/* ============================================================
   Proofr Design System
   WeTransfer-inspired · Editorial · Light/Dark · Floating Panels
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ═══ LIGHT THEME (default) ═══ */
:root{
  --font-d:'DM Sans',sans-serif;
  --font-b:'Inter',-apple-system,sans-serif;
  --font-m:'JetBrains Mono',monospace;
  --sidebar-w:220px;--topbar-h:52px;
  --r:12px;--r-sm:8px;--r-lg:16px;--r-xl:24px;
  --bg:#FAFAF9;--bg-2:#F2F1EE;
  --sf:#FFF;--sf-h:#F8F8F6;--sf-in:#F3F2EF;
  --t1:#1A1A1A;--t2:#6E6E6E;--t3:#ABABAB;
  --bd:rgba(0,0,0,.06);--bd-s:rgba(0,0,0,.10);
  --ac:#406AFF;--ac-h:#3358E0;--ac-s:rgba(64,106,255,.06);
  --gn:#1A8D5F;--gn-s:rgba(26,141,95,.06);
  --am:#C27A00;--am-s:rgba(194,122,0,.06);
  --rd:#D93036;--rd-s:rgba(217,48,54,.06);
  --sb:#1A1A1A;--sb-t:rgba(255,255,255,.55);--sb-a:rgba(255,255,255,.1);
  --sb-acc:#7B93FF;--sb-bd:rgba(255,255,255,.06);
  --sh:0 1px 3px rgba(0,0,0,.04),0 0 0 1px rgba(0,0,0,.03);
  --sh-m:0 4px 16px rgba(0,0,0,.06),0 0 0 1px rgba(0,0,0,.03);
  --sh-l:0 12px 40px rgba(0,0,0,.07),0 0 0 1px rgba(0,0,0,.03);
  --sh-x:0 20px 60px rgba(0,0,0,.1),0 0 0 1px rgba(0,0,0,.04);
  --canvas:#E8E6E1;
}
/* ═══ DARK THEME ═══ */
[data-theme="dark"]{
  --bg:#111;--bg-2:#1A1A1A;
  --sf:#222;--sf-h:#2A2A2A;--sf-in:#1C1C1C;
  --t1:#EBEBEB;--t2:#888;--t3:#555;
  --bd:rgba(255,255,255,.07);--bd-s:rgba(255,255,255,.12);
  --ac:#7B93FF;--ac-h:#6B83F0;--ac-s:rgba(123,147,255,.1);
  --gn:#3DD68C;--gn-s:rgba(61,214,140,.1);
  --am:#FFB224;--am-s:rgba(255,178,36,.1);
  --rd:#FF6369;--rd-s:rgba(255,99,105,.1);
  --sb:#0D0D0D;--sb-a:rgba(255,255,255,.08);
  --sh:0 1px 3px rgba(0,0,0,.3),0 0 0 1px rgba(255,255,255,.04);
  --sh-m:0 4px 16px rgba(0,0,0,.4),0 0 0 1px rgba(255,255,255,.04);
  --sh-l:0 12px 40px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.04);
  --sh-x:0 20px 60px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.05);
  --canvas:#181818;
}

/* ═══ RESET ═══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);background:var(--bg);color:var(--t1);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5;transition:background .3s,color .3s}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bd-s);border-radius:3px}
a{color:var(--ac);text-decoration:none}

/* ═══ VIEW SWITCH ═══ */
.view{display:none;min-height:100vh}
.view.active{display:flex}

/* ═══ LOGIN ═══ */
#view-login{background:#0A0A0A;align-items:center;justify-content:center;position:relative;overflow:hidden}
.login-bg{position:absolute;inset:0;background:radial-gradient(ellipse 55% 45% at 25% 75%,rgba(64,106,255,.1) 0%,transparent 60%),radial-gradient(ellipse 45% 35% at 75% 20%,rgba(26,141,95,.06) 0%,transparent 60%);pointer-events:none}
.login-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.012) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.012) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 55% 55% at center,#000 20%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse 55% 55% at center,#000 20%,transparent 70%)}
.login-card{position:relative;width:100%;max-width:380px;padding:40px 36px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:var(--r-xl);backdrop-filter:blur(32px);-webkit-backdrop-filter:blur(32px);box-shadow:0 40px 80px rgba(0,0,0,.35);animation:fadeUp .6s ease both}
.login-logo{display:flex;align-items:center;gap:10px;margin-bottom:28px}
.login-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,#406AFF,#7B93FF);border-radius:9px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(64,106,255,.3)}
.login-logo-icon svg{color:#fff;width:18px;height:18px}
.login-logo-text{font-family:var(--font-d);font-size:22px;font-weight:800;color:#fff;letter-spacing:-.4px}
.login-title{font-family:var(--font-d);font-size:24px;font-weight:800;color:#fff;margin-bottom:6px;letter-spacing:-.2px}
.login-sub{font-size:13px;color:rgba(255,255,255,.35);margin-bottom:28px;line-height:1.7}
.btn-kc{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 20px;background:linear-gradient(135deg,#2196F3,#1565C0);border:none;border-radius:10px;color:#fff;font-family:var(--font-b);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 16px rgba(33,150,243,.25);text-decoration:none}
.btn-kc:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(33,150,243,.35);text-decoration:none}
.kc-logo-wrap{width:22px;height:22px;background:rgba(255,255,255,.15);border-radius:6px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.login-foot{margin-top:18px;text-align:center;padding-top:16px;border-top:1px solid rgba(255,255,255,.06);font-size:12px;color:rgba(255,255,255,.22)}
.login-foot a{color:#7B93FF;font-weight:600;cursor:pointer}

