/* ═══════════════════════════════════════════════════════════
   Scholr — Premium Academic Reference Manager
   Design: Compact Nature/Forest Editorial — Mendeley-inspired
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
  /* Surfaces — cool Outlook greys */
  --bg:        #f3f2f1;
  --surface:   #ffffff;
  --surface2:  #faf9f8;
  --surface3:  #edebe9;
  --border:    rgba(0,0,0,.06);
  --border2:   rgba(0,0,0,.12);

  /* Text — slightly cooler + softer */
  --text:      #201f1e;
  --text2:     #605e5c;
  --text3:     #8a8886;
  --ink3:      #8a8886;

  /* Accent — Outlook blue (Fluent UI style) */
  --accent:    #0f6cbd;
  --accent-h:  #115ea3;
  --accent-d:  #0c4a8a;
  --accent-bg: rgba(15,108,189,.08);
  --accent-glow: 0 4px 16px rgba(15,108,189,.18);

  /* Semantic — toned down, less saturated */
  --green:     #107c10;
  --green-bg:  rgba(16,124,16,.10);

  --yellow:    #986f0b;
  --yellow-bg: rgba(152,111,11,.10);

  --red:       #d13438;
  --red-bg:    rgba(209,52,56,.10);

  --blue:      #0f6cbd;
  --blue-bg:   rgba(15,108,189,.10);

  --danger:    #d13438;

  /* Layout (unchanged) */
  --sidebar-w: 210px;
  --topbar-h:  46px;
  --radius:    4px;
  --radius-lg: 7px;

  /* Fonts (unchanged) */
  --font:       'Inter', system-ui, sans-serif;
  --font-serif: 'DM Sans', sans-serif;
  --font-body:  'Inter', sans-serif;
  --font-mono:  'SF Mono','Fira Code',monospace;

  /* Motion (unchanged) */
  --ease:  cubic-bezier(.4,0,.2,1);
  --fast:  90ms;
  --mid:   170ms;
  --slow:  250ms;
}

/* ── Reset ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;font-size:13px}
a{color:var(--accent);text-decoration:none;transition:color var(--fast) var(--ease)}
a:hover{color:var(--accent-d)}
img{display:block;max-width:100%}
button{cursor:pointer;font-family:var(--font)}
input,textarea,select{font-family:var(--font)}

::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--surface3);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--border2)}

/* ════════════════════════════════════════════════════════════
   APP SHELL
   ════════════════════════════════════════════════════════════ */
.app-shell{
  display:grid;
  grid-template-columns:var(--sidebar-w) 1fr;
  grid-template-rows:var(--topbar-h) 1fr;
  grid-template-areas:"topbar topbar" "sidebar main";
  min-height:100vh;
}

/* ── Top bar ─────────────────────────────────────────────── */
.topbar{
  grid-area:topbar;
  background:var(--accent);
  display:flex;align-items:center;
  padding:0 .9rem;gap:.65rem;
  position:sticky;top:0;z-index:200;
  height:var(--topbar-h);
}
.topbar-logo{
  font-family:var(--font-serif);font-size:1rem;font-weight:700;
  color:#fff;letter-spacing:-.01em;
  display:flex;align-items:center;gap:.35rem;
  flex-shrink:0;width:calc(var(--sidebar-w) - .9rem);
}
.topbar-search{flex:1;position:relative;max-width:380px}
.topbar-search input{
  width:100%;background:rgba(255,255,255,.95);
  border:1px solid rgba(255,255,255,.2);border-radius:3px;
  padding:.26rem .75rem .26rem 1.9rem;font-size:.76rem;
  color:#111;height:26px;
  transition:background var(--mid),border-color var(--mid);
}
.topbar-search input::placeholder{color:rgba(30,30,30,.42)}
.topbar-search input:focus{outline:none;background:#fff}
.topbar-search .search-ico{
  position:absolute;left:.55rem;top:50%;transform:translateY(-50%);
  color:rgba(0,0,0,.42);font-size:.75rem;pointer-events:none;
}
.topbar-right{display:flex;align-items:center;gap:.45rem;margin-left:auto}
.topbar-btn{
  background:rgba(255,255,255,.14);color:#fff;
  border:1px solid rgba(255,255,255,.25);border-radius:3px;
  padding:.22rem .65rem;font-size:.72rem;font-weight:600;
  display:flex;align-items:center;gap:.3rem;
  transition:background var(--fast),border-color var(--fast);
  text-decoration:none;height:24px;
}
.topbar-btn:hover{background:rgba(255,255,255,.25);border-color:rgba(255,255,255,.45);color:#fff}

