/* ============================================================
   方块资源站 - Minecraft 像素风样式
   ============================================================ */

:root {
  /* 草方块绿主题 */
  --grass:        #6aa84f;
  --grass-dark:   #4d7c37;
  --grass-light:  #8bc06c;
  --dirt:         #9c6b3c;
  --dirt-dark:    #6f4a28;
  --sky:          #7ec8e3;
  --sky-dark:     #4aa3c9;
  --ink:          #23211c;      /* 主文字 */
  --ink-soft:     #5c584d;      /* 次要文字 */
  --paper:        #fbf8ec;      /* 卡片底色 */
  --panel:        #efe9d6;      /* 面板底 */
  --border:       #1f1d18;      /* 硬边框 */
  --stone:        #a7a18f;
  --gold:         #f2c14e;

  --pixel-shadow: 4px 4px 0 rgba(0, 0, 0, .38);
  --pixel-shadow-sm: 3px 3px 0 rgba(0, 0, 0, .32);

  --font-pixel: 'Press Start 2P', 'Courier New', monospace;
  --font-body:  -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background-color: #e9e4d3;
  /* 像素网格背景 */
  background-image:
    linear-gradient(rgba(35,33,28,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35,33,28,.05) 1px, transparent 1px);
  background-size: 16px 16px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--grass-dark);
  border-bottom: 4px solid var(--border);
  box-shadow: 0 2px 0 rgba(0,0,0,.25);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.logo-text {
  font-family: var(--font-pixel);
  font-size: 13px;
  letter-spacing: 1px;
  text-shadow: 2px 2px 0 rgba(0,0,0,.4);
}

/* 草方块小图标 */
.logo-cube {
  display: inline-block;
  width: 22px;
  height: 22px;
  flex: none;
  background:
    linear-gradient(#7cb75a 0 0) top / 100% 8px no-repeat,
    linear-gradient(#5a9a3f 0 0) center / 100% 8px no-repeat,
    var(--dirt);
  border: 2px solid var(--border);
  box-shadow: 2px 2px 0 rgba(0,0,0,.3);
}

.nav-links { display: flex; gap: 6px; }

.nav-links a {
  color: #eef5e6;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 600;
  border: 3px solid transparent;
  border-radius: 4px;
  transition: background .15s, color .15s;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--grass);
  color: #fff;
  border-color: var(--border);
  box-shadow: var(--pixel-shadow-sm);
}

.nav-toggle {
  display: none;
  background: none;
  border: 3px solid var(--border);
  color: #fff;
  font-size: 18px;
  padding: 4px 12px;
  cursor: pointer;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(180deg, var(--sky) 0%, #9ed6ec 58%, #b9e4a9 58%, var(--grass-light) 62%, var(--grass) 100%);
  border-bottom: 4px solid var(--border);
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
  padding: 72px 20px 96px;
  text-align: center;
}

.hero-kicker {
  font-family: var(--font-pixel);
  font-size: 11px;
  color: #fff;
  letter-spacing: 3px;
  text-shadow: 2px 2px 0 rgba(0,0,0,.45);
  margin-bottom: 18px;
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1.35;
  color: #fff;
  text-shadow:
    3px 3px 0 rgba(0,0,0,.55),
    6px 6px 0 rgba(0,0,0,.22);
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--gold);
  text-shadow:
    3px 3px 0 rgba(0,0,0,.55),
    6px 6px 0 rgba(0,0,0,.22);
}

.hero-sub {
  font-size: 15px;
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0,0,0,.4);
  margin-bottom: 26px;
}

/* 搜索框 */
.search-box {
  display: flex;
  max-width: 560px;
  margin: 0 auto 20px;
  background: #fff;
  border: 4px solid var(--border);
  box-shadow: var(--pixel-shadow);
  overflow: hidden;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  padding: 14px 16px;
  font-size: 15px;
  font-family: var(--font-body);
  color: var(--ink);
  background: transparent;
}

.search-box input::placeholder { color: #9a9483; }

.search-box button {
  border: none;
  border-left: 4px solid var(--border);
  background: var(--grass);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  padding: 0 26px;
  cursor: pointer;
  transition: background .15s;
}

.search-box button:hover { background: var(--grass-dark); }

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-badges span {
  background: rgba(255,255,255,.85);
  border: 3px solid var(--border);
  box-shadow: var(--pixel-shadow-sm);
  padding: 5px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--grass-dark);
}

/* 漂浮像素方块 */
.float-cubes { position: absolute; inset: 0; z-index: 1; pointer-events: none; }

.cube {
  position: absolute;
  width: 22px;
  height: 22px;
  background:
    linear-gradient(#7cb75a 0 0) top / 100% 8px no-repeat,
    linear-gradient(#5a9a3f 0 0) center / 100% 8px no-repeat,
    var(--dirt);
  border: 2px solid var(--border);
  opacity: .9;
  animation: floaty 5s ease-in-out infinite;
}

.c1 { left: 8%;  top: 30%; animation-delay: 0s; }
.c2 { left: 16%; top: 58%; width: 14px; height: 14px; animation-delay: 1.2s; }
.c3 { right: 12%; top: 36%; animation-delay: .6s; }
.c4 { right: 20%; top: 60%; width: 16px; height: 16px; animation-delay: 2s; }
.c5 { left: 45%; top: 20%; width: 12px; height: 12px; animation-delay: 1.6s; }

@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-16px) rotate(6deg); }
}

/* hero 底部草皮锯齿 */
.hero-ground {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 18px;
  background: var(--grass);
  border-top: 4px solid var(--border);
  z-index: 1;
}

/* ===== 资源区 ===== */
.resources {
  max-width: 1180px;
  margin: 0 auto;
  padding: 44px 20px 60px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-family: var(--font-pixel);
  font-size: 20px;
  color: var(--grass-dark);
  text-shadow: 2px 2px 0 rgba(0,0,0,.12);
}

.section-head p { color: var(--ink-soft); font-size: 14px; }

/* 分类筛选栏 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  background: var(--panel);
  border: 3px solid var(--border);
  box-shadow: var(--pixel-shadow-sm);
  padding: 8px 16px;
  cursor: pointer;
  transition: transform .1s, box-shadow .1s, background .15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.filter-btn .count {
  font-size: 12px;
  background: var(--stone);
  color: #fff;
  padding: 1px 7px;
  border-radius: 999px;
}

.filter-btn:hover { transform: translate(-1px, -1px); }

.filter-btn.active {
  background: var(--grass);
  color: #fff;
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 rgba(0,0,0,.35);
}

.filter-btn.active .count { background: rgba(0,0,0,.28); }

/* 布局 */
.layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
}

/* 资源卡片 */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  background: var(--paper);
  border: 4px solid var(--border);
  box-shadow: var(--pixel-shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .12s, box-shadow .12s;
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(0,0,0,.38);
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.card-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
}

.card-cat {
  flex: none;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--dirt);
  border: 2px solid var(--border);
  padding: 2px 8px;
  box-shadow: 2px 2px 0 rgba(0,0,0,.25);
}

.card-cat.mods      { background: #3f8f4a; }
.card-cat.texture   { background: #b06a3a; }
.card-cat.shader    { background: #5b5fc7; }
.card-cat.pack      { background: #a0408e; }
.card-cat.launcher  { background: #3a7ca8; }
.card-cat.java      { background: #c0392b; }

.card-desc {
  font-size: 13.5px;
  color: var(--ink-soft);
  min-height: 42px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 12.5px;
  color: var(--ink-soft);
  border-top: 2px dashed #cfc8b2;
  padding-top: 8px;
}

.card-meta b { color: var(--ink); font-weight: 700; }

.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.card-tags span {
  font-size: 12px;
  background: #e3ddc4;
  border: 1px solid #b5ad8e;
  border-radius: 3px;
  padding: 1px 7px;
  color: #6d6752;
}

.card-bottom {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.dl-count { font-size: 12.5px; color: var(--ink-soft); }
.dl-count b { color: var(--gold); text-shadow: 1px 1px 0 rgba(0,0,0,.2); font-size: 14px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  background: var(--grass);
  border: 3px solid var(--border);
  box-shadow: 3px 3px 0 rgba(0,0,0,.35);
  padding: 9px 18px;
  cursor: pointer;
  transition: transform .1s, box-shadow .1s, background .15s;
  text-align: center;
}

.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 rgba(0,0,0,.35); background: var(--grass-dark); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 rgba(0,0,0,.35); }

.btn-ghost {
  background: var(--stone);
  color: #fff;
}
.btn-ghost:hover { background: #8f8a79; }

/* ===== 侧栏 ===== */
.sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 84px; }

.panel {
  background: var(--paper);
  border: 4px solid var(--border);
  box-shadow: var(--pixel-shadow-sm);
  padding: 16px;
}

.panel-title {
  font-family: var(--font-pixel);
  font-size: 13px;
  color: var(--grass-dark);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--border);
}

.hot-list { list-style: none; counter-reset: hot; display: flex; flex-direction: column; gap: 10px; }

.hot-list li {
  counter-increment: hot;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  cursor: pointer;
  padding: 6px 8px;
  border: 2px solid transparent;
  transition: background .15s, border-color .15s;
}

.hot-list li:hover { background: var(--panel); border-color: #cfc8b2; }

.hot-list li::before {
  content: counter(hot);
  flex: none;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 13px;
  color: #fff;
  background: var(--stone);
  border: 2px solid var(--border);
  box-shadow: 2px 2px 0 rgba(0,0,0,.25);
}

.hot-list li:nth-child(1)::before { background: var(--gold); }
.hot-list li:nth-child(2)::before { background: #c9c9c9; }
.hot-list li:nth-child(3)::before { background: #c98a4b; }

.hot-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.hot-num  { flex: none; font-size: 12px; color: var(--ink-soft); }
.hot-num b { color: var(--gold); text-shadow: 1px 1px 0 rgba(0,0,0,.15); }

.tip-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

.tip-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  color: var(--ink-soft);
}

.tip-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--grass-dark);
  font-size: 10px;
  top: 3px;
}

.tip-list a {
  color: var(--grass-dark);
  font-weight: 700;
  text-decoration: underline;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  background: var(--paper);
  border: 4px dashed var(--stone);
  margin-top: 24px;
}

.empty-icon { font-size: 44px; display: block; margin-bottom: 10px; }
.empty-state p { font-size: 16px; font-weight: 700; }
.empty-sub { color: var(--ink-soft); font-size: 14px; font-weight: 400 !important; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dirt-dark);
  border-top: 4px solid var(--border);
  color: #e8dcc6;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 20px 28px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
}

.footer-brand strong { font-family: var(--font-pixel); font-size: 14px; color: #fff; }
.footer-brand p { margin-top: 10px; font-size: 13px; color: #c9b894; }
.footer-brand .logo-cube { margin-bottom: 10px; }

.footer-col h4 {
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 7px; }

.footer-col a {
  font-size: 13.5px;
  color: #e8dcc6;
  transition: color .15s;
}

.footer-col a:hover { color: var(--gold); }

.footer-legal {
  grid-column: 1 / -1;
  font-size: 12.5px;
  color: #b5a07e;
  border-top: 2px dashed rgba(255,255,255,.15);
  padding-top: 16px;
  line-height: 1.8;
}

/* ===== 弹窗 ===== */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(20, 18, 14, .62);
  display: grid;
  place-items: center;
  padding: 20px;
}

/* hidden 属性的 display:none 必须显式声明，
   否则会被上面的 display:grid 覆盖，导致遮罩层隐形挡住整个页面 */
.modal-mask[hidden] {
  display: none !important;
}

.modal {
  width: min(440px, 100%);
  background: var(--paper);
  border: 4px solid var(--border);
  box-shadow: 8px 8px 0 rgba(0,0,0,.4);
  padding: 24px;
}

.modal-title {
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--grass-dark);
  margin-bottom: 14px;
}

.modal-desc { font-size: 14px; color: var(--ink-soft); margin-bottom: 12px; }

.modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.modal-meta span {
  font-size: 12px;
  background: var(--panel);
  border: 2px solid var(--border);
  padding: 3px 9px;
}

.modal-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  z-index: 300;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  border: 3px solid var(--gold);
  box-shadow: var(--pixel-shadow);
  padding: 12px 22px;
  max-width: 90vw;
  text-align: center;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--grass-dark);
    flex-direction: column;
    padding: 10px;
    border-bottom: 4px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-inner { padding: 52px 16px 84px; }
  .resource-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
}