/* ===================================
   DuraEdge - Checkout Page Styles
   =================================== */

/* Checkout Hero Section */
.checkout-hero {
    padding: 140px 0 60px 0;
    background: var(--bg-primary);
    text-align: center;
}

.checkout-header {
    max-width: 700px;
    margin: 0 auto;
}

.checkout-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-title);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.checkout-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Main Checkout Section */
.checkout-section {
    padding: 60px 0 120px 0;
    background: var(--bg-primary);
}

.checkout-grid {
    display: grid;
    grid-template-columns: 500px 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Section Titles */
.section-title-small {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title-centered {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-title);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Pricing Cards */
.pricing-column {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.pricing-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pricing-card:hover {
    border-color: rgba(167, 139, 250, 0.4);
    box-shadow: 0 10px 40px rgba(167, 139, 250, 0.2);
    transform: translateY(-4px);
}

.pricing-card.active {
    border-color: var(--primary);
    box-shadow: 0 15px 50px rgba(167, 139, 250, 0.3);
}

.pricing-card-header {
    padding: 2.5rem 2rem 2rem;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(167, 139, 250, 0.05) 100%);
    position: relative;
}

.plan-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
    color: white;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.plan-badge.enterprise {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.currency {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.contact-sales .amount {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.plan-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

.pricing-card-body {
    padding: 2rem;
}

.plan-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.plan-features li svg {
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 2px;
}

/* Trust Badges */
.trust-badges-checkout {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.trust-item svg {
    color: var(--primary);
    flex-shrink: 0;
}

/* Checkout Form Column */
.checkout-column {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.checkout-form-container {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
}

/* Order Summary */
.order-summary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.order-summary h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.summary-row:last-of-type {
    border-bottom: none;
}

.summary-row.total {
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 2px solid var(--border);
    font-weight: 700;
}

.summary-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.summary-value {
    color: var(--text-primary);
    font-weight: 600;
}

.summary-row.total .summary-label,
.summary-row.total .summary-value {
    font-size: 1.1rem;
    color: var(--primary);
}

.billing-note {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 1rem;
    margin-bottom: 0;
    text-align: center;
}

/* Form Sections */
.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-tertiary);
    box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.1);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-help {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin: 0;
}

.form-error {
    font-size: 0.85rem;
    color: #ef4444;
    margin: 0;
    display: none;
}

.form-error:not(:empty) {
    display: block;
}

/* Stripe Card Element */
.stripe-element {
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.stripe-element:focus-within {
    border-color: var(--primary);
    background: var(--bg-tertiary);
    box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.1);
}

/* Checkbox Group */
.checkbox-group {
    margin-top: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary);
    cursor: pointer;
}

.checkbox-label .link {
    color: var(--primary);
    text-decoration: underline;
    transition: color 0.3s ease;
}

.checkbox-label .link:hover {
    color: var(--primary-light);
}

/* Submit Button */
.btn-full {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

.btn-primary {
    position: relative;
}

#submit-button {
    min-height: 56px;
}

#submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.hidden {
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.secure-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 1rem;
    margin-bottom: 0;
}

.secure-notice svg {
    color: var(--primary);
}

/* Requirements Section */
.requirements-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.requirement-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.requirement-item:hover {
    border-color: rgba(167, 139, 250, 0.4);
    box-shadow: 0 10px 30px rgba(167, 139, 250, 0.15);
    transform: translateY(-4px);
}

.requirement-item svg {
    color: var(--primary);
    margin-bottom: 1rem;
}

.requirement-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.requirement-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* FAQ Section Mini */
.faq-section-mini {
    padding: 80px 0;
    background: var(--bg-primary);
}

.faq-grid-mini {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .checkout-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .checkout-column {
        position: static;
    }
}

@media (max-width: 768px) {
    .checkout-hero {
        padding: 100px 0 40px 0;
    }

    .checkout-section {
        padding: 40px 0 80px 0;
    }

    .pricing-card-header {
        padding: 2rem 1.5rem 1.5rem;
    }

    .pricing-card-body {
        padding: 1.5rem;
    }

    .checkout-form-container {
        padding: 2rem 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .trust-badges-checkout {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .checkout-hero {
        padding: 80px 0 30px 0;
    }

    .checkout-title {
        font-size: 2rem;
    }

    .checkout-subtitle {
        font-size: 1rem;
    }

    .section-title-small {
        font-size: 1.5rem;
    }

    .amount {
        font-size: 2.5rem;
    }

    .plan-features li {
        font-size: 0.9rem;
    }

    .checkout-form-container {
        padding: 1.5rem 1rem;
    }

    .pricing-card-header {
        padding: 1.5rem 1rem 1rem;
    }

    .pricing-card-body {
        padding: 1rem;
    }
}

/* Success/Error Messages */
.payment-message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: none;
}

.payment-message.show {
    display: block;
}

.payment-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
}

.payment-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* Animations for plan updates */
@keyframes pulse-update {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 0 20px rgba(167, 139, 250, 0.3);
    }
    100% {
        transform: scale(1);
    }
}

/* Smooth transition for pricing cards */
.pricing-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:active {
    transform: scale(0.98);
}