:root {
  --bg1:#142226; --bg2:#0A1214; --bg3:#070D0F;
  --card1:#14202580; --card2:#0F181C80; --border: rgba(255,255,255,0.07);
  --text-main:#EAF2F1; --text-dim:#8FA0AE; --text-faint:#5A6670; --text-faintest:#3A4750;
  --accent:#5EE6C8; --danger:#F26D6D; --warn:#F2B84B;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; font-family: 'Inter', sans-serif;
  background: radial-gradient(ellipse at 20% 0%, var(--bg1) 0%, var(--bg2) 55%, var(--bg3) 100%);
  padding: 28px 16px 60px;
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url('assets/logo.png');
  background-repeat: no-repeat;
  background-position: center 38%;
  background-size: min(520px, 85vw);
  opacity: 0.05;
  filter: grayscale(1);
  pointer-events: none;
  z-index: 0;
}
.wrap { position: relative; z-index: 1; }
input::placeholder { color: #4C5A63; }
input:focus, select:focus { border-color: var(--accent) !important; }
.wrap { max-width: 480px; margin: 0 auto; }
.hidden { display: none !important; }

/* header */
.header { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }
.logo { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg,#5EE6C8,#2E9C86);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; overflow: hidden; padding: 3px; }
.h-title { color: var(--text-main); font-size: 15px; font-weight: 700; }
.h-sub { color: var(--text-faint); font-size: 11.5px; }
.btn-logout { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px;
  padding: 7px 10px; display: flex; align-items: center; gap: 6px; color: var(--text-dim); font-size: 12px; cursor: pointer; }

/* tabs */
.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab-btn { flex: 1; padding: 9px 0; border-radius: 9px; border: 1px solid rgba(255,255,255,0.08);
  background: transparent; color: var(--text-dim); font-size: 12.5px; font-weight: 600; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 6px; }
.tab-btn.active { background: rgba(94,230,200,0.12); color: var(--accent); }

/* login */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 70vh; }
.login-box { width: 100%; max-width: 340px; }
.login-logo-wrap { display: flex; flex-direction: column; align-items: center; margin-bottom: 22px; }
.login-logo-img { width: 96px; height: 96px; object-fit: contain; margin-bottom: 10px;
  filter: drop-shadow(0 4px 16px rgba(94,230,200,0.15)); }
.login-title { color: var(--text-main); font-size: 18px; font-weight: 700; margin: 0; }
.login-sub { color: var(--text-faint); font-size: 12.5px; margin: 4px 0 0; }
.pw-wrap { position: relative; }
.pw-toggle { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); background: none; border: none;
  color: var(--text-faint); cursor: pointer; padding: 4px; }

.contact-admin { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; gap: 8px; align-items: center; }
.contact-admin-title { color: var(--text-faint); font-size: 11.5px; margin: 0 0 4px; }
.contact-row { display: flex; align-items: center; gap: 8px; text-decoration: none; width: 100%;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07); border-radius: 9px;
  padding: 9px 12px; transition: border-color 0.15s, background 0.15s; }
.contact-row:hover { border-color: rgba(94,230,200,0.4); background: rgba(94,230,200,0.06); }
.contact-icon { width: 24px; height: 24px; border-radius: 7px; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; }
.contact-icon.wa { background: #25D366; color: #06110F; }
.contact-icon.tt { background: #101418; color: #EAF2F1; border: 1px solid rgba(255,255,255,0.15); }
.contact-text { color: var(--text-main); font-size: 13px; font-weight: 600; }

/* empty state */
.empty { border: 1px dashed rgba(255,255,255,0.12); border-radius: 14px; padding: 36px 20px;
  text-align: center; color: var(--text-faint); font-size: 13px; }

