:root{
  /* Light red + white theme */
  --bg:#f6f7fb;            /* app background */
  --panel:#ffffff;         /* cards / sidebar / bars */
  --panel2:#fbf5f5;        /* subtle tinted surface */
  --line:#eceef3;          /* borders */
  --text:#1c2230;          /* primary text */
  --muted:#6b7280;         /* secondary text */
  --accent:#e11d2e;        /* red primary */
  --accent-dark:#b3121f;   /* red hover/darker */
  --accent-soft:#fdecec;   /* red tint background */
  --accent2:#e11d2e;       /* keep "green" slots on-brand red */
  --success:#16a34a;       /* real success green (subtle use) */
  --danger:#dc2626;
  --warn:#d97706;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --shadow-md:0 4px 12px rgba(16,24,40,.08);
  --shadow-lg:0 18px 40px rgba(225,29,46,.10), 0 8px 24px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-dark);text-decoration:none}
h1,h2,h3{letter-spacing:-.01em}

.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:14px 24px;background:var(--panel);border-bottom:1px solid var(--line)}
.topbar .brand a{color:var(--text);font-weight:800;font-size:18px}
.topbar nav a{margin-left:18px;color:var(--muted)}
.topbar nav a:hover{color:var(--accent)}

.container{max-width:1040px;margin:28px auto;padding:0 20px}
.footer{text-align:center;color:var(--muted);padding:30px 0}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;margin-bottom:20px;box-shadow:var(--shadow-sm)}
.card h2,.card h3{margin-top:0}

.grid{display:grid;gap:16px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.grid.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}}
@media(max-width:560px){.grid.cols-4{grid-template-columns:1fr}}

.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.stat:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent)}
.stat .num{font-size:28px;font-weight:800;color:var(--text)}
.stat .label{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.04em}

label{display:block;margin:10px 0 6px;color:var(--text);font-size:14px;font-weight:500}
input,select,textarea{width:100%;padding:11px 13px;background:#fff;
  border:1px solid #dcdfe7;border-radius:10px;color:var(--text);font-size:15px;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input::placeholder,textarea::placeholder{color:#aab0bd}

.btn{display:inline-block;background:var(--accent);color:#fff;border:none;
  padding:11px 18px;border-radius:10px;font-size:15px;cursor:pointer;font-weight:600;
  box-shadow:0 2px 6px rgba(225,29,46,.25);transition:background .15s,transform .06s,box-shadow .15s}
.btn:hover{background:var(--accent-dark);color:#fff;text-decoration:none;box-shadow:0 4px 12px rgba(225,29,46,.32)}
.btn:active{transform:translateY(1px)}
.btn.green{background:var(--success);box-shadow:0 2px 6px rgba(22,163,74,.25)}
.btn.green:hover{background:#128a3f}
.btn.danger{background:var(--danger)}
.btn.danger:hover{background:#b91c1c}
.btn.ghost{background:#fff;border:1px solid #dcdfe7;color:var(--text);box-shadow:none}
.btn.ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.btn.sm{padding:6px 12px;font-size:13px}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 12px;border-bottom:1px solid var(--line);font-size:14px}
th{color:var(--muted);text-transform:uppercase;font-size:12px;letter-spacing:.04em;background:var(--panel2)}
tr:hover td{background:#fcfcfd}

.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:14px;border:1px solid transparent}
.alert.error{background:#fdecec;border-color:#f5c2c2;color:#a51221}
.alert.ok{background:#eafaf0;border-color:#b7e7c9;color:#12683a}
.alert.warn{background:#fff4e5;border-color:#f7d9a8;color:#8a5300}

.code,pre{background:#fbf5f5;border:1px solid var(--line);border-radius:10px;
  padding:14px;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:#7a1420}
.key-box{font-family:ui-monospace,monospace;background:var(--accent-soft);border:1px dashed var(--accent);
  padding:12px;border-radius:10px;word-break:break-all;color:var(--accent-dark)}

