/* ============================================================
   PM430 Archive — Light, refined, modern archive UI
   ============================================================ */

:root{
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #fbfbfe;
  --ink: #0f1222;
  --ink-2: #3a3f55;
  --muted: #8a90a6;
  --line: #ecedf4;
  --line-2: #e4e6f0;

  --brand: #5b5bf0;
  --brand-2: #8a5cf6;
  --brand-soft: #eeeefe;
  --accent: #16a5a3;

  --blue:#3b82f6; --violet:#8b5cf6; --green:#10b981; --amber:#f59e0b;
  --red:#ef4444;

  --shadow-sm: 0 1px 2px rgba(16,18,34,.05), 0 1px 3px rgba(16,18,34,.04);
  --shadow-md: 0 8px 24px rgba(20,24,55,.07), 0 2px 6px rgba(20,24,55,.04);
  --shadow-lg: 0 24px 60px rgba(24,28,64,.14), 0 8px 20px rgba(24,28,64,.07);

  --r-sm: 10px; --r-md: 16px; --r-lg: 22px; --r-xl: 28px;

  --font: 'Inter', system-ui, -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --display: 'Outfit', var(--font);
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
input,select{ font-family:inherit; }
[hidden]{ display:none !important; }

/* ---------------- Brand mark ---------------- */
.brand-mark{
  width:46px; height:46px; border-radius:14px;
  display:grid; place-items:center; color:#fff; font-size:19px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 10px 22px rgba(91,91,240,.35);
  flex:none;
}
.brand-mark.sm{ width:40px; height:40px; border-radius:12px; font-size:16px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family:var(--display); font-weight:700; font-size:1.02rem; letter-spacing:-.2px; }
.brand-text small{ color:var(--muted); font-size:.74rem; letter-spacing:.3px; }

/* ============================================================
   AUTH SCREEN
   ============================================================ */
.auth-screen{
  min-height:100vh; position:relative; overflow:hidden;
  display:grid; place-items:center; padding:24px;
  background: radial-gradient(1200px 600px at 80% -10%, #eef0ff 0%, transparent 60%),
              radial-gradient(900px 500px at -10% 110%, #f3edff 0%, transparent 55%),
              var(--bg);
}
.auth-bg{ position:absolute; inset:0; z-index:0; }
.auth-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(20,24,55,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20,24,55,.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 40%, #000 0%, transparent 72%);
}
.orb{ position:absolute; border-radius:50%; filter:blur(46px); opacity:.55; }
.orb-1{ width:380px; height:380px; top:-90px; right:-70px; background:radial-gradient(circle,#a9b0ff,#dfe2ff 70%); }
.orb-2{ width:320px; height:320px; bottom:-100px; left:-60px; background:radial-gradient(circle,#d8b9ff,#efe5ff 70%); }
.orb-3{ width:240px; height:240px; bottom:30%; right:14%; background:radial-gradient(circle,#b6f2ec,#e6fffb 70%); opacity:.4; animation:float 9s ease-in-out infinite; }
@keyframes float{ 0%,100%{ transform:translateY(0) } 50%{ transform:translateY(-22px) } }

.auth-card{
  position:relative; z-index:1;
  width:100%; max-width:430px;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  border:1px solid rgba(255,255,255,.7);
  box-shadow: var(--shadow-lg);
  border-radius: var(--r-xl);
  padding: 38px 38px 28px;
  animation: rise .6s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes rise{ from{ opacity:0; transform:translateY(18px) scale(.985) } to{ opacity:1; transform:none } }

.auth-brand{ display:flex; align-items:center; gap:12px; margin-bottom:26px; }
.auth-head h1{ font-family:var(--display); font-size:1.72rem; font-weight:700; letter-spacing:-.6px; margin:0 0 6px; }
.auth-head p{ margin:0 0 22px; color:var(--muted); font-size:.92rem; }

.auth-form{ display:flex; flex-direction:column; gap:16px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field-label{ font-size:.82rem; font-weight:600; color:var(--ink-2); }
.field-control{ position:relative; display:flex; align-items:center; }
.field-icon{ position:absolute; left:15px; color:var(--muted); font-size:.9rem; }
.field-control input{
  width:100%; padding:14px 46px 14px 42px;
  border:1.5px solid var(--line-2); border-radius:14px;
  background:#fff; color:var(--ink); font-size:.98rem;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.field-control input::placeholder{ color:#c4c8d8; letter-spacing:2px; }
.field-control input:focus{
  outline:none; border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(91,91,240,.14);
}
.toggle-pw{
  position:absolute; right:8px; width:32px; height:32px; border:none; background:transparent;
  color:var(--muted); border-radius:8px; transition:.2s;
}
.toggle-pw:hover{ color:var(--brand); background:var(--brand-soft); }

