/* ═══════════════════════════════════════════════════════════════
   Dry Eye Clinic Forms – Giridhar Eye Institute
   Mobile-first responsive styles
═══════════════════════════════════════════════════════════════ */

:root {
  --def-primary:      #1a6faa;
  --def-primary-dark: #145a8a;
  --def-accent:       #e8f4fd;
  --def-border:       #d0dde8;
  --def-radius:       8px;
  --def-shadow:       0 2px 16px rgba(0,0,0,.09);
  --def-text:         #2c3e50;
  --def-muted:        #6b7c93;
  --def-success:      #27ae60;
  --def-error:        #e74c3c;
  --def-warn:         #f39c12;
  --def-font:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --def-ml-font:      'Noto Sans Malayalam', 'Manjari', sans-serif;
}

/* ── Base ───────────────────────────────────────────────────────── */
.def-wrap {
  font-family: var(--def-font);
  color: var(--def-text);
  max-width: 860px;
  margin: 16px auto;
  padding: 0 12px 40px;
  box-sizing: border-box;
}

.def-lang-ml .def-qtext,
.def-lang-ml label span,
.def-lang-ml .def-field label {
  font-family: var(--def-ml-font), var(--def-font);
}

/* ── Progress bar ───────────────────────────────────────────────── */
.def-progress {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
}

.def-step-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px;
  background: #f0f4f8;
  border-radius: var(--def-radius);
}

.def-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #c4d4e0;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  transition: background .25s;
}

.def-step-label {
  font-size: 11px;
  color: var(--def-muted);
  text-align: center;
  font-weight: 500;
}

.def-step-bar.active  { background: var(--def-accent); }
.def-step-bar.active .def-step-num   { background: var(--def-primary); }
.def-step-bar.active .def-step-label { color: var(--def-primary); font-weight: 700; }
.def-step-bar.done .def-step-num     { background: var(--def-success); }
.def-step-bar.done .def-step-label   { color: var(--def-success); }

/* ── Alert banner ───────────────────────────────────────────────── */
.def-alert {
  padding: 12px 18px;
  border-radius: var(--def-radius);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
}
.def-alert-error   { background:#fdecea; color:#8b1a1a; border-left:4px solid var(--def-error); }
.def-alert-success { background:#eafaf1; color:#1a5c32; border-left:4px solid var(--def-success); }

/* ── Form card ──────────────────────────────────────────────────── */
.def-form {
  background: #fff;
  border: 1px solid var(--def-border);
  border-radius: var(--def-radius);
  padding: 24px 28px;
  box-shadow: var(--def-shadow);
}

.def-form-header {
  border-bottom: 2px solid var(--def-accent);
  margin-bottom: 20px;
  padding-bottom: 12px;
}

.def-form-header h2 { margin: 0 0 4px; font-size: 16px; color: var(--def-primary); }
.def-form-header p  { margin: 4px 0 0; color: var(--def-muted); font-size: 13px; }
.def-form-ref       { font-size: 11px; color: #aaa; letter-spacing: 1px; margin: 0 !important; }

.def-section-title {
  font-size: 15px;
  color: var(--def-primary);
  border-bottom: 2px solid var(--def-accent);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.def-subsection {
  font-size: 13px;
  font-weight: 700;
  color: var(--def-primary);
  margin: 18px 0 10px;
  padding: 6px 12px;
  background: var(--def-accent);
  border-radius: 4px;
}

/* ── Language selector ──────────────────────────────────────────── */
.def-lang-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.def-lang-opt {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--def-muted);
  padding: 6px 16px;
  border: 2px solid var(--def-border);
  border-radius: 20px;
  transition: all .2s;
}

.def-lang-opt input { margin: 0; accent-color: var(--def-primary); }
.def-lang-opt:has(input:checked) {
  border-color: var(--def-primary);
  color: var(--def-primary);
  background: var(--def-accent);
}

