/* ==========================================================================
   [GW App Gallery — Light Theme Design System]
   ========================================================================== */

:root {
  --bg-base: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f8fafc;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.2);

  --accent-pink: #d946ef;
  --accent-cyan: #0891b2;
  --accent-gold: #d97706;

  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #9ca3af;

  --card-shadow: 0 2px 4px rgba(0,0,0,0.04), 0 8px 28px -6px rgba(0,0,0,0.10);
  --card-shadow-hover: 0 4px 8px rgba(0,0,0,0.04), 0 20px 48px -8px rgba(99,102,241,0.18);
  --float-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 6px 20px -4px rgba(0,0,0,0.09);
  --neon-shadow: 0 0 20px rgba(99, 102, 241, 0.1);

  --font-title: 'Outfit', 'Noto Sans KR', sans-serif;
  --font-body: 'Noto Sans KR', sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Base Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background-color: #e9e2d0;
  background-image:
    /* 종이 결 미세 텍스처 */
    repeating-linear-gradient(0deg, rgba(0,0,0,0.012) 0px, rgba(0,0,0,0.012) 1px, transparent 1px, transparent 28px),
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(255,255,255,0.5) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 110%, rgba(0,0,0,0.03) 0%, transparent 60%);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 왼쪽 스프링 노트 바인딩 */
body::before {
  content: '';
  position: fixed;
  top: 0; bottom: 0; left: 0;
  width: 42px;
  z-index: 60;
  background-color: #ded6c1;
  background-image: repeating-linear-gradient(
    -24deg,
    #9b9ba3 0px, #ececf2 3px, #7f7f88 7px,
    transparent 7px, transparent 13px,
    rgba(0,0,0,0.18) 13px, rgba(0,0,0,0.18) 14px,
    transparent 14px, transparent 27px
  );
  border-right: 1px solid rgba(0,0,0,0.12);
  box-shadow: inset -7px 0 12px -7px rgba(0,0,0,0.35), 2px 0 5px rgba(0,0,0,0.08);
  pointer-events: none;
}

/* ==========================================================================
   Glow Orbs (very subtle in light mode)
   ========================================================================== */

.glow-orb {
  position: fixed;
  width: 45vw;
  height: 45vw;
  border-radius: 50%;
  filter: blur(160px);
  opacity: 0.06;
  z-index: -1;
  pointer-events: none;
}
.orb-1, .orb-2, .orb-3 { display: none; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 10px var(--primary-glow);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.btn-secondary:hover {
  background: var(--bg-base);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-text {
  background: transparent;
  color: var(--text-muted);
  padding: 8px;
}
.btn-text:hover { color: var(--text-primary); background: rgba(0,0,0,0.04); }

.btn-lg { padding: 12px 26px; font-size: 1rem; font-weight: 600; border-radius: var(--radius-md); }

/* 좋아요 활성 상태 */
#like-app-btn.liked { background: #fef2f2; border-color: #fca5a5; color: #ef4444; }
#like-app-btn.liked i { color: #ef4444; }

.btn-launch {
  background: linear-gradient(135deg, #f97316, #ef4444);
  color: #fff;
  box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
}
.btn-launch:hover {
  background: linear-gradient(135deg, #ea6c0a, #dc2626);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.45);
}
.btn-launch:active { transform: translateY(0); }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

.required { color: #ef4444; margin-left: 2px; }

/* ==========================================================================
   Header
   ========================================================================== */

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid rgba(99,102,241,0.1);
  box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 2px 16px rgba(0,0,0,0.07);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo-mark {
  width: 48px;
  height: 48px;
  background: #4f8ef7;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 10px rgba(79, 142, 247, 0.35);
  flex-shrink: 0;
}
.logo-mark-icon {
  width: 24px; height: 24px; color: #fff;
  transform: rotate(-45deg);
}

.logo-group { display: flex; flex-direction: column; gap: 3px; }

.logo-title-row { display: flex; align-items: center; gap: 8px; }

.logo-maker-badge {
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, #f97316, #ef4444);
  color: #fff;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.logo-tagline {
  font-size: 0.67rem;
  font-weight: 600;
  color: #5865a8;
  letter-spacing: 0.02em;
  line-height: 1;
}

.nav-menu { display: flex; align-items: center; gap: 12px; }

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-base);
  padding: 4px 6px 4px 14px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
}
.user-name { font-size: 0.88rem; font-weight: 600; color: var(--text-primary); }

/* ==========================================================================
   Filter & Control Section
   ========================================================================== */

.control-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-bar-wrapper { position: relative; width: 100%; }

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

#search-input {
  width: 100%;
  background: #fff;
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: var(--radius-md);
  padding: 15px 18px 15px 52px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.98rem;
  outline: none;
  box-shadow: var(--float-shadow);
  transition: var(--transition-smooth);
}
#search-input::placeholder { color: var(--text-muted); }
#search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1), var(--float-shadow);
  transform: translateY(-1px);
}

.filters-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.filters-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* 작성자 구분 필터 */
.role-filter-bar {
  display: flex;
  gap: 6px;
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(99,102,241,0.1);
  padding: 4px;
  border-radius: 14px;
  box-shadow: var(--float-shadow);
}
.role-filter-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.role-filter-btn:hover { color: var(--text-primary); background: var(--bg-base); }
.role-filter-btn.active {
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.category-tabs {
  display: flex;
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(99,102,241,0.1);
  padding: 4px;
  border-radius: 14px;
  box-shadow: var(--float-shadow);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.88rem;
  padding: 7px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}
.tab-btn:hover { color: var(--text-primary); background: var(--bg-base); }
.tab-btn.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 2px 8px var(--primary-glow); }

