/* ==========================================
   Theme Switcher Button Styling (Common for both light/dark)
   ========================================== */
.theme-toggle-btn {
  position: absolute;
  top: 20px;
  right: 0px;
  background: none;
  border: 1px solid #d0d7de;
  border-radius: 50%;
  width: 34px;
  height: 34px;
  font-size: 18px;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
  background-color: #f9fafb;
  transition: all 0.25s ease;
  z-index: 1000;
  outline: none;
}

.theme-toggle-btn:hover {
  background-color: #f0f3f6;
  border-color: #1b1f24;
  transform: scale(1.05);
}

.theme-toggle-btn:focus-visible {
  outline: 2px solid #0366d6;
  outline-offset: 2px;
}

/* ==========================================
   Dark Theme Definition
   ========================================== */
html[data-theme="dark"] {
  --bg-color: #121212;
  --surface-color: #1E1E1E;
  --surface-secondary: #252525;
  --border-color: #343434;
  --text-primary: #F5F5F5;
  --text-secondary: #C8C8C8;
  --text-disabled: #8E8E8E;
  
  --success-color: #81c784;
  --warning-color: #ffb74d;
  --error-color: #e57373;
  --primary-color: #0366d6;
  --primary-hover: #4da3ff;
}

/* ==========================================
   Dark Theme Rules (Desktop)
   ========================================== */
html[data-theme="dark"] body {
  background-color: var(--bg-color) !important;
  color: var(--text-primary) !important;
}

/* Transitions for dynamic theme switching */
body, a, input, select, textarea, button, div, table, td, span, header, footer {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

/* Link override */
html[data-theme="dark"] a {
  color: #4da3ff;
}
html[data-theme="dark"] a:hover,
html[data-theme="dark"] a:focus-visible {
  color: #ff7043;
}

/* Headers & Footers */
html[data-theme="dark"] #headerBlock > div.mainMenu a {
  background-color: var(--surface-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.active {
  background-color: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.insite:hover {
  background-color: var(--primary-hover);
  color: #121212;
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.outsite {
  background-color: #1b3a24;
  color: #4ade80;
  border-color: #2e7d32;
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.outsite:hover {
  background-color: #00A862;
  color: #fff;
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.user {
  background-color: #3e2723;
  color: #ff7043;
  border-color: #5d4037;
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.user:hover {
  background-color: #ff5722;
  color: #fff;
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.logout {
  background-color: var(--surface-secondary);
  color: var(--text-secondary);
  border-color: var(--border-color);
}

html[data-theme="dark"] #headerBlock > div.mainMenu a.logout:hover {
  background-color: #ff5722;
  color: #fff;
}

html[data-theme="dark"] #footerBlock {
  color: var(--text-disabled) !important;
}

html[data-theme="dark"] #footerBlock .footerNotice b,
html[data-theme="dark"] .footerBrand {
  color: var(--text-primary) !important;
}

html[data-theme="dark"] .footerBrand a {
  color: #4da3ff;
}

html[data-theme="dark"] .footerBrand a:hover {
  color: #80bfff;
}

html[data-theme="dark"] .mainTitle {
  background-color: var(--surface-color) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

html[data-theme="dark"] .mainTitle h1 {
  color: var(--text-primary);
}

html[data-theme="dark"] .mainTitle p {
  color: var(--text-secondary);
}

/* User block & Nickname inputs */
html[data-theme="dark"] #userBlock {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] #userBlock input[type="text"] {
  background-color: var(--bg-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] #userBlock input[type="text"]:focus {
  border-color: var(--primary-hover);
  box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.3);
}

html[data-theme="dark"] #userBlock button {
  background-color: var(--surface-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] #userBlock button:hover {
  background-color: #343434;
}

/* Buttons & Controls */
html[data-theme="dark"] .btns a {
  background-color: var(--surface-color);
  color: #4da3ff;
  border-color: var(--border-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

html[data-theme="dark"] .btns a:hover {
  background-color: var(--primary-color);
  color: #fff;
  border-color: transparent;
}

html[data-theme="dark"] .settings label {
  color: var(--text-secondary) !important;
}


/* Calculator Tables */
html[data-theme="dark"] .calc {
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] .calc td {
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  color: var(--text-primary);
}

html[data-theme="dark"] .calc td.title {
  background-color: var(--surface-secondary) !important;
  color: var(--text-primary) !important;
}

html[data-theme="dark"] .calc input[type="text"],
html[data-theme="dark"] .calc select,
html[data-theme="dark"] select {
  background-color: var(--bg-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] .calc input[type="text"]:focus,
html[data-theme="dark"] .calc select:focus,
html[data-theme="dark"] select:focus {
  border-color: var(--primary-hover);
  outline: none;
}

