/* ============================================================
   HSEFZID SELECT · PIXEL DOPAMINE
   8-bit 像素风 × 欢快明亮多巴胺配色 · 硬边描边 · 按压物理
   ============================================================ */

@font-face {
  font-family: "Zpix";
  src: url("fonts/zpix.woff2") format("woff2");
  font-weight: normal; font-display: swap;
}
@font-face {
  font-family: "PressStart";
  src: url("fonts/press-start.woff2") format("woff2");
  font-weight: normal; font-display: swap;
}

:root {
  --ink: #241a45;
  --paper: #fff6e0;
  --sun: #ffd028;
  --pink: #ff5d8f;
  --blue: #3d8bff;
  --aqua: #2ec4b6;
  --orange: #ff8a3c;
  --grape: #8a5cf6;
  --green: #35c45e;
  --muted: #8b7fb0;
  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
  --px: "Zpix", "PingFang SC", "Microsoft YaHei", monospace;
  --px-en: "PressStart", "Zpix", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--px);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(36, 26, 69, 0.05) 2px, transparent 2px),
    linear-gradient(90deg, rgba(36, 26, 69, 0.05) 2px, transparent 2px);
  background-size: 24px 24px;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: none;
}

::selection { background: var(--sun); color: var(--ink); }
::-webkit-scrollbar { width: 14px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: var(--ink); border: 3px solid var(--paper); }

/* ── 顶部多巴胺彩带 ── */
.rainbow-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 10px; z-index: 60;
  background: repeating-linear-gradient(90deg,
    var(--pink) 0 80px, var(--sun) 80px 160px, var(--aqua) 160px 240px,
    var(--blue) 240px 320px, var(--grape) 320px 400px, var(--orange) 400px 480px);
  border-bottom: 3px solid var(--ink);
}

/* ── 像素大标题 ── */
.retro-h1 {
  font-family: var(--px-en); font-size: clamp(24px, 4vw, 40px);
  color: var(--ink); letter-spacing: 1px; line-height: 1.35;
}
.retro-h1 .hl { display: inline-block; color: #fff;
  background: var(--pink); border: 3px solid var(--ink);
  padding: 0 12px; transform: rotate(-1.2deg); }
.retro-h1 .hl.sun { background: var(--sun); color: var(--ink); }
.retro-h1 .hl.aqua { background: var(--aqua); color: var(--ink); }

.blink { animation: blinkStep 1.1s steps(2, start) infinite; }
@keyframes blinkStep { 50% { opacity: 0; } }

/* ═══ 像素按钮 ═══ */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 11px 26px;
  font-family: var(--px); font-size: 16px;
  color: var(--ink); cursor: pointer;
  background: #ffffff;
  border: 3px solid var(--ink); border-radius: 0;
  box-shadow: var(--shadow-sm);
  text-decoration: none; white-space: nowrap;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-primary { background: var(--sun); }
.btn-primary:hover { background: #ffe14d; }
.btn-danger { background: var(--pink); color: #fff; }
.btn-warning { background: var(--orange); color: #fff; }
.btn-ghost { background: transparent; }
.btn-block { display: flex; width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 14px; box-shadow: 2px 2px 0 var(--ink); }
.btn-text {
  display: inline-block; padding: 6px 16px; font-size: 14px; cursor: pointer;
  color: var(--ink); border: 3px solid var(--ink); background: #fff;
  box-shadow: var(--shadow-sm); font-family: var(--px); text-decoration: none;
}
.btn-text:hover { background: var(--sun); transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.btn-text:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--ink); }

/* ═══ 表单 ═══ */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: inline-block; font-size: 13px; margin-bottom: 7px; letter-spacing: .05em;
  background: var(--ink); color: #fff; padding: 3px 10px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px;
  font-family: var(--px); font-size: 16px; color: var(--ink);
  background: #fff; border: 3px solid var(--ink); border-radius: 0; outline: none;
  -webkit-appearance: none; appearance: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  background: #fffbe9;
  box-shadow: 0 0 0 4px rgba(255, 93, 143, .35);
}
.form-group select {
  cursor: pointer; padding-right: 34px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 12px) 55%;
  background-size: 6px 6px; background-repeat: no-repeat;
}
.form-group select option { background: #fff; }
.form-group input::placeholder { color: #b4a9d1; }

.checkbox-group { display: flex; gap: 8px; flex-wrap: wrap; }
.checkbox-group label {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font-size: 14px; background: #fff; color: var(--ink);
  border: 3px solid var(--ink); padding: 5px 12px; box-shadow: 2px 2px 0 var(--ink);
}
.checkbox-group label:has(input:checked) { background: var(--aqua); color: #fff; }
.checkbox-group input { width: 16px; height: 16px; accent-color: var(--ink); }

