/* ═══ CSS VARIABLES ═══ */
:root {
  --bg: #f4f6fb; --surface: #ffffff; --surface2: #f8f9fc; --surface3: #f0f2f7;
  --border: #e2e5ef; --border2: #d0d4e0; --border3: #b8bdd0;
  --text: #111827; --text2: #4b5563; --text3: #6b7280; --text4: #9ca3af;
  --primary: #4f46e5; --primary-hover: #4338ca; --primary-light: #eef2ff; --primary-border: #a5b4fc;
  --green: #059669; --green-l: #ecfdf5; --green-b: #6ee7b7;
  --amber: #d97706; --amber-l: #fffbeb; --amber-b: #fcd34d;
  --red: #dc2626; --red-l: #fef2f2; --red-b: #fca5a5;
  --teal: #0d9488; --teal-l: #f0fdfa; --teal-b: #5eead4;
  --purple: #7c3aed; --purple-l: #f5f3ff; --purple-b: #c4b5fd;
  --blue: var(--primary); --blue-l: var(--primary-light); --blue-b: var(--primary-border);
  --accent: var(--primary);
  --sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --r: 8px; --r2: 12px; --r3: 16px;
  --sh: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.02);
  --sh2: 0 4px 24px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.03);
  --sh3: 0 12px 40px rgba(0,0,0,.1), 0 4px 12px rgba(0,0,0,.04);
  --transition: .2s cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); font-size: 14px; min-height: 100vh; -webkit-font-smoothing: antialiased; }

/* ═══ AUTH SCREEN ═══ */
#auth-screen {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(79,70,229,.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(99,102,241,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(139,92,246,.05) 0%, transparent 50%),
    linear-gradient(180deg, #f0f0ff 0%, #f4f6fb 50%, #eef1f8 100%);
}
.auth-card {
  background: rgba(255,255,255,.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.6); border-radius: 20px;
  box-shadow: var(--sh3), 0 0 0 1px rgba(0,0,0,.03); width: 100%; max-width: 420px; overflow: hidden;
}
.auth-header {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #3730a3 70%, #4338ca 100%);
  color: #fff; padding: 32px 36px; text-align: center; position: relative; overflow: hidden;
}
.auth-header::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(255,255,255,.05) 0%, transparent 50%);
}
.auth-header h1 { font-size: 20px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; position: relative; }
.auth-header small { font-size: 12px; font-weight: 400; color: rgba(255,255,255,.55); display: block; margin-top: 6px; position: relative; }
.auth-body { padding: 28px 32px; }
.auth-body .form-group { margin-bottom: 16px; }
.auth-body .btn { width: 100%; justify-content: center; padding: 11px 16px; font-size: 14px; }
.auth-toggle { text-align: center; padding: 16px 32px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text2); background: var(--surface2); }
.auth-toggle a { color: var(--primary); font-weight: 600; cursor: pointer; text-decoration: none; }
.auth-toggle a:hover { text-decoration: underline; }
.auth-error { background: var(--red-l); color: var(--red); border: 1px solid var(--red-b); border-radius: var(--r); padding: 10px 14px; font-size: 12px; margin-bottom: 14px; display: none; font-weight: 500; }
.auth-info { background: var(--primary-light); color: var(--primary); border: 1px solid var(--primary-border); border-radius: var(--r); padding: 10px 14px; font-size: 12px; margin-bottom: 14px; display: none; font-weight: 500; }

/* ═══ APP SHELL ═══ */
#app-shell { display: none; min-height: 100vh; }
#app-shell.active { display: flex; }