/* ═══ APP SHELL ═══ */
#view-app{flex-direction:column;background:var(--bg)}
.app-row{display:flex;flex:1}

/* ── Sidebar ── */
.sidebar{width:var(--sidebar-w);min-height:100vh;background:var(--sb);border-right:1px solid var(--sb-bd);display:flex;flex-direction:column;flex-shrink:0;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s cubic-bezier(.4,0,.2,1)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:99}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid var(--sb-bd)}
.logo-icon{width:30px;height:30px;background:linear-gradient(135deg,#406AFF,#7B93FF);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-icon svg{color:#fff;width:15px;height:15px}
.logo-text{font-family:var(--font-d);font-size:17px;font-weight:800;color:#fff;letter-spacing:-.4px}

.sidebar-search{padding:12px 12px 6px}
.search-box{display:flex;align-items:center;gap:7px;padding:7px 10px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.05);border-radius:var(--r-sm);transition:all .15s}
.search-box:focus-within{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.1)}
.search-box svg{color:rgba(255,255,255,.22);width:14px;height:14px;flex-shrink:0}
.search-box input{background:none;border:none;outline:none;color:#fff;font-family:var(--font-b);font-size:12px;flex:1}
.search-box input::placeholder{color:rgba(255,255,255,.16)}
.search-icon{display:none}

.sidebar-section{padding:6px 8px 2px}
.sidebar-section-label{font-size:10px;font-weight:700;color:rgba(255,255,255,.2);text-transform:uppercase;letter-spacing:.1em;padding:0 8px;margin-bottom:2px}
.nav-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--r-sm);cursor:pointer;transition:all .1s;margin-bottom:1px;color:var(--sb-t);font-size:12.5px;font-weight:500}
.nav-item svg{width:16px;height:16px;opacity:.45;flex-shrink:0}
.nav-item:hover{background:rgba(255,255,255,.04);color:rgba(255,255,255,.8)}
.nav-item:hover svg{opacity:.65}
.nav-item.active{background:var(--sb-a);color:#fff}
.nav-item.active svg{opacity:1;color:var(--sb-acc)}
.nav-icon{display:none}
.nav-badge{margin-left:auto;background:var(--ac);color:#fff;font-size:9px;font-weight:700;padding:1px 6px;border-radius:8px}
.sidebar-divider{height:1px;background:var(--sb-bd);margin:8px 12px}

.sidebar-bottom{margin-top:auto;padding:10px;border-top:1px solid var(--sb-bd)}
.user-card{display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:var(--r-sm);cursor:pointer;transition:all .1s}
.user-card:hover{background:rgba(255,255,255,.04)}
.user-avatar-wrap{position:relative;flex-shrink:0}
.user-avatar{width:30px;height:30px;background:linear-gradient(135deg,#406AFF,#7B93FF);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff}
.kc-online-dot{position:absolute;bottom:-1px;right:-1px;width:8px;height:8px;background:var(--gn);border-radius:50%;border:2px solid var(--sb)}
.user-info{flex:1;min-width:0}
.user-name{font-size:12px;font-weight:600;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-role{font-size:10px;color:rgba(255,255,255,.28)}
.user-menu-btn{color:rgba(255,255,255,.2);font-size:14px}

/* ── Topbar ── */
.topbar{height:var(--topbar-h);background:var(--sf);border-bottom:1px solid var(--bd);display:flex;align-items:center;padding:0 24px;gap:12px;position:sticky;top:0;z-index:50}
.topbar-hamburger{display:none;width:32px;height:32px;border:1px solid var(--bd);background:var(--sf);border-radius:var(--r-sm);cursor:pointer;align-items:center;justify-content:center;flex-shrink:0;color:var(--t1)}
.topbar-hamburger svg{width:16px;height:16px}
.topbar-title{font-family:var(--font-d);font-size:15px;font-weight:700;color:var(--t1)}
.topbar-search{display:flex;align-items:center;gap:7px;padding:6px 14px;background:var(--sf-in);border:1px solid var(--bd);border-radius:20px;width:220px;margin-left:auto;transition:all .15s}
.topbar-search:focus-within{border-color:var(--ac);box-shadow:0 0 0 3px var(--ac-s)}
.topbar-search svg{color:var(--t3);width:14px;height:14px;flex-shrink:0}
.topbar-search input{background:none;border:none;outline:none;font-family:var(--font-b);font-size:12px;color:var(--t1);flex:1}
.topbar-search input::placeholder{color:var(--t3)}
.topbar-right{display:flex;align-items:center;gap:5px}
.topbar-btn,.theme-toggle{width:32px;height:32px;border:1px solid var(--bd);background:var(--sf);border-radius:var(--r-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--t2);transition:all .1s;position:relative}
.topbar-btn svg,.theme-toggle svg{width:16px;height:16px}
.topbar-btn:hover,.theme-toggle:hover{background:var(--sf-in);color:var(--t1)}
.notif-dot{position:absolute;top:5px;right:5px;width:5px;height:5px;background:var(--rd);border-radius:50%;border:1.5px solid var(--sf)}

