/**
 * AI FAQ Schema Manager - Frontend Styles
 * CSS-only accordion with no JavaScript dependency
 * Uses CSS variables for customization
 */

/* Container */
.aifaq-accordion {
    margin: 40px 0;
    font-family: inherit;
    --aifaq-accent: #0073aa;
    --aifaq-question-color: #23282d;
    --aifaq-answer-color: #555555;
    --aifaq-bg-color: #fafafa;
    --aifaq-border-radius: 8px;
    --aifaq-title-size: 24px;
    --aifaq-question-size: 16px;
    --aifaq-answer-size: 15px;
}

.aifaq-title {
    font-size: var(--aifaq-title-size);
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--aifaq-accent);
    color: var(--aifaq-question-color);
}

/* FAQ Item */
.aifaq-item {
    margin-bottom: 0;
    border: 1px solid #e0e0e0;
    border-bottom: none;
    background: #fff;
}

.aifaq-item:first-of-type {
    border-radius: var(--aifaq-border-radius) var(--aifaq-border-radius) 0 0;
}

.aifaq-item:last-of-type {
    border-bottom: 1px solid #e0e0e0;
    border-radius: 0 0 var(--aifaq-border-radius) var(--aifaq-border-radius);
}

.aifaq-item:only-of-type {
    border-radius: var(--aifaq-border-radius);
}

/* Toggle (hidden checkbox) */
.aifaq-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* Question (label) */
.aifaq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: var(--aifaq-question-size);
    line-height: 1.5;
    color: var(--aifaq-question-color);
    background: var(--aifaq-bg-color);
    transition: background-color 0.2s ease, color 0.2s ease;
    margin: 0;
    user-select: none;
}

.aifaq-question:hover {
    background: #f0f0f0;
    color: var(--aifaq-accent);
}

/* Icon base */
.aifaq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-left: 15px;
    position: relative;
}

/* Plus/Minus Icon (default) */
.aifaq-icon-plus::before,
.aifaq-icon-plus::after {
    content: '';
    position: absolute;
    background: #666;
    transition: transform 0.3s ease;
}

.aifaq-icon-plus::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.aifaq-icon-plus::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

.aifaq-toggle:checked + .aifaq-question .aifaq-icon-plus::after {
    transform: translateX(-50%) rotate(90deg);
}

/* Chevron Icon */
.aifaq-icon-chevron::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border-right: 2px solid #666;
    border-bottom: 2px solid #666;
    transform: translate(-50%, -70%) rotate(45deg);
    transition: transform 0.3s ease;
}

.aifaq-toggle:checked + .aifaq-question .aifaq-icon-chevron::before {
    transform: translate(-50%, -30%) rotate(-135deg);
}

/* Arrow Icon */
.aifaq-icon-arrow::before {
    content: '→';
    font-size: 18px;
    color: #666;
    transition: transform 0.3s ease;
    display: block;
}

.aifaq-toggle:checked + .aifaq-question .aifaq-icon-arrow::before {
    transform: rotate(90deg);
}

/* Answer */
.aifaq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.aifaq-answer-content {
    padding: 0 20px;
    font-size: var(--aifaq-answer-size);
    line-height: 1.7;
    color: var(--aifaq-answer-color);
}

.aifaq-answer-content p {
    margin: 0 0 1em;
}

.aifaq-answer-content p:last-child {
    margin-bottom: 0;
}

/* Open state */
.aifaq-toggle:checked + .aifaq-question {
    background: #fff;
    color: var(--aifaq-accent);
}

.aifaq-toggle:checked + .aifaq-question .aifaq-icon-plus::before,
.aifaq-toggle:checked + .aifaq-question .aifaq-icon-plus::after,
.aifaq-toggle:checked + .aifaq-question .aifaq-icon-chevron::before,
.aifaq-toggle:checked + .aifaq-question .aifaq-icon-arrow::before {
    background: var(--aifaq-accent);
    border-color: var(--aifaq-accent);
    color: var(--aifaq-accent);
}

.aifaq-toggle:checked ~ .aifaq-answer {
    max-height: 1000px;
}

.aifaq-toggle:checked ~ .aifaq-answer .aifaq-answer-content {
    padding: 20px;
}

/* Focus states for accessibility */
.aifaq-toggle:focus + .aifaq-question {
    outline: 2px solid var(--aifaq-accent);
    outline-offset: -2px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .aifaq-answer,
    .aifaq-icon::before,
    .aifaq-icon::after,
    .aifaq-question {
        transition: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .aifaq-title {
        color: #fff;
        border-color: #4a90d9;
    }

    .aifaq-item {
        border-color: #444;
        background: #1e1e1e;
    }

    .aifaq-question {
        background: #2a2a2a;
        color: #e0e0e0;
    }

    .aifaq-question:hover {
        background: #333;
        color: #4a90d9;
    }

    .aifaq-toggle:checked + .aifaq-question {
        background: #1e1e1e;
        color: #4a90d9;
    }

    .aifaq-icon-plus::before,
    .aifaq-icon-plus::after,
    .aifaq-icon-chevron::before {
        background: #888;
        border-color: #888;
    }

    .aifaq-toggle:checked + .aifaq-question .aifaq-icon-plus::before,
    .aifaq-toggle:checked + .aifaq-question .aifaq-icon-plus::after {
        background: #4a90d9;
    }

    .aifaq-answer-content {
        color: #ccc;
    }
}

/* Mobile responsive */
@media screen and (max-width: 600px) {
    .aifaq-question {
        padding: 15px;
        font-size: calc(var(--aifaq-question-size) * 0.95);
    }

    .aifaq-toggle:checked ~ .aifaq-answer .aifaq-answer-content {
        padding: 15px;
    }

    .aifaq-icon {
        width: 16px;
        height: 16px;
        margin-left: 10px;
    }
}