/* ══════════════════════════════════════════════
   모의투자 - 통합 스타일시트
   이 파일 하나로 frontend/css/style.css 전체를 교체하세요
   ══════════════════════════════════════════════ */

:root {
  --color-accent: #5B5FEF;
  --color-up: #E23744;
  --color-down: #1E6FEE;
  --color-danger: #FF6B57;
  --color-text-primary: #1A1A1E;
  --color-text-secondary: #6B6B75;
  --color-bg: #F7F7FA;
  --color-surface: #FFFFFF;
  --color-border: #E5E5EA;
  --radius-button: 8px;
  --radius-card: 12px;
  --radius-login-card: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Pretendard', sans-serif;
}

body {
  background: var(--color-bg);
  color: var(--color-text-primary);
}

/* ══════════════════════════════════════════════
   공통 타이포그래피 / 레이아웃 토큰
   ══════════════════════════════════════════════ */

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 3%;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 14px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 3px;
}

.page-subtitle {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.back-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  margin-bottom: 16px;
}

/* 카드 */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px 26px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 14px;
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-title-row .card-title {
  margin-bottom: 0;
}

.card-caption {
  font-size: 11px;
  color: var(--color-text-secondary);
}

.card-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

/* 버튼 (전 화면 공통 크기) */
.btn-primary {
  width: 100%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-button);
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover { opacity: 0.92; }

.btn-secondary {
  width: 100%;
  background: #fff;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.btn-danger {
  width: auto;
  background: var(--color-danger);
  color: #fff;
  border: none;
  border-radius: var(--radius-button);
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-danger:hover { opacity: 0.9; }

.btn-auto { width: auto; }

.btn-sm {
  padding: 7px 14px;
  font-size: 12px;
}

/* 인풋 */
input[type="text"],
input[type="password"],
input[type="email"] {
  padding: 11px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  font-size: 13px;
  color: var(--color-text-primary);
  width: 100%;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

input::placeholder {
  color: var(--color-text-secondary);
}

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.file-upload-label {
  display: inline-block;
  text-align: center;
  margin-right: 8px;
}

.file-upload-label:hover { background: #FAFAFB; }

.visually-hidden-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.field-error {
  font-size: 11px;
  color: var(--color-danger);
  margin-top: 5px;
}

.align-right { text-align: right; }


/* ══════════════════════════════════════════════
   로그인 / 회원가입 (index.html, signup.html)
   ══════════════════════════════════════════════ */

.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--color-surface);
  border-radius: var(--radius-login-card);
  padding: 40px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 28px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.login-footer {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.login-footer a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: none;
  margin-left: 4px;
}


/* ══════════════════════════════════════════════
   홈 (home.html)
   ══════════════════════════════════════════════ */

.home-grid {
  display: grid;
  grid-template-columns: 62% 1fr;
  gap: 20px;
  align-items: start;
}

.card-label { font-size: 12px; color: var(--color-text-secondary); margin-bottom: 6px; }
.card-value-large { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.card-value { font-size: 14px; font-weight: 600; }
.profit-loss { font-size: 13px; color: var(--color-text-secondary); }
.text-up { color: var(--color-up); font-weight: 600; }
.text-down { color: var(--color-down); font-weight: 600; }
.divider { border: none; border-top: 1px solid var(--color-border); margin: 14px 0; }
.stat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.btn-income {
  width: auto;
  padding: 10px 18px;
  font-size: 13px;
}

.btn-income:disabled {
  background: #F0F0F3;
  color: #9B9BA3;
  cursor: not-allowed;
}

.btn-link {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-button);
  padding: 9px 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 16px;
}

.table-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  padding: 8px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.holding-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  align-items: center;
  padding: 12px 0;
}