/* ── Required indicator ─────────────────────────────────────────── */
.def-required-note {
  font-size: 12px;
  color: var(--def-muted);
  margin-bottom: 16px;
}
.def-req { color: var(--def-error); font-weight: 700; }

/* ── Field grid ─────────────────────────────────────────────────── */
.def-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.def-field { display: flex; flex-direction: column; gap: 5px; }
.def-full-width { grid-column: 1 / -1; }

.def-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--def-text);
}

.def-field input[type="text"],
.def-field input[type="number"],
.def-field input[type="tel"],
.def-field input[type="email"],
.def-field select,
.def-field textarea {
  padding: 10px 12px;
  border: 1.5px solid var(--def-border);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  color: var(--def-text);
  background: #fcfcfc;
  transition: border-color .2s;
  width: 100%;
  box-sizing: border-box;
  -webkit-appearance: none;
}

.def-field input:focus,
.def-field select:focus { outline: none; border-color: var(--def-primary); background:#fff; }

.def-field input.def-invalid,
.def-field select.def-invalid { border-color: var(--def-error) !important; }

/* ── Inline field error ─────────────────────────────────────────── */
.def-field-error {
  font-size: 12px;
  color: var(--def-error);
  margin-top: 2px;
  display: none;
}
.def-field-error.visible { display: block; }

/* ── Radio/Checkbox groups ──────────────────────────────────────── */
.def-radio-group,
.def-checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.def-radio-opt,
.def-check-opt {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 14px;
  padding: 8px 16px;
  border: 1.5px solid var(--def-border);
  border-radius: 20px;
  background: #f8fbfe;
  transition: all .2s;
  min-height: 40px;
}

.def-radio-opt:hover, .def-check-opt:hover { border-color: var(--def-primary); }
.def-radio-opt input, .def-check-opt input { margin: 0; accent-color: var(--def-primary); flex-shrink: 0; }

.def-radio-opt:has(input:checked),
.def-check-opt:has(input:checked) {
  border-color: var(--def-primary);
  background: var(--def-accent);
  color: var(--def-primary);
  font-weight: 600;
}

.def-group-invalid .def-radio-opt,
.def-group-invalid .def-check-opt { border-color: var(--def-error); }


/* ═══════════════════════════════════════════════════════════════
   OSDI QUESTION TABLE — Desktop layout (≥640px)
   Grid: [num] [question] [right eye] [left eye]
═══════════════════════════════════════════════════════════════ */
.def-q-table { width: 100%; margin-top: 12px; }

/* Desktop header */
.def-q-thead {
  display: grid;
  grid-template-columns: 36px 1fr 150px 150px;
  background: var(--def-accent);
  border-radius: 6px 6px 0 0;
  font-weight: 700;
  font-size: 13px;
}
.def-q-thead .def-q-cell { padding: 10px 8px; color: var(--def-primary); }

/* Desktop question row — per-eye */
.def-q-row {
  display: grid;
  grid-template-columns: 36px 1fr 150px 150px;
  align-items: start;
  border-bottom: 1px solid #eef2f5;
  transition: background .15s;
}
.def-q-row:nth-child(even) { background: #fafcfe; }
.def-q-row:hover           { background: #f0f6fc; }
.def-q-row.def-followup    { background: #fffbf0; }

/* Desktop question row — general (spans right+left) */
.def-q-row.def-q-general {
  grid-template-columns: 36px 1fr 300px;
}
.def-q-general-ans { /* spans right+left on desktop */ }

.def-q-cell { padding: 10px 8px; font-size: 13px; }
.def-q-num  { color: var(--def-muted); font-size: 12px; text-align: center; padding-top: 12px; }
.def-q-question .def-qtext { line-height: 1.6; }

