/* ============================================================
   ขอเพลง — stylesheet
   ธีม: MWIT Open House · จุดแลกของ
   แนวคิด: "บัตรคิว" — ทุกคำขอคือตั๋วใบหนึ่งในแถวจุดแลกของ
   ขาว/ฟ้า มินิมอล ใช้เส้นประ+รอยบากแทนรอยปรุตั๋วจริง
   Kanit (เนื้อหา) + JetBrains Mono (เลขตั๋ว ป้ายระบบ)
   ============================================================ */

:root {
  --paper:       #F6F9FF;
  --panel:       #FFFFFF;
  --panel-2:     #EEF3FC;
  --ink:         #101B2D;
  --muted:       #5B6B84;
  --dim:         #97A5B8;
  --line:        #E3E9F3;
  --line-strong: #CCD8EC;

  --accent:        #155EEF;
  --accent-strong: #0B3FC7;
  --accent-soft:   #E9F1FF;
  --accent-line:   rgba(21, 94, 239, .28);

  --ok:      #17A34A;
  --ok-soft: rgba(23, 163, 74, .10);
  --warn:      #C2790A;
  --warn-soft: rgba(194, 121, 10, .10);
  --danger:      #E23A5D;
  --danger-soft: rgba(226, 58, 93, .09);

  --r-sm: 10px;
  --r:    14px;
  --r-lg: 22px;

  --wrap: 560px;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --stage-pad: 22px;

  --shadow-sm: 0 1px 2px rgba(16, 27, 45, .05);
  --shadow-md: 0 10px 28px -16px rgba(16, 27, 45, .18);
  --shadow-lg: 0 22px 48px -22px rgba(16, 27, 45, .22);
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Kanit', system-ui, sans-serif;
  font-weight: 300;
  font-size: 15px;
  line-height: 1.65;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* แสงฟ้าจาง ๆ จากด้านบน — เบามาก ไม่แข่งกับเนื้อหา */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(680px 380px at 50% -8%, rgba(21, 94, 239, .09), transparent 68%);
}

.page-admin::before { display: none; }

a { color: inherit; }

::selection { background: var(--accent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   แถบสถานะด้านบน
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(246, 249, 255, .82);
  border-bottom: 1px solid var(--line);
}

.topbar__in {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 12px 20px;
  font-size: 12.5px;
  color: var(--muted);
}

.topbar__brand {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--dim);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-strong);
  flex-shrink: 0;
  transition: background .3s;
}

.dot[data-on="1"] {
  background: var(--accent);
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(21, 94, 239, .35); }
  70%  { box-shadow: 0 0 0 7px rgba(21, 94, 239, 0); }
  100% { box-shadow: 0 0 0 0 rgba(21, 94, 239, 0); }
}

/* ============================================================
   หัวเรื่อง
   ============================================================ */
.masthead {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 52px 20px 30px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.eyebrow::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-line), transparent);
}

.masthead__title {
  margin: 0;
  font-size: clamp(32px, 8.5vw, 48px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ink);
}

.masthead__sub {
  margin: 12px 0 0;
  max-width: 36ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

/* ============================================================
   โครง
   ============================================================ */
.wrap {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px 72px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: 22px;
  margin-bottom: 14px;
}

.card__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
}

.count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--dim);
}

/* ============================================================
   ประกาศ
   ============================================================ */
.notice {
  padding: 14px 18px;
  margin-bottom: 14px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--r);
  color: #0B3FC7;
  font-size: 14px;
  line-height: 1.55;
}

/* ============================================================
   บัตรคิว — เพลงที่กำลังเล่น (signature element)
   รอยบากซ้าย-ขวา + เส้นประ เลียนแบบตั๋วฉีก
   ============================================================ */
.stage {
  position: relative;
  padding: var(--stage-pad) var(--stage-pad) 20px;
  margin-bottom: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
}

.stage__label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
}

.stage__body {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.stage__art {
  width: 92px;
  height: 92px;
  object-fit: cover;
  border-radius: var(--r);
  background: var(--panel-2);
  flex-shrink: 0;
}

.stage__meta { flex: 1; min-width: 0; }

.stage__title {
  margin: 0;
  font-size: 18.5px;
  font-weight: 500;
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--ink);
}

.stage__channel {
  margin: 5px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.stage__from {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--accent-strong);
}

.stage__from:empty { display: none; }

/* รอยตั๋วฉีก — เส้นประเต็มความกว้างการ์ด พร้อมรอยบากวงกลมสองข้าง */
.stage__tear {
  position: relative;
  height: 0;
  margin: 18px calc(var(--stage-pad) * -1);
  border-top: 1.5px dashed var(--line-strong);
}

