/* ============================================================
   „Pas cu pas” — stiluri comune pentru problemele cu notițe
   Paleta paginii Matematică Aplicată: verde tablă, crem, auriu
   ============================================================ */
:root {
  --verde-tabla: #2f5d3a;
  --verde-mediu: #3f7a4a;
  --verde-soft: #e8f0e4;
  --crem: #faf5e6;
  --crem-inchis: #efe7cf;
  --auriu: #c9a14a;
  --auriu-soft: #fbf1d9;
  --ink: #1f2a23;
  --muted: #4b5a50;
  --line: #ddd3b8;
  --ok: #2e7d32;
  --ok-soft: #e3f3e4;
  --warn: #8a5a0c;
  --warn-soft: #fbf0dc;
  --umbra-card: 0 6px 20px rgba(47, 93, 58, 0.15);
  --f-math: 'Cambria Math', 'Times New Roman', serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--crem);
  color: var(--ink);
  font-family: var(--font-body, 'Nunito', system-ui, sans-serif);
  font-size: 18px;
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(47, 93, 58, 0.05) 1px, transparent 2px),
    radial-gradient(circle at 80% 60%, rgba(201, 161, 74, 0.06) 1px, transparent 2px);
  background-size: 60px 60px, 80px 80px;
}
h1, h2, h3 { color: var(--verde-tabla); letter-spacing: normal; line-height: 1.2; margin: 0; }
h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h2 { font-size: clamp(1.25rem, 3vw, 1.6rem); }
h3 { font-size: 1.15rem; }
p { color: inherit; margin: 0; line-height: inherit; }
a { color: var(--verde-tabla); }

.pagina { max-width: 1200px; margin: 0 auto; padding: 16px 16px 48px; display: flex; flex-direction: column; gap: 18px; }
.inapoi { align-self: flex-start; font-weight: 700; text-decoration: none; font-size: 0.95rem; }
.inapoi:hover { color: var(--auriu); }
.eyebrow { font-size: 0.78rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--verde-mediu); }

/* ===== Antet ===== */
.antet {
  background: linear-gradient(135deg, var(--verde-tabla) 0%, var(--verde-mediu) 100%);
  color: var(--crem);
  border-radius: 14px;
  padding: clamp(18px, 4vw, 28px);
  box-shadow: var(--umbra-card);
  display: flex; flex-direction: column; gap: 10px;
}
.antet h1 { color: var(--crem); }
.antet p { color: #dbe9d4; max-width: 70ch; }
.badge { align-self: flex-start; background: var(--auriu); color: var(--verde-tabla); font-weight: 800; font-size: 0.78rem; padding: 3px 10px; border-radius: 8px; letter-spacing: 0.03em; text-transform: uppercase; }

/* ===== Butoane ===== */
button, .buton {
  font: inherit; font-weight: 700; font-size: 1rem;
  cursor: pointer; border-radius: 24px;
  border: 2px solid var(--verde-mediu); background: var(--verde-mediu); color: var(--crem);
  padding: 9px 20px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  min-height: 44px;
}
button:hover, .buton:hover { background: var(--verde-tabla); border-color: var(--verde-tabla); }
button.secundar, .buton.secundar { background: #fff; color: var(--verde-tabla); }
button.secundar:hover, .buton.secundar:hover { background: var(--verde-soft); }
button.discret { background: transparent; border-color: transparent; color: var(--muted); font-weight: 600; text-decoration: underline; padding: 6px 8px; }
button.discret:hover { color: var(--verde-tabla); background: transparent; }
button:focus-visible, .buton:focus-visible, textarea:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--auriu); outline-offset: 2px;
}
.butoane { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* ===== Selector niveluri ===== */
.niveluri { display: flex; flex-wrap: wrap; gap: 8px; }
.niveluri a {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--crem); text-decoration: none; font-weight: 700; font-size: 0.95rem;
  border: 1px solid var(--auriu); border-radius: 999px; padding: 6px 14px;
  background: rgba(201, 161, 74, 0.15); min-height: 40px;
}
.niveluri a:hover { background: rgba(201, 161, 74, 0.35); }
.niveluri a[aria-current="page"] { background: var(--auriu); color: var(--verde-tabla); }
.niveluri .bifa { color: #b9f0bd; }
.niveluri a[aria-current="page"] .bifa { color: var(--verde-tabla); }

