:root{
  --bg:#f1dfcd;
  --sheet:#e9cfe0;
  --text:#2a2230;
  --card:#ffffff;
  --shadow:0 8px 24px rgba(0,0,0,.12);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
.app{max-width:960px;margin-inline:auto;min-height:100dvh;display:flex;flex-direction:column;background:linear-gradient(180deg,#f1dfcd 0%,#f6eadd 60%,#f1dfcd 100%)}

/* Topbar */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:.5rem;padding:14px 16px;background:var(--sheet);backdrop-filter:saturate(1.2) blur(6px);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.icon-btn{border:0;background:transparent;font-size:20px;cursor:pointer;color:var(--text);padding:6px;border-radius:12px}
.icon-btn:active{transform:scale(.98)}
.title{font-size:22px;font-weight:800;margin:0 auto 0 0}

/* Views */
.view{display:none;padding:18px}
.view.active{display:block}
.section-title{margin:6px 0 18px;font-size:24px}
.subjects{display:grid;grid-template-columns:repeat(2, minmax(0,1fr));gap:16px}
@media(min-width:700px){.subjects{grid-template-columns:repeat(3, minmax(0,1fr));}}
.card{border-radius:22px;padding:22px;box-shadow:var(--shadow);color:#fff;position:relative;overflow:hidden;cursor:pointer;transition:transform .12s ease}
.card:active{transform:translateY(2px)}
.card .emoji{font-size:34px;opacity:.95}
.card h3{margin:10px 0 0;font-size:20px}
.grad-blue{background:linear-gradient(135deg,#4e86b8,#5aa0c8)}
.grad-green{background:linear-gradient(135deg,#4a9c4f,#6eb16e)}
.grad-orange{background:linear-gradient(135deg,#d27a2e,#e09b55)}
.grad-purple{background:linear-gradient(135deg,#8b3bb2,#b660c5)}
.grad-brown{background:linear-gradient(135deg,#75503e,#9b6c56)}
.grad-slate{background:linear-gradient(135deg,#5c6a6e,#7a878a)}

.tip{margin-top:18px;background:var(--sheet);padding:14px;border-radius:16px}

/* Tabs */
.tabs{display:flex;gap:18px;border-bottom:1px solid rgba(0,0,0,.08);padding-inline:6px;margin-bottom:10px}
.tab{position:relative;display:flex;align-items:center;gap:8px;padding:10px 8px;cursor:pointer;color:#5b4f62;background:none;border:0}
.tab.active{color:#2b2130;font-weight:700}
.tab.active::after{content:"";position:absolute;inset-inline:0;bottom:-1px;height:3px;border-radius:6px;background:#b57fbf}

/* Empty states */
.empty{text-align:center;padding:18vh 16px;color:#8a7b91}
.empty .big{font-size:64px;opacity:.3;display:block;margin-bottom:14px}

/* Notes */
.notes{display:grid;gap:12px}
.note{background:var(--card);border-radius:16px;padding:14px 14px 12px;box-shadow:var(--shadow);position:relative}
.note h4{margin:0 0 6px;font-size:16px}
.note p{margin:0 0 8px;color:#5a4f61}
.note .meta{font-size:12px;color:#8f8196}
.note .actions{position:absolute;inset-inline-end:8px;top:8px;display:flex;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;background:#efecf2;color:#584b64;padding:6px 10px;border-radius:999px;font-size:12px}

/* FAB */
.fab{position:fixed;inset-inline-end:18px;bottom:22px;width:64px;height:64px;border-radius:20px;border:0;cursor:pointer;background:var(--sheet);box-shadow:var(--shadow);font-size:28px;color:#492d57}

/* Dialog */
dialog{border:0;border-radius:18px;box-shadow:var(--shadow);width:min(580px,92vw);padding:0}
dialog::backdrop{background:rgba(0,0,0,.25)}
.modal-head{background:var(--sheet);padding:14px 16px;border-top-left-radius:18px;border-top-right-radius:18px}
.modal-body{padding:16px}
.field{display:grid;gap:6px;margin-bottom:12px}
input[type="text"], textarea{width:100%;border:1px solid #d7c6de;background:#fff;border-radius:12px;padding:12px;font-size:15px;outline:none}
textarea{min-height:120px;resize:vertical}
.row{display:flex;gap:10px;justify-content:flex-end}
.btn{border:0;border-radius:12px;padding:10px 14px;cursor:pointer}
.btn.primary{background:#7f4ca0;color:#fff}
.btn.ghost{background:#efe7f3;color:#5a406d}

.hide{display:none!important}