/* Yes/No pill buttons */
.def-yn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  font-size: 13px;
  padding: 5px 10px;
  border: 1.5px solid var(--def-border);
  border-radius: 12px;
  transition: all .15s;
  white-space: nowrap;
  margin: 2px 4px 2px 0;
  min-height: 34px;
}
.def-yn input { margin: 0; accent-color: var(--def-primary); flex-shrink: 0; }
.def-yn:has(input:checked) {
  border-color: var(--def-primary);
  background: var(--def-accent);
  color: var(--def-primary);
  font-weight: 700;
}

/* Red border on unanswered eye groups */
.def-eye-invalid .def-yn { border-color: var(--def-error); }


/* ═══════════════════════════════════════════════════════════════
   OSDI SCORING SCALE
═══════════════════════════════════════════════════════════════ */
.def-osdi-section { margin-bottom: 24px; }

.def-osdi-score-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid #eef2f5;
  flex-wrap: wrap;
}

.def-osdi-qlabel {
  flex: 0 0 200px;
  font-size: 13px;
  line-height: 1.5;
  padding-top: 6px;
}

.def-osdi-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex: 1;
}

.def-score-opt {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  width: 62px;
  padding: 7px 4px;
  border: 1.5px solid var(--def-border);
  border-radius: 6px;
  text-align: center;
  background: #f8fbfe;
  transition: all .2s;
  flex-shrink: 0;
}

.def-score-val { font-size: 18px; font-weight: 700; color: var(--def-primary); }
.def-score-lbl { font-size: 9px; color: var(--def-muted); margin-top: 2px; line-height: 1.3; }
.def-score-opt input { display: none; }

.def-score-opt:has(input:checked) { border-color: var(--def-primary); background: var(--def-primary); }
.def-score-opt:has(input:checked) .def-score-val,
.def-score-opt:has(input:checked) .def-score-lbl { color: #fff; }

.def-score-na { border-style: dashed; }
.def-score-na:has(input:checked) { border-color: #999; background: #999; }

.def-score-row-invalid .def-score-opt { border-color: var(--def-error); }

.def-osdi-subscale-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 5px 4px 8px;
  font-size: 12px;
  font-style: italic;
  color: #1a5276;
  font-weight: 600;
  border-bottom: 2px solid #d6eaf8;
  margin-bottom: 4px;
}
.def-subscale-score {
  display: inline-block;
  min-width: 28px;
  text-align: center;
  background: #1a5276;
  color: #fff;
  border-radius: 12px;
  padding: 1px 8px;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.def-osdi-total-box {
  background: var(--def-accent);
  border: 1.5px solid var(--def-primary);
  border-radius: var(--def-radius);
  padding: 16px 20px;
  margin: 20px 0;
}

.def-total-row { font-size: 14px; margin: 6px 0; }
.def-osdi-formula { font-size: 16px; font-weight: 700; color: var(--def-primary); margin-top: 10px; }

.def-severity-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  margin-left: 10px;
  vertical-align: middle;
}


/* ═══════════════════════════════════════════════════════════════
   DEQ-5
═══════════════════════════════════════════════════════════════ */
.def-deq-opts {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.def-deq-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  padding: 5px 8px;
  border-radius: 4px;
  min-height: 36px;
  transition: background .15s;
}
.def-deq-opt:hover { background: var(--def-accent); }
.def-deq-opt input { accent-color: var(--def-primary); margin: 0; flex-shrink: 0; }
.def-deq-opt:has(input:checked) {
  background: var(--def-accent);
  color: var(--def-primary);
  font-weight: 600;
}

.def-deq-score-row {
  font-size: 15px;
  font-weight: 600;
  padding: 14px;
  background: var(--def-accent);
  border-radius: var(--def-radius);
  margin: 20px 0;
  border: 1px solid var(--def-border);
}

.def-deq-invalid .def-deq-opt { background: #fdecea; }


/* ── Misc section block ─────────────────────────────────────────── */
.def-section-block {
  background: #fafcfe;
  border: 1px solid var(--def-border);
  border-radius: var(--def-radius);
  padding: 20px;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}


