/* ============================================================
   ADMIN PANEL — Light Dashboard Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Roboto+Mono:wght@400;500&display=swap');

:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface2: #f8fafc;
  --surface3: #edf2f7;
  --border: #dce2ea;
  --border-s: #e6ecf2;
  --muted: #5f6368;
  --dim: #70757a;
  --mid: #8a919e;
  --text: #202124;
  --bright: #1d1f23;
  --white: #ffffff;

  --primary: #1a73e8;
  --primary-soft: rgba(26,115,232,0.12);
  --primary-strong: #1765c1;
  --success: #1e8e3e;
  --success-soft: rgba(30,142,62,0.14);
  --error: #d93025;
  --error-soft: rgba(217,48,37,0.12);
  --warning: #fbbc04;
  --warning-soft: rgba(251,188,4,0.12);

  --font-ui: 'Inter', system-ui, sans-serif;
  --font-mono: 'Roboto Mono', 'Courier New', monospace;

  --r: 12px;
  --r2: 16px;
  --r3: 20px;

  --dur: 0.22s;

  --sidebar-w: 260px;
  --topbar-h: 64px;
}

* { box-sizing: border-box; }
html { font-family: var(--font-ui); line-height: 1.5; scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

body {
  min-height: 100vh;
}

.admin-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) auto;
  min-height: 100vh;
}

.sidebar {
  grid-row: 1 / -1;
  background: var(--white);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sb-brand {
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
}
.sb-brand-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bright);
  line-height: 1.1;
}
.sb-brand-title em { color: var(--primary); font-style: normal; }
.sb-brand-sub {
  margin-top: 6px;
  font-size: .75rem;
  color: var(--mid);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.sb-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.sb-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-weight: 700;
}
.sb-user-name { font-weight: 600; color: var(--bright); }
.sb-role { font-size: .78rem; color: var(--muted); }

.sb-nav { padding: 12px 10px 0; display: grid; gap: 4px; }
.sb-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 14px;
  color: var(--dim);
  transition: background var(--dur), color var(--dur), transform var(--dur);
}
.sb-link:hover { background: var(--surface2); color: var(--primary); transform: translateX(1px); }
.sb-link.active { background: var(--primary-soft); color: var(--primary); }
.sb-link svg { width: 18px; height: 18px; }
.sb-badge {
  margin-left: auto;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface2);
  color: var(--mid);
  font-size: .72rem;
}

.sb-bottom {
  margin-top: auto;
  padding: 14px 12px 18px;
}
.sb-bottom .sb-link {
  padding: 11px 14px;
  border-radius: 14px;
  color: var(--muted);
  background: var(--surface2);
}

.topbar {
  grid-column: 2;
  height: var(--topbar-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 26px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--bright);
}
.topbar-title em { color: var(--primary); font-style: normal; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.main-content {
  grid-column: 2;
  padding: 24px 28px;
  background: var(--bg);
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--bright);
  margin: 0;
}
.page-title em { color: var(--primary); font-style: normal; }
.page-subtitle {
  font-size: .88rem;
  color: var(--muted);
  margin-top: 6px;
}
.page-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 18px 20px;
  box-shadow: 0 1px 2px rgba(60,64,67,0.08);
}
.stat-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--primary-soft);
  margin-bottom: 14px;
}
.stat-icon svg { width: 18px; height: 18px; color: var(--primary); }
.stat-label { font-size: .78rem; color: var(--muted); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .09em; }
.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; color: var(--bright); }
.stat-sub { font-size: .82rem; color: var(--dim); margin-top: 8px; }

.panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(60,64,67,0.08);
  margin-bottom: 18px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  background: #f8fafc;
}
.panel-title { font-size: 1rem; font-weight: 700; color: var(--bright); }
.panel-body { padding: 18px 22px; }
.panel-body-p0 { padding: 0; }
.panel-foot { padding: 14px 22px; border-top: 1px solid var(--border); background: var(--surface2); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background var(--dur), border-color var(--dur), color var(--dur), transform var(--dur);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-strong); }
.btn-secondary { background: var(--surface2); color: var(--bright); }
.btn-secondary:hover { background: var(--surface3); }
.btn-default { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-sm { padding: 7px 12px; font-size: .82rem; }
.btn-full { width: 100%; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-full { grid-column: 1 / -1; }
label { font-size: .83rem; color: var(--muted); }
input, select, textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface2); color: var(--bright); transition: border-color var(--dur), box-shadow var(--dur); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(26,115,232,.08); }
textarea { min-height: 112px; resize: vertical; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table thead { background: #f8fafc; }
.data-table th, .data-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--dim); }
.data-table tbody tr:hover { background: var(--surface2); }
.td-title { display: block; font-weight: 600; color: var(--bright); margin-bottom: 4px; }
.td-sub { display: block; color: var(--muted); font-size: .85rem; }