.remember{ display:flex; align-items:center; gap:9px; font-size:.86rem; color:var(--ink-2); user-select:none; cursor:pointer; }
.remember input{ width:16px; height:16px; accent-color:var(--brand); cursor:pointer; }

.auth-error{
  display:flex; align-items:center; gap:8px; margin:0;
  font-size:.84rem; color:var(--red);
  background:#fef2f2; border:1px solid #fecaca; padding:10px 12px; border-radius:10px;
  animation: shake .4s;
}
@keyframes shake{ 0%,100%{transform:translateX(0)} 25%{transform:translateX(-5px)} 75%{transform:translateX(5px)} }

.btn-primary{
  margin-top:4px;
  display:flex; align-items:center; justify-content:center; gap:10px;
  padding:14px; border:none; border-radius:14px; color:#fff; font-size:.98rem; font-weight:600;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 12px 26px rgba(91,91,240,.32);
  transition: transform .15s, box-shadow .25s, filter .2s;
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 18px 34px rgba(91,91,240,.42); }
.btn-primary:active{ transform:translateY(0); }
.btn-primary .fa-arrow-right-long{ transition:transform .2s; }
.btn-primary:hover .fa-arrow-right-long{ transform:translateX(4px); }

.auth-foot{
  display:flex; align-items:center; justify-content:center; gap:8px;
  margin-top:24px; padding-top:18px; border-top:1px solid var(--line);
  color:var(--muted); font-size:.78rem;
}

/* ============================================================
   ARCHIVE SCREEN
   ============================================================ */
.archive-screen{ display:grid; grid-template-columns:264px 1fr; min-height:100vh; }

/* Sidebar */
.sidebar{
  background:var(--surface); border-right:1px solid var(--line);
  padding:22px 18px; display:flex; flex-direction:column; gap:22px;
  position:sticky; top:0; height:100vh;
}
.sidebar-brand{ display:flex; align-items:center; gap:11px; padding:4px 6px 14px; border-bottom:1px solid var(--line); }
.side-nav{ display:flex; flex-direction:column; gap:3px; }
.side-label{ font-size:.7rem; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--muted); padding:0 12px 8px; }
.side-item{
  display:flex; align-items:center; gap:11px; padding:11px 13px; border-radius:11px;
  color:var(--ink-2); font-size:.9rem; font-weight:500; transition:.18s;
}
.side-item i{ width:18px; text-align:center; color:var(--muted); transition:.18s; }
.side-item:hover{ background:var(--surface-2); color:var(--ink); }
.side-item.active{ background:var(--brand-soft); color:var(--brand); font-weight:600; }
.side-item.active i{ color:var(--brand); }

.side-storage{ margin-top:auto; background:var(--surface-2); border:1px solid var(--line); border-radius:var(--r-md); padding:15px; }
.storage-head{ display:flex; justify-content:space-between; align-items:baseline; font-size:.8rem; color:var(--ink-2); margin-bottom:10px; }
.storage-num{ font-family:var(--display); font-weight:700; font-size:1.05rem; color:var(--ink); }
.storage-num small{ font-weight:500; color:var(--muted); font-size:.72rem; }
.storage-bar{ height:7px; border-radius:99px; background:var(--line-2); overflow:hidden; }
.storage-bar span{ display:block; height:100%; border-radius:99px; background:linear-gradient(90deg,var(--brand),var(--brand-2)); }
.storage-sub{ display:block; margin-top:8px; color:var(--muted); font-size:.7rem; }

.side-logout{
  display:flex; align-items:center; gap:10px; padding:12px 13px; border:1px solid var(--line-2);
  background:#fff; border-radius:11px; color:var(--ink-2); font-size:.88rem; font-weight:500; transition:.18s;
}
.side-logout:hover{ border-color:#fecaca; background:#fef2f2; color:var(--red); }

