/* =============================================
   PROXIMA LENS 2.0.0 - Features Section
   Bento Grid Layout - Premium Design
   ============================================= */

.features {
    padding: var(--space-3xl) 0;
    overflow: hidden;
}

/* =============================================
   Bento Grid Layout
   ============================================= */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(180px, auto);
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

/* =============================================
   Feature Cards - Base
   ============================================= */
.feature-card {
    position: relative;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.03) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 30px var(--primary-glow);
}

.feature-card:hover::before {
    opacity: 1;
}

/* Card Sizes */
.feature-card.large {
    grid-column: span 2;
    grid-row: span 2;
    padding: 36px;
}

.feature-card.wide {
    grid-column: span 2;
}

.feature-card.tall {
    grid-row: span 2;
}

/* =============================================
   Card Content
   ============================================= */
.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(0, 229, 255, 0.05));
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--primary-glow);
}

.feature-card.large .feature-icon {
    width: 72px;
    height: 72px;
    font-size: 2.2rem;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-card.large .feature-title {
    font-size: 1.4rem;
    margin-bottom: 14px;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

.feature-card.large .feature-desc {
    font-size: 1rem;
    line-height: 1.8;
}

/* Badge for special features */
.feature-badge {
    display: inline-flex;
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg-primary);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Stats in large cards */
.feature-stats {
    display: flex;
    gap: 24px;
    margin-top: auto;
    padding-top: 20px;
}

.feature-stat {
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Decorative elements */
.feature-glow {
    position: absolute;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover .feature-glow {
    opacity: 0.5;
}

.feature-card.large .feature-glow {
    width: 200px;
    height: 200px;
    right: -50px;
    bottom: -50px;
}

/* Mini features list */
.mini-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.mini-feature {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .feature-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .feature-card.tall {
        grid-row: span 1;
    }
}

@media (max-width: 640px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .feature-card.large,
    .feature-card.wide {
        grid-column: span 1;
    }

    .feature-card {
        padding: 24px;
    }

    .feature-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .feature-stat {
        flex: 1;
        min-width: 80px;
    }
}