.btn-upload{display:flex;align-items:center;gap:5px;padding:6px 13px;background:var(--ac);border:none;border-radius:var(--r-sm);color:#fff;font-family:var(--font-b);font-size:12px;font-weight:600;cursor:pointer;transition:all .15s;white-space:nowrap}
.btn-upload svg{width:14px;height:14px}
.btn-upload:hover{background:var(--ac-h);transform:translateY(-1px);box-shadow:0 4px 12px rgba(64,106,255,.2)}

/* ── Main ── */
.main-content{flex:1;margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.page-content{flex:1;padding:24px 28px;display:none}
.page-content.active{display:block}
.page-content.flex-page{padding:0!important;max-width:none;height:calc(100vh - var(--topbar-h));display:none;flex-direction:column}
.page-content.flex-page.active{display:flex}

/* ═══ CARDS & COMPONENTS ═══ */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:24px}
.stat-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:18px 20px;display:flex;align-items:flex-start;gap:14px;box-shadow:var(--sh);transition:all .2s;cursor:default}
.stat-card:hover{box-shadow:var(--sh-m);transform:translateY(-2px)}
.stat-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-icon svg{width:18px;height:18px}
.stat-icon.blue{background:var(--ac-s);color:var(--ac)}
.stat-icon.teal{background:var(--ac-s);color:var(--ac)}
.stat-icon.green{background:var(--gn-s);color:var(--gn)}
.stat-icon.amber{background:var(--am-s);color:var(--am)}
.stat-value{font-family:var(--font-d);font-size:24px;font-weight:800;color:var(--t1);line-height:1;margin-bottom:3px}
.stat-label{font-size:12px;color:var(--t2);font-weight:500}
.stat-change{font-size:10px;font-weight:600;margin-top:3px;color:var(--t3)}

.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:24px}
.project-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;cursor:pointer;box-shadow:var(--sh);transition:all .2s}
.project-card:hover{box-shadow:var(--sh-l);transform:translateY(-3px);border-color:var(--ac-s)}
.project-card:hover .card-delete-btn{display:flex!important}
.card-delete-btn{position:absolute;top:7px;left:7px;width:26px;height:26px;border-radius:6px;border:none;background:#D93036;color:white;cursor:pointer;display:none;align-items:center;justify-content:center;transition:all .15s;z-index:2;box-shadow:0 2px 8px rgba(217,48,54,.3)}
.card-delete-btn:hover{background:#C12A2F;transform:scale(1.08)}
.card-delete-btn svg{width:13px;height:13px;pointer-events:none}
.project-thumb{height:130px;background:var(--bg-2);display:flex;align-items:center;justify-content:center;position:relative}
.project-thumb-pdf{width:54px;background:var(--sf);border-radius:4px;box-shadow:var(--sh-m);padding:7px 5px}
.project-thumb-label{position:absolute;top:7px;right:7px;background:var(--sf);border:1px solid var(--bd);border-radius:5px;font-size:9px;font-weight:700;padding:2px 6px;color:var(--ac)}
.project-thumb-color{position:absolute;bottom:0;left:0;right:0;height:2px}
.accent-blue{background:linear-gradient(90deg,var(--ac),#7B93FF)}
.accent-teal,.accent-green{background:linear-gradient(90deg,var(--gn),var(--ac))}
.accent-purple{background:linear-gradient(90deg,#8B5CF6,#EC4899)}
.accent-orange{background:linear-gradient(90deg,var(--am),var(--rd))}
.project-info{padding:12px}
.project-name{font-size:12.5px;font-weight:700;color:var(--t1);margin-bottom:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.project-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px}
.project-version{font-size:10px;font-weight:600;color:var(--ac);background:var(--ac-s);padding:1px 6px;border-radius:4px}
.project-date{font-size:10px;color:var(--t3)}
.project-footer{display:flex;align-items:center;justify-content:space-between}
.project-comments{display:flex;align-items:center;gap:4px;font-size:10px;color:var(--t2)}
.project-comments svg{width:12px;height:12px}
.status-badge{font-size:9px;font-weight:700;padding:2px 6px;border-radius:4px}
.status-review{background:var(--am-s);color:var(--am)}
.status-approved{background:var(--gn-s);color:var(--gn)}
.status-draft{background:var(--sf-in);color:var(--t3)}

.quick-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:24px}
.qa-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:16px;cursor:pointer;box-shadow:var(--sh);transition:all .2s}
.qa-card:hover{box-shadow:var(--sh-m);transform:translateY(-2px)}
.qa-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.qa-icon svg{width:17px;height:17px}
.qa-title{font-size:12.5px;font-weight:700;color:var(--t1);margin-bottom:2px}
.qa-sub{font-size:11px;color:var(--t3)}

.folders-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-bottom:24px}
.folder-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:14px;cursor:pointer;box-shadow:var(--sh);transition:all .2s}
.folder-card:hover{box-shadow:var(--sh-m);transform:translateY(-2px)}
.folder-card:hover .card-delete-btn{display:flex!important}
.folder-card .card-delete-btn{top:8px;right:8px;left:auto;width:24px;height:24px}
.folder-icon{margin-bottom:8px}
.folder-icon svg{width:22px;height:22px;color:var(--ac)}
.folder-name{font-size:12.5px;font-weight:700;color:var(--t1);margin-bottom:2px}
.folder-meta{font-size:10px;color:var(--t3)}

