/* ============================================
   Retro Pixel UI Light — S18-L 風格覆蓋
   Google Fonts 由 HTML <link> 載入（更快）
   ============================================ */

/* ========== 通用變數覆蓋（index / admin / teacher / events） ========== */
:root {
  /* 背景 */
  --bg-primary: #F5F2EB !important;     /* 羊皮紙 */
  --bg-card: #FFFFFF !important;         /* 卡片白 */
  --bg-input: #FFFFFF !important;
  --bg-hover: #EDEAE0 !important;        /* 互動 hover */

  /* 文字 */
  --text-primary: #1A1A2E !important;    /* 墨水色 */
  --text-secondary: #4A4A6A !important;
  --text-muted: #8A8A9A !important;

  /* 品牌色 — 薄荷綠取代金棕色 */
  --accent: #5CDB95 !important;
  --accent-hover: #3BAA6E !important;
  --accent-glow: rgba(92,219,149,0.15) !important;

  /* 狀態色 */
  --success: #3BAA6E !important;
  --success-bg: rgba(59,170,110,0.12) !important;
  --error: #D94F4F !important;
  --error-bg: rgba(217,79,79,0.12) !important;
  --warning: #D4A017 !important;
  --warning-bg: rgba(212,160,23,0.12) !important;
  --info: #67E8F9 !important;
  --info-bg: rgba(103,232,249,0.12) !important;

  /* 邊框 */
  --border: #D6D2C8 !important;
  --border-focus: #5CDB95 !important;

  /* 陰影 — 像素偏移 */
  --shadow: 3px 3px 0 #C8C4B8 !important;

  /* leader.html 專用變數 */
  --bg: #F5F2EB !important;
  --bg2: #EDEAE0 !important;
  --card: #FFFFFF !important;
  --text: #1A1A2E !important;
  --text2: #4A4A6A !important;
  --accent2: #3BAA6E !important;

  /* S18-L 額外 token */
  --color-bg-secondary: #EDEAE0;
  --color-border-accent: #A78BFA;
  --color-brand-secondary: #A78BFA;
  --color-brand-accent: #67E8F9;
  --color-brand-yellow: #F5C842;
  --shadow-card: 3px 3px 0 #C8C4B8;
  --shadow-card-hover: 4px 4px 0 #A78BFA;
  --shadow-pixel: 2px 2px 0 rgba(0,0,0,0.12);
  --shadow-btn: 3px 3px 0 #1A1A2E;
  --shadow-btn-hover: 1px 1px 0 #1A1A2E;

  /* 像素字體 */
  --font-display: 'Press Start 2P', monospace;
  --font-heading: 'VT323', monospace;
  --font-body: 'Space Mono', 'IBM Plex Mono', monospace;
}

/* ========== 全域字體覆蓋 ========== */
* {
  border-radius: 0 !important;  /* 零圓角 — 像素網格特徵 */
}

body {
  font-family: 'Space Mono', 'IBM Plex Mono', monospace !important;
  background-color: #F5F2EB !important;
  color: #1A1A2E !important;
  /* 淡點陣背景紋理 */
  background-image: radial-gradient(circle, #D6D2C8 0.5px, transparent 0.5px) !important;
  background-size: 16px 16px !important;
}

/* ========== 標題字體 ========== */
h1, .logo h1 {
  font-family: 'Press Start 2P', monospace !important;
  font-size: 20px !important;
  line-height: 1.6 !important;
  letter-spacing: 0.04em !important;
  color: #1A1A2E !important;
}

h2, h3, .section-title, .card-header,
.sidebar-group-label, .tab-item, .tab-bar .tab-item,
.panel-title, .topbar-role {
  font-family: 'VT323', monospace !important;
  letter-spacing: 0.03em !important;
  color: #1A1A2E !important;
}

h2 { font-size: 28px !important; line-height: 40px !important; }
h3 { font-size: 22px !important; line-height: 32px !important; }

/* 副標題 / 標籤 */
label, .form-group label, .badge, .form-hint,
.filter-bar label {
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
  letter-spacing: 0.02em !important;
}

/* 內文 */
p, span, td, th, li, input, select, textarea, .form-group input,
.form-group select, .form-group textarea, .empty-state {
  font-family: 'Space Mono', monospace !important;
  font-size: 13px !important;
  line-height: 22px !important;
}

/* ========== Logo ========== */
.logo-icon, .logo svg {
  color: #5CDB95 !important;
  fill: #5CDB95 !important;
}