/* ═══ SIDEBAR ═══ */
.sidebar {
  width: 240px; display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; z-index: 100;
  background: linear-gradient(180deg, #111827 0%, #1e1b4b 100%);
  color: #fff;
}
.sidebar-brand { padding: 22px 20px 18px; border-bottom: 1px solid rgba(255,255,255,.06); }
.sidebar-brand h1 { font-size: 15px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: #fff; }
.sidebar-brand small { font-size: 11px; font-weight: 400; color: rgba(255,255,255,.4); display: block; margin-top: 3px; }
.sidebar-section { padding: 18px 0 6px 20px; font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.25); }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 4px 10px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--r);
  cursor: pointer; font-size: 13px; font-weight: 500; color: rgba(255,255,255,.55);
  transition: all var(--transition); position: relative;
}
.nav-item:hover { background: rgba(255,255,255,.07); color: rgba(255,255,255,.9); }
.nav-item.active {
  background: linear-gradient(135deg, var(--primary), #6366f1);
  color: #fff; box-shadow: 0 2px 8px rgba(79,70,229,.35);
}
.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; opacity: .7; }
.nav-item.active svg { opacity: 1; }

/* ═══ MAIN AREA ═══ */
.main { margin-left: 240px; flex: 1; min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  background: rgba(255,255,255,.8); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
}
.topbar-title { font-size: 17px; font-weight: 700; color: var(--text); }
.topbar-date { font-family: var(--mono); font-size: 12px; color: var(--text3); background: var(--surface3); padding: 4px 10px; border-radius: 20px; }
.topbar-user { display: flex; align-items: center; gap: 10px; }
.topbar-user span { font-size: 12px; color: var(--text2); }
.content { padding: 24px 28px; flex: 1; }
.page { display: none; } .page.active { display: block; }

/* ═══ CARDS ═══ */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r2);
  box-shadow: var(--sh); transition: box-shadow var(--transition);
}
.card:hover { box-shadow: var(--sh2); }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-header h3 { font-size: 15px; font-weight: 700; }
.card-body { padding: 20px; }

/* ═══ BADGES ═══ */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; white-space: nowrap; letter-spacing: .01em; }
.badge-blue { background: var(--primary-light); color: var(--primary); border: 1px solid var(--primary-border); }
.badge-green { background: var(--green-l); color: var(--green); border: 1px solid var(--green-b); }
.badge-amber { background: var(--amber-l); color: var(--amber); border: 1px solid var(--amber-b); }
.badge-red { background: var(--red-l); color: var(--red); border: 1px solid var(--red-b); }
.badge-teal { background: var(--teal-l); color: var(--teal); border: 1px solid var(--teal-b); }
.badge-purple { background: var(--purple-l); color: var(--purple); border: 1px solid var(--purple-b); }

/* ═══ FORMS ═══ */
input, select, textarea {
  font-family: var(--sans); font-size: 13px; background: var(--surface); color: var(--text);
  border: 1.5px solid var(--border2); border-radius: var(--r); padding: 9px 13px;
  outline: none; transition: all var(--transition); width: 100%;
}
input:focus, select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
input:hover, select:hover { border-color: var(--border3); }
input[type=number] { font-family: var(--mono); }
input[readonly] { background: var(--surface3); color: var(--text2); cursor: default; }
input[readonly]:hover { border-color: var(--border2); }
select { cursor: pointer; appearance: auto; }
label { font-size: 11px; font-weight: 600; color: var(--text2); display: block; margin-bottom: 5px; letter-spacing: .03em; text-transform: uppercase; }
.form-hint { font-size: 11px; color: var(--text4); margin-top: 3px; }

