:root{
  --bg:#050914;
  --bg-2:#0a1020;
  --panel:rgba(9,16,34,.82);
  --panel-2:rgba(14,24,48,.92);
  --line:rgba(85,114,161,.28);
  --text:#eef6ff;
  --muted:#93a4c7;
  --neon:#00e0ff;
  --neon-2:#6ef2ff;
  --danger:#ff5a7a;
  --warning:#ffca56;
  --success:#6effc7;
  --radius:20px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --neon-shadow:0 0 0 1px rgba(0,224,255,.08), 0 0 24px rgba(0,224,255,.16);
  --max:1200px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Inter","Pretendard","Segoe UI",sans-serif;
  background:
    radial-gradient(circle at top right, rgba(0,224,255,.08), transparent 22%),
    radial-gradient(circle at left 20%, rgba(62,112,255,.08), transparent 18%),
    linear-gradient(180deg, #030711 0%, #060b17 45%, #04070f 100%);
  color:var(--text);
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
img{display:block;max-width:100%}

/* ── Utility ──────────────────────────────────────── */
.page-shell{
  width:min(calc(100% - 28px), var(--max));
  margin:0 auto;
}
.glass{
  background:linear-gradient(180deg, rgba(14,22,43,.84), rgba(8,14,30,.88));
  border:1px solid var(--line);
  box-shadow:var(--shadow), var(--neon-shadow);
  backdrop-filter:blur(18px);
}

/* PC / 모바일 가시성 헬퍼 */
.pc-only{ display:block; }
.m-only { display:none;  }

/* ── Auth ─────────────────────────────────────────── */
.auth-wrap{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:24px;
}
.auth-card{
  width:min(100%, 470px);
  border-radius:28px;
  padding:34px 28px 26px;
}
.brand{ display:flex; align-items:center; gap:16px; margin-bottom:18px; }
.brand-mark{ width:60px; height:60px; }
.brand-text h1{ margin:0; font-size:2rem; line-height:1; letter-spacing:-.03em; }
.brand-text p{ margin:.5rem 0 0; color:var(--muted); font-size:.95rem; }
.alert-error{
  background:rgba(255,90,122,.12);
  border:1px solid rgba(255,90,122,.3);
  color:#ff8fa8;
  border-radius:14px;
  padding:12px 16px;
  font-size:.94rem;
  margin-bottom:8px;
}

/* ── Form ─────────────────────────────────────────── */
.form-grid{ display:grid; gap:14px; margin-top:24px; }
.field{ margin-bottom:4px; }
.field label{ display:block; margin-bottom:8px; color:#dce8ff; font-size:.93rem; }
.input{
  width:100%;
  border-radius:16px;
  border:1px solid rgba(110,132,173,.24);
  background:rgba(8,15,29,.95);
  color:var(--text);
  padding:15px 16px;
  outline:none;
  transition:.2s ease;
}
.input:focus{
  border-color:rgba(0,224,255,.6);
  box-shadow:0 0 0 3px rgba(0,224,255,.14), 0 0 18px rgba(0,224,255,.12);
}
.check-row{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin:8px 0 4px; }
.check{ display:flex; align-items:center; gap:10px; color:var(--muted); font-size:.94rem; }
.check input{ accent-color:var(--neon); width:18px; height:18px; }

/* ── Buttons ──────────────────────────────────────── */
.btn{
  border:none;
  border-radius:16px;
  padding:14px 18px;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .2s ease, opacity .2s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn:active{ transform:translateY(0); }
.btn:disabled{ opacity:.4; cursor:default; transform:none; }
.btn-primary{
  background:linear-gradient(135deg, var(--neon), #00a8ff);
  color:#02111a;
  font-weight:800;
  box-shadow:0 12px 30px rgba(0,180,255,.24);
}
.btn-dark{
  background:rgba(13,21,40,.9);
  color:var(--text);
  border:1px solid rgba(91,116,160,.24);
}
.helper{ display:flex; justify-content:space-between; align-items:center; gap:12px; color:var(--muted); font-size:.9rem; }