.logo p, .logo .logo-subtitle {
  font-family: 'VT323', monospace !important;
  color: #4A4A6A !important;
}

/* ========== 卡片 ========== */
.card, .login-card, .login-box, .course-card, .stat-card,
.phase-card, .panel {
  background: #FFFFFF !important;
  border: 2px solid #D6D2C8 !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
  border-radius: 0 !important;
}

.card:hover, .course-card:hover, .stat-card:hover {
  box-shadow: 4px 4px 0 #A78BFA !important;
  border-color: #A78BFA !important;
}

/* ========== 按鈕 — 像素按壓效果 ========== */
.btn, button[class*="btn"] {
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
  border-radius: 0 !important;
  transition: all 50ms steps(4) !important;
  cursor: pointer;
}

.btn-primary, .btn[style*="accent"] {
  background: #5CDB95 !important;
  color: #1A1A2E !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #1A1A2E !important;
}

.btn-primary:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(2px, 2px) !important;
}

.btn-primary:active {
  box-shadow: none !important;
  transform: translate(3px, 3px) !important;
}

.btn-success {
  background: #3BAA6E !important;
  color: #FFFFFF !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #1A1A2E !important;
}

.btn-success:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(2px, 2px) !important;
}

.btn-danger {
  background: #D94F4F !important;
  color: #FFFFFF !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #1A1A2E !important;
}

.btn-danger:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(2px, 2px) !important;
}

.btn-warning {
  background: #F5C842 !important;
  color: #1A1A2E !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #1A1A2E !important;
}

.btn-warning:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(2px, 2px) !important;
}

.btn-info {
  background: #67E8F9 !important;
  color: #1A1A2E !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #1A1A2E !important;
}

.btn-info:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(2px, 2px) !important;
}

.btn-secondary {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
}

.btn-secondary:hover {
  background: #EDEAE0 !important;
  box-shadow: 1px 1px 0 #C8C4B8 !important;
  transform: translate(2px, 2px) !important;
}

.btn-sm {
  font-size: 15px !important;
  padding: 6px 14px !important;
  box-shadow: 2px 2px 0 #1A1A2E !important;
}

.btn-sm:hover {
  box-shadow: 1px 1px 0 #1A1A2E !important;
  transform: translate(1px, 1px) !important;
}

/* ========== 表單輸入 ========== */
input, select, textarea,
.form-group input, .form-group select, .form-group textarea {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border: 2px solid #B8B4A8 !important;
  border-radius: 0 !important;
  box-shadow: inset 2px 2px 0 #EDEAE0 !important;
  padding: 10px 16px !important;
}

input:focus, select:focus, textarea:focus {
  border-color: #5CDB95 !important;
  box-shadow: inset 2px 2px 0 #D6D2C8 !important;
  outline: 2px solid #5CDB95 !important;
  outline-offset: 2px !important;
}

input::placeholder, textarea::placeholder {
  color: #8A8A9A !important;
}

/* ========== 表格 ========== */
table {
  border-collapse: collapse !important;
}

th {
  background: #EDEAE0 !important;
  color: #1A1A2E !important;
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
  border: 1px solid #D6D2C8 !important;
  padding: 10px 14px !important;
}

td {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border: 1px solid #D6D2C8 !important;
  padding: 8px 14px !important;
}

tr:hover td {
  background: #F5F2EB !important;
}

.table-wrap {
  border: 2px solid #D6D2C8 !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
}

/* ========== Badge ========== */
.badge {
  border-radius: 0 !important;
  font-family: 'VT323', monospace !important;
  font-size: 16px !important;
  letter-spacing: 0.02em !important;
  border: 1px solid #D6D2C8 !important;
}

.badge-success, .badge-ready {
  background: #D4F5E5 !important;
  color: #1A6B48 !important;
  border-color: #3BAA6E !important;
}

.badge-error, .badge-danger {
  background: #FFE5E5 !important;
  color: #8B1A1A !important;
  border-color: #D94F4F !important;
}

.badge-warning {
  background: #FEF3C7 !important;
  color: #92400E !important;
  border-color: #D4A017 !important;
}

.badge-info {
  background: #E0F7FA !important;
  color: #0369A1 !important;
  border-color: #67E8F9 !important;
}

.badge-accent {
  background: #EDE9FE !important;
  color: #5B21B6 !important;
  border-color: #A78BFA !important;
}

