:root {
    --bg-primary: #0f0a1a;
    --bg-secondary: #1a1430;
    --text-primary: #ffffff;
    --text-secondary: #d0c2ee;
    --accent: #7c3aed;
    --accent-hover: #6d28d9;
    --header-height: 80px;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    --card-bg: rgba(30, 20, 50, 0.5);
}

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

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    z-index: -1;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    opacity: 0.8;
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    background-color: rgba(15, 10, 26, 0.8);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 66px;
    height: 66px;
    object-fit: contain;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.logo-kodari, .logo-id {
    cursor: pointer;
    transition: all 0.2s ease;
}

.logo-kodari:hover, .logo-id:hover {
    opacity: 0.8;
}

.logo-id {
    color: var(--accent);
}

.auth-container {
    display: flex;
    align-items: center;
}

.login-button {
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.login-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.user-info:hover {
    transform: translateY(-2px);
}

.hidden {
    display: none;
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    object-fit: contain;
}

.username {
    color: var(--text-secondary);
    font-weight: 500;
}

.main {
    margin-top: var(--header-height);
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero {
    max-width: 700px;
    margin-bottom: 4rem;
    padding: 3rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cta-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.cta-button.logged-in {
    background-color: var(--accent-hover);
}

.features {
    display: flex;
    gap: 2rem;
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
}

.feature {
    flex: 1;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: inline-block;
    color: var(--accent);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    font-weight: 600;
}

.feature p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.footer {
    text-align: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
    background-color: rgba(15, 10, 26, 0.8);
    backdrop-filter: blur(10px);
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .features {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .header-container {
        padding: 0 1rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 2rem;
    }
}