/* OZARIAM · ส่วนเสริม (4 ต.ค. 2569) — โหลดหลัง brand.css
   1) header ติดด้านบนตลอด
   2) ช่องเลือก (<select>) กลายเป็น dropdown ค้นหาได้แบบ select2 — ไอคอน คำอธิบาย ค้นหา แถบแสงเลื่อนตาม คีย์บอร์ดครบ
   ใช้ตัวแปรสีของ design system ทั้งหมด (สว่าง/มืดเปลี่ยนเอง) · ไม่ใช้ backdrop blur */

:root { --header-h: 90px; --ozsel-ease: cubic-bezier(.2, .8, .2, 1); }
@media (max-width: 1080px) { :root { --header-h: 78px; } }
@media (max-width: 760px)  { :root { --header-h: 72px; } }

/* ------------------------------------------------------------------ header ติดด้านบน */
html { scroll-padding-top: calc(var(--header-h) + 16px); }
body { padding-top: var(--header-h); }
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  transition: box-shadow .25s ease;
}
.site-header.is-scrolled { box-shadow: 0 1px 0 var(--line), 0 12px 32px rgba(7, 27, 68, .08); }
:root[data-theme=dark] .site-header.is-scrolled { box-shadow: 0 1px 0 var(--line), 0 14px 36px rgba(0, 0, 0, .45); }
.mobile-nav { max-height: calc(100dvh - var(--header-h)); overflow-y: auto; overscroll-behavior: contain; }
@media print { body { padding-top: 0; } }

/* ------------------------------------------------------------------ dropdown ค้นหาได้ */
/* <select> เดิมยังอยู่ (ฟอร์มอ่านค่าจากตัวนี้) แค่ซ่อนจากสายตา */
.ozsel-host { position: relative; }
.ozsel-native {
  position: absolute !important; width: 1px !important; height: 1px !important; min-height: 0 !important;
  margin: 0 !important; padding: 0 !important; border: 0 !important; opacity: 0 !important;
  overflow: hidden; clip-path: inset(50%); pointer-events: none;
}

.ozsel { position: relative; margin-top: 6px; }
.ozsel-control {
  width: 100%; min-height: 48px; display: flex; align-items: center; gap: 10px;
  padding: 9px 10px 9px 9px; margin: 0;
  border: 1px solid var(--line-strong); border-radius: 9px; background: var(--surface-alt);
  color: var(--heading); font: inherit; font-size: 16px; line-height: 1.5; text-align: left; cursor: pointer;
  transition: border-color .2s, box-shadow .25s, background-color .2s;
}
.ozsel-control:hover { border-color: var(--primary); }
.ozsel-control:focus-visible { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(var(--primary-rgb), .16); }
.ozsel.is-open .ozsel-control {
  border-color: var(--primary); background: var(--surface);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), .16), 0 10px 26px rgba(var(--primary-rgb), .12);
}
.ozsel-value { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ozsel-chevron {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  color: var(--muted); transform: rotate(90deg);
  transition: transform .35s var(--ozsel-ease), background-color .2s, color .2s;
}
.ozsel-chevron .icon { width: 16px; height: 16px; }
.ozsel.is-open .ozsel-chevron { transform: rotate(-90deg); color: var(--primary); background: rgba(var(--primary-rgb), .1); }

/* วงไอคอน — ใช้ทั้งในช่องและในรายการ */
.ozsel-badge {
  position: relative; flex: 0 0 auto; width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center; color: var(--primary);
  background: rgba(var(--primary-rgb), .12); box-shadow: inset 0 0 0 1px rgba(var(--primary-rgb), .22);
}
.ozsel-badge .icon { width: 16px; height: 16px; }
/* เลือกแล้วไอคอนเด้ง + วงแหวนกระจาย */
.ozsel-badge.pop { animation: ozsel-pop .5s var(--ozsel-ease); }
.ozsel-badge.pop::after {
  content: ''; position: absolute; inset: -2px; border-radius: 50%;
  border: 1.5px solid rgba(var(--primary-rgb), .6); animation: ozsel-ring .65s ease-out forwards;
}
@keyframes ozsel-pop { 0% { transform: scale(.55) rotate(-25deg); } 60% { transform: scale(1.14) rotate(5deg); } 100% { transform: none; } }
@keyframes ozsel-ring { from { opacity: .9; transform: scale(.85); } to { opacity: 0; transform: scale(2); } }

