/* ========================================
   ISV Reinigung - Modern CSS 2026
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    /* Colors */
    --primary-color: #00b4d8;
    --primary-dark: #0096c7;
    --primary-light: #48cae4;
    --secondary-color: #023e8a;
    --accent-color: #90e0ef;
    
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #757575;
    --text-white: #ffffff;
    
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #0a1929;
    --bg-overlay: rgba(10, 25, 41, 0.85);
    
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    /* Spacing */
    --section-padding: 100px;
    --container-padding: 20px;
    --max-width: 1200px;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

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

/* === UTILITIES === */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.section-subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.section-title {
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-medium);
    max-width: 700px;
    margin: 0 auto;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-medium);
    text-align: center;
}

.btn i {
    font-size: 1.125rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    box-shadow: 0 4px 16px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 180, 216, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-whatsapp {
    background: #25d366;
    color: var(--text-white);
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.125rem;
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px var(--container-padding);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand img {
    height: 120px;
    width: auto;
    transition: var(--transition-medium);
}

.nav-brand i {
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-medium);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 24px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition-medium);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a1929 0%, #1e3a5f 100%);
    background-image: 
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(0,180,216,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,170.7C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>'),
        linear-gradient(135deg, #0a1929 0%, #1e3a5f 100%);
    background-size: 100% 100%, cover;
    background-position: bottom, center;
    background-repeat: no-repeat;
    padding-top: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 180, 216, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(72, 202, 228, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 1;
    padding: 60px var(--container-padding);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: var(--text-white);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 30px;
    animation: fadeInDown 0.8s ease;
}

.hero-title {
    color: var(--text-white);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 50px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.stat-item {
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    transition: var(--transition-medium);
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    animation: fadeInUp 0.8s ease 1s backwards;
}

.hero-trust i {
    color: var(--success);
    font-size: 1.125rem;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
}

/* === SERVICES SECTION === */
.services {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    position: relative;
    padding: 40px 30px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.05) 0%, rgba(2, 62, 138, 0.05) 100%);
}

.service-badge {
    position: absolute;
    top: -12px;
    right: 30px;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-md);
    color: var(--text-white);
    font-size: 2rem;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(0, 180, 216, 0.3);
}

.service-title {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    margin-bottom: 16px;
    color: var(--text-dark);
}

.service-description {
    color: var(--text-medium);
    margin-bottom: 24px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-bottom: 30px;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    color: var(--text-medium);
    font-size: 0.9375rem;
}

.service-features li i {
    color: var(--success);
    font-size: 1rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition-medium);
}

.service-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}

/* === WHY ISV SECTION === */
.why-isv {
    padding: var(--section-padding) 0;
    background: var(--bg-white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.why-card {
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    border: 2px solid transparent;
}

.why-card:hover {
    background: var(--bg-white);
    border-color: var(--primary-light);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.why-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-md);
    color: var(--text-white);
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.why-card h3 {
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.why-card p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* === PROCESS SECTION === */
.process {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.05) 0%, rgba(2, 62, 138, 0.05) 100%);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.process-step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(0, 180, 216, 0.3);
    z-index: 2;
}

.step-content {
    padding: 50px 30px 30px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
    height: 100%;
}

.step-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.step-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-size: 2rem;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.step-content p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.process-cta {
    text-align: center;
}

/* === REFERENCES SECTION === */
.references {
    padding: var(--section-padding) 0;
    background: var(--bg-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.testimonial-card {
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    border: 2px solid transparent;
}

.testimonial-card:hover {
    background: var(--bg-white);
    border-color: var(--primary-light);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.125rem;
    margin-bottom: 20px;
}

.testimonial-stars i {
    margin-right: 4px;
}

.testimonial-text {
    color: var(--text-medium);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    color: var(--text-white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.author-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.author-company {
    font-size: 0.875rem;
    color: var(--text-light);
}

.trust-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px;
    background: rgba(0, 180, 216, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-medium);
}

.trust-badge:hover {
    background: rgba(0, 180, 216, 0.1);
    transform: translateY(-3px);
}

.trust-badge i {
    font-size: 2rem;
    color: var(--primary-color);
}

.trust-badge span {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9375rem;
}

/* === CONTACT FORM SECTION === */
.contact-form-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.05) 0%, rgba(2, 62, 138, 0.05) 100%);
}

.contact-form-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-form-content {
    background: var(--bg-white);
    padding: 50px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form {
    margin-top: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-dark);
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: var(--transition-medium);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: var(--bg-white);
    border-color: var(--primary-color);
}

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

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.875rem;
    font-weight: 400;
    cursor: pointer;
}

.form-success,
.form-error {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-md);
    margin-top: 20px;
    font-weight: 500;
}

.form-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.form-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 2px solid rgba(239, 68, 68, 0.3);
}

.form-success.show,
.form-error.show {
    display: flex;
}

.contact-info-sidebar {
    position: sticky;
    top: 100px;
}

.contact-info-card {
    padding: 40px 30px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-info-card h3 {
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.contact-item:last-of-type {
    border-bottom: none;
}

.contact-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.contact-details a {
    color: var(--text-dark);
    font-weight: 500;
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* === FOOTER === */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-brand img {
    height: 80px;
    width: auto;
}

.footer-brand i {
    font-size: 1.75rem;
}

.footer-description {
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 0.9375rem;
}

.footer-trust {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
}

.footer-column h4 {
    color: var(--text-white);
    font-size: 1.125rem;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-medium);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 4px;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-medium);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-legal {
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 0.875rem;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-medium);
}

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

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* === FLOATING BUTTONS === */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25d366;
    color: var(--text-white);
    border-radius: 50%;
    font-size: 1.75rem;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-medium);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    z-index: 998;
    transition: all var(--transition-medium);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* === ANIMATIONS === */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .contact-form-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-info-sidebar {
        position: relative;
        top: 0;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .nav-menu {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 75px);
        flex-direction: column;
        background: var(--bg-white);
        padding: 30px;
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-medium);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .services-grid,
    .why-grid,
    .process-timeline,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-content {
        padding: 30px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
    }
    
    .scroll-top {
        bottom: 90px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.75rem;
        padding: 8px 16px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9375rem;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }
}