/* ─────────────────────────────────────────────────────────────
   CAUMC 皮肤站 · 前端
   语汇：1-bit 早期桌面窗口 —— 纸白底、墨黑 1.5px 描边、全直角、
   偏移硬阴影、像素字体用于窗口标题与编号；方块世界的青金蓝做天空。
   ───────────────────────────────────────────────────────────── */

@font-face {
  font-family: "Archivo";
  src: url("./fonts/archivo-latin-wdth-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "VT323";
  src: url("./fonts/vt323-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  --paper: #FFFFFF;
  --ink: #1E1E1D;
  --ink-2: #5E5E5A;
  --ink-3: #8A8A85;
  --chrome: #DEDEDB;
  --bone: #ECECE9;
  --sky: #8FB3FF;
  --sky-2: #A9C6FF;
  --sky-3: #C7DAFF;
  --lapis: #2449CF;
  --grass: #3D8B2F;
  --grass-2: #7FA35B;
  --nether: #9A3324;
  --lava: #F2C14E;

  --sans: "Archivo", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --pix: "VT323", ui-monospace, "SF Mono", Menlo, monospace;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --line: 1.5px solid var(--ink);
  --shadow: 3px 3px 0 rgba(30, 30, 29, .35);
  --shadow-lg: 6px 6px 0 rgba(30, 30, 29, .35);
  --gutter: clamp(16px, 4vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; border-radius: 0; }

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  /* 极淡的横向扫描线，给纸面一点密度，不抢内容 */
  background-image: repeating-linear-gradient(
    180deg,
    rgba(30, 30, 29, .028) 0 1px,
    transparent 1px 4px
  );
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 2px solid var(--lapis); outline-offset: 3px; }

a { color: var(--lapis); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.04em; line-height: 1.02; }
p { margin: 0; }
img { display: block; max-width: 100%; }
svg { display: block; }

/* ── 顶栏 ───────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 9px var(--gutter);
  background: var(--paper);
  border-bottom: var(--line);
  box-shadow: 0 3px 0 rgba(30, 30, 29, .12);
}

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none;
}
.brand:hover { text-decoration: none; }

/* 窗口三键：纯装饰，强化 1-bit 外壳的识别度 */
.dots { display: inline-flex; gap: 4px; }
.dots i { display: block; width: 7px; height: 7px; border: var(--line); background: var(--paper); }
.dots i:first-child { background: var(--ink); }

.brand b { font-weight: 600; letter-spacing: -.03em; font-size: 16px; }
.brand span {
  font-family: var(--pix); font-size: 17px; letter-spacing: .08em;
  color: var(--ink-3);
}

.nav { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.chip {
  display: inline-block;
  padding: 3px 10px;
  background: var(--paper);
  color: var(--ink);
  border: var(--line);
  box-shadow: 2px 2px 0 rgba(30, 30, 29, .3);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  transition: background-color .06s linear, color .06s linear, transform .06s linear, box-shadow .06s linear;
}
.chip:hover { background: var(--ink); color: var(--paper); text-decoration: none; }
.chip:active { transform: translate(2px, 2px); box-shadow: none; }
.chip-ink { background: var(--ink); color: var(--paper); }
.chip-ink:hover { background: var(--lapis); border-color: var(--lapis); }
.chip-lg { padding: 7px 18px; font-size: 15px; font-weight: 600; box-shadow: 3px 3px 0 rgba(30, 30, 29, .35); }

