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

:root {
    --header-h: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #000;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

html,
body {
    height: 100%;
}

/* Header Critical Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    height: 80px;
    gap: 32px;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    display: block;
    height: 55px;
    width: auto;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    justify-content: center;
}

.nav-link {
    text-decoration: none;
    color: #1a1a1a;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 16px;
    padding: 10px 16px;
    border-radius: 10px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.cta-button {
    background: #000;
    color: #fff;
    border: 1px solid #000;
    padding: 11px 24px;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    text-decoration: none;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    white-space: nowrap;
}

.login-link {
    text-decoration: none;
    color: #1a1a1a;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 15px;
    padding: 10px 18px;
    border-radius: 10px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    white-space: nowrap;
}

/* Hero Critical Styles */
.hero {
    position: relative;
    height: 100vh;
    min-height: 100svh;
    overflow: hidden;
    padding-bottom: 60px;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video video,
.hero-video .hero-placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    transition: opacity 0.5s ease;
}

.hero-video::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
    height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--header-h) 60px 80px;
}

.hero-content {
    max-width: 85vw;
    color: #fff;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
    text-align: center;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    margin-bottom: 40px;
    line-height: 1.1;
    color: #fff;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 50px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.hero-cta {
    padding: 18px 36px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: inline-block;
    text-decoration: none;
    text-align: center;
    min-width: 180px;
}

.hero-cta.primary {
    background: #fff;
    color: #000;
    border: 1px solid #e5e5e5;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    margin: 0;
}

.language-switcher {
    position: relative;
}

.language-switcher-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid #000;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #000;
}

.language-switcher-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    list-style: none;
    padding: 6px;
    margin: 0;
    min-width: 150px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
}