/* กล่องตัวเลือก (วางเป็น position: fixed จึงไม่ถูกตัดขอบในหน้าต่าง dialog) */
.ozsel-menu {
  position: fixed; z-index: 20; display: flex; flex-direction: column;
  max-height: var(--ozsel-max, 440px); overflow: hidden;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 16px;
  box-shadow: 0 24px 60px rgba(7, 27, 68, .18), 0 4px 14px rgba(7, 27, 68, .08);
  transform-origin: top center;
}
.ozsel-menu[hidden] { display: none; }
.ozsel-menu[data-side=top] { transform-origin: bottom center; }
:root[data-theme=dark] .ozsel-menu { box-shadow: 0 24px 60px rgba(0, 0, 0, .6), 0 0 0 1px rgba(var(--primary-rgb), .08); }
.ozsel-menu::before {
  content: ''; position: absolute; left: 18px; right: 18px; top: 0; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(var(--primary-rgb), .75), transparent);
}
.ozsel-menu.is-in { animation: ozsel-in .24s var(--ozsel-ease); }
.ozsel-menu.is-in[data-side=top] { animation-name: ozsel-in-up; }
@keyframes ozsel-in { from { opacity: 0; transform: translateY(-8px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes ozsel-in-up { from { opacity: 0; transform: translateY(8px) scale(.97); } to { opacity: 1; transform: none; } }

.ozsel-search {
  flex: 0 0 auto; display: flex; align-items: center; gap: 8px; margin: 10px 10px 6px; padding: 0 8px 0 11px;
  border: 1px solid var(--line); border-radius: 11px; background: var(--surface-alt);
  transition: border-color .2s, box-shadow .2s;
}
.ozsel-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), .12); }
.ozsel-search > .icon { width: 17px; height: 17px; color: var(--subtle); }
.ozsel-search input {
  flex: 1 1 auto; min-width: 0; min-height: 0; margin: 0; padding: 10px 0;
  border: 0; border-radius: 0; background: transparent; box-shadow: none; outline: none;
  color: var(--text); font: inherit; font-size: 16px; line-height: 1.4;
}
.ozsel-count {
  flex: 0 0 auto; white-space: nowrap; font: 600 11px/1 var(--latin); letter-spacing: .02em;
  color: var(--primary); background: rgba(var(--primary-rgb), .1); padding: 6px 9px; border-radius: 100px;
}

.ozsel-list {
  position: relative; flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain;
  padding: 4px 6px 8px; outline: none;
}
/* เลื่อนดูได้อีก → ขอบจางลง บอกว่ายังมีตัวเลือก */
.ozsel-list.fade-bottom { -webkit-mask-image: linear-gradient(to bottom, #000 calc(100% - 30px), transparent); mask-image: linear-gradient(to bottom, #000 calc(100% - 30px), transparent); }
.ozsel-list.fade-top { -webkit-mask-image: linear-gradient(to top, #000 calc(100% - 30px), transparent); mask-image: linear-gradient(to top, #000 calc(100% - 30px), transparent); }
.ozsel-list.fade-top.fade-bottom {
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 30px, #000 calc(100% - 30px), transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 30px, #000 calc(100% - 30px), transparent);
}
/* แถบแสงที่เลื่อนตามตัวเลือกที่ชี้อยู่ */
.ozsel-glow {
  position: absolute; left: 6px; right: 6px; top: 0; height: 0; border-radius: 12px; pointer-events: none; opacity: 0;
  background: linear-gradient(100deg, rgba(var(--primary-rgb), .15), rgba(var(--primary-rgb), .05) 72%, transparent);
  box-shadow: inset 0 0 0 1px rgba(var(--primary-rgb), .2);
  transition: transform .24s var(--ozsel-ease), height .24s var(--ozsel-ease), opacity .15s;
}
.ozsel-glow::before {
  content: ''; position: absolute; left: 0; top: 11px; bottom: 11px; width: 3px; border-radius: 3px;
  background: var(--primary); box-shadow: 0 0 12px rgba(var(--primary-rgb), .85);
}

.ozsel-opt {
  position: relative; display: flex; align-items: center; gap: 11px; padding: 7px 10px 7px 12px; border-radius: 12px;
  cursor: pointer; user-select: none;
  animation: ozsel-opt-in .32s var(--ozsel-ease) both; animation-delay: calc(var(--i, 0) * 26ms);
}
.ozsel-opt[hidden] { display: none; }
@keyframes ozsel-opt-in { from { opacity: 0; transform: translateX(-10px); } to { opacity: 1; transform: none; } }
.ozsel-opt .ozsel-badge { width: 34px; height: 34px; transition: transform .28s var(--ozsel-ease), background-color .2s; }
.ozsel-opt .ozsel-badge .icon { width: 18px; height: 18px; }
.ozsel-opt.is-active .ozsel-badge { transform: scale(1.08) rotate(-6deg); background: rgba(var(--primary-rgb), .2); }
.ozsel-text { flex: 1 1 auto; min-width: 0; display: grid; }
.ozsel-text b { font-family: var(--display); font-weight: 500; font-size: 15px; line-height: 1.4; color: var(--heading); }
.ozsel-text small { font-size: 12px; line-height: 1.5; color: var(--muted); }
.ozsel-text mark {
  color: inherit; border-radius: 2px; padding: 0 1px;
  background: linear-gradient(transparent 55%, rgba(var(--primary-rgb), .3) 55%);
}
.ozsel-why {
  display: inline-block; font-style: normal; font-size: 11px; line-height: 1.4; white-space: nowrap;
  color: var(--primary); background: rgba(var(--primary-rgb), .1); padding: 1px 7px; border-radius: 100px;
  animation: ozsel-opt-in .3s var(--ozsel-ease) both;
}
.ozsel-check { width: 18px; height: 18px; color: var(--primary); opacity: 0; transform: scale(.5); transition: opacity .2s, transform .3s var(--ozsel-ease); }
.ozsel-opt[aria-selected=true] .ozsel-check { opacity: 1; transform: none; }
.ozsel-opt[aria-selected=true] .ozsel-text b { color: var(--primary); }

