/* Особенности - Современный дизайн */
.arbi-features {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.arbi-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(0, 128, 255, 0.04) 0%, transparent 50%);
    z-index: 0;
}

[data-theme="light"] .arbi-features {
    background: linear-gradient(135deg, var(--bg-primary) 0%, #e6f0ff 100%);
}

[data-theme="light"] .arbi-features::before {
    background: 
        radial-gradient(circle at 10% 20%, rgba(49, 130, 206, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(66, 153, 225, 0.06) 0%, transparent 50%);
}

.arbi-features .container {
    position: relative;
    z-index: 1;
}

/* Модернизированный список */
.features-list-modern {
    max-width: 1000px;
    margin: 60px auto 0;
    position: relative;
}

.features-list-modern::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    opacity: 0.3;
}

.feature-item-modern {
    display: flex;
    align-items: flex-start;
    margin-bottom: 50px;
    position: relative;
    padding-left: 80px;
    animation: fadeInRight 0.6s ease forwards;
    opacity: 0;
}

.feature-item-modern:last-child {
    margin-bottom: 0;
}

/* Нумерация и иконка */
.feature-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    font-size: 1.5em;
    box-shadow: 0 8px 20px rgba(0, 255, 255, 0.3);
    z-index: 2;
    transition: all 0.3s ease;
}

[data-theme="light"] .feature-number {
    box-shadow: 0 8px 20px rgba(49, 130, 206, 0.3);
}

.feature-item-modern:hover .feature-number {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 12px 30px rgba(0, 255, 255, 0.4);
}

[data-theme="light"] .feature-item-modern:hover .feature-number {
    box-shadow: 0 12px 30px rgba(49, 130, 206, 0.4);
}

/* Содержимое фичи */
.feature-content-modern {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 25px 30px;
    flex: 1;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
}

.feature-content-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
    border-radius: 5px 0 0 5px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item-modern:hover .feature-content-modern {
    transform: translateX(10px);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 35px rgba(0, 255, 255, 0.1);
}

.feature-item-modern:hover .feature-content-modern::before {
    opacity: 1;
}

[data-theme="light"] .feature-content-modern {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(49, 130, 206, 0.15);
    box-shadow: 0 5px 20px rgba(49, 130, 206, 0.05);
}

[data-theme="light"] .feature-item-modern:hover .feature-content-modern {
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px rgba(49, 130, 206, 0.1);
}

/* Текст внутри карточки */
.feature-text-modern {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.1em;
    margin: 0;
    position: relative;
    z-index: 1;
}

.feature-text-modern strong {
    color: var(--accent-primary);
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.feature-text-modern strong::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
    transition: width 0.3s ease;
}

.feature-item-modern:hover .feature-text-modern strong::after {
    width: 100%;
}

/* Декоративные элементы */
.feature-decoration {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.05;
    font-size: 4em;
    color: var(--accent-primary);
    z-index: 0;
    transition: all 0.3s ease;
}

.feature-item-modern:hover .feature-decoration {
    opacity: 0.1;
    transform: translateY(-50%) scale(1.1);
    right: -10px;
}

/* Анимации */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Задержки анимации */
.feature-item-modern:nth-child(1) { animation-delay: 0.1s; }
.feature-item-modern:nth-child(2) { animation-delay: 0.2s; }
.feature-item-modern:nth-child(3) { animation-delay: 0.3s; }
.feature-item-modern:nth-child(4) { animation-delay: 0.4s; }
.feature-item-modern:nth-child(5) { animation-delay: 0.5s; }
.feature-item-modern:nth-child(6) { animation-delay: 0.6s; }
.feature-item-modern:nth-child(7) { animation-delay: 0.7s; }

/* Адаптивность */
@media (max-width: 992px) {
    .arbi-features {
        padding: 80px 0;
    }
    
    .features-list-modern {
        max-width: 800px;
    }
    
    .feature-item-modern {
        padding-left: 70px;
    }
    
    .feature-number {
        width: 50px;
        height: 50px;
        font-size: 1.3em;
    }
    
    .feature-content-modern {
        padding: 20px 25px;
    }
    
    .feature-text-modern {
        font-size: 1.05em;
    }
    
    .feature-decoration {
        font-size: 3em;
        right: -15px;
    }
}

@media (max-width: 768px) {
    .arbi-features {
        padding: 60px 0;
    }
    
    .features-list-modern {
        margin-top: 40px;
    }
    
    .features-list-modern::before {
        left: 30px;
    }
    
    .feature-item-modern {
        padding-left: 60px;
        margin-bottom: 40px;
    }
    
    .feature-number {
        width: 45px;
        height: 45px;
        font-size: 1.2em;
    }
    
    .feature-content-modern {
        padding: 18px 20px;
    }
    
    .feature-text-modern {
        font-size: 1em;
    }
    
    .feature-decoration {
        display: none;
    }
    
    .feature-item-modern:hover .feature-content-modern {
        transform: translateX(5px);
    }
}

@media (max-width: 480px) {
    .features-list-modern::before {
        left: 25px;
    }
    
    .feature-item-modern {
        padding-left: 50px;
        margin-bottom: 30px;
    }
    
    .feature-number {
        width: 40px;
        height: 40px;
        font-size: 1.1em;
    }
    
    .feature-content-modern {
        padding: 15px 18px;
        border-radius: 15px;
    }
    
    .feature-text-modern {
        font-size: 0.95em;
        line-height: 1.6;
    }
}