.avatar-btn{
  width:24px;height:24px;border-radius:50%;
  background:rgba(255,255,255,.2);border:1.5px solid rgba(255,255,255,.38);
  display:flex;align-items:center;justify-content:center;
  font-size:.6rem;font-weight:700;color:#fff;cursor:pointer;
  position:relative;transition:all 100ms var(--ease);
}
.avatar-btn:hover{border-color:rgba(255,255,255,.72);background:rgba(255,255,255,.28)}

.avatar-menu{
  position:absolute;top:calc(100% + 5px);right:0;
  min-width:190px;background:var(--surface);
  border:1px solid var(--border2);border-radius:7px;
  box-shadow:0 8px 28px rgba(0,0,0,.13),0 2px 6px rgba(0,0,0,.06);
  overflow:hidden;z-index:300;
  opacity:0;visibility:hidden;transform:translateY(-4px) scale(.98);
  transition:opacity 110ms var(--ease),transform 130ms var(--ease),visibility 110ms;
  pointer-events:none;
}
.avatar-btn:hover .avatar-menu,.avatar-menu:hover{
  opacity:1;visibility:visible;pointer-events:auto;
}
.avatar-menu-header{
  padding:.55rem .8rem;border-bottom:1px solid var(--border);background:var(--surface2);
}
.avatar-menu-header strong{display:block;font-size:.76rem;color:var(--text)}
.avatar-menu-header span{font-size:.67rem;color:var(--text3)}
.avatar-menu a{
  display:flex;align-items:center;gap:.5rem;
  padding:.38rem .8rem;font-size:.74rem;color:var(--text2);
  transition:background 90ms var(--ease),color 90ms var(--ease);
}
.avatar-menu a:hover{background:var(--surface2);color:var(--text)}
.avatar-menu a.danger{color:var(--red)}
.avatar-menu a.danger:hover{background:var(--red-bg);color:var(--red)}
.avatar-menu hr{border:none;border-top:1px solid var(--border);margin:.18rem 0}

/* ════════════════════════════════════════════════════════════
   SIDEBAR
   ════════════════════════════════════════════════════════════ */
.sidebar{
    background: rgba(255,255,255,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid rgba(0,0,0,0.05);
  grid-area:sidebar;background:var(--surface);
  overflow-y:auto;position:sticky;
  top:var(--topbar-h);height:calc(100vh - var(--topbar-h));
  padding:.4rem 0;
}
.sidebar-section{margin-bottom:.08rem}
.sidebar-label{
  font-size:.58rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--text3);
  padding:.5rem .8rem .18rem;
}
.sidebar-link{
  display:flex;align-items:center;gap:.4rem;
  padding:.3rem .8rem;color:var(--text2);
  font-size:.77rem;font-weight:400;
  transition:background var(--fast),color var(--fast);
  position:relative;cursor:pointer;border:none;
  background:none;width:100%;text-align:left;
  text-decoration:none;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;line-height:1.3;
}
.sidebar-link:hover {
  background: rgba(0,0,0,0.03);
  /* transform: translateX(2px); */
}
.sidebar-link.active {
  background: linear-gradient(90deg, rgba(15,108,189,0.12), rgba(15,108,189,0.05));
  color: var(--accent);
  font-weight: 600;
  border-radius: 6px;
}
.sidebar-link.active::before {
  width: 3px;
  border-radius: 4px;
  box-shadow: 0 0 8px rgba(15,108,189,0.5);
}
.sidebar-link .ico{width:14px;text-align:center;font-size:.76rem;flex-shrink:0;opacity:.65}
.sidebar-link.active .ico{opacity:1}
.sidebar-link .lbl{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar-link .count{
  margin-left:auto;color:var(--text3);
  font-size:.58rem;font-weight:600;padding: 2px 6px;
  border-radius:99px;min-width:16px;text-align:center;flex-shrink:0;
    background: rgba(0,0,0,0.04);
}
.sidebar-link.active .count{background:var(--accent-bg);color:var(--accent)}
.sidebar-collection-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.sidebar-add-btn{
  width:15px;height:15px;border-radius:50%;background:var(--surface3);
  border:none;color:var(--text3);font-size:.6rem;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;margin-left:auto;flex-shrink:0;
  transition:background var(--fast),color var(--fast);
}
.sidebar-add-btn:hover{background:var(--accent-bg);color:var(--accent)}
.sidebar-divider{height:1px;background:var(--border);margin:.28rem .8rem}

