/* ==========================================
   SmartCurtains - Premium Smart Curtain Website
   Color Palette: Deep Green (#014F3C), Gray-White
   ========================================== */

:root {
    --primary-color: #014F3C;
    --primary-light: #026B52;
    --primary-dark: #013D2F;
    --accent-gold: #B8A369;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #888888;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #f0f2f5;
    --border-color: #e0e0e0;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-heavy: 0 8px 40px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--text-gray);
    line-height: 1.8;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-light);
}

/* ==========================================
   Layout Components
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.section-header p {
    max-width: 600px;
    margin: 30px auto 0;
    font-size: 1.1rem;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 3px;
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background: var(--primary-light);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-white {
    background: var(--bg-white);
    color: var(--primary-color);
}

.btn-white:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

.btn-outline-white:hover {
    background: var(--bg-white);
    color: var(--primary-color);
}

.btn-small {
    padding: 10px 25px;
    font-size: 0.875rem;
}

/* ==========================================
   Header / Navigation
   ========================================== */
.top-bar {
    background: var(--primary-dark);
    color: var(--bg-white);
    padding: 10px 0;
    font-size: 0.9rem;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-contact {
    display: flex;
    gap: 30px;
}

.top-bar-contact a {
    color: var(--bg-white);
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar-contact a:hover {
    color: var(--accent-gold);
}

.language-switch {
    display: flex;
    gap: 10px;
}

.language-switch a {
    color: rgba(255,255,255,0.7);
    padding: 5px 10px;
    border-radius: 3px;
}

.language-switch a:hover,
.language-switch a.active {
    color: var(--bg-white);
    background: rgba(255,255,255,0.1);
}

header {
    background: var(--bg-white);
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -1px;
}

.logo span {
    font-weight: 300;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

nav ul li a {
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 10px 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color);
}

.header-cta .btn {
    padding: 12px 25px;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(1,79,60,0.3) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--bg-white);
    max-width: 700px;
}

.hero-content h1 {
    color: var(--bg-white);
    font-size: 3.5rem;
    margin-bottom: 25px;
    line-height: 1.2;
}

.hero-content p {
    color: rgba(255,255,255,0.9);
    font-size: 1.25rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* ==========================================
   Features Section
   ========================================== */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-white);
    padding: 50px 35px;
    text-align: center;
    border-radius: 5px;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--bg-white);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

.feature-card p {
    font-size: 0.95rem;
}

/* ==========================================
   Products Section
   ========================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.product-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(1,79,60,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.product-info {
    padding: 25px;
}

.product-info h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.product-info p {
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* ==========================================
   Smart Integration Section
   ========================================== */
.smart-integration {
    background: var(--primary-color);
    color: var(--bg-white);
}

.smart-integration .section-header h2,
.smart-integration .section-header p {
    color: var(--bg-white);
}

.smart-integration .section-header h2::after {
    background: var(--accent-gold);
}

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

.integration-card {
    background: rgba(255,255,255,0.1);
    padding: 40px 25px;
    text-align: center;
    border-radius: 5px;
    transition: var(--transition);
}

.integration-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.integration-icon {
    width: 100px;
    height: 100px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.integration-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.integration-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.integration-card h4 {
    color: var(--bg-white);
    margin-bottom: 10px;
}

.integration-card p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

/* ==========================================
   How It Works Section
   ========================================== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: var(--border-color);
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 120px;
    height: 120px;
    background: var(--bg-white);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    position: relative;
    z-index: 2;
}

.step-number span {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.process-step h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.process-step p {
    font-size: 0.95rem;
    padding: 0 10px;
}

/* ==========================================
   Projects / Gallery Section
   ========================================== */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-gray);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(1,79,60,0.05);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    height: 300px;
    overflow: hidden;
    border-radius: 5px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(1,79,60,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 2rem;
    color: var(--bg-white);
    margin-bottom: 15px;
}