/* Main area */
.main-area{ display:flex; flex-direction:column; min-width:0; }
.topbar{
  position:sticky; top:0; z-index:20;
  display:flex; align-items:center; gap:16px;
  padding:14px 28px; background:rgba(246,247,251,.78);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.menu-toggle{ display:none; width:40px; height:40px; border:1px solid var(--line-2); background:#fff; border-radius:11px; color:var(--ink-2); }
.search-box{ position:relative; flex:1; max-width:520px; display:flex; align-items:center; }
.search-box i{ position:absolute; left:15px; color:var(--muted); font-size:.9rem; }
.search-box input{
  width:100%; padding:11px 44px 11px 42px; border:1.5px solid var(--line-2); border-radius:12px;
  background:#fff; font-size:.92rem; transition:.2s;
}
.search-box input:focus{ outline:none; border-color:var(--brand); box-shadow:0 0 0 4px rgba(91,91,240,.12); }
.search-box kbd{
  position:absolute; right:12px; font-family:var(--font); font-size:.7rem; color:var(--muted);
  background:var(--surface-2); border:1px solid var(--line-2); border-bottom-width:2px; border-radius:6px; padding:2px 7px;
}
.topbar-actions{ display:flex; align-items:center; gap:12px; margin-left:auto; }
.icon-btn{ width:40px; height:40px; border:1px solid var(--line-2); background:#fff; border-radius:11px; color:var(--ink-2); transition:.18s; }
.icon-btn:hover{ color:var(--brand); border-color:var(--brand); }
.icon-btn.spin i{ animation:spin .6s linear; }
@keyframes spin{ to{ transform:rotate(360deg) } }
.user-chip{ display:flex; align-items:center; gap:9px; padding:5px 12px 5px 5px; background:#fff; border:1px solid var(--line-2); border-radius:99px; }
.avatar{ width:30px; height:30px; border-radius:50%; display:grid; place-items:center; color:#fff; font-size:.72rem; font-weight:700; background:linear-gradient(135deg,var(--brand),var(--brand-2)); }
.user-name{ font-size:.86rem; font-weight:500; color:var(--ink-2); }

/* Content */
.content{ padding:28px; max-width:1280px; width:100%; margin:0 auto; }
.page-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:18px; flex-wrap:wrap; margin-bottom:22px; }
.crumbs{ display:flex; align-items:center; gap:8px; font-size:.8rem; color:var(--muted); margin-bottom:6px; }
.crumbs a{ color:var(--muted); transition:.15s; }
.crumbs a:hover{ color:var(--brand); }
.crumbs a:last-child{ color:var(--ink-2); font-weight:500; }
.crumbs span.sep::before{ content:"›"; color:var(--line-2); }
#page-title{ font-family:var(--display); font-size:1.6rem; font-weight:700; letter-spacing:-.6px; margin:0 0 6px; }
.page-sub{ margin:0; color:var(--muted); font-size:.9rem; }

.view-tools{ display:flex; align-items:center; gap:10px; }
.sort-select{ position:relative; display:flex; align-items:center; }
.sort-select i{ position:absolute; left:13px; color:var(--muted); font-size:.82rem; pointer-events:none; }
.sort-select select{
  appearance:none; padding:10px 34px 10px 34px; border:1.5px solid var(--line-2); border-radius:11px;
  background:#fff; font-size:.86rem; color:var(--ink-2); cursor:pointer;
}
.sort-select::after{ content:"\f078"; font-family:"Font Awesome 6 Free"; font-weight:900; font-size:.62rem; color:var(--muted); position:absolute; right:13px; pointer-events:none; }
.sort-select select:focus{ outline:none; border-color:var(--brand); }
.view-toggle{ display:flex; background:#fff; border:1.5px solid var(--line-2); border-radius:11px; padding:3px; gap:2px; }
.vt-btn{ width:36px; height:32px; border:none; background:transparent; border-radius:8px; color:var(--muted); transition:.16s; }
.vt-btn.active{ background:var(--brand-soft); color:var(--brand); }

/* Stats */
.stat-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:26px; }
.stat-card{ display:flex; align-items:center; gap:14px; background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); padding:16px 18px; box-shadow:var(--shadow-sm); transition:.2s; }
.stat-card:hover{ box-shadow:var(--shadow-md); transform:translateY(-2px); }
.stat-ic{ width:44px; height:44px; border-radius:13px; display:grid; place-items:center; font-size:1.05rem; flex:none; }
.stat-ic.blue{ background:#eaf2ff; color:var(--blue); }
.stat-ic.violet{ background:#f3edff; color:var(--violet); }
.stat-ic.green{ background:#e7f9f1; color:var(--green); }
.stat-ic.amber{ background:#fff5e6; color:var(--amber); }
.stat-card strong{ display:block; font-family:var(--display); font-size:1.32rem; font-weight:700; line-height:1.1; letter-spacing:-.4px; }
.stat-card small{ color:var(--muted); font-size:.78rem; }