/* ════════════════════════════════════════════════════════════
   MAIN CONTENT
   ════════════════════════════════════════════════════════════ */
.main-content{
  grid-area:main;overflow-y:auto;
  min-height:calc(100vh - var(--topbar-h));background:var(--bg);
}
.content-header{
  padding:.5rem 1.1rem;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:.6rem;
  background:var(--surface);position:sticky;top:0;z-index:100;
  flex-wrap:wrap;min-height:40px;
}
.content-title{font-family:var(--font-serif);font-size:.95rem;font-weight:600;color:var(--text);letter-spacing:-.01em}
.content-count{font-size:.67rem;color:var(--text3);background:var(--surface3);padding:.06rem .4rem;border-radius:99px}
.content-actions{display:flex;gap:.35rem;margin-left:auto;align-items:center}
.content-body{padding:0}

.toolbar{display:flex;gap:.35rem;align-items:center;margin-bottom:.7rem;flex-wrap:wrap}
.toolbar-group{display:flex;gap:.28rem}

.view-toggle{
  display:flex;background:var(--surface3);
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-left:auto;
}
.view-toggle-btn{background:none;border:none;color:var(--text3);padding:.18rem .45rem;font-size:.8rem;transition:background var(--fast),color var(--fast)}
.view-toggle-btn.active{background:var(--surface);color:var(--text)}

/* ════════════════════════════════════════════════════════════
   REFERENCE CARDS — compact list
   ════════════════════════════════════════════════════════════ */
.ref-list{display:flex;flex-direction:column}

.ref-card{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:.42rem .85rem .42rem .9rem;
  display:grid;grid-template-columns:auto 1fr auto;
  gap:0 .6rem;align-items:center;
  transition:background var(--fast);cursor:pointer;
  animation:card-in var(--slow) var(--ease) both;position:relative;
}
.ref-card:first-child{border-top:1px solid var(--border)}
.ref-card:hover{background:#f3f7f5}
.ref-card.starred{border-left:2.5px solid #c68b0a}

@keyframes card-in{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}

.ref-check{
  width:12px;height:12px;border:1.5px solid var(--border2);
  border-radius:2px;background:transparent;cursor:pointer;
  flex-shrink:0;appearance:none;-webkit-appearance:none;
  transition:background var(--fast),border-color var(--fast);margin-top:1px;
}
.ref-check:checked{
  background:var(--accent);border-color:var(--accent);
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 10 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 4l3 3 5-6' stroke='white' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:8px;
}

.ref-body{min-width:0}
.ref-title{
  font-size:.8rem;font-weight:600;color:var(--accent);line-height:1.3;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.ref-card:hover .ref-title{color:var(--accent-d)}
.ref-authors{font-size:.71rem;color:var(--text3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.25;margin-top:.08rem}
.ref-meta{
  display:flex;gap:.45rem;font-size:.68rem;color:var(--text3);
  align-items:center;margin-top:.06rem;flex-wrap:nowrap;overflow:hidden;
}
.ref-meta-item{display:flex;align-items:center;gap:.18rem;white-space:nowrap}
.ref-meta-item.journal{font-style:italic}
.ref-tags{display:flex;gap:.22rem;flex-wrap:nowrap;overflow:hidden;margin-top:.14rem}
.tag-pill{font-size:.6rem;font-weight:600;padding:.06rem .34rem;border-radius:2px;letter-spacing:.01em;white-space:nowrap}