.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.badge-success { color: var(--success); background: var(--success-soft); }
.badge-default { color: var(--muted); background: var(--surface2); }
.badge-blue { color: var(--primary); background: rgba(26,115,232,.08); }
.badge-gold { color: #d97706; background: rgba(217,119,6,.08); }

table.data-table tr:last-child td { border-bottom: none; }

.empty-state { display: grid; gap: 10px; justify-items: center; padding: 36px 0; color: var(--muted); }
.empty-state svg { width: 48px; height: 48px; color: var(--border); }
.empty-state h3 { margin: 0; color: var(--bright); }

.alert { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-radius: 14px; margin-bottom: 18px; }
.alert-success { background: var(--success-soft); color: var(--success); border: 1px solid rgba(30,142,62,.15); }
.alert-error { background: var(--error-soft); color: var(--error); border: 1px solid rgba(217,48,37,.15); }
.alert-warning { background: var(--warning-soft); color: #7c5f00; border: 1px solid rgba(251,188,4,.25); }

.modal-backdrop { position: fixed; inset: 0; background: rgba(32,33,36,.45); display: none; align-items: center; justify-content: center; padding: 20px; z-index: 200; }
.modal-backdrop.active { display: flex; }
.modal { background: var(--white); border-radius: 18px; width: 100%; max-width: 420px; box-shadow: 0 20px 60px rgba(60,64,67,.18); overflow: hidden; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--border); }
.modal-title { margin: 0; font-size: 1rem; color: var(--bright); }
.modal-close { border: none; background: transparent; font-size: 1.1rem; cursor: pointer; color: var(--muted); }
.modal-body { padding: 18px 20px; color: var(--dim); }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 16px 20px; border-top: 1px solid var(--border); }

.pagination { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.pagination-meta { margin-left: auto; color: var(--muted); font-size: .85rem; }

.ajax-loader { position: fixed; top: var(--topbar-h); left: var(--sidebar-w); right: 0; height: 4px; background: rgba(26,115,232,.18); overflow: hidden; z-index: 150; opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.ajax-loader.active { opacity: 1; }
.spinner { width: 100%; height: 100%; background: linear-gradient(90deg, transparent, var(--primary), transparent); animation: loading 1.2s infinite; }
@keyframes loading { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }

/* Upload page helpers */
.upload-page { background: var(--bg); min-height: 100vh; }
.up-header, .up-hero, .up-stats, .up-main { max-width: 1120px; margin: 0 auto; }
.up-header { padding: 24px 28px 0; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.up-brand-icon { width: 44px; height: 44px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; display: grid; place-items: center; }
.up-brand-name { font-size: 1.2rem; font-weight: 700; color: var(--bright); }
.up-brand-tag { font-size: .78rem; color: var(--muted); margin-top: 4px; }
.up-header-right { display: flex; align-items: center; gap: 16px; }
.up-user-pill { display: flex; align-items: center; gap: 12px; background: var(--white); border: 1px solid var(--border); border-radius: 999px; padding: 10px 14px; }
.up-user-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; }
.up-user-name { font-weight: 600; color: var(--bright); }
.up-user-nim { font-size: .8rem; color: var(--muted); }
.up-logout { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--white); color: var(--dim); }
.up-hero { margin: 24px auto 16px; padding: 28px 28px 20px; background: var(--white); border: 1px solid var(--border); border-radius: var(--r2); box-shadow: 0 1px 2px rgba(60,64,67,.08); }
.up-hero-badge { font-size: .78rem; color: var(--primary); margin-bottom: 14px; text-transform: uppercase; letter-spacing: .14em; }
.up-hero-title { font-size: 2.2rem; margin: 0; color: var(--bright); line-height: 1.05; }
.up-hero-sub { margin-top: 14px; color: var(--muted); max-width: 700px; }
.up-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 20px auto; }
.up-stat { background: var(--white); border: 1px solid var(--border); border-radius: var(--r2); padding: 18px 20px; }
.up-stat-num { font-size: 1.75rem; font-weight: 700; color: var(--bright); }
.up-stat-label { font-size: .8rem; color: var(--muted); margin-top: 6px; }
.up-stat { display: grid; gap: 6px; }

