/* components/faq.css — FAQ accordion section.
 * Dark background for a strong visual break after the courses grid.
 * Native <details>/<summary> accordion — no JavaScript required.
 */

/* ── Section ─────────────────────────────────────────────────────────────── */
.faq {
    padding-block: clamp(4rem, 8vw, 5.5rem);
    background: linear-gradient(
        135deg,
        var(--color-faq-gradient-deep) 0%,
        var(--color-nav-dark-red) 50%,
        var(--color-faq-gradient-lift) 100%
    );
    position: relative;
    overflow: hidden;
}

/* Decorative circle — top right */
.faq::before {
    content: '';
    position: absolute;
    top: -15%;
    right: -8%;
    width: clamp(320px, 42vw, 640px);
    height: clamp(320px, 42vw, 640px);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: none;
}

/* Decorative circle — bottom left */
.faq::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -6%;
    width: clamp(220px, 28vw, 440px);
    height: clamp(220px, 28vw, 440px);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    pointer-events: none;
}

/* ── Section header ──────────────────────────────────────────────────────── */
.faq__header,
.faq__grid {
    position: relative;
    z-index: 1;
}

.faq__header {
    text-align: center;
    max-width: 728px;
    margin-inline: auto;
    padding-inline: var(--space-6);
    margin-bottom: clamp(3rem, 5vw, 4.5rem);
}

.faq__eyebrow {
    margin: 0 0 var(--space-3) 0;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary-light);
}

.faq__title {
    margin: 0 0 var(--space-4) 0;
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.faq__intro {
    margin: 0;
    font-size: 1.1875rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

/* ── Two-column grid ─────────────────────────────────────────────────────── */
.faq__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(3rem, 6vw, 6rem);
    max-width: 1400px;
    margin-inline: auto;
    padding-inline: clamp(var(--space-6), 4vw, var(--space-16));
}

/* ── Column ──────────────────────────────────────────────────────────────── */
.faq__column {
    display: flex;
    flex-direction: column;
}

/* ── Accordion item — glass card ─────────────────────────────────────────── */
.faq__item {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: var(--radius-lg);
    padding-inline: var(--space-6);
    margin-bottom: var(--space-3);
    transition: background 0.2s ease;
}

.faq__item:hover {
    background: rgba(255, 255, 255, 0.11);
}

.faq__item:last-child {
    margin-bottom: 0;
}

/* ── Question row (<summary>) ────────────────────────────────────────────── */
.faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-6);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

/* Remove default marker in all browsers */
.faq__question::-webkit-details-marker { display: none; }
.faq__question::marker               { display: none; }

.faq__question-text {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-white);
    transition: color 0.25s ease;
}

.faq__question:hover .faq__question-text {
    color: var(--color-primary-light);
}

details[open] .faq__question-text {
    color: var(--color-primary-light);
}

/* ── +/× icon ────────────────────────────────────────────────────────────── */
.faq__icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    transition: transform 0.25s ease;
}

details[open] .faq__icon {
    transform: rotate(45deg);
}

/* ── Answer body ─────────────────────────────────────────────────────────── */
.faq__answer {
    padding-bottom: var(--space-6);
    padding-right: var(--space-8);
}

.faq__answer p {
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.75);
}

/* Slide-fade animation when answer opens */
details[open] .faq__answer {
    animation: faq-fade-in 0.35s ease-out;
}

@keyframes faq-fade-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide-fade out when answer closes (.is-closing added by JS) */
.faq__item.is-closing .faq__answer {
    animation: faq-fade-out 0.28s ease-in forwards;
}

@keyframes faq-fade-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
    details[open] .faq__answer,
    .faq__item.is-closing .faq__answer {
        animation: none;
    }

    .faq__icon {
        transition: none;
    }
}

/* ── Responsive: single column below 768px ───────────────────────────────── */
@media (max-width: 768px) {
    .faq__grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* Last item of first column gets bottom margin restored since second column follows */
    .faq__column:first-child .faq__item:last-child {
        margin-bottom: var(--space-3);
    }
}