@font-face {
  font-family: 'Poppins';
  src: url('../js/vendor/Poppins-Regular.ttf') format('truetype');
}

:root{
  --brand:#6d28d9; --brand2:#4f46e5; --brand-grad:linear-gradient(135deg,#7c3aed,#4f46e5);
  --bg:#f4f5fb; --bg2:#eef0f9; --surface:#ffffff; --surface2:#f7f8fd;
  --ink:#1b1630; --dim:#5b5670; --mut:#8b87a3; --line:#e6e6f0;
  --shadow:0 6px 24px rgba(76,29,149,.10); --shadow-lg:0 16px 48px rgba(76,29,149,.18);
  --good:#16a34a; --warn:#d97706; --bad:#dc2626; --radius:18px;
  --ripple:rgba(124,58,237,.28);
}
[data-theme="dark"]{
  --bg:#0c0a16; --bg2:#110d20; --surface:#171327; --surface2:#1d1832;
  --ink:#ece9f6; --dim:#b3aece; --mut:#8983a6; --line:#272138;
  --shadow:0 6px 24px rgba(0,0,0,.45); --shadow-lg:0 18px 50px rgba(0,0,0,.6);
  --ripple:rgba(167,139,250,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:radial-gradient(120% 80% at 50% -10%,var(--bg2),var(--bg));color:var(--ink);
  font:15px/1.55 -apple-system,"Segoe UI",Roboto,system-ui,sans-serif;min-height:100vh;
  transition:background .35s ease,color .35s ease;-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
.app{display:flex;flex-direction:column;min-height:100vh}

/* ---------- topbar ---------- */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:18px;
  padding:12px 20px;background:color-mix(in srgb,var(--surface) 80%,transparent);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.logo-badge{width:36px;height:36px;border-radius:11px;background:var(--brand-grad);color:#fff;
  display:grid;place-items:center;font-weight:900;box-shadow:var(--shadow)}
.logo-text b{color:var(--brand)}
[data-theme="dark"] .logo-text b{color:#a78bfa}
.topnav{display:flex;gap:6px;margin-left:auto}
.topnav a{padding:8px 14px;border-radius:10px;font-weight:600;color:var(--dim);font-size:14px;transition:.2s}
.topnav a:hover{background:var(--surface2);color:var(--ink)}
.topnav a.active{background:var(--brand);color:#fff}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  cursor:pointer;font-size:18px;display:grid;place-items:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}

/* ---------- main ---------- */
.main{flex:1;width:100%;max-width:1120px;margin:0 auto;padding:24px 20px 40px}

/* ---------- hero ---------- */
.hero{background:var(--brand-grad);color:#fff;border-radius:26px;padding:38px 30px;box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;margin-bottom:26px}
.hero::after{content:"";position:absolute;inset:auto -60px -90px auto;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.12)}
.hero h1{margin:0 0 8px;font-size:30px;font-weight:800;letter-spacing:-.5px}
.hero p{margin:0;opacity:.92;max-width:560px}
.hero .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.hero .chip{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);padding:5px 12px;border-radius:20px;font-size:12px;font-weight:600}

/* ---------- section + grid ---------- */
.sec-title{display:flex;align-items:center;gap:10px;margin:26px 4px 14px;font-size:14px;font-weight:700;color:var(--dim);text-transform:uppercase;letter-spacing:.6px}
.sec-title::before{content:"";width:14px;height:14px;border-radius:5px;background:var(--brand-grad)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  cursor:pointer;position:relative;overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.card .t-ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:12px;
  background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand)}
[data-theme="dark"] .card .t-ico{color:#c4b5fd;background:rgba(124,58,237,.18)}
.card h3{margin:0 0 4px;font-size:15.5px}
.card p{margin:0;font-size:12.5px;color:var(--mut);line-height:1.45}
.card.soon{opacity:.6;cursor:default}
.card.soon:hover{transform:none;box-shadow:var(--shadow);border-color:var(--line)}
.badge-soon{position:absolute;top:12px;right:12px;font-size:10px;font-weight:700;color:var(--warn);
  background:color-mix(in srgb,var(--warn) 16%,transparent);padding:2px 8px;border-radius:20px}