.filters-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 게시판 버튼 */
.btn-board {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 8px 18px;
  border-radius: 12px;
  box-shadow: var(--float-shadow);
  white-space: nowrap;
}
.btn-board-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}
.btn-board:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* ================================================================
   게시판 모달
   ================================================================ */
.board-modal-content {
  max-width: 780px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.board-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}
.board-title {
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 3px;
}
.board-title i { width: 20px; height: 20px; color: var(--primary); }
.board-subtitle { font-size: 0.8rem; color: var(--text-muted); }
.write-btn-hidden { display: none !important; }

.board-cats {
  display: flex;
  gap: 4px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  flex-shrink: 0;
  background: var(--bg-base);
}
.board-cats::-webkit-scrollbar { display: none; }
.board-cat {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 5px 13px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.board-cat:hover { background: #fff; color: var(--text-primary); }
.board-cat.active { background: var(--primary); color: #fff; font-weight: 700; box-shadow: 0 2px 8px var(--primary-glow); }

.board-view { padding: 0 28px 24px; overflow-y: auto; flex: 1; }
.board-view-hidden { display: none !important; }

.posts-list { display: flex; flex-direction: column; padding-top: 8px; }
.post-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 6px;
}
.post-item:hover { border-color: rgba(99,102,241,0.25); box-shadow: 0 4px 16px rgba(99,102,241,0.08); transform: translateX(3px); }
.post-cat-badge { font-size: 0.72rem; font-weight: 700; padding: 3px 9px; border-radius: 20px; white-space: nowrap; }
.cat-notice    { background: rgba(99,102,241,0.1); color: #4338ca; }
.cat-suggest   { background: rgba(245,158,11,0.1); color: #92400e; }
.cat-request   { background: rgba(8,145,178,0.1);  color: #0e7490; }
.cat-praise    { background: rgba(34,197,94,0.1);  color: #166534; }
.cat-complaint { background: rgba(239,68,68,0.1);  color: #991b1b; }
.cat-etc       { background: rgba(107,114,128,0.1);color: #374151; }

.post-item-title { font-size: 0.92rem; font-weight: 600; color: var(--text-primary); }
.post-item-meta  { font-size: 0.75rem; color: var(--text-muted); text-align: right; line-height: 1.5; }
.board-empty { text-align: center; color: var(--text-muted); padding: 48px 0; font-size: 0.9rem; }
.board-empty-hidden { display: none; }

.btn-back { background: none; border: none; display: flex; align-items: center; gap: 6px; color: var(--primary); font-size: 0.85rem; font-weight: 600; cursor: pointer; padding: 12px 0 16px; }
.btn-back i { width: 14px; height: 14px; }
.btn-back:hover { color: var(--primary-hover); }

.post-detail-header { border-bottom: 1px solid var(--border-color); padding-bottom: 14px; margin-bottom: 18px; }
.post-detail-cat { margin-bottom: 8px; }
.post-detail-title { font-family: var(--font-title); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; line-height: 1.4; }
.post-detail-meta { display: flex; align-items: center; gap: 14px; font-size: 0.8rem; color: var(--text-muted); flex-wrap: wrap; }
.post-detail-meta span { display: flex; align-items: center; gap: 4px; }
.post-detail-meta i { width: 12px; height: 12px; }
.post-detail-content { font-size: 0.92rem; color: var(--text-secondary); white-space: pre-wrap; word-break: break-word; line-height: 1.8; padding: 18px; background: var(--bg-base); border-radius: var(--radius-md); border: 1px solid var(--border-color); }
.post-detail-actions { display: flex; justify-content: flex-end; margin-top: 16px; }
.btn-delete-post { background: none; border: 1px solid #fca5a5; color: #dc2626; font-size: 0.82rem; font-weight: 600; padding: 7px 16px; border-radius: 8px; cursor: pointer; transition: var(--transition-fast); }
.btn-delete-post:hover { background: #fee2e2; }

.post-form { padding-top: 8px; }

/* 핀 고정 스타일 */
.post-pinned { background: rgba(99,102,241,0.04) !important; border-color: rgba(99,102,241,0.2) !important; }
.post-detail-cat-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.pinned-indicator { font-size: 0.75rem; font-weight: 700; color: var(--primary); background: rgba(99,102,241,0.1); padding: 2px 10px; border-radius: 20px; }

.btn-pin-post {
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}
.btn-pin-post:hover { background: rgba(99,102,241,0.15); }

/* 게시글 댓글 */
.post-comments-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}
.post-comments-title { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 14px; }
.post-comment-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.post-comment-loading, .post-comment-empty, .post-comment-login {
  font-size: 0.83rem; color: var(--text-muted); text-align: center; padding: 12px 0;
}
.post-comment-item {
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  position: relative;
}
.post-comment-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
  flex-wrap: wrap;
}
.post-comment-author { font-size: 0.82rem; font-weight: 700; color: var(--text-primary); }
.post-comment-author em { font-style: normal; font-weight: 400; color: var(--text-muted); font-size: 0.75rem; margin-left: 3px; }
.post-comment-date { font-size: 0.74rem; color: var(--text-muted); margin-left: auto; }
.post-comment-content { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; white-space: pre-wrap; word-break: break-word; }

.btn-del-pc {
  background: none; border: none; cursor: pointer; padding: 2px 4px;
  color: var(--text-muted); border-radius: 4px; display: flex; align-items: center;
  transition: var(--transition-fast);
}
.btn-del-pc i { width: 13px; height: 13px; }
.btn-del-pc:hover { color: #dc2626; background: #fee2e2; }

.post-comment-form {
  display: flex; gap: 8px; align-items: flex-end;
}
.post-comment-form textarea {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 9px 12px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  resize: none;
  outline: none;
  transition: var(--transition-fast);
}
.post-comment-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }

.board-load-more-wrap { text-align: center; padding: 12px 0 4px; }
.btn-load-more {
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 28px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--float-shadow);
}
.btn-load-more:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-load-more:disabled { opacity: 0.5; cursor: not-allowed; }

