:root {
  --bg: #f0f2f5; --surface: #ffffff; --card: #ffffff;
  --accent: #e8ecf1; --border: rgba(0,0,0,0.07);
  --text: #2d3436; --muted: #636e72; --dim: #a0a4a8;
  --red: #d63031; --green: #00b894; --yellow: #e17055;
  --blue: #0984e3; --purple: #6c5ce7; --orange: #e17055;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.1);
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); min-height: 100vh;
  line-height: 1.65; -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }

/* === Login === */
.login-screen {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.login-box {
  background: #fff; border-radius: 16px; padding: 40px 32px;
  width: 100%; max-width: 360px; box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  text-align: center;
}
.login-icon { font-size: 48px; margin-bottom: 8px; }
.login-box h1 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.login-subtitle { font-size: 13px; color: var(--dim); margin-bottom: 24px; }
.login-box form { display: flex; flex-direction: column; gap: 12px; }
.login-box input {
  padding: 12px 16px; border-radius: 10px; border: 1px solid var(--border);
  font-size: 15px; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.login-box input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(9,132,227,0.12); }
.btn-login {
  padding: 12px; border: none; border-radius: 10px;
  background: var(--blue); color: #fff; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: background 0.2s, transform 0.1s;
}
.btn-login:hover { background: #0773c5; }
.btn-login:active { transform: scale(0.98); }
.login-error { color: var(--red); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* === Header === */
.header {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(180deg, var(--bg) 60%, transparent);
  padding: 16px 0 10px;
}
.header-inner { max-width: 820px; margin: 0 auto; padding: 0 16px; }
.header-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.header h1 { font-size: 20px; font-weight: 700; letter-spacing: 1px; white-space: nowrap; }
.header h1 .emoji { margin-right: 6px; }
.user-area { display: flex; align-items: center; gap: 10px; }
.user-name { font-size: 13px; color: var(--muted); }
.btn-logout {
  padding: 4px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); font-size: 12px;
  cursor: pointer; transition: all 0.15s;
}
.btn-logout:hover { background: var(--accent); color: var(--text); }
.search-wrap { position: relative; width: 100%; }
.search-wrap input {
  width: 100%; padding: 10px 14px 10px 38px; border-radius: 10px;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  font-size: 14px; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}
.search-wrap input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(9,132,227,0.12); }
.search-wrap .search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-size: 14px; color: var(--dim); pointer-events: none;
}

/* === Container === */
.container { max-width: 820px; margin: 0 auto; padding: 0 16px 40px; }

/* === Dashboard === */
.dash { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-bottom: 14px; }
.dash-item {
  background: var(--card); border-radius: 10px; padding: 12px 10px;
  text-align: center; border: 1px solid var(--border); box-shadow: var(--shadow);
  transition: transform 0.15s;
}
.dash-item:hover { transform: translateY(-1px); }
.dash-item .num { font-size: 24px; font-weight: 700; }
.dash-item .label { font-size: 11px; color: var(--dim); margin-top: 2px; }
.dash-item.red .num { color: var(--red); }
.dash-item.green .num { color: var(--green); }
.dash-item.yellow .num { color: var(--yellow); }
.dash-item.blue .num { color: var(--blue); }

/* === Filters === */
.filter-section { margin-bottom: 10px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; align-items: center; }
.filter-label { font-size: 11px; color: var(--dim); margin-right: 4px; white-space: nowrap; font-weight: 600; }
.filter-tag {
  display: inline-block; padding: 4px 12px; border-radius: 14px;
  font-size: 12px; cursor: pointer; user-select: none;
  background: var(--surface); color: var(--muted); border: 1px solid var(--border);
  transition: all 0.15s; white-space: nowrap;
}
.filter-tag:hover { background: var(--accent); color: var(--text); }
.filter-tag.active { background: var(--blue); color: #fff; border-color: var(--blue); font-weight: 600; }
.filter-tag.quick { font-size: 11px; }
.filter-tag.quick.active { background: var(--accent); border-color: var(--border); color: var(--text); font-weight: 600; }
.filter-tag.quick.fire.active { background: rgba(214,48,49,0.08); border-color: var(--red); color: var(--red); }
.filter-tag.quick.star.active { background: rgba(225,112,85,0.08); border-color: var(--yellow); color: var(--yellow); }
.filter-tag.quick.loc.active { background: rgba(9,132,227,0.08); border-color: var(--blue); color: var(--blue); }
.filter-tag.quick.nego.active { background: rgba(225,112,85,0.08); border-color: var(--orange); color: var(--orange); }
.filter-tag.quick.won.active { background: rgba(0,184,148,0.08); border-color: var(--green); color: var(--green); }
.filter-tag.quick.lost.active { background: rgba(160,164,168,0.08); border-color: var(--dim); color: var(--dim); }