/* ── 窗口 ───────────────────────────────────────────────── */
.win {
  position: relative;
  background: var(--paper);
  border: var(--line);
  box-shadow: var(--shadow);
}
.win::after {
  /* 内层高光：让窗口像真的浮在桌面上 */
  content: "";
  position: absolute; inset: 0;
  border: 1px solid rgba(255, 255, 255, .9);
  pointer-events: none;
  mix-blend-mode: overlay;
}
.win-title {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  height: 26px; padding: 0 8px;
  background: var(--ink); color: var(--paper);
  font: 19px/1 var(--pix); letter-spacing: .06em;
  text-transform: uppercase;
  user-select: none;
}
.win-title .label { display: flex; align-items: center; gap: 8px; }
.win-title .label i { display: block; width: 7px; height: 7px; background: var(--paper); }
.win-title .ctrl { display: flex; gap: 4px; }
.win-title .ctrl i {
  display: block; width: 6px; height: 6px;
  border: 1px solid var(--paper);
}
.win-title .ctrl i:last-child { background: var(--paper); }
.win-body { padding: 22px; }

/* ── 首屏 ───────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: clamp(48px, 8vw, 92px) var(--gutter) clamp(120px, 16vw, 190px);
  border-bottom: var(--line);
  overflow: hidden;
  isolation: isolate;
}

/* 像素天空：三层色阶 + 太阳 + 云 + 远山近草 */
.scene {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -1;
  image-rendering: pixelated;
  shape-rendering: crispEdges;
}
.scene .clouds { animation: drift 48s steps(48) infinite alternate; }
@keyframes drift {
  from { transform: translateX(0); }
  to { transform: translateX(22px); }
}
@media (prefers-reduced-motion: reduce) {
  .scene .clouds { animation: none; }
}

.hero-inner {
  position: relative; z-index: 1;
  max-width: 760px; margin: 0 auto;
  text-align: center;
}

.hero .kicker {
  display: inline-block; margin-bottom: 20px;
  padding: 3px 10px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 2px 2px 0 rgba(30, 30, 29, .3);
  font-family: var(--pix); font-size: 17px; letter-spacing: .12em;
  color: var(--ink);
}

.hero h1 {
  font-size: clamp(34px, 6.2vw, 60px);
  letter-spacing: -.055em;
  text-wrap: balance;
  color: var(--ink);
}
.hero h1 em {
  font-style: normal;
  display: inline-block;
  background: var(--paper);
  box-shadow: 4px 4px 0 rgba(30, 30, 29, .4);
  padding: 0 .16em;
  margin: 2px 0;
}

.hero p.lead {
  margin: 20px auto 0; max-width: 560px;
  font-size: 16px; color: #12203C;
}

.hero .actions {
  margin-top: 30px;
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}

.hero .addr {
  margin-top: 28px;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 12px;
  background: var(--paper);
  border: var(--line);
  box-shadow: 3px 3px 0 rgba(30, 30, 29, .35);
  font-family: var(--pix); font-size: 20px; letter-spacing: .08em;
}
.hero .addr span { font-family: var(--sans); font-size: 11px; letter-spacing: .06em; color: var(--ink-3); text-transform: uppercase; }
.hero .addr .lamp {
  width: 8px; height: 8px; background: var(--grass);
  border: 1px solid var(--ink);
}

/* 抖动分隔带：两行交错网点 */
.dither {
  height: 12px;
  border-bottom: var(--line);
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, var(--ink) 50%, transparent 50%),
    linear-gradient(90deg, transparent 50%, var(--ink) 50%);
  background-size: 12px 6px, 12px 6px;
  background-position: 0 0, 6px 6px;
  background-repeat: repeat-x;
  opacity: .55;
}

/* ── 主区域 ─────────────────────────────────────────────── */
.wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: clamp(32px, 4.5vw, 58px) var(--gutter) clamp(40px, 5vw, 64px);
}

.section-head {
  display: flex; align-items: baseline; gap: 14px;
  margin-bottom: 22px;
}
.section-head h2 { font-size: 22px; white-space: nowrap; }
.section-head .rule {
  flex: 1; height: 0;
  border-top: var(--line);
  border-bottom: var(--line);
  margin-bottom: 5px;
  min-width: 20px;
}
.section-head .mono {
  font-family: var(--pix); font-size: 18px; letter-spacing: .1em;
  color: var(--ink-3); white-space: nowrap;
}

/* ── 步骤卡 ─────────────────────────────────────────────── */
.steps { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