.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.section-title{font-family:var(--font-d);font-size:14px;font-weight:700;color:var(--t1)}
.section-action{font-size:11px;color:var(--ac);font-weight:600;cursor:pointer}

.activity-panel{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden}
.activity-list{display:flex;flex-direction:column}
.activity-item{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;transition:background .1s}
.activity-item:hover{background:var(--sf-in)}
.activity-item+.activity-item{border-top:1px solid var(--bd)}
.activity-avatar{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;flex-shrink:0}
.activity-content{flex:1;min-width:0}
.activity-text{font-size:12px;color:var(--t1);line-height:1.4}
.activity-text strong{font-weight:700}
.activity-time{font-size:10px;color:var(--t3)}
.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ═══ BUTTONS ═══ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 14px;border:none;border-radius:var(--r-sm);font-family:var(--font-b);font-size:12.5px;font-weight:600;cursor:pointer;transition:all .15s;white-space:nowrap;text-decoration:none}
.btn-primary{background:var(--ac);color:#fff}
.btn-primary:hover{background:var(--ac-h);transform:translateY(-1px)}
.btn-ghost{background:var(--sf);color:var(--t1);border:1px solid var(--bd)}
.btn-ghost:hover{background:var(--sf-in)}
.btn-danger{background:var(--rd);color:#fff}

/* ═══ FORMS ═══ */
.form-input,.modal-input{width:100%;padding:9px 12px;border:1.5px solid var(--bd);border-radius:var(--r-sm);font-family:var(--font-b);font-size:13px;color:var(--t1);background:var(--sf);outline:none;transition:all .15s}
.form-input:focus,.modal-input:focus{border-color:var(--ac);box-shadow:0 0 0 3px var(--ac-s)}
.form-input::placeholder,.modal-input::placeholder{color:var(--t3)}
.form-label{display:block;font-size:10px;font-weight:700;color:var(--t2);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}

.filter-btn{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600;cursor:pointer;border:1px solid var(--bd);background:var(--sf);color:var(--t2);transition:all .1s}
.filter-btn.active{background:var(--ac);color:#fff;border-color:var(--ac)}

.empty-state{display:flex;flex-direction:column;align-items:center;padding:40px 24px;text-align:center}
.empty-icon{margin-bottom:14px;opacity:.3}
.empty-icon svg{width:40px;height:40px;color:var(--t3)}
.empty-title{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:3px}
.empty-sub{font-size:12px;color:var(--t2)}

/* ═══ TOAST ═══ */
.toast-container{position:fixed;bottom:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:6px;pointer-events:none}
.toast{display:flex;align-items:center;gap:8px;padding:11px 16px;background:var(--sb);color:#fff;border-radius:var(--r);font-size:12.5px;font-weight:500;box-shadow:var(--sh-x);max-width:300px;pointer-events:all;opacity:0;transform:translateY(8px);transition:opacity .25s,transform .25s}
.toast.show{opacity:1;transform:translateY(0)}
.toast svg{width:15px;height:15px;flex-shrink:0}

/* ═══ VIEWER ═══ */
.viewer-toolbar{height:48px;background:var(--sf);border-bottom:1px solid var(--bd);display:flex;align-items:center;padding:0 14px;gap:4px;flex-shrink:0}
.viewer-toolbar-left{display:flex;align-items:center;gap:6px;flex-shrink:0}
.viewer-toolbar-center{flex:1;display:flex;align-items:center;justify-content:center;gap:4px}
.viewer-toolbar-right{display:flex;align-items:center;gap:5px;flex-shrink:0}
.viewer-project-title{font-family:var(--font-d);font-size:13px;font-weight:700;color:var(--t1)}

.tool-btn{width:32px;height:32px;border:1px solid var(--bd);background:var(--sf);border-radius:var(--r-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--t2);transition:all .1s;position:relative;flex-shrink:0}
.tool-btn svg{width:15px;height:15px}
.tool-btn:hover{background:var(--sf-in);color:var(--t1)}
.tool-btn.active{background:var(--ac);color:#fff;border-color:var(--ac)}

.page-control{display:flex;align-items:center;gap:4px;font-size:12px}
.page-input{width:38px;height:26px;text-align:center;border:1px solid var(--bd);border-radius:6px;background:var(--sf);font-family:var(--font-b);font-size:11px;font-weight:600;color:var(--t1);outline:none}
.zoom-label{font-size:11px;color:var(--t2);background:var(--sf-in);border:1px solid var(--bd);border-radius:6px;padding:2px 8px;min-width:42px;text-align:center;font-weight:600;user-select:none}
.version-badge-viewer{display:flex;align-items:center;gap:4px;padding:3px 10px;background:var(--ac-s);border:1px solid rgba(64,106,255,.1);border-radius:16px;font-size:10px;font-weight:600;color:var(--ac);cursor:pointer}
.version-badge-viewer svg{width:12px;height:12px}
.tool-separator{width:1px;height:16px;background:var(--bd);flex-shrink:0}

/* Color swatches */
.color-swatches{display:flex;align-items:center;gap:3px}
.color-swatch{width:20px;height:20px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all .12s;flex-shrink:0;padding:0}
.color-swatch:hover{transform:scale(1.15)}
.color-swatch.active{border-color:var(--t1);box-shadow:0 0 0 2px var(--sf)}

