/**
 * Trung Tâm Gia Sư Thành Công
 * Clean, Professional CSS Design System
 * Version: 3.0.0
 */

/* ============================================= */
/* 1. CSS VARIABLES - Design Tokens             */
/* ============================================= */
:root {
    /* Primary Colors */
    --tc-primary: #1a365d;
    --tc-primary-light: #2c5282;
    --tc-primary-dark: #0d1b2a;
    
    /* Secondary Colors */
    --tc-secondary: #e53e3e;
    --tc-secondary-light: #fc8181;
    --tc-secondary-dark: #c53030;
    
    /* Accent Colors */
    --tc-accent: #f6ad55;
    --tc-accent-light: #fbd38d;
    
    /* Neutral Colors */
    --tc-white: #ffffff;
    --tc-gray-50: #f7fafc;
    --tc-gray-100: #edf2f7;
    --tc-gray-200: #e2e8f0;
    --tc-gray-300: #cbd5e0;
    --tc-gray-400: #a0aec0;
    --tc-gray-500: #718096;
    --tc-gray-600: #4a5568;
    --tc-gray-700: #2d3748;
    --tc-gray-800: #1a202c;
    --tc-gray-900: #171923;
    
    /* Typography */
    --tc-font-main: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --tc-font-heading: 'Montserrat', 'Be Vietnam Pro', sans-serif;
    
    /* Spacing */
    --tc-space-xs: 0.25rem;
    --tc-space-sm: 0.5rem;
    --tc-space-md: 1rem;
    --tc-space-lg: 1.5rem;
    --tc-space-xl: 2rem;
    --tc-space-2xl: 3rem;
    --tc-space-3xl: 4rem;
    
    /* Border Radius */
    --tc-radius-sm: 4px;
    --tc-radius-md: 8px;
    --tc-radius-lg: 16px;
    --tc-radius-xl: 24px;
    --tc-radius-full: 50%;
    
    /* Shadows */
    --tc-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --tc-shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --tc-shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --tc-shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    
    /* Container */
    --tc-container: 1200px;
}

/* ============================================= */
/* 2. BASE STYLES                                */
/* ============================================= */
body {
    font-family: var(--tc-font-main);
    color: var(--tc-gray-700);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--tc-font-heading);
    color: var(--tc-primary);
    font-weight: 700;
    line-height: 1.3;
}

a {
    color: var(--tc-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--tc-secondary-dark);
}

/* Container */
.tc-container {
    max-width: var(--tc-container);
    margin: 0 auto;
    padding: 0 var(--tc-space-lg);
}

/* ============================================= */
/* 3. HEADER STYLES                              */
/* ============================================= */

/* Top Bar */
.header-top {
    background: var(--tc-secondary) !important;
    padding: 8px 0 !important;
}

.header-top,
.header-top a,
.header-top span {
    color: var(--tc-white) !important;
    font-size: 0.9rem !important;
}

/* Main Header */
.header-main {
    background: linear-gradient(135deg, #4a90d9 0%, #2c5282 40%, #1a365d 100%) !important;
    padding: 0 !important;
}

/* Logo */
.header-main .logo img,
.logo img {
    max-height: 100px !important;
    height: auto !important;
    padding: 15px 0 !important;
}

/* Navigation */
.header-main .nav > li > a,
.header-nav .nav > li > a {
    color: var(--tc-white) !important;
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    padding: 15px 18px !important;
    transition: all 0.3s ease !important;
}

.header-main .nav > li > a:hover,
.header-main .nav > li.current-menu-item > a {
    color: var(--tc-accent) !important;
}

/* Header Contact */
.header-main .header-contact-wrapper,
.header-main .flex-col span,
.header-main .flex-col p {
    color: var(--tc-white) !important;
}

.header-main a[href^="tel:"] {
    color: var(--tc-accent) !important;
    font-weight: 700 !important;
    font-size: 1.1rem !important;
}

/* Dropdown */
.nav-dropdown {
    background: var(--tc-white) !important;
    border-top: 3px solid var(--tc-secondary) !important;
    box-shadow: var(--tc-shadow-lg) !important;
}

.nav-dropdown a {
    color: var(--tc-gray-700) !important;
    padding: 12px 20px !important;
}

.nav-dropdown a:hover {
    color: var(--tc-secondary) !important;
    background: var(--tc-gray-50) !important;
}

/* ============================================= */
/* 4. HERO SECTION                               */
/* ============================================= */
.tc-hero-banner {
    background: linear-gradient(135deg, #1a365d 0%, #2c5282 50%, #1a365d 100%);
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 80px 20px;
    text-align: center;
}

.tc-hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: 1;
}

.tc-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.tc-hero-logo {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.tc-hero-logo .tc-logo-thanh {
    color: #ffffff !important;
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--tc-font-heading);
    letter-spacing: 6px;
    text-shadow: 0 0 40px rgba(255,255,255,0.5), 2px 2px 4px rgba(0,0,0,0.3);
}

.tc-hero-logo .tc-logo-cong {
    color: #f6ad55 !important;
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--tc-font-heading);
    letter-spacing: 6px;
    text-shadow: 0 0 40px rgba(246,173,85,0.5), 2px 2px 4px rgba(0,0,0,0.3);
}

.tc-hero-title {
    color: var(--tc-white) !important;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.tc-hero-title span {
    color: var(--tc-accent) !important;
    display: block;
    font-size: 2.8rem;
}

.tc-hero-subtitle {
    color: rgba(255,255,255,0.9) !important;
    font-size: 1.2rem;
    margin-bottom: 40px;
}

/* Hero CTA Buttons */
.tc-hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.tc-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--tc-radius-lg);
    text-decoration: none;
    transition: all 0.3s ease;
}

.tc-btn-primary {
    background: var(--tc-secondary);
    color: var(--tc-white) !important;
    box-shadow: 0 4px 15px rgba(229,62,62,0.4);
}

.tc-btn-primary:hover {
    background: var(--tc-secondary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(229,62,62,0.5);
    color: var(--tc-white) !important;
}

.tc-btn-secondary {
    background: transparent;
    color: var(--tc-white) !important;
    border: 2px solid var(--tc-white);
}

.tc-btn-secondary:hover {
    background: var(--tc-white);
    color: var(--tc-primary) !important;
}

/* Hero Stats */
.tc-hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.tc-stat {
    text-align: center;
    color: var(--tc-white);
}

.tc-stat i {
    font-size: 1.5rem;
    color: var(--tc-accent);
    margin-bottom: 10px;
    display: block;
}

.tc-stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--tc-accent) !important;
}

.tc-stat-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
}

/* ============================================= */
/* 5. SECTION STYLES                             */
/* ============================================= */
.tc-section {
    padding: 80px 0;
}

.tc-section-light {
    background: var(--tc-white);
}

.tc-section-gray {
    background: var(--tc-gray-50);
}

.tc-section-dark {
    background: linear-gradient(135deg, var(--tc-primary) 0%, var(--tc-primary-dark) 100%);
}

.tc-section-title {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    padding: 0 20px;
}

.tc-section-title h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--tc-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.tc-section-title h2 i {
    color: var(--tc-secondary);
}

.tc-section-title p {
    color: var(--tc-gray-500);
    font-size: 1.05rem;
}

/* Dark section title */
.tc-section-dark .tc-section-title h2,
.tc-section-contact .tc-section-title h2 {
    color: var(--tc-white) !important;
}

.tc-section-dark .tc-section-title p,
.tc-section-contact .tc-section-title p {
    color: rgba(255,255,255,0.8) !important;
}

/* ============================================= */
/* 6. SERVICE CARDS                              */
/* ============================================= */
.tc-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: var(--tc-container);
    margin: 0 auto;
    padding: 0 20px;
}

.tc-service-card {
    background: var(--tc-white);
    border-radius: var(--tc-radius-lg);
    padding: 35px 30px;
    text-align: center;
    box-shadow: var(--tc-shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--tc-gray-100);
    position: relative;
    overflow: hidden;
}

.tc-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-color, var(--tc-secondary));
}

.tc-service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--tc-shadow-xl);
}

.tc-service-number {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 3rem;
    font-weight: 800;
    color: var(--tc-gray-100);
    font-family: var(--tc-font-heading);
}

.tc-service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--card-color, var(--tc-primary)) 0%, var(--tc-primary-dark) 100%);
    border-radius: var(--tc-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--tc-white);
}

.tc-service-title {
    font-size: 1.2rem;
    color: var(--tc-primary) !important;
    margin-bottom: 12px;
}

.tc-service-desc {
    color: var(--tc-gray-500) !important;
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.tc-service-link {
    color: var(--tc-secondary) !important;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tc-service-link:hover {
    color: var(--tc-secondary-dark) !important;
}

.tc-service-link i {
    transition: transform 0.3s ease;
}

.tc-service-link:hover i {
    transform: translateX(5px);
}

/* ============================================= */
/* 7. CONTACT SECTION                            */
/* ============================================= */
.tc-contact-section {
    padding: 80px 0;
}

.tc-section-contact {
    background: linear-gradient(135deg, var(--tc-primary) 0%, var(--tc-primary-dark) 100%);
    padding: 80px 0;
}

