/**
 * Thinks TV LED Theme - Main Styles
 *
 * @package Thinks_TV_LED
 * @since 1.0.0
 */

/* ==========================================================================
   Header Styles
   ========================================================================== */

.top-bar {
    background: var(--color-neutral-900);
    color: var(--color-neutral-400);
    font-size: 0.875rem;
    padding: 0.75rem 0;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.top-bar-contact {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-neutral-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-white);
}

.contact-link .icon {
    flex-shrink: 0;
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-zalo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    text-decoration: none;
    padding: 0.375rem 0.75rem;
    background: linear-gradient(135deg, #0068ff 0%, #00a4ff 100%);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-zalo:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 104, 255, 0.4);
}

.btn-facebook {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--color-white);
    background: #1877f2;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.btn-facebook:hover {
    background: #166fe5;
    transform: translateY(-1px);
}

/* Site Header */
.site-header {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1rem 0;
}

.site-branding {
    flex-shrink: 0;
}

.site-logo img {
    max-height: 50px;
    width: auto;
}

.site-title-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-600);
    text-decoration: none;
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-navigation {
    flex: 1;
}

.primary-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.75rem 1rem;
    color: var(--color-neutral-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.menu-item:hover > .nav-link {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.menu-item.current-menu-item > .nav-link {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
}

.menu-item:hover > .nav-link .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.menu-item:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu .nav-link {
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
}

.dropdown-menu .nav-link:hover {
    background: var(--color-neutral-100);
}

.dropdown-submenu {
    position: absolute;
    left: 100%;
    top: 0;
    min-width: 220px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all var(--transition-fast);
}

.dropdown-submenu .menu-item:hover > .dropdown-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.menu-toggle {
    display: none;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-neutral-700);
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 24px;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-text {
    font-weight: 500;
    font-size: 0.9375rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.header-search-toggle,
.header-cart {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-neutral-100);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-neutral-700);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.header-search-toggle:hover,
.header-cart:hover {
    background: var(--color-primary-100);
    color: var(--color-primary-600);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-500);
    color: var(--color-white);
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    padding: 0 5px;
}

.btn-quote {
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    font-size: 0.9375rem;
}

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-form-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    padding: 0 1rem;
}

.search-form-container form {
    display: flex;
    gap: 0.5rem;
}

.search-form-container input[type="search"] {
    flex: 1;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-white);
}

.search-form-container input[type="search"]:focus {
    outline: none;
    border-color: var(--color-primary-600);
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1);
}

.search-form-container button[type="submit"] {
    padding: 1rem 2rem;
    background: var(--color-primary-600);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-form-container button[type="submit"]:hover {
    background: var(--color-primary-700);
}

.search-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 0.5rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    padding: 5rem 0 8rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(6, 182, 212, 0.3) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(236, 72, 153, 0.2) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
}

.particle {
    position: absolute;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle-1 { top: 10%; left: 10%; animation-delay: 0s; }
.particle-2 { top: 50%; right: 10%; animation-delay: 2s; }
.particle-3 { bottom: 20%; left: 40%; animation-delay: 4s; }

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
    margin-bottom: 1.5rem;
}

.hero-badge .icon { opacity: 0.8; }

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item { display: flex; flex-direction: column; }

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    max-width: 600px;
}

.hero-image-wrapper { position: relative; }

.hero-placeholder {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-placeholder .icon { opacity: 0.5; }

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}

.animate-fade-in { animation: fadeIn 0.8s ease-out forwards; opacity: 0; }
.animate-fade-in-up { animation: fadeInUp 0.8s ease-out forwards; opacity: 0; }
.animate-scale-in { animation: scaleIn 0.8s ease-out forwards; opacity: 0; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ==========================================================================
   Section Styles
   ========================================================================== */

.section-header { margin-bottom: 3rem; }

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-primary-50);
    color: var(--color-primary-600);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-neutral-600);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer { margin-top: 3rem; }
.text-center { text-align: center; }

/* ==========================================================================
   Features Section
   ========================================================================== */