/* ===== Aranjare: enunț + lucru ===== */
.layout { display: grid; gap: 18px; align-items: start; }
@media (min-width: 900px) {
  .layout { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .enunt-box { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow: auto; }
  .comuta-enunt { display: none !important; }
}
@media (max-width: 899px) {
  .enunt-box {
    position: sticky; top: 0; z-index: 10;
    max-height: 42vh; overflow: auto;
    margin: 0 -16px; border-radius: 0 0 14px 14px !important;
    border-top: 0 !important;
  }
  .enunt-box.mic { max-height: 9.5em; }
  /* pe telefon, întrebarea și butonul de micșorare stau sus, mereu vizibile */
  .enunt-box .comuta-enunt { order: -4; align-self: flex-end; margin-bottom: -6px; }
  .enunt-box .eyebrow { order: -3; }
  .enunt-box h2 { order: -2; }
  .enunt-box .intrebare { order: -1; }
  .niveluri { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .niveluri a { font-size: 0.8rem; padding: 5px 10px; justify-content: center; text-align: center; line-height: 1.25; }
}

.enunt-box {
  background: #fff;
  border-radius: 14px;
  border-top: 4px solid var(--auriu);
  box-shadow: var(--umbra-card);
  padding: 18px;
  display: flex; flex-direction: column; gap: 10px;
}
.enunt-box .enunt { font-size: 1.05rem; }
.enunt-box .enunt p + p { margin-top: 8px; }
.intrebare { background: var(--auriu-soft); border-left: 4px solid var(--auriu); border-radius: 8px; padding: 10px 12px; font-weight: 700; }
.comuta-enunt { align-self: flex-start; min-height: 36px; padding: 4px 14px; font-size: 0.9rem; }
.mate { font-family: var(--f-math); white-space: nowrap; }

.lucru {
  background: #fff;
  border-radius: 14px;
  border-top: 4px solid var(--verde-mediu);
  box-shadow: var(--umbra-card);
  padding: clamp(16px, 3vw, 26px);
  display: flex; flex-direction: column; gap: 18px;
  min-width: 0;
}
.sfat { background: var(--verde-soft); border-radius: 10px; padding: 12px 14px; color: var(--verde-tabla); }
.sfat b { color: var(--verde-tabla); }

/* ===== Câmpuri de notițe ===== */
.camp { display: flex; flex-direction: column; gap: 6px; }
.camp label { font-weight: 800; color: var(--verde-tabla); }
.camp label .indiciu { font-weight: 600; color: var(--muted); }
textarea, input[type="text"], select {
  font: inherit; font-size: 1.05rem; color: var(--ink);
  background: var(--crem); border: 2px solid var(--line); border-radius: 10px;
  padding: 10px 12px; width: 100%;
}
textarea { resize: vertical; min-height: 3.2em; line-height: 1.5; overflow: hidden; }
textarea:focus, input[type="text"]:focus, select:focus { border-color: var(--verde-mediu); background: #fff; }
.caiet {
  border: 2px dashed var(--line); border-radius: 12px; padding: 18px; text-align: center; color: var(--muted);
  display: flex; flex-direction: column; gap: 8px; align-items: center;
}
.caiet .icon { font-size: 2.4rem; }
.caiet ol { text-align: left; margin: 0; padding-left: 1.2em; }

.raspuns-final { border-top: 2px dashed var(--line); padding-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.raspuns-rand { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.raspuns-rand input { width: 9em; text-align: center; font-weight: 700; }
.raspuns-rand .unitate { font-weight: 700; color: var(--muted); }

