/* =====================================================================
   Teacher Application — modern, professional UI
   ===================================================================== */
:root {
  --primary:      #0062d1;   /* mtview.id deep blue  */
  --primary-2:    #6bb3e7;   /* mtview.id sky blue   */
  --accent:       #0062d1;
  --accent-soft:  #eaf4fc;
  --ok:           #16a34a;
  --ok-soft:      #ecfdf3;
  --err:          #dc2626;
  --err-soft:     #fef2f2;
  --ink:          #3a3b3d;
  --muted:        #636466;   /* mtview.id gray       */
  --line:         #e2e6ea;
  --bg:           #f8f8f8;   /* mtview.id off-white  */
  --card:         #ffffff;
  --radius:       14px;
  --shadow:       0 4px 20px rgba(0, 62, 120, .10);
  --shadow-sm:    0 1px 3px rgba(0, 62, 120, .08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 400px at 50% -120px, #e3f0fb 0%, rgba(227,240,251,0) 70%),
    var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrapper { max-width: 820px; margin: 0 auto; padding: 28px 18px 80px; }

/* ---------- Hero / letterhead ---------- */
.hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  padding: 34px 30px 30px;
  box-shadow: var(--shadow);
}
.hero::after {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(255,255,255,.12), transparent 70%);
}
.hero .eyebrow {
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: #b9cdec; font-weight: 600; margin-bottom: 8px;
}
.hero h1 { margin: 0 0 4px; font-size: 27px; font-weight: 800; letter-spacing: -.3px; }
.hero .school { font-size: 15px; font-weight: 600; color: #dbe6f8; }
.hero .meta { margin-top: 14px; font-size: 12.5px; color: #c3d3ec; line-height: 1.7; }
.hero .meta a { color: #fff; text-decoration: none; }

/* ---------- Sticky progress ---------- */
.progress-wrap {
  position: sticky; top: 0; z-index: 20;
  margin: 14px 0 22px;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(160%) blur(8px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm);
}
.progress-track {
  flex: 1; height: 8px; background: #e6ebf3; border-radius: 999px; overflow: hidden;
}
.progress-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--primary-2), var(--primary));
  border-radius: 999px;
  transition: width .35s ease;
}
.progress-label {
  font-size: 12.5px; font-weight: 700; color: var(--primary);
  white-space: nowrap; min-width: 92px; text-align: right;
}

/* ---------- Cards / sections ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 22px;
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 26px;
  background: linear-gradient(180deg, #fbfcfe, #f5f8fd);
  border-bottom: 1px solid var(--line);
}
.card-head .num {
  flex: 0 0 auto;
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
  font-weight: 800; font-size: 16px;
}
.card-head h2 { margin: 0; font-size: 18px; font-weight: 800; letter-spacing: -.2px; }
.card-head p  { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }
.card-body { padding: 8px 26px 22px; }

/* ---------- Form items ---------- */
.form-items { list-style: none; margin: 0; padding: 0; }
.form-item { padding: 16px 0; border-bottom: 1px solid #f2f4f7; }
.form-item:last-child { border-bottom: none; }
.form-item.plain { border-bottom: none; padding: 10px 0; }
.form-item hr { border: none; border-top: 1px dashed #d7dce4; margin: 4px 0; }

.field-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.form-number {
  font-weight: 800; color: var(--accent);
  font-size: 12.5px; min-width: 24px;
}
.form-label { font-weight: 600; color: #374151; }
.req-mark { color: var(--err); font-weight: 800; margin-left: 2px; }

.subsection {
  font-weight: 800; color: var(--primary);
  font-size: 13px; letter-spacing: .5px; text-transform: uppercase;
  margin: 10px 0 4px;
}
.note {
  font-size: 13px; color: var(--muted);
  background: #f8fafc; border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 10px 14px; border-radius: 8px;
}

/* ---------- Inputs ---------- */
.form-input {
  width: 100%;
  padding: 11px 13px;
  border: 1.5px solid #d5dbe4;
  border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--ink);
  background: #fff;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.form-input::placeholder { color: #9aa4b2; }
.form-input:hover { border-color: #b9c2cf; }
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0,98,209,.16);
}
textarea.form-input { resize: vertical; line-height: 1.5; }
.size_s { min-height: 68px; }
.size_m { min-height: 96px; }
.size_l { min-height: 132px; }
input[type=file].form-input { padding: 9px 12px; background: #fafbfd; cursor: pointer; }

/* validation states on the item container */
.form-item.is-valid   .form-input { border-color: var(--ok); }
.form-item.is-valid   .form-input:focus { box-shadow: 0 0 0 4px rgba(22,163,74,.14); }
.form-item.is-invalid .form-input { border-color: var(--err); background: var(--err-soft); }
.form-item.is-invalid .form-input:focus { box-shadow: 0 0 0 4px rgba(220,38,38,.14); }

.field-msg {
  display: none; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 600; color: var(--err);
  margin-top: 7px;
}
.field-msg.show { display: flex; }
.field-msg::before {
  content: "!"; flex: 0 0 auto;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--err); color: #fff;
  font-size: 11px; font-weight: 800; text-align: center; line-height: 15px;
}
.form-item.is-valid .field-head::after {
  content: "✓"; color: var(--ok); font-weight: 800; margin-left: auto; font-size: 14px;
}