.up-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r2); box-shadow: 0 1px 2px rgba(60,64,67,.08); }
.up-card-head { display: flex; align-items: center; gap: 14px; padding: 20px; border-bottom: 1px solid var(--border); }
.up-card-icon { width: 46px; height: 46px; background: var(--surface2); border-radius: 14px; display: grid; place-items: center; }
.up-card-title { font-size: 1.1rem; font-weight: 700; color: var(--bright); }
.up-card-sub { color: var(--muted); margin-top: 4px; }
.up-card-body { padding: 22px; }
.up-alert { border-radius: 14px; }
.up-alert-info { border: 1px solid rgba(26,115,232,.15); background: rgba(26,115,232,.08); color: var(--primary); }
.up-alert-error { border: 1px solid rgba(217,48,37,.15); background: rgba(217,48,37,.08); color: var(--error); }
.up-actions { margin-top: 24px; display: flex; justify-content: flex-end; gap: 12px; }

.up-drop { border-color: var(--border); background: var(--surface2); }
.up-drop-title, .up-drop-sub { color: var(--muted); }
.up-drop-icon { background: var(--surface); border-color: var(--border); }
.up-drop:hover { background: #f5f8fc; }
.up-drop:hover .up-drop-icon { border-color: var(--primary); }
.up-drop-icon svg { color: var(--primary); }

/* Login page */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at top left, rgba(26,115,232,0.16), transparent 28%),
              radial-gradient(circle at bottom right, rgba(26,115,232,0.08), transparent 30%),
              linear-gradient(180deg, #f6f9ff 0%, #eef4fb 55%, #ffffff 100%);
}
.login-grid-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(26,115,232,0.12), transparent 24%),
              radial-gradient(circle at bottom right, rgba(26,115,232,0.08), transparent 28%);
  pointer-events: none;
  z-index: -1;
}
.login-shell {
  width: 100%;
  max-width: 460px;
}
.login-card {
  background: var(--white);
  border: 1px solid #e6ebf3;
  border-radius: 28px;
  box-shadow: 0 30px 60px rgba(15,23,42,0.08);
  overflow: hidden;
}
.login-head {
  padding: 32px 28px 24px;
}
.login-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(26,115,232,0.12);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.login-title {
  margin: 18px 0 8px;
  font-size: 2rem;
  line-height: 1.05;
  color: var(--bright);
}
.login-title em { color: var(--primary); font-style: normal; }
.login-sub {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: .95rem;
}
.login-body {
  padding: 0 28px 28px;
}
.login-foot {
  padding: 20px 28px 28px;
  border-top: 1px solid #eef2f7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: .92rem;
  color: var(--muted);
}
.login-foot a {
  color: var(--primary);
  font-weight: 600;
}
.pw-wrap { position: relative; }
.pw-toggle {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--primary);
  font-size: .88rem;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 8px;
}
.field-hint {
  font-size: .8rem;
  color: var(--mid);
}
.login-alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 16px;
  background: var(--error-soft);
  color: var(--error);
  border: 1px solid rgba(217,48,37,.15);
  margin-bottom: 18px;
}
.login-body .form-group { margin-bottom: 18px; }
.login-body label { font-size: .92rem; color: var(--bright); }
.login-body input { min-height: 48px; }

@media (max-width: 520px) {
  .login-card { border-radius: 22px; }
  .login-head { padding: 24px 20px 18px; }
  .login-body { padding: 0 20px 24px; }
  .login-foot { flex-direction: column; align-items: flex-start; }
}

.up-footer { max-width: 1120px; margin: 36px auto 24px; padding: 18px 28px; background: var(--white); border: 1px solid var(--border); border-radius: var(--r2); display: flex; justify-content: space-between; align-items: center; color: var(--muted); }

@media (max-width: 860px) {
  .admin-layout { grid-template-columns: 1fr; grid-template-rows: auto; }
  .sidebar { position: relative; height: auto; width: 100%; }
  .topbar { grid-column: 1; }
  .main-content { grid-column: 1; padding: 18px; }
}

@media (max-width: 680px) {
  .page-header { flex-direction: column; align-items: stretch; }
  .form-grid { grid-template-columns: 1fr; }
  .panel-head, .panel-body, .panel-foot { padding: 16px; }
}