:root {
    --bg-main: #FFFFFF;
    --bg-surface: #F8FAFC;
    --bg-surface-hover: #F1F5F9;
    --accent: #1D4ED8;
    --accent-light: #3B82F6;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border-color: #E2E8F0;
    --nav-height: 80px;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --section-padding: 120px 0;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

button {
    font: inherit;
}

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

.navbar {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    height: 60px;
    display: flex;
    align-items: center;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 0 32px;
}

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

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.nav-links {
    display: none;
    gap: 16px;
    flex-wrap: nowrap;
}

@media (min-width: 992px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active,
.nav-links a.is-active {
    color: var(--accent-light);
}

.lang-switch {
    position: relative;
    cursor: pointer;
    margin-right: 16px;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    right: 0;
    background: #fff;
    border-radius: 12px;
    padding: 8px 0;
    min-width: 120px;
    display: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.lang-dropdown.show {
    display: block;
}

.lang-dropdown [data-switch-lang] {
    display: block;
    width: 100%;
    padding: 8px 16px;
    font-size: 13px;
    color: var(--text-primary);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
}

.lang-dropdown [data-switch-lang]:hover,
.lang-dropdown [data-switch-lang].is-current {
    background: var(--bg-surface-hover);
    color: var(--accent);
}

.fixed-hamburger {
    position: fixed;
    top: 32px;
    right: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    z-index: 101;
    box-shadow: 0 4px 15px rgba(29, 78, 216, 0.3);
    transition: transform 0.3s;
    border: none;
    padding: 0;
    appearance: none;
}

.fixed-hamburger:hover {
    transform: scale(1.05);
}

.fixed-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: white;
    margin: 2px 0;
    transition: 0.3s;
}

.fixed-hamburger.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.fixed-hamburger.is-open span:nth-child(2) {
    opacity: 0;
}

.fixed-hamburger.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.side-menu-overlay {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    max-width: 100vw;
    height: 100vh;
    background: var(--accent);
    z-index: 99;
    display: flex;
    flex-direction: column;
    padding: 100px 40px 40px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
}

.side-menu-overlay.active,
.side-menu-overlay.is-open {
    transform: translateX(0);
}

.side-menu-overlay .menu-title {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 32px;
    text-transform: uppercase;
}

.side-menu-overlay a {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
    display: flex;
    align-items: center;
}

.side-menu-overlay a::before {
    content: '-';
    margin-right: 12px;
    opacity: 0.5;
}

.side-menu-overlay a:hover {
    opacity: 0.8;
    transform: translateX(5px);
}

section {
    position: relative;
    z-index: 1;
    padding: var(--section-padding);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 15px rgba(29, 78, 216, 0.2);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.btn-outline {
    background: #fff;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: var(--bg-surface);
}

footer,
.footer {
    padding: 80px 0 40px;
    background: #fff;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 64px;
}

.footer-brand {
    min-width: 250px;
}

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

.footer-brand p {
    color: var(--text-secondary);
    font-size: 13px;
    max-width: 220px;
    line-height: 1.8;
}

.footer-col h5 {
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col ul li {
    margin-bottom: 16px;
}

.footer-col a {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
}

.footer-col a:hover {
    color: var(--accent-light);
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}