.auth-wrap{max-width:420px;margin:60px auto}
.badge{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.badge.active{background:#eafaf0;color:var(--success)}
.badge.blocked{background:#fdecec;color:var(--danger)}
.inline-form{display:inline}
.muted{color:var(--muted)}
.row-actions form{margin:2px 0}

/* Role badges */
.badge.role-admin{background:var(--accent-soft);color:var(--accent-dark)}
.badge.role-cust{background:#eef2ff;color:#4457c7}

/* Avatar (initials) */
.avatar{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:14px;flex:none}
.avatar-lg{width:66px;height:66px;font-size:24px;box-shadow:0 6px 16px rgba(225,29,46,.3)}

/* User detail profile header */
.profile-head{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.profile-meta{text-align:right;font-size:13px;line-height:1.7}
@media(max-width:640px){.profile-meta{text-align:left}}
.action-list{display:flex;flex-direction:column;gap:16px}
.action-list form{padding-bottom:14px;border-bottom:1px solid var(--line)}
.action-list form:last-child{border-bottom:none;padding-bottom:0}

/* API key copy box */
.key-copy{display:flex;gap:8px;align-items:stretch}
.key-input{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;
  background:var(--accent-soft);border:1px solid #f3cdd0;color:var(--accent-dark);
  border-radius:10px;padding:11px 13px;flex:1;word-break:break-all}
.key-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.copy-btn{flex:none;width:46px;border:1px solid #dcdfe7;background:#fff;border-radius:10px;
  cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;
  transition:background .12s,border-color .12s,transform .06s}
.copy-btn:hover{background:var(--accent-soft);border-color:var(--accent)}
.copy-btn:active{transform:translateY(1px)}
.copy-btn.copied{background:#eafaf0;border-color:#16a34a}
.copy-ico{line-height:1}

/* ============================================================
   Sidebar dashboard layout (admin + customer)
   ============================================================ */
body.has-sidebar { margin:0; }
.app-shell { display:flex; min-height:100vh; }

.sidebar { width:252px; flex:none; background:var(--panel); border-right:1px solid var(--line);
  display:flex; flex-direction:column; position:sticky; top:0; height:100vh; box-shadow:1px 0 0 rgba(16,24,40,.02); }
.sidebar-brand { display:flex; align-items:center; gap:10px; padding:20px 20px;
  border-bottom:1px solid var(--line); font-weight:800; font-size:17px; color:var(--text); }
.sidebar-logo { max-height:32px; max-width:150px; border-radius:6px; }
.sidebar-logo-mark { color:var(--accent); font-size:24px; }
.sidebar-title { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sidebar-nav { padding:14px 12px; display:flex; flex-direction:column; gap:4px; flex:1; overflow-y:auto; }
.side-link { display:flex; align-items:center; gap:12px; padding:11px 14px; border-radius:10px;
  color:var(--muted); font-size:14.5px; font-weight:500; transition:background .12s,color .12s; }
.side-link:hover { background:var(--accent-soft); color:var(--accent); text-decoration:none; }
.side-link.active { background:var(--accent); color:#fff; box-shadow:0 4px 12px rgba(225,29,46,.28); }
.side-ico { width:20px; text-align:center; font-size:16px; }
.sidebar-foot { padding:14px 20px; border-top:1px solid var(--line); font-size:12px;
  text-transform:uppercase; letter-spacing:.05em; color:var(--muted); }

.app-main { flex:1; min-width:0; display:flex; flex-direction:column; }
.app-topbar { display:flex; align-items:center; gap:14px; padding:14px 24px;
  background:var(--panel); border-bottom:1px solid var(--line); position:sticky; top:0; z-index:10; box-shadow:var(--shadow-sm); }
.topbar-title { font-weight:700; font-size:16px; }
.topbar-right { margin-left:auto; }
.hamburger { display:none; background:#fff; border:1px solid #dcdfe7; color:var(--text);
  border-radius:8px; padding:6px 10px; cursor:pointer; font-size:16px; }
.app-content { padding:28px 30px; max-width:1120px; width:100%; }
.app-content h1 { margin-top:0; }
.app-footer { margin-top:auto; text-align:center; color:var(--muted); padding:22px; border-top:1px solid var(--line); }