.viewer-body{flex:1;display:flex;overflow:hidden}
.pdf-area{flex:1;overflow:auto;display:flex;flex-direction:column;align-items:center;padding:20px;gap:16px;position:relative;background:var(--canvas)}
.pdf-page-wrapper{position:relative;box-shadow:var(--sh-x);border-radius:3px;overflow:visible}
.pdf-page-wrapper canvas{display:block}
.pdf-placeholder{width:600px;min-height:780px;background:var(--sf);border-radius:4px;padding:48px;position:relative}
.pdf-placeholder-inner{display:flex;flex-direction:column;gap:12px}

.annotation-pin{position:absolute;width:26px;height:26px;border-radius:50% 50% 50% 0;transform:rotate(-45deg);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .15s;z-index:20;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.annotation-pin:hover{transform:rotate(-45deg) scale(1.15)}
.annotation-pin .pin-inner{width:9px;height:9px;background:#fff;border-radius:50%;transform:rotate(45deg)}
.annotation-pin .pin-label{position:absolute;top:-28px;left:50%;transform:translateX(-50%) rotate(45deg);background:var(--sb);color:#fff;font-size:10px;font-weight:600;padding:3px 7px;border-radius:5px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s;max-width:160px;overflow:hidden;text-overflow:ellipsis}
.annotation-pin:hover .pin-label{opacity:1}
.draw-canvas{position:absolute;top:0;left:0;pointer-events:none;z-index:10;border-radius:4px}
.draw-canvas.active{pointer-events:all;cursor:crosshair}

/* Comment panel */
.comment-panel{width:300px;background:var(--sf);border-left:1px solid var(--bd);display:flex;flex-direction:column;flex-shrink:0}
.comment-panel-header{padding:13px 14px;border-bottom:1px solid var(--bd);display:flex;align-items:center;justify-content:space-between}
.comment-panel-title{font-family:var(--font-d);font-size:13px;font-weight:700}
.comment-count{background:var(--ac);color:#fff;font-size:9px;font-weight:700;padding:1px 6px;border-radius:8px}
.comment-filters{display:flex;gap:3px;padding:8px 12px;border-bottom:1px solid var(--bd)}
.comment-list{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:5px}
.comment-item{padding:10px;border:1px solid var(--bd);border-radius:10px;cursor:pointer;transition:all .1s}
.comment-item:hover{border-color:var(--ac-s);background:var(--ac-s)}
.comment-item.resolved{opacity:.4}
.comment-header{display:flex;align-items:center;gap:6px;margin-bottom:4px}
.comment-avatar{width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;color:#fff;flex-shrink:0}
.comment-meta{flex:1}
.comment-author{font-size:11px;font-weight:700;color:var(--t1)}
.comment-time{font-size:10px;color:var(--t3)}
.comment-text{font-size:12px;color:var(--t1);line-height:1.5}
.comment-pin-ref{font-size:10px;color:var(--t3);margin-top:3px}
.comment-resolve-btn{width:24px;height:24px;border:1px solid var(--bd);background:var(--sf);border-radius:6px;cursor:pointer;font-size:11px;display:flex;align-items:center;justify-content:center;margin-left:auto;transition:all .1s}
.comment-resolve-btn:hover{background:var(--sf-in)}
.comment-add-box{padding:10px;border-top:1px solid var(--bd)}
.comment-hint{font-size:10px;font-weight:600;color:var(--t2);margin-bottom:5px;display:flex;align-items:center;gap:4px}
.comment-hint svg{width:13px;height:13px}
.comment-input-wrap{border:1px solid var(--bd);border-radius:10px;overflow:hidden}
.comment-textarea{width:100%;min-height:52px;padding:9px 11px;border:none;outline:none;font-family:var(--font-b);font-size:12px;color:var(--t1);resize:none;background:var(--sf)}
.comment-textarea::placeholder{color:var(--t3)}
.comment-input-footer{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;background:var(--sf-in);border-top:1px solid var(--bd)}
.comment-submit{padding:4px 12px;background:var(--ac);color:#fff;border:none;border-radius:6px;font-family:var(--font-b);font-size:11px;font-weight:700;cursor:pointer;transition:all .1s}
.comment-submit:hover{background:var(--ac-h)}

/* Version panel */
.version-panel{position:fixed;right:300px;top:114px;width:240px;background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);box-shadow:var(--sh-x);z-index:200;display:none;overflow:hidden}
.version-panel.open{display:block;animation:slideInR .15s ease}
.version-panel-header{padding:12px 14px;border-bottom:1px solid var(--bd);font-family:var(--font-d);font-size:13px;font-weight:700}
.version-list-inner{padding:5px}
.version-item{display:flex;align-items:center;gap:8px;padding:7px;border-radius:var(--r-sm);cursor:pointer;transition:all .1s}
.version-item:hover{background:var(--sf-in)}
.version-item.current{background:var(--ac-s)}
.v-badge{width:28px;height:28px;background:var(--ac);border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;flex-shrink:0}
.v-badge.old{background:var(--sf-in);color:var(--t3)}
.v-info{flex:1}
.v-name{font-size:11px;font-weight:700;color:var(--t1)}
.v-date{font-size:10px;color:var(--t3)}
.v-tick{color:var(--ac);font-size:12px}
.version-panel-footer{padding:8px 12px;border-top:1px solid var(--bd)}

