/* ==========================================================================
   Kola Billing Client - Premium Design System for Pricing & Subscriptions
   ========================================================================== */

:root {
    --kb-primary: #3b5bdb;
    --kb-primary-hover: #2f4ac4;
    --kb-primary-soft: #eef2ff;
    --kb-primary-ring: rgba(59, 91, 219, 0.2);
    --kb-navy: #0c1c38;
    --kb-slate-dark: #1e293b;
    --kb-slate-muted: #64748b;
    --kb-slate-light: #94a3b8;
    --kb-surface: #ffffff;
    --kb-bg-soft: #f8fafc;
    --kb-line: #e2e8f0;
    --kb-line-strong: #cbd5e1;
    --kb-radius-sm: 8px;
    --kb-radius-md: 14px;
    --kb-radius-lg: 20px;
    --kb-radius-xl: 26px;
    --kb-radius-pill: 9999px;
    --kb-shadow-card: 0 12px 36px -4px rgba(12, 28, 56, 0.07), 0 4px 12px -2px rgba(12, 28, 56, 0.03);
    --kb-shadow-card-hover: 0 24px 56px -8px rgba(12, 28, 56, 0.12), 0 6px 16px -2px rgba(12, 28, 56, 0.05);
    --kb-shadow-featured: 0 20px 48px -6px rgba(59, 91, 219, 0.16), 0 0 0 1px rgba(59, 91, 219, 0.08);
}

/* ==========================================================================
   Homepage Pricing Section (.kb-pricing)
   ========================================================================== */

.kb-pricing {
    position: relative;
    padding: 88px 0 108px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    overflow: hidden;
}

.kb-pricing-inner {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    padding: 0 24px;
    box-sizing: border-box;
}

.kb-pricing-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
}

.kb-pricing-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--kb-primary-soft);
    color: var(--kb-primary);
    border: 1px solid rgba(59, 91, 219, 0.15);
    padding: 6px 16px;
    border-radius: var(--kb-radius-pill);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.kb-pricing-title {
    font-size: 42px;
    font-weight: 850;
    color: var(--kb-navy);
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin: 0 0 16px;
}

.kb-pricing-gradient-text {
    background: linear-gradient(135deg, var(--kb-primary) 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kb-pricing-subtitle {
    color: var(--kb-slate-muted);
    font-size: 17px;
    line-height: 1.6;
    margin: 0 auto;
}

/* Currency & Period Controls */
.pricing-controls-wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0 auto 44px;
    user-select: none;
}

.pricing-currency-tabs,
.pricing-period-tabs {
    display: inline-flex;
    align-items: center;
    background: #f1f5f9;
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-pill);
    padding: 4px;
    gap: 4px;
    box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.currency-tab-btn,
.pricing-period-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 38px;
    min-width: 88px;
    padding: 0 16px;
    border: none;
    border-radius: var(--kb-radius-pill);
    background: transparent;
    color: var(--kb-slate-muted);
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.currency-tab-btn:hover,
.pricing-period-btn:hover {
    color: var(--kb-navy);
    background: rgba(255, 255, 255, 0.6);
}

.currency-tab-btn.is-active,
.pricing-period-btn.is-active {
    background: var(--kb-navy);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(12, 28, 56, 0.18);
}

/* ==========================================================================
   Pricing Cards Container & Modern Card Wrapper
   ========================================================================== */

#pricingCardsContainer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card-wrapper {
    position: relative;
    background: #ffffff;
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-xl);
    padding: 40px 32px 36px;
    width: 100%;
    max-width: 440px;
    box-sizing: border-box;
    box-shadow: var(--kb-shadow-card);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.pricing-card-wrapper:hover {
    transform: translateY(-4px);
    box-shadow: var(--kb-shadow-card-hover);
    border-color: var(--kb-line-strong);
}

.pricing-card-wrapper.is-popular {
    border: 2px solid var(--kb-primary);
    box-shadow: var(--kb-shadow-featured);
    background: radial-gradient(circle at 50% 0%, rgba(59, 91, 219, 0.05) 0%, transparent 65%), #ffffff;
}

.pricing-card-badge {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: var(--kb-radius-pill);
    background: var(--kb-primary-soft);
    color: var(--kb-primary);
    border: 1px solid rgba(59, 91, 219, 0.2);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.pricing-card-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--kb-navy);
    margin: 0 0 6px;
    letter-spacing: -0.015em;
    line-height: 1.2;
}

.pricing-card-range {
    font-size: 14px;
    font-weight: 500;
    color: var(--kb-slate-muted);
    margin: 0 0 24px;
    line-height: 1.5;
}