.results-info { font-size: 11px; color: var(--dim); margin-bottom: 10px; padding: 0 4px; }

/* === School Cards === */
.school-card {
  background: var(--card); border-radius: 12px; margin-bottom: 10px;
  border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow);
  transition: transform 0.15s, box-shadow 0.15s;
}
.school-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-1px); }
.card-header {
  display: flex; align-items: center; padding: 14px 16px; cursor: pointer;
  user-select: none; gap: 10px; transition: background 0.15s;
}
.card-header:hover { background: #f8f9fb; }
.card-header:active { background: #eef0f4; }
.card-header .expand-arrow { font-size: 10px; color: var(--dim); transition: transform 0.2s; flex-shrink: 0; }
.school-card.expanded .expand-arrow { transform: rotate(90deg); }
.card-header .pri { font-size: 10px; flex-shrink: 0; }
.card-header .name { flex: 1; font-size: 15px; font-weight: 600; min-width: 0; }
.card-header .location { font-size: 11px; color: var(--dim); flex-shrink: 0; }
.card-header .status-badge { font-size: 10px; padding: 2px 8px; border-radius: 10px; flex-shrink: 0; font-weight: 600; }
.status-pending { background: rgba(225,112,85,0.1); color: var(--yellow); }
.status-negotiating { background: rgba(225,112,85,0.1); color: var(--orange); }
.status-won { background: rgba(0,184,148,0.1); color: var(--green); }
.status-lost { background: rgba(160,164,168,0.1); color: var(--dim); }

.card-tags { padding: 0 16px 10px 34px; display: flex; flex-wrap: wrap; gap: 4px; }
.card-tag {
  font-size: 10px; padding: 1px 7px; border-radius: 8px;
  background: var(--accent); color: var(--muted); white-space: nowrap;
}
.card-tag.bidding { background: rgba(214,48,49,0.08); color: var(--red); }
.card-tag.dual-high { background: rgba(108,92,231,0.08); color: var(--purple); }

.card-body { padding: 0 16px 16px 34px; display: none; border-top: 1px solid var(--border); padding-top: 12px; }
.school-card.expanded .card-body { display: block; }
.card-body h4 { font-size: 12px; color: var(--blue); margin: 12px 0 6px; text-transform: uppercase; letter-spacing: 1px; }
.card-body h4:first-child { margin-top: 0; }
.info-grid { display: grid; grid-template-columns: 80px 1fr; gap: 4px 8px; font-size: 13px; }
.info-grid .k { color: var(--dim); font-size: 12px; }
.info-grid .v { word-break: break-all; }
.updated-by { font-size: 10px; color: var(--dim); margin-top: 4px; }

.report-links { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.report-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 6px 12px; border-radius: 8px; background: var(--accent);
  color: var(--text); text-decoration: none; font-size: 12px;
  border: 1px solid var(--border); transition: all 0.15s;
}
.report-link:hover { background: #dce3ec; border-color: var(--blue); color: var(--blue); }
.no-reports { font-size: 12px; color: var(--dim); font-style: italic; }

.next-action-box {
  margin-top: 8px; padding: 10px 12px; border-radius: 8px;
  background: rgba(225,112,85,0.06); border: 1px solid rgba(225,112,85,0.2);
  font-size: 12px; color: #c0392b;
}
.next-action-box strong { display: block; font-size: 10px; color: var(--dim); margin-bottom: 2px; }

.log-list { margin: 0; padding: 0; list-style: none; }
.log-list li {
  font-size: 12px; padding: 4px 0; border-bottom: 1px solid var(--border);
  display: flex; gap: 8px; flex-wrap: wrap;
}
.log-list li:last-child { border-bottom: none; }
.log-list .log-date { color: var(--dim); font-size: 11px; flex-shrink: 0; }
.log-list .log-by { color: var(--blue); font-size: 10px; }

/* === Card Actions === */
.card-actions {
  display: flex; gap: 8px; margin-top: 12px; padding-top: 10px;
  border-top: 1px solid var(--border);
}
.btn-edit, .btn-add-log, .btn-add-report {
  padding: 6px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); font-size: 12px;
  cursor: pointer; transition: all 0.15s; display: inline-flex; align-items: center; gap: 4px;
}
.btn-edit:hover { background: rgba(9,132,227,0.08); border-color: var(--blue); color: var(--blue); }
.btn-add-log:hover { background: rgba(0,184,148,0.08); border-color: var(--green); color: var(--green); }
.btn-add-report:hover { background: rgba(108,92,231,0.08); border-color: var(--purple); color: var(--purple); }