.ref-side{display:flex;flex-direction:column;align-items:flex-end;gap:.22rem;flex-shrink:0;min-width:42px}
.ref-year{font-size:.67rem;color:var(--text3);font-variant-numeric:tabular-nums;white-space:nowrap}
.ref-actions{display:flex;gap:0.85rem;opacity:0;transition:opacity var(--fast)}
.ref-card:hover .ref-actions{opacity:1}
.ref-icon-btn{
  background:transparent;border:1px solid transparent;color:var(--text3);
  border-radius:3px;width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  font-size:.62rem;transition:all var(--fast);cursor:pointer;text-decoration:none;
}
.ref-icon-btn:hover{background:var(--accent-bg);border-color:rgba(26,107,92,.2);color:var(--accent)}
.ref-icon-btn.danger:hover{background:var(--red-bg);border-color:rgba(185,28,28,.2);color:var(--red)}
.ref-icon-btn.star-btn.starred{color:#a16207}

.ref-read-pill{font-size:.57rem;font-weight:700;padding:.06rem .3rem;border-radius:2px;background:var(--green-bg);color:var(--green);letter-spacing:.04em;text-transform:uppercase}
.ref-pdf-pill{font-size:.57rem;font-weight:700;padding:.06rem .3rem;border-radius:2px;background:var(--accent-bg);color:var(--accent);text-transform:uppercase}

/* Badges */
.badge{display:inline-flex;align-items:center;gap:.18rem;font-size:.59rem;font-weight:600;padding:.06rem .35rem;border-radius:2px;letter-spacing:.01em;white-space:nowrap;text-transform:uppercase}
.badge-type-journal    {background:rgba(26,107,92,.09);color:var(--accent)}
.badge-type-conference {background:rgba(29,78,216,.09);color:#1d4ed8}
.badge-type-book       {background:rgba(161,98,7,.09);color:#a16207}
.badge-type-book_chapter{background:rgba(161,98,7,.07);color:#92400e}
.badge-type-thesis     {background:rgba(107,33,168,.09);color:#6b21a8}
.badge-type-report     {background:rgba(6,95,70,.09);color:#065f46}
.badge-type-website    {background:rgba(55,65,81,.09);color:#374151}
.badge-type-patent     {background:rgba(185,28,28,.09);color:#b91c1c}

/* ── Grid view ─────────────────────────────────────────────── */
.ref-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.6rem;padding:.75rem}
.ref-grid-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:.8rem;
  transition:border-color var(--fast),box-shadow var(--fast);
  animation:card-in var(--slow) var(--ease) both;cursor:pointer;
}
.ref-grid-card:hover{border-color:var(--accent);box-shadow:0 3px 10px rgba(26,107,92,.09)}
.ref-grid-card .ref-title{-webkit-line-clamp:2;font-size:.78rem}
.ref-grid-cover{
  height:60px;background:linear-gradient(135deg,#e5f2ee 0%,#ccebe2 100%);
  border-radius:var(--radius);margin-bottom:.55rem;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;border:1px solid rgba(26,107,92,.1);
}

/* ════════════════════════════════════════════════════════════
   BUTTONS
   ════════════════════════════════════════════════════════════ */
.btn{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.28rem .65rem;border-radius:var(--radius);
  font-size:.74rem;font-weight:600;cursor:pointer;border:none;
  transition:all var(--fast) var(--ease);text-decoration:none;
  white-space:nowrap;line-height:1;height:26px;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);color:#fff;box-shadow:0 2px 7px rgba(26,107,92,.22)}
.btn-secondary{background:var(--surface);color:var(--text2);border:1px solid var(--border2)}
.btn-secondary:hover{background:var(--surface2);border-color:var(--accent);color:var(--accent)}
.btn-danger{background:var(--red-bg);color:var(--red);border:1px solid rgba(185,28,28,.18)}
.btn-danger:hover{background:var(--red);color:#fff}
.btn-ghost{background:transparent;color:var(--text3);border:1px solid transparent}
.btn-ghost:hover{background:var(--surface2);color:var(--text2);border-color:var(--border)}
.btn-xs{height:22px;padding:.16rem .48rem;font-size:.68rem}

/* ════════════════════════════════════════════════════════════
   FORM / CONTAINER
   ════════════════════════════════════════════════════════════ */
.container{max-width:760px;margin:0 auto;padding:1.1rem 1.3rem}
.page-title{
  font-family:var(--font-serif);font-size:1.1rem;font-weight:600;
  color:var(--text);margin-bottom:.85rem;padding-bottom:.55rem;
  border-bottom:1px solid var(--border);
  display:flex;align-items:baseline;gap:.5rem;
}
.page-title small{font-family:var(--font);font-size:.68rem;color:var(--text3);font-weight:400}