/* Price Box */
.pricing-card-price-box {
    background: var(--kb-bg-soft);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--kb-radius-md);
    padding: 22px 24px;
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.price-number-row {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.price-currency {
    font-size: 22px;
    font-weight: 800;
    color: var(--kb-primary);
    line-height: 1;
}

.price-amount {
    font-size: 46px;
    font-weight: 900;
    color: var(--kb-navy);
    line-height: 1;
    letter-spacing: -0.03em;
}

.price-period {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--kb-slate-muted);
    margin-top: 4px;
}

.price-annual-note {
    font-size: 12px;
    font-weight: 700;
    color: #10b981;
    margin-top: 2px;
}

/* Features */
.pricing-card-features-label {
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--kb-slate-light);
    margin-bottom: 14px;
}

.pricing-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
    display: flex;
    flex-direction: column;
    gap: 13px;
    flex-grow: 1;
}

.pricing-card-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14.5px;
    color: #334155;
    line-height: 1.45;
}

.pricing-card-features .feature-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--kb-primary-soft);
    color: var(--kb-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}

/* CTA Button */
.pricing-card-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 15px 22px;
    background: var(--kb-primary);
    color: #ffffff !important;
    border-radius: var(--kb-radius-md);
    font-size: 15px;
    font-weight: 750;
    text-decoration: none !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px rgba(59, 91, 219, 0.28);
    box-sizing: border-box;
}

.pricing-card-cta-btn:hover {
    background: var(--kb-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(59, 91, 219, 0.36);
    color: #ffffff !important;
}

.pricing-card-cta-btn:active {
    transform: translateY(0);
}

/* Loading & Error States */
.kb-pricing-loading {
    text-align: center;
    padding: 60px 20px;
}

.kb-pricing-loading p {
    margin-top: 18px;
    color: var(--kb-slate-muted);
    font-size: 15px;
    font-weight: 500;
}

.kb-pricing-error {
    text-align: center;
    padding: 40px 20px;
}

.kb-pricing-error-card {
    max-width: 540px;
    margin: 0 auto;
    background: #f8fafc;
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-lg);
    padding: 32px 28px;
}

.kb-pricing-error-card h3 {
    color: var(--kb-navy);
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 10px;
}

.kb-pricing-error-card p {
    color: var(--kb-slate-muted);
    margin-bottom: 20px;
    font-size: 15px;
}

.kb-pricing-error-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--kb-primary);
    color: #fff !important;
    border-radius: var(--kb-radius-md);
    font-weight: 700;
    text-decoration: none !important;
}

/* Spinner */
.spinner-border {
    display: inline-block;
    width: 2.75rem;
    height: 2.75rem;
    vertical-align: text-bottom;
    border: 0.22em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

.text-primary {
    color: var(--kb-primary) !important;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Package Configuration Page & Order Card Styling
   ========================================================================== */

.package-config-hero {
    background: linear-gradient(135deg, #0c1c38 0%, #1e3a8a 100%) !important;
    padding: 44px 0 36px !important;
    position: relative;
    overflow: hidden;
}

.package-config-hero h1 {
    color: #ffffff;
    font-size: 38px;
    font-weight: 850;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.package-config-hero p {
    color: #94a3b8;
    font-size: 16px;
    margin: 0;
}

.package-config-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #ffffff !important;
    text-decoration: none !important;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 13.5px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    padding: 6px 14px;
    border-radius: var(--kb-radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: background 0.2s ease, transform 0.2s ease;
}

.package-config-back-btn:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateX(-2px);
}

/* Package Options */
.package-option {
    cursor: pointer;
    border: 1.5px solid var(--kb-line);
    border-radius: var(--kb-radius-md);
    padding: 12px;
    background: #ffffff;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.package-option:hover {
    border-color: var(--kb-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 91, 219, 0.08);
}

.package-option[data-active="true"] {
    border-color: var(--kb-primary) !important;
    background: var(--kb-primary-soft) !important;
    box-shadow: 0 0 0 2px var(--kb-primary-ring) !important;
}

/* Period Options */
.period-option {
    cursor: pointer;
    border: 1.5px solid var(--kb-line);
    border-radius: var(--kb-radius-md);
    padding: 14px 18px;
    background: #ffffff;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.period-option:hover {
    border-color: var(--kb-primary);
}

.period-option.selected {
    border-color: var(--kb-primary) !important;
    background: var(--kb-primary-soft) !important;
    box-shadow: 0 0 0 2px var(--kb-primary-ring) !important;
}