/* Slider Overrides */
html[data-theme="dark"] .ratio-slider {
  background: linear-gradient(to right, rgba(255, 82, 82, 0.4) 0%, rgba(68, 138, 255, 0.4) 100%);
}

html[data-theme="dark"] .ratio-slider::-webkit-slider-thumb {
  background: var(--text-primary);
}

html[data-theme="dark"] .ratio-slider::-webkit-slider-thumb:hover {
  background: #ff7043;
}

html[data-theme="dark"] .meetsCutoff-slider {
  background: linear-gradient(to right, rgba(68, 138, 255, 0.4) 0%, rgba(76, 175, 80, 0.4) 100%);
}

html[data-theme="dark"] .meetsCutoff-slider::-webkit-slider-thumb {
  background: var(--text-primary);
}

html[data-theme="dark"] .meetsCutoff-slider::-webkit-slider-thumb:hover {
  background: #66bb6a;
}

/* Graph Bars */
html[data-theme="dark"] .bar-container {
  background-color: var(--surface-secondary);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] .bar-fill {
  background-color: #1b5e20 !important;
}

html[data-theme="dark"] .red-label {
  color: var(--error-color);
}

html[data-theme="dark"] .red-line-focus {
  background-color: var(--error-color) !important;
}

html[data-theme="dark"] .yellow-line {
  background-color: #ffff00 !important;
}

/* Focus classes */
html[data-theme="dark"] .focus1 {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--error-color);
}

html[data-theme="dark"] .focus2 {
  background-color: var(--bg-color) !important;
  color: #ffff00 !important;
}

/* Notice & Guide Boxes */
html[data-theme="dark"] .notice-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

html[data-theme="dark"] .notice-box b {
  color: #60a5fa;
}

html[data-theme="dark"] .notice-box .term {
  color: var(--text-primary);
}

html[data-theme="dark"] .top-guide {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

/* Scroll Top Button */
html[data-theme="dark"] #scrollTopBtn {
  color: var(--text-primary);
}

/* Toggle button styling override in dark theme */
html[data-theme="dark"] .theme-toggle-btn {
  background-color: var(--surface-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

html[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: var(--surface-color);
  border-color: var(--text-primary);
}

/* Popups & Dialogs (custom modals or browser prompts) */
html[data-theme="dark"] .modal-content,
html[data-theme="dark"] .dialog,
html[data-theme="dark"] .popup {
  background-color: var(--surface-color) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
}

/* Scrollbar Customization */
html[data-theme="dark"] ::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
html[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--bg-color);
}
html[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 5px;
}
html[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--text-disabled);
}

/* disabled inputs and selects */
html[data-theme="dark"] input:disabled,
html[data-theme="dark"] input[disabled],
html[data-theme="dark"] select:disabled,
html[data-theme="dark"] select[disabled],
html[data-theme="dark"] textarea:disabled,
html[data-theme="dark"] textarea[disabled],
html[data-theme="dark"] button:disabled,
html[data-theme="dark"] button[disabled] {
  background-color: var(--surface-secondary) !important;
  color: var(--text-disabled) !important;
  border-color: var(--border-color) !important;
}

/* Memo overrides */
html[data-theme="dark"] .memo,
html[data-theme="dark"] textarea.memo,
html[data-theme="dark"] .memo-readItem,
html[data-theme="dark"] textarea.memo:disabled,
html[data-theme="dark"] textarea.memo[disabled],
html[data-theme="dark"] textarea.memo[readonly] {
  background-color: var(--surface-color) !important;
  color: var(--text-primary) !important;
  border: none !important;
}

/* Card overrides */
html[data-theme="dark"] .view-block {
  background-color: var(--surface-color) !important;
  border-color: var(--border-color) !important;
  color: var(--text-primary) !important;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3) !important;
}

html[data-theme="dark"] .view-block.active {
  background-color: #1e3a8a !important;
  border-color: #3b82f6 !important;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.4) !important;
}

html[data-theme="dark"] .view-block-placeholder {
  border-color: #3b82f6 !important;
  background-color: #172554 !important;
}

html[data-theme="dark"] #calcMode label {
  color: var(--text-primary) !important;
}