.badge-muted {
  background: #EDEAE0 !important;
  color: #4A4A6A !important;
  border-color: #D6D2C8 !important;
}

/* ========== Sidebar ========== */
.sidebar {
  background: #EDEAE0 !important;
  border-right: 2px solid #D6D2C8 !important;
  box-shadow: none !important;
}

.sidebar h2, .sidebar .logo h1 {
  color: #1A1A2E !important;
  font-family: 'Press Start 2P', monospace !important;
  font-size: 12px !important;
}

.sidebar-item, .sidebar .nav-item {
  font-family: 'VT323', monospace !important;
  font-size: 20px !important;
  color: #4A4A6A !important;
  border-radius: 0 !important;
  border-left: 3px solid transparent !important;
}

.sidebar-item:hover, .sidebar .nav-item:hover {
  background: #F5F2EB !important;
  color: #1A1A2E !important;
  border-left-color: #5CDB95 !important;
}

.sidebar-item.active, .sidebar .nav-item.active {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border-left-color: #5CDB95 !important;
  box-shadow: 2px 2px 0 #C8C4B8 !important;
}

.sidebar-group-label {
  font-family: 'Press Start 2P', monospace !important;
  font-size: 8px !important;
  color: #8A8A9A !important;
  letter-spacing: 0.06em !important;
  text-transform: uppercase !important;
}

/* ========== Topbar ========== */
.topbar, .header {
  background: #F5F2EB !important;
  border-bottom: 2px solid #D6D2C8 !important;
  box-shadow: none !important;
  color: #1A1A2E !important;
}

.topbar-user, .topbar-role, .header-user, .header-badge {
  font-family: 'VT323', monospace !important;
  color: #4A4A6A !important;
}

.header-logo {
  font-family: 'Press Start 2P', monospace !important;
  font-size: 14px !important;
  color: #1A1A2E !important;
}

/* ========== Tab Bar ========== */
.tab-bar, .tab-panel {
  border-color: #D6D2C8 !important;
}

.tab-item {
  font-family: 'VT323', monospace !important;
  font-size: 20px !important;
  color: #4A4A6A !important;
  background: transparent !important;
  border: 2px solid transparent !important;
  border-bottom: none !important;
}

.tab-item:hover {
  color: #1A1A2E !important;
  background: #EDEAE0 !important;
}

.tab-item.active {
  color: #1A1A2E !important;
  background: #FFFFFF !important;
  border-color: #D6D2C8 !important;
  border-bottom-color: #FFFFFF !important;
  box-shadow: 2px -2px 0 #C8C4B8 !important;
}

/* ========== Modal ========== */
.modal-overlay {
  background: rgba(26, 26, 46, 0.5) !important;
}

.modal {
  background: #FFFFFF !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 6px 6px 0 #C8C4B8 !important;
  border-radius: 0 !important;
  color: #1A1A2E !important;
}

.modal h3, .modal h2 {
  font-family: 'VT323', monospace !important;
  color: #1A1A2E !important;
  border-bottom: 2px dashed #D6D2C8 !important;
}

.modal-footer {
  border-top: 2px solid #D6D2C8 !important;
  background: #F5F2EB !important;
}

/* ========== Toast ========== */
.toast {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
  border-radius: 0 !important;
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
}

.toast-success {
  border-left: 4px solid #3BAA6E !important;
}

.toast-error {
  border-left: 4px solid #D94F4F !important;
}

/* ========== 統計卡片 ========== */
.stat-card, .stat-grid .stat-card {
  background: #FFFFFF !important;
  border: 2px solid #D6D2C8 !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
}

.stat-card h3, .stat-card .stat-value {
  font-family: 'Press Start 2P', monospace !important;
  color: #5CDB95 !important;
}

.stat-card p, .stat-card .stat-label {
  font-family: 'VT323', monospace !important;
  color: #4A4A6A !important;
}

/* ========== 進度條 ========== */
.progress-bar {
  background: #EDEAE0 !important;
  border: 2px solid #D6D2C8 !important;
  border-radius: 0 !important;
}

.progress-bar-fill, .progress-bar > div {
  background: #5CDB95 !important;
  border-radius: 0 !important;
}

/* ========== 課程卡片（index.html） ========== */
.course-card {
  border: 2px solid #D6D2C8 !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
}

.badge-signed {
  background: #EDE9FE !important;
  color: #5B21B6 !important;
}

.badge-not-started {
  background: #EDEAE0 !important;
  color: #4A4A6A !important;
}