/* ── Header ───────────────────────────────────────── */
.app-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(3,7,17,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(70,95,135,.18);
}
.app-header .inner{
  width:min(calc(100% - 28px), var(--max));
  margin:0 auto;
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.brand-inline{ display:flex; align-items:center; gap:14px; }
.brand-inline img{ width:160px; height:auto; }
.header-actions{ display:flex; align-items:center; gap:8px; }
.icon-btn{
  width:42px; height:42px;
  display:grid; place-items:center;
  border-radius:14px;
  border:1px solid rgba(84,106,146,.26);
  background:rgba(10,18,35,.88);
  color:var(--text);
  cursor:pointer;
  font-size:1.2rem;
}

/* 햄버거 버튼 */
.hamburger{
  width:42px; height:42px;
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  border-radius:14px;
  border:1px solid rgba(84,106,146,.26);
  background:rgba(10,18,35,.88);
  cursor:pointer;
  padding:0;
}
.hamburger span{
  display:block;
  width:20px; height:2px;
  background:var(--text);
  border-radius:2px;
  transition:.2s;
}

/* 모바일 로그아웃 아이콘 */
.m-logout-btn{
  display:none;
  width:36px; height:36px;
  border-radius:50%;
  overflow:hidden;
  border:1px solid rgba(84,106,146,.26);
  background:rgba(10,18,35,.88);
}
.m-logout-btn img{ width:100%; height:100%; object-fit:cover; }

/* ── Search bar ───────────────────────────────────── */
.search-bar{
  display:none;
  padding:0 14px 12px;
  width:min(calc(100% - 28px), var(--max));
  margin:0 auto;
}
.search-bar.active{ display:block; }
.search-form{ display:flex; gap:8px; }
.search-form .input{ flex:1; }

/* ── Dashboard ────────────────────────────────────── */
.dashboard{ padding:24px 0 60px; }
.app-grid{
  display:grid;
  grid-template-columns:270px 1fr;
  gap:20px;
}

/* ── Sidebar (PC) ─────────────────────────────────── */
.sidebar{
  border-radius:24px;
  padding:18px;
  align-self:start;
  position:sticky;
  top:88px;
}
.sidebar h2, .main-panel h2{ margin:0 0 14px; font-size:1.03rem; letter-spacing:-.02em; }
.folder-list{ display:grid; gap:8px; }
.folder-item-wrap{ display:grid; gap:4px; }
.folder-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:16px;
  background:rgba(7,13,28,.72);
  border:1px solid rgba(76,95,129,.22);
  transition:.15s;
}
.folder-item:hover{ border-color:rgba(0,224,255,.26); }
.folder-item.active{
  border-color:rgba(0,224,255,.46);
  box-shadow:0 0 0 1px rgba(0,224,255,.08), inset 0 0 0 1px rgba(0,224,255,.08);
}
.folder-meta{ display:flex; align-items:center; gap:12px; min-width:0; }
.dot{
  flex-shrink:0;
  width:10px; height:10px; border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 12px rgba(0,224,255,.6);
}
.folder-name{ font-weight:700; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.folder-count{ color:var(--muted); font-size:.86rem; }
.folder-manage-btns{ display:none; gap:6px; padding:0 4px; }
.sidebar-foot{ margin-top:14px; display:grid; gap:10px; }

/* ── Main panel ───────────────────────────────────── */
.main-panel{ border-radius:24px; padding:20px; }

/* ── Quick Write ──────────────────────────────────── */
.quick-write{
  border-radius:22px;
  padding:18px;
  margin-bottom:20px;
  background:linear-gradient(180deg, rgba(12,22,44,.94), rgba(8,15,29,.9));
  border:1px solid rgba(0,224,255,.18);
  box-shadow:0 0 0 1px rgba(0,224,255,.06), 0 16px 40px rgba(0,0,0,.32);
}
.quick-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:12px; }
.quick-head p{ margin:6px 0 0; color:var(--muted); font-size:.92rem; }

/* PC: textarea 좌 + 옵션패널 우 */
.write-layout{
  display:grid;
  grid-template-columns:1fr 185px;
  gap:12px;
  margin-bottom:12px;
}
.qc-textarea{ min-height:130px; resize:vertical; }
.qc-opts{
  border-radius:18px;
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.qc-opts .field{ margin-bottom:0; }

.write-actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.qc-save-btn{ padding:14px 20px; }
.select{ min-width:0; }

/* ── Note toolbar ─────────────────────────────────── */
.note-toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
  flex-wrap:wrap;
}

