/**
 * TalkStock Pricing Page
 * ======================
 * Marketing-style pricing page with plan cards, comparison table, and FAQ.
 * Uses brand-system.css design tokens (v2.0 --color-* semantic tokens).
 * Relies on legal.css for .legal-header, .legal-lang-*, .legal-footer* classes.
 */

/* ==================== Header Login Button ==================== */
.pricing-header-login {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.15s;
}

.pricing-header-login:hover {
    color: var(--color-accent-hover);
}

.pricing-header-login svg {
    flex-shrink: 0;
}

.pricing-header-logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

/* ==================== Hero Section ==================== */
.pricing-hero {
    text-align: center;
    padding: 100px 24px 40px;
    background: linear-gradient(
        180deg,
        var(--color-bg-secondary) 0%,
        var(--color-bg-page) 100%
    );
}

.pricing-hero-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 16px;
}

.pricing-hero-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ==================== Billing Toggle ==================== */
.pricing-toggle-wrapper {
    display: flex;
    justify-content: center;
    padding: 0 24px 40px;
}

.pricing-toggle {
    display: inline-flex;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: var(--brand-radius-full, 9999px);
    padding: 4px;
    gap: 2px;
}

.pricing-toggle-btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--brand-radius-full, 9999px);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.pricing-toggle-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-hover);
}

.pricing-toggle-btn.active {
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-sm);
}

.pricing-toggle-btn.active:hover {
    background: var(--color-accent-hover);
}

/* ==================== Plan Cards Container ==================== */
.pricing-cards-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 64px;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 340px));
    gap: 24px;
    align-items: start;
    justify-content: center;
}

/* ==================== Individual Plan Card ==================== */
.pricing-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: var(--brand-radius-lg, 20px);
    padding: 32px 28px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Featured Card (Pro) */
.pricing-card--featured {
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-accent);
}

.pricing-card--featured:hover {
    box-shadow: 0 12px 32px rgba(249, 115, 22, 0.2), 0 4px 8px rgba(249, 115, 22, 0.1);
}

/* Most Popular Badge */
.pricing-card-badge {
    position: absolute;
    top: -13px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: var(--color-text-on-accent);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: var(--brand-radius-full, 9999px);
    white-space: nowrap;
    letter-spacing: 0.02em;
}

/* Card Header */
.pricing-card-header {
    margin-bottom: 24px;
}

.pricing-card-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.pricing-card-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Card Price */
.pricing-card-price-block {
    margin-bottom: 24px;
    min-height: 72px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.pricing-card-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.pricing-card-currency {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.pricing-card-amount {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
}

.pricing-card-period {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-left: 2px;
}

.pricing-card-tax-note {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.pricing-card-original {
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: line-through;
    margin-top: 4px;
}

.pricing-card-save {
    display: inline-block;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: var(--brand-radius-full, 9999px);
    margin-top: 6px;
}

.pricing-card-price-free {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    line-height: 1;
}

.pricing-card-price-custom {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

/* Card Features */
.pricing-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    flex: 1;
}

.pricing-card-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
    padding: 6px 0;
}

.pricing-card-features li svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-success);
    margin-top: 1px;
}

/* CTA Button */
.pricing-cta-btn {
    display: block;
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: var(--brand-radius-md, 12px);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s ease;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-sm);
}

.pricing-cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-accent);
}

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

/* Outline CTA (Free plan) */
.pricing-cta-btn--outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    box-shadow: none;
}

.pricing-cta-btn--outline:hover {
    background: var(--color-accent-subtle);
    box-shadow: none;
}

/* Secondary CTA (Enterprise) */
.pricing-cta-btn--secondary {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
    box-shadow: none;
    border: 1px solid var(--color-border-default);
}

.pricing-cta-btn--secondary:hover {
    background: var(--color-bg-active);
    box-shadow: none;
}

/* ==================== Feature Comparison Section ==================== */
.pricing-comparison-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px 64px;
}

.pricing-comparison-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.pricing-comparison-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--brand-radius-lg, 20px);
    border: 1px solid var(--color-border-default);
    background: var(--color-bg-elevated);
}

.pricing-comparison {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.pricing-comparison thead th {
    position: sticky;
    top: 0;
    background: var(--color-bg-secondary);
    padding: 16px 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: center;
    border-bottom: 1px solid var(--color-border-default);
    white-space: nowrap;
}

.pricing-comparison thead th:first-child {
    text-align: left;
}

.pricing-comparison tbody td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--color-border-subtle);
    text-align: center;
    color: var(--color-text-secondary);
}

.pricing-comparison tbody td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap;
}

.pricing-comparison tbody tr:last-child td {
    border-bottom: none;
}

.pricing-comparison tbody tr:hover td {
    background: var(--color-bg-hover);
}

.pricing-comparison .comparison-unlimited {
    color: var(--color-accent);
    font-weight: 600;
}

.pricing-comparison .comparison-none {
    color: var(--color-text-muted);
}

.pricing-comparison .comparison-value {
    font-weight: 500;
    color: var(--color-text-primary);
}

/* ==================== FAQ Section ==================== */
.pricing-faq-section {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.pricing-faq-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.pricing-faq-list {
    display: flex;
    flex-direction: column;
}

.pricing-faq-item {
    border-bottom: 1px solid var(--color-border-default);
}

.pricing-faq-item:last-child {
    border-bottom: none;
}

.pricing-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
    font-family: inherit;
    text-align: left;
    gap: 16px;
    transition: color 0.15s;
}