.stage__tear::before,
.stage__tear::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 50%;
}

.stage__tear::before { left: -9px; }
.stage__tear::after  { right: -9px; }

/* ============================================================
   แถบเวลา
   ============================================================ */
.progress { margin-top: 4px; }

.progress__bar {
  position: relative;
  height: 3px;
  background: var(--panel-2);
  border-radius: 2px;
}

.progress__bar span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--accent);
  border-radius: 2px;
  transition: width .95s linear;
}

.progress__bar span::after {
  content: '';
  position: absolute;
  right: -3px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px #fff, 0 1px 4px rgba(21, 94, 239, .4);
  transform: translateY(-50%);
}

.progress__time {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--dim);
}

/* ============================================================
   ฟอร์ม
   ============================================================ */
.form { padding-bottom: 24px; }

.field { display: block; margin-bottom: 16px; }

.field__label {
  display: block;
  margin-bottom: 8px;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--muted);
}

.field__label em {
  font-style: normal;
  opacity: .75;
}

.input {
  width: 100%;
  padding: 14px 16px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  font-weight: 300;
  transition: border-color .16s, background .16s, box-shadow .16s;
}

.input::placeholder { color: var(--dim); }

.input:focus {
  outline: none;
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; min-width: 0; }

.hp { position: absolute; left: -9999px; opacity: 0; }

.preview {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 12px;
  margin-bottom: 16px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  animation: slip .22s ease-out;
}

@keyframes slip {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}

.preview img {
  width: 54px;
  height: 54px;
  object-fit: cover;
  border-radius: var(--r-sm);
  flex-shrink: 0;
  background: #fff;
}

.preview__title {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--ink);
}

.preview__channel {
  margin: 3px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
}

.form__hint {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--dim);
  text-align: center;
}

.form__msg {
  margin: 14px 0 0;
  padding: 13px 16px;
  border-radius: var(--r);
  font-size: 14px;
  line-height: 1.5;
  animation: slip .22s ease-out;
}

.form__msg[data-kind="ok"] {
  background: var(--ok-soft);
  border: 1px solid rgba(23, 163, 74, .25);
  color: #0F7A38;
}

.form__msg[data-kind="err"] {
  background: var(--danger-soft);
  border: 1px solid rgba(226, 58, 93, .25);
  color: #C22548;
}

/* ============================================================
   ปุ่ม
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .08s;
}

.btn:hover:not(:disabled) { background: #E4EBF9; border-color: var(--line-strong); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.btn--primary {
  width: 100%;
  padding: 16px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 10px 24px -10px rgba(21, 94, 239, .55);
}

.btn--primary:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn--ghost { background: transparent; box-shadow: none; }

.btn--danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(226, 58, 93, .3);
}

.btn--danger:hover:not(:disabled) { background: var(--danger-soft); }

.btn--sm {
  padding: 7px 12px;
  font-size: 12.5px;
  border-radius: var(--r-sm);
}

/* ============================================================
   คิวถัดไป — เลขตั๋วคั่นด้วยเส้นประ
   ============================================================ */
.queue { list-style: none; margin: 0; padding: 0; }

.queue li {
  display: flex;
  gap: 13px;
  align-items: center;
  padding: 12px 0;
}

.queue li + li { border-top: 1px dashed var(--line); }

.pos {
  flex: 0 0 auto;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding-right: 13px;
  border-right: 1px dashed var(--line-strong);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--dim);
  white-space: nowrap;
}

.queue li:first-child .pos {
  color: var(--accent);
  border-right-color: var(--accent-line);
}

.q-art {
  width: 46px;
  height: 46px;
  object-fit: cover;
  border-radius: var(--r-sm);
  background: var(--panel-2);
  flex-shrink: 0;
}

.q-meta { flex: 1; min-width: 0; }

.q-title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 400;
  line-height: 1.42;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.q-sub {
  margin: 3px 0 0;
  font-size: 12px;
  color: var(--dim);
}

.q-sub b { font-weight: 400; color: var(--muted); }

.empty {
  margin: 0;
  padding: 6px 0 2px;
  color: var(--dim);
  font-size: 14px;
}

/* ============================================================
   คำขอของฉัน
   ============================================================ */
.mine { list-style: none; margin: 0; padding: 0; }

.mine li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
}

.mine li + li { border-top: 1px dashed var(--line); }

.mine__text { flex: 1; min-width: 0; font-size: 14px; line-height: 1.5; color: var(--ink); }

