:root {
    --color-primary: #111111;
    --color-secondary: #333333;
    --color-accent: #f2f2f2;
    --color-text: #444444;
    --color-bg-light: #ffffff;
    --color-bg-gray: #f9f9f9;
    --color-bg-dark: #1a1a1a;
    --color-border: #e0e0e0;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-light);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s ease;
}

ul {
    list-style: none;
}

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

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

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

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

.hidden {
    display: none;
}

/* Typography */
.heading-primary {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1.2;
}

.heading-secondary {
    font-family: var(--font-heading);
    font-size: 2/5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.heading-tertiary {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.text-lead {
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    background-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
    border-radius: 4px;
    border: 2px solid var(--color-primary);
    cursor: pointer;
}

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

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

.btn-outline:hover {
    background-color: var(--color-primary);
    color: #fff;
}

/* Advertisement Note Top */
.ad-notice-top {
    background-color: #f0f0f0;
    color: #666;
    font-size: 0.85rem;
    text-align: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.header__logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -1px;
}

.header__nav-list {
    display: flex;
    gap: var(--spacing-lg);
}

.header__nav-link {
    font-weight: 500;
    color: var(--color-secondary);
}

.header__nav-link:hover {
    color: var(--color-primary);
}

.header__cta {
    display: block;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1100;
    width: 30px;
    height: 20px;
    position: relative;
    background: none;
    border: none;
}

.hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    position: absolute;
    transition: all 0.3s ease;
}

.hamburger__line:nth-child(1) {
    top: 0;
}

.hamburger__line:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger__line:nth-child(3) {
    bottom: 0;
}

.hamburger.active .hamburger__line:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

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

.hamburger.active .hamburger__line:nth-child(3) {
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    height: 100vh;
    background-color: #fff;
    z-index: 1050;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.1);
    padding: 80px var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

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

.mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav__link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    padding: var(--spacing-xl) 0;
    background: radial-gradient(circle at top right, #f5f5f5, #ffffff);
    min-height: 80vh;
}

.hero__content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero__text {
    max-width: 600px;
}

.hero__image-wrapper {
    position: relative;
}

.hero__image {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.hero__image:hover {
    transform: translateY(-10px);
}

/* About & Why Us */
.about__grid,
.why-us__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.card {
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.icon-box {
    width: 60px;
    height: 60px;
    background-color: var(--color-bg-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

/* Features/Why Us Specific */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* Testimonials */
.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--color-bg-gray);
    padding: var(--spacing-lg);
    border-radius: 8px;
    text-align: center;
}

.testimonial-card__text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.testimonial-card__author {
    font-weight: 700;
    color: var(--color-primary);
}

.stars {
    color: #f1c40f;
    margin-bottom: var(--spacing-sm);
}

/* FAQ */
.faq__item {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.faq__question {
    width: 100%;
    text-align: left;
    padding: var(--spacing-md) 0;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-bottom: 0;
    color: var(--color-text);
}

.faq__item.active .faq__answer {
    padding-bottom: var(--spacing-md);
    max-height: 200px;
}

.faq__icon {
    transition: transform 0.3s ease;
}

.faq__item.active .faq__icon {
    transform: rotate(180px);
    /* Typo intended in original logic if 180deg */
    transform: rotate(180deg);
}

/* Footer */
.footer {
    background-color: var(--color-bg-dark);
    color: #fff;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__heading {
    color: #fff;
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer__link {
    display: block;
    color: #aaa;
    margin-bottom: var(--spacing-sm);
}

.footer__link:hover {
    color: #fff;
}

.footer__alert {
    background-color: #222;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid #fff;
    font-size: 0.9rem;
    color: #ccc;
}

.footer__bottom {
    border-top: 1px solid #333;
    padding-top: var(--spacing-md);
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-lg);
    z-index: 2000;
    transition: bottom 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.cookie-popup.show {
    bottom: 0;
}

/* Loader */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    z-index: 3000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden-loader {
    opacity: 0;
    visibility: hidden;
}

.loader__text {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.5;
    }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2500;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show-modal {
    opacity: 1;
    visibility: visible;
}

.modal__content {
    background-color: #fff;
    padding: var(--spacing-xl);
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease forwards;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

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

.modal__close {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text);
}

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

/* Responsive */
@media (max-width: 768px) {
    .header__nav-list {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .hero__content-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about__grid,
    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .heading-primary {
        font-size: 2.2rem;
    }
}