.sort-wrapper { position: relative; display: flex; align-items: center; }

.sort-select {
  appearance: none;
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(99,102,241,0.1);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 9px 36px 9px 16px;
  border-radius: 12px;
  outline: none;
  cursor: pointer;
  box-shadow: var(--float-shadow);
  transition: var(--transition-fast);
}
.sort-select:hover { border-color: rgba(99,102,241,0.2); color: var(--text-primary); }
.select-chevron { position: absolute; right: 12px; color: var(--text-muted); width: 16px; height: 16px; pointer-events: none; }

/* ==========================================================================
   Apps Grid
   ========================================================================== */

.showcase-section { max-width: 1200px; margin: 0 auto; padding: 0 24px 80px; min-height: 300px; }

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  width: 100%;
}

/* 무한 스크롤 */
#scroll-sentinel { height: 1px; }
.load-more-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 0 40px;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.load-more-spinner .spinner { width: 32px; height: 32px; margin-bottom: 0; }
.spinner-hidden { display: none; }

.loading-state, .empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
  color: var(--text-muted);
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(99,102,241,0.15);
  border-left-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin-bottom: 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-icon { width: 56px; height: 56px; color: var(--text-muted); margin-bottom: 14px; }
.empty-state h3 { color: var(--text-secondary); font-weight: 600; margin-bottom: 6px; }

/* App Card */
.app-card {
  background: #fff;
  border: 1px solid rgba(99,102,241,0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
}
/* 상단 하이라이트 선 */
.app-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(99,102,241,0.25), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.app-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(99,102,241,0.2);
}
.app-card:hover::after { opacity: 1; }

.card-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #f1f5f9;
}
.card-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}
.app-card:hover .card-image { transform: scale(1.03); }

/* 카테고리 기본 플레이스홀더 */
.card-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.card-placeholder-emoji { font-size: 2.8rem; line-height: 1; }
.card-placeholder-label { font-size: 0.85rem; font-weight: 700; letter-spacing: 0.03em; }

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.73rem;
  font-weight: 600;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.badge-education { background: rgba(99,102,241,0.12); color: #4338ca; border: 1px solid rgba(99,102,241,0.2); }
.badge-coding    { background: rgba(8,145,178,0.12);  color: #0e7490; border: 1px solid rgba(8,145,178,0.2); }
.badge-maker     { background: rgba(217,119,6,0.12);  color: #b45309; border: 1px solid rgba(217,119,6,0.2); }
.badge-etc       { background: rgba(217,70,239,0.12); color: #a21caf; border: 1px solid rgba(217,70,239,0.2); }

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(99,102,241,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-fast);
}
.app-card:hover .card-overlay { opacity: 1; }

.overlay-icon {
  width: 40px;
  height: 40px;
  color: #fff;
  background: var(--primary);
  border-radius: 50%;
  padding: 9px;
  transform: scale(0.85);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.app-card:hover .overlay-icon { transform: scale(1); }

.card-content { padding: 18px 20px; display: flex; flex-direction: column; flex-grow: 1; }

.card-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.6em;
  line-height: 1.3;
}

.card-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-author { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--text-muted); }
.card-author-icon { width: 13px; height: 13px; }
.card-stats { display: flex; align-items: center; gap: 10px; font-size: 0.78rem; color: var(--text-muted); }
.stat-item { display: flex; align-items: center; gap: 4px; }
.stat-item i { width: 13px; height: 13px; }

/* ==========================================================================
   Footer
   ========================================================================== */

.app-footer {
  border-top: 1px solid var(--border-color);
  background: #fff;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* Footer 왼쪽 정보 */
.footer-info { display: flex; flex-direction: column; gap: 4px; }
.footer-org {
  font-size: 0.88rem; font-weight: 700;
  color: var(--primary); margin: 0;
}
.footer-addr {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.78rem; color: var(--text-muted); margin: 0;
}
.footer-addr i { width: 13px; height: 13px; flex-shrink: 0; }
.footer-copy { font-size: 0.75rem; color: var(--text-muted); margin: 0; }

/* Footer 오른쪽 그룹 */
.footer-right { display: flex; align-items: center; gap: 16px; }

/* Footer QR 버튼 */
.footer-qr-btn {
  display: flex; align-items: center; gap: 6px;
  background: none; border: 1px solid var(--border-color);
  color: var(--text-muted); font-size: 0.82rem;
  padding: 5px 12px; border-radius: 20px; cursor: pointer;
  transition: var(--transition-fast);
}
.footer-qr-btn:hover { color: var(--primary); border-color: var(--primary); background: #f5f3ff; }
.footer-qr-btn i { width: 14px; height: 14px; }

/* QR 모달 */
.qr-modal-content {
  max-width: 320px; width: 90%;
  border-radius: var(--radius-lg);
  padding: 0; overflow: hidden;
}
.qr-modal-body { padding: 32px 28px 28px; text-align: center; }
.qr-modal-title {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px;
}
.qr-modal-title i { width: 20px; height: 20px; color: var(--primary); }
.qr-modal-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px; }
.qr-image-wrap {
  display: inline-block; padding: 12px;
  background: #fff; border-radius: 12px;
  box-shadow: 0 2px 16px rgba(99,102,241,0.12);
  border: 2px solid #e0e7ff; margin-bottom: 16px;
}
.qr-image { width: 200px; height: 200px; display: block; }
.qr-modal-url {
  font-size: 0.75rem; color: var(--primary);
  word-break: break-all; font-weight: 500;
}

/* DB Status */
.db-status { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--text-muted); }
.db-status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted);
  position: relative; flex-shrink: 0;
}
.db-status-dot.connected { background: #22c55e; }
.db-status-dot.connected::after {
  content: '';
  position: absolute; inset: -3px;
  border-radius: 50%;
  background: rgba(34,197,94,0.3);
  animation: dbPulse 1.8s ease-out infinite;
  will-change: transform, opacity;
}
.db-status-dot.error { background: #ef4444; }
@keyframes dbPulse {
  0%   { transform: scale(1);   opacity: 0.8; }
  70%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}
.db-status-text.connected { color: #16a34a; }
.db-status-text.error     { color: #dc2626; }