.gallery-overlay h4 {
    color: var(--bg-white);
    font-size: 1.1rem;
}

.gallery-overlay p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

/* ==========================================
   About Section
   ========================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 5px;
    box-shadow: var(--shadow-heavy);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: 5px;
    z-index: -1;
}

.about-text h2 {
    margin-bottom: 25px;
}

.about-text p {
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 0.9rem;
}

/* ==========================================
   Contact Section
   ========================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 30px;
}

.contact-details {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
}

.contact-item div h4 {
    margin-bottom: 5px;
}

.contact-item div p,
.contact-item div a {
    color: var(--text-gray);
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 5px;
}

.contact-form h3 {
    margin-bottom: 25px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(1,79,60,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
}

/* ==========================================
   Product Detail Page
   ========================================== */
.product-detail-hero {
    background: var(--bg-light);
    padding: 80px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.main-image {
    width: 100%;
    height: 500px;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 15px;
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.thumbnail {
    height: 80px;
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--primary-color);
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info h1 {
    margin-bottom: 15px;
}

.product-price {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-description {
    margin-bottom: 30px;
}

.product-features {
    margin-bottom: 30px;
}

.product-features h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-features ul {
    list-style: none;
}

.product-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-features li i {
    color: var(--primary-color);
}

.customization-form {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.customization-form h4 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.size-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.color-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.color-option {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
}

.color-option:hover,
.color-option.selected {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

/* ==========================================
   Page Hero (Interior Pages)
   ========================================== */
.page-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 100px 0 80px;
    text-align: center;
    color: var(--bg-white);
}

.page-hero h1 {
    color: var(--bg-white);
    margin-bottom: 15px;
}

.page-hero p {
    color: rgba(255,255,255,0.8);
    font-size: 1.1rem;
}

.breadcrumb {
    margin-top: 20px;
}

.breadcrumb a {
    color: rgba(255,255,255,0.7);
}

.breadcrumb a:hover {
    color: var(--bg-white);
}

.breadcrumb span {
    color: rgba(255,255,255,0.5);
    margin: 0 10px;
}

/* ==========================================
   Footer
   ========================================== */
footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.8);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
    color: var(--bg-white);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    margin-bottom: 25px;
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.footer-links h4 {
    color: var(--bg-white);
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
    color: rgba(255,255,255,0.6);
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 3px;
}

.footer-bottom {
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
}

.footer-bottom-links a {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.footer-bottom-links a:hover {
    color: var(--bg-white);
}

/* Golden Key Marketing Footer Credit */
.footer-credit {
    text-align: center;
    padding: 20px 0;
    background: rgba(0,0,0,0.2);
    margin-top: 20px;
}

.footer-credit p {
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
}

.footer-credit a {
    color: rgba(255,255,255,0.5);
}

.footer-credit a:hover {
    color: var(--bg-white);
}

/* ==========================================
   Lightbox
   ========================================== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: var(--bg-white);
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--accent-gold);
}

/* ==========================================
   CTA Banner
   ========================================== */
.cta-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-banner h2 {
    color: var(--bg-white);
    margin-bottom: 20px;
}

.cta-banner p {
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
}

.cta-banner .btn {
    margin: 0 10px;
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    .hero-content h1 {
        font-size: 2.75rem;
    }

    .features-grid,
    .products-grid,
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .integration-grid,
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps::before {
        display: none;
    }

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

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .top-bar .container {
        flex-direction: column;
        gap: 10px;
    }

    .header-main {
        flex-wrap: wrap;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    nav {
        display: none;
        width: 100%;
        order: 3;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
    }

    nav ul li a {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .header-cta {
        display: none;
    }

    .hero {
        min-height: 70vh;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .features-grid,
    .products-grid,
    .integration-grid,
    .process-steps,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .about-content,
    .contact-wrapper,
    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .about-image::before {
        display: none;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .gallery-filters {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }

    .feature-card,
    .contact-form {
        padding: 30px 20px;
    }

    .size-inputs {
        grid-template-columns: 1fr;
    }
}