/* ═══ BUTTONS ═══ */
.btn {
  font-family: var(--sans); font-size: 13px; font-weight: 600; padding: 9px 18px;
  border-radius: var(--r); border: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all var(--transition); white-space: nowrap; position: relative;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #6366f1); color: #fff;
  box-shadow: 0 2px 6px rgba(79,70,229,.25);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-hover), #4f46e5); box-shadow: 0 4px 12px rgba(79,70,229,.35); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 4px rgba(79,70,229,.2); }
.btn-secondary {
  background: var(--surface); color: var(--text); border: 1.5px solid var(--border2);
}
.btn-secondary:hover { background: var(--surface3); border-color: var(--border3); }
.btn-green {
  background: linear-gradient(135deg, var(--green), #10b981); color: #fff;
  box-shadow: 0 2px 6px rgba(5,150,105,.25);
}
.btn-green:hover { box-shadow: 0 4px 12px rgba(5,150,105,.35); transform: translateY(-1px); }
.btn-green:active { transform: translateY(0); }
.btn-red {
  background: linear-gradient(135deg, var(--red), #ef4444); color: #fff;
  box-shadow: 0 2px 6px rgba(220,38,38,.2);
}
.btn-red:hover { box-shadow: 0 4px 12px rgba(220,38,38,.3); transform: translateY(-1px); }
.btn-red:active { transform: translateY(0); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ═══ GRIDS ═══ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }
.grid-5 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr 1fr; gap: 16px; }
.form-row { display: grid; gap: 14px; margin-bottom: 14px; }
.form-group { display: flex; flex-direction: column; }

/* ═══ TABLES ═══ */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table thead { background: var(--surface3); }
.data-table th {
  padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 600;
  color: var(--text3); letter-spacing: .04em; text-transform: uppercase;
  border-bottom: 2px solid var(--border);
}
.data-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tbody tr { transition: background var(--transition); }
.data-table tbody tr:hover { background: var(--primary-light); }

/* ═══ MODALS ═══ */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(15,23,42,.5); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  z-index: 200; justify-content: center; align-items: flex-start;
  padding: 30px; overflow-y: auto;
}
.modal {
  background: var(--surface); border-radius: var(--r3); box-shadow: var(--sh3);
  width: 100%; max-width: 960px; margin: auto; animation: modalIn .25s cubic-bezier(.4,0,.2,1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(-16px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 17px; font-weight: 700; }
.modal-body { padding: 24px; max-height: 75vh; overflow-y: auto; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; background: var(--surface2); border-radius: 0 0 var(--r3) var(--r3); }
.modal-close { background: none; border: none; font-size: 22px; color: var(--text4); cursor: pointer; padding: 4px 8px; line-height: 1; border-radius: var(--r); transition: all var(--transition); }
.modal-close:hover { color: var(--text); background: var(--surface3); }

/* ═══ STATS ═══ */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r2);
  padding: 18px 20px; box-shadow: var(--sh); transition: all var(--transition);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), #818cf8);
  opacity: 0; transition: opacity var(--transition);
}
.stat-card:hover { box-shadow: var(--sh2); }
.stat-card:hover::before { opacity: 1; }
.stat-label { font-size: 11px; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-family: var(--mono); font-size: 28px; font-weight: 700; margin-top: 6px; background: linear-gradient(135deg, var(--text), var(--text2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--text3); }
.empty-state .icon { font-size: 36px; margin-bottom: 10px; opacity: .35; }

/* ═══ PLAN OUTPUT ═══ */
.plan-output { font-family: var(--sans); background: var(--surface); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; box-shadow: var(--sh); }
.plan-output-header {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #3730a3 70%, #4338ca 100%);
  color: #fff; padding: 26px 28px; position: relative; overflow: hidden;
}
.plan-output-header::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,.06) 0%, transparent 50%);
}
.plan-output-header h2 { font-size: 20px; font-weight: 700; margin-bottom: 4px; position: relative; }
.plan-output-header .subtitle { font-size: 13px; opacity: .65; position: relative; }
.plan-section { padding: 20px 28px; border-bottom: 1px solid var(--border); } .plan-section:last-child { border-bottom: none; }
.plan-section-title { font-size: 11px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }
.plan-kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 20px; font-size: 13px; }
.plan-kv dt { color: var(--text3); font-weight: 500; } .plan-kv dd { font-weight: 500; }
.plan-kv dd.highlight { color: var(--primary); font-weight: 600; } .plan-kv dd.green { color: var(--green); font-weight: 600; }
.plan-paper-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.plan-paper-card {
  background: var(--surface2); border: 1px solid var(--border); border-radius: var(--r);
  padding: 14px 16px; transition: all var(--transition);
}
.plan-paper-card:hover { border-color: var(--primary-border); background: var(--primary-light); }
.plan-paper-card h4 { font-size: 11px; font-weight: 700; color: var(--primary); text-transform: uppercase; margin-bottom: 8px; letter-spacing: .03em; }
.plan-paper-card .val { font-family: var(--mono); font-size: 13px; font-weight: 500; }
.plan-paper-card .lbl { font-size: 11px; color: var(--text4); }

/* ═══ INK CHIPS ═══ */
.ink-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.ink-chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; border: 1.5px solid; cursor: pointer;
  transition: all var(--transition); user-select: none;
}
.ink-chip.selected { box-shadow: 0 0 0 2px rgba(79,70,229,.2); }
.ink-chip[data-color="Black"] { background: #f3f4f6; color: #1f2937; border-color: #d1d5db; } .ink-chip[data-color="Black"].selected { background: #1f2937; color: #fff; border-color: #1f2937; }
.ink-chip[data-color="Blue"] { background: #eef2ff; color: #4338ca; border-color: #a5b4fc; } .ink-chip[data-color="Blue"].selected { background: #4338ca; color: #fff; border-color: #4338ca; }
.ink-chip[data-color="Green"] { background: #ecfdf5; color: #059669; border-color: #6ee7b7; } .ink-chip[data-color="Green"].selected { background: #059669; color: #fff; border-color: #059669; }
.ink-chip[data-color="Red"] { background: #fef2f2; color: #dc2626; border-color: #fca5a5; } .ink-chip[data-color="Red"].selected { background: #dc2626; color: #fff; border-color: #dc2626; }

/* ═══ RADIO GROUP ═══ */
.radio-group { display: flex; gap: 0; border: 1.5px solid var(--border2); border-radius: var(--r); overflow: hidden; }
.radio-option {
  flex: 1; text-align: center; padding: 9px 14px; font-size: 13px; font-weight: 500;
  cursor: pointer; background: var(--surface); border-right: 1px solid var(--border2);
  transition: all var(--transition); user-select: none;
}
.radio-option:last-child { border-right: none; }
.radio-option:hover { background: var(--surface3); }
.radio-option.active { background: linear-gradient(135deg, var(--primary), #6366f1); color: #fff; }
.radio-option input { display: none; }

/* ═══ SEARCH ═══ */
.search-box { position: relative; } .search-box input { padding-left: 34px; }
.search-box svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 14px; height: 14px; color: var(--text4); }

/* ═══ MATERIAL TABLE ═══ */
.mat-req-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 10px; }
.mat-req-table th { text-align: left; padding: 7px 10px; font-size: 10px; font-weight: 700; color: var(--text3); text-transform: uppercase; letter-spacing: .04em; border-bottom: 2px solid var(--border); background: var(--surface3); }
.mat-req-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 12px; }
.mat-req-table td:first-child { font-family: var(--sans); font-weight: 500; }
.mat-req-table tr.total-row { background: var(--amber-l); font-weight: 700; } .mat-req-table tr.total-row td { border-bottom: 2px solid var(--amber-b); }
.formula-note { font-size: 11px; color: var(--text4); margin-top: 2px; font-style: italic; }

/* ═══ ODS DISPLAY ═══ */
.ods-box { background: var(--green-l); border: 1px solid var(--green-b); border-radius: var(--r); padding: 12px 16px; text-align: center; }
.ods-box .ods-label { font-size: 10px; font-weight: 700; color: var(--green); text-transform: uppercase; letter-spacing: .04em; }
.ods-box .ods-val { font-family: var(--mono); font-size: 22px; font-weight: 700; color: var(--green); }
.ods-box .ods-sub { font-size: 10px; color: var(--text3); margin-top: 2px; }

