:root {
    --primary: #393e41;
    --primary-light: #4d5356;
    --accent: #55a668;
    --accent-hover: #478f58;
    --text: #333;
    --text-light: #666;
    --light-bg: #f6f7eb;
    --border: #e5e5e5;
    --white: #fff;
    --radius: 6px;
    --shadow: 0 2px 8px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,.12);
    --transition: .2s ease;
    --container: 1280px;
    --font-heading: 'Kanit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--primary);line-height:1.2;font-weight:700}
h1{font-size:clamp(1.75rem,4vw,2.75rem)}
h2{font-size:clamp(1.5rem,3vw,2.25rem)}
h3{font-size:clamp(1.25rem,2.5vw,1.5rem)}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border:2px solid transparent;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none;line-height:1;font-family:var(--font-heading)}
.btn--primary{background:var(--accent);color:var(--primary);border-color:var(--accent)}
.btn--primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--primary)}
.btn--secondary{background:var(--primary);color:var(--white);border-color:var(--primary)}
.btn--secondary:hover{background:var(--primary-light);border-color:var(--primary-light);color:var(--white)}
.btn--outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn--outline:hover{background:var(--primary);color:var(--white)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.section{padding:60px 0}
.section--alt{background:var(--light-bg)}
.section__title{text-align:center;margin-bottom:40px}
.section__subtitle{text-align:center;color:var(--text-light);max-width:600px;margin:-24px auto 40px}
@media(min-width:768px){.section{padding:80px 0}}

/* FAQ Accordion */
.faq-list {
    border-top: 1px solid var(--border);
}

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

.faq-item__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 500;
    color: var(--primary);
    cursor: pointer;
    list-style: none;
    transition: color .2s;
}

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

.faq-item__question::after {
    content: '+';
    font-size: 20px;
    font-weight: 300;
    color: var(--accent);
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform .2s;
}

.faq-item[open] .faq-item__question::after {
    content: '−';
}

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

.faq-item__answer {
    padding: 0 0 16px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-light);
}

.faq-item__answer p {
    margin: 0 0 8px;
}

.faq-item__answer p:last-child {
    margin-bottom: 0;
}

/* FAQ Filters */
.faq-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.faq-filter {
    padding: 6px 16px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    text-decoration: none;
    transition: all .2s;
}

.faq-filter:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.faq-filter--active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
    font-weight: 600;
}

.faq-filter--active:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--primary);
}

/* FAQ Group titles */
.faq-group__title {
    font-size: 18px;
    margin: 32px 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
}

.faq-group__title:first-of-type {
    margin-top: 0;
}