/* ---------- tool page ---------- */
.toolhead{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.toolhead .t-ico{width:54px;height:54px;border-radius:15px;background:var(--brand-grad);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow)}
.toolhead h1{margin:0;font-size:22px}
.toolhead p{margin:2px 0 0;color:var(--mut);font-size:13px}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--dim);font-weight:600;font-size:13px;margin-bottom:12px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:16px}
.drop{border:2px dashed color-mix(in srgb,var(--brand) 40%,var(--line));border-radius:16px;padding:34px 18px;text-align:center;
  cursor:pointer;transition:.2s;background:var(--surface2)}
.drop:hover,.drop.over{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 8%,var(--surface2))}
.drop .d-ico{font-size:34px}
.drop b{display:block;margin-top:6px}
.drop span{font-size:12.5px;color:var(--mut)}
.files{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.file{display:flex;align-items:center;gap:10px;background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:9px 12px}
.file .fi{width:30px;height:30px;border-radius:8px;background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand);display:grid;place-items:center;font-size:13px;flex-shrink:0}
.file .fname{flex:1;min-width:0;font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .fsize{font-size:11px;color:var(--mut)}
.file .fbtn{border:none;background:transparent;cursor:pointer;color:var(--mut);font-size:16px;padding:4px;border-radius:8px}
.file .fbtn:hover{background:var(--line);color:var(--ink)}
.opts{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px}
.opt{display:flex;flex-direction:column;gap:5px}
.opt label{font-size:12px;font-weight:600;color:var(--dim)}
.opt input,.opt select,.opt textarea{background:var(--surface2);border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:9px 11px;font-size:14px;font-family:inherit}
.opt textarea{min-width:280px;min-height:120px;resize:vertical}
.row-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

/* ---------- buttons + ripple ---------- */
.btn{position:relative;overflow:hidden;border:none;border-radius:13px;padding:13px 22px;font-weight:700;font-size:15px;cursor:pointer;
  background:var(--brand-grad);color:#fff;box-shadow:var(--shadow);transition:transform .12s,box-shadow .2s}
.btn:hover{box-shadow:var(--shadow-lg)}
.btn:active{transform:scale(.98)}
.btn[disabled]{opacity:.5;cursor:default;box-shadow:none}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn.sm{padding:9px 14px;font-size:13px;border-radius:11px}
.ripple{position:relative;overflow:hidden}
.rp{position:absolute;border-radius:50%;transform:scale(0);background:var(--ripple);animation:rp .6s ease-out;pointer-events:none}
@keyframes rp{to{transform:scale(2.6);opacity:0}}

/* ---------- progress + result ---------- */
.prog{height:10px;background:var(--surface2);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:14px;display:none}
.prog.show{display:block}
.prog i{display:block;height:100%;width:30%;background:var(--brand-grad);transition:width .25s}
.result{display:none;margin-top:16px;padding:18px;border-radius:16px;background:color-mix(in srgb,var(--good) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--good) 35%,var(--line))}
.result.show{display:block}
.result h4{margin:0 0 4px;color:var(--good)}
.result .meta{font-size:12.5px;color:var(--mut);margin-bottom:12px}
.muted{color:var(--mut);font-size:12.5px}
.hint{font-size:12px;color:var(--mut);margin-top:8px}

/* ---------- bottom nav (mobile app feel) ---------- */
.bottomnav{display:none}
.foot{max-width:1120px;margin:0 auto;padding:24px 20px;color:var(--mut);font-size:12.5px;text-align:center}
.foot b{color:var(--dim)}.foot-sub{margin-top:4px;opacity:.8}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(40px);opacity:0;
  background:var(--ink);color:var(--bg);padding:12px 20px;border-radius:12px;font-size:13.5px;font-weight:600;
  box-shadow:var(--shadow-lg);z-index:60;transition:.3s;pointer-events:none;max-width:90%}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.bad{background:var(--bad);color:#fff}

@media(max-width:760px){
  .topnav{display:none}
  .bottomnav{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;background:color-mix(in srgb,var(--surface) 92%,transparent);
    backdrop-filter:blur(14px);border-top:1px solid var(--line);padding:8px 6px calc(8px + env(safe-area-inset-bottom))}
  .bn{flex:1;background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--mut);font-size:10.5px;font-weight:600;cursor:pointer;padding:4px;border-radius:10px}
  .bn.active{color:var(--brand)}
  .bn-ico{font-size:19px}
  .main{padding:18px 14px 90px}
  .hero{padding:28px 22px;border-radius:22px}.hero h1{font-size:24px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:11px}
  .foot{padding-bottom:84px}
}