/* ==========================================================================
   Modal Core
   ========================================================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 16px;
}
.modal.active { opacity: 1; pointer-events: all; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px); /* must follow -webkit- prefix */
}

.modal-content {
  position: relative;
  background: #fff;
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: var(--radius-lg);
  width: 100%;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.8) inset,
    0 8px 16px rgba(0,0,0,0.06),
    0 32px 80px -12px rgba(0,0,0,0.22);
  transform: translateY(24px) scale(0.97);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
  overflow: hidden;
  max-height: calc(100vh - 32px);
}
.modal.active .modal-content { transform: translateY(0) scale(1); }

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 34px; height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition-fast);
  z-index: 10;
}
.modal-close:hover { background: #fee2e2; color: #dc2626; border-color: #fca5a5; }

/* ==========================================================================
   Auth Modal
   ========================================================================== */

.auth-modal-content { max-width: 420px; padding: 32px; }

.auth-tabs { display: flex; margin-bottom: 24px; border-bottom: 2px solid var(--border-color); }
.auth-tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 10px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
}
.auth-tab-btn:hover { color: var(--text-primary); }
.auth-tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.auth-form { display: flex; flex-direction: column; gap: 4px; }

/* Role Selector */
.role-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.role-option { display: flex; cursor: pointer; }
.role-option input[type="radio"] { display: none; }
.role-label {
  width: 100%;
  text-align: center;
  padding: 10px 0;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-base);
  transition: var(--transition-fast);
  cursor: pointer;
}
.role-option input[type="radio"]:checked + .role-label {
  border-color: var(--primary);
  background: rgba(99,102,241,0.07);
  color: var(--primary);
  font-weight: 700;
}

.teacher-notice {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 8px;
  padding: 9px 13px;
  font-size: 0.83rem;
  color: #92400e;
  margin-top: 8px;
}
.notice-icon { width: 14px; height: 14px; flex-shrink: 0; color: #d97706; }
.notice-hidden { display: none; }

/* Form Styles */
.form-group { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group textarea,
.form-group select {
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition-fast);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.form-row { display: flex; gap: 14px; }
.flex-1 { flex: 1; }

/* ==========================================================================
   Add App Modal
   ========================================================================== */

.form-modal-content { max-width: 660px; padding: 30px; overflow-y: auto; }
.form-modal-content h2 { font-family: var(--font-title); font-weight: 700; margin-bottom: 4px; color: var(--text-primary); }
.modal-lead { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 22px; }

/* 등록 방법 선택 */
.method-selector {
  display: flex; gap: 10px; flex-wrap: wrap;
}
.method-option {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  cursor: pointer; font-size: 0.9rem; font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
}
.method-option input[type="radio"] { display: none; }
.method-option:hover { border-color: var(--primary); color: var(--primary); background: #f5f3ff; }
.method-option-active { border-color: var(--primary); color: var(--primary); background: #eef2ff; }

.method-section { margin-top: 4px; }
.method-hidden { display: none !important; }

/* 소스코드 textarea */
.source-code-textarea {
  font-family: 'Cascadia Code', 'Fira Code', 'Courier New', monospace;
  font-size: 0.82rem; line-height: 1.6;
  background: #0f172a; color: #e2e8f0;
  border: 1px solid #334155; border-radius: var(--radius-sm);
  padding: 14px; resize: vertical;
}
.source-code-textarea::placeholder { color: #64748b; }

.form-divider {
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  margin: 24px 0 14px;
  padding-bottom: 6px;
  border-bottom: 2px solid rgba(99,102,241,0.12);
}

.file-upload-zone {
  border: 2px dashed var(--border-color);
  background: var(--bg-base);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
  min-height: 130px;
}
.file-upload-zone:hover, .file-upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(99,102,241,0.04);
}
.upload-icon { width: 28px; height: 28px; color: var(--text-muted); margin-bottom: 8px; transition: var(--transition-fast); }
.file-upload-zone:hover .upload-icon { color: var(--primary); transform: translateY(-2px); }
.upload-text { font-size: 0.88rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 3px; }
.upload-info { font-size: 0.75rem; color: var(--text-muted); }

.preview-container {
  position: absolute; inset: 10px;
  background: var(--bg-base);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.preview-container img { width: 100%; height: 100%; object-fit: cover; }

.btn-remove {
  position: absolute; top: 8px; right: 8px;
  background: rgba(239,68,68,0.9);
  color: #fff;
  border: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition-fast);
}
.btn-remove:hover { background: #dc2626; transform: scale(1.05); }

.file-selected-badge {
  display: flex; align-items: center; gap: 8px;
  background: rgba(8,145,178,0.08);
  border: 1px solid rgba(8,145,178,0.2);
  color: #0e7490;
  padding: 7px 12px; border-radius: 8px; font-size: 0.85rem;
}
.file-selected-badge i { color: var(--accent-cyan); }

.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* ==========================================================================
   App Detail Modal
   ========================================================================== */

.detail-modal-content { max-width: 960px; width: 92%; max-height: 90vh; }
.detail-container { display: grid; grid-template-columns: 1.5fr 1fr; height: 90vh; overflow: hidden; }

.detail-main {
  padding: 28px;
  overflow-y: auto;
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column; gap: 20px;
}

.detail-header-block { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.detail-header-top { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.detail-header-actions { display: flex; align-items: center; gap: 8px; }
.detail-author-btns { display: flex; gap: 6px; }
.edit-btn-hidden { display: none; }

