/* Invited Speakers — หน้าแรก (section-2-home) และหน้า invited-speakers (โหลดไฟล์นี้หลัง style.css, slick.css และไฟล์ breakpoint ทั้งหมด) */
.sp-section, .sp-page, .sp-breadcrumb {
    /* AASP Theme Palette */
    --sp-main: #D1236B;          /* aasp-primary */
    --sp-main-light: #FDEBF3;    /* aasp-primary-light */
    --sp-main-dark: #A31250;     /* aasp-primary-dark */
    --sp-rgb: 209, 35, 107;      /* rgb ของ aasp-primary */
    --sp-accent: #FEB713;        /* aasp-accent */
    --sp-ink: #1E1A47;           /* aasp-indigo-dark */
    --sp-muted: #6B668A;         /* aasp-muted */
}

.sp-section {
    position: relative;
    padding: clamp(2.5rem, 5vw, 4.5rem) 0 clamp(2rem, 4vw, 3.5rem);
    overflow: hidden;
    /* ไล่สีจาก ขาว ไป ครีม (aasp-bg-cream) */
    background: radial-gradient(circle at 100% 0%, rgba(var(--sp-rgb), .1), transparent 40%), linear-gradient(180deg, #fff, #FFFDF9);
}
.sp-section .ico, .sp-page .ico, .sp-breadcrumb .ico { display: inline-block; flex-shrink: 0; width: 1em; height: 1em; fill: currentColor; }

/* Heading */
.sp-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: clamp(1.25rem, 2.5vw, 2rem); }
.sp-eyebrow { display: inline-block; margin-bottom: .6rem; padding: .3rem .85rem; border-radius: 999px; font-size: .78rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--sp-main); background: rgba(var(--sp-rgb), .1); }
.sp-title { position: relative; margin: 0; padding-bottom: .7rem; font-size: clamp(1.75rem, 1.2rem + 1.8vw, 2.5rem); font-weight: 600; line-height: 1.15; }
.sp-title a { color: var(--sp-ink); }
.sp-title a:hover { color: var(--sp-main); }
.sp-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 56px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--sp-accent), var(--sp-main)); }
.sp-tools { display: flex; align-items: center; gap: .5rem; }
.sp-all { display: inline-flex; align-items: center; gap: .45rem; margin-right: .35rem; padding: .5rem 1rem; border-radius: 999px; font-size: .92rem; font-weight: 500; color: var(--sp-main); background: rgba(var(--sp-rgb), .08); transition: background .2s, color .2s; }
.sp-all .ico { font-size: .85em; transition: transform .2s; }
.sp-all:hover { color: #fff; background: var(--sp-main); }
.sp-all:hover .ico { transform: translateX(3px); }
.sp-nav { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; padding: 0; border: 1.5px solid rgba(var(--sp-rgb), .3); border-radius: 50%; font-size: .9rem; color: var(--sp-main); background: #fff; transition: background .2s, color .2s, border-color .2s, transform .2s; }
.sp-nav:hover, .sp-nav:focus-visible { color: #fff; background: var(--sp-main); border-color: var(--sp-main); transform: translateY(-2px); }
.sp-nav.slick-disabled { opacity: .35; pointer-events: none; }
.sp-nav.slick-hidden { display: none; }

/* Slider (ซ่อนก่อน slick พร้อม เพื่อไม่ให้เห็นการ์ดเรียงลงมาตอนโหลด) */
#id_speakers.sp-slider { display: block; margin: 0 -.6rem; opacity: 0; transition: opacity .6s ease; }
#id_speakers.sp-slider.is-ready { opacity: 1; }
#id_speakers.sp-slider:not(.slick-initialized) { display: flex; overflow: hidden; }
#id_speakers.sp-slider:not(.slick-initialized) .sp-slide { flex: 0 0 25%; }
#id_speakers .slick-list { padding: .75rem 0 1.5rem; }
#id_speakers .slick-track { display: flex; }
#id_speakers .sp-slide { display: flex; height: auto; padding: 0 .6rem; }
#id_speakers .sp-slide > .sp-card { flex: 1 1 auto; width: 100%; }