.holding-info { display: flex; align-items: center; gap: 10px; }
.holding-logo {
  width: 32px; height: 32px;
  border-radius: 6px;
  background-color: var(--color-border);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}
.holding-name { font-size: 13px; font-weight: 600; }
.holding-desc { font-size: 10px; color: var(--color-text-secondary); }
.holding-value { font-size: 13px; font-weight: 600; }
.holding-return { font-size: 12px; font-weight: 600; }

.news-item { padding: 11px 0; border-top: 1px solid var(--color-border); }
.news-item:first-child { border-top: none; }
.news-title { font-size: 12px; margin-bottom: 4px; line-height: 1.5; }
.news-meta { display: flex; justify-content: space-between; font-size: 10px; color: var(--color-text-secondary); }
.news-meta a { color: var(--color-accent); font-weight: 600; text-decoration: none; }


/* ══════════════════════════════════════════════
   최근 거래 내역 (history.html)
   ══════════════════════════════════════════════ */

.history-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.history-table-header {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.history-row {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.history-row:last-child { border-bottom: none; }
.history-date { font-size: 12px; color: var(--color-text-secondary); }
.history-content { display: flex; align-items: center; gap: 8px; }

.trade-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 5px;
}

.trade-tag.buy { background: #FFE9EA; color: var(--color-up); }
.trade-tag.sell { background: #EEF0FF; color: var(--color-down); }

.history-stock-name { font-size: 13px; }
.history-quantity, .history-amount { font-size: 13px; font-weight: 600; }


/* ══════════════════════════════════════════════
   주식 거래 - 종목 목록 (trading.html)
   ══════════════════════════════════════════════ */

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 280px;
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
}

.search-box input {
  flex: 1;
  border: none;
  padding: 0;
}

.search-box input:focus { outline: none; border: none; }

.search-icon { color: var(--color-text-secondary); font-size: 14px; }

.stock-list-card { padding: 0; overflow: hidden; }

.stock-table-header {
  padding: 12px 24px;
  border-bottom: 1px solid var(--color-border);
  background: #FAFAFB;
  margin: 0;
}

.stock-row {
  display: grid;
  grid-template-columns: 2.4fr 1fr 1fr;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.15s;
}

.stock-row:last-child { border-bottom: none; }
.stock-row:hover { background: #FAFAFB; }

.stock-info { display: flex; align-items: center; gap: 12px; min-width: 0; }

.stock-logo {
  width: 36px; height: 36px;
  background: var(--color-border) center / cover no-repeat;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--color-text-secondary);
}

.stock-name {
  font-size: 14px; font-weight: 600; color: var(--color-text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.stock-desc {
  font-size: 11px; color: var(--color-text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.stock-price { font-size: 14px; font-weight: 600; color: var(--color-text-primary); }
.stock-change { font-size: 13px; font-weight: 600; }
.stock-change.up { color: var(--color-up); }
.stock-change.down { color: var(--color-down); }


/* ══════════════════════════════════════════════
   종목 상세 (stock-detail.html)
   ══════════════════════════════════════════════ */

.detail-grid {
  display: grid;
  grid-template-columns: 58% 1fr;
  gap: 18px;
  align-items: start;
}

.stock-header { display: flex; align-items: center; gap: 16px; }

.stock-logo-lg {
  width: 48px; height: 48px;
  background: var(--color-border) center / cover no-repeat;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 600; color: var(--color-text-secondary);
}

.stock-header-info { flex: 1; }
.stock-name-lg { font-size: 15px; font-weight: 700; margin-bottom: 6px; }

.desc-badge {
  display: inline-block;
  background: #EEF0FF;
  color: var(--color-accent);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
}

.stock-price-info { text-align: right; }
.price-value { font-size: 16px; font-weight: 700; }
.price-change { font-size: 12px; font-weight: 600; }
.price-change.up { color: var(--color-up); }
.price-change.down { color: var(--color-down); }

.chart-placeholder {
  height: 260px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-secondary);
  font-size: 13px;
}