/* Compare */
.compare-bar{height:48px;background:var(--sf);border-bottom:1px solid var(--bd);display:flex;align-items:center;padding:0 14px;gap:12px;flex-shrink:0}
.compare-bar-title{font-family:var(--font-d);font-size:13px;font-weight:700}
.compare-versions{display:flex;align-items:center;gap:6px;margin-left:auto}
.compare-version-tag{padding:3px 10px;border-radius:14px;font-size:10px;font-weight:600}
.cvt-left{background:var(--ac-s);color:var(--ac)}
.cvt-right{background:var(--gn-s);color:var(--gn)}
.compare-vs{font-size:10px;color:var(--t3);font-weight:600}
.compare-body{flex:1;display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.compare-pane{overflow:auto;background:var(--canvas);display:flex;flex-direction:column;align-items:center;padding:20px;gap:12px}
.compare-pane:first-child{border-right:2px solid var(--ac-s)}
.compare-pane-label{align-self:stretch;text-align:center;padding:6px;font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;border-radius:6px}
.compare-pane-label.v1{background:var(--ac-s);color:var(--ac)}
.compare-pane-label.v2{background:var(--gn-s);color:var(--gn)}
.sync-toggle{width:28px;height:14px;border-radius:7px;cursor:pointer;position:relative;transition:background .2s;flex-shrink:0}
.sync-knob{position:absolute;top:2px;right:2px;width:10px;height:10px;background:#fff;border-radius:50%;transition:all .2s}

/* ═══ REVIEWER ═══ */
#view-reviewer{background:var(--bg);flex-direction:column;min-height:100vh}
.reviewer-topbar{height:52px;background:var(--sb);display:flex;align-items:center;padding:0 20px;gap:10px;flex-shrink:0}
.reviewer-brand{display:flex;align-items:center;gap:8px}
.reviewer-brand-icon{width:28px;height:28px;background:linear-gradient(135deg,#406AFF,#7B93FF);border-radius:7px;display:flex;align-items:center;justify-content:center}
.reviewer-brand-icon svg{width:14px;height:14px;color:#fff}
.reviewer-brand-name{font-family:var(--font-d);font-size:16px;font-weight:800;color:#fff}
.reviewer-divider{width:1px;height:18px;background:rgba(255,255,255,.08)}
.reviewer-project-name{font-size:13px;color:rgba(255,255,255,.4);font-weight:500}
.reviewer-project-name strong{color:#fff;font-weight:700}
.reviewer-topbar-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.reviewer-name-badge{display:flex;align-items:center;gap:5px;padding:5px 12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07);border-radius:18px;font-size:11px;color:rgba(255,255,255,.45);font-weight:500}
.reviewer-name-badge strong{color:#fff}
.reviewer-body{flex:1;display:flex;overflow:hidden}
.reviewer-toolbar-v{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px;background:var(--sf);border-right:1px solid var(--bd);flex-shrink:0;width:52px}
.rtool-label{font-size:9px;font-weight:700;color:var(--t3);text-transform:uppercase;letter-spacing:.08em;margin:4px 0 2px}
.h-separator{height:1px;width:100%;background:var(--bd);margin:6px 0}

/* Name modal */
.name-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.name-modal{background:var(--sf);border-radius:var(--r-xl);padding:36px;width:100%;max-width:360px;box-shadow:var(--sh-x);animation:scaleIn .3s cubic-bezier(.34,1.56,.64,1)}
.name-modal-icon{width:44px;height:44px;background:linear-gradient(135deg,#406AFF,#7B93FF);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.name-modal-icon svg{width:22px;height:22px;color:#fff}
.name-modal h2{font-family:var(--font-d);font-size:20px;font-weight:800;margin-bottom:5px;color:var(--t1)}
.name-modal p{font-size:13px;color:var(--t2);margin-bottom:22px;line-height:1.6}
.name-input{width:100%;padding:10px 13px;border:1.5px solid var(--bd);border-radius:var(--r-sm);font-family:var(--font-b);font-size:13px;outline:none;transition:all .15s;margin-bottom:12px;color:var(--t1);background:var(--sf)}
.name-input:focus{border-color:var(--ac);box-shadow:0 0 0 3px var(--ac-s)}
.btn-start-reviewing{width:100%;padding:11px;background:var(--ac);border:none;border-radius:var(--r-sm);color:#fff;font-family:var(--font-b);font-size:13px;font-weight:700;cursor:pointer;transition:all .15s}
.btn-start-reviewing:hover{background:var(--ac-h)}
.name-modal-note{margin-top:10px;text-align:center;font-size:10px;color:var(--t3)}

/* ═══ MODALS ═══ */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.35);display:none;align-items:center;justify-content:center;z-index:500;backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.modal-overlay.open,.modal-overlay.active{display:flex;animation:fadeIn .12s}
.modal{background:var(--sf);border-radius:var(--r-xl);width:100%;max-width:440px;overflow:hidden;box-shadow:var(--sh-x);animation:scaleIn .2s cubic-bezier(.34,1.56,.64,1)}
.modal-sm{max-width:340px}
.modal-header{padding:16px 20px 12px;border-bottom:1px solid var(--bd);display:flex;align-items:center;justify-content:space-between}
.modal-title{font-family:var(--font-d);font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px;color:var(--t1)}
.modal-title svg{width:17px;height:17px;color:var(--ac)}
.modal-close{width:26px;height:26px;border:none;background:var(--sf-in);border-radius:6px;cursor:pointer;color:var(--t2);display:flex;align-items:center;justify-content:center;transition:all .1s}
.modal-close:hover{background:var(--bd);color:var(--t1)}
.modal-close svg{width:14px;height:14px}
.modal-body{padding:20px}
.modal-footer{padding:12px 20px;border-top:1px solid var(--bd);display:flex;justify-content:flex-end;gap:6px}
.modal-form{margin-top:14px;display:flex;flex-direction:column;gap:10px}

