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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0a0a0f;
    color: #ffffff;
    line-height: 1.5;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(124,58,237,0.15) 0%, rgba(0,0,0,0) 60%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
    padding: 8px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
}

.logo span span {
    background: linear-gradient(135deg, #7c3aed, #2563eb);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.btn-vk {
    display: flex;
    width: 100%;
    margin-top: 10px;
    box-sizing: border-box;
    align-items: center;
    gap: 16px;
    background: rgba(65, 131, 218, 0.897);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 80px;
    padding: 10px 20px;
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-google:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
}


/* ===== АВТОРИЗАЦИЯ ===== */
/* ============================================
   АВТОРИЗАЦИЯ (ВХОД И РЕГИСТРАЦИЯ)
   ============================================ */
.auth-section {
    background: rgba(255,255,255,0.04);
    border-radius: 28px;
    padding: 28px 32px;
    margin-bottom: 30px;
    border: 1px solid rgba(255,255,255,0.06);
}

.auth-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding-bottom: 14px;
}

.auth-tab {
    background: transparent;
    border: none;
    padding: 8px 20px;
    border-radius: 30px;
    color: #9ca3af;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
}

.auth-tab.active {
    background: linear-gradient(135deg, #7c3aed, #2563eb);
    color: white;
}

.auth-form {
    display: none;
}
.auth-form.active {
    display: block;
}

.auth-form h3 {
    font-size: 20px;
    margin-bottom: 18px;
    font-weight: 600;
}

.auth-form .form-group {
    margin-bottom: 16px;
}

.auth-form .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #cbd5e1;
    margin-bottom: 4px;
}

.auth-form .form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    color: white;
    font-size: 15px;
}

.auth-form .form-group input:focus {
    outline: none;
    border-color: #7c3aed;
}

.auth-message {
    margin-top: 14px;
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 14px;
    display: none;
}

.auth-message.success {
    display: block;
    background: rgba(34,197,94,0.12);
    color: #4ade80;
}

.auth-message.error {
    display: block;
    background: rgba(248,113,113,0.10);
    color: #f87171;
}

/* Вкладки */
.tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    background: rgba(255,255,255,0.03);
    padding: 4px;
    border-radius: 60px;
    width: fit-content;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    border: none;
    border-radius: 60px;
    color: #a1a1aa;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: linear-gradient(135deg, #7c3aed, #2563eb);
    color: white;
    box-shadow: 0 4px 15px rgba(124,58,237,0.3);
}

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

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

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

/* Карточка */
.card {
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 32px;
    padding: 40px;
    margin-bottom: 48px;
}

.card-badge {
    display: inline-block;
    background: rgba(124,58,237,0.2);
    color: #a78bfa;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

.card-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, #a1a1aa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.card-desc {
    color: #a1a1aa;
    font-size: 16px;
    margin-bottom: 32px;
}

/* Формы */
.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: #d4d4d8;
}

.input-group textarea,
.input-group input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    color: white;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.input-group textarea:focus,
.input-group input:focus {
    outline: none;
    border-color: #7c3aed;
    background: rgba(124,58,237,0.05);
}

/* Кнопки */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #7c3aed, #2563eb);
    border: none;
    border-radius: 100px;
    padding: 14px 32px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: scale(0.98);
    box-shadow: 0 8px 25px rgba(124,58,237,0.4);
}

/* Область загрузки */
.upload-area {
    background: rgba(255,255,255,0.03);
    border: 2px dashed rgba(255,255,255,0.15);
    border-radius: 24px;
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 24px;
}

.upload-area:hover {
    border-color: #7c3aed;
    background: rgba(124,58,237,0.05);
}

.upload-area svg {
    color: #a1a1aa;
    margin-bottom: 16px;
}

.upload-area p {
    color: #a1a1aa;
    font-size: 14px;
}

.upload-area span {
    color: #7c3aed;
    cursor: pointer;
}

.upload-area input {
    display: none;
}

/* Результат */
.result-card {
    margin-top: 32px;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.05);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 14px;
    color: #a1a1aa;
}

.btn-icon {
    background: rgba(255,255,255,0.05);
    border: none;
    border-radius: 40px;
    padding: 8px 16px;
    color: white;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    background: rgba(255,255,255,0.1);
}

.result-card img,
.result-card video {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 16px;
}

/* Преимущества */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.feature-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    padding: 24px;
    text-align: center;
    transition: all 0.2s ease;
}

.feature-item:hover {
    background: rgba(255,255,255,0.05);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: #a1a1aa;
}

/* Адаптив */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    
    .card {
        padding: 24px;
    }
    
    .card-title {
        font-size: 28px;
    }
    
    .tabs {
        width: 100%;
        justify-content: stretch;
    }
    
    .tab-btn {
        flex: 1;
        justify-content: center;
        font-size: 13px;
        padding: 10px 16px;
    }
    
    .btn-primary {
        width: 100%;
        justify-content: center;
    }
}