:root {
    --red-primary: #dc2626;
    --red-secondary: #b91c1c;
    --red-dark: #991b1b;
    --red-light: #ef4444;
    --black-primary: #000000;
    --black-secondary: #111111;
    --black-tertiary: #1a1a1a;
    --white-primary: #ffffff;
    --gray-primary: #6b7280;
    --gray-light: #9ca3af;
    --accent-blue: #3b82f6;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--black-primary);
    color: var(--white-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

.brand-font {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
}

.hero-font {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    letter-spacing: -1px;
}

.gradient-bg {
    background: linear-gradient(180deg, var(--black-primary) 0%, var(--black-secondary) 100%);
}

.red-gradient {
    background: linear-gradient(135deg, var(--red-primary) 0%, var(--red-secondary) 100%);
}

.text-red-gradient {
    background: linear-gradient(135deg, var(--red-primary) 0%, var(--red-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(220, 38, 38, 0.3);
    transform: translateY(-2px);
}

.tab-container {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
}

.tab-button {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--gray-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.tab-button:hover {
    color: var(--white-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-button.active {
    color: var(--white-primary);
    background: rgba(220, 38, 38, 0.1);
    border-bottom-color: var(--red-primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out forwards;
    opacity: 0;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out forwards;
    opacity: 0;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.btn-primary {
    background: var(--red-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--red-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.feature-icon:hover {
    background: rgba(220, 38, 38, 0.2);
    transform: scale(1.05);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(220, 38, 38, 0.3);
    transform: translateY(-2px);
}

.navbar {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(0, 0, 0, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.1);
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #374151;
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--red-primary);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: #374151;
    outline: none;
    border-radius: 2px;
    width: 100px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--red-primary);
    cursor: pointer;
    border-radius: 50%;
}

input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--red-primary);
    cursor: pointer;
    border-radius: 50%;
}

.status-badge {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

@media (max-width: 768px) {
    .hero-font {
        font-size: 2.5rem !important;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}