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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.logo {
    max-width: 120px;
    height: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

main {
    min-height: calc(100vh - 200px);
}

.hero {
    display: flex;
    align-items: center;
    min-height: 600px;
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--white) 100%);
    padding: 4rem 20px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.hero-image {
    width: 100%;
    height: 100%;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

section {
    padding: 4rem 20px;
}

.features {
    background-color: var(--white);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-card figure {
    margin-bottom: 1.5rem;
}

.feature-card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.services-overview {
    background-color: var(--light-bg);
}

.services-overview h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.service-item {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.service-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.process {
    background-color: var(--white);
}

.process h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background-color: var(--light-bg);
    border-radius: 10px;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.materials {
    background-color: var(--light-bg);
}

.materials h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.material-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.material-card:hover {
    transform: translateY(-5px);
}

.material-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.testimonials {
    background-color: var(--white);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.testimonial {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.testimonial p {
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial cite {
    display: block;
    font-style: normal;
    color: #666;
    font-weight: 500;
}

.cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
    color: var(--white);
    text-align: center;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-section p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.cta-section .cta-button {
    background-color: var(--white);
    color: var(--secondary-color);
}

.cta-section .cta-button:hover {
    background-color: var(--light-bg);
}

footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 3rem 20px 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #ccc;
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: background-color 0.3s ease, transform 0.2s ease;
    z-index: 999;
}

.scroll-top:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
}

.scroll-top.visible {
    display: flex;
}

.form-container {
    max-width: 600px;
    margin: 2rem auto;
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

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

.form-group .error-message {
    color: var(--accent-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error input,
.form-group.error textarea {
    border-color: var(--accent-color);
}

.checkbox-group {
    margin-bottom: 1.5rem;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background-color: #2980b9;
}

.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 3rem 20px;
    text-align: center;
}

.page-header h1 {
    color: var(--white);
}

.content-section {
    padding: 3rem 20px;
}

.content-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    margin-top: 2rem;
}

.content-section h2:first-child {
    margin-top: 0;
}

.content-section p {
    margin-bottom: 1rem;
}

.content-section ul,
.content-section ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.content-section li {
    margin-bottom: 0.5rem;
}

.content-section table {
    width: 100%;
    border-collapse: collapse;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-info-item h2 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.portfolio-item {
    background-color: var(--light-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
}

.portfolio-item img {
    width: 100%;
    height: auto;
}

.portfolio-item-content {
    padding: 1.5rem;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .nav-menu {
        position: fixed;
        inset: 70px 0 auto 0;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: transform 0.3s ease;
        box-shadow: var(--shadow);
        padding: 2rem 0 3rem;
        gap: 1rem;
        transform: translateY(-120%);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    section {
        padding: 2rem 20px;
    }

    .features-grid,
    .services-list,
    .process-steps,
    .materials-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

.success-message {
    padding: 4rem 20px;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.success-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--light-bg);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.success-content h1 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.success-content p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 15px;
    }

    section {
        padding: 1.5rem 15px;
    }

    .success-content {
        padding: 2rem 1.5rem;
    }

    .logo-text {
        font-size: 1rem;
    }

    .hero {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 3rem 15px;
        min-height: 420px;
        background: linear-gradient(rgba(17, 27, 39, 0.65), rgba(17, 27, 39, 0.65)), url('../images/hero-blinds.png') center/cover no-repeat;
    }

    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.55) 100%);
        z-index: 0;
    }

    .hero-content {
        position: relative;
        z-index: 1;
        gap: 1.5rem;
    }

    .hero-content h1,
    .hero-subtitle {
        color: var(--white);
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .hero .cta-button {
        background-color: rgba(255, 255, 255, 0.9);
        color: var(--primary-color);
    }

    .hero .cta-button:hover {
        background-color: var(--white);
    }

    .hero-image {
        display: none;
    }
}