/* ── Note cards (PC: grid) ────────────────────────── */
.notes-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.note-card{
  min-height:190px;
  border-radius:20px;
  padding:16px;
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg, rgba(14,22,44,.94), rgba(7,12,24,.88));
  border:1px solid rgba(71,94,133,.22);
  box-shadow:0 14px 30px rgba(0,0,0,.22);
  display:flex;
  flex-direction:column;
}
.note-card::before{
  content:"";
  position:absolute;
  inset:0 auto auto 0;
  width:100%; height:3px;
  background:linear-gradient(90deg, rgba(0,224,255,.8), rgba(0,224,255,0));
}
.note-card.pinned{
  border-color:rgba(0,224,255,.35);
  box-shadow:0 0 0 1px rgba(0,224,255,.08), 0 14px 30px rgba(0,0,0,.22);
}
.note-card.pinned::before{
  background:linear-gradient(90deg, var(--neon), var(--success), rgba(0,224,255,0));
}
.note-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-bottom:10px;
  flex-wrap:wrap;
}
.badge{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  background:rgba(0,224,255,.1);
  color:var(--neon-2);
  padding:4px 10px;
  font-size:.8rem;
  border:1px solid rgba(0,224,255,.2);
  white-space:nowrap;
}
.note-date{ color:var(--muted); font-size:.8rem; white-space:nowrap; }
.note-card h3{
  margin:0 0 8px;
  font-size:.96rem;
  line-height:1.4;
  letter-spacing:-.02em;
  flex:1;
}
.note-card p{
  margin:0;
  color:#c5d8f0;
  line-height:1.6;
  font-size:.88rem;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.note-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-top:auto;
  padding-top:12px;
}
.ghost-actions{ display:flex; gap:6px; }
.ghost-btn{
  border:none;
  background:rgba(255,255,255,.05);
  color:var(--muted);
  padding:7px 12px;
  border-radius:10px;
  cursor:pointer;
  font-size:.86rem;
  transition:.15s;
}
.ghost-btn:hover{ background:rgba(255,255,255,.1); color:var(--text); }
.ghost-btn.danger:hover{ background:rgba(255,90,122,.15); color:var(--danger); }

.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:var(--muted);
  line-height:1.8;
}

/* ── Mobile pagination ────────────────────────────── */
.m-pagination{
  display:none;
  align-items:center;
  justify-content:center;
  gap:16px;
  margin-top:20px;
}
.m-page-info{ color:var(--muted); font-size:.9rem; min-width:60px; text-align:center; }

/* ── Modal ────────────────────────────────────────── */
.modal-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(6px);
  z-index:300;
  place-items:center;
  padding:20px;
}
.modal-overlay.active{ display:grid; }
.modal-card{
  width:min(100%, 540px);
  border-radius:24px;
  padding:24px;
  max-height:90vh;
  overflow-y:auto;
}
.modal-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.modal-head h3{ margin:0; font-size:1.05rem; }
.modal-row{ display:flex; gap:12px; flex-wrap:wrap; }
.modal-row .field{ flex:1; min-width:130px; }
.modal-actions{ display:flex; gap:10px; justify-content:flex-end; margin-top:18px; }

/* ── Note View Modal ──────────────────────────────── */
.view-meta{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.view-content{
  white-space:pre-wrap;
  word-break:break-word;
  line-height:1.75;
  font-size:.95rem;
  color:var(--text);
  max-height:55vh;
  overflow-y:auto;
  padding:14px 16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
}
.btn-danger-outline{
  border:1px solid rgba(255,90,122,.4) !important;
  color:var(--danger) !important;
  background:rgba(255,90,122,.08) !important;
}
.btn-danger-outline:hover{
  background:rgba(255,90,122,.18) !important;
}
.modal-actions form{ margin:0; }

/* ── Color picker ─────────────────────────────────── */
.color-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:8px; }
.color-dot{
  width:30px; height:30px;
  border-radius:50%;
  border:3px solid transparent;
  cursor:pointer;
  transition:.15s;
  padding:0;
}
.color-dot.selected{ border-color:var(--text); transform:scale(1.15); }
.color-dot:hover{ transform:scale(1.1); }