/* 내 활동 모달 */
.activity-modal-content {
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.activity-header {
  padding: 22px 26px 14px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}
.activity-tabs {
  display: flex;
  gap: 4px;
  padding: 10px 26px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-base);
  flex-shrink: 0;
}
.activity-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
}
.activity-tab:hover { background: #fff; color: var(--text-primary); }
.activity-tab.active { background: var(--primary); color: #fff; font-weight: 700; }
.activity-view { padding: 16px 26px 24px; overflow-y: auto; flex: 1; }
.activity-view-hidden { display: none !important; }

.my-apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}
.my-app-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.my-app-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(99,102,241,0.12); border-color: rgba(99,102,241,0.2); }
.my-app-cover { width: 100%; aspect-ratio: 16/9; object-fit: contain; background: var(--bg-base); }
.my-app-info { padding: 10px 12px; }
.my-app-title { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.my-app-meta { font-size: 0.74rem; color: var(--text-muted); margin-top: 3px; }

/* 링크 복사 토스트 */
.copy-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: #1e293b;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: 30px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  z-index: 9999;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.toast-hidden { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(16px); }

.btn-danger {
  background: #fff;
  color: #dc2626;
  border: 1px solid #fca5a5;
}
.btn-danger:hover {
  background: #fee2e2;
  border-color: #f87171;
  transform: translateY(-1px);
}

.comment-card { position: relative; }
.btn-delete-comment {
  position: absolute;
  top: 10px; right: 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  opacity: 0;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
}
.btn-delete-comment i { width: 13px; height: 13px; }
.comment-card:hover .btn-delete-comment { opacity: 1; }
.btn-delete-comment:hover { color: #dc2626; background: #fee2e2; }

.category-badge {
  padding: 3px 10px; border-radius: 6px;
  font-size: 0.78rem; font-weight: 600;
  background: rgba(99,102,241,0.1); color: var(--primary);
}

.detail-title { font-family: var(--font-title); font-size: 1.65rem; font-weight: 700; color: var(--text-primary); line-height: 1.3; }

.detail-meta { display: flex; gap: 14px; font-size: 0.82rem; color: var(--text-muted); flex-wrap: wrap; }
.meta-item { display: flex; align-items: center; gap: 5px; }
.meta-item i { width: 13px; height: 13px; }

.detail-visual {
  width: 100%; border-radius: var(--radius-sm);
  overflow: hidden; background: var(--bg-base);
  border: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center;
  max-height: 160px;
}
.detail-cover { width: 100%; max-height: 160px; object-fit: contain; }

.detail-description {
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
}
.detail-description h3 { font-size: 0.92rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.detail-description #detail-desc-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.75;
}

/* 작품 본문 텍스트 (문학작품) */
.detail-body #detail-body-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.85;
}

/* 작품 이미지 갤러리 (예술작품) — 상세 화면 */
.detail-gallery-wrap h3 { font-size: 0.92rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.detail-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.detail-gallery-item {
  display: block;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 1 / 1;
  background: var(--bg-base);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.detail-gallery-item:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.12); }
.detail-gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 갤러리 업로드 미리보기 — 등록 폼 */
.gallery-previews {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.gallery-previews:empty { display: none; }
.gallery-preview-cell {
  position: relative;
  width: 84px; height: 84px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.gallery-preview-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-preview-remove {
  position: absolute; top: 3px; right: 3px;
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  border: none; border-radius: 50%;
  background: rgba(0,0,0,0.6); color: #fff;
  cursor: pointer; padding: 0;
}
.gallery-preview-remove:hover { background: rgba(220,38,38,0.9); }
.gallery-preview-remove i { width: 13px; height: 13px; }

.detail-actions { display: flex; gap: 12px; }
.detail-actions .btn { flex: 1; }

/* Iframe Runner */
.iframe-runner {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f8fafc;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.iframe-header {
  background: var(--bg-base);
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-color);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; font-weight: 600; color: var(--text-secondary);
}
.iframe-wrapper { width: 100%; aspect-ratio: 4/3; position: relative; }
#app-iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; background: #fff; }

.iframe-runner.fullscreen {
  position: fixed; inset: 0; z-index: 2000; border-radius: 0;
}
.iframe-runner.fullscreen .iframe-wrapper { height: calc(100vh - 40px); aspect-ratio: auto; }

/* Detail Sidebar */
.detail-sidebar {
  padding: 28px;
  display: flex; flex-direction: column;
  height: 100%;
  background: var(--bg-base);
}
.detail-sidebar h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 14px; }

.comments-list {
  flex-grow: 1; overflow-y: auto; margin-bottom: 16px;
  display: flex; flex-direction: column; gap: 12px; padding-right: 2px;
}
.comments-list::-webkit-scrollbar { width: 4px; }
.comments-list::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 4px; }

.comment-card {
  background: #fff;
  border: 1px solid rgba(99,102,241,0.08);
  padding: 12px 14px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
  transition: box-shadow 0.2s ease;
}
.comment-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.comment-header { display: flex; justify-content: space-between; font-size: 0.78rem; margin-bottom: 5px; }
.comment-author { font-weight: 700; color: var(--text-primary); }
.comment-date { color: var(--text-muted); }
.comment-content { font-size: 0.85rem; color: var(--text-secondary); word-break: break-all; line-height: 1.45; }

.comment-input-area { border-top: 1px solid var(--border-color); padding-top: 14px; }
.comment-warning {
  background: #fff; border: 1px solid var(--border-color);
  padding: 10px; border-radius: 8px;
  font-size: 0.83rem; color: var(--text-muted); text-align: center;
}
.btn-link { background: transparent; border: none; color: var(--primary); font-weight: 600; cursor: pointer; text-decoration: underline; padding: 0; }
.btn-link:hover { color: var(--primary-hover); }

#comment-form { display: flex; flex-direction: column; gap: 8px; }
#comment-form textarea { width: 100%; resize: none; font-size: 0.85rem; }