/* code / user cards */
.card-list { display: flex; flex-direction: column; gap: 10px; }
.code-card, .user-card { background: linear-gradient(180deg, var(--card1), var(--card2)); border: 1px solid var(--border);
  border-radius: 14px; padding: 14px 16px; display: flex; align-items: center; gap: 12px; position: relative; overflow: hidden; }
.user-card { border-radius: 12px; padding: 12px 14px; gap: 10px; }
.stripe { position: absolute; left: 0; top: 0; bottom: 0; width: 3px; opacity: 0.85; }
.avatar { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 12px; flex-shrink: 0; }
.avatar.small { width: 32px; height: 32px; border-radius: 8px; font-size: 11px; }
.info { flex: 1; min-width: 0; }
.label { font-size: 11.5px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.assigned-tag { color: var(--text-faintest); }
.code-btn { background: none; border: none; padding: 0; margin-top: 2px; cursor: pointer;
  font-family: 'JetBrains Mono', monospace; font-size: 22px; letter-spacing: 2px; font-weight: 600; }
.icon-btn { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px;
  width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; cursor: pointer;
  color: var(--text-dim); flex-shrink: 0; }
.manage-btns { display: flex; gap: 4px; flex-shrink: 0; }
.icon-btn-plain { background: none; border: none; cursor: pointer; color: var(--text-faint); padding: 4px; display: flex; }
.user-name { color: var(--text-main); font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; }
.user-role.admin { color: var(--warn); }
.user-role.user { color: var(--text-faint); }

.add-btn { margin-top: 14px; width: 100%; background: rgba(94,230,200,0.08); border: 1px dashed rgba(94,230,200,0.4);
  border-radius: 12px; padding: 12px 0; color: var(--accent); font-weight: 600; font-size: 13px;
  display: flex; align-items: center; justify-content: center; gap: 6px; cursor: pointer; }

/* account info panel */
.code-item { display: flex; flex-direction: column; gap: 0; }
.info-toggle-btn { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px;
  width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; cursor: pointer;
  color: var(--text-dim); flex-shrink: 0; }
.info-toggle-btn.open { color: var(--accent); border-color: rgba(94,230,200,0.4); background: rgba(94,230,200,0.08); }
.info-panel { background: #0B1316; border: 1px solid rgba(255,255,255,0.06); border-top: none;
  border-radius: 0 0 12px 12px; margin: -6px 0 0; padding: 12px 16px 14px; display: flex; flex-direction: column; gap: 8px; }
.info-row { display: flex; align-items: center; gap: 8px; }
.info-key { color: var(--text-faint); font-size: 11px; width: 78px; flex-shrink: 0; }
.info-val { color: var(--text-main); font-size: 13px; font-family: 'JetBrains Mono', monospace;
  flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.info-val.empty-val { color: var(--text-faintest); font-family: 'Inter', sans-serif; }
.info-action-btn { background: none; border: none; color: var(--text-faint); cursor: pointer; padding: 3px; flex-shrink: 0; display: flex; }
.info-edit-hint { color: var(--text-faintest); font-size: 10.5px; margin-top: 2px; }

.footer-note { color: var(--text-faintest); font-size: 10.5px; text-align: center; margin-top: 28px; line-height: 1.6; }

/* modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(6,10,12,0.7); backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-overlay.show { display: flex; }
.modal { background: #101A1E; border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; padding: 24px;
  width: 100%; max-width: 380px; max-height: 85vh; overflow-y: auto; }
.modal-title { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.modal-title h2 { color: var(--text-main); font-size: 16px; font-weight: 600; margin: 0; }
.modal-close { margin-left: auto; background: none; border: none; color: var(--text-faint); cursor: pointer; }
.field-label { display: block; font-size: 11px; color: var(--text-dim); margin: 12px 0 5px; }
.field-input { width: 100%; background: #0B1316; border: 1px solid rgba(255,255,255,0.1); border-radius: 8px;
  padding: 9px 11px; color: var(--text-main); font-size: 13px; outline: none; }
.mono-input { font-family: 'JetBrains Mono', monospace; }
.error-text { color: var(--danger); font-size: 12px; margin-top: 8px; min-height: 14px; }
.modal-actions { display: flex; gap: 8px; margin-top: 20px; }
.btn-primary { flex: 1; background: var(--accent); border: none; border-radius: 9px; padding: 10px 0;
  color: #06110F; font-weight: 700; font-size: 13px; cursor: pointer; }
.btn-secondary { flex: 1; background: transparent; border: 1px solid rgba(255,255,255,0.12); border-radius: 9px;
  padding: 10px 0; color: var(--text-dim); font-weight: 600; font-size: 13px; cursor: pointer; }

.loading-wrap { display: flex; align-items: center; justify-content: center; min-height: 60vh; color: var(--text-faint); gap: 8px; }
.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }