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

:root{
  --ink:#12211A; --ink-soft:#3B4A41; --paper:#F3F3EA; --paper-deep:#E3E3D2;
  --paper-line:#D8D8C8; --pine:#1F3D2E; --pine-deep:#0F1D16; --moss:#4C7A5E;
  --gold:#B8862F; --gold-light:#D7AE5C; --rust:#8A4A2E; --cream:#FFFFFF;
  --f-body:'IBM Plex Sans',Segoe UI,Arial,sans-serif; --f-mono:'IBM Plex Mono',monospace;
  --radius:6px; --shadow:0 1px 2px rgba(15,29,22,.06), 0 6px 18px -10px rgba(15,29,22,.25);
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{ margin:0; font-family:var(--f-body); background:var(--paper); color:var(--ink); font-size:15px; line-height:1.55; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,p{ margin:0; }
img{ max-width:100%; }

/* Scrollbar styling */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: #B4B4A4; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--moss); }

/* Layout Shell: Sticky Sidebar */
.admin-shell{ display:flex; min-height:100vh; position:relative; }
.admin-sidebar{
  width:250px; flex:none; background:var(--pine-deep); color:var(--cream); padding:24px 16px;
  display:flex; flex-direction:column; gap:6px;
  position:sticky; top:0; height:100vh; overflow-y:auto; align-self:flex-start;
  z-index:100;
}
.admin-sidebar .brand{ display:flex; align-items:center; gap:10px; padding:0 6px 18px; border-bottom:1px solid rgba(255,255,255,.12); margin-bottom:14px; }
.admin-sidebar .brand img{ height:32px; width:auto; }
.admin-sidebar .brand strong{ font-size:.95rem; line-height:1.2; }
.admin-sidebar .brand small{ display:block; font-size:.68rem; color:rgba(255,255,255,.55); margin-top:2px; }
.admin-nav-group{ font-family:var(--f-mono); font-size:.65rem; letter-spacing:.08em; text-transform:uppercase; color:var(--gold-light); margin:14px 8px 4px; }
.admin-nav a{
  display:block; padding:9px 12px; border-radius:4px; font-size:.86rem; color:rgba(255,255,255,.78);
  transition:background .15s, color .15s;
}
.admin-nav a:hover{ background:rgba(255,255,255,.07); color:#fff; }
.admin-nav a.active{ background:var(--gold); color:var(--pine-deep); font-weight:600; }
.admin-sidebar .logout{ margin-top:auto; padding-top:14px; border-top:1px solid rgba(255,255,255,.12); }
.admin-sidebar .logout a{ color:var(--gold-light); font-size:.84rem; display:inline-block; font-weight:500; }
.admin-sidebar .logout a:hover{ text-decoration:underline; }

/* Main Area & Sticky Topbar */
.admin-main{ flex:1; padding:0 34px 60px; min-width:0; max-width:1400px; }
.admin-topbar{
  position:sticky; top:0; z-index:90;
  background:rgba(243,243,234,0.95); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  padding:20px 0 16px; margin-bottom:20px;
  border-bottom:1px solid var(--paper-line);
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
}
.admin-topbar h1{ font-size:1.35rem; font-weight:700; color:var(--pine-deep); }
.admin-topbar .muted{ color:var(--ink-soft); font-size:.85rem; }
.admin-topbar .topbar-actions{ display:flex; align-items:center; gap:10px; }

/* Cards */
.card{ background:var(--cream); border:1px solid var(--paper-line); border-radius:var(--radius); padding:20px 22px; margin-bottom:20px; box-shadow:var(--shadow); }
.card h2{ font-size:1.05rem; font-weight:700; margin-bottom:4px; color:var(--pine-deep); }
.card .hint{ color:var(--ink-soft); font-size:.82rem; margin-bottom:14px; }
.card-header-flex{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:14px; flex-wrap:wrap; }
.card-header-flex h2{ margin-bottom:0; }

/* Dashboard Stat Cards */
.stat-cards{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }
@media (max-width:960px){ .stat-cards{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .stat-cards{ grid-template-columns:1fr; } }
.stat-card{ background:var(--cream); border:1px solid var(--paper-line); border-radius:var(--radius); padding:18px 20px; box-shadow:var(--shadow); }
.stat-card .num{ font-size:1.8rem; font-weight:700; font-family:var(--f-mono); color:var(--pine); }
.stat-card .label{ font-size:.78rem; color:var(--ink-soft); margin-top:4px; }

/* 2-Column Split Layout for CRUD (Form Left/Sticky, Table Right) */
.admin-split-layout{
  display:grid; grid-template-columns:390px 1fr; gap:22px; align-items:start;
}
.admin-split-form{
  position:sticky; top:84px;
}
@media (max-width:1080px){
  .admin-split-layout{ grid-template-columns:1fr; }
  .admin-split-form{ position:static; }
}

/* Tabs Interface */
.admin-tabs{ margin-bottom:20px; }
.tab-nav{
  display:flex; gap:6px; border-bottom:2px solid var(--paper-line); margin-bottom:20px; overflow-x:auto; padding-bottom:0;
}
.tab-btn{
  background:none; border:none; border-bottom:3px solid transparent; margin-bottom:-2px;
  padding:10px 18px; font-family:var(--f-body); font-size:.9rem; font-weight:600;
  color:var(--ink-soft); cursor:pointer; display:inline-flex; align-items:center; gap:8px;
  border-radius:4px 4px 0 0; transition:all .15s ease; white-space:nowrap;
}
.tab-btn:hover{ color:var(--pine); background:rgba(184,134,47,.08); }
.tab-btn.active{
  color:var(--pine-deep); border-bottom-color:var(--gold); background:var(--cream);
  box-shadow:0 -2px 6px rgba(0,0,0,.03);
}
.tab-badge{
  font-size:.72rem; font-family:var(--f-mono); background:var(--paper-deep); color:var(--ink-soft);
  padding:2px 7px; border-radius:12px; font-weight:600;
}
.tab-btn.active .tab-badge{ background:var(--gold); color:var(--pine-deep); }
.tab-pane{ display:none; }
.tab-pane.active{ display:block; animation:fadeIn .2s ease-in-out; }
@keyframes fadeIn{ from{ opacity:.3; transform:translateY(3px); } to{ opacity:1; transform:translateY(0); } }

/* Sticky Save Bar */
.sticky-save-bar{
  position:sticky; bottom:16px; z-index:80;
  background:var(--pine-deep); color:#fff; padding:12px 20px; border-radius:var(--radius);
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  box-shadow:0 10px 30px rgba(0,0,0,.3); margin-top:20px; border:1px solid rgba(255,255,255,.12);
}
.sticky-save-bar .save-info{ font-size:.85rem; color:rgba(255,255,255,.8); }

/* Tables & Sticky Headers */
table{ width:100%; border-collapse:collapse; font-size:.88rem; }
th,td{ text-align:left; padding:10px 12px; border-bottom:1px solid var(--paper-line); vertical-align:middle; }
th{ font-family:var(--f-mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.04em; color:var(--ink-soft); background:var(--paper-deep); }
tr:hover td{ background:rgba(184,134,47,.05); }
.table-wrap{ overflow-x:auto; }

/* Sticky Table Container */
.table-sticky-wrap{
  max-height:calc(100vh - 270px); min-height:220px; overflow:auto;
  border:1px solid var(--paper-line); border-radius:var(--radius);
}
.table-sticky-wrap table{ margin:0; }
.table-sticky-wrap th{
  position:sticky; top:0; z-index:5; background:var(--paper-deep);
  box-shadow:0 1px 0 var(--paper-line);
}

.thumb{ width:54px; height:40px; object-fit:cover; border-radius:3px; background:var(--paper-deep); display:block; }

/* Pagination */
.pagination-wrap{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  margin-top:16px; padding-top:14px; border-top:1px solid var(--paper-line); font-size:.84rem;
}
.pagination-info{ color:var(--ink-soft); font-size:.82rem; }
.pagination{ display:flex; gap:4px; list-style:none; padding:0; margin:0; align-items:center; }
.pagination a, .pagination span{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:32px; height:32px; padding:0 8px; border-radius:4px;
  border:1px solid var(--paper-line); background:var(--cream); color:var(--ink);
  font-size:.82rem; font-weight:500; font-family:var(--f-mono);
}
.pagination a:hover{ border-color:var(--gold); color:var(--gold); }
.pagination .active{ background:var(--pine); border-color:var(--pine); color:#fff; font-weight:700; }
.pagination .disabled{ opacity:.4; pointer-events:none; background:var(--paper-deep); }