/* ==========================================================================
   Utility Classes (initial hidden states)
   ========================================================================== */

.btn-hidden           { display: none; }
.user-profile-hidden  { display: none; }
.empty-state-hidden   { display: none; }
.signup-form-hidden   { display: none; }
.preview-hidden       { display: none; }
.file-input-hidden    { display: none; }
.file-badge-hidden    { display: none; }
.iframe-runner-hidden { display: none; }
.comment-form-hidden  { display: none; }

/* ==========================================================================
   Button Spinner
   ========================================================================== */

.btn-spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.35);
  border-left-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Select Option */
select option { background: #fff; color: var(--text-primary); }

/* Select Wrapper */
.select-wrapper { position: relative; display: flex; align-items: center; width: 100%; }
.select-wrapper select { width: 100%; appearance: none; padding-right: 36px !important; }
.select-wrapper i { position: absolute; right: 12px; color: var(--text-muted); width: 16px; height: 16px; pointer-events: none; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .detail-container { grid-template-columns: 1fr; height: auto; max-height: 85vh; overflow-y: auto; }
  .detail-main { border-right: none; border-bottom: 1px solid var(--border-color); }
  .detail-sidebar { height: auto; padding-bottom: 32px; background: #fff; }
  .comments-list { max-height: 220px; }
}

@media (max-width: 600px) {
  /* 헤더 */
  .header-container { padding: 10px 14px; }
  .logo { gap: 8px; }
  .logo-mark { width: 36px; height: 36px; border-radius: 10px; }
  .logo-mark-icon { width: 18px; height: 18px; }
  .logo-text { font-size: 1.05rem; }
  .logo-maker-badge { display: none; }         /* 아주 좁은 화면엔 숨김 */
  .logo-tagline { font-size: 0.6rem; }
  .user-profile { padding: 4px; }
  .user-name { display: none; }

  /* 네비 버튼 — 아이콘만 표시 (좋아요 카운트 등 모달 내부 버튼은 제외) */
  .nav-menu .btn > i ~ span { display: none; }
  .nav-menu .btn i { margin: 0; }
  /* 앱 등록하기 버튼 — 모바일에서 아이콘 크기에 맞춤 */
  .nav-menu .btn-primary { padding: 8px 10px; font-size: 0.85rem; }

  /* 필터 영역 세로 스택 — 화면 너비에 가둠(가로 밀림 방지) */
  .filters-container { flex-direction: column; align-items: stretch; gap: 8px; width: 100%; max-width: 100%; }
  .filters-left  { flex-direction: column; align-items: stretch; gap: 8px; width: 100%; max-width: 100%; }
  .filters-right { flex-direction: column; align-items: flex-start; gap: 8px; width: 100%; max-width: 100%; }
  .btn-board { text-align: left; }

  /* 카테고리 탭: 한 줄로 뻗지 않고 줄바꿈 → 화면 밖으로 안 나감 */
  .category-tabs { flex-wrap: wrap; width: 100%; max-width: 100%; padding: 4px; }
  .tab-btn { padding: 6px 12px; font-size: 0.8rem; }

  /* 역할 필터 왼쪽 정렬 + 줄바꿈 */
  .role-filter-bar { justify-content: flex-start; flex-wrap: wrap; }

  /* 정렬 셀렉트 — 왼쪽 정렬, 너비 자동 */
  .sort-wrapper { width: auto; }
  .sort-select { width: auto; min-width: 130px; }

  /* 앱 카드 1열 */
  .apps-grid { grid-template-columns: 1fr; }

  /* 폼 */
  .form-row { flex-direction: column; gap: 0; }

  /* 게시판 모달 */
  .board-modal-content { max-height: 95vh; border-radius: 16px; }
  .board-header {
    flex-direction: column;
    gap: 10px;
    padding: 16px 18px 12px;
  }
  .board-header .btn { width: 100%; justify-content: center; }
  .board-view { padding: 0 16px 20px; }
  .board-cats { padding: 8px 16px; }

  /* 게시글 목록 — 2컬럼 (뱃지+제목 / 메타) */
  .post-item {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 6px;
  }
  .post-item .post-cat-badge { grid-column: 1; grid-row: 1; width: fit-content; }
  .post-item .post-item-title { grid-column: 1; grid-row: 2; font-size: 0.85rem; }
  .post-item .post-item-meta  { grid-column: 2; grid-row: 1 / 3; font-size: 0.7rem; }

  /* 앱 상세 모달 */
  .detail-actions { flex-direction: column; gap: 8px; }
  .detail-actions .btn { width: 100%; }
  .detail-meta { flex-wrap: wrap; gap: 8px; }
}

/* ==========================================================================
   📒 노트/포스트잇 테마 (Notebook & Post-it Theme)
   메인 갤러리 화면을 종이 노트 + 색깔 포스트잇 느낌으로 변환
   ========================================================================== */

/* 본문 컨텐츠가 왼쪽 바인딩에 가리지 않도록 여백 */
.app-header .header-container,
.control-section,
.showcase-section,
.guestbook-view,
.app-footer .footer-container {
  padding-left: 58px;
}
.showcase-section { max-width: 1200px; margin: 0 auto; padding-right: 24px; }

/* ---- 헤더: 종이 위 테이프 붙은 로고 ---- */
.app-header {
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  border-bottom: none;
  box-shadow: none;
}
.app-header .header-container {
  padding-top: 20px;
  padding-bottom: 8px;
}
/* 로고 + 게시판 버튼 묶음 (좌측) */
.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.header-left .btn-board { align-self: center; }
/* 게시판·로그인 살짝 아래로 */
.header-left .btn-board,
.app-header .nav-menu { margin-top: 16px; }

