/* =========================================
   Product Card V4.1 (Clean Tech Refined)
   ========================================= */

.product-card-v4 {
    background: #ffffff;
    border-radius: 24px;
    padding: 2rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid #e2e8f0;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.product-card-v4:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.1);
    border-color: #cbd5e1;
}

/* Featured Card Style - Subtle & Elegant */
.product-card-v4.featured {
    border: 2px solid #3b82f6; /* Solid Blue Border */
    box-shadow: 0 25px 50px -12px rgba(59, 130, 246, 0.25);
    background: #ffffff; /* Pure White */
}

.product-card-v4.featured:hover {
    box-shadow: 0 30px 60px -12px rgba(59, 130, 246, 0.35);
    transform: translateY(-8px);
}

/* Header */
.v4-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.v4-title-area h5 {
    font-size: 1.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.35rem;
    letter-spacing: -0.5px;
}

.v4-title-area p {
    font-size: 0.85rem;
    color: #64748b;
    margin: 0;
    font-weight: 500;
}

.v4-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: #f1f5f9;
    color: #64748b;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.product-card-v4.featured .v4-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.product-card-v4:hover .v4-icon {
    transform: rotate(10deg) scale(1.05);
}

/* Specs Grid - Clean List Style */
.v4-specs {
    display: grid;
    grid-template-columns: 1fr; /* Single column for better readability */
    gap: 0.85rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.spec-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: #475569;
    padding: 0; /* Removed padding */
    background: transparent; /* Removed background */
    border-radius: 0;
    transition: color 0.2s;
}

.spec-item i {
    width: 24px; /* Fixed width for alignment */
    text-align: center;
    margin-right: 12px;
    font-size: 1rem;
    color: #94a3b8; /* Muted icon color */
    transition: color 0.3s;
}

.product-card-v4.featured .spec-item i {
    color: #3b82f6; /* Blue icons for featured */
}

.product-card-v4:hover .spec-item i {
    color: #0f172a; /* Darker on hover */
}

/* Bottom Area: Price + Button */
.v4-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid #f1f5f9;
    margin-top: auto;
}

.v4-price {
    display: flex;
    align-items: baseline;
    line-height: 1;
}

.v4-price .currency {
    font-size: 1rem;
    font-weight: 600;
    color: #0f172a;
    margin-right: 2px;
}

.v4-price .amount {
    font-size: 2rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -1px;
}

.product-card-v4.featured .v4-price .amount {
    color: #2563eb; /* Blue price for featured */
}

.v4-price .period {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-left: 4px;
    font-weight: 500;
}

.v4-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: #f8fafc;
    color: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-decoration: none;
    font-size: 1.1rem;
}

.product-card-v4.featured .v4-btn {
    background: #2563eb;
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.v4-btn:hover {
    transform: scale(1.1);
    background: #0f172a;
    color: #fff;
}

.product-card-v4.featured .v4-btn:hover {
    background: #1d4ed8;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

/* Badge */
.v4-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #0f172a;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 50px;
    box-shadow: 0 4px 10px -2px rgba(0, 0, 0, 0.2);
    z-index: 2;
    white-space: nowrap;
    letter-spacing: 0.5px;
}

.product-card-v4.featured .v4-badge {
    background: linear-gradient(135deg, #2563eb, #4f46e5); /* Blue gradient */
}