/* =========================
   Fonts (self-hosted)
   ========================= */
@font-face{
  font-family:"BeVietnamProLocal";
  src:url("../fonts/BeVietnamPro-Regular.ttf") format("truetype");
  font-weight:400;font-style:normal;font-display:swap
}
@font-face{
  font-family:"SairaStencilOneLocal";
  src:url("../fonts/SairaStencilOne-Regular.ttf") format("truetype");
  font-weight:400;font-style:normal;font-display:swap
}

/* Body + Heading font */
body{
  font-family:"BeVietnamProLocal",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif
}
#page-heading{
  font-family:"SairaStencilOneLocal","BeVietnamProLocal",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  letter-spacing:.3px;
  margin-top:10px;margin-bottom:20px
}

/* =========================
   Theme palettes
   ========================= */
:root{
  --bg:#f6f7fb;
  --bg-blur:rgba(255,255,255,.85);
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --panel:#ffffff;
  --panel-2:#ffffff;
  --shadow:0 24px 60px rgba(15,23,42,.12);
  --ring:rgba(37,99,235,.95);
  --ring-soft:rgba(37,99,235,.15);
  --dot:#f59e0b;
  --weekend-bg:rgba(37,99,235,.04);
}
.dark{
  --bg:#0b1020;
  --bg-blur:rgba(13,18,32,.65);
  --text:#e2e8f0;
  --muted:#94a3b8;
  --border:#334155;
  --panel:#0f172a;
  --panel-2:#0f172a;
  --shadow:0 24px 60px rgba(0,0,0,.35);
  --ring:rgba(99,102,241,.95);
  --ring-soft:rgba(99,102,241,.25);
  --dot:#f59e0b;
  --weekend-bg:rgba(99,102,241,.08);
}

/* =========================
   Base
   ========================= */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  background:radial-gradient(1200px 600px at 15% 0%,#e8edff 0%,transparent 60%) var(--bg);
  color-scheme:light;
}
.dark body{
  background:radial-gradient(1200px 600px at 15% 0%,#182143 0%,transparent 60%) var(--bg);
  color-scheme:dark;
}
.wrap{max-width:1120px;margin:0 auto;padding:26px 14px 28px}

/* =========================
   Heading
   ========================= */
.page-heading{
  margin:8px 0 18px;
  text-align:center;
  font-size:34px;font-weight:900;letter-spacing:.4px;
  background:linear-gradient(90deg,#2563eb,#8b5cf6);
  -webkit-background-clip:text;color:transparent;
}

/* =========================
   Topbar
   ========================= */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.card-lite{border:1px solid var(--border);border-radius:14px;background:var(--panel);padding:10px 12px;box-shadow:0 8px 24px rgba(15,23,42,.08)}
.topbar .left,.topbar .right{display:flex;align-items:center;gap:10px}
@media (max-width:720px){
  .topbar .left,.topbar .right{width:100%;justify-content:space-between}
}

/* Clock + TZ select */
.clock{
  font-variant-numeric:tabular-nums;padding:8px 10px;border-radius:12px;
  background:var(--panel);border:1px solid var(--border);color:var(--text)
}
.tz-select{
  min-width:220px;padding:8px 36px 8px 12px;border-radius:12px;
  border:1px solid var(--border);background:var(--panel);color:var(--text);
  appearance:none;-webkit-appearance:none
}
.tz-select:focus{outline:none;box-shadow:0 0 0 2px var(--ring)}
option{background:var(--panel);color:var(--text)} /* màu trong dropdown */

/* =========================
   Toolbar
   ========================= */
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0 14px}
.month-title{font-size:18px;font-weight:900;background:linear-gradient(90deg,#2563eb,#8b5cf6);-webkit-background-clip:text;color:transparent}
.spacer{flex:1}
.field{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:12px}
.field .select,.field .input{
  appearance:none;-webkit-appearance:none;border:1px solid var(--border);
  border-radius:12px;padding:8px 10px;font-size:14px;background:var(--panel);color:var(--text)
}

/* =========================
   Buttons
   ========================= */
.btn{
  border:1px solid var(--border);border-radius:12px;background:var(--panel);color:var(--text);
  padding:8px 12px;font-size:14px;cursor:pointer;
  box-shadow:0 1px 2px rgba(15,23,42,.06);
  transition:transform .12s ease,box-shadow .12s ease
}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,23,42,.12)}
.btn.solid{background:linear-gradient(90deg,#2563eb,#7c3aed);border-color:transparent;color:#fff}
.file-btn{position:relative;overflow:hidden}
.file-btn input{position:absolute;inset:0;opacity:0;cursor:pointer}

/* =========================
   Card
   ========================= */
.card{border:1px solid var(--border);border-radius:22px;background:var(--panel-2);padding:14px 14px 10px;box-shadow:var(--shadow)}
.hint{margin:10px 2px 0;color:var(--muted);font-size:12px}

/* =========================
   Grid (calendar)
   ========================= */
.week-header{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-bottom:8px}
.week-head{text-align:center;font-weight:700;font-size:12px;color:var(--muted);padding:4px 0;border-radius:8px}
.week-head.weekend{background:var(--weekend-bg)}
.grid-days{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}

/* Cell */
.cell{position:relative;min-height:82px;background:var(--panel);border:1px solid var(--border);border-radius:18px;transition:box-shadow .15s ease,transform .15s ease}
.cell:hover{box-shadow:0 16px 28px rgba(15,23,42,.16);transform:translateY(-1px)}
.cell.muted{opacity:.55}
.cell.weekend{background:linear-gradient(0deg,var(--weekend-bg),var(--panel) 30%)}
.cell.dim{opacity:.18}

/* Numbers */
.solar{position:absolute;top:8px;left:10px;font-weight:800;font-size:14px}
.lunar{position:absolute;bottom:8px;right:10px;opacity:.85;font-size:12px}

/* Today highlight (ưu tiên cao nhất) */
.cell.today-cell{
  box-shadow:
    0 0 0 2px rgba(99,102,241,.9) inset,
    0 0 0 5px rgba(99,102,241,.35) !important;
  border-color:transparent !important;
}

/* Hoàng đạo / Hắc đạo (không lấn át hôm nay) */
.cell.hoangdao:not(.today-cell){box-shadow:0 0 0 2px rgba(56,189,248,.8) inset}
.cell.hacdao:not(.today-cell){box-shadow:0 0 0 1px rgba(148,163,184,.45) inset}

/* Note dot */
.dot{position:absolute;left:10px;bottom:8px;width:6px;height:6px;border-radius:999px;background:var(--dot);box-shadow:0 0 0 3px rgba(245,158,11,.18)}
.dot-muted{background:#94a3b8!important;opacity:.7}

/* Moon icon (top-right) */
.moon{position:absolute;right:10px;top:8px;font-size:22px;opacity:.9;pointer-events:none}

/* Icon ghi chú ở giữa cell */
.cell .note-icon{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:18px;opacity:.75;pointer-events:none;z-index:2
}

/* =========================
   Tooltip
   ========================= */
#lvn-tooltip{position:fixed;z-index:1000;pointer-events:none;transform:translate(-50%,-100%);display:none;min-width:220px;max-width:320px}
#lvn-tooltip .box{border:1px solid var(--border);background:var(--panel);border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.18);padding:10px;color:var(--text)}
#lvn-tip-content{font-size:13px;line-height:1.45}
.tip-title{font-weight:700;margin-bottom:6px}
.tip-row{display:flex;gap:8px;margin:4px 0;align-items:flex-start}
.tip-row .b{width:8px;height:8px;border-radius:999px;margin-top:6px;display:inline-block}
.b-emerald{background:#10b981}.b-amber{background:#f59e0b}
.tip-empty{color:var(--muted)}

/* Responsive tweaks cho lịch */
@media (max-width:720px){
  .tz-select{min-width:160px}
  .cell{min-height:68px}
}

/* =========================
   Below actions (nút phía dưới)
   ========================= */
/* Mobile/Tablet mặc định dùng flex-wrap */
.below-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:stretch;
  justify-content:center;
  margin:14px 0;
}
.below-actions .btn{
  flex:1 1 150px;
  max-width:100%;
  min-height:42px;
  padding:10px 14px;
  border-radius:10px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis
}
.below-actions input[type="file"]{display:none}
.below-actions .btn-help{flex:0 0 auto}

/* Filter chiều rộng hợp lý khi rơi vào flex */
#noteFilter{flex:0 1 220px;width:220px;max-width:240px;min-width:160px}
@media (max-width:640px){
  #noteFilter{flex:1 1 100%;width:100%;max-width:100%;min-width:0}
}

/* Desktop ≥1200px: chia Grid 12 cột */
@media (min-width:1200px){
  .below-actions{
    display:grid !important;
    grid-template-columns:repeat(12,1fr);
    grid-auto-rows:44px;
    gap:12px;
    align-items:stretch;
    margin:14px auto;
    max-width:1100px
  }
  /* 6 nút đầu = mỗi nút 2 cột -> đều */
  .below-actions .btn{
    min-width:0;width:100%;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
    grid-column:span 2
  }
  /* Hàng filter + nút Help */
  #noteFilter{
    grid-column:1 / span 10;grid-row:auto;width:100%;max-width:none;min-width:0;height:44px
  }
  .below-actions .btn-help{
    grid-column:11 / span 2;grid-row:auto;min-width:0
  }
}

/* =========================
   Footer
   ========================= */
.footer{text-align:center;margin-top:12px}
.footer .hr{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:0 0 10px}
.made-line{font-weight:800;color:var(--text)}
.footer .author{color:var(--text);text-decoration:none}
.footer .author:hover{color:var(--text);text-decoration:none}
.footer .heart{color:#ef4444}

/* =========================
   Modal (ghi chú)
   ========================= */
.modal{position:fixed;inset:0;display:none;z-index:1200}
.modal.show{display:block}
.modal-overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);backdrop-filter:blur(2px)}
.modal-dialog{
  position:relative;max-width:560px;margin:8vh auto;background:var(--panel);
  border:1px solid var(--border);border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.35);
  padding:16px 16px 12px;color:var(--text)
}
.modal-dialog h3{margin:0 0 10px;font-size:18px;font-weight:800}
#noteTextarea{
  width:100%;resize:vertical;min-height:140px;border:1px solid var(--border);
  border-radius:12px;padding:10px;background:var(--panel);color:var(--text);font-family:inherit
}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:10px}

/* Form helpers (modal) */
.input,.select,textarea#noteTextarea{
  background:var(--panel);color:var(--text);
  border:1px solid var(--border);border-radius:10px;padding:8px 10px;outline:none;width:100%;font:inherit
}
.input:focus,.select:focus,textarea#noteTextarea:focus{
  border-color:rgba(99,102,241,.8);box-shadow:0 0 0 3px rgba(99,102,241,.2)
}
.select{appearance:none}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0}
.stack{display:flex;flex-direction:column;gap:6px;color:var(--muted);font-size:12px}
.color-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{width:28px;height:28px;border-radius:999px;border:1px solid var(--border);background:var(--panel);cursor:pointer}
.chip-green{background:#10b981}.chip-amber{background:#f59e0b}.chip-red{background:#ef4444}.chip-blue{background:#3b82f6}.chip-purple{background:#a855f7}
.chip.ring{box-shadow:0 0 0 2px rgba(99,102,241,.8)}

/* Bottom sheet cho mobile */
@media (max-width:640px){
  .modal-dialog{margin:0 auto;position:absolute;left:0;right:0;bottom:0;border-bottom-left-radius:0;border-bottom-right-radius:0}
}

/* =========================
   Print
   ========================= */
@media print{
  body{background:#fff;color:#000}
  .topbar,.toolbar,.below-actions,.hint,.footer{display:none!important}
  .page-heading{text-align:left;color:#000;background:none}
  .card{box-shadow:none;border:1px solid #ddd}
}