/* ═══ PAPER LAYER ROW ═══ */
.paper-layer-row { display: grid; grid-template-columns: 120px 1fr 80px 80px 130px 130px; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); }
.paper-layer-row:last-child { border-bottom: none; }
.paper-layer-row label { font-size: 10px; margin-bottom: 2px; }
.paper-layer-row input, .paper-layer-row select { padding: 7px 9px; font-size: 12px; }
.paper-layer-row .paper-name-auto { font-family: var(--mono); font-size: 11px; color: var(--primary); font-weight: 600; padding: 8px 0; white-space: nowrap; }

/* ═══ LOADING SPINNER ═══ */
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border2); border-top-color: var(--primary); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay { position: fixed; inset: 0; background: rgba(255,255,255,.75); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); z-index: 999; display: flex; align-items: center; justify-content: center; }
.loading-overlay .spinner { width: 36px; height: 36px; border-width: 3px; }

/* ═══ SCROLLBAR ═══ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border3); }

/* ═══ PRINT ═══ */
@media print {
  .sidebar, .topbar, .no-print, #auth-screen { display: none !important; }
  .main { margin-left: 0 !important; }
  .plan-output { border: none; box-shadow: none; }
  @page { size: A4 portrait; margin: 12mm 10mm; }
  body { font-size: 11px !important; }
  .plan-output-header { padding: 16px 20px !important; }
  .plan-output-header h2 { font-size: 16px !important; }
  .plan-section { padding: 12px 20px !important; }
  .plan-section-title { font-size: 9px !important; margin-bottom: 8px !important; }
  .plan-kv { font-size: 11px !important; grid-template-columns: 140px 1fr !important; gap: 3px 12px !important; }
  .plan-paper-grid { gap: 8px !important; }
  .plan-paper-card { padding: 8px 10px !important; }
  .plan-paper-card h4 { font-size: 9px !important; margin-bottom: 4px !important; }
  .plan-paper-card .val { font-size: 11px !important; }
  .mat-req-table { font-size: 10px !important; }
  .mat-req-table th { padding: 4px 6px !important; font-size: 8px !important; }
  .mat-req-table td { padding: 4px 6px !important; font-size: 10px !important; }
}

/* ═══ MOBILE RESPONSIVE ═══ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s cubic-bezier(.4,0,.2,1); width: 280px; }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 99; }
  .sidebar-overlay.open { display: block !important; }
  .main { margin-left: 0 !important; }
  .topbar { padding: 10px 14px; }
  .topbar-title { font-size: 15px; }
  .mobile-menu-btn { display: flex !important; align-items: center; justify-content: center; width: 38px; height: 38px; background: none; border: 1.5px solid var(--border2); border-radius: var(--r); cursor: pointer; color: var(--text); margin-right: 10px; transition: all var(--transition); }
  .mobile-menu-btn:hover { background: var(--surface3); }
  .content { padding: 16px 14px; }
  .stat-grid { grid-template-columns: 1fr 1fr !important; gap: 10px; }
  .stat-value { font-size: 22px; }
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr !important; }
  .form-row { grid-template-columns: 1fr !important; }
  .paper-layer-row { grid-template-columns: 1fr 1fr !important; gap: 6px !important; padding: 10px 8px !important; }
  .plan-kv { grid-template-columns: 120px 1fr !important; gap: 3px 10px !important; font-size: 12px !important; }
  .plan-section { padding: 14px 16px !important; }
  .plan-output-header { padding: 16px !important; }
  .plan-output-header h2 { font-size: 16px !important; }
  .plan-paper-grid { grid-template-columns: 1fr !important; }
  .modal { max-width: 95vw; margin: 8px auto; }
  .modal-body { padding: 16px; max-height: 80vh; }
  .modal-header { padding: 14px 18px; }
  .data-table { font-size: 11px; }
  .data-table th, .data-table td { padding: 7px 8px; }
  .btn { padding: 8px 14px; font-size: 12px; }
  .auth-card { max-width: 100%; }
  .auth-body { padding: 22px; }
}

@media (min-width: 769px) {
  .mobile-menu-btn { display: none !important; }
  .sidebar-overlay { display: none !important; }
  .sidebar { transform: none !important; width: 240px !important; }
  .main { margin-left: 240px !important; }
}