/* Items — GRID */
.items-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(212px,1fr)); gap:16px; }
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md);
  padding:18px; box-shadow:var(--shadow-sm); transition:.22s; cursor:pointer; position:relative;
  animation: pop .35s ease both;
}
@keyframes pop{ from{ opacity:0; transform:translateY(8px) } to{ opacity:1; transform:none } }
.card:hover{ box-shadow:var(--shadow-lg); transform:translateY(-4px); border-color:var(--line-2); }
.card-top{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:18px; }
.card-ic{ width:48px; height:48px; border-radius:14px; display:grid; place-items:center; font-size:1.25rem; }
.card-menu{ width:30px; height:30px; border:none; background:transparent; color:var(--muted); border-radius:8px; opacity:0; transition:.18s; }
.card:hover .card-menu{ opacity:1; }
.card-menu:hover{ background:var(--surface-2); color:var(--ink); }
.card-name{ font-size:.94rem; font-weight:600; color:var(--ink); margin:0 0 5px; word-break:break-word; line-height:1.35; }
.card-meta{ display:flex; align-items:center; gap:8px; color:var(--muted); font-size:.76rem; }
.card-meta .dot{ width:3px; height:3px; border-radius:50%; background:var(--line-2); }
.tag-folder{ position:absolute; top:16px; right:16px; font-size:.66rem; font-weight:600; color:var(--brand); background:var(--brand-soft); padding:3px 9px; border-radius:99px; }

/* file type colors */
.ic-folder{ background:linear-gradient(135deg,#eef0ff,#e3e6ff); color:var(--brand); }
.ic-pdf{ background:#fdeaea; color:#e2493a; }
.ic-doc{ background:#eaf1ff; color:#2a6fdf; }
.ic-xls{ background:#e7f7ee; color:#1f9d5b; }
.ic-ppt{ background:#fff0e6; color:#e0743a; }
.ic-img{ background:#f3edff; color:#8b5cf6; }
.ic-zip{ background:#fff6e0; color:#d99a16; }
.ic-vid{ background:#fde9f1; color:#d6457e; }
.ic-code{ background:#e9fbf6; color:#0fae8e; }
.ic-default{ background:#eef0f6; color:#6b7290; }

/* Items — LIST */
.items-grid.is-list{ display:flex; flex-direction:column; gap:0; background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; box-shadow:var(--shadow-sm); }
.items-grid.is-list .card{ display:grid; grid-template-columns:auto 1fr auto auto auto; align-items:center; gap:18px; border:none; border-bottom:1px solid var(--line); border-radius:0; box-shadow:none; padding:14px 20px; transform:none; }
.items-grid.is-list .card:hover{ background:var(--surface-2); box-shadow:none; transform:none; }
.items-grid.is-list .card:last-child{ border-bottom:none; }
.items-grid.is-list .card-top{ display:contents; }
.items-grid.is-list .card-ic{ width:42px; height:42px; font-size:1.05rem; border-radius:11px; }
.items-grid.is-list .card-body{ min-width:0; }
.items-grid.is-list .card-name{ margin:0; }
.items-grid.is-list .card-meta{ font-size:.8rem; white-space:nowrap; }
.items-grid.is-list .l-size{ font-size:.82rem; color:var(--ink-2); width:90px; text-align:right; }
.items-grid.is-list .l-date{ font-size:.82rem; color:var(--muted); width:130px; text-align:right; }
.items-grid.is-list .card-menu{ opacity:1; position:static; }
.items-grid.is-list .tag-folder{ position:static; }
.list-col-name{ display:none; }

/* Empty */
.empty-state{ text-align:center; padding:80px 20px; color:var(--muted); }
.empty-state i{ font-size:3rem; color:var(--line-2); margin-bottom:16px; }
.empty-state p{ font-size:1.05rem; font-weight:600; color:var(--ink-2); margin:0 0 6px; }
.empty-state small{ font-size:.86rem; }

/* Toast */
.toast{
  position:fixed; bottom:28px; left:50%; transform:translateX(-50%) translateY(20px);
  background:var(--ink); color:#fff; padding:13px 20px; border-radius:12px; font-size:.88rem;
  box-shadow:var(--shadow-lg); opacity:0; pointer-events:none; transition:.3s; z-index:100;
  display:flex; align-items:center; gap:10px;
}
.toast.show{ opacity:1; transform:translateX(-50%) translateY(0); }
.toast i{ color:#8fe3c4; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:1024px){
  .stat-row{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:860px){
  .archive-screen{ grid-template-columns:1fr; }
  .sidebar{
    position:fixed; left:0; top:0; z-index:60; width:264px;
    transform:translateX(-100%); transition:transform .3s; box-shadow:var(--shadow-lg);
  }
  .sidebar.open{ transform:translateX(0); }
  .menu-toggle{ display:grid; place-items:center; }
  .sidebar-backdrop{ position:fixed; inset:0; background:rgba(15,18,34,.4); z-index:55; backdrop-filter:blur(2px); }
  .search-box kbd{ display:none; }
  .user-name{ display:none; }
}
@media (max-width:560px){
  .content{ padding:18px; }
  .topbar{ padding:12px 16px; }
  .stat-row{ grid-template-columns:1fr 1fr; gap:12px; }
  .auth-card{ padding:30px 24px 24px; }
  .items-grid.is-list .l-date{ display:none; }
}