/* ================================================================
   TRIMOLOGY BLOG - MASTER STYLESHEET
   Author: Trimology Blog Team
   Version: 1.0
   
   TABLE OF CONTENTS:
   1. CSS Variables (Brand Colors - UPDATE HERE)
   2. Global Reset & Base
   3. Typography
   4. Header & Navigation
   5. Hero Section
   6. Trust Bar
   7. Article Cards
   8. Featured Article
   9. Knowledge Hub
   10. Sidebar
   11. Footer
   12. Badges
   13. Utilities
   14. Animations
   15. Responsive / Media Queries
================================================================ */


/* ================================================================
   1. CSS VARIABLES — UPDATE BRAND COLORS HERE ONLY
================================================================ */
:root {
    /* Brand Colors - UPDATE: Change these to rebrand entire site */
    --color-primary:        #1a6b3c;   /* Deep Green - Main brand color */
    --color-primary-dark:   #145530;   /* Darker green - hover states */
    --color-primary-light:  #e8f5ee;   /* Light green - backgrounds */
    --color-accent:         #f5a623;   /* Warm amber - CTA buttons */
    --color-accent-dark:    #e09415;   /* Darker amber - CTA hover */
    --color-white:          #ffffff;
    --color-dark:           #1a1a1a;
    --color-text:           #333333;
    --color-text-muted:     #6c757d;
    --color-bg-light:       #f8f9fa;
    --color-border:         #e9ecef;
    --color-success:        #28a745;
    --color-trust:          #fff3cd;
    --color-trust-border:   #ffc107;

    /* Typography - UPDATE: Change font sizes globally here */
    --font-family-base:     'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base:       16px;
    --font-size-sm:         14px;
    --font-size-xs:         11px;
    --line-height-base:     1.7;

    /* Spacing */
    --border-radius-card:   16px;
    --border-radius-btn:    50px;
    --shadow-card:          0 4px 20px rgba(0, 0, 0, 0.07);
    --shadow-card-hover:    0 12px 30px rgba(0, 0, 0, 0.13);
    --transition-base:      all 0.3s ease;

    /* Header */
    --header-height:        72px;
}


/* ================================================================
   2. GLOBAL RESET & BASE
================================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family-base);
    color: var(--color-text);
    background-color: var(--color-bg-light);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    transition: var(--transition-base);
}

/* Remove default heading backgrounds (Bootstrap override) */
h1, h2, h3, h4, h5, h6 {
    background: none !important;
    color: #ffffff;
}


/* ================================================================
   3. TYPOGRAPHY
================================================================ */
.hero-eyebrow {
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0.85;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    max-width: 680px;
    margin: 0 auto;
}

.section-heading {
    font-size: 1.5rem;
    color: var(--color-dark);
    border-bottom: 3px solid var(--color-primary);
    padding-bottom: 0.75rem;
}

.article-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    line-height: 1.3;
    color: var(--color-dark);
}

.article-card-title {
    font-size: 1rem;
    line-height: 1.4;
    color: var(--color-dark);
}

.article-excerpt {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.article-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.x-small {
    font-size: var(--font-size-xs) !important;
}


/* ================================================================
   4. HEADER & NAVIGATION
================================================================ */
.site-header {
    height: var(--header-height);
    z-index: 1030;
    border-bottom: 3px solid var(--color-primary);
}

/* Logo Text */
/* UPDATE: Logo font size here */
.site-logo-text {
    font-size: 26px;
    color: var(--color-primary) !important;
    letter-spacing: -0.5px;
}

/* Desktop Nav Links */
.nav-link-custom {
    color: var(--color-dark);
    font-weight: 700;
    text-decoration: none;
    font-size: var(--font-size-sm);
    letter-spacing: 0.3px;
    padding-bottom: 3px;
    border-bottom: 2px solid transparent;
    transition: var(--transition-base);
}

.nav-link-custom:hover,
.nav-link-custom.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* CTA Button in Nav */
.btn-cta {
    background-color: var(--color-accent);
    color: var(--color-dark);
    border: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

.btn-cta:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(245, 166, 35, 0.4);
}

/* Mobile Nav Menu */
.mobile-nav-menu {
    border-top: 1px solid var(--color-border);
}

.mobile-nav-link {
    display: block;
    padding: 12px 0;
    color: var(--color-dark);
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-primary);
    padding-left: 8px;
}


/* ================================================================
   5. HERO SECTION
================================================================ */
.hero-section {
    /* UPDATE: Change gradient colors here for seasonal campaigns */
    background: linear-gradient(135deg, #1a6b3c 0%, #0f4a29 50%, #072e19 100%);
    padding: 80px 20px;
    position: relative;
    overflow: hidden;
}

/* Subtle background pattern */
.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    pointer-events: none;
}


/* ================================================================
   6. TRUST BAR
================================================================ */
.trust-bar {
    background-color: var(--color-white);
}