.ozsel-empty { padding: 18px 14px 14px; text-align: center; color: var(--muted); font-size: 13px; line-height: 1.7; }
.ozsel-empty[hidden] { display: none; }

.ozsel-foot {
  flex: 0 0 auto; display: flex; gap: 14px; justify-content: flex-end; flex-wrap: wrap;
  padding: 8px 12px; border-top: 1px solid var(--line); background: var(--surface-alt);
  font-size: 11px; color: var(--subtle);
}
.ozsel-foot kbd {
  font: 600 10px/1 var(--latin); padding: 3px 5px; border-radius: 5px;
  border: 1px solid var(--line-strong); border-bottom-width: 2px; background: var(--surface); color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .ozsel-menu.is-in, .ozsel-opt, .ozsel-badge.pop, .ozsel-badge.pop::after { animation: none !important; }
  .ozsel-glow, .ozsel-chevron, .ozsel-check, .ozsel-opt .ozsel-badge, .site-header { transition: none !important; }
}

/* ------------------------------------------------------------------ ผลงาน: ป้าย LIVE + กล่องลิงก์เดโม */
.project-visual { position: relative; }
.project-live-badge {
  position: absolute; top: 10px; left: 12px; z-index: 2; display: inline-flex; align-items: center; gap: 6px;
  font: 600 10px/1 var(--latin); letter-spacing: .08em; color: var(--primary);
  background: var(--surface); border: 1px solid var(--line-strong); padding: 5px 9px; border-radius: 100px;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), .12);
}
.project-live-badge i { width: 7px; height: 7px; border-radius: 50%; background: #16b36a; animation: ozlive 1.8s ease-out infinite; }
@keyframes ozlive { 0% { box-shadow: 0 0 0 0 rgba(22, 179, 106, .55); } 70% { box-shadow: 0 0 0 7px rgba(22, 179, 106, 0); } 100% { box-shadow: 0 0 0 0 rgba(22, 179, 106, 0); } }
.project-live-badge.muted { color: var(--muted); font-family: var(--display); font-weight: 400; letter-spacing: 0; font-size: 11px; }
.ozdemo-box {
  display: grid; gap: 3px; margin: 14px 0 2px; padding: 12px 14px; border-radius: 12px;
  border: 1px solid var(--line-strong); background: var(--surface-soft); font-size: 13px; line-height: 1.7;
}
.ozdemo-box b { font: 600 13px/1.5 var(--latin); color: var(--primary); overflow-wrap: anywhere; }
.ozdemo-box span { color: var(--muted); }
.ozdemo-box.request b { font-family: var(--display); font-weight: 500; }
a.ozdemo-link { text-decoration: none; }
@media (prefers-reduced-motion: reduce) { .project-live-badge i { animation: none; } }

/* ------------------------------------------------------------------ เทคโนโลยี: จอแคบให้ชื่อขึ้นบรรทัดใหม่แทนการล้นกรอบ */
.tech-item > span { min-width: 0; }
@media (max-width: 420px) {
  .tech-item b, .tech-item small { white-space: normal; overflow-wrap: break-word; }
}

/* ------------------------------------------------------------------ การ์ดผลงาน: กดเปิดเดโมจากหน้าการ์ดได้เลย */
article.project-card { position: relative; }
.project-card-main {
  display: flex; flex-direction: column; flex: 1 1 auto; width: 100%; min-width: 0;
  margin: 0; padding: 0; border: 0; background: none; color: inherit; font: inherit; text-align: left; cursor: pointer;
}
.project-card-main:focus-visible { outline: 2px solid var(--primary); outline-offset: -3px; border-radius: 16px; }
.project-card-main > .project-info { padding-bottom: 0; }
/* ใช้ padding แนวนอน/ล่างชุดเดียวกับ .project-info ของดีไซน์ทุกขนาดจอ */
.project-info.project-actions { flex: 0 0 auto; padding-top: 0; }
.project-actions-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  border-top: 1px solid var(--line); padding-top: 14px; margin-top: 16px;
}
.project-demo.button { min-height: 40px; padding: 8px 16px; font-size: 14px; gap: 7px; }
.project-demo .icon { width: 16px; height: 16px; }
.project-more {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 2px; margin-left: auto;
  border: 0; background: none; cursor: pointer; font: 400 14px/1.4 var(--display); color: var(--primary);
}
.project-more .icon { width: 16px; height: 16px; transition: transform .2s; }
.project-more:hover .icon { transform: translateX(3px); }
.project-more:focus-visible, a.project-demo:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .project-more .icon { transition: none; } }