.alert {
  padding: 11px 16px; margin-bottom: 18px; border: 3px solid var(--ink);
  font-size: 14px; box-shadow: 2px 2px 0 var(--ink); background: #fff;
}
.alert-error { background: #ffe3e9; }
.alert-success { background: #dcffe6; }
.alert ul { list-style: none; }
.alert li::before { content: "■ "; }
.hint { font-size: 12px; color: var(--muted); line-height: 1.8; letter-spacing: .02em; }

/* ═══ 登录 / 改密 ═══ */
.login-wrapper {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 44px 18px; position: relative;
}
.login-box { width: min(94vw, 470px); background: #fffdf5;
  border: 4px solid var(--ink); box-shadow: 8px 8px 0 var(--ink);
  padding: 40px 38px 32px; position: relative;
  animation: popIn .45s steps(4, end);
}
.login-box .brand-seal {
  position: absolute; top: -40px; left: -40px; z-index: 5;
  width: 176px; height: 176px;
  border-radius: 50%; overflow: hidden;
  border: 5px solid var(--ink); background: #fff;
  box-shadow: 5px 5px 0 var(--ink);
  padding: 12px;
}
.login-box .brand-seal img {
  width: 100%; height: 100%; display: block;
  object-fit: contain; image-rendering: pixelated;
}
.login-box h1 { cursor: default; padding-left: 122px; padding-top: 24px; }
.login-box .sub { font-size: 12px; color: var(--muted); margin: 4px 0 24px; padding-left: 122px; letter-spacing: .05em; line-height: 1.9; }
.login-box h1 .t1 {
  display: block; font-family: var(--px-en); font-size: 30px; line-height: 1.35;
  color: var(--pink); text-shadow: 3px 3px 0 var(--ink); letter-spacing: .5px;
}
.login-box h1 .t2 {
  display: block; font-family: var(--px); font-size: 14px; letter-spacing: 2px;
  color: var(--ink); margin-bottom: 10px; margin-top: 4px;
}
@keyframes popIn { 0% { transform: scale(.9) translateY(10px); opacity: 0; } 100% { transform: none; opacity: 1; } }
.login-footer { margin-top: 18px; text-align: center; }
.login-footer a { color: var(--muted); font-size: 13px; }

/* ═══ 应用布局 ═══ */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 14px;
  max-width: 1100px; margin: 0 auto; padding: 38px 20px 14px;
}
.user-info { font-size: 13px; color: var(--muted); margin-top: 8px; letter-spacing: .04em; }
.user-info b { color: var(--ink); }

.selection-container { max-width: 1100px; margin: 0 auto; padding: 8px 20px 100px; display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: start; }
@media (max-width: 860px) { .selection-container { grid-template-columns: 1fr; } }

.day-column {
  background: #fffdf5; border: 4px solid var(--ink); box-shadow: 8px 8px 0 var(--ink);
  padding: 20px 18px 22px;
}
.day-column h2 {
  font-family: var(--px-en); font-size: 16px; letter-spacing: 1px; margin-bottom: 8px;
  display: flex; align-items: center; gap: 10px;
}
.day-column h2 .day-tag {
  display: inline-block; color: #fff; padding: 3px 10px; border: 3px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink); font-family: var(--px); font-size: 15px; letter-spacing: 0;
}
.day-column:nth-child(1) h2 .day-tag { background: var(--pink); }
.day-column:nth-child(2) h2 .day-tag { background: var(--blue); }
.day-column h2 .count { margin-left: auto; font-size: 11px; color: var(--muted); font-family: var(--px); letter-spacing: 0; }
.confirmed-badge {
  display: inline-block; margin: 8px 0 14px; padding: 5px 12px; font-size: 13px;
  background: var(--green); color: #fff; border: 3px solid var(--ink); box-shadow: 2px 2px 0 var(--ink);
}

.club-list { display: grid; gap: 13px; }
.club-card {
  position: relative; cursor: pointer; padding: 12px 15px 11px 19px;
  background: #fff; border: 3px solid var(--ink); box-shadow: 4px 4px 0 var(--ink);
  transition: transform .06s steps(2), box-shadow .06s steps(2);
  overflow: hidden;
}
.club-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px;
  background: var(--blue); border-right: 3px solid var(--ink);
}
.club-card:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.club-card:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 var(--ink); }
.club-card .club-name { font-size: 17px; letter-spacing: .03em; }
.club-card .club-info { font-size: 12px; color: #6a5f96; margin-top: 4px; line-height: 1.7; }
.club-card .club-quota { margin-top: 8px; font-size: 13px; }
.q-ok { color: #0c9c49; }
.q-full { color: #d7263d; }
.q-gradeno { color: #b3a8d8; font-size: 12px; }

