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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f8fafc;
    background-image: radial-gradient(at 0% 0%, rgba(30, 64, 175, 0.05) 0, transparent 50%), 
                      radial-gradient(at 50% 0%, rgba(139, 92, 246, 0.05) 0, transparent 50%);
    min-height: 100vh;
    padding: 2rem 1rem;
    color: #1e293b;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease;
}

.header-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.main-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #073260 0%, #408ad9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.25rem;
    color: #666;
    font-weight: 300;
}

/* Costs Grid */
.costs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Cost Cards */
.cost-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease;
}

.cost-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #073260 0%, #408ad9 100%);
}

.cost-card.development::before {
    background: linear-gradient(90deg, #073260 0%, #408ad9 100%);
}

.cost-card.maintenance::before {
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
}

.cost-card.implementation::before {
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
}

.cost-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Card Icon */
.card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    padding: 15px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.development .card-icon {
    background: linear-gradient(135deg, #073260 0%, #408ad9 100%);
}

.maintenance .card-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.implementation .card-icon {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.card-icon svg {
    width: 100%;
    height: 100%;
    color: white;
}

/* Card Title */
.card-title {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2d3748;
}

/* Price Tag */
.price-tag {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 15px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: #667eea;
    vertical-align: super;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #2d3748;
    margin: 0 0.25rem;
}

.period {
    font-size: 1.25rem;
    color: #718096;
    font-weight: 400;
}

/* Features List */
.features-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
    transition: all 0.2s ease;
}

.features-list li:hover {
    transform: translateX(5px);
}

.check-icon {
    width: 20px;
    height: 20px;
    min-width: 20px;
    color: #48bb78;
    margin-right: 0.75rem;
    margin-top: 2px;
}

.features-list span {
    color: #4a5568;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Annual Note */
.annual-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, #fef5e7 0%, #fdebd0 100%);
    border-radius: 10px;
    border-left: 4px solid #f39c12;
}

.annual-note p {
    margin: 0.25rem 0;
    color: #2d3748;
}

.discount {
    font-size: 0.9rem;
    color: #e67e22;
    font-weight: 600;
}

/* Optional Badge */
.optional-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

/* Summary Section */
.summary-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease;
}

.summary-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.summary-item {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.summary-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.summary-label {
    font-size: 1rem;
    color: #718096;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.summary-detail {
    font-size: 0.9rem;
    color: #a0aec0;
}

/* Notes Section */
.notes-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1.2s ease;
}

.notes-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #2d3748;
}

.notes-section ul {
    list-style: none;
}

.notes-section li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
    line-height: 1.6;
}

.notes-section li:last-child {
    border-bottom: none;
}

.notes-section strong {
    color: #667eea;
    font-weight: 600;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: white;
    font-size: 0.9rem;
    animation: fadeIn 1.5s ease;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .costs-grid {
        grid-template-columns: 1fr;
    }

    .amount {
        font-size: 2.5rem;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .header-content {
        padding: 1.5rem;
    }

    .cost-card {
        padding: 1.5rem;
    }

    .summary-section,
    .notes-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 1rem 0.5rem;
    }

    .main-title {
        font-size: 1.75rem;
    }

    .amount {
        font-size: 2rem;
    }

    .card-title {
        font-size: 1.5rem;
    }

    .summary-title {
        font-size: 1.5rem;
    }
}