/* === Shared === */
.shared-section { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border); }
.shared-section h3 { font-size: 13px; color: var(--dim); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px; }
.shared-links { display: flex; flex-wrap: wrap; gap: 8px; }
.shared-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 10px; background: var(--surface);
  color: var(--text); text-decoration: none; font-size: 13px;
  border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.15s;
}
.shared-link:hover { background: var(--accent); border-color: var(--blue); }
.footer { margin-top: 24px; text-align: center; font-size: 11px; color: var(--dim); }
.no-results { text-align: center; padding: 40px 20px; color: var(--dim); }
.no-results .icon { font-size: 36px; margin-bottom: 8px; }

/* === Modal === */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4); z-index: 1000; display: flex;
  align-items: flex-start; justify-content: center; padding: 5vh 20px;
  overflow-y: auto;
}
.modal {
  background: #fff; border-radius: 14px; width: 100%; max-width: 600px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2); margin-bottom: 5vh;
}
.modal-sm { max-width: 420px; }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 16px; font-weight: 600; }
.modal-close {
  background: none; border: none; font-size: 24px; color: var(--dim);
  cursor: pointer; line-height: 1; padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; max-height: 60vh; overflow-y: auto; }
.modal-footer {
  display: flex; gap: 10px; justify-content: flex-end;
  padding: 14px 20px; border-top: 1px solid var(--border);
}
.btn-cancel {
  padding: 8px 20px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); font-size: 14px; cursor: pointer;
}
.btn-cancel:hover { background: var(--accent); }
.btn-save {
  padding: 8px 20px; border-radius: 8px; border: none;
  background: var(--blue); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn-save:hover { background: #0773c5; }
.btn-save:disabled { opacity: 0.5; cursor: not-allowed; }

/* === Form === */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; font-weight: 600;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); font-size: 14px; outline: none;
  transition: border-color 0.2s; font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--blue);
}
.form-group textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

/* === Toast === */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
  background: rgba(45,52,54,0.95); color: #fff; padding: 12px 24px;
  border-radius: 10px; font-size: 14px; z-index: 2000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2); transition: opacity 0.3s;
}
.toast.error { background: rgba(214,48,49,0.95); }
.toast.success { background: rgba(0,184,148,0.95); }

/* === Admin Button === */
.btn-admin {
  padding: 4px 12px; border-radius: 8px; border: 1px solid var(--purple);
  background: rgba(108,92,231,0.06); color: var(--purple); font-size: 12px;
  cursor: pointer; transition: all 0.15s; font-weight: 600;
}
.btn-admin:hover { background: rgba(108,92,231,0.12); }

/* === User Modal === */
.modal-lg { max-width: 640px; }
.user-section { margin-bottom: 20px; }
.user-section h3 { font-size: 14px; color: var(--muted); margin-bottom: 12px; font-weight: 600; border-left: 3px solid var(--blue); padding-left: 8px; }
.user-section-divider { border-top: 1px solid var(--border); margin: 16px 0; }

.user-list-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.user-list-table th {
  text-align: left; padding: 8px 10px; font-size: 11px; color: var(--dim);
  border-bottom: 2px solid var(--border); text-transform: uppercase; letter-spacing: 1px;
}
.user-list-table td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.user-list-table tr:hover td { background: #f8f9fb; }
.user-list-table .user-role {
  display: inline-block; padding: 2px 8px; border-radius: 8px; font-size: 10px; font-weight: 600;
}
.user-list-table .role-admin { background: rgba(108,92,231,0.1); color: var(--purple); }
.user-list-table .role-editor { background: rgba(9,132,227,0.08); color: var(--blue); }
.user-list-table .user-me { color: var(--muted); font-size: 10px; margin-left: 4px; }

.btn-delete-user {
  padding: 3px 10px; border-radius: 6px; border: 1px solid rgba(214,48,49,0.2);
  background: transparent; color: var(--red); font-size: 11px;
  cursor: pointer; transition: all 0.15s;
}
.btn-delete-user:hover { background: rgba(214,48,49,0.08); }

.btn-create-user { width: 100%; margin-top: 8px; }
.btn-change-password { width: 100%; margin-top: 8px; }

/* === Mobile === */
@media (max-width: 600px) {
  .dash { grid-template-columns: repeat(2,1fr); }
  .header h1 { font-size: 17px; }
  .card-header { padding: 12px 12px; }
  .card-header .name { font-size: 14px; }
  .card-body { padding-left: 28px; padding-right: 12px; }
  .card-tags { padding-left: 28px; }
  .card-header .pri { display: none; }
  .info-grid { grid-template-columns: 65px 1fr; font-size: 12px; }
  .form-row { grid-template-columns: 1fr; }
  .form-row-3 { grid-template-columns: 1fr; }
  .modal { border-radius: 10px; }
}