.tc-contact-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: var(--tc-container);
    margin: 0 auto;
    padding: 0 30px;
}

.tc-contact-item {
    background: var(--tc-white);
    border-radius: var(--tc-radius-lg);
    padding: 30px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    box-shadow: var(--tc-shadow-lg);
    transition: all 0.3s ease;
}

.tc-contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--tc-shadow-xl);
}

.tc-contact-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    border-radius: var(--tc-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--tc-white);
    background: linear-gradient(135deg, #4299e1, #2b6cb0);
}

.tc-contact-icon.tc-icon-phone {
    background: linear-gradient(135deg, var(--tc-secondary), var(--tc-secondary-dark));
}

.tc-contact-icon.tc-icon-clock {
    background: linear-gradient(135deg, #48bb78, #2f855a);
}

.tc-contact-info {
    flex: 1;
}

.tc-contact-info h4 {
    color: var(--tc-primary) !important;
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.tc-contact-info p {
    color: var(--tc-gray-600) !important;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.tc-contact-info a {
    color: var(--tc-secondary) !important;
    font-size: 1.4rem;
    font-weight: 700;
}

.tc-contact-info a:hover {
    color: var(--tc-secondary-dark) !important;
}

/* Highlight card */
.tc-contact-highlight {
    border: 2px solid var(--tc-secondary);
    background: linear-gradient(135deg, #fff5f5, #fff);
}

/* ============================================= */
/* 8. POSTS SECTION                              */
/* ============================================= */
.tc-posts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    max-width: var(--tc-container);
    margin: 0 auto;
    padding: 0 20px;
}

.tc-post-card {
    background: var(--tc-white);
    border-radius: var(--tc-radius-lg);
    overflow: hidden;
    box-shadow: var(--tc-shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--tc-gray-100);
}

.tc-post-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--tc-shadow-xl);
}

.tc-post-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.tc-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tc-post-card:hover .tc-post-image img {
    transform: scale(1.1);
}

.tc-post-content {
    padding: 20px;
}

.tc-post-meta {
    font-size: 0.8rem;
    color: var(--tc-gray-400) !important;
    margin-bottom: 10px;
    display: flex;
    gap: 15px;
}

.tc-post-title {
    margin-bottom: 10px;
}

.tc-post-title a {
    color: var(--tc-primary) !important;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tc-post-title a:hover {
    color: var(--tc-secondary) !important;
}

.tc-post-excerpt {
    color: var(--tc-gray-500) !important;
    font-size: 0.9rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================= */
/* 9. FOOTER                                     */
/* ============================================= */
footer.tc-custom-footer {
    background: linear-gradient(180deg, var(--tc-primary) 0%, var(--tc-primary-dark) 100%);
}

.tc-footer-main {
    padding: 60px 0 40px;
}

.tc-footer-main .container {
    max-width: var(--tc-container);
    margin: 0 auto;
    padding: 0 30px;
}

.tc-footer-main .row#tc-footer-row {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.tc-footer-col {
    color: var(--tc-white);
}

/* Footer Logo */
.tc-footer-logo {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.tc-footer-logo .tc-logo-thanh {
    background: var(--tc-white);
    color: var(--tc-primary);
    padding: 8px 14px;
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--tc-radius-sm);
}

.tc-footer-logo .tc-logo-cong {
    background: var(--tc-secondary);
    color: var(--tc-white);
    padding: 8px 14px;
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--tc-radius-sm);
}

.tc-footer-tagline {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.tc-footer-social {
    display: flex;
    gap: 10px;
}

.tc-footer-social a {
    width: 40px;
    height: 40px;
    border-radius: var(--tc-radius-full);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--tc-white);
    transition: all 0.3s ease;
}

.tc-footer-social a:hover {
    background: var(--tc-secondary);
    border-color: var(--tc-secondary);
    transform: translateY(-3px);
}

/* Footer Titles */
.tc-footer-title {
    color: var(--tc-white);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--tc-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tc-footer-title i {
    color: var(--tc-secondary);
}

/* Footer Menus */
.tc-footer-menu,
.tc-footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tc-footer-menu li,
.tc-footer-contact li {
    margin-bottom: 12px;
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.tc-footer-menu li i,
.tc-footer-contact li i {
    color: var(--tc-secondary);
    margin-top: 4px;
}

.tc-footer-menu li a {
    color: rgba(255,255,255,0.8);
    transition: all 0.3s ease;
}

.tc-footer-menu li a:hover {
    color: var(--tc-white);
    padding-left: 5px;
}

.tc-footer-contact li a {
    color: var(--tc-secondary);
    font-weight: 600;
}

/* Footer Bottom */
.tc-footer-bottom {
    background: rgba(0,0,0,0.2);
    padding: 20px 0;
    text-align: center;
}