.upload-zone{border:2px dashed var(--bd-s);border-radius:var(--r);padding:28px;text-align:center;cursor:pointer;transition:all .15s;background:var(--sf-in)}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--ac);background:var(--ac-s)}
.upload-icon{margin-bottom:10px}
.upload-icon svg{width:32px;height:32px;color:var(--ac)}
.upload-title{font-size:13px;font-weight:700;color:var(--t1);margin-bottom:2px}
.upload-sub{font-size:11px;color:var(--t2)}
.upload-sub span{color:var(--ac);font-weight:600}
.upload-hint{margin-top:6px;font-size:10px;color:var(--t3)}
.upload-hidden{display:none}
.upload-progress{margin-top:8px}

.file-uploaded-info{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--gn-s);border:1px solid rgba(26,141,95,.1);border-radius:10px;margin-top:8px}
.file-icon svg{width:18px;height:18px;color:var(--gn)}
.file-details{flex:1}
.file-name{font-size:12px;font-weight:600;color:var(--t1)}
.file-size{font-size:10px;color:var(--t2)}
.file-remove{color:var(--t3);cursor:pointer;transition:color .1s;font-size:14px}
.file-remove:hover{color:var(--rd)}

.progress-bar{height:3px;background:var(--sf-in);border-radius:2px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--ac),var(--gn));border-radius:2px;transition:width .3s}
.progress-label{font-size:10px;color:var(--t2);margin-top:3px}

.share-link-box{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--sf-in);border:1px solid var(--bd);border-radius:var(--r-sm)}
.share-link-text{flex:1;font-size:11px;color:var(--ac);font-family:var(--font-m);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.copy-btn{padding:4px 10px;background:var(--ac);color:#fff;border:none;border-radius:5px;font-size:10px;font-weight:700;cursor:pointer;transition:all .1s}
.copy-btn:hover{background:var(--ac-h)}

/* Share modal components */
.share-notice{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;background:var(--gn-s);border:1px solid rgba(26,141,95,.1);border-radius:var(--r-sm);margin-bottom:16px}
.share-notice-title{font-size:12.5px;font-weight:700;color:var(--t1);margin-bottom:2px}
.share-notice-sub{font-size:11.5px;color:var(--t2);line-height:1.5}
.share-stats{display:flex;gap:10px;margin-top:14px}
.share-stat{flex:1;padding:10px 12px;background:var(--sf-in);border:1px solid var(--bd);border-radius:var(--r-sm);text-align:center}
.share-stat-value{font-family:var(--font-d);font-size:18px;font-weight:700;color:var(--t1)}
.share-stat-label{font-size:10px;color:var(--t2);margin-top:2px}
.share-actions{display:flex;gap:8px;margin-top:14px}
.share-actions .btn{flex:1;font-size:11.5px}

/* Compare sync */
.compare-sync{margin-left:16px;display:flex;gap:8px;align-items:center}
.compare-sync-label{font-size:12px;color:var(--t2);font-weight:500}

/* Comment footer hint */
.comment-footer-hint{font-size:10px;color:var(--t3)}

.pin-location-info{font-size:11px;color:var(--t2);margin-bottom:8px;padding:7px 10px;background:var(--sf-in);border-radius:8px}
.pin-comment-area{width:100%;min-height:72px;padding:9px 11px;border:1.5px solid var(--bd);border-radius:10px;font-family:var(--font-b);font-size:12.5px;color:var(--t1);outline:none;resize:none;transition:all .15s;background:var(--sf)}
.pin-comment-area:focus{border-color:var(--ac);box-shadow:0 0 0 3px var(--ac-s)}