/* Floating Back-to-Top Button */
.back-to-top{
  position:fixed; bottom:28px; right:28px; width:44px; height:44px; border-radius:50%;
  background:var(--pine); color:#fff; border:2px solid var(--gold);
  box-shadow:0 6px 18px rgba(15,29,22,.3); display:flex; align-items:center; justify-content:center;
  cursor:pointer; opacity:0; visibility:hidden; transition:all .25s ease; z-index:999;
}
.back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
.back-to-top:hover{ background:var(--gold); color:var(--pine-deep); transform:translateY(-3px); }
.back-to-top svg{ width:20px; height:20px; fill:currentColor; }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px; padding:8px 15px; border-radius:4px; border:1px solid transparent;
  font-size:.82rem; font-weight:600; cursor:pointer; font-family:var(--f-body); text-decoration:none; white-space:nowrap;
  transition:all .15s ease;
}
.btn-primary{ background:var(--pine); color:#fff; }
.btn-primary:hover{ background:var(--pine-deep); }
.btn-gold{ background:var(--gold); color:var(--pine-deep); }
.btn-gold:hover{ background:var(--gold-light); }
.btn-outline{ border-color:var(--paper-line); background:var(--cream); color:var(--ink); }
.btn-outline:hover{ border-color:var(--gold); color:var(--gold); }
.btn-danger{ background:#fff; color:var(--rust); border-color:rgba(138,74,46,.4); }
.btn-danger:hover{ background:rgba(138,74,46,.08); }
.btn-sm{ padding:5px 10px; font-size:.76rem; }
.btn-row{ display:flex; gap:8px; flex-wrap:wrap; align-items:center; }

/* Forms */
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:14px 18px; margin-bottom:14px; }
.form-row.single{ grid-template-columns:1fr; }
.form-group{ display:flex; flex-direction:column; gap:5px; }
.form-group.full{ grid-column:1/-1; }
.form-group label{ font-size:.82rem; font-weight:600; }
.form-group .opt{ font-weight:400; color:var(--ink-soft); font-size:.76rem; }
input[type=text],input[type=email],input[type=tel],input[type=password],input[type=date],input[type=number],input[type=url],select,textarea{
  padding:9px 12px; border:1px solid var(--paper-line); border-radius:4px; font-family:inherit; font-size:.88rem; background:#fff; color:var(--ink);
  width:100%; transition:border-color .15s;
}
textarea{ resize:vertical; min-height:85px; }
input:focus,select:focus,textarea:focus{ outline:none; border-color:var(--gold); }
.checkbox-row{ display:flex; align-items:center; gap:8px; font-size:.86rem; cursor:pointer; }
.checkbox-row input{ width:auto; cursor:pointer; }

/* Badges & Alerts */
.badge{ font-family:var(--f-mono); font-size:.68rem; text-transform:uppercase; padding:3px 9px; border-radius:20px; display:inline-block; font-weight:600; }
.badge-pending{ background:rgba(184,134,47,.15); color:var(--gold); }
.badge-disetujui{ background:rgba(76,122,94,.15); color:var(--moss); }
.badge-ditolak{ background:rgba(138,74,46,.15); color:var(--rust); }

.alert{ padding:12px 16px; border-radius:4px; font-size:.88rem; margin-bottom:18px; border:1px solid transparent; }
.alert-success{ background:rgba(76,122,94,.12); border-color:var(--moss); color:var(--pine); }
.alert-error{ background:rgba(138,74,46,.1); border-color:var(--rust); color:var(--rust); }

/* Login Page */
.login-wrap{ min-height:100vh; display:flex; align-items:center; justify-content:center; background:var(--pine-deep); padding:20px; }
.login-box{ background:#fff; padding:36px 32px; border-radius:8px; width:100%; max-width:380px; box-shadow:0 20px 60px rgba(0,0,0,.3); }
.login-box h1{ font-size:1.3rem; margin-bottom:6px; color:var(--pine-deep); }
.login-box p.muted{ color:var(--ink-soft); font-size:.85rem; margin-bottom:22px; }
.login-box .form-group{ margin-bottom:14px; }

.section-title{ font-size:.75rem; text-transform:uppercase; letter-spacing:.06em; color:var(--rust); font-family:var(--f-mono); margin:20px 0 10px; font-weight:600; }
.divider{ border:none; border-top:1px solid var(--paper-line); margin:18px 0; }
.empty-row td{ text-align:center; color:var(--ink-soft); padding:26px; }

/* Responsive adjustments */
@media (max-width:820px){
  .admin-shell{ flex-direction:column; }
  .admin-sidebar{ width:100%; height:auto; position:static; }
  .admin-main{ padding:0 16px 40px; }
  .form-row{ grid-template-columns:1fr; }
}