@media(max-width:860px){
  .sidebar { position:fixed; z-index:40; left:0; top:0; transform:translateX(-100%);
    transition:transform .2s ease; box-shadow:0 0 40px rgba(16,24,40,.25); }
  .sidebar.open { transform:translateX(0); }
  .hamburger { display:inline-block; }
  .app-content { padding:20px 16px; }
}

/* Settings tabs */
.tabs { display:flex; gap:6px; flex-wrap:wrap; border-bottom:1px solid var(--line); margin-bottom:22px; }
.tabs a { padding:10px 16px; color:var(--muted); font-weight:600; font-size:14px;
  border-bottom:2px solid transparent; }
.tabs a:hover { color:var(--accent); text-decoration:none; }
.tabs a.active { color:var(--accent); border-bottom-color:var(--accent); }
.form-row { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
@media(max-width:640px){ .form-row{ grid-template-columns:1fr; } }
.help { color:var(--muted); font-size:12.5px; margin-top:4px; }
.preview-img { max-height:60px; max-width:180px; border:1px solid var(--line); border-radius:10px;
  background:#fff; padding:6px; margin-top:6px; }

/* Upload OMR page */
.upload-tabs { display:flex; gap:8px; margin-bottom:18px; flex-wrap:wrap; }
.upload-tabs button { background:#fff; border:1px solid #dcdfe7; color:var(--muted);
  padding:9px 16px; border-radius:10px; cursor:pointer; font-size:14px; font-weight:600; transition:all .12s; }
.upload-tabs button:hover { border-color:var(--accent); color:var(--accent); }
.upload-tabs button.active { background:var(--accent); color:#fff; border-color:var(--accent); box-shadow:0 3px 8px rgba(225,29,46,.28); }
.dropzone { border:2px dashed #e0c4c7; border-radius:14px; padding:44px 20px; text-align:center;
  color:var(--muted); cursor:pointer; transition:border-color .15s, background .15s; background:#fff; }
.dropzone:hover, .dropzone.drag { border-color:var(--accent); background:var(--accent-soft); }
.dropzone .dz-ico { font-size:40px; }
.file-list { margin-top:14px; display:flex; flex-direction:column; gap:8px; }
.file-item { display:flex; align-items:center; gap:12px; background:var(--panel2);
  border:1px solid var(--line); border-radius:10px; padding:10px 12px; font-size:13.5px; }
.file-item .fi-name { flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.file-item .fi-status { font-size:12px; }
.file-item img.thumb { width:40px; height:40px; object-fit:cover; border-radius:6px; }
#camera-video, #camera-canvas { width:100%; max-width:480px; border-radius:12px; border:1px solid var(--line); background:#111; }
.result-json { margin-top:10px; }

/* Scan result cards (upload page) */
.scan-result { border:1px solid var(--line); border-radius:12px; padding:16px; margin-bottom:14px; background:#fff; }
.scan-result.ok { border-left:4px solid var(--success); }
.scan-result.fail { border-left:4px solid var(--danger); background:#fffafa; }
.sr-head { display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px; }
.sr-name { font-weight:700; word-break:break-all; }
.sr-meta { display:grid; grid-template-columns:repeat(auto-fit,minmax(120px,1fr)); gap:12px; margin-bottom:10px; }
.sr-meta > div { display:flex; flex-direction:column; }
.sr-meta .muted { font-size:11.5px; text-transform:uppercase; letter-spacing:.04em; }
.sr-meta strong { font-size:16px; color:var(--text); }
.ans-grid { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:8px; }
.ans-chip { background:var(--panel2); border:1px solid var(--line); border-radius:8px; padding:4px 9px; font-size:12.5px; }
.ans-chip b { color:var(--accent); }
.sr-error { color:var(--danger); font-weight:600; margin-bottom:4px; }
.sr-raw { margin-top:8px; }
.sr-raw summary { cursor:pointer; color:var(--muted); font-size:13px; }

