/* ========== Base ========== */
:root {
  --bg-url: radial-gradient(circle at 20% 20%, #2f80ed, transparent 55%),
    radial-gradient(circle at 80% 30%, #9b51e0, transparent 50%),
    radial-gradient(circle at 50% 80%, #27ae60, transparent 45%),
    linear-gradient(120deg, #0b1020, #0a0f1a);

  --bg-dim: 0.05;

  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --faint: rgba(255, 255, 255, 0.55);

  --card: rgba(14, 18, 32, 0.65);
  --card-border: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);

  --radius: 18px;
  --radius-sm: 12px;

  --gap: 18px;
  --max: 1100px;

  --primary: rgba(99, 102, 241, 1);
  --danger: rgba(239, 68, 68, 1);

  --focus: rgba(255, 255, 255, 0.2);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, var(--overlay-opacity, 0.4));
  pointer-events: none;
  transition: background 0.3s ease;
}

body {
  margin: 0;
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Apple SD Gothic Neo,
    Noto Sans KR, "Helvetica Neue", Arial, sans-serif;

  background-image: var(--bg-url);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.bg-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(
      circle at 30% 20%,
      rgba(255, 255, 255, 0.08),
      transparent 55%
    ),
    linear-gradient(
      180deg,
      rgba(0, 0, 0, calc(var(--bg-dim) + 0.05)),
      rgba(0, 0, 0, var(--bg-dim))
    );
  pointer-events: none;
  z-index: 0;
}

/* Layout container */
.topbar,
.grid,
.footer {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 28px));
  margin-inline: auto;
}

/* ========== Header ========== */
.topbar {
  padding: 22px 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 280px;
}

.brand__mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.22), transparent);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand__title {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.brand__sub {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* Clock */
.clock {
  min-width: 260px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.clock__label {
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.2px;
}

.clock__time {
  font-size: 30px;
  font-weight: 700;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

.clock__date {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12.5px;
}

/* ========== Main Grid ========== */
.grid {
  display: grid;
  gap: var(--gap);
  padding: 10px 0 18px;

  grid-template-columns: repeat(12, 1fr);
}

.card {
  grid-column: span 6;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  padding: 16px;
}

.card__head {
  margin-bottom: 14px;
}

.card__title {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.card__desc {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 960px) {
  .card {
    grid-column: span 12;
  }
}

/* ========== Forms & Buttons ========== */
.field {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.field__label {
  font-size: 12.5px;
  color: var(--muted);
}

.field__input,
.todo__input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  outline: none;
}

.field__input:focus,
.todo__input:focus {
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08);
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
}

.btn--primary {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.95), rgba(99, 102, 241, 0.65));
  border-color: rgba(99, 102, 241, 0.55);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
}

.btn--danger {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.95), rgba(239, 68, 68, 0.65));
  border-color: rgba(239, 68, 68, 0.55);
}

.hint {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

.hint code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 12px;
  padding: 1px 6px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.25);
}

/* ========== Auth states (JS로 토글) ========== */
/* 기본: logged-out */
#welcomeBox {
  display: none;
}

html[data-state="logged-in"] #loginForm {
  display: none;
}
html[data-state="logged-in"] #welcomeBox {
  display: flex;
}

.welcome {
  margin-top: 10px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.welcome__badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.25);
  color: var(--muted);
  width: fit-content;
}

.welcome__msg {
  margin: 6px 0 0;
  font-size: 14px;
}

/* ========== Todo ========== */
.todo__form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 10px;
}

.todo__list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
}

.todo__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.18);
}

.todo__text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.todo__item.is-done .todo__text {
  text-decoration: line-through;
  color: var(--faint);
}

.todo__check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.todo__check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.todo__fakebox {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  display: inline-block;
}

.todo__item.is-done .todo__fakebox {
  background: rgba(99, 102, 241, 0.6);
  border-color: rgba(99, 102, 241, 0.65);
}

.todo__fakebox::after {
  content: "✓";
  display: block;
  font-size: 14px;
  color: white;
  text-align: center;
  line-height: 18px;
  opacity: 0;
}

.todo__item.is-done .todo__fakebox::after {
  opacity: 1;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.todo__footer {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.todo__meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.18);
}

.pill--muted {
  color: var(--muted);
}

/* ========== Weather ========== */
.weather__top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.18);
}

.weather__icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.weather__icon img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.weather__city {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.weather__desc {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 3px;
}

.weather__temp {
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 800;
}

.weather__unit {
  font-size: 14px;
  color: var(--muted);
  margin-left: 4px;
}

.weather__grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (max-width: 520px) {
  .weather__grid {
    grid-template-columns: 1fr;
  }
}

.kv {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
}

.kv__k {
  color: var(--muted);
  font-size: 12.5px;
}

.kv__v {
  margin-top: 6px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ========== Background panel ========== */
.bgpanel {
  margin-top: 10px;
}

.bgpanel__preview {
  height: 140px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.18);
  position: relative;
  overflow: hidden;
}

.bgpanel__preview::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--bg-url);
  background-size: cover;
  background-position: center;
  filter: saturate(1.1) contrast(1.05);
  transform: scale(1.08);
}

.bgpanel__chip {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.9);
}

/* ========== Footer ========== */
.footer {
  padding: 10px 0 18px;
  color: var(--muted);
  text-align: center;
}