/* Card */
.sp-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(var(--sp-rgb), .1);
    border-radius: 20px;
    color: var(--sp-ink);
    background: #fff;
    box-shadow: 0 16px 34px -24px rgba(var(--sp-rgb), .7);
    transition: transform .3s, box-shadow .3s;
}
a.sp-card:hover, a.sp-card:focus-visible { color: var(--sp-ink); transform: translateY(-6px); box-shadow: 0 26px 44px -22px rgba(var(--sp-rgb), .65); }
a.sp-card:focus-visible { outline: 3px solid rgba(var(--sp-rgb), .35); outline-offset: 2px; }
.sp-photo { position: relative; display: block; aspect-ratio: 5 / 5; overflow: hidden; background: linear-gradient(160deg, var(--sp-main), var(--sp-main-dark)); } /* ปรับสี placeholder */
.sp-photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.sp-photo::after { content: ""; position: absolute; inset: auto 0 0 0; height: 40%; background: linear-gradient(180deg, transparent, rgba(var(--sp-rgb), .35)); pointer-events: none; }
a.sp-card:hover .sp-photo img { transform: scale(1.06); }
.sp-body { position: relative; display: flex; flex: 1 1 auto; flex-direction: column; gap: .35rem; padding: 1.1rem 1.15rem 1.25rem; }
.sp-body::before { content: ""; position: absolute; top: 0; left: 1.15rem; width: 36px; height: 3px; border-radius: 3px; background: var(--sp-accent); transform: translateY(-50%); }
.sp-name { font-size: clamp(1rem, .9rem + .3vw, 1.15rem); font-weight: 600; line-height: 1.3; color: var(--sp-main); }
.sp-detail { font-size: .88rem; line-height: 1.5; color: var(--sp-muted); display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.sp-card.is-placeholder .sp-photo img { opacity: .55; filter: grayscale(1); }
.sp-badge { align-self: flex-start; padding: .15rem .6rem; border-radius: 999px; font-size: .7rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: #A37000; background: rgba(254,183,19,.18); }

/* Dots */
#id_speakers .slick-dots { position: static; display: flex !important; justify-content: center; gap: .4rem; margin: .25rem 0 0; padding: 0; list-style: none; }
#id_speakers .slick-dots li { width: auto; height: auto; margin: 0; }
#id_speakers .slick-dots li button { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 999px; font-size: 0; background: rgba(var(--sp-rgb), .25); transition: width .3s, background .3s; }
#id_speakers .slick-dots li button::before { display: none; }
#id_speakers .slick-dots li.slick-active button { width: 26px; background: var(--sp-main); }

/* Responsive */
@media (max-width: 991.98px) {
    #id_speakers.sp-slider:not(.slick-initialized) .sp-slide { flex-basis: 50%; }
}
@media (max-width: 575.98px) {
    .sp-head { align-items: flex-start; }
    .sp-tools { width: 100%; }
    .sp-all { margin-right: auto; }
    #id_speakers.sp-slider { margin: 0 -.4rem; }
    #id_speakers .sp-slide { padding: 0 .4rem; }
    #id_speakers.sp-slider:not(.slick-initialized) .sp-slide { flex-basis: 85%; }
}

/* ===== หน้า Invited Speakers ===== */
.sp-breadcrumb { display: inline-flex; flex-wrap: wrap; align-items: center; gap: .5rem; padding: .5rem 1.1rem; border-radius: 999px; font-size: .95rem; font-weight: 500; color: var(--sp-muted); background: rgba(var(--sp-rgb), .08); }
.sp-breadcrumb a { display: inline-flex; align-items: center; gap: .45rem; color: var(--sp-muted); transition: color .2s; }
.sp-breadcrumb a:hover { color: var(--sp-main); }
.sp-breadcrumb .sep { color: rgba(var(--sp-rgb), .45); }
.sp-breadcrumb .active { color: var(--sp-main); }
.sp-page { position: relative; background: radial-gradient(circle at 0% 0%, rgba(var(--sp-rgb), .08), transparent 35%), radial-gradient(circle at 100% 30%, rgba(254,183,19,.08), transparent 30%); }
.sp-page-head { max-width: 680px; margin: 0 auto clamp(2rem, 4vw, 3rem); text-align: center; }
.sp-page-head .sp-title { margin-bottom: 1rem; color: var(--sp-ink); }
.sp-page-head .sp-title::after { left: 50%; transform: translateX(-50%); }
.sp-lead { margin: 0; font-size: clamp(.95rem, .9rem + .2vw, 1.08rem); line-height: 1.6; color: var(--sp-muted); }
.sp-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1rem, 2vw, 1.75rem); }
.sp-grid .sp-card { transition: transform .3s, box-shadow .3s; }
.sp-grid .sp-card:hover { transform: translateY(-6px); box-shadow: 0 26px 44px -22px rgba(var(--sp-rgb), .65); }
.sp-grid .sp-card:hover .sp-photo img { transform: scale(1.06); }
.sp-grid .sp-name { margin: 0; }
.sp-grid .sp-detail { -webkit-line-clamp: unset; display: block; overflow: visible; }

@media (max-width: 1199.98px) {
    .sp-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 767.98px) {
    .sp-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sp-grid .sp-body { padding: .9rem .9rem 1rem; }
    .sp-grid .sp-body::before { left: .9rem; }
}
@media (max-width: 575.98px) {
    .sp-breadcrumb { border-radius: 14px; font-size: .88rem; }
}
@media (max-width: 419.98px) {
    .sp-grid { grid-template-columns: 1fr; }
    .sp-grid .sp-photo { aspect-ratio: 1 / 1; }
}
@media (prefers-reduced-motion: reduce) {
    .sp-section *, .sp-page *, .sp-breadcrumb *, #id_speakers.sp-slider { transition: none !important; }
}