.features-section { padding: 5rem 0; background: var(--color-white); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: var(--color-gradient-subtle);
    transform: translateY(-4px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-100) 0%, var(--color-primary-50) 100%);
    border-radius: var(--radius-full);
    color: var(--color-primary-600);
    transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-glow);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--color-neutral-600);
    line-height: 1.7;
}

/* ==========================================================================
   Product Cards
   ========================================================================== */

.products-section { padding: 5rem 0; background: var(--color-neutral-50); }

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-neutral-100);
}

.product-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-thumbnail { transform: scale(1.08); }

.product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-neutral-400);
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.375rem 0.75rem;
    background: var(--color-accent-500);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    text-transform: uppercase;
    z-index: 1;
}

.product-actions {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-fast);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.btn-quickview,
.btn-quick-add {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-neutral-700);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.btn-quickview:hover,
.btn-quick-add:hover {
    background: var(--color-primary-600);
    color: var(--color-white);
}

.product-info { padding: 1.25rem; }

.product-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.product-title a {
    color: var(--color-neutral-900);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.product-title a:hover { color: var(--color-primary-600); }

.product-price {
    font-weight: 700;
    color: var(--color-primary-600);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.product-rating { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; }
.rating-count { font-size: 0.8125rem; color: var(--color-neutral-500); }
.product-cart .btn { padding: 0.75rem 1rem; font-size: 0.875rem; }

/* ==========================================================================
   Projects Section
   ========================================================================== */

.projects-section { padding: 5rem 0; background: var(--color-white); }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.project-card {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.project-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.project-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-neutral-100);
}

.project-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-thumbnail { transform: scale(1.08); }

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay { opacity: 1; }

.project-info { padding: 1.25rem; background: var(--color-white); }

.project-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.project-title a {
    color: var(--color-neutral-900);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.project-title a:hover { color: var(--color-primary-600); }

/* ==========================================================================
   Services Section
   ========================================================================== */

.services-section { padding: 5rem 0; background: var(--color-neutral-50); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-base);
}

.service-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-secondary-100) 0%, var(--color-secondary-50) 100%);
    border-radius: var(--radius-full);
    color: var(--color-secondary-600);
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.service-title a {
    color: var(--color-neutral-900);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.service-title a:hover { color: var(--color-secondary-600); }

.service-excerpt { color: var(--color-neutral-600); margin-bottom: 1rem; line-height: 1.7; }

.service-meta { display: flex; justify-content: center; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }

.service-price, .service-duration {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-neutral-600);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-neutral-900) 0%, var(--color-neutral-800) 100%);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: center;
}

.cta-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-contact { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.125rem;
    transition: color var(--transition-fast);
}

.contact-item:hover { color: var(--color-white); }
.contact-item .icon { flex-shrink: 0; color: var(--color-primary-400); }

.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-white { background: var(--color-white); color: var(--color-neutral-900); }
.btn-white:hover { background: var(--color-neutral-100); }
.btn-outline-white { background: transparent; color: var(--color-white); border: 2px solid rgba(255, 255, 255, 0.3); }
.btn-outline-white:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--color-white); }

.cta-image-wrapper {
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-placeholder { text-align: center; color: rgba(255, 255, 255, 0.6); }
.cta-placeholder .icon { margin-bottom: 0.75rem; opacity: 0.5; }

/* ==========================================================================
   Footer Styles
   ========================================================================== */

.site-footer { background: var(--color-neutral-900); color: var(--color-neutral-400); }

.footer-main { padding: 4rem 0; border-bottom: 1px solid var(--color-neutral-800); }

.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

.footer-widget .widget-title {
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-description { line-height: 1.8; margin-bottom: 1.5rem; }
.footer-contact { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }

.footer-social { display: flex; gap: 0.75rem; }

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-neutral-800);
    border-radius: var(--radius-full);
    color: var(--color-neutral-400);
    transition: all var(--transition-fast);
}

.social-link:hover { background: var(--color-primary-600); color: var(--color-white); transform: translateY(-2px); }

.footer-menu { list-style: none; padding: 0; margin: 0; }
.footer-menu li { margin-bottom: 0.75rem; }

.footer-menu a {
    color: var(--color-neutral-400);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-menu a:hover { color: var(--color-white); transform: translateX(4px); }