.club-card.selected {
  background: #fff4b0; transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink);
  animation: jiggle .35s steps(4);
}
.club-card.selected::after {
  content: "★"; position: absolute; right: 13px; top: 9px;
  color: var(--ink); font-size: 18px;
  animation: starPop .3s steps(3);
}
@keyframes jiggle { 0%,100% { transform: translate(-2px,-2px); } 50% { transform: translate(0,0); } }
@keyframes starPop { from { transform: scale(.2) rotate(-90deg); } to { transform: none; } }

.club-card.disabled {
  opacity: .42; cursor: not-allowed; filter: saturate(.35);
  background: repeating-linear-gradient(45deg, #f6f2e4 0 8px, #e8e3d0 8px 16px);
}
.club-card.disabled:hover { transform: none; box-shadow: 4px 4px 0 var(--ink); }
.club-card.confirmed { background: #e4ffe9; cursor: default; }
.club-card.confirmed::before { background: var(--green); }
.club-card.confirmed:hover { transform: none; }

.confirm-btn {
  width: 100%; margin-top: 18px; padding: 13px;
  font-family: var(--px); font-size: 17px; letter-spacing: .1em;
  cursor: pointer; border: 3px solid var(--ink); border-radius: 0;
}
.confirm-btn.gray { background: #d5cfe3; color: #5d5676; }
.confirm-btn.blue { background: var(--sun); color: var(--ink); box-shadow: var(--shadow-sm); animation: ready .4s steps(3); }
.confirm-btn.blue:hover { background: #ffe14d; }
.confirm-btn.blue:active { transform: translate(2px,2px); box-shadow: 1px 1px 0 var(--ink); }
.confirm-btn:disabled { opacity: .5; cursor: not-allowed; }
@keyframes ready { 0% { transform: scale(.96); } 60% { transform: scale(1.03); } 100% { transform: scale(1); } }

/* ═══ 管理后台 ═══ */
.admin-wrap { max-width: 1240px; margin: 0 auto; padding: 0 20px 90px; }
.admin-card {
  background: #fffdf5; border: 4px solid var(--ink); box-shadow: var(--shadow);
  padding: 22px; margin-bottom: 26px;
}
.admin-card > h2 {
  font-size: 15px; letter-spacing: .05em; margin-bottom: 18px;
  background: var(--ink); color: #fff; display: inline-block; padding: 5px 14px;
}
.admin-card h2 .sub { color: var(--sun); font-size: 12px; margin-left: 8px; font-weight: normal; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0 20px; }
.inline-form { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.inline-form label { font-size: 13px; background: var(--ink); color: #fff; padding: 3px 9px; display: inline-block; }
.inline-form input {
  font-family: var(--px); font-size: 15px; padding: 9px 12px;
  border: 3px solid var(--ink); background: #fff; outline: none;
}
.inline-form input:focus { box-shadow: 0 0 0 4px rgba(255, 93, 143, .3); }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left; padding: 10px 12px; font-weight: normal; letter-spacing: .04em;
  background: var(--ink); color: #fff; border: 2px solid var(--ink); white-space: nowrap;
}
.data-table td { padding: 9px 12px; border: 2px solid var(--ink); background: #fffdf5; white-space: nowrap; }
.data-table tbody tr:nth-child(even) td { background: #fbf3da; }
.data-table tbody tr:hover td { background: #e8f7ff; }
.edit-row td { background: #fff4b0 !important; padding: 20px !important; }
.edit-row .form-group label { background: var(--blue); }

.adv-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 12px; }
.adv-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 4px 8px 4px 12px;
  font-size: 13px; background: #dcffe6; color: #0c5c31;
  border: 3px solid var(--ink); box-shadow: 2px 2px 0 var(--ink);
}
.adv-chip.released { background: #ffe3e9; color: #8c1428; }
.adv-chip .rm {
  border: 0; background: var(--ink); color: #fff; cursor: pointer;
  width: 20px; height: 20px; font-size: 12px; line-height: 1;
}
.adv-chip .rm:hover { background: #d7263d; }