/* 검색창 위 여백 축소 */
.control-section { padding-top: 6px; }
.logo {
  position: relative;
  background: #fdf3a8;
  padding: 12px 20px 12px 14px;
  border-radius: 6px;
  box-shadow: 2px 4px 10px rgba(0,0,0,0.14);
  transform: rotate(-1.2deg);
  transition: transform 0.25s ease;
}
.logo:hover { transform: rotate(0deg) scale(1.01); }
/* 로고 위 테이프 */
.logo::before {
  content: '';
  position: absolute;
  top: -10px; left: 50%;
  width: 64px; height: 22px;
  transform: translateX(-50%) rotate(-3deg);
  background: rgba(255,255,255,0.55);
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.logo-mark {
  background: #ef5b4c;
  border-radius: 12px;
  box-shadow: 0 3px 8px rgba(239,91,76,0.35);
}
.logo-mark-icon { transform: rotate(0deg); }
.logo-tagline { color: #8a7b3e; }

/* 헤더 네비 버튼 — 작은 종이 카드 느낌 */
.nav-menu .btn-secondary,
.btn-board,
.footer-qr-btn {
  background: #fffdf5;
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: 1px 2px 5px rgba(0,0,0,0.1);
  border-radius: 8px;
}
.nav-menu .btn-primary {
  border-radius: 8px;
  box-shadow: 1px 3px 8px rgba(99,102,241,0.35);
}

/* ---- 검색바: 종이 위 입력 카드 ---- */
#search-input {
  background: #fffdf5;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 12px;
  box-shadow: 1px 3px 8px rgba(0,0,0,0.1);
}

/* ---- 필터 탭 / 역할 / 정렬: 종이 톤 ---- */
.category-tabs,
.role-filter-bar,
.sort-select {
  background: #fffdf5;
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: 1px 2px 6px rgba(0,0,0,0.08);
}

/* ==========================================================================
   포스트잇 카드
   ========================================================================== */
.apps-grid {
  gap: 30px 26px;
  padding-top: 8px;
}

.app-card {
  background: #fdf3a8;             /* 기본 노랑 (nth-child로 색 순환) */
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 4px;
  box-shadow: 3px 5px 14px rgba(0,0,0,0.16);
  transform: rotate(-1deg);
  overflow: visible;
  transition: transform 0.28s cubic-bezier(0.16,1,0.3,1), box-shadow 0.28s ease;
}
/* 카드 위 테이프 */
.app-card::before {
  content: '';
  position: absolute;
  top: -11px; left: 50%;
  width: 88px; height: 26px;
  transform: translateX(-50%) rotate(-4deg);
  background: rgba(255,255,255,0.5);
  border: 1px solid rgba(0,0,0,0.04);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  z-index: 3;
}
/* 기존 상단 하이라이트 선 제거 */
.app-card::after { display: none; }
.app-card:hover {
  transform: rotate(0deg) translateY(-6px) scale(1.02);
  box-shadow: 5px 10px 26px rgba(0,0,0,0.24);
  border-color: rgba(0,0,0,0.1);
}

/* 색 순환 (노랑 / 초록 / 분홍 / 파랑) + 기울기 교차 */
.apps-grid .app-card:nth-child(4n+1) { background: #fdf3a8; transform: rotate(-1.1deg); }
.apps-grid .app-card:nth-child(4n+2) { background: #cdebd6; transform: rotate(0.9deg); }
.apps-grid .app-card:nth-child(4n+3) { background: #fad7cb; transform: rotate(-0.7deg); }
.apps-grid .app-card:nth-child(4n+4) { background: #d2e6f8; transform: rotate(1.2deg); }
.apps-grid .app-card:nth-child(4n+1):hover,
.apps-grid .app-card:nth-child(4n+2):hover,
.apps-grid .app-card:nth-child(4n+3):hover,
.apps-grid .app-card:nth-child(4n+4):hover {
  transform: rotate(0deg) translateY(-6px) scale(1.02);
}

/* 표지 이미지 — 포스트잇 위에 붙은 사진 프레임 */
.card-image-wrapper {
  margin: 14px 14px 0;
  width: auto;
  border-radius: 3px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
  aspect-ratio: 16 / 10;
}
.card-placeholder { border-radius: 3px; background: rgba(255,255,255,0.45) !important; }
.card-placeholder-emoji { font-size: 2.6rem; }

/* 카테고리 배지 (상태 배지 자리) */
.card-badge {
  top: 10px; left: 10px;
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.06);
  color: #444;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* 본문 텍스트 — 파스텔 위 가독성 ↑ */
.card-content { padding: 14px 18px 16px; }
.card-title { color: #2b2b2b; }
.card-desc { color: rgba(0,0,0,0.55); }
.card-footer {
  border-top: 1px dashed rgba(0,0,0,0.18);
  padding-top: 10px;
}
.card-author { color: rgba(0,0,0,0.6); }
.card-stats { color: rgba(0,0,0,0.55); }

/* 빈 화면 / 로딩 — 종이톤 */
.loading-state, .empty-state { color: rgba(0,0,0,0.45); }

/* ---- 푸터: 종이 톤 ---- */
.app-footer {
  background: rgba(255,255,255,0.35);
  border-top: 1px solid rgba(0,0,0,0.1);
}

/* 모바일 — 바인딩 얇게, 여백 축소 */
@media (max-width: 768px) {
  body::before { width: 22px; }
  .app-header .header-container,
  .control-section,
  .showcase-section,
  .guestbook-view,
  .app-footer .footer-container { padding-left: 30px; }
  .app-card, .apps-grid .app-card { transform: rotate(0deg); }
}