/* ── Buttons ────────────────────────────────────────────────────── */
.def-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--def-border);
  flex-wrap: wrap;
}

.def-btn {
  padding: 13px 28px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
  min-height: 48px;
  touch-action: manipulation;
}

.def-btn-primary {
  background: var(--def-primary);
  color: #fff;
}
.def-btn-primary:hover   { background: var(--def-primary-dark); }
.def-btn-primary:disabled { background: #93b8d5; cursor: not-allowed; }

.def-btn-secondary {
  background: #f0f4f8;
  color: var(--def-text);
  border: 1.5px solid var(--def-border);
}
.def-btn-secondary:hover { background: #e4eaf0; }


/* ── Success screen ─────────────────────────────────────────────── */
.def-success-box {
  text-align: center;
  padding: 48px 24px;
  background: #fff;
  border: 1px solid var(--def-border);
  border-radius: var(--def-radius);
  box-shadow: var(--def-shadow);
}

.def-success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--def-success);
  color: #fff;
  font-size: 38px;
  line-height: 72px;
  margin: 0 auto 20px;
}

.def-success-box h2 { color: var(--def-success); font-size: 22px; margin-bottom: 12px; }
.def-success-box p  { color: var(--def-muted); font-size: 15px; max-width: 480px; margin: 0 auto; }


/* ═══════════════════════════════════════════════════════════════
   MOBILE — ≤ 639px
   Per-eye questions reflow to stacked card layout:

   ┌─────────────────────────────────┐
   │ 1. Question text                │
   │                                 │
   │ 👁 Right Eye                    │
   │  ○ Yes  ○ No                    │
   │                                 │
   │ 👁 Left Eye                     │
   │  ○ Yes  ○ No                    │
   └─────────────────────────────────┘
═══════════════════════════════════════════════════════════════ */
@media (max-width: 639px) {

  .def-wrap      { padding: 0 8px 32px; }
  .def-form      { padding: 16px 14px; }
  .def-step-label { font-size: 10px; }

  /* ── Patient Details – stack to single column ── */
  .def-grid-2 { grid-template-columns: 1fr; }

  /* ── Table header on mobile: hide Right Eye & Left Eye columns, keep Question ── */
  .def-q-thead {
    grid-template-columns: 1fr;
  }
  .def-q-thead .def-q-num,
  .def-q-thead .def-q-cell:nth-child(3),
  .def-q-thead .def-q-cell:nth-child(4) { display: none; }

  /* Stretch the Question header across full width */
  .def-q-thead .def-q-question { grid-column: 1 / -1; }

  /* ── Each question row becomes a vertical card ── */
  .def-q-row,
  .def-q-row.def-q-general {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    border-bottom: 2px solid #e8f0f8;
    margin-bottom: 4px;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,.05);
  }

  /* Question number + text row */
  .def-q-cell.def-q-num {
    display: none; /* number hidden; show inline in question text instead */
  }

  .def-q-cell.def-q-question {
    padding: 12px 14px 8px;
    font-weight: 600;
    font-size: 14px;
    background: var(--def-accent);
    color: var(--def-primary);
    border-bottom: 1px solid var(--def-border);
  }

  /* Per-eye cells become their own labelled blocks */
  .def-q-cell.def-q-right,
  .def-q-cell.def-q-left,
  .def-q-cell.def-q-general-ans {
    padding: 10px 14px;
    border-bottom: 1px solid #f0f4f8;
  }

  /* Add eye label via ::before on the cell */
  .def-q-cell.def-q-right::before {
    content: '👁 Right Eye';
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--def-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 6px;
  }

  .def-q-cell.def-q-left::before {
    content: '👁 Left Eye';
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--def-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 6px;
  }

  /* Yes/No buttons — larger touch targets */
  .def-yn {
    padding: 9px 18px;
    font-size: 14px;
    min-height: 42px;
    border-radius: 8px;
  }