/* ── Mobile Drawer ────────────────────────────────── */
.mobile-drawer{
  display:none;
  position:fixed;
  inset:0;
  z-index:200;
}
.mobile-drawer.open{ display:block; }
.drawer-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(4px);
}
.drawer-panel{
  position:absolute;
  top:0; left:0; bottom:0;
  width:min(300px, 82vw);
  border-radius:0 24px 24px 0;
  padding:20px 16px;
  display:flex;
  flex-direction:column;
  gap:12px;
  overflow-y:auto;
  transform:translateX(-100%);
  transition:transform .25s ease;
}
.mobile-drawer.open .drawer-panel{
  transform:translateX(0);
}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:4px;
}
.drawer-head h3{ margin:0; font-size:.98rem; }
.drawer-foot{ margin-top:auto; display:grid; gap:8px; padding-top:12px; }
.drawer-manage{ display:none; gap:6px; padding:0 4px; }

/* ══════════════════════════════════════════════════════
   반응형 ─ 1100px
══════════════════════════════════════════════════════ */
@media (max-width:1100px){
  .notes-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}

/* ══════════════════════════════════════════════════════
   반응형 ─ 900px
══════════════════════════════════════════════════════ */
@media (max-width:900px){
  .app-grid{ grid-template-columns:1fr; }
  .write-grid{ grid-template-columns:1fr; }
}

/* ══════════════════════════════════════════════════════
   모바일 ─ 700px 이하 (완전히 다른 레이아웃)
══════════════════════════════════════════════════════ */
@media (max-width:700px){
  /* 전체 폰트 소폭 축소 */
  body{ font-size:14px; }

  /* 가시성 전환 */
  .pc-only{ display:none !important; }
  .m-only { display:flex !important; }

  /* 헤더 */
  .app-header .inner{ min-height:58px; gap:8px; }
  .brand-inline img{ width:120px; }
  .hamburger{ display:flex; }
  .m-logout-btn{ display:flex; align-items:center; justify-content:center; }

  /* 검색바 */
  .search-bar{ padding:0 10px 10px; }

  /* 대시보드 여백 축소 */
  .dashboard{ padding:12px 0 80px; }
  .page-shell{ width:calc(100% - 20px); }

  /* 메인 패널 */
  .main-panel{ border-radius:18px; padding:14px; }

  /* Quick Write 모바일 */
  .quick-write{ padding:14px; margin-bottom:14px; border-radius:18px; }
  /* 단일컬럼으로 전환 */
  .write-layout{ grid-template-columns:1fr; gap:8px; }
  .qc-textarea{
    min-height:140px;
    resize:none;
    font-size:.93rem;
    border-radius:14px;
    padding:13px 14px;
  }
  /* 옵션 패널: glass 제거, 가로 나열 */
  .qc-opts{
    flex-direction:row;
    gap:8px;
    background:none;
    border:none;
    box-shadow:none;
    backdrop-filter:none;
    padding:0;
    border-radius:0;
  }
  .qc-opts .field{ flex:1; margin-bottom:0; }
  .qc-opts .field label{ display:none; }
  .qc-opts .input{ font-size:.82rem; padding:9px 11px; border-radius:12px; }
  /* 저장 버튼: 전체 너비, 세로 폭 줄임 */
  .qc-save-btn{ width:100%; padding:10px; font-size:.92rem; border-radius:14px; margin-top:2px; }

  /* 노트 툴바 */
  .note-toolbar{ gap:8px; margin-bottom:10px; }
  .note-toolbar h2{ font-size:.9rem; }
  .note-toolbar .input{ font-size:.82rem; padding:8px 10px; border-radius:12px; }

  /* 노트 카드 → 세로형 리스트 */
  .notes-grid{
    grid-template-columns:1fr;
    gap:10px;
  }
  .note-card{
    min-height:0;
    border-radius:16px;
    padding:14px;
  }
  .note-card::before{ height:2px; }
  .note-card h3{ font-size:.9rem; line-height:1.45; margin-bottom:6px; }
  .note-card p{
    font-size:.84rem;
    line-height:1.65;
    -webkit-line-clamp:4;
    color:#bdd0ee;
  }
  .badge{ font-size:.75rem; padding:3px 8px; }
  .note-date{ font-size:.75rem; }
  .note-foot{ padding-top:10px; }
  .ghost-btn{ font-size:.8rem; padding:6px 10px; border-radius:9px; }
  .folder-count{ font-size:.78rem; }

  /* 페이지네이션 */
  .m-pagination{ margin-top:14px; gap:12px; }
  .m-pg-btn{ padding:7px 14px; font-size:.8rem; border-radius:10px; }
}