.pricing-faq-question:hover {
    color: var(--color-accent);
}

.pricing-faq-chevron {
    flex-shrink: 0;
    color: var(--color-text-muted);
    transition: transform 0.3s ease, color 0.15s;
}

.pricing-faq-item.open .pricing-faq-chevron {
    transform: rotate(180deg);
    color: var(--color-accent);
}

.pricing-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 0 0 0;
}

.pricing-faq-item.open .pricing-faq-answer {
    max-height: 200px;
    padding: 0 0 20px 0;
}

.pricing-faq-answer p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.pricing-faq-answer a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.pricing-faq-answer a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* ==================== Pricing Footer ==================== */
.pricing-footer {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== Dark Theme ==================== */
[data-theme="dark"] .pricing-hero {
    background: linear-gradient(
        180deg,
        var(--color-bg-secondary) 0%,
        var(--color-bg-page) 100%
    );
}

[data-theme="dark"] .pricing-toggle {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-default);
}

[data-theme="dark"] .pricing-toggle-btn:hover {
    background: var(--color-bg-hover);
}

[data-theme="dark"] .pricing-card {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-default);
}

[data-theme="dark"] .pricing-card:hover {
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .pricing-card--featured {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-accent);
}

[data-theme="dark"] .pricing-card--featured:hover {
    box-shadow: 0 12px 32px rgba(251, 146, 60, 0.15), 0 4px 8px rgba(251, 146, 60, 0.08);
}

[data-theme="dark"] .pricing-card-save {
    background: var(--color-accent-muted);
}

[data-theme="dark"] .pricing-cta-btn--outline {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

[data-theme="dark"] .pricing-cta-btn--outline:hover {
    background: var(--color-accent-muted);
}

[data-theme="dark"] .pricing-cta-btn--secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border-default);
}

[data-theme="dark"] .pricing-cta-btn--secondary:hover {
    background: var(--color-bg-hover);
}

[data-theme="dark"] .pricing-comparison-wrapper {
    border-color: var(--color-border-default);
    background: var(--color-bg-secondary);
}

[data-theme="dark"] .pricing-comparison thead th {
    background: var(--color-bg-tertiary);
    border-bottom-color: var(--color-border-default);
}

[data-theme="dark"] .pricing-comparison tbody td {
    border-bottom-color: var(--color-border-subtle);
}

[data-theme="dark"] .pricing-comparison tbody tr:hover td {
    background: var(--color-bg-hover);
}

[data-theme="dark"] .pricing-faq-item {
    border-bottom-color: var(--color-border-default);
}

/* ==================== Responsive: Large Desktop (>=1200px) ==================== */
@media (min-width: 1200px) {
    .pricing-hero {
        padding-top: 112px;
    }

    .pricing-hero-title {
        font-size: 48px;
    }

    .pricing-hero-subtitle {
        font-size: 20px;
    }
}

/* ==================== Responsive: Tablet (<=768px) ==================== */
@media (max-width: 768px) {
    .pricing-hero {
        padding: 88px 20px 32px;
    }

    .pricing-hero-title {
        font-size: 30px;
    }

    .pricing-hero-subtitle {
        font-size: 16px;
    }

    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .pricing-card {
        padding: 24px 20px;
    }

    .pricing-card-amount {
        font-size: 36px;
    }

    .pricing-comparison-title,
    .pricing-faq-title {
        font-size: 24px;
    }

    .pricing-faq-question {
        font-size: 15px;
    }

    .pricing-comparison thead th,
    .pricing-comparison tbody td {
        padding: 12px 14px;
        font-size: 13px;
    }
}

/* ==================== Responsive: Mobile (<=600px) ==================== */
@media (max-width: 600px) {
    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-toggle-btn {
        padding: 7px 14px;
        font-size: 13px;
    }
}

/* ==================== Responsive: Small Mobile (<=380px) ==================== */
@media (max-width: 380px) {
    .pricing-hero {
        padding: 80px 16px 24px;
    }

    .pricing-hero-title {
        font-size: 26px;
    }

    .pricing-hero-subtitle {
        font-size: 14px;
    }

    .pricing-cards-section,
    .pricing-comparison-section,
    .pricing-faq-section {
        padding-left: 16px;
        padding-right: 16px;
    }

    .pricing-card {
        padding: 20px 16px;
    }

    .pricing-card-amount {
        font-size: 32px;
    }

    .pricing-card-name {
        font-size: 18px;
    }

    .pricing-toggle-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .pricing-faq-question {
        font-size: 14px;
        padding: 16px 0;
    }

    .pricing-faq-answer p {
        font-size: 14px;
    }
}

/* ==================== Accessibility ==================== */
@media (prefers-reduced-motion: reduce) {
    .pricing-card {
        transition: none;
    }

    .pricing-faq-answer {
        transition: none;
    }

    .pricing-faq-chevron {
        transition: none;
    }

    .pricing-cta-btn {
        transition: none;
    }

    .pricing-toggle-btn {
        transition: none;
    }
}

/* ==================== Print ==================== */
@media print {
    .legal-header,
    .pricing-toggle-wrapper {
        display: none !important;
    }

    .pricing-hero {
        padding-top: 0;
        background: none;
    }

    .pricing-card {
        break-inside: avoid;
        border: 1px solid #ccc;
    }

    .pricing-card--featured {
        border: 2px solid #F97316;
    }

    body {
        background: #fff;
        color: #000;
    }
}