.footer-bottom { padding: 1.5rem 0; }

.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; }
.copyright p { margin: 0; }
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { color: var(--color-neutral-400); text-decoration: none; transition: color var(--transition-fast); }
.footer-bottom-links a:hover { color: var(--color-white); }

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--color-primary-600);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
}

.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-700); transform: translateY(-4px); }

/* ==========================================================================
   Projects Grid AJAX
   ========================================================================== */

.projects-grid-ajax {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.project-card.animated { animation: fadeInUp 0.5s ease forwards; }

.project-thumbnail { position: relative; height: 220px; overflow: hidden; }
.project-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-thumbnail img { transform: scale(1.1); }

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #E9D5FF, #FCE7F3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 70px;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(124, 58, 237, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay { opacity: 1; }

.project-view {
    color: white;
    font-weight: 600;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.project-content { padding: 24px; }

.project-title { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: #0f172a; }

.project-client,
.project-location { font-size: 14px; color: #64748b; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }

.project-area,
.project-specs {
    display: inline-block;
    background: #F3E8FF;
    color: #7C3AED;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-right: 5px;
    margin-top: 8px;
}

.projects-loading { text-align: center; padding: 60px 0; }

.loading-spinner {
    display: inline-block;
    width: 48px;
    height: 48px;
    border: 4px solid #e2e8f0;
    border-top-color: #7C3AED;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.projects-pagination { display: flex; justify-content: center; gap: 8px; margin-top: 50px; flex-wrap: wrap; }

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 14px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    color: #64748b;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.page-link:hover,
.page-link.active { background: #7C3AED; border-color: #7C3AED; color: white; }

.projects-load-more {
    background: #7C3AED;
    border: none;
    color: white;
    padding: 16px 40px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
}

.projects-load-more:hover {
    background: #6D28D9;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.projects-load-more:disabled { opacity: 0.5; cursor: not-allowed; }

.projects-category-filter {
    min-width: 280px;
    padding: 14px 24px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 15px;
    color: #475569;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.projects-category-filter:focus {
    outline: none;
    border-color: #7C3AED;
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1);
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */

@media (max-width: 1279px) {
    .features-grid, .services-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-image { width: 50%; }
    .cta-content { grid-template-columns: 1fr; gap: 2rem; }
    .cta-image { display: none; }
    .single-post-wrapper { grid-template-columns: 1fr; }
    .sidebar { padding-left: 0; }
}

@media (max-width: 1023px) {
    .primary-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        padding: 6rem 1.5rem 1.5rem;
        gap: 0.25rem;
        transition: right var(--transition-base);
        z-index: var(--z-modal);
        box-shadow: var(--shadow-2xl);
        overflow-y: auto;
    }
    .primary-menu.active { right: 0; }
    .nav-link { padding: 1rem; font-size: 1rem; }
    .dropdown-menu, .dropdown-submenu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; padding-left: 1rem; }
    .menu-toggle { display: flex; }
    .btn-quote { display: none; }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
    .hero-section { padding: 4rem 0 6rem; }
    .hero-title { font-size: 2.5rem; }
    .top-bar-inner { flex-direction: column; gap: 1rem; }
    .top-bar-contact { justify-content: center; }
    .shop-layout { grid-template-columns: 1fr; }
    .shop-sidebar { margin-bottom: 2rem; }
    .projects-grid-ajax { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
    .features-grid, .services-grid, .projects-grid, .products-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .hero-image { display: none; }
    .section-title { font-size: 1.75rem; }
    .post-featured-image { height: 300px; }
    .entry-title { font-size: 1.75rem; }
    .post-navigation { grid-template-columns: 1fr; }
    .author-box { flex-direction: column; text-align: center; }
    .author-social { justify-content: center; }
    .projects-grid-ajax { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .projects-category-filter { min-width: 100%; }
}

@media (max-width: 639px) {
    .hero-section { padding: 3rem 0 4rem; }
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .stat-number { font-size: 2rem; }
    .search-form-container form { flex-direction: column; }
    .search-form-container button[type="submit"] { width: 100%; }
    .projects-grid-ajax { grid-template-columns: 1fr; }
}