.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:0;margin-bottom:.75rem;
  box-shadow:0 1px 3px rgba(0,0,0,.04);overflow:hidden;
}

/* Detail sections */
.detail-section{
  padding:.5rem .95rem;border-bottom:1px solid var(--border);
  display:grid;grid-template-columns:90px 1fr;
  gap:.25rem .65rem;align-items:baseline;
  font-size:.78rem;line-height:1.42;
}
.detail-section:last-child{border-bottom:none}
.detail-section-label{
  font-size:.65rem;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--text3);padding-top:.03rem;white-space:nowrap;
}
.detail-section>div:last-child{color:var(--text2);word-break:break-word}

/* Form grid */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.65rem .9rem;padding:.9rem}
.field{display:flex;flex-direction:column;gap:.22rem}
.field.span2{grid-column:span 2}
.field label{font-size:.65rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--text3)}
.field input,.field textarea,.field select{
  background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);
  padding:.4rem .6rem;font-size:.79rem;color:var(--text);
  transition:border-color var(--mid),box-shadow var(--mid);width:100%;line-height:1.4;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(26,107,92,.1);
}
.field textarea{min-height:72px;resize:vertical}
.hint{font-size:.68rem;color:var(--text3)}

/* ════════════════════════════════════════════════════════════
   SPLIT PANEL
   ════════════════════════════════════════════════════════════ */
.split-layout{display:flex;height:calc(100vh - var(--topbar-h));overflow:hidden;position:relative}
.split-list-panel{
  flex:1 1 auto;overflow-y:auto;
  transition:flex-basis .25s cubic-bezier(.4,0,.2,1),max-width .25s cubic-bezier(.4,0,.2,1);
  min-width:0;
}
.split-layout.detail-open .split-list-panel{flex:0 0 38%;max-width:38%;border-right:1px solid var(--border)}
.split-detail-panel{
  flex:0 0 0%;max-width:0;overflow:hidden;overflow-y:auto;
  background:var(--surface);
  transition:flex-basis .25s cubic-bezier(.4,0,.2,1),max-width .25s cubic-bezier(.4,0,.2,1);
  position:relative;
}
.split-layout.detail-open .split-detail-panel{flex:0 0 62%;max-width:62%}
.split-detail-inner{
  padding:0;min-height:100%;opacity:0;transform:translateX(12px);
  transition:opacity .18s ease .07s,transform .18s ease .07s;
}
.split-layout.detail-open .split-detail-inner{opacity:1;transform:translateX(0)}

.detail-panel-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:.35rem .85rem;border-bottom:1px solid var(--border);
  background:var(--surface2);position:sticky;top:0;z-index:10;
}
.detail-panel-bar .dpb-actions{display:flex;gap:.28rem}
.dpb-btn{
  background:none;border:1px solid var(--border);border-radius:3px;
  padding:.16rem .42rem;font-size:.68rem;cursor:pointer;color:var(--text3);
  display:inline-flex;align-items:center;gap:.22rem;text-decoration:none;
  transition:background .12s,color .12s;height:22px;
}
.dpb-btn:hover{background:var(--surface3);color:var(--text)}
.dpb-btn.danger:hover{background:var(--red-bg);color:var(--red);border-color:rgba(185,28,28,.22)}

.detail-loading{padding:1.1rem;display:flex;flex-direction:column;gap:.55rem}
.skel{
  background:linear-gradient(90deg,#f0f2f0 25%,#e4e8e4 50%,#f0f2f0 75%);
  background-size:200% 100%;border-radius:4px;animation:shimmer 1.4s infinite;
}
@keyframes shimmer{to{background-position:-200% 0}}

.ref-card.active-detail{background:#ecf5f0 !important;border-left:2.5px solid var(--accent)}

.split-detail-inner .container{max-width:100%;padding:0 .95rem 1.25rem}
.split-detail-inner .page-title{font-size:.88rem;padding:.55rem 0 .35rem;margin-bottom:.55rem}
.split-detail-inner .card{box-shadow:none;border:1px solid var(--border)}
.split-detail-inner .detail-section{padding:.42rem .85rem}
.split-detail-inner a[href*="index.php"].btn-ghost{display:none}