.trust-badge {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}


/* ================================================================
   7. ARTICLE CARDS
================================================================ */
.article-card {
    border-radius: var(--border-radius-card) !important;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    background-color: var(--color-white);
    overflow: hidden;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

/* Trust Article Card - Highlighted */
.article-card-trust {
    border: 2px solid var(--color-trust-border) !important;
    background-color: var(--color-trust) !important;
}

/* Blog Card Image (grid cards) */
.blog-card-img {
    height: 220px;
    object-fit: cover;
    width: 100%;
}

/* Featured Article Image */
.featured-img {
    height: 400px;
    object-fit: cover;
    width: 100%;
}

.read-more-link {
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition-base);
}

.read-more-link:hover {
    color: var(--color-primary-dark);
    gap: 8px;
}

/* Primary Button (Read Full Article) */
.btn-primary-custom {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 12px 28px;
    font-weight: 700;
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius-btn);
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary-custom:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 107, 60, 0.35);
}


/* ================================================================
   8. KNOWLEDGE HUB
================================================================ */
.knowledge-hub {
    border: 1px solid var(--color-border);
}

.hub-item:last-child {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    border-bottom: none !important;
}

.hub-link {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-base);
}

.hub-link:hover {
    color: var(--color-primary);
    padding-left: 6px;
}


/* ================================================================
   9. SIDEBAR
================================================================ */

/* Sticky Sidebar - UPDATE top value if header height changes */
.sticky-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 16px);
}

/* Product CTA Card */
.sidebar-product-card {
    border: 2px solid var(--color-primary-light) !important;
}

.sidebar-recommended-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Star Rating */
.star-rating {
    color: var(--color-accent);
    font-size: var(--font-size-sm);
}

/* Sidebar CTA Button */
.btn-cta-sidebar {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-dark);
    border: none;
    font-size: 0.95rem;
    transition: var(--transition-base);
}

.btn-cta-sidebar:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(245, 166, 35, 0.45);
    color: var(--color-dark);
}

.sidebar-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Category Links */
.category-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.category-link:hover {
    color: var(--color-primary);
}

/* Guarantee Card */
/* UPDATE: Change gradient for seasonal design */
.guarantee-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

/* Quick Facts List */
.quick-facts-list li {
    padding: 6px 0;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.quick-facts-list li:last-child {
    border-bottom: none;
}


/* ================================================================
   10. BADGES
================================================================ */

/* Base badge style */
.badge {
    font-size: 11px;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 50px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* UPDATE: Add new badge colors here as needed */
.badge-featured {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.badge-science {
    background-color: #198754;
    color: var(--color-white);
}

.badge-lifestyle {
    background-color: #0dcaf0;
    color: var(--color-dark);
}

.badge-comparison {
    background-color: #ffc107;
    color: var(--color-dark);
}

.badge-trust {
    background-color: #dc3545;
    color: var(--color-white);
}

.badge-senior {
    background-color: #6f42c1;
    color: var(--color-white);
}

.badge-tips {
    background-color: #343a40;
    color: var(--color-white);
}


/* ================================================================
   11. FOOTER
================================================================ */
.site-footer {
    border-top-color: var(--color-primary) !important;
    border-top-width: 4px !important;
}

.footer-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 700;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary);
}

.footer-disclaimer {
    max-width: 760px;
    margin: 0 auto;
}

.footer-disclaimer p {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 6px;
}


/* ================================================================
   12. ANIMATIONS
================================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    animation: fadeInUp 0.4s ease both;
}

/* Stagger animation for grid cards */
.row .col-md-6:nth-child(1) .article-card { animation-delay: 0.05s; }
.row .col-md-6:nth-child(2) .article-card { animation-delay: 0.10s; }
.row .col-md-6:nth-child(3) .article-card { animation-delay: 0.15s; }
.row .col-md-6:nth-child(4) .article-card { animation-delay: 0.20s; }
.row .col-md-6:nth-child(5) .article-card { animation-delay: 0.25s; }
.row .col-md-6:nth-child(6) .article-card { animation-delay: 0.30s; }


/* ================================================================
   13. RESPONSIVE / MEDIA QUERIES
================================================================ */

/* Tablet */
@media (max-width: 991px) {
    .sticky-sidebar {
        position: static;
    }

    .featured-img {
        height: 280px;
    }

    .hero-section {
        padding: 60px 16px;
    }
}

/* Mobile */
@media (max-width: 767px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .featured-img {
        height: 220px;
    }

    .blog-card-img {
        height: 180px;
    }

    .site-header {
        height: auto;
        min-height: var(--header-height);
    }

    .trust-badge {
        font-size: 12px;
    }

    .knowledge-hub {
        padding: 1.25rem !important;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-section {
        padding: 40px 12px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .article-title {
        font-size: 1.3rem;
    }
}