/* ============================================================
   Standalone auth pages (login, signup, verify, forgot, reset)
   ============================================================ */
body.auth-body { background:
  radial-gradient(760px 420px at 50% -8%, var(--accent-soft), transparent 60%),
  linear-gradient(180deg,#fff 0%,var(--bg) 100%); }
.auth-shell { min-height:100vh; display:flex; flex-direction:column; align-items:center; padding:30px 16px; }
.auth-brand { display:inline-flex; align-items:center; gap:10px; color:var(--text); font-weight:800;
  font-size:20px; margin:20px 0 10px; }
.auth-brand:hover { text-decoration:none; }
.auth-main { width:100%; display:flex; justify-content:center; flex:1; align-items:center; }
.auth-foot { padding:16px; color:var(--muted); }
.auth-body .auth-wrap { margin:0; width:100%; max-width:440px; }
.auth-body .card { box-shadow:var(--shadow-lg); border-radius:18px; padding:30px; }
.auth-body .card h2 { font-size:24px; }
.otp-input { letter-spacing:10px; text-align:center; font-size:22px; font-weight:700; }

/* Bulk progress bar */
.progress-bar { height:14px; background:var(--panel2); border:1px solid var(--line); border-radius:20px; overflow:hidden; }
.progress-fill { height:100%; width:0; background:linear-gradient(90deg,var(--accent),#ff6b78); transition:width .25s ease; }

/* ============================================================
   Admin dashboard + shared spacing polish
   ============================================================ */
.app-content { padding:30px 34px 44px; }
@media(max-width:860px){ .app-content{ padding:22px 18px 32px; } }
.app-content > h1 { margin:0 0 20px; font-size:26px; }
.app-content > h3 { margin:26px 0 14px; }

/* Page header row */
.page-head { display:flex; justify-content:space-between; align-items:flex-end; gap:16px;
  flex-wrap:wrap; margin-bottom:24px; }
.page-head h1 { margin:0; font-size:26px; }
.page-head-actions { display:flex; gap:10px; flex-wrap:wrap; }

/* KPI cards */
.kpi-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-bottom:20px; }
.kpi-grid-3 { grid-template-columns:repeat(3,1fr); }
@media(max-width:980px){ .kpi-grid{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:560px){ .kpi-grid{ grid-template-columns:1fr; } }
.kpi { display:flex; align-items:center; gap:16px; background:#fff; border:1px solid var(--line);
  border-radius:16px; padding:20px 22px; box-shadow:var(--shadow-sm); transition:transform .15s, box-shadow .15s; }
.kpi:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); }
.kpi-ico { width:52px; height:52px; flex:none; display:flex; align-items:center; justify-content:center;
  font-size:24px; background:var(--accent-soft); border-radius:14px; }
.kpi-num { font-size:26px; font-weight:800; color:var(--text); line-height:1.1; }
.kpi-label { color:var(--muted); font-size:12.5px; text-transform:uppercase; letter-spacing:.04em; margin-top:4px; }

/* Mini stats */
.mini-stat { display:flex; justify-content:space-between; align-items:center;
  background:#fff; border:1px solid var(--line); border-radius:14px; padding:18px 22px; box-shadow:var(--shadow-sm); }
.mini-num { font-size:24px; font-weight:800; color:var(--text); }
.mini-ico { font-size:22px; opacity:.7; }

/* Quick action cards */
.section-title { margin:8px 0 14px; font-size:16px; }
.quick-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:28px; }
@media(max-width:980px){ .quick-grid{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:560px){ .quick-grid{ grid-template-columns:1fr; } }
.quick-card { display:flex; flex-direction:column; gap:4px; background:#fff; border:1px solid var(--line);
  border-radius:14px; padding:20px; box-shadow:var(--shadow-sm); transition:transform .15s, border-color .15s, box-shadow .15s; }
.quick-card:hover { transform:translateY(-3px); border-color:#f3cdd0; box-shadow:var(--shadow-md); text-decoration:none; }
.quick-ico { font-size:26px; width:48px; height:48px; display:flex; align-items:center; justify-content:center;
  background:var(--accent-soft); border-radius:12px; margin-bottom:6px; }
.quick-t { font-weight:700; color:var(--text); font-size:15px; }
.quick-d { font-size:12.5px; }