@media(max-width:768px){
  .split-layout.detail-open .split-list-panel{display:none}
  .split-layout.detail-open .split-detail-panel{flex:1 1 100%;max-width:100%}
}

/* ════════════════════════════════════════════════════════════
   MODALS
   ════════════════════════════════════════════════════════════ */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.35);
  display:none;align-items:center;justify-content:center;
  z-index:9000;padding:1rem;backdrop-filter:blur(2px);
}
.modal-overlay.open{display:flex}
.modal-box{
  background:var(--surface);border-radius:var(--radius-lg);
  box-shadow:0 10px 40px rgba(0,0,0,.18);overflow:hidden;
  animation:modal-in .16s var(--ease);max-width:520px;width:100%;
}
@keyframes modal-in{from{opacity:0;transform:translateY(-9px) scale(.98)}to{opacity:1;transform:none}}
.modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:.65rem .9rem;border-bottom:1px solid var(--border);background:var(--surface2);
}
.modal-title{font-size:.84rem;font-weight:700;color:var(--text)}
.modal-close{
  background:none;border:none;color:var(--text3);font-size:1rem;
  cursor:pointer;padding:0 2px;border-radius:3px;line-height:1;
  transition:background var(--fast),color var(--fast);
}
.modal-close:hover{background:var(--surface3);color:var(--text)}

/* ════════════════════════════════════════════════════════════
   MISC
   ════════════════════════════════════════════════════════════ */
.empty-state{text-align:center;padding:2.5rem 1.25rem;color:var(--text3)}
.empty-state-ico{font-size:1.8rem;margin-bottom:.5rem}
.empty-state h3{font-size:.92rem;color:var(--text2);margin-bottom:.3rem}
.empty-state p{font-size:.76rem;margin-bottom:.9rem}

.sep{color:var(--text3)}

.pagination{display:flex;gap:.18rem;align-items:center;padding:.65rem .95rem}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:24px;height:24px;border:1px solid var(--border);border-radius:3px;
  font-size:.68rem;color:var(--text2);transition:all var(--fast);
  background:var(--surface);text-decoration:none;
}
.pagination a:hover{background:var(--accent-bg);border-color:var(--accent);color:var(--accent)}
.pagination .cur{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}
.pagination .dis{opacity:.28;pointer-events:none}

.chip{
  display:inline-flex;align-items:center;gap:.22rem;
  padding:.17rem .5rem;border-radius:99px;border:1px solid var(--border2);
  font-size:.68rem;color:var(--text2);cursor:pointer;background:var(--surface);
  transition:all var(--fast);text-decoration:none;
}
.chip:hover,.chip.active{background:var(--accent-bg);border-color:var(--accent);color:var(--accent)}
.chip.active{font-weight:600}

.styled-select{
  background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);
  padding:.18rem .5rem;font-size:.72rem;color:var(--text2);
  cursor:pointer;transition:border-color var(--fast);height:24px;
}
.styled-select:focus{outline:none;border-color:var(--accent)}

.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.55rem;padding:.85rem}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:.75rem;
  animation:card-in var(--slow) var(--ease) both;
}
.stat-number{font-size:1.5rem;color:var(--accent);line-height:1.1;margin-bottom:.12rem;font-weight:700}
.stat-label{font-size:.67rem;color:var(--text3)}
.stat-icon{font-size:1.1rem;margin-bottom:.3rem}

.annotation-card{
  background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--radius);padding:.5rem .7rem;margin-bottom:.35rem;
  border-left:2.5px solid var(--yellow);
}
.annotation-card.highlight{border-left-color:var(--yellow)}
.annotation-card.note{border-left-color:var(--blue)}
.annotation-card.bookmark{border-left-color:var(--green)}
.annotation-text{font-size:.76rem;color:var(--text2);line-height:1.45}
.annotation-meta{font-size:.63rem;color:var(--text3);margin-top:.22rem}

.file-drop{
  border:1.5px dashed var(--border2);border-radius:var(--radius);
  padding:1.1rem;text-align:center;cursor:pointer;
  transition:border-color var(--mid),background var(--mid);
}
.file-drop:hover{border-color:var(--accent);background:var(--accent-bg)}
.file-drop input[type=file]{display:none}
.file-drop .drop-ico{font-size:1.3rem;margin-bottom:.25rem;color:var(--text3)}
.file-drop .drop-label{font-size:.76rem;color:var(--text2)}
.file-drop .drop-sub{font-size:.67rem;color:var(--text3);margin-top:.12rem}

