:root {
    --primary: #E8740C;
    --primary-dark: #c96200;
    --primary-light: #ff9d3f;
    --secondary: #1a2332;
    --dark: #0f1923;
    --dark-light: #243447;
    --text: #334155;
    --text-light: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* ==================== BUTTONS ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-family: inherit;
    letter-spacing: 0.01em;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(232, 116, 12, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--secondary);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 38px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ==================== NAVBAR ==================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 25, 35, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    color: var(--white);
}

.logo i {
    color: var(--primary);
    font-size: 1.6rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-menu a {
    color: rgba(255,255,255,0.8);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-menu a:hover {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.nav-cta {
    background: var(--primary) !important;
    color: var(--white) !important;
    border-radius: 50px !important;
    padding: 10px 24px !important;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
}

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

.nav-toggle span {
    width: 26px;
    height: 2.5px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== HERO ==================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 25, 35, 0.92) 0%, rgba(26, 35, 50, 0.75) 50%, rgba(15, 25, 35, 0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    background: rgba(232, 116, 12, 0.15);
    color: var(--primary-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid rgba(232, 116, 12, 0.25);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    max-width: 580px;
    line-height: 1.8;
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stats .stat strong {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-light);
}

.hero-stats .stat span {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

/* ==================== SECTION HEADERS ==================== */

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-header.light h2 {
    color: var(--white);
}

.section-header.light p {
    color: rgba(255,255,255,0.6);
}

.section-tag {
    display: inline-block;
    background: rgba(232, 116, 12, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
}

/* ==================== SERVICES ==================== */

.services {
    padding: 100px 0;
    background: var(--light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

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

.service-image {
    height: 220px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.08);
}

.service-content {
    padding: 32px;
}

.service-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 18px;
}

.service-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
}

.service-content > p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 500;
}

.service-features li i {
    color: var(--primary);
    font-size: 0.75rem;
}

/* ==================== ABOUT ==================== */

.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img-main img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.about-img-secondary {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 5px solid var(--white);
    box-shadow: var(--shadow-lg);
}

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

.about-experience-badge {
    position: absolute;
    top: -20px;
    left: -20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-experience-badge strong {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.about-experience-badge span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

.about-content .section-tag {
    display: inline-block;
    margin-bottom: 12px;
}

.about-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.about-lead {
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 16px;
    font-weight: 500;
}

.about-content > p {
    color: var(--text-light);
    margin-bottom: 32px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.about-feature > i {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(232, 116, 12, 0.1);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.about-feature h4 {
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ==================== ADVANTAGES ==================== */

.advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--dark) 100%);
}

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

.advantage-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 36px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
    border-color: rgba(232, 116, 12, 0.3);
}

.advantage-number {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255,255,255,0.04);
    line-height: 1;
}

.advantage-card > i {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    display: block;
}

.advantage-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.advantage-card p {
    color: rgba(255,255,255,0.55);
    font-size: 0.93rem;
    line-height: 1.7;
}

/* ==================== GALLERY ==================== */

.gallery {
    padding: 100px 0;
    background: var(--light);
}

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

.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 280px;
    cursor: pointer;
}

.gallery-item.large {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 25, 35, 0.85) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-overlay h4 {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
}

.gallery-overlay p {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
}

/* ==================== PRICING ==================== */

.pricing {
    padding: 100px 0;
}

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

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 2px solid var(--border);
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    padding: 6px 24px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
}

.pricing-header h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 4px;
}

.pricing-header p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.pricing-price {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.price-amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--secondary);
    line-height: 1;
}

.price-unit {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 4px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.93rem;
    color: var(--text);
}

.pricing-features li i {
    font-size: 0.8rem;
}

.pricing-features li .fa-check {
    color: var(--primary);
}

.pricing-features li.disabled {
    color: var(--text-light);
    opacity: 0.5;
}

.pricing-features li.disabled .fa-times {
    color: var(--text-light);
}

.pricing-card .btn-outline {
    color: var(--secondary);
    border-color: var(--border);
}

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

/* ==================== TESTIMONIALS ==================== */

.testimonials {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--dark) 0%, var(--secondary) 100%);
}

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

.testimonial-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: var(--transition);
}

.testimonial-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

.testimonial-stars {
    margin-bottom: 18px;
    color: #fbbf24;
    font-size: 0.9rem;
    display: flex;
    gap: 3px;
}

.testimonial-card > p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    font-style: italic;
    margin-bottom: 24px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 0.85rem;
}

.testimonial-author strong {
    display: block;
    color: var(--white);
    font-size: 0.95rem;
}

.testimonial-author span {
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
}

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

.cta-section {
    padding: 100px 0;
    background: var(--light);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.cta-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.cta-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.cta-text h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 16px;
}

.cta-text > p {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.cta-contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.cta-contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.cta-contact-item > i {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(232, 116, 12, 0.1);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.cta-contact-item span {
    font-size: 0.8rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-contact-item strong {
    display: block;
    font-size: 1.1rem;
    color: var(--secondary);
}

/* ==================== CONTACT ==================== */

.contact {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    margin-bottom: 24px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(232, 116, 12, 0.1);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background: var(--light);
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.info-card > i {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 14px;
    display: block;
}

.info-card h4 {
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 8px;
    font-size: 1rem;
}

.info-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ==================== FOOTER ==================== */

.footer {
    background: var(--dark);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-about .logo {
    margin-bottom: 16px;
}

.footer-about > p {
    color: rgba(255,255,255,0.45);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-newsletter h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.45);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-newsletter p {
    color: rgba(255,255,255,0.45);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    color: var(--white);
    font-size: 0.9rem;
    font-family: inherit;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.newsletter-form button {
    width: 46px;
    height: 46px;
    background: var(--primary);
    border: none;
    border-radius: 10px;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.newsletter-form button:hover {
    background: var(--primary-dark);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    color: rgba(255,255,255,0.3);
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: rgba(255,255,255,0.3);
    font-size: 0.85rem;
}

.footer-bottom-links a:hover {
    color: var(--primary-light);
}

/* ==================== BACK TO TOP ==================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ==================== FORM SUCCESS ==================== */

.form-success {
    text-align: center;
    padding: 40px;
}

.form-success i {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
}

.form-success p {
    color: var(--text-light);
}

/* ==================== ANIMATIONS ==================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

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

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

    .gallery-item.large {
        grid-column: span 1;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .cta-content {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 0;
        transition: right 0.4s ease;
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
    }

    .nav-menu.open {
        right: 0;
    }

    .nav-menu a {
        padding: 14px 16px;
        font-size: 1rem;
        display: block;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

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

    .hero-buttons .btn {
        justify-content: center;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .cta-image img {
        height: 280px;
    }

    .about-img-secondary {
        right: 10px;
        bottom: -20px;
        width: 150px;
        height: 150px;
    }

    .about-experience-badge {
        left: 10px;
        top: -15px;
        padding: 14px;
    }

    .about-experience-badge strong {
        font-size: 1.5rem;
    }
}