/* Card header row */
.card-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:12px; gap:12px; flex-wrap:wrap; }
.card-head h3 { margin:0; }
.grid.cols-2 { gap:20px; }

/* Info / how-to card */
.info-card { border-left:4px solid var(--accent); background:linear-gradient(180deg,#fff, #fffafa); }
.info-card h3 { margin:0 0 6px; }
.info-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; margin:18px 0 4px; }
@media(max-width:720px){ .info-grid{ grid-template-columns:1fr; } }
.info-step { display:flex; gap:12px; align-items:flex-start; }
.info-step .info-n { flex:none; width:28px; height:28px; border-radius:50%; background:var(--accent);
  color:#fff; font-weight:700; font-size:13px; display:flex; align-items:center; justify-content:center; margin-top:2px; }
.info-step strong { display:block; margin-bottom:2px; color:var(--text); }
.info-step p { margin:0; font-size:13px; }

/* Sheet-type badges */
.badge.sheet-auto { background:#eef2ff; color:#4457c7; }
.badge.sheet-bw   { background:#eceef3; color:#374151; }
.badge.sheet-color{ background:var(--accent-soft); color:var(--accent-dark); }

/* Buy credits — package cards */
.pkg-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-bottom:26px; }
@media(max-width:760px){ .pkg-grid{ grid-template-columns:1fr; } }
.pkg-card { position:relative; background:#fff; border:1px solid var(--line); border-radius:16px;
  padding:22px; box-shadow:var(--shadow-sm); display:flex; flex-direction:column; text-align:center;
  transition:transform .15s, box-shadow .15s, border-color .15s; }
.pkg-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:#f3cdd0; }
.pkg-card.pkg-featured { border-color:var(--accent); box-shadow:0 0 0 2px var(--accent) inset, var(--shadow-md); }
.pkg-tag { position:absolute; top:-12px; left:50%; transform:translateX(-50%); background:var(--accent);
  color:#fff; font-size:11.5px; font-weight:700; padding:4px 14px; border-radius:20px; box-shadow:0 4px 10px rgba(225,29,46,.3); }
.pkg-name { font-size:13px; text-transform:uppercase; letter-spacing:.05em; color:var(--muted); font-weight:700; }
.pkg-credits { font-size:30px; font-weight:800; color:var(--text); margin:8px 0 2px; }
.pkg-credits span { font-size:14px; font-weight:600; color:var(--muted); }
.pkg-amt { font-size:22px; font-weight:800; color:var(--accent); }
.pkg-rate { font-size:12.5px; margin-bottom:16px; }
.pkg-btn { margin-top:auto; width:100%; }

/* Pay info card */
.pay-badge { display:flex; align-items:center; gap:14px; background:var(--accent-soft);
  border:1px solid #f3cdd0; border-radius:12px; padding:14px 16px; }
.pay-mark { font-size:30px; }

/* Toggle switch */
.switch { display:inline-flex; align-items:center; gap:12px; cursor:pointer; }
.switch input { position:absolute; opacity:0; width:0; height:0; }
.switch-slider { position:relative; width:46px; height:26px; background:#cdd2dc; border-radius:20px;
  transition:background .18s; flex:none; }
.switch-slider:before { content:""; position:absolute; top:3px; left:3px; width:20px; height:20px;
  background:#fff; border-radius:50%; transition:transform .18s; box-shadow:0 1px 3px rgba(0,0,0,.25); }
.switch input:checked + .switch-slider { background:var(--accent); }
.switch input:checked + .switch-slider:before { transform:translateX(20px); }
.switch-label { font-size:14px; color:var(--text); font-weight:500; }