.file-attached{
  display:flex;align-items:center;gap:.55rem;
  padding:.45rem .65rem;background:var(--surface2);
  border:1px solid var(--border);border-radius:var(--radius);
}
.file-attached .file-ico{font-size:1rem}
.file-attached .file-name{font-size:.74rem;font-weight:500;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Login */
.login-page{min-height:100vh;background:var(--bg);display:grid;grid-template-columns:1fr 1fr}
.login-left{
  position:relative;
  background:linear-gradient(160deg,#0d3d34 0%,#1a6b5c 55%,#24856e 100%);
  display:flex;flex-direction:column;justify-content:center;
  padding:3rem;overflow:hidden;
}
.login-left::before{
  content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events:none;
}
.login-brand{font-family:var(--font-serif);font-size:2rem;color:#fff;margin-bottom:.35rem;position:relative;font-weight:700}
.login-brand span{display:inline-block;width:6px;height:6px;border-radius:50%;background:#a7f3d0;vertical-align:super;margin-left:2px}
.login-tagline{font-size:.84rem;color:rgba(255,255,255,.76);margin-bottom:2rem;max-width:280px;line-height:1.6;font-weight:300}
.login-features{display:flex;flex-direction:column;gap:.55rem;position:relative}
.login-feat{display:flex;align-items:center;gap:.6rem;font-size:.78rem;color:rgba(255,255,255,.82)}
.login-feat-ico{width:26px;height:26px;border-radius:5px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:.8rem;flex-shrink:0}
.login-dots{position:absolute;right:1.75rem;bottom:1.75rem;width:70px;height:70px;background-image:radial-gradient(circle,rgba(255,255,255,.26) 1px,transparent 1px);background-size:9px 9px;pointer-events:none}

.login-right{display:flex;flex-direction:column;justify-content:center;padding:3rem 2.5rem;background:var(--surface);border-left:3px solid var(--accent)}
.login-form-wrap{max-width:340px;width:100%;margin:0 auto}
.login-heading{font-family:var(--font-serif);font-size:1.35rem;color:var(--text);margin-bottom:.28rem;font-weight:700}
.login-sub{font-size:.78rem;color:var(--text3);margin-bottom:1.35rem}
.login-field{margin-bottom:.65rem}
.login-field label{display:block;font-size:.62rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--text3);margin-bottom:.28rem}
.login-field input{width:100%;background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);padding:.5rem .7rem;font-size:.82rem;color:var(--text);transition:border-color var(--mid),box-shadow var(--mid)}
.login-field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(26,107,92,.1)}
.login-field input::placeholder{color:var(--text3)}
.login-btn{width:100%;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);padding:.58rem;font-size:.84rem;font-weight:700;letter-spacing:.02em;cursor:pointer;margin-top:.85rem;transition:background var(--fast),box-shadow var(--fast)}
.login-btn:hover{background:var(--accent-d);box-shadow:var(--accent-glow)}
.login-demo-hint{text-align:center;margin-top:.85rem;font-size:.7rem;color:var(--text3);padding:.55rem;background:var(--surface2);border-radius:var(--radius);border:1px solid var(--border);line-height:1.52}
.login-demo-hint code{font-family:var(--font-mono);color:var(--accent);font-size:.74rem}

@media(max-width:900px){
  .app-shell{grid-template-columns:1fr;grid-template-areas:"topbar" "main"}
  .sidebar{display:none}
  .login-page{grid-template-columns:1fr}
  .login-left{display:none}
  .login-right{border-left:none;padding:1.75rem 1.1rem}
  .form-grid{grid-template-columns:1fr}
  .form-grid .span2{grid-column:span 1}
  .content-body{padding:.65rem}
  .content-header{padding:.45rem .65rem}
}

.material-symbols-outlined{
  font-size:13px;vertical-align:middle;color:inherit;
  font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 20;
}
.project-context-name{color:white !important;font-size:.88em}

.file-current{display:flex;align-items:center;gap:.5rem;padding:.45rem .6rem;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius)}
.file-current .file-ico{font-size:.95rem}
.file-current .file-name{font-size:.74rem;font-weight:500;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}