  /* Follow-up rows */
  .def-q-row.def-followup {
    background: #fffbf0;
    border-left: 3px solid var(--def-warn);
  }

  /* ── OSDI Scoring scale ── */
  .def-osdi-score-row {
    flex-direction: column;
    gap: 8px;
  }

  .def-osdi-qlabel {
    flex: unset;
    width: 100%;
    font-weight: 600;
    font-size: 14px;
    color: var(--def-primary);
    background: var(--def-accent);
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 4px;
  }

  .def-osdi-opts {
    gap: 4px;
    justify-content: flex-start;
  }

  .def-score-opt {
    width: 56px;
    padding: 6px 2px;
  }
  .def-score-val { font-size: 16px; }
  .def-score-lbl { font-size: 8px; }

  /* ── DEQ-5 table on mobile — reflow to stacked card per question ── */

  /* Hide the DEQ-5 4-col thead on mobile */
  #def-step-4 .def-q-thead { display: none; }

  /* Each DEQ row becomes a vertical card */
  #def-step-4 .def-q-row {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    border-bottom: 2px solid #e8f0f8;
    margin-bottom: 8px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,.05);
  }

  /* Question text block */
  #def-step-4 .def-q-cell.def-q-question {
    padding: 12px 14px 8px;
    font-weight: 600;
    font-size: 14px;
    background: var(--def-accent);
    color: var(--def-primary);
    border-bottom: 1px solid var(--def-border);
  }

  /* Each eye becomes its own labelled section */
  #def-step-4 .def-q-cell:not(.def-q-question):not(.def-q-num) {
    padding: 10px 14px;
    border-bottom: 1px solid #f0f4f8;
  }

  /* Eye labels via CSS counter — Right Eye first, Left Eye second */
  #def-step-4 .def-q-row { counter-reset: eye-counter; }

  #def-step-4 .def-q-cell:not(.def-q-question):not(.def-q-num)::before {
    counter-increment: eye-counter;
    content: '👁 Right Eye';
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--def-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 6px;
  }

  /* Override second eye cell label */
  #def-step-4 .def-q-cell:not(.def-q-question):not(.def-q-num) + .def-q-cell:not(.def-q-question):not(.def-q-num)::before {
    content: '👁 Left Eye';
  }

  /* DEQ option list — larger touch targets */
  .def-deq-opt {
    font-size: 14px;
    min-height: 42px;
    padding: 8px 12px;
    border: 1px solid var(--def-border);
    border-radius: 6px;
    background: #f8fbfe;
  }

  .def-deq-opt:has(input:checked) {
    background: var(--def-accent);
    border-color: var(--def-primary);
    font-weight: 600;
    color: var(--def-primary);
  }

  /* DEQ validation highlight on mobile */
  #def-step-4 .def-q-cell.def-eye-invalid { background: #fff5f5; }
  #def-step-4 .def-q-cell.def-eye-invalid::before { color: var(--def-error); }

  /* ── Actions ── */
  .def-actions {
    flex-direction: column-reverse;
    gap: 10px;
  }

  .def-btn {
    width: 100%;
    text-align: center;
    padding: 15px;
    font-size: 16px;
  }

  /* ── Section block ── */
  .def-section-block { padding: 14px; gap: 14px; }

  /* ── Radio groups wrap nicely ── */
  .def-radio-group  { gap: 8px; }
  .def-radio-opt    { padding: 9px 14px; min-height: 42px; }
}


/* ── Tablet tweaks 640–860px ────────────────────────────────────── */
@media (min-width: 640px) and (max-width: 860px) {
  .def-q-row         { grid-template-columns: 36px 1fr 120px 120px; }
  .def-q-row.def-q-general { grid-template-columns: 36px 1fr 240px; }
  .def-osdi-qlabel   { flex: 0 0 160px; }
  .def-score-opt     { width: 56px; }
}