.step {
  display: flex; flex-direction: column;
  transition: transform .08s linear, box-shadow .08s linear;
}
.step:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }

.step .strip {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 10px;
  background: var(--chrome);
  border-bottom: var(--line);
  font-family: var(--pix); font-size: 18px; letter-spacing: .1em;
  color: var(--ink-2);
}
.step .strip .ico { width: 16px; height: 16px; }
.step .body { padding: 16px 16px 18px; flex: 1; }
.step h3 { font-size: 16px; margin-bottom: 7px; }
.step p { font-size: 14px; color: var(--ink-2); }
.step .foot {
  border-top: 1px solid var(--chrome);
  padding: 8px 16px;
  font-family: var(--pix); font-size: 16px; letter-spacing: .08em;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 6px;
}

/* ── 提示条 ─────────────────────────────────────────────── */
.note {
  display: flex; gap: 12px; align-items: flex-start;
  margin-top: 26px; padding: 14px 16px;
  border: var(--line);
  background: var(--bone);
  box-shadow: 2px 2px 0 rgba(30, 30, 29, .22);
}
.note .bar { flex: none; width: 5px; align-self: stretch; background: var(--lava); border: 1px solid var(--ink); }
.note p { font-size: 13px; color: var(--ink-2); }
.note b { color: var(--ink); }

/* ── 表单 ───────────────────────────────────────────────── */
.auth { max-width: 470px; margin: clamp(28px, 5vw, 56px) auto; }

.auth .win-title { text-transform: uppercase; }

.field { margin-bottom: 15px; }
.field label {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 6px;
  font-size: 13px; font-weight: 600; letter-spacing: .01em;
  color: var(--ink-2);
}
.field label .idx {
  font-family: var(--pix); font-size: 15px; color: var(--ink-3); letter-spacing: .08em;
}
.field .hint { margin-top: 5px; font-size: 12px; color: var(--ink-3); }

input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: var(--line);
  box-shadow: inset 2px 2px 0 rgba(30, 30, 29, .07);
  outline: none;
  transition: border-color .06s linear, box-shadow .06s linear;
}
input:focus {
  border-color: var(--lapis);
  box-shadow: inset 2px 2px 0 rgba(36, 73, 207, .12), 3px 3px 0 rgba(36, 73, 207, .16);
}
input::placeholder { color: #A9A9A4; }

.captcha-row { display: flex; gap: 10px; align-items: stretch; }
.captcha-row input { flex: 1; }
.captcha {
  flex: none; width: 132px;
  border: var(--line);
  background: var(--bone);
  cursor: pointer;
  object-fit: cover;
  image-rendering: pixelated;
  box-shadow: 2px 2px 0 rgba(30, 30, 29, .22);
}
.captcha:hover { background: var(--chrome); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%;
  margin-top: 6px;
  padding: 10px 16px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  color: var(--paper);
  background: var(--lapis);
  border: var(--line);
  box-shadow: var(--shadow);
  transition: background-color .06s linear, transform .06s linear, box-shadow .06s linear;
}
.btn:hover { background: var(--ink); transform: translate(-1px, -1px); box-shadow: 4px 4px 0 rgba(30, 30, 29, .35); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 rgba(30, 30, 29, .35); }
.btn[disabled] { opacity: .55; cursor: progress; transform: none; }
.btn .arr { font-family: var(--pix); font-size: 18px; }

.msg {
  margin-bottom: 16px;
  padding: 9px 12px;
  font-size: 13px;
  border: var(--line);
  background: var(--bone);
  box-shadow: 2px 2px 0 rgba(30, 30, 29, .2);
}
.msg.err { border-color: var(--nether); color: var(--nether); }
.msg.ok { border-color: var(--grass); color: var(--grass); }
.msg:empty { display: none; }