/* ---------- viewer / reader / editor / organize (Phase 2-3) ---------- */
.tbtn{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:8px 12px;font-weight:700;font-size:13px;cursor:pointer;position:relative;overflow:hidden}
.tbtn:hover{border-color:var(--brand)}
.tbtn.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.viewer-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.viewer-bar #pind,.viewer-bar #epind{font-weight:700;font-size:13px;min-width:64px;text-align:center}
.vb-sp{flex:0 0 12px}
.canvas-scroll{overflow:auto;max-height:72vh;border:1px solid var(--line);border-radius:14px;background:var(--surface2);padding:14px;display:flex;justify-content:center}
.pcanvas{box-shadow:var(--shadow-lg);border-radius:6px;max-width:100%;height:auto;background:#fff}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px}
.thumb{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:8px;text-align:center}
.thumb-canvas{display:flex;justify-content:center;align-items:center;min-height:120px;overflow:hidden}
.thumb-canvas canvas{max-width:100%;box-shadow:var(--shadow);background:#fff;transition:transform .2s}
.thumb-ctrls{display:flex;justify-content:center;gap:4px;margin-top:8px}
.thumb-ctrls .tbtn{padding:5px 8px;font-size:12px}
.thumb-lab{font-size:11px;color:var(--mut);margin-top:6px;font-weight:600}
.ed-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.ed-toolbar input[type=color]{width:40px;height:38px;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;padding:2px}
.ed-toolbar select{border:1px solid var(--line);border-radius:10px;padding:8px;background:var(--surface);color:var(--ink)}
.ed-stage{position:relative;line-height:0}
.ed-ov{position:absolute;left:0;top:0;cursor:crosshair;touch-action:none}
@media(max-width:760px){ .canvas-scroll{max-height:64vh;padding:8px} .thumbs{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))} }

/* ---------- history view ---------- */
.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.history-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .2s;
}
.history-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--brand) 40%, var(--line));
}
.history-item-header {
  display: flex;
  align-items: center;
  gap: 12px;
}
.history-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  color: var(--brand);
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
}
[data-theme="dark"] .history-item-icon {
  background: rgba(124,58,237,.18);
  color: #c4b5fd;
}
.history-item-title {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.history-item-details {
  font-size: 12.5px;
  color: var(--dim);
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--surface2);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.history-item-details span {
  display: flex;
  justify-content: space-between;
}
.history-item-details b {
  color: var(--ink);
}
.history-item-meta {
  font-size: 11px;
  color: var(--mut);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.history-item-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.history-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--dim);
}
.history-empty .empty-ico {
  font-size: 54px;
  margin-bottom: 12px;
}
.history-empty h3 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 17px;
}
.history-empty p {
  margin: 0;
  font-size: 13px;
  color: var(--mut);
}

/* ---------- login screen ---------- */
.login-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  padding: 20px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
}
.login-card h2 {
  margin: 0 0 4px;
  font-weight: 800;
  font-size: 22px;
  color: var(--ink);
}
.login-card p {
  margin: 0 0 10px;
  font-size: 13.5px;
  color: var(--dim);
}
.login-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}
.login-group label {
  font-size: 12px;
  font-weight: 700;
  color: var(--dim);
}
.login-group input {
  background: var(--surface2);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 11px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-family: inherit;
  transition: border-color 0.2s;
}
.login-group input:focus {
  outline: none;
  border-color: var(--brand);
}

/* ---------- role badges ---------- */
.badge-role {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  display: inline-block;
}
.badge-role.super-admin {
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  color: var(--brand);
}
[data-theme="dark"] .badge-role.super-admin {
  background: rgba(124,58,237,.22);
  color: #c4b5fd;
}
.badge-role.admin {
  background: color-mix(in srgb, var(--brand2) 16%, transparent);
  color: var(--brand2);
}
[data-theme="dark"] .badge-role.admin {
  background: rgba(79,70,229,.22);
  color: #a5b4fc;
}
.badge-role.user {
  background: color-mix(in srgb, var(--good) 16%, transparent);
  color: var(--good);
}
[data-theme="dark"] .badge-role.user {
  background: rgba(22,163,74,.22);
  color: #86efac;
}

/* ---------- user management ---------- */
.user-management-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.user-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) auto;
  gap: 12px;
  align-items: flex-end;
  background: var(--surface2);
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
}
.user-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.user-table {
  width: 100%;
  border-collapse: collapse;
}
.user-table th, .user-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.user-table th {
  font-weight: 700;
  color: var(--dim);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.user-table td {
  font-size: 13.5px;
}
.user-table tr:hover {
  background: var(--surface2);
}