.period-option.selected .period-radio {
    border-color: var(--kb-primary) !important;
}

.period-option.selected .period-radio::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--kb-primary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Configurator Form inputs */
#currencySelect {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--kb-line);
    border-radius: var(--kb-radius-md);
    font-size: 15px;
    font-weight: 600;
    color: var(--kb-navy);
    background: #ffffff;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#currencySelect:focus {
    border-color: var(--kb-primary);
    box-shadow: 0 0 0 3px var(--kb-primary-ring);
    outline: none;
}

/* Unified Summary Card */
.kb-summary-card {
    background: #ffffff;
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-xl);
    padding: 32px 28px;
    box-shadow: var(--kb-shadow-card);
}

.kb-summary-card h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--kb-navy);
    margin: 0 0 20px;
    letter-spacing: -0.01em;
}

.kb-summary-pkg-header {
    background: var(--kb-primary-soft);
    border: 1px solid rgba(59, 91, 219, 0.15);
    border-radius: var(--kb-radius-md);
    padding: 14px 18px;
    margin-bottom: 20px;
}

.kb-summary-pkg-header .pkg-kicker {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--kb-primary);
    margin-bottom: 4px;
}

.kb-summary-pkg-header .pkg-name {
    font-size: 17px;
    font-weight: 800;
    color: var(--kb-navy);
}

.kb-summary-breakdown {
    background: var(--kb-bg-soft);
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-md);
    padding: 16px 18px;
    margin-bottom: 20px;
}

.kb-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
}

.kb-summary-row:not(:last-child) {
    border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

.kb-summary-row .row-label {
    color: var(--kb-slate-muted);
}

.kb-summary-row .row-value {
    font-weight: 700;
    color: var(--kb-navy);
}

/* Discount Code Input Box */
.kb-discount-box {
    background: var(--kb-bg-soft);
    border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius-md);
    padding: 16px 18px;
    margin-bottom: 20px;
}

.kb-discount-box label {
    display: block;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--kb-slate-muted);
    margin-bottom: 8px;
}

.kb-discount-input-group {
    display: flex;
    gap: 8px;
}

#discountCodeInput {
    flex: 1;
    padding: 10px 14px;
    background: #ffffff;
    border: 1.5px solid var(--kb-line);
    border-radius: var(--kb-radius-sm);
    color: var(--kb-navy);
    font-size: 14px;
    font-weight: 600;
    outline: none;
    transition: border-color 0.2s ease;
}

#discountCodeInput:focus {
    border-color: var(--kb-primary);
    box-shadow: 0 0 0 2px var(--kb-primary-ring);
}

#applyDiscountBtn {
    padding: 10px 18px;
    background: var(--kb-navy);
    color: #ffffff;
    border: none;
    border-radius: var(--kb-radius-sm);
    font-size: 13.5px;
    font-weight: 750;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

#applyDiscountBtn:hover {
    background: #1e293b;
    transform: translateY(-1px);
}

/* Summary Total Box */
.kb-summary-total-box {
    background: linear-gradient(135deg, var(--kb-primary-soft) 0%, #ffffff 100%);
    border: 1.5px solid rgba(59, 91, 219, 0.2);
    border-radius: var(--kb-radius-md);
    padding: 20px 22px;
    margin-bottom: 22px;
}

.kb-summary-total-box .total-label {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--kb-primary);
    margin-bottom: 6px;
}

.kb-summary-total-box .total-amount-row {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.kb-summary-total-box #summaryCurrency {
    font-size: 20px;
    font-weight: 800;
    color: var(--kb-primary);
}

.kb-summary-total-box #summaryTotalPrice {
    font-size: 42px;
    font-weight: 900;
    color: var(--kb-navy);
    line-height: 1;
    letter-spacing: -0.02em;
}

.kb-summary-total-box #summaryPeriodText {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--kb-slate-muted);
    margin-top: 4px;
}

/* Add to cart button */
#addToCartBtn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 16px 24px;
    background: var(--kb-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--kb-radius-md);
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(59, 91, 219, 0.3);
}

#addToCartBtn:hover {
    background: var(--kb-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 91, 219, 0.4);
}

#addToCartBtn:active {
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .kb-pricing {
        padding: 60px 0 80px;
    }

    .kb-pricing-title {
        font-size: 32px;
    }

    .pricing-card-wrapper {
        max-width: 100% !important;
        padding: 32px 24px 28px;
    }

    .price-amount {
        font-size: 38px;
    }
}