/* ── Reset & Base ────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

* { scrollbar-width: thin; scrollbar-color: var(--bg4) transparent; }

@keyframes fadeUp  { from { opacity: 0; transform: translateY(18px) } to { opacity: 1; transform: translateY(0) } }
@keyframes spin    { to { transform: rotate(360deg) } }

/* ── Shared Buttons ──────────────────────────────────── */
.btn-primary {
  background: var(--accent-btn); color: #fff; border: none;
  border-radius: var(--radius); padding: 13px 20px;
  font-family: var(--font); font-size: 14.5px; font-weight: 500;
  cursor: pointer; width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: background .2s, transform .1s, box-shadow .2s;
  box-shadow: 0 4px 18px rgba(37,99,235,.35);
}
.btn-primary:hover   { background: var(--accent); box-shadow: 0 6px 24px rgba(59,130,246,.45); }
.btn-primary:active  { transform: scale(.98); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }

.btn-sm {
  padding: 8px 14px; background: var(--accent-btn); color: #fff;
  border: none; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: background .2s; white-space: nowrap;
}
.btn-sm:hover              { background: var(--accent); }
.btn-sm.ghost              { background: var(--bg3); color: var(--text); }
.btn-sm.ghost:hover        { background: var(--bg4); }
.btn-sm.danger             { background: rgba(248,113,113,.1); color: var(--danger); border: 1px solid rgba(248,113,113,.2); }
.btn-sm.danger:hover       { background: var(--danger); color: #fff; }

.icon-btn {
  width: 34px; height: 34px; background: none; border: none;
  border-radius: var(--radius-sm); cursor: pointer; color: var(--text2);
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s; flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg3); color: var(--text); }

/* ── Form Fields ─────────────────────────────────────── */
.field-wrap { position: relative; }
.field-wrap input {
  width: 100%; padding: 12px 42px 12px 14px;
  background: var(--bg3); border: 1.5px solid var(--border2);
  border-radius: var(--radius); font-family: var(--font); font-size: 14.5px;
  color: var(--text); outline: none; transition: border-color .2s; letter-spacing: .3px;
}
.field-wrap input:focus       { border-color: var(--accent); }
.field-wrap input::placeholder { color: var(--text3); letter-spacing: 0; }

.vis-btn {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--text3);
  display: flex; align-items: center; padding: 4px; transition: color .15s;
}
.vis-btn:hover { color: var(--text2); }

.add-form { display: flex; gap: 8px; margin-top: 12px; }
.add-form input {
  flex: 1; padding: 9px 12px;
  background: var(--bg3); border: 1.5px solid var(--border2);
  border-radius: var(--radius-sm); font-family: var(--font); font-size: 13.5px;
  color: var(--text); outline: none; transition: border-color .2s;
}
.add-form input:focus       { border-color: var(--accent); }
.add-form input::placeholder { color: var(--text3); }

/* ── Toggle ──────────────────────────────────────────── */
.toggle {
  width: 40px; height: 23px; background: var(--bg4); border-radius: 12px;
  position: relative; cursor: pointer; transition: background .25s; border: none; flex-shrink: 0;
}
.toggle.on { background: var(--success); }
.toggle::after {
  content: ''; position: absolute; width: 17px; height: 17px; background: #fff;
  border-radius: 50%; top: 3px; left: 3px;
  transition: transform .25s var(--ease);
  box-shadow: 0 1px 4px rgba(0,0,0,.25);
}
.toggle.on::after { transform: translateX(17px); }

/* ── App Shell ───────────────────────────────────────── */
#app { display: flex; height: 100vh; opacity: 0; transition: opacity .4s; }
#app.visible { opacity: 1; }