.badge-ended {
  background: #FFE5E5 !important;
  color: #8B1A1A !important;
}

/* ========== Spinner ========== */
.spinner {
  border-color: #EDEAE0 !important;
  border-top-color: #5CDB95 !important;
}

/* ========== 空狀態 ========== */
.empty-state {
  color: #8A8A9A !important;
  font-family: 'VT323', monospace !important;
  font-size: 22px !important;
}

/* ========== 建議按鈕（index.html 模糊搜尋） ========== */
.suggestions {
  background: #FFFFFF !important;
  border: 2px solid #D6D2C8 !important;
  box-shadow: 3px 3px 0 #C8C4B8 !important;
}

.suggest-btn {
  color: #4A4A6A !important;
  border: 1px solid #D6D2C8 !important;
  background: #EDEAE0 !important;
}

.suggest-btn:hover {
  background: #5CDB95 !important;
  color: #1A1A2E !important;
  border-color: #1A1A2E !important;
}

/* ========== 成功頁面（index.html 登入成功） ========== */
.success-icon {
  color: #5CDB95 !important;
}

.success-info {
  background: #D4F5E5 !important;
  border: 2px solid #3BAA6E !important;
  color: #1A6B48 !important;
}

/* ========== 訊息提示 ========== */
.msg {
  border: 2px solid #D6D2C8 !important;
  border-radius: 0 !important;
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
}

/* ========== 登入頁面 ========== */
.login-wrapper, .login-wrap {
  background: #F5F2EB !important;
}

.login-card, .login-box {
  background: #FFFFFF !important;
  border: 2px solid #1A1A2E !important;
  box-shadow: 6px 6px 0 #C8C4B8 !important;
}

.login-box .tabs button, .login-box .tabs .tab-btn {
  font-family: 'VT323', monospace !important;
  font-size: 22px !important;
  color: #4A4A6A !important;
  background: #EDEAE0 !important;
  border: 2px solid #D6D2C8 !important;
}

.login-box .tabs button.active, .login-box .tabs .tab-btn.active {
  background: #FFFFFF !important;
  color: #1A1A2E !important;
  border-color: #1A1A2E !important;
}

/* ========== 連結 ========== */
a {
  color: #2E6BE6 !important;
}

a:hover {
  color: #1A1A2E !important;
}

/* ========== Filter bar ========== */
.filter-bar {
  background: #EDEAE0 !important;
  border: 2px solid #D6D2C8 !important;
  border-radius: 0 !important;
}

/* ========== Checkbox ========== */
.checkbox-label input[type="checkbox"] {
  accent-color: #5CDB95 !important;
}

/* ========== Phase card (admin) ========== */
.phase-card {
  background: #FFFFFF !important;
  border: 2px solid #D6D2C8 !important;
}

.phase-header {
  background: #EDEAE0 !important;
  border-bottom: 2px solid #D6D2C8 !important;
  font-family: 'VT323', monospace !important;
}

.phase-item {
  border-bottom: 1px dashed #D6D2C8 !important;
}

/* ========== Nav Links (index footer) ========== */
.nav-links a {
  color: #4A4A6A !important;
  font-family: 'VT323', monospace !important;
  font-size: 18px !important;
}

.nav-links a:hover {
  color: #5CDB95 !important;
}

/* ========== 照片 ========== */
.photo-thumb {
  border: 2px solid #D6D2C8 !important;
  border-radius: 0 !important;
}

/* ========== 滾動條 ========== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #EDEAE0;
}

::-webkit-scrollbar-thumb {
  background: #B8B4A8;
  border: 2px solid #EDEAE0;
}

::-webkit-scrollbar-thumb:hover {
  background: #8A8A9A;
}

/* ========== 選取色 ========== */
::selection {
  background: #A78BFA;
  color: #FFFFFF;
}

/* ========== 主佈局 ========== */
.layout {
  background: #F5F2EB !important;
}

.main-content {
  background: #F5F2EB !important;
}

/* ========== 動畫 — steps(4) 像素風 ========== */
@keyframes pixelBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* ========== Reduced Motion ========== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* ========== 響應式 ========== */
@media (max-width: 768px) {
  h1, .logo h1 {
    font-size: 14px !important;
  }

  h2 {
    font-size: 24px !important;
  }

  .sidebar {
    background: #EDEAE0 !important;
  }
}