.student-pool {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 6px;
  max-height: 250px; overflow: auto; padding: 10px; margin-top: 8px;
  border: 3px dashed var(--ink); background: #fff;
}
.student-check {
  display: flex; align-items: center; gap: 7px; font-size: 12.5px; cursor: pointer;
  border: 2px solid transparent; padding: 4px 7px;
}
.student-check:hover { background: #fff4b0; }
.student-check input { width: 15px; height: 15px; accent-color: var(--ink); }
.student-check:has(input:disabled) { opacity: .4; }
.student-check:has(input:checked:not(:disabled)) { background: #dcffe6; border-color: var(--ink); }
.picker-count { background: var(--sun) !important; color: var(--ink) !important; margin-left: 6px; }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 26px; }
@media (max-width: 860px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat-card { padding: 16px 18px; background: #fff; border: 3px solid var(--ink); box-shadow: 3px 3px 0 var(--ink); }
.stat-card .n { font-family: var(--px-en); font-size: 26px; }
.stat-card .k { font-size: 12px; color: var(--muted); margin-top: 6px; letter-spacing: .06em; }
.stat-card.c1 { border-top: 10px solid var(--pink); }
.stat-card.c2 { border-top: 10px solid var(--sun); }
.stat-card.c3 { border-top: 10px solid var(--blue); }
.stat-card.c4 { border-top: 10px solid var(--green); }

.px-flag { display: inline-block; padding: 1px 8px; font-size: 12px; background: #fff; border: 2px solid var(--ink); }
.px-flag.mon { background: var(--pink); color: #fff; }
.px-flag.tue { background: var(--blue); color: #fff; }

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

/* ═══ 移动端适配 · 紧凑卡片 ═══ */
@media (max-width: 700px) {
  body { background-size: 16px 16px; }
  .login-wrapper { padding: 24px 12px; }
  .login-box { width: 100%; padding: 26px 16px 22px; box-shadow: 4px 4px 0 var(--ink); }
  .login-box .brand-seal { top: -16px; left: -16px; width: 84px; height: 84px; border-width: 4px; padding: 6px; box-shadow: 3px 3px 0 var(--ink); }
  .login-box h1 { padding-left: 64px; padding-top: 10px; }
  .login-box h1 .t1 { font-size: 24px; }
  .login-box h1 .t2 { font-size: 12px; letter-spacing: 1px; margin-bottom: 8px; }
  .login-box .sub { font-size: 11px; padding-left: 64px; margin: 2px 0 16px; }
  .form-group { margin-bottom: 14px; }
  .form-group label { font-size: 12px; padding: 2px 8px; }
  .form-group input, .form-group select { padding: 9px 10px; font-size: 15px; }
  .btn { font-size: 15px; padding: 9px 18px; }
  .btn-block { width: 100%; }
  .alert { font-size: 12.5px; padding: 8px 12px; }

  .page-header { padding: 34px 8px 10px; flex-wrap: wrap; gap: 8px; }
  .retro-h1 { font-size: 22px !important; }
  .page-header .btn-text, .page-header .btn { padding: 6px 12px; font-size: 13px; }

  .selection-container { padding: 4px 6px 40px; gap: 12px; grid-template-columns: 1fr; }
  .day-column { padding: 12px 10px 14px; box-shadow: 4px 4px 0 var(--ink); }
  .day-column h2 { font-size: 13px; }
  .day-column h2 .day-tag { padding: 2px 8px; font-size: 13px; }
  .club-list { gap: 8px; }
  .club-card { padding: 9px 11px 8px 14px; box-shadow: 3px 3px 0 var(--ink); }
  .club-card::before { width: 5px; }
  .club-card .club-name { font-size: 14px; }
  .club-card .club-info { font-size: 11px; margin-top: 2px; line-height: 1.55; }
  .club-card .club-quota { margin-top: 5px; font-size: 12px; }
  .club-card:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
  .confirmed-badge { margin: 6px 0 10px; padding: 4px 10px; font-size: 12px; }
  .confirm-btn { margin-top: 12px; padding: 11px; font-size: 15px; }

  .admin-wrap, .page-header { max-width: 100%; }
  .stat-row { gap: 8px; margin-bottom: 16px; }
  .stat-card { padding: 10px 12px; box-shadow: 2px 2px 0 var(--ink); }
  .stat-card .n { font-size: 20px; }
  .stat-card .k { font-size: 10px; }
  .stat-card.c1, .stat-card.c2, .stat-card.c3, .stat-card.c4 { border-top-width: 6px; }
  .admin-card { padding: 14px 12px; margin-bottom: 16px; box-shadow: 4px 4px 0 var(--ink); }
  .admin-card > h2 { font-size: 13px; padding: 4px 10px; }
  .form-grid { gap: 0 10px; }
  .checkbox-group label { padding: 3px 10px; font-size: 13px; }
  .data-table { font-size: 11.5px; }
  .data-table th, .data-table td { padding: 6px 8px; }
  .edit-row td { padding: 12px 10px !important; }
  .adv-chip { font-size: 11px; padding: 3px 6px 3px 9px; }
  .student-check { font-size: 11px; }
  .student-pool { grid-template-columns: repeat(auto-fill, minmax(108px, 1fr)); }
  .inline-form input { font-size: 13px; }
}