.mine__reason {
  margin: 3px 0 0;
  font-size: 12.5px;
  color: var(--dim);
}

.tag {
  flex-shrink: 0;
  padding: 3px 10px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag[data-s="pending"]  { color: var(--warn);   background: var(--warn-soft); }
.tag[data-s="approved"] { color: var(--ok);     background: var(--ok-soft); }
.tag[data-s="playing"]  { color: #fff; background: var(--accent); }
.tag[data-s="played"]   { color: var(--dim);    background: var(--panel-2); }
.tag[data-s="rejected"] { color: var(--danger); background: var(--danger-soft); }

/* ============================================================
   เล่นไปแล้ว
   ============================================================ */
.history { list-style: none; margin: 0; padding: 0; }

.history li {
  padding: 9px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--dim);
}

.history li + li { border-top: 1px dashed var(--line); }

/* ============================================================
   หน้าแอดมิน
   ============================================================ */
.admin-wrap {
  position: relative;
  z-index: 1;
  max-width: 1160px;
  margin: 0 auto;
  padding: 22px 20px 64px;
}

.admin-bar {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 14px 18px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
}

.admin-bar h1 {
  margin: 0 auto 0 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--ink);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--muted);
}

.cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
}

@media (max-width: 900px) {
  .cols { grid-template-columns: 1fr; }
}

.row {
  display: flex;
  gap: 13px;
  padding: 15px 0;
}

.row + .row { border-top: 1px dashed var(--line); }

.row__art {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--r-sm);
  background: var(--panel-2);
  flex-shrink: 0;
}

.row__main { flex: 1; min-width: 0; }

.row__title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--ink);
  word-break: break-word;
}

.row__raw {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--dim);
  word-break: break-all;
}

.row__by {
  margin: 5px 0 0;
  font-size: 12.5px;
  color: var(--dim);
}

.row__by b { font-weight: 400; color: var(--muted); }

.row__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 11px;
}

.linkbox { display: flex; gap: 6px; margin-top: 11px; }
.linkbox .input { padding: 9px 12px; font-size: 13px; }

.cache {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 9px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.cache[data-c="none"]        { color: var(--dim);    background: var(--panel-2); }
.cache[data-c="downloading"] { color: var(--warn);   background: var(--warn-soft); }
.cache[data-c="ready"]       { color: var(--ok);     background: var(--ok-soft); }
.cache[data-c="failed"]      { color: var(--danger); background: var(--danger-soft); }

.drag-handle {
  align-self: center;
  padding: 4px 2px;
  font-size: 15px;
  color: var(--dim);
  cursor: grab;
  touch-action: none;
}

.row.dragging { opacity: .4; }
.row.drop-target { box-shadow: inset 0 2px 0 var(--accent); }

input[type="range"] { accent-color: var(--accent); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  z-index: 50;
  max-width: 90vw;
  padding: 13px 20px;
  background: var(--ink);
  border-radius: var(--r);
  color: #fff;
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateX(-50%) translateY(14px);
  pointer-events: none;
  transition: opacity .22s, transform .22s;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast[data-kind="err"] { background: var(--danger); }

.login {
  position: relative;
  z-index: 1;
  max-width: 340px;
  margin: 16vh auto 0;
  padding: 0 20px;
}

/* ============================================================
   จอฉาย
   ============================================================ */
.page-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 5vh 5vw;
}

.screen {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1440px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 6vw;
  align-items: center;
}

@media (max-width: 900px) {
  .screen { grid-template-columns: 1fr; gap: 5vh; }
}

.screen__art {
  width: 100%;
  max-width: 44vh;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 24px;
  background: var(--panel-2);
  box-shadow: var(--shadow-lg);
  margin-bottom: 4vh;
}

.screen__title {
  margin: 0;
  font-size: clamp(30px, 4.2vw, 58px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ink);
}

.screen__channel {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.5vw, 21px);
  color: var(--muted);
}

.screen__from {
  margin: 22px 0 0;
  font-size: clamp(17px, 1.9vw, 27px);
  color: var(--accent);
}

.screen__next h3 {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dim);
}

.screen__next ol { list-style: none; margin: 0; padding: 0; }

.screen__next li {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 15px 0;
  font-size: clamp(15px, 1.4vw, 21px);
  color: var(--ink);
}

.screen__next li + li { border-top: 1px dashed var(--line); }

.screen__next .pos {
  flex: 0 0 auto;
  min-width: 50px;
  padding-right: 16px;
  border-right: 1px dashed var(--line-strong);
  font-size: clamp(12px, 1vw, 15px);
}

.screen__next li:first-child .pos {
  color: var(--accent);
  border-right-color: var(--accent-line);
}

/* ============================================================
   จอเล็ก · ลดการเคลื่อนไหว
   ============================================================ */
@media (max-width: 380px) {
  .field-row { flex-direction: column; gap: 0; }
  .stage__art { width: 74px; height: 74px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}