.chart-ohlc-stats { margin-bottom: 14px; }

.news-item-link {
  display: block;
  padding: 9px 0;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-primary);
  text-decoration: none;
}

.news-item-link:first-child { border-top: none; }
.news-item-link:hover { color: var(--color-accent); }
.news-item-day { font-size: 11px; color: var(--color-text-secondary); margin-left: 6px; }

.holding-card { border-color: var(--color-accent); }

.holding-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.stat-value { font-size: 13px; font-weight: 600; }

.trade-toggle { display: flex; gap: 10px; margin-bottom: 18px; }

.trade-toggle-btn {
  flex: 1;
  padding: 11px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  background: #fff;
  cursor: pointer;
}

.trade-toggle-btn.active {
  background: #EEF0FF;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.quantity-shortcuts { display: flex; gap: 8px; margin-bottom: 18px; }

.qty-shortcut-btn {
  flex: 1;
  padding: 9px 0;
  font-size: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  background: #fff;
  cursor: pointer;
}

.qty-shortcut-btn:hover { border-color: var(--color-accent); }

.quantity-stepper { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }

.stepper-btn {
  width: 32px; height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  background: #fff;
  font-size: 14px;
  cursor: pointer;
}

.stepper-value {
  flex: 1;
  text-align: center;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  font-size: 13px;
}

.trade-amount-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}


/* ══════════════════════════════════════════════
   소셜 (social.html)
   ══════════════════════════════════════════════ */

.social-grid {
  display: grid;
  grid-template-columns: 30% 1fr 1fr;
  gap: 18px;
  align-items: start;
}

.social-left { display: flex; flex-direction: column; gap: 16px; }

.card-count { font-size: 11px; color: var(--color-text-secondary); }

.friend-add-row { display: flex; gap: 8px; }
.friend-add-row input { flex: 1; }

.friend-add-row .btn-primary {
  width: auto;
  padding: 10px 20px;
  white-space: nowrap;
}

.friend-delete-btn {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 18px;
  line-height: 1;
  width: 24px;
  height: 24px;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.friend-delete-btn:hover {
  color: var(--color-danger);
}

.highlight-card { background: #EEF0FF; border-color: var(--color-accent); }
.request-text { font-size: 13px; margin-bottom: 12px; }
.request-actions { display: flex; gap: 8px; }

.friend-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 4px;
  border-top: 1px solid var(--color-border);
}

.friend-row:first-child { border-top: none; }

.avatar-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  background-color: #EEF0FF;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.friend-name { font-size: 13px; flex: 1; }

.ranking-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 8px;
  border-radius: var(--radius-button);
}

.ranking-row.me { background: #EEF0FF; border: 1px solid var(--color-accent); }

.rank-number {
  font-size: 13px; font-weight: 600; color: var(--color-text-secondary);
  width: 16px; text-align: center;
}

.ranking-row .avatar-circle { width: 36px; height: 36px; }
.ranking-row.me .avatar-circle { background-color: var(--color-accent); }

.ranking-name { flex: 1; font-size: 13px; }
.ranking-name.me { color: var(--color-accent); font-weight: 700; }

.ranking-pct { font-size: 13px; font-weight: 600; }
.ranking-pct.up { color: var(--color-up); }
.ranking-pct.down { color: var(--color-down); }


/* ══════════════════════════════════════════════
   설정 (settings.html)
   ══════════════════════════════════════════════ */

.settings-container { max-width: 720px; }

.profile-card { display: flex; align-items: center; gap: 18px; }

.profile-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.profile-name { font-size: 14px; font-weight: 600; margin-bottom: 3px; }
.profile-handle { font-size: 12px; color: var(--color-text-secondary); }

.profile-logout-btn { margin-left: auto; }

.field-group { margin-bottom: 16px; }

.danger-card { background: #FFF5F4; border-color: #FFD5CE; }
.danger-title { color: #C23B2B; }
.danger-desc { color: #8A5147; margin-bottom: 16px; display: block; }


