:root {
    --primary: #E60028;
    /* Hoyer Red */
    --primary-dark: #B0001E;
    --secondary: #003056;
    /* Hoyer Navy */
    --light: #f4f4f4;
    --dark: #1a1a1a;
    --text: #333333;
    --white: #ffffff;
    --border: #e0e0e0;
    --font-heading: 'Verdana', 'Geneva', sans-serif;
    /* Fallback to Verdana as Vito is custom */
    --container: 1300px;
    --header-h: 90px;
    --topbar-h: 42px;
}

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

body {
    font-family: 'Verdana', 'Geneva', sans-serif;
    color: var(--text);
    overflow-x: hidden;
    background: var(--white);
    line-height: 1.5;
}

body.loading {
    overflow: hidden;
}

/* Advanced Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s cubic-bezier(0.65, 0, 0.35, 1), visibility 0.6s ease;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
    position: relative;
}

.oil-drop {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    animation: dropFloat 2s ease-in-out infinite;
    z-index: 2;
}

.oil-drop i {
    filter: drop-shadow(0 10px 15px rgba(196, 14, 29, 0.3));
    background: -webkit-linear-gradient(45deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary);
    border-radius: 50%;
    border-radius: 0 50% 50% 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    animation: rippleEffect 2s linear infinite;
    opacity: 0;
    z-index: 1;
}

.ripple.delay-1 {
    animation-delay: 0.6s;
}

.loading-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(10px);
    animation: textReveal 1s ease-out forwards 0.3s;
}

.loading-text span {
    color: var(--primary);
}

@keyframes dropFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes rippleEffect {
    0% {
        width: 100%;
        height: 100%;
        opacity: 0.8;
        border-width: 4px;
    }

    100% {
        width: 250%;
        height: 250%;
        opacity: 0;
        border-width: 0;
    }
}

@keyframes textReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.top-bar {
    height: var(--topbar-h);
    background: var(--white);
    border-bottom: 1px solid #eee;
    color: var(--secondary);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    font-weight: 600;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.top-links {
    display: flex;
    gap: 20px;
}

.top-links a {
    color: #666;
    text-decoration: none;
    transition: 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.top-links a:hover {
    color: var(--primary);
}

.main-header {
    height: var(--header-h);
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    /* Red Logo */
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-style: italic;
    /* Slight dynamism */
}

.logo span {
    color: var(--secondary);
    /* Blue part */
}

.logo i {
    display: none;
    /* Remove icon for wordmark style if preferred, or keep */
}

.main-nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: 0.3s;
}

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

.btn {
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

.hero-part {
    height: 700px;
    background: linear-gradient(rgba(18, 18, 18, 0.4), rgba(18, 18, 18, 0.4)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?q=80&w=2600&auto=format&fit=crop');
    background-size: cover;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 450px;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    color: var(--white);
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 32px;
    max-width: 600px;
}

.calc-widget {
    background: var(--white);
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 8px;
}

.input-wrap {
    position: relative;
}

.input-wrap input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    outline: none;
    font-weight: 500;
}

.input-wrap input:focus {
    border-color: var(--primary);
}

.input-wrap i {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #bbb;
}

.price-box {
    margin-top: 24px;
    padding: 20px;
    background: #f1f8e9;
    border: 1px solid #c8e6c9;
    border-radius: 4px;
    text-align: center;
}

.price-large {
    font-size: 2.2rem;
    font-weight: 800;
    color: #2e7d32;
    display: block;
    line-height: 1;
    margin: 5px 0;
}

.section-part {
    padding: 100px 0;
}

.footer-part {
    background: #1a1a1a;
    color: #888;
    padding-top: 80px;
    font-size: 0.95rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 60px;
    border-bottom: 1px solid #333;
}

.footer-title {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 24px;
    font-weight: 700;
}

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

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

.footer-list a {
    text-decoration: none;
    color: #888;
    transition: 0.2s;
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
}

@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

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

    .hero-content {
        text-align: center;
        margin-bottom: 40px;
    }

    .hero-content p {
        margin: 0 auto 32px;
    }

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

    .main-nav {
        display: none;
    }

    .top-bar {
        display: none;
    }

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

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-box {
    background: var(--white);
    width: 100%;
    max-width: 450px;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    border-top: 5px solid var(--primary);
}

.modal-overlay.active .modal-box {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: #999;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--primary);
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 10px;
    text-align: center;
}

.modal-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.form-full-btn {
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.mobile-actions {
    display: none;
    gap: 15px;
    align-items: center;
}

.mobile-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary);
    cursor: pointer;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-sidebar {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100%;
    background: var(--white);
    z-index: 2001;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.mobile-menu-sidebar.active {
    right: 0;
}

.mobile-menu-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-logo span {
    color: var(--primary);
}

.close-menu {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
}

.mobile-nav-list {
    list-style: none;
    padding: 20px;
    flex: 1;
}

.mobile-nav-list li {
    margin-bottom: 20px;
}

.mobile-nav-list a {
    text-decoration: none;
    color: var(--secondary);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-nav-list i {
    width: 24px;
    text-align: center;
    color: #999;
}

.mobile-menu-footer {
    padding: 20px;
    background: #f9f9f9;
    border-top: 1px solid #eee;
}

.mobile-contact {
    text-align: center;
    margin-top: 15px;
}

.mobile-contact a {
    color: #666;
    text-decoration: none;
    font-size: 0.9rem;
}

body.noscroll {
    overflow: hidden;
}

@media (max-width: 1024px) {
    .desktop-actions {
        display: none;
    }

    .mobile-actions {
        display: flex;
    }

    .btn-sm-mobile {
        padding: 8px 12px;
    }

    .mobile-logo {
        font-size: 1.2rem;
    }
}

@media (max-width: 600px) {
    .hero-part {
        height: auto;
        padding: 40px 0;
        background-attachment: scroll;
    }

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

    .calc-widget {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
    }

    .logo {
        font-size: 1.4rem;
    }

    #mobile-menu-btn {
        display: block !important;
        font-size: 1.5rem;
        color: #333;
        z-index: 1001;
    }

    .section-part,
    .hero-section,
    .about-section,
    .testimonials-section,
    .features-section {
        padding: 60px 0 !important;
    }

    .footer-part {
        padding: 40px 0;
        text-align: center;
    }

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

    .footer-list {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-title {
        font-size: 2.2rem !important;
    }

    .hero-part {
        height: auto;
        padding: 100px 0 60px;
    }

    .calc-widget {
        margin-top: 40px;
    }
}

.section-premium {
    background: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.glass-card {
    background: #ffffff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    padding: 60px;
    position: relative;
    z-index: 1;
}

.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary);
    letter-spacing: -0.5px;
    background: none;
    -webkit-text-fill-color: initial;
}

.section-title p {
    color: #888;
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

.form-premium-input {
    background: #f9f9f9;
    border: 1px solid #eee;
    padding: 16px 20px;
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.2s ease;
    color: var(--secondary);
}

.form-premium-input:focus {
    background: #fff;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(45, 52, 54, 0.05);
    transform: none;
}

.form-field label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #aaa;
    margin-bottom: 10px;
    display: block;
}

.btn-premium-send {
    background: var(--secondary);
    color: white;
    padding: 18px 40px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    box-shadow: none;
}

.btn-premium-send:hover {
    background: #000;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.btn-premium-send i {
    font-size: 0.9rem;
    color: var(--primary);
}

.btn-premium-send:active {
    transform: translateY(-1px);
}