/* ═══ RESPONSIVE ═══ */
@media(max-width:1100px){.stats-row,.quick-actions{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}}
@media(max-width:900px){
  .comment-panel{display:none}
  .comment-panel.mobile-open{display:flex;position:fixed;bottom:0;left:0;right:0;height:60vh;border-top:1px solid var(--bd);border-radius:var(--r-xl) var(--r-xl) 0 0;z-index:300;animation:slideUpP .25s ease;box-shadow:0 -8px 30px rgba(0,0,0,.08)}
  .comment-panel-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:299}
  .comment-panel-backdrop.active{display:block}
  .mobile-comments-btn{display:flex!important}
  .reviewer-toolbar-v{display:none}
  .reviewer-tool-strip{display:flex!important}
  .version-panel{right:12px;top:auto;bottom:66px}
}
@keyframes slideUpP{from{transform:translateY(100%)}to{transform:translateY(0)}}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);z-index:101}
  .sidebar.mobile-open{transform:translateX(0)}
  .sidebar-overlay{display:block;opacity:0;pointer-events:none;transition:opacity .3s}
  .sidebar-overlay.active{opacity:1;pointer-events:all}
  .main-content{margin-left:0}
  .topbar{padding:0 14px}
  .topbar-hamburger{display:flex}
  .topbar-search{display:none}
  .stats-row,.quick-actions{grid-template-columns:1fr 1fr;gap:8px}
  .projects-grid{grid-template-columns:1fr 1fr}
  .page-content{padding:14px;padding-bottom:70px}
  .bottom-nav{display:flex}
  .login-card{padding:28px 22px;margin:14px}
  .compare-body{grid-template-columns:1fr}
  .reviewer-project-name,.reviewer-divider{display:none}
  .viewer-toolbar{gap:3px;padding:0 8px}
}
@media(max-width:480px){
  .stat-value{font-size:20px}
  .projects-grid,.quick-actions,.folders-grid{grid-template-columns:1fr 1fr}
  .login-card{margin:0;border-radius:0;min-height:100vh;display:flex;flex-direction:column;justify-content:center}
  .pdf-area{padding:8px}
  .modal{border-radius:var(--r-lg) var(--r-lg) 0 0;align-self:flex-end;max-width:100%}
  .modal-overlay{align-items:flex-end}
}
@media print{.sidebar,.topbar,.viewer-toolbar,.comment-panel,.version-panel,.modal-overlay,.toast-container,.bottom-nav,.sidebar-overlay,.mobile-comments-btn,.reviewer-tool-strip,.editor-tool-strip{display:none!important}.main-content{margin-left:0}.page-content{padding:0}}

/* Mobile components */
.mobile-comments-btn{display:none;position:fixed;bottom:66px;right:12px;z-index:290;align-items:center;gap:5px;padding:9px 14px;background:var(--ac);color:#fff;border:none;border-radius:20px;font-family:var(--font-b);font-size:11px;font-weight:700;cursor:pointer;box-shadow:0 4px 16px rgba(64,106,255,.25);transition:all .15s}
.mobile-comments-btn:hover{transform:translateY(-2px)}
.mobile-comments-btn .btn-badge{background:#fff;color:var(--ac);font-size:9px;font-weight:800;padding:1px 5px;border-radius:7px}
.comment-panel-drag-handle{display:none;width:100%;padding:8px 0 2px;justify-content:center;flex-shrink:0;cursor:grab}
.comment-panel-drag-handle-bar{width:30px;height:3px;background:var(--bd-s);border-radius:2px}
@media(max-width:900px){.comment-panel-drag-handle{display:flex}}

.reviewer-tool-strip,.editor-tool-strip{display:none;position:fixed;bottom:0;left:0;right:0;height:50px;background:var(--sf);border-top:1px solid var(--bd);z-index:250;align-items:center;justify-content:center;gap:5px;padding:0 10px}
.reviewer-tool-strip .tool-label,.editor-tool-strip .tool-label{font-size:9px;color:var(--t3);text-transform:uppercase;letter-spacing:.1em;font-weight:700;margin-right:3px}
.editor-tool-strip .tool-btn.active,.reviewer-tool-strip .tool-btn.active{background:var(--ac);color:#fff;border-color:var(--ac)}
@media(max-width:900px){.editor-tool-strip{display:flex}.desktop-tool{display:none!important}#page-viewer .pdf-area,#view-reviewer .pdf-area{padding-bottom:60px}.mobile-comments-btn{bottom:58px}.viewer-toolbar{gap:3px;padding:0 8px}.viewer-toolbar-center{display:none}}
@media(max-width:480px){.editor-tool-strip,.reviewer-tool-strip{gap:3px;padding:0 5px}.editor-tool-strip .tool-btn,.reviewer-tool-strip .tool-btn{width:28px;height:28px;font-size:11px}}

.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:50px;background:var(--sb);border-top:1px solid rgba(255,255,255,.05);z-index:200}
.bottom-nav-inner{display:flex;height:100%}
.bottom-nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;color:rgba(255,255,255,.3);font-size:9px;font-weight:600}
.bottom-nav-item.active{color:var(--sb-acc)}

/* Page headings */
.page-heading{font-family:var(--font-d);font-size:24px;font-weight:800;margin-bottom:4px;letter-spacing:-.3px;color:var(--t1)}
.page-sub{font-size:13px;color:var(--t2);margin-bottom:24px}
.dashboard-heading{font-family:var(--font-d);font-size:26px;font-weight:800;margin-bottom:4px;letter-spacing:-.3px;color:var(--t1)}
.dashboard-sub{font-size:14px;color:var(--t2)}
.dashboard-welcome{margin-bottom:28px}

/* Selects */
.filter-select{padding:6px 10px;border:1px solid var(--bd);border-radius:6px;font-family:var(--font-b);font-size:12px;background:var(--sf);color:var(--t1);outline:none;cursor:pointer}
.filter-select:focus{border-color:var(--ac)}

/* Page control dividers */
.page-divider{color:var(--t3)}
.page-total{color:var(--t2)}

/* User menu item */
.user-menu-item{display:flex;align-items:center;gap:8px;padding:10px 14px;cursor:pointer;font-size:12.5px;font-weight:500;color:var(--t1);transition:background .1s}
.user-menu-item:hover{background:var(--sf-in)}

/* ═══ ANIMATIONS ═══ */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:scale(1)}}
@keyframes slideInR{from{opacity:0;transform:translateX(8px)}to{opacity:1;transform:translateX(0)}}
@keyframes spin{to{transform:rotate(360deg)}}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}