 129, 0.15);
}

/* Base Elements */
body {
    font-family: var(--font-sans);
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.25s ease, color 0.25s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
}

/* Reading Progress Bar */
#reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    z-index: 1060;
    transition: width 0.1s ease-out;
}

/* Health Metrics Ticker Bar */
.health-ticker-bar {
    background: var(--ticker-bg);
    color: var(--ticker-text);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.health-ticker-bar .badge {
    font-size: 0.72rem;
    padding: 0.25em 0.6em;
}

/* Navbar */
.navbar {
    background-color: var(--bg-nav) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1030;
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

.brand-icon-wrap {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(5, 150, 105, 0.25);
}

.brand-logo-img {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    box-shadow: 0 4px 10px rgba(5, 150, 105, 0.25);
    transition: transform 0.2s ease;
}

.navbar-brand:hover .brand-logo-img {
    transform: scale(1.06);
}

.navbar-brand .brand-title {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.navbar-brand .brand-title span {
    color: var(--brand-primary);
}

.nav-link {
    font-weight: 500;
    font-size: 0.93rem;
    color: var(--text-secondary) !important;
    transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--brand-primary) !important;
}

/* Hero Section */
.hero-section {
    background: var(--hero-gradient);
    border-bottom: 1px solid var(--border-color);
    padding: 4.5rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
    z-index: 0;
}

/* Cards & Articles */
.blog-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color) !important;
    border-radius: 1.2rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(16, 185, 129, 0.35) !important;
}

.blog-title-link {
    color: var(--text-primary);
    transition: color 0.15s ease;
    line-height: 1.35;
}

.blog-title-link:hover {
    color: var(--brand-primary) !important;
}

/* Badges & Pills */
.badge-wellness {
    background-color: var(--brand-soft);
    color: var(--brand-soft-text);
    border: 1px solid rgba(16, 185, 129, 0.25);
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    border-radius: 50rem;
}

.category-pill-btn {
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 0.45rem 1rem;
    border-radius: 50rem;
    transition: all 0.2s ease;
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
}

.category-pill-btn:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.category-pill-btn.active {
    background-color: var(--brand-primary);
    color: #ffffff;
    border-color: var(--brand-primary);
    box-shadow: 0 4px 10px rgba(5, 150, 105, 0.25);
}

.category-pill-btn .pill-count {
    opacity: 0.85;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

/* Article Detail Styles */
.blog-article {
    font-size: 1.08rem;
    color: var(--text-primary);
}

.blog-article p {
    margin-bottom: 1.45rem;
    line-height: 1.8;
}

.article-header h1 {
    line-height: 1.25;
}

.key-takeaways-card {
    background: var(--brand-soft);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.clinical-note-box {
    background-color: var(--bg-card);
    border-left: 4px solid var(--brand-primary);
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0 0.85rem 0.85rem 0;
    padding: 1.25rem 1.5rem;
    margin: 1.75rem 0;
}

.table-wellness {
    width: 100%;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
}

.table-wellness th {
    background-color: var(--brand-soft);
    color: var(--brand-soft-text);
    padding: 0.85rem 1rem;
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border-color);
}

.table-wellness td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    vertical-align: top;
}

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

/* Sidebar Widgets */
.sidebar-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1.2rem;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Footer */
footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.medical-disclaimer-box {
    background-color: rgba(239, 68, 68, 0.05);
    border: 1px dashed rgba(239, 68, 68, 0.3);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* Buttons */
.btn-wellness-primary {
    background-color: var(--brand-primary);
    color: #ffffff;
    border: none;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.15s ease;
}

.btn-wellness-primary:hover {
    background-color: var(--brand-primary-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

/* Line clamps */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Transitions */
.transition-all {
    transition: all 0.25s ease;
}

/* Stock Blog Image Card Styling */
.blog-card-img-link img {
  transition: transform 0.3s ease;
}
.blog-card:hover .blog-card-img-link img {
  transform: scale(1.05);
}