/* ไฟล์นี้เก็บ CSS สำหรับหน้า "About Us" เท่านั้น
  ส่วน Header, Footer, ScrollTop จะถูกดึงมาจาก /css/style.css
*/

:root {
    --about-primary-color: #121214; /* สีน้ำเงินอมม่วงหลัก */
    --about-secondary-color: #28292E; /* สีน้ำเงินอมม่วงอ่อน */
    --about-background-light: #fafbfc; /* พื้นหลังสว่าง */
    --about-text-dark: #333;
    --about-text-light: #666;
    --about-card-background: #ffffff;
    --about-shadow-light: rgba(0, 0, 0, 0.1);
    --about-border-color: #eee;
}

/* หมายเหตุ: body, html, header, footer, nav, #scrollTopBtn 
  ถูกย้ายไป /css/style.css แล้ว
*/

body {
    background-color: var(--about-background-light);
    color: var(--about-text-dark);
    padding-top: 50px; /* เว้นที่ให้ header.scrolled */
}

/* ส่วน Hero Section */
.hero-section {
    width: 100%;
    background: linear-gradient(135deg, var(--about-primary-color), var(--about-secondary-color));
    color: white;
    text-align: center;
    padding: 80px 20px;
    margin-bottom: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    box-sizing: border-box; /* เพิ่ม box-sizing */
}

.hero-section h1 {
    font-size: 3.5em;
    margin-top: 0; /* เพิ่ม margin-top: 0 */
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-section p {
    font-size: 1.3em;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 300; /* แก้ไข 300px เป็น 300 */
    line-height: 1.6;
    opacity: 0.9;
}

/* ส่วนเนื้อหาหลัก */
main {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.content-section {
    width: 100%;
    max-width: 1000px;
    padding: 0 20px;
    margin-bottom: 60px;
    box-sizing: border-box;
}

.content-block {
    background-color: var(--about-card-background);
    border-radius: 15px;
    box-shadow: 0 8px 20px var(--about-shadow-light);
    padding: 40px;
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 1.1em;
    color: var(--about-text-dark);
}

.content-block h2 {
    color: var(--about-primary-color);
    font-size: 2.2em;
    margin-top: 0; /* เพิ่ม margin-top: 0 */
    margin-bottom: 25px;
    font-weight: 400;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.content-block h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: var(--about-secondary-color);
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.content-block h3 {
    color: var(--about-primary-color);
    font-size: 1.6em;
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: 400;
    border-left: 5px solid var(--about-secondary-color);
    padding-left: 15px;
}

.content-block ul {
    list-style: none; /* ลบ bullet point เริ่มต้น */
    padding-left: 0;
    margin-bottom: 20px;
}

.content-block ul li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
}

.content-block ul li::before {
    content: "\f00c"; /* FontAwesome check icon */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--about-primary-color);
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2em;
}

/* FAQ Section */
.faq-section {
    width: 100%;
    max-width: 1000px;
    padding: 0 20px;
    margin-bottom: 60px;
    box-sizing: border-box;
}

.faq-section h2 {
    color: var(--about-primary-color);
    font-size: 2.5em;
    margin-bottom: 40px;
    font-weight: 500;
    text-align: center;
}

.faq-item {
    background-color: var(--about-card-background);
    border-radius: 10px;
    box-shadow: 0 4px 10px var(--about-shadow-light);
    margin-bottom: 20px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background-color: var(--about-background-light);
    color: var(--about-text-dark);
    font-size: 1.2em;
    font-weight: 400;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #e9ecef;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    color: var(--about-text-light);
    line-height: 1.6;
}

.faq-item.active .faq-question {
    background-color: var(--about-secondary-color);
    color: white;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-item.active .faq-answer {
    max-height: 300px; /* ค่าเผื่อสำหรับเนื้อหาที่ยาวขึ้น */
    padding: 20px 25px;
}

/* Call to Action Section */
.cta-section {
    width: 100%;
    max-width: 1000px;
    padding: 50px 20px;
    text-align: center;
    background-color: var(--about-primary-color);
    color: white;
    border-radius: 15px;
    margin-bottom: 60px;
    box-shadow: 0 10px 30px var(--about-shadow-light);
    box-sizing: border-box; /* เพิ่ม box-sizing */
}

.cta-section h2 {
    font-size: 2.5em;
    margin-top: 0; /* เพิ่ม margin-top: 0 */
    margin-bottom: 20px;
    font-weight: 500;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
    font-weight: 300; /* แก้ไข 300px เป็น 300 */
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.cta-buttons a {
    display: inline-block;
    background-color: white;
    color: var(--about-primary-color);
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1em;
    margin: 10px 15px; /* เพิ่ม margin-top/bottom */
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.cta-buttons a:hover {
    transform: translateY(-3px);
    background-color: #f0f0f0;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.bold-star {
    font-weight: bold;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 15px;
    }

    .hero-section h1 {
        font-size: 2.8em;
    }

    .hero-section p {
        font-size: 1.1em;
    }

    .content-block {
        padding: 30px;
    }

    .content-block h2 {
        font-size: 2em;
    }

    .content-block h3 {
        font-size: 1.4em;
    }

    .content-block ul li {
        padding-left: 25px;
    }

    .faq-section h2 {
        font-size: 2em;
    }

    .faq-question {
        font-size: 1.1em;
        padding: 18px 20px;
    }

    .faq-answer {
        padding: 15px 20px;
    }

    .cta-section {
        padding: 40px 15px;
    }

    .cta-section h2 {
        font-size: 2em;
    }

    .cta-section p {
        font-size: 1em;
    }

    .cta-buttons a {
        padding: 12px 20px;
        font-size: 1em;
        margin: 5px 10px; /* แก้ไข margin */
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2.2em;
    }

    .hero-section p {
        font-size: 1em;
    }

    .content-section, .faq-section, .cta-section {
        padding: 0 15px;
    }

    .content-block {
        padding: 25px;
    }

    .content-block h2 {
        font-size: 1.8em;
    }

    .content-block h3 {
        font-size: 1.2em;
    }

    .content-block ul li {
        font-size: 0.95em;
    }

    .faq-question {
        font-size: 1em;
        padding: 15px;
    }

    .faq-answer {
        padding: 10px 15px;
        font-size: 0.95em;
    }

    .cta-buttons {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .cta-buttons a {
        width: 90%;
        margin: 0 auto;
        text-align: center;
    }
}