/* ==========================================================================
   📝 방명록 (포스트잇 노트)
   ========================================================================== */
/* 인라인 방명록 화면 (모달 아님) */
.guestbook-view {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px 40px 58px;
}
.gb-section-hidden { display: none; }
.guestbook-panel {
  width: 100%;
  padding: 24px 0 32px;
  background: transparent;   /* 페이지 배경과 동일 — 경계 없음 */
  box-shadow: none;
}
/* 뒤로가기 버튼 */
.gb-back {
  display: inline-flex; align-items: center; gap: 6px;
  background: #fffdf5; border: 1px solid rgba(0,0,0,0.12);
  color: var(--text-secondary); font-family: inherit; font-weight: 600;
  font-size: 0.85rem; padding: 7px 14px; border-radius: 8px; cursor: pointer;
  box-shadow: 1px 2px 5px rgba(0,0,0,0.08); margin-bottom: 14px;
  transition: var(--transition-fast);
}
.gb-back:hover { background: #fff; transform: translateX(-2px); }
.gb-back i { width: 15px; height: 15px; }
.gb-header { margin-bottom: 16px; }
.gb-header .board-title { font-family: var(--font-title); font-size: 1.35rem; font-weight: 700; display:flex; align-items:center; gap:8px; color: var(--text-primary); }
.gb-header .board-title i { width: 22px; height: 22px; color: var(--primary); }
.gb-header .board-subtitle { font-size: 0.86rem; color: var(--text-muted); margin-top: 4px; }

/* 작성 폼 */
.gb-form {
  display: flex; flex-direction: column; gap: 8px;
  background: #fffdf3;
  border: 1px solid rgba(150,120,60,.28);
  border-radius: 14px;
  padding: 12px 18px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.gb-form input, .gb-form textarea {
  padding: 8px 13px; font-size: 0.95rem; font-family: inherit;
  color: var(--text-primary); background: #fff;
  border: 1px solid rgba(0,0,0,0.12); border-radius: 9px;
  outline: none; resize: vertical;
}
.gb-form input { font-weight: 700; }
.gb-form input:focus, .gb-form textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.gb-form-foot { display: flex; align-items: center; justify-content: flex-end; gap: 14px; flex-wrap: wrap; }
.gb-login-hint { font-size: 0.82rem; color: #b4651f; margin-right: auto; }
.gb-submit { border-radius: 9px; }
.gb-form-locked input, .gb-form-locked textarea { background: #f3f0e6; cursor: not-allowed; }

/* 포스트잇 목록 */
.note-list {
  list-style: none; margin: 22px 0 0; padding: 12px 18px 0;
  display: grid; gap: 24px 18px;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
}
.note-item {
  position: relative; display: flex; flex-direction: column; gap: 6px;
  min-height: 132px; padding: 18px 16px 14px;
  border-radius: 4px; background: #fff3a6;
  box-shadow: 3px 5px 14px rgba(0,0,0,0.16);
  transition: transform 0.25s cubic-bezier(0.16,1,0.3,1), box-shadow 0.25s ease;
}
.note-item::before {
  content: ""; position: absolute; top: -10px; left: 50%;
  width: 74px; height: 20px; transform: translateX(-50%) rotate(-4deg);
  background: rgba(255,255,255,.55); border: 1px solid rgba(0,0,0,0.04);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.note-list li.note-item:nth-of-type(4n+1){ background:#fff3a6; }
.note-list li.note-item:nth-of-type(4n+2){ background:#d4eecb; }
.note-list li.note-item:nth-of-type(4n+3){ background:#ffd7c2; }
.note-list li.note-item:nth-of-type(4n+4){ background:#cfe6ff; }
.note-list li.note-item:hover {
  transform: rotate(0) translateY(-4px) scale(1.02); z-index: 2;
  box-shadow: 5px 10px 24px rgba(0,0,0,0.22);
}
.note-item h4 { font-size: 1rem; font-weight: 700; color: #3a2e10; margin: 0 46px 2px 0; word-break: break-word; }
.note-item .nbody { font-size: 0.86rem; color: #4a3c18; white-space: pre-wrap; word-break: break-word; line-height: 1.55; flex: 1; }
.note-item .nmeta { font-size: 0.72rem; color: rgba(80,60,20,.62); margin-top: 8px; }
.note-item .nactions { position: absolute; top: 10px; right: 11px; display: flex; gap: 7px; }
.note-item .nactions button {
  border: none; background: rgba(255,255,255,.5); border-radius: 6px; cursor: pointer;
  width: 27px; height: 27px; display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; line-height: 1; transition: background 0.15s ease, color 0.15s ease;
}
.note-item .nactions .ndel { font-size: 1.15rem; color: #a06a4a; }
.note-item .nactions button:hover { background: rgba(255,255,255,.9); }
.note-item .nactions .ndel:hover { color: #dc2626; }

/* 인라인 편집 */
.note-item .ne-title, .note-item .ne-body {
  width: 100%; font-family: inherit; color: #3a2e10;
  background: rgba(255,255,255,.72); border: 1px solid rgba(0,0,0,0.15);
  border-radius: 7px; padding: 8px 10px; outline: none;
}
.note-item .ne-title { font-size: 0.95rem; font-weight: 700; }
.note-item .ne-body { font-size: 0.85rem; margin-top: 6px; resize: vertical; }
.note-item .ne-btns { display: flex; gap: 7px; justify-content: flex-end; margin-top: 8px; }
.note-item .ne-btns button { border: none; border-radius: 7px; cursor: pointer; padding: 6px 14px; font-size: 0.8rem; font-weight: 700; }
.note-item .ne-save { background: var(--primary); color: #fff; }
.note-item .ne-cancel { background: rgba(255,255,255,.7); color: #6b5320; }

.gb-empty { text-align: center; color: rgba(0,0,0,0.45); padding: 44px 0; }
.gb-loading { list-style: none; text-align: center; color: rgba(0,0,0,0.45); padding: 30px 0; grid-column: 1 / -1; }

@media (max-width: 768px) {
  .guestbook-view { padding-left: 30px; }
  .note-list { grid-template-columns: 1fr 1fr; gap: 20px 12px; }
  .note-list li.note-item { transform: rotate(0) !important; }
}