/* ===== Panouri (invitație, verificare, răspuns) ===== */
.panou { border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.panou.bland { background: var(--auriu-soft); border-left: 4px solid var(--auriu); }
.panou.verde { background: var(--ok-soft); border-left: 4px solid var(--ok); }
.panou.cald { background: var(--warn-soft); border-left: 4px solid var(--auriu); }
.panou h3 { font-size: 1.1rem; }
.mesaj { font-weight: 600; }
.mesaj:empty { display: none; }

/* ===== Comparare ===== */
.compar { display: flex; flex-direction: column; gap: 14px; }
.pas-cmp { border: 1px solid var(--line); border-radius: 12px; padding: 14px; display: flex; flex-direction: column; gap: 10px; background: #fff; }
.pas-cmp .titlu { font-weight: 800; color: var(--verde-tabla); }
.cmp-grid { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .cmp-grid.doua { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.cmp-col { border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 4px; }
.cmp-col .cine { font-size: 0.8rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; }
.cmp-col.tu { background: var(--crem); }
.cmp-col.tu .cine { color: var(--warn); }
.cmp-col.sol { background: var(--verde-soft); }
.cmp-col.sol .cine { color: var(--verde-tabla); }
.cmp-col .text { white-space: pre-wrap; overflow-wrap: anywhere; }
.cmp-col .gol { color: var(--muted); font-style: italic; }

.autoeval { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.autoeval .eticheta { font-weight: 700; font-size: 0.95rem; color: var(--muted); margin-right: 4px; }
.autoeval button { background: #fff; color: var(--ink); border: 2px solid var(--line); font-weight: 600; font-size: 0.92rem; padding: 6px 12px; min-height: 40px; }
.autoeval button:hover { background: var(--crem); }
.autoeval button[aria-pressed="true"].da { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.autoeval button[aria-pressed="true"].partial { background: var(--auriu-soft); border-color: var(--auriu); color: var(--warn); }
.autoeval button[aria-pressed="true"].nu { background: #f3ede0; border-color: #b9ab8a; color: var(--muted); }

/* ===== Tabel (ziua săptămânii) ===== */
.tabel-wrap { overflow-x: auto; }
table.ani { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; font-size: 0.98rem; }
table.ani th, table.ani td { border: 1px solid var(--line); padding: 5px 6px; text-align: center; }
table.ani th { background: var(--crem-inchis); color: var(--verde-tabla); font-size: 0.85rem; }
table.ani td.an { font-weight: 700; }
table.ani tr.bisect td.an { color: var(--warn); }
table.ani tr.tinta td { background: var(--ok-soft); font-weight: 800; }
table.ani input, table.ani select { padding: 4px 4px; font-size: 1rem; text-align: center; border-radius: 6px; }
table.ani input { width: 3.2em; }
table.ani select { width: auto; min-width: 4.2em; }

/* ===== Listă ===== */
.grupa { display: flex; flex-direction: column; gap: 14px; }
.grupa > h2 { border-bottom: 3px solid var(--auriu); padding-bottom: 6px; }
.lista { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.prob-card {
  background: #fff; border-radius: 14px; border-top: 4px solid var(--verde-mediu); box-shadow: var(--umbra-card);
  padding: 20px; display: flex; flex-direction: column; gap: 12px;
}
.prob-card .icon { font-size: 2.4rem; line-height: 1; }
.prob-card p { color: var(--muted); }
.nivel-link {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  border: 2px solid var(--line); border-radius: 12px; padding: 8px 12px; text-decoration: none; color: var(--ink);
  min-height: 48px; background: var(--crem);
}
.nivel-link:hover { border-color: var(--verde-mediu); background: var(--verde-soft); }
.nivel-link b { color: var(--verde-tabla); }
.nivel-link small { color: var(--muted); display: block; font-size: 0.85rem; }
.nivel-link .stare { font-weight: 800; color: var(--ok); white-space: nowrap; }
.legenda { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.legenda div { background: #fff; border-radius: 12px; padding: 12px 14px; border-left: 4px solid var(--auriu); box-shadow: 0 2px 8px rgba(47, 93, 58, 0.08); }

footer.subsol { text-align: center; color: var(--muted); font-size: 0.9rem; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }