/* ===================================
   Remo2 Wasserfilter - Modern Stylesheet
   =================================== */

/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #0066CC;
    --primary-aqua: #4DD0E1;
    --dark-blue: #004C99;
    --white: #FFFFFF;
    --black: #1A1A1A;
    --gray-dark: #333333;
    --gray-medium: #666666;
    --gray-light: #E0E0E0;
    --gray-bg: #F8F9FA;
    --transition: all 0.3s ease;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--black);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

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

/* Header & Navigation */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 20px 0;
}

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

.logo img {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
    align-items: center;
}

.nav-menu a {
    color: var(--gray-dark);
    font-weight: 500;
    font-size: 1rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu .cta-nav {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-aqua));
    color: var(--white);
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
}

.nav-menu .cta-nav::after {
    display: none;
}

.nav-menu .cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5.5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5.5px, -6px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 120px 20px 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85), rgba(77, 208, 225, 0.75));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 25px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.8;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-blue);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
}

.btn-phone {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-phone:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.4);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* Trust Section */
.trust-section {
    padding: 60px 20px;
    background: var(--white);
    border-bottom: 1px solid var(--gray-light);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.trust-item {
    text-align: center;
    padding: 20px;
}

.trust-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.trust-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--black);
}

.trust-item p {
    color: var(--gray-medium);
    font-size: 0.95rem;
}

/* Section Styles */
section {
    padding: 100px 20px;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-bottom: 20px;
    color: var(--black);
}

.section-intro {
    font-size: 1.15rem;
    color: var(--gray-medium);
    line-height: 1.8;
}

/* Products Section */
.products {
    background: var(--gray-bg);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-card h3 {
    padding: 25px 25px 15px;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.product-card p {
    padding: 0 25px 25px;
    color: var(--gray-medium);
    line-height: 1.7;
}

/* Benefits Section */
.benefits-section {
    background: var(--white);
}

.benefits-grid-large {
    display: grid;
    gap: 50px;
}

.benefit-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    background: var(--gray-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.benefit-card:nth-child(even) {
    direction: rtl;
}

.benefit-card:nth-child(even) > * {
    direction: ltr;
}

.benefit-image {
    width: 100%;
    height: 350px;
    overflow: hidden;
}

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

.benefit-content {
    padding: 40px;
}

.benefit-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-blue);
}

.benefit-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-medium);
}

/* Process Section */
.process-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-aqua));
    color: var(--white);
}

.process-section .section-header h2,
.process-section .section-intro {
    color: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.process-step {
    text-align: center;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

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

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--white);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.process-step h3 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.process-step p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

/* FAQ Section */
.faq-section {
    background: var(--gray-bg);
}

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

.faq-item {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.faq-item h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.faq-item p {
    color: var(--gray-medium);
    line-height: 1.7;
}

/* Contact Section */
.contact-section {
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 50px;
}

.contact-info h3,
.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--primary-blue);
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    color: var(--primary-blue);
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--black);
}

.contact-item a {
    color: var(--primary-blue);
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--gray-bg);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
}

.form-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-weight: 400;
}

.form-checkbox input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.form-checkbox span {
    line-height: 1.6;
}

.form-checkbox a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.form-checkbox a:hover {
    color: var(--dark-blue);
}

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

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 60px 20px 30px;
}

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

.footer-logo img {
    height: 60px;
    width: auto;
    margin-bottom: 20px;
    border-radius: 10px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

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

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

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

.footer-contact p {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-legal {
    margin-bottom: 15px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 10px;
    transition: var(--transition);
}

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

.footer-legal span {
    color: rgba(255, 255, 255, 0.3);
}

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

/* Responsive Design */
@media (max-width: 968px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .benefit-card {
        grid-template-columns: 1fr;
    }

    .benefit-card:nth-child(even) {
        direction: ltr;
    }

    .benefit-image {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 999;
    }

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

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
        min-height: 90vh;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    section {
        padding: 60px 20px;
    }

    .product-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .footer-logo img {
        margin: 0 auto 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

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

    .contact-form {
        padding: 25px;
    }
}