/* PC 공통 버튼 & 모든 버튼 포괄 오버라이드 -> 밝은 하늘색 아웃라인 스타일 적용 */
html[data-theme="dark"] .btns a,
html[data-theme="dark"] .btns button,
html[data-theme="dark"] button,
html[data-theme="dark"] #addBtn,
html[data-theme="dark"] .settings button,
html[data-theme="dark"] #joinForm button,
html[data-theme="dark"] #joinForm .joinBtn,
html[data-theme="dark"] #loginForm button,
html[data-theme="dark"] #loginForm .loginBtn {
  background-color: var(--surface-color) !important;
  color: #80d8ff !important;
  border: 1px solid var(--border-color) !important;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2) !important;
  font-weight: bold !important;
}

html[data-theme="dark"] .btns a:hover,
html[data-theme="dark"] .btns button:hover,
html[data-theme="dark"] button:hover,
html[data-theme="dark"] #addBtn:hover,
html[data-theme="dark"] .settings button:hover,
html[data-theme="dark"] #joinForm button:hover,
html[data-theme="dark"] #joinForm .joinBtn:hover,
html[data-theme="dark"] #loginForm button:hover,
html[data-theme="dark"] #loginForm .loginBtn:hover {
  background-color: #80d8ff !important;
  color: #121212 !important;
  border-color: transparent !important;
}


html[data-theme="dark"] .theme-toggle-btn {
  background-color: var(--surface-secondary) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}

html[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: var(--surface-color) !important;
  border-color: var(--text-primary) !important;
}

/* Search block overrides */
html[data-theme="dark"] #s_block {
  background-color: var(--surface-color) !important;
  border-color: var(--border-color) !important;
  color: var(--text-primary) !important;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3) !important;
}

html[data-theme="dark"] #s_block span {
  color: var(--text-secondary) !important;
}

html[data-theme="dark"] #s_block input[type="text"],
html[data-theme="dark"] #s_block select {
  background-color: var(--bg-color) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
}

html[data-theme="dark"] #s_block button,
html[data-theme="dark"] #s_block button.search-button,
html[data-theme="dark"] #s_block button.myCalc-button,
html[data-theme="dark"] #s_block button#s_btn {
  background-color: var(--surface-color) !important;
  color: #80d8ff !important;
  border: 1px solid var(--border-color) !important;
  font-weight: bold !important;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2) !important;
}

html[data-theme="dark"] #s_block button:hover,
html[data-theme="dark"] #s_block button.search-button:hover,
html[data-theme="dark"] #s_block button.myCalc-button:hover,
html[data-theme="dark"] #s_block button#s_btn:hover {
  background-color: #80d8ff !important;
  color: #121212 !important;
  border-color: transparent !important;
}

/* Review bubble overrides */
html[data-theme="dark"] .review-bubble {
  background-color: var(--surface-secondary) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
}

html[data-theme="dark"] .review-bubble::after {
  border-color: transparent transparent transparent var(--surface-secondary) !important;
  border-left-color: var(--border-color) !important;
}

html[data-theme="dark"] .calc-block .top-title .review {
  color: var(--text-primary) !important;
}

html[data-theme="dark"] .calc-block .top-title .nkNm {
  color: var(--text-primary) !important;
}

html[data-theme="dark"] .calc-block .top-title .modDt {
  color: var(--text-disabled) !important;
}

/* 다크모드 파란색 계열 글자 가독성 보정 */
html[data-theme="dark"] .item-content .order,
html[data-theme="dark"] .m-switch-button.active,
html[data-theme="dark"] .meetsCutoff-value,
html[data-theme="dark"] .meetsCutoff-value.percent.focus2,
html[data-theme="dark"] .mobile-footer__brand a,
html[data-theme="dark"] .footer__brand a,
html[data-theme="dark"] .btn-share-link,
html[data-theme="dark"] .reviewModBtn,
html[data-theme="dark"] .meetsCutoff-desc,
html[data-theme="dark"] [style*="1e3a8a"],
html[data-theme="dark"] [style*="1E3A8A"],
html[data-theme="dark"] [style*="0366d6"],
html[data-theme="dark"] [style*="0366D6"],
html[data-theme="dark"] [style*="007bff"],
html[data-theme="dark"] [style*="007BFF"],
html[data-theme="dark"] [style*="2563eb"],
html[data-theme="dark"] [style*="2563EB"] {
  color: #80d8ff !important;
}

html[data-theme="dark"] .m-switch-button.active {
  border-bottom-color: #80d8ff !important;
}

html[data-theme="dark"] .reviewModBtn {
  border-color: #80d8ff !important;
}

/* 다크모드 최초합격, 합격권 등 font color="blue" 글자 가독성 보정 */
html[data-theme="dark"] font[color="blue"] {
  color: #80d8ff !important;
}
/* 다크모드 추가합격, 추합권 등 font color="green" 및 인라인 green 글자 가독성 보정 */
html[data-theme="dark"] font[color="green"],
html[data-theme="dark"] [style*="green"],
html[data-theme="dark"] [style*="GREEN"],
html[data-theme="dark"] [style*="#28a745"],
html[data-theme="dark"] [style*="#28A745"],
html[data-theme="dark"] .passRate1,
html[data-theme="dark"] .passRate2,
html[data-theme="dark"] .passRate3 {
  color: #4caf50 !important;
}

/* 다크모드 결과막대 색상 단일화 보정 */
html[data-theme="dark"] .result-bar {
  background-color: #333 !important;
}
html[data-theme="dark"] .result-bar-blue {
  background-color: #80d8ff !important;
}
html[data-theme="dark"] .result-bar-green {
  background-color: #1b5e20 !important;
}

/* 하단 조작 버튼들 (초기화, 삭제, 캡쳐, 저장, 공유 등) 다크모드 가독성 보정 */
html[data-theme="dark"] .btns .resetBtn,
html[data-theme="dark"] .btns .delBtn,
html[data-theme="dark"] .btns .cpt1Btn,
html[data-theme="dark"] .btns .save1Btn,
html[data-theme="dark"] .btns .share1Btn,
html[data-theme="dark"] .btns-right-group a.shareFeedbackBtn,
html[data-theme="dark"] .btns .shareFeedbackBtn,
html[data-theme="dark"] .shareFeedbackBtn {
  color: #80d8ff !important;
  border-color: var(--border-color) !important;
  background-color: var(--surface-color) !important;
}

html[data-theme="dark"] .btns .resetBtn:hover,
html[data-theme="dark"] .btns .delBtn:hover,
html[data-theme="dark"] .btns .cpt1Btn:hover,
html[data-theme="dark"] .btns .save1Btn:hover,
html[data-theme="dark"] .btns .share1Btn:hover,
html[data-theme="dark"] .btns-right-group a.shareFeedbackBtn:hover,
html[data-theme="dark"] .btns .shareFeedbackBtn:hover,
html[data-theme="dark"] .shareFeedbackBtn:hover {
  background-color: #80d8ff !important;
  color: #121212 !important;
  border-color: transparent !important;
}

/* 다크모드 체크박스 및 라디오버튼 가독성 보정 */
html[data-theme="dark"] input[type="checkbox"],
html[data-theme="dark"] input[type="radio"] {
  filter: invert(0.85) hue-rotate(180deg) !important;
  accent-color: #80d8ff !important;
}

/* 다크모드 탭 버튼 스타일 -> 배경 및 테두리 블럭 제거, 주간모드처럼 하단선만 하이라이트 */
html[data-theme="dark"] .m-switch-button {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  border-bottom: 2px solid transparent !important;
  box-shadow: none !important;
  color: var(--text-secondary) !important;
}

html[data-theme="dark"] .m-switch-button.active {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  border-bottom: 2px solid #80d8ff !important;
  box-shadow: none !important;
  color: #80d8ff !important;
  font-weight: bold !important;
}

html[data-theme="dark"] .m-switch-button:hover {
  color: #80d8ff !important;
}

/* 다크모드 탭 컨테이너 전체 배경 라인색 보정 */
html[data-theme="dark"] .tab-container {
  border-bottom-color: #1E1E1E !important;
}

/* 다크모드 캡쳐 옵션 라벨 글자색 가독성 보정 */
html[data-theme="dark"] .cpt-option-label {
  color: var(--text-primary) !important;
}

/* 모바일 비례상수공유 및 점공공유 검색 블럭 내 버튼 -> 후기수정 버튼 스타일과 동일하게 아웃라인 매치 */
html[data-theme="dark"] #s_btn,
html[data-theme="dark"] #s_all_btn,
html[data-theme="dark"] #myCalc,
html[data-theme="dark"] #s_right button {
  background-color: var(--surface-color) !important;
  color: #80d8ff !important;
  border: 1px solid var(--border-color) !important;
  font-weight: bold !important;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2) !important;
}

html[data-theme="dark"] #s_btn:hover,
html[data-theme="dark"] #s_all_btn:hover,
html[data-theme="dark"] #myCalc:hover,
html[data-theme="dark"] #s_right button:hover {
  background-color: #80d8ff !important;
  color: #121212 !important;
  border-color: transparent !important;
}

/* 공유 목록 페이지 맨 상단 공지안내문 글자색 가독성 보정 */
html[data-theme="dark"] .notice {
  color: #80d8ff !important;
}

/* 다크모드 공유목록 내 공유번호 링크 색상 차분하게 감쇠 보정 */
html[data-theme="dark"] .shareNoLink {
  color: #555 !important;
  text-decoration: none !important;
}

html[data-theme="dark"] .shareNoLink:hover {
  color: #80d8ff !important;
}