/* ══════════════════════════════════════════════
   퀴즈 모달 (quiz.js에서 동적으로 생성)
   ══════════════════════════════════════════════ */

.quiz-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.quiz-modal {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.quiz-heading { font-size: 12px; color: var(--color-accent); font-weight: 600; margin-bottom: 8px; }
.quiz-question { font-size: 17px; font-weight: 700; margin-bottom: 20px; line-height: 1.5; }
.quiz-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }

.quiz-option-btn {
  text-align: left;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  cursor: pointer;
}

.quiz-option-btn:hover:not(:disabled) { border-color: var(--color-accent); }
.quiz-option-btn.selected { border-color: var(--color-accent); background: #EEF0FF; font-weight: 600; }
.quiz-option-btn.correct { border-color: #1FAA59; background: #E9FBF0; font-weight: 600; }
.quiz-option-btn.wrong { border-color: var(--color-danger); background: #FFF0EE; }
.quiz-option-btn:disabled { cursor: default; }

.quiz-feedback { font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.quiz-feedback.correct { color: #1FAA59; }
.quiz-feedback.wrong { color: var(--color-danger); }

.quiz-actions { display: flex; gap: 10px; }
.quiz-actions button { flex: 1; }
.quiz-close-btn { margin-top: 8px; }

/* ══════════════════════════════════════════════
   내비게이션 바 + 알림 드롭다운
   ══════════════════════════════════════════════ */

.navbar {
  height: 64px;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3%;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 28px;
}

.navbar-logo {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 15px;
  white-space: nowrap;
}

.navbar-tab {
  color: var(--color-text-secondary);
  font-weight: 400;
  text-decoration: none;
  padding-bottom: 4px;
  font-size: 13px;
}

.navbar-tab.active {
  color: var(--color-text-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-accent);
}

.navbar-right {
  position: relative;
}

.notification-bell {
  position: relative;
  font-size: 17px;
  cursor: pointer;
  line-height: 1;
}

.notification-badge {
  position: absolute;
  top: -5px;
  right: -7px;
  background: var(--color-up);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 15px;
  height: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 2px;
}

.notification-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 320px;
  max-height: 400px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  z-index: 100;
}

.notification-dropdown-title {
  font-size: 13px;
  font-weight: 600;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
}

.notification-item {
  display: flex;
  gap: 10px;
  padding: 12px 18px;
  border-top: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text-primary);
}

.notification-item:first-of-type {
  border-top: none;
}

.notification-item:hover {
  background: #FAFAFB;
}

.notification-icon {
  font-size: 15px;
  flex-shrink: 0;
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-title {
  font-size: 12px;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.notification-time {
  font-size: 10px;
  color: var(--color-text-secondary);
}

.notification-empty {
  padding: 24px 18px;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ── 알림 목록 (수정본 — 기존 .notification-item, .notification-item:hover 규칙을 이걸로 교체) ── */

.notification-item {
  display: flex;
  align-items: center;
  gap: 4px;
  border-top: 1px solid var(--color-border);
}

.notification-item:first-of-type {
  border-top: none;
}

.notification-item:hover {
  background: #FAFAFB;
}

.notification-item-link {
  flex: 1;
  display: flex;
  gap: 10px;
  padding: 12px 8px 12px 18px;
  text-decoration: none;
  color: var(--color-text-primary);
  min-width: 0;
}

.notification-delete-btn {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1;
  padding: 8px 14px 8px 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.notification-delete-btn:hover {
  color: var(--color-danger);
}


/* ── settings.html 중복확인 버튼 추가분 ── */

.field-with-button {
  display: flex;
  gap: 8px;
}

.field-with-button input {
  flex: 1;
}

.field-with-button .btn-auto {
  white-space: nowrap;
}

.field-message {
  font-size: 11px;
  margin-top: 5px;
}