.tc-footer-bottom p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin: 0;
}

.tc-footer-bottom a {
    color: var(--tc-secondary);
}

/* ============================================= */
/* 10. FLOATING CTA                              */
/* ============================================= */
.tc-floating-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tc-floating-cta a {
    width: 56px;
    height: 56px;
    border-radius: var(--tc-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--tc-white);
    box-shadow: var(--tc-shadow-lg);
    transition: all 0.3s ease;
    position: relative;
}

.tc-floating-cta a:hover {
    transform: scale(1.1);
}

.tc-float-phone {
    background: linear-gradient(135deg, #48bb78, #2f855a);
    animation: pulse-green 2s infinite;
}

.tc-float-zalo {
    background: linear-gradient(135deg, #0068ff, #0052cc);
}

.tc-float-register {
    background: linear-gradient(135deg, var(--tc-secondary), var(--tc-secondary-dark));
}

.tc-float-label {
    position: absolute;
    right: 70px;
    background: var(--tc-gray-800);
    color: var(--tc-white);
    padding: 6px 12px;
    border-radius: var(--tc-radius-sm);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.tc-floating-cta a:hover .tc-float-label {
    opacity: 1;
    visibility: visible;
}

.tc-zalo-icon {
    font-weight: 700;
    font-size: 0.9rem;
}

@keyframes pulse-green {
    0%, 100% { box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(72, 187, 120, 0.7); }
}

/* ============================================= */
/* 11. PAGE STYLES                               */
/* ============================================= */

/* Page Headers */
.page-title h1,
.entry-title {
    color: var(--tc-primary) !important;
}

.page-content p,
.entry-content p {
    color: var(--tc-gray-600);
}

/* Breadcrumbs */
.breadcrumbs a {
    color: var(--tc-gray-500);
}

.breadcrumbs a:hover {
    color: var(--tc-secondary);
}

/* Blog Posts */
article.post .entry-title a {
    color: var(--tc-primary) !important;
}

article.post .entry-title a:hover {
    color: var(--tc-secondary) !important;
}

article.post .entry-summary {
    color: var(--tc-gray-600);
}

/* Sidebar */
.sidebar .widget-title {
    color: var(--tc-primary);
    font-weight: 600;
}

.sidebar a {
    color: var(--tc-gray-600);
}

.sidebar a:hover {
    color: var(--tc-secondary);
}

/* ============================================= */
/* 12. RESPONSIVE                                */
/* ============================================= */
@media (max-width: 1200px) {
    .tc-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tc-posts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991px) {
    .tc-hero-logo .tc-logo-thanh,
    .tc-hero-logo .tc-logo-cong {
        font-size: 2.5rem;
    }
    
    .tc-hero-title {
        font-size: 2rem;
    }
    
    .tc-hero-title span {
        font-size: 2.2rem;
    }
    
    .tc-contact-box {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .tc-footer-main .row#tc-footer-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 30px;
    }
    
    .tc-posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .tc-hero-banner {
        min-height: 70vh;
        padding: 60px 20px;
    }
    
    .tc-hero-logo .tc-logo-thanh,
    .tc-hero-logo .tc-logo-cong {
        font-size: 2rem;
        letter-spacing: 4px;
    }
    
    .tc-hero-title {
        font-size: 1.6rem;
    }
    
    .tc-hero-title span {
        font-size: 1.8rem;
    }
    
    .tc-hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .tc-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .tc-hero-stats {
        gap: 30px;
    }
    
    .tc-section {
        padding: 50px 0;
    }
    
    .tc-section-title h2 {
        font-size: 1.6rem;
    }
    
    .tc-services-grid {
        grid-template-columns: 1fr;
    }
    
    .tc-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .tc-footer-main .row#tc-footer-row {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .tc-footer-logo {
        justify-content: center;
    }
    
    .tc-footer-social {
        justify-content: center;
    }
    
    .tc-footer-title {
        justify-content: center;
    }
    
    .tc-footer-menu li,
    .tc-footer-contact li {
        justify-content: center;
    }
    
    .tc-floating-cta {
        bottom: 20px;
        right: 15px;
    }
    
    .tc-floating-cta a {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* ============================================= */
/* 13. UTILITIES                                 */
/* ============================================= */
.text-center { text-align: center; }
.text-white { color: var(--tc-white) !important; }
.text-primary { color: var(--tc-primary) !important; }
.text-secondary { color: var(--tc-secondary) !important; }
.bg-white { background: var(--tc-white); }
.bg-gray { background: var(--tc-gray-50); }
.bg-primary { background: var(--tc-primary); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }
.hidden { display: none !important; }