/* ===== 테마 변수 ===== */
:root,
[data-theme="dark"] {
  --input-bg:      rgba(255, 255, 255, 0.07);
  --input-border:  rgba(255, 255, 255, 0.15);
  --input-focus:   rgba(255, 210, 0, 0.5);
  --input-color:   #ffffff;
  --label-form:    rgba(255, 255, 255, 0.75);
  --placeholder:   rgba(255, 255, 255, 0.3);
  --status-ok:     #4ade80;
  --status-err:    #f87171;
  --body-bg-start: #1a1a2e;
  --body-bg-mid:   #16213e;
  --body-bg-end:   #0f3460;
  --text-color:    #ffffff;
  --container-bg:  rgba(255, 255, 255, 0.05);
  --container-border: rgba(255, 255, 255, 0.1);
  --label-color:   rgba(255, 255, 255, 0.7);
  --hint-color:    rgba(255, 255, 255, 0.4);
  --counter-bg:    rgba(255, 255, 255, 0.1);
  --counter-btn-color: #ffffff;
  --counter-btn-hover: rgba(255, 255, 255, 0.15);
  --game-row-bg:   rgba(255, 255, 255, 0.06);
  --game-label-color: rgba(255, 255, 255, 0.5);
  --toggle-bg:     rgba(255, 255, 255, 0.12);
  --toggle-color:  #ffffff;
  --toggle-border: rgba(255, 255, 255, 0.2);
  --toggle-hover:  rgba(255, 255, 255, 0.2);
}

[data-theme="light"] {
  --input-bg:      rgba(0, 0, 0, 0.04);
  --input-border:  rgba(0, 0, 0, 0.15);
  --input-focus:   rgba(247, 151, 30, 0.5);
  --input-color:   #1a1a2e;
  --label-form:    rgba(26, 26, 46, 0.75);
  --placeholder:   rgba(26, 26, 46, 0.35);
  --status-ok:     #16a34a;
  --status-err:    #dc2626;
  --body-bg-start: #e8eaf6;
  --body-bg-mid:   #f3f4fb;
  --body-bg-end:   #dde1f5;
  --text-color:    #1a1a2e;
  --container-bg:  rgba(255, 255, 255, 0.85);
  --container-border: rgba(0, 0, 0, 0.08);
  --label-color:   rgba(26, 26, 46, 0.7);
  --hint-color:    rgba(26, 26, 46, 0.45);
  --counter-bg:    rgba(0, 0, 0, 0.07);
  --counter-btn-color: #1a1a2e;
  --counter-btn-hover: rgba(0, 0, 0, 0.1);
  --game-row-bg:   rgba(0, 0, 0, 0.04);
  --game-label-color: rgba(26, 26, 46, 0.5);
  --toggle-bg:     rgba(26, 26, 46, 0.08);
  --toggle-color:  #1a1a2e;
  --toggle-border: rgba(26, 26, 46, 0.15);
  --toggle-hover:  rgba(26, 26, 46, 0.14);
}

/* ===== 전환 애니메이션 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.35s ease, color 0.35s ease,
              border-color 0.35s ease, box-shadow 0.35s ease;
}

/* ===== 테마 토글 버튼 ===== */
#theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--toggle-bg);
  color: var(--toggle-color);
  border: 1px solid var(--toggle-border);
  border-radius: 2rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
  z-index: 100;
}

#theme-toggle:hover {
  background: var(--toggle-hover);
  transform: translateY(-1px);
}

#theme-toggle:active {
  transform: translateY(0);
}

/* ===== 레이아웃 ===== */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 72px 16px 40px;
  background: linear-gradient(135deg,
    var(--body-bg-start) 0%,
    var(--body-bg-mid)   50%,
    var(--body-bg-end)   100%);
  font-family: 'Segoe UI', 'Noto Sans KR', sans-serif;
  color: var(--text-color);
}

.container {
  background: var(--container-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--container-border);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 560px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 32px;
  letter-spacing: -0.5px;
}

.controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.controls label {
  font-size: 0.95rem;
  color: var(--label-color);
}

.count-selector {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--counter-bg);
  border-radius: 10px;
  overflow: hidden;
}

.count-selector button {
  background: none;
  border: none;
  color: var(--counter-btn-color);
  font-size: 1.3rem;
  width: 38px;
  height: 38px;
  cursor: pointer;
  transition: background 0.2s;
}

.count-selector button:hover:not(:disabled) {
  background: var(--counter-btn-hover);
}

.count-selector button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.count-selector span {
  width: 36px;
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
}

.count-hint {
  font-size: 0.8rem;
  color: var(--hint-color);
}

.draw-btn {
  background: linear-gradient(135deg, #f7971e, #ffd200);
  color: #1a1a2e;
  border: none;
  border-radius: 14px;
  padding: 14px 48px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(255, 210, 0, 0.3);
  margin-bottom: 32px;
}

.draw-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 210, 0, 0.45);
}

.draw-btn:active {
  transform: translateY(0);
}

#results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.game-row {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--game-row-bg);
  border-radius: 14px;
  padding: 14px 18px;
  animation: slideIn 0.4s ease both;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.game-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--game-label-color);
  min-width: 42px;
  text-align: left;
}

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

.ball {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  box-shadow: inset 0 -3px 6px rgba(0,0,0,0.25), 0 3px 8px rgba(0,0,0,0.3);
  animation: popIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.4); }
  to   { opacity: 1; transform: scale(1); }
}

.ball.yellow { background: linear-gradient(135deg, #f7b731, #f9ca24); }
.ball.blue   { background: linear-gradient(135deg, #4a90d9, #2d6cba); }
.ball.red    { background: linear-gradient(135deg, #e74c3c, #c0392b); }
.ball.gray   { background: linear-gradient(135deg, #7f8c8d, #555e6e); }
.ball.green  { background: linear-gradient(135deg, #27ae60, #1e8449); }

/* ===== 제휴문의 폼 ===== */
.contact-container {
  background: var(--container-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--container-border);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.contact-container h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--label-form);
}

.form-group input,
.form-group textarea {
  background: var(--input-bg);
  color: var(--input-color);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--placeholder);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px var(--input-focus);
}

.submit-btn {
  width: 100%;
  background: linear-gradient(135deg, #f7971e, #ffd200);
  color: #1a1a2e;
  border: none;
  border-radius: 12px;
  padding: 13px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 4px;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(255, 210, 0, 0.3);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 210, 0, 0.45);
}

.submit-btn:active {
  transform: translateY(0);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

#form-status {
  margin-top: 12px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 1.2em;
}

#form-status.success { color: var(--status-ok); }
#form-status.error   { color: var(--status-err); }

/* ===== Disqus 댓글 ===== */
.disqus-container {
  background: var(--container-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--container-border);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.disqus-container h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

/* ===== 미디어 쿼리 ===== */
@media (max-width: 480px) {
  .container { padding: 28px 20px; }
  h1 { font-size: 1.4rem; }
  .ball { width: 38px; height: 38px; font-size: 0.85rem; }
  .balls { gap: 6px; }
  #theme-toggle { top: 10px; right: 10px; padding: 6px 12px; font-size: 0.8rem; }
  .contact-container { padding: 28px 20px; }
}