/* ==========================================================================
   FlyBeep Public Website — Sections (Task 5: Home Sections)
   Value strip, Offers strip, How a quote works, Airlines, FAQ preview
   Fluid layout, no pixel widths/heights, light/dark tokens only.
   ========================================================================== */

/* --- 1. Value Proposition Strip (Features) --- */
.pub-features {
    padding: clamp(3.5rem, 6vw, 5rem) 0;
    background-color: var(--pub-surface-subtle);
}

.pub-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
    gap: var(--pub-gap);
}

.pub-feature-card {
    background-color: var(--pub-surface-card);
    border: 1px solid var(--pub-border);
    border-radius: var(--pub-radius-card);
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    box-shadow: var(--pub-shadow-sm);
    transition: var(--pub-transition);
}

.pub-feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pub-shadow-md);
    border-color: var(--pub-border-strong);
}

.pub-feature-icon {
    width: 3rem;
    height: 3rem;
    min-width: 3rem;
    border-radius: var(--pub-radius-pill);
    background-color: var(--pub-surface-muted);
    color: var(--pub-red-text);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pub-feature-title {
    font-family: var(--pub-font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--pub-text-heading);
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.pub-feature-desc {
    font-size: 0.9375rem;
    color: var(--pub-text-muted);
    line-height: 1.5;
    overflow-wrap: anywhere;
}


/* --- 2. Offers Strip (Promotions) --- */
.pub-promos {
    padding: clamp(3.5rem, 6vw, 5rem) 0;
    background-color: var(--pub-bg);
}

.pub-promos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
    gap: var(--pub-gap);
}

.pub-promo-card {
    background-color: var(--pub-surface-card);
    border: 1px solid var(--pub-border);
    border-radius: var(--pub-radius-card);
    box-shadow: var(--pub-shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    transition: var(--pub-transition);
}

.pub-promo-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pub-shadow-md);
    border-color: var(--pub-border-strong);
}

.pub-promo-stub {
    padding: clamp(1rem, 2vw, 1.25rem) clamp(1.25rem, 2.5vw, 1.75rem);
    border-bottom: 1px dashed var(--pub-line);
    background-color: var(--pub-surface-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.pub-promo-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    border-radius: var(--pub-radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--pub-red-text);
    background-color: var(--pub-surface-muted);
    border: 1px solid var(--pub-border);
}

.pub-promo-price {
    font-family: var(--pub-font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pub-text-heading);
    margin: 0;
}

.pub-promo-body {
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 0.5rem;
}

.pub-promo-body .pub-feature-title {
    margin-bottom: 0.25rem;
}

.pub-promo-body .pub-feature-desc {
    margin-bottom: 0.25rem;
}

.pub-promo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: auto;
    padding-top: 0.75rem;
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--pub-red-text);
    text-decoration: none;
    transition: var(--pub-transition);
}

.pub-promo-link:hover {
    color: var(--pub-red-hover);
    text-decoration: underline;
}

[data-theme="dark"] .pub-promo-link:hover {
    color: var(--pub-red-soft);
}

.pub-promo-link:focus-visible {
    outline: 2px solid var(--pub-border-focus);
    outline-offset: 2px;
}


/* --- 3. How a Quote Works (Steps) --- */
.pub-steps {
    padding: clamp(3.5rem, 6vw, 5rem) 0;
    background-color: var(--pub-surface-subtle);
}

.pub-steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
    gap: var(--pub-gap);
}

.pub-step-card {
    background-color: var(--pub-surface-card);
    border: 1px solid var(--pub-border);
    border-top: 3px solid var(--pub-red);
    border-radius: var(--pub-radius-card);
    padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 1.75rem);
    position: relative;
    box-shadow: var(--pub-shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: var(--pub-transition);
}

.pub-step-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pub-shadow-md);
    border-color: var(--pub-border-strong);
    border-top-color: var(--pub-red);
}

.pub-step-num {
    width: 2.75rem;
    height: 2.75rem;
    min-width: 2.75rem;
    border-radius: var(--pub-radius-pill);
    background-color: var(--pub-surface-muted);
    color: var(--pub-red-text);
    border: 1px solid var(--pub-border);
    font-family: var(--pub-font-display);
    font-size: 1.125rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    box-shadow: var(--pub-shadow-sm);
}

.pub-step-title {
    font-family: var(--pub-font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--pub-text-heading);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.pub-step-desc {
    font-size: 0.9375rem;
    color: var(--pub-text-muted);
    line-height: 1.55;
    overflow-wrap: anywhere;
}


/* --- 4. Partner Airlines Showcase --- */
.pub-airlines {
    padding: clamp(3.5rem, 6vw, 5rem) 0;
    background-color: var(--pub-bg);
}

.pub-airlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
    gap: var(--pub-gap);
    align-items: stretch;
}

.pub-airline-card {
    background-color: var(--pub-surface-card);
    border: 1px solid var(--pub-border);
    border-radius: var(--pub-radius-card);
    padding: clamp(1rem, 2vw, 1.5rem) 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-align: center;
    box-shadow: var(--pub-shadow-sm);
    transition: var(--pub-transition);
}

.pub-airline-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pub-shadow-md);
    border-color: var(--pub-border-strong);
}

.pub-airline-logo {
    height: 2.5rem;
    max-width: 100%;
    object-fit: contain;
}

.pub-airline-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--pub-text-muted);
    line-height: 1.3;
    overflow-wrap: anywhere;
}

/* Light contrast plate for airline logos in dark mode */
[data-theme="dark"] .pub-airline-card {
    background-color: white;
    border-color: transparent;
}

[data-theme="dark"] .pub-airline-card .pub-airline-name {
    color: rgba(30, 41, 59, 0.85);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .pub-airline-card {
        background-color: white;
        border-color: transparent;
    }

    :root:not([data-theme="light"]) .pub-airline-card .pub-airline-name {
        color: rgba(30, 41, 59, 0.85);
    }
}


/* --- 5. Frequently Asked Questions Preview --- */
.pub-faqs {
    padding: clamp(3.5rem, 6vw, 5rem) 0;
    background-color: var(--pub-surface-subtle);
}

.pub-faqs-wrap {
    max-width: min(100%, 60rem);
    margin-inline: auto;
    border-top: 1px solid var(--pub-line);
    border-bottom: 1px solid var(--pub-line);
}

.pub-faq-item {
    border-bottom: 1px solid var(--pub-line);
    background-color: transparent;
    transition: var(--pub-transition);
}

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

.pub-faq-summary {
    padding: clamp(1rem, 2vw, 1.35rem) 0;
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    font-weight: 600;
    color: var(--pub-text-heading);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    list-style: none;
    user-select: none;
    transition: color 0.15s ease;
}

.pub-faq-summary::-webkit-details-marker {
    display: none;
}

.pub-faq-summary:hover {
    color: var(--pub-red-text);
}

.pub-faq-summary:focus-visible {
    outline: 2px solid var(--pub-border-focus);
    outline-offset: 4px;
    border-radius: var(--pub-radius-sm);
}

.pub-faq-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--pub-red-text);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.pub-faq-item[open] .pub-faq-icon {
    transform: rotate(180deg);
}

.pub-faq-answer {
    padding: 0 0 clamp(1rem, 2vw, 1.35rem) 0;
    font-size: 0.95rem;
    color: var(--pub-text-muted);
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.pub-faq-cta {
    text-align: center;
    margin-top: clamp(2rem, 4vw, 3rem);
}


/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    .pub-feature-card,
    .pub-promo-card,
    .pub-step-card,
    .pub-airline-card,
    .pub-faq-item,
    .pub-faq-icon,
    .pub-promo-link,
    .pub-faq-summary {
        transition: none !important;
        transform: none !important;
    }
}