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

:root {
  --bg: #FFFBF6;
  --surface: #FFFBF4;
  --surface2: #FFFBF4;
  --border: #EDD9C8;
  --border-bright: #D4B8A5;

  --accent: #FFB84A;
  --accent-light: #FFBF6C;
  --accent-dim: #FFF5E5;

  --blue: #F5A623;
  --blue-bg: #FFF0CC;
  --green: #7CBF5E;
  --green-bg: #E4F5D8;

  --text-primary: #3D2B1F;
  --text-secondary: #9C7B6B;
  --text-muted: #C9A99A;

  --font-display: 'Poor Story', sans-serif;
  --font-body: 'Noto Sans KR', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
}

html { font-size: 16px; }

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem 4rem;
  overflow-x: hidden;
  position: relative;
}

/* ========================
   Background Effects
======================== */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,106,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,106,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ========================
   Layout
======================== */
main {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ========================
   Header
======================== */
header {
  text-align: center;
  padding-top: 1rem;
}

.title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 12vw, 5rem);
  letter-spacing: 0.1em;
  color: var(--accent-light);
  line-height: 1;
}

.subtitle {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

/* ========================
   Status Bar
======================== */
.status-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
}

.bingo-count {
  display: flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
}

.count-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--accent-light);
  line-height: 1;
  transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
}

.count-num.bump {
  transform: scale(1.3);
}

.count-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
}

.status-msg {
  flex: 1;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
}

.btn-reset {
  background: var(--surface2);
  border-color: var(--border-bright);
  color: var(--text-secondary);
}
.btn-reset:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ========================
   Board
======================== */
.board-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.capture-area {
  background: #fefefe;
  padding: 1.25rem;
}

.capture-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.875rem;
}

.capture-title {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-body);
}

.capture-score {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-light);
  font-family: var(--font-body);
}

.board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
}

.cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: clamp(13px, 3.5vw, 16px);
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  transition: transform 0.1s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.cell::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s ease;
  border-radius: inherit;
}

.cell:hover:not(.cell-center) {
  transform: scale(0.96);
  border-color: var(--border-bright);
  color: var(--text-primary);
}

.cell:active:not(.cell-center) {
  transform: scale(0.90);
}

.cell.marked {
  background: var(--blue-bg);
  border-color: var(--blue);
  color: var(--blue);
}

.cell.bingo {
  background: var(--green-bg);
  border-color: var(--green);
  color: var(--green);
}

.cell-center {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-light);
  cursor: default;
  font-size: clamp(14px, 4vw, 18px);
}

@keyframes bingo-pulse {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.cell.bingo-new {
  animation: bingo-pulse 0.4s ease;
}

.capture-footer, .capture-footer a {
  text-align: center;
  margin-top: 0.875rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-decoration: none;
}

/* ========================
   Action Buttons
======================== */
.action-bar {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  font-size: 0.875rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid var(--border);
}

.btn-action:active {
  transform: scale(0.97);
}

.btn-save {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-light);
  font-weight: 500;
}

.btn-save:hover {
  background: rgb(255 189 106 / 25%);
}

.share-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn-x {
  background: rgba(29, 155, 240, 0.12);
  border-color: rgba(29, 155, 240, 0.5);
  color: #1d9bf0;
}
.btn-x:hover {
  background: rgba(29, 155, 240, 0.22);
}

.btn-fb {
  background: rgba(24,119,242,0.1);
  border-color: rgba(24,119,242,0.4);
  color: #4fa3e8;
}
.btn-fb:hover {
  background: rgba(24,119,242,0.2);
}

.btn-kakao {
  background: #f9e000;
  border-color: #e0ca00;
  color: #3a2929;
  font-weight: 500;
}
.btn-kakao:hover {
  background: #ffe500;
}

/* ========================
   Save Toast
======================== */
.save-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--surface2);
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 0.8rem;
  padding: 8px 20px;
  border-radius: 99px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  white-space: nowrap;
}

.save-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========================
   Responsive
======================== */
@media (max-width: 400px) {
  body { padding: 1.25rem 0.75rem 3rem; }
  .capture-area { padding: 1rem; }
  .share-group { grid-template-columns: 1fr 1fr; }
}