.alt {
  margin-top: 20px; padding-top: 14px;
  border-top: var(--line);
  font-size: 13px; color: var(--ink-2);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* 认证页顶部的小装饰带 */
.stripe {
  height: 6px;
  background-image: linear-gradient(90deg, var(--ink) 50%, transparent 50%);
  background-size: 6px 6px;
  opacity: .5;
}

/* ── 页脚 ───────────────────────────────────────────────── */
.foot {
  margin-top: auto;
  border-top: var(--line);
  padding: 0 var(--gutter) 30px;
  font-size: 13px; color: var(--ink-2);
}
.foot .rule-gap { height: 10px; background: var(--bone); border-bottom: 1px solid var(--chrome); margin: 0 calc(var(--gutter) * -1) 18px; }
.foot .row { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; align-items: baseline; }
.foot .mono { font-family: var(--pix); font-size: 17px; letter-spacing: .08em; color: var(--ink-3); }

.hidden { display: none !important; }

/* ── 个人中心 ───────────────────────────────────────────── */
.kv { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; }
@media (max-width: 640px) { .kv { grid-template-columns: 1fr; } }
.kv > div { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.kv span {
  flex: none; font-size: 12px; color: var(--ink-3);
  letter-spacing: .06em; text-transform: uppercase;
  font-family: var(--pix); font-size: 15px;
}
.kv b { font-weight: 600; font-size: 15px; word-break: break-all; }
.kv b.mono { font-family: var(--mono); font-size: 13px; }

.badge {
  display: inline-block; padding: 1px 8px; font-size: 12px; font-weight: 600;
  border: 1.5px solid var(--ink); background: var(--bone); color: var(--ink);
}
.badge.ok { background: var(--grass); color: var(--paper); border-color: var(--ink); }
.badge.no { background: var(--nether); color: var(--paper); border-color: var(--ink); }

.grid2 { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

.players { display: flex; flex-direction: column; gap: 8px; }
.player-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 12px;
  border: 1.5px solid var(--ink);
  background: var(--paper);
  box-shadow: 2px 2px 0 rgba(30,30,29,.22);
}
.player-row .name { font-weight: 600; font-size: 15px; }
.player-row .pid { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.player-row button {
  flex: none; padding: 2px 10px; font-size: 12px; font-family: inherit; cursor: pointer;
  background: var(--paper); color: var(--nether); border: 1.5px solid var(--nether);
}
.player-row button:hover { background: var(--nether); color: var(--paper); }

.addplayer { display: flex; gap: 10px; margin-top: 14px; }
.addplayer input { flex: 1; }

.empty { padding: 14px; border: 1.5px dashed var(--chrome); color: var(--ink-3); font-size: 14px; }

/* ── 连接指引 ───────────────────────────────────────────── */
.lbl { font-size: 12px; color: var(--ink-3); margin-bottom: 8px; letter-spacing: .02em; }

.copyline { display: flex; gap: 8px; align-items: stretch; }
.copyline code {
  flex: 1; display: flex; align-items: center;
  padding: 8px 11px;
  font-family: var(--mono); font-size: 13.5px;
  color: var(--ink);
  background: var(--bone);
  border: 1.5px solid var(--ink);
  word-break: break-all;
}
.copy {
  flex: none; padding: 0 14px; cursor: pointer;
  font-family: inherit; font-size: 13px; font-weight: 600;
  color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: 2px 2px 0 rgba(30,30,29,.3);
}
.copy:hover { background: var(--ink); color: var(--paper); }
.copy:active { transform: translate(2px,2px); box-shadow: none; }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tab {
  padding: 4px 14px; cursor: pointer; font-family: inherit; font-size: 14px;
  color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: 2px 2px 0 rgba(30,30,29,.28);
}
.tab:hover { background: var(--bone); }
.tab.active { background: var(--ink); color: var(--paper); }

.steps-l { margin: 0; padding-left: 22px; counter-reset: s; }
.steps-l li {
  position: relative;
  margin-bottom: 10px;
  font-size: 14.5px; line-height: 1.7; color: var(--ink);
  padding-left: 6px;
}
.steps-l li::marker { font-family: var(--pix); font-size: 17px; color: var(--lapis); }
.steps-l b { color: var(--ink); background: var(--bone); padding: 0 4px; border: 1px solid var(--chrome); }

/* ── 首屏场景（v2：分离天空/地形/云，避免拉伸变形）─────── */
.hero {
  padding: clamp(46px, 7vw, 84px) var(--gutter) clamp(150px, 19vw, 220px);
  background: transparent;
}

.sky-bands {
  position: absolute; inset: 0; z-index: -3;
  background: linear-gradient(180deg,
    #8FB3FF 0 40%,
    #A9C6FF 40% 66%,
    #C7DAFF 66% 100%);
}

.sun {
  position: absolute; top: 10%; right: 12%; z-index: -2;
  width: 44px; height: 44px;
  background: #F2C14E;
  box-shadow: 0 0 0 7px rgba(255, 255, 255, .5);
}

.cloud { position: absolute; z-index: -2; }
.cloud.c1 { top: 15%; left: 8%; animation: drift 46s steps(46) infinite alternate; }
.cloud.c2 { top: 37%; right: 17%; opacity: .9; animation: drift 62s steps(62) infinite alternate-reverse; }

.terrain {
  position: absolute; inset: auto 0 0; width: 100%;
  height: clamp(92px, 13vw, 148px);
  z-index: -1;
  image-rendering: pixelated;
}

.dither { opacity: .32; }
@media (prefers-reduced-motion: reduce) {
  .cloud.c1, .cloud.c2 { animation: none; }
}

/* ── 首屏微调 v3 ─────────────────────────────────────────── */
.hero { padding-bottom: clamp(132px, 15vw, 186px); }
.terrain { height: clamp(130px, 17vw, 210px); }
.sun { width: 40px; height: 40px; box-shadow: 0 0 0 5px rgba(255,255,255,.42); }
.cloud.c1 { top: 13%; left: 7%; }
.cloud.c2 { top: 34%; right: 15%; }
.dither { opacity: .26; }

/* ── 动态点阵背景 ───────────────────────────────────────── */
/* 点阵画布：只在首屏内，层级压在内容之下、地形之上 */
.dot-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  display: block;
}
.hero .terrain, .hero .sun, .hero .cloud { z-index: 2; }
.hero-inner { z-index: 3; }

/* 内容层需要一点白纱，保证文字在点阵上依然清晰 */
body { background-color: var(--paper); }

.hero {
  background: linear-gradient(180deg,
    rgba(143, 179, 255, .50) 0%,
    rgba(169, 198, 255, .34) 52%,
    rgba(236, 236, 233, .55) 100%);
}

.wrap { position: relative; }

/* ── 皮肤面板 ───────────────────────────────────────────── */
.skin-wrap { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 26px; align-items: start; }
@media (max-width: 720px) { .skin-wrap { grid-template-columns: 1fr; } }

.skin-stage {
  display: flex; align-items: center; justify-content: center;
  padding: 20px 24px;
  background-color: var(--bone);
  background-image:
    linear-gradient(90deg, rgba(30,30,29,.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(30,30,29,.06) 1px, transparent 1px);
  background-size: 16px 16px;
  border: var(--line);
  box-shadow: inset 2px 2px 0 rgba(30, 30, 29, .07);
}

#char-canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.skin-side { min-width: 0; }

select {
  width: 100%;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: var(--line);
  box-shadow: inset 2px 2px 0 rgba(30, 30, 29, .07);
  outline: none;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%),
                    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px;
}

input[type="file"] {
  width: 100%;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--paper);
  border: var(--line);
}
input[type="file"]::file-selector-button {
  margin-right: 10px;
  padding: 4px 12px;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--bone);
  border: 1.5px solid var(--ink);
  cursor: pointer;
}
input[type="file"]::file-selector-button:hover { background: var(--ink); color: var(--paper); }

.btn[disabled] { opacity: .5; cursor: not-allowed; }