/* ---------- Radio / checkbox ---------- */
fieldset { border: none; margin: 2px 0 0; padding: 0; }
fieldset.cols { display: flex; flex-wrap: wrap; gap: 10px; }
fieldset.cols.colnum-1 { flex-direction: column; }

fieldset .opt {
  display: inline-flex; align-items: flex-start; gap: 9px;
  padding: 9px 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color .15s, background .15s, box-shadow .15s;
  background: #fff;
  font-weight: 500;
}
fieldset .opt:hover { border-color: #b9c2cf; background: #fafbff; }
fieldset .opt input { margin-top: 2px; accent-color: var(--accent); width: 17px; height: 17px; cursor: pointer; }
fieldset .opt:has(input:checked) {
  border-color: var(--accent); background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}
fieldset.cols.colnum-1 .opt { width: 100%; }
.verify-opt { align-items: flex-start; }
.verify-opt label { font-weight: 500; color: #374151; }

/* ---------- Submit ---------- */
.actions {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding-top: 6px;
}
.btn {
  border: none; cursor: pointer;
  font-family: inherit; font-size: 15.5px; font-weight: 700;
  padding: 13px 30px; border-radius: 11px;
  transition: transform .12s, box-shadow .2s, background .2s;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #0062d1, #004ea3);
  box-shadow: 0 6px 18px rgba(0,98,209,.32);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,98,209,.42); }
.btn-primary:active { transform: translateY(0); }
.actions .hint { font-size: 12.5px; color: var(--muted); }

/* ---- ghost button + save status ---- */
.btn-ghost { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-ghost:hover { background: var(--accent-soft); transform: translateY(-1px); }
.save-status { font-size: 12.5px; font-weight: 600; color: var(--muted); flex-basis: 100%; }
.save-status.ok  { color: var(--ok); }
.save-status.err { color: var(--err); }

/* ---- character counter ---- */
.char-counter { margin-top: 6px; font-size: 12px; font-weight: 500; color: var(--muted); text-align: right; }
.char-counter.over { color: var(--err); }

/* ---- section completion chips ---- */
.section-status { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; }
.sec-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1.5px solid var(--line); border-radius: 999px;
  padding: 5px 13px 5px 6px; cursor: pointer; font-family: inherit; font-size: 12.5px;
  color: var(--muted); transition: border-color .15s, box-shadow .15s;
}
.sec-chip:hover { border-color: var(--primary-2); box-shadow: var(--shadow-sm); }
.sec-chip-num {
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; font-size: 11.5px; background: var(--accent-soft); color: var(--accent);
}
.sec-chip-label { font-weight: 600; color: var(--ink); }
.sec-chip-state { font-weight: 800; white-space: nowrap; }
.sec-chip.done .sec-chip-num  { background: var(--ok); color: #fff; }
.sec-chip.done .sec-chip-state { color: var(--ok); }
.sec-chip.todo .sec-chip-state { color: #b45309; }
.sec-chip.optional { opacity: .9; }
.sec-chip.optional .sec-chip-state { color: var(--muted); font-weight: 600; }

/* ---- restored-draft banner ---- */
.draft-banner {
  display: flex; align-items: center; gap: 10px;
  background: var(--accent-soft); border: 1px solid #bcdcf5; color: #0a4a8f;
  padding: 12px 16px; border-radius: 12px; margin-bottom: 18px;
  font-size: 13.5px; font-weight: 500;
}
.draft-banner a { color: var(--primary); font-weight: 700; cursor: pointer; text-decoration: underline; }

/* ---- "already submitted" — informational only, does NOT block submit ---- */
.submitted-notice {
  margin-top: 10px; padding: 11px 14px; border-radius: 10px;
  background: var(--accent-soft); border: 1px solid #bcdcf5; color: #0a4a8f;
  font-size: 13px; font-weight: 600; line-height: 1.5;
}

@media (max-width: 620px) {
  .sec-chip-label { display: none; }
}

/* ---------- Alerts ---------- */
.alert {
  padding: 16px 18px; border-radius: 12px; margin-bottom: 20px;
  font-weight: 500; display: flex; gap: 12px; align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.alert .ic { font-size: 20px; line-height: 1; }
.alert-success { background: var(--ok-soft); border: 1px solid #a7e0bd; color: #15803d; }
.alert-error   { background: var(--err-soft); border: 1px solid #f3b9b4; color: #b91c1c; }
.alert-error ul { margin: 6px 0 0 18px; padding: 0; font-weight: 500; }

/* ---------- Footer note ---------- */
.foot {
  text-align: center; color: var(--muted); font-size: 12px; margin-top: 24px;
}

@media (max-width: 620px) {
  .wrapper { padding: 16px 12px 60px; }
  .hero { padding: 26px 20px; }
  .hero h1 { font-size: 22px; }
  .card-head, .card-body { padding-left: 16px; padding-right: 16px; }
  fieldset.cols { flex-direction: column; }
}