/* AP Business — 项目小组页面共享样式（绿色主题） */
:root {
  --primary: #4caf50;
  --primary-dark: #43a047;
  --primary-soft: rgba(76, 175, 80, 0.15);
  --primary-border: rgba(76, 175, 80, 0.35);
  --bg-dark: #0d1f0d;
  --bg-card: rgba(24, 42, 24, 0.85);
  --bg-input: rgba(13, 31, 13, 0.7);
  --text: #f0f0f0;
  --text-dim: rgba(240, 240, 240, 0.7);
  --danger: #ef5350;
  --warning: #ffb347;
  --radius: 10px;
}

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

body {
  font-family: Georgia, 'Times New Roman', Times, serif;
  background-color: var(--bg-dark);
  background-image:
    radial-gradient(circle at 8% 12%, rgba(76, 175, 80, 0.08) 0%, transparent 28%),
    radial-gradient(circle at 92% 85%, rgba(76, 175, 80, 0.08) 0%, transparent 28%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%234caf50' stroke-width='0.5' stroke-opacity='0.08'%3E%3Cpath d='M0 30h60M30 0v60'/%3E%3Ccircle cx='30' cy='30' r='15'/%3E%3C/g%3E%3C/svg%3E");
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.wrap {
  width: 92%;
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem) 0 4rem;
}

/* ── 顶部 ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.topbar h1 {
  color: var(--primary);
  font-size: clamp(1.4rem, 4vw, 2rem);
  text-shadow: 0 0 12px rgba(76, 175, 80, 0.45);
}
.subtitle { color: var(--text-dim); font-size: 0.95rem; margin-top: 0.2rem; }

.back-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.9rem;
  border: 1px solid var(--primary-border);
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  transition: background 0.2s;
  white-space: nowrap;
}
.back-link:hover { background: var(--primary-soft); }

/* ── 卡片 ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius);
  padding: clamp(1rem, 3vw, 1.6rem);
  margin-bottom: 1.2rem;
  backdrop-filter: blur(4px);
}
.card h2 {
  color: var(--primary);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}
.card h3 {
  color: var(--primary);
  font-size: 1rem;
  margin: 1.1rem 0 0.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1.2rem;
}

/* ── 表单 ── */
label {
  display: block;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin: 0.7rem 0 0.25rem;
}
label .req { color: var(--warning); }

input[type="text"], input[type="password"], input[type="number"],
input[type="date"], input[type="url"], textarea, select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--primary-border);
  border-radius: 6px;
  color: var(--text);
  padding: 0.6rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.25);
}
textarea { resize: vertical; min-height: 70px; }
input[type="number"] { width: 110px; }
input[type="date"] { width: 180px; }

.hint { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.25rem; }

/* ── 按钮 ── */
.btn {
  display: inline-block;
  background: var(--primary);
  color: var(--bg-dark);
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.3rem;
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-top: 1rem;
}
.btn:hover { background: var(--primary-dark); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary-border);
  font-weight: normal;
}
.btn-ghost:hover { background: var(--primary-soft); }

.btn-sm { padding: 0.3rem 0.8rem; font-size: 0.85rem; margin-top: 0; }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid rgba(239, 83, 80, 0.4); }
.btn-danger:hover { background: rgba(239, 83, 80, 0.12); }

.btn-row { display: flex; gap: 0.7rem; flex-wrap: wrap; align-items: center; }

.member-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}
.member-row input { flex: 1; }
.member-row .remove {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 0.3rem;
  line-height: 1;
}

/* ── 徽章 ── */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--primary-border);
  color: var(--primary);
  vertical-align: middle;
  margin-left: 0.4rem;
}
.badge-locked { color: var(--warning); border-color: rgba(255, 179, 71, 0.5); background: rgba(255, 179, 71, 0.1); }
.badge-overdue { color: var(--danger); border-color: rgba(239, 83, 80, 0.5); background: rgba(239, 83, 80, 0.1); }
.badge-soon { color: var(--warning); border-color: rgba(255, 179, 71, 0.5); background: rgba(255, 179, 71, 0.1); }

/* ── 小组信息 ── */
.member-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.4rem 0 0.8rem; }
.chip {
  background: var(--primary-soft);
  border: 1px solid var(--primary-border);
  border-radius: 999px;
  padding: 0.25rem 0.9rem;
  font-size: 0.9rem;
}
.info-line { margin: 0.4rem 0; font-size: 0.95rem; }
.info-line .label { color: var(--text-dim); display: inline-block; min-width: 5.5em; }
.info-line a { color: var(--primary); word-break: break-all; }
.empty-note { color: var(--text-dim); font-style: italic; font-size: 0.9rem; }

/* ── 项目任务卡 ── */
.assignment {
  border: 1px solid var(--primary-border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: 0.9rem 0;
  background: rgba(13, 31, 13, 0.45);
}
.assignment-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.assignment-title { color: var(--primary); font-weight: bold; font-size: 1.05rem; }
.due { font-size: 0.85rem; color: var(--text-dim); white-space: nowrap; }
.assignment-desc { margin: 0.5rem 0; font-size: 0.93rem; white-space: pre-wrap; }

/* ── 分数表 ── */
table { width: 100%; border-collapse: collapse; margin-top: 0.7rem; font-size: 0.92rem; }
th {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 2px solid var(--primary);
  color: var(--primary);
  font-weight: bold;
}
td { padding: 0.55rem 0.6rem; border-bottom: 1px solid rgba(76, 175, 80, 0.15); vertical-align: top; }
.score-value { font-size: 1.15rem; font-weight: bold; color: var(--primary); }
.score-comment { color: var(--text-dim); font-size: 0.88rem; }
tr.score-row-has { background: rgba(76, 175, 80, 0.06); }

/* 老师端打分行 */
.score-input-row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.score-input-row input[type="number"] { width: 90px; }
.score-input-row input[type="text"] { flex: 1; min-width: 160px; }

/* 任务分配多选框 */
.task-group-check { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin: 0.4rem 0; }
.task-group-check label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0.25rem 0.7rem;
  background: var(--primary-soft);
  border: 1px solid var(--primary-border);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text);
  cursor: pointer;
}
.task-group-check label:hover { background: rgba(76, 175, 80, 0.25); }
.task-group-check input[type="checkbox"] { accent-color: var(--primary); width: auto; }

/* ── 小组列表（老师端） ── */
.group-item {
  border: 1px solid var(--primary-border);
  border-radius: 8px;
  padding: 0.9rem 1.2rem;
  margin-bottom: 0.8rem;
  background: rgba(13, 31, 13, 0.45);
  cursor: pointer;
  transition: background 0.2s;
}
.group-item:hover { background: rgba(76, 175, 80, 0.1); }
.group-item-head { display: flex; justify-content: space-between; gap: 0.8rem; flex-wrap: wrap; align-items: center; }
.group-item-name { font-weight: bold; font-size: 1.05rem; color: var(--primary); }
.group-item-meta { font-size: 0.85rem; color: var(--text-dim); }
.group-detail { margin-top: 1rem; border-top: 1px solid rgba(76, 175, 80, 0.2); padding-top: 1rem; }

[hidden] { display: none !important; }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  width: min(92vw, 480px);
}
.toast-msg {
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  font-size: 0.92rem;
  background: rgba(24, 42, 24, 0.95);
  border: 1px solid var(--primary-border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
  animation: toast-in 0.25s ease-out;
}
.toast-msg.error { border-color: rgba(239, 83, 80, 0.6); color: #ffcdd2; }
.toast-msg.success { border-color: var(--primary-border); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .wrap { width: 94%; }
  .assignment-head { flex-direction: column; gap: 0.2rem; }
  th, td { padding: 0.4rem 0.35rem; font-size: 0.85rem; }
}