/* ============================================================
   Idiomasofía® — English Test · Business English
   styles.css · Brand: Sky Blue + Orange · Fredoka One + Nunito
   ============================================================ */

:root {
  --blue:         #1AACCF;
  --blue-dark:    #0E8CAD;
  --blue-light:   #E6F7FB;
  --blue-mid:     #B3E8F5;
  --orange:       #FF7A2F;
  --orange-light: #FFF0E8;
  --white:        #FFFFFF;
  --gray-100:     #F4F6F8;
  --gray-300:     #D1D9E0;
  --gray-500:     #8A97A4;
  --gray-700:     #3D4F5C;
  --dark:         #1C2B35;
  --green:        #4CAF50;
  --green-light:  #E8F8EE;
  --red:          #EF5350;
  --red-light:    #FFF0F0;
  --whatsapp:     #25D366;
  --business:     #2C3E50;   /* accent for business theme */

  --font-display: 'Fredoka One', cursive;
  --font-body:    'Nunito', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card:   0 16px 48px rgba(26,172,207,.14), 0 2px 12px rgba(0,0,0,.05);
  --shadow-btn:    0 8px 24px rgba(26,172,207,.40);
  --shadow-orange: 0 8px 24px rgba(255,122,47,.38);
  --transition:    all .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: linear-gradient(145deg, var(--blue-light) 0%, #fff 50%, var(--orange-light) 100%);
  min-height: 100vh;
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  position: relative;
  overflow: hidden;
}
#app::before {
  content: '';
  position: fixed; top: -80px; right: -80px;
  width: 280px; height: 280px; border-radius: 50%;
  background: rgba(26,172,207,.10);
  pointer-events: none; z-index: 0;
}
#app::after {
  content: '';
  position: fixed; bottom: -60px; left: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  background: rgba(255,122,47,.08);
  pointer-events: none; z-index: 0;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 36px 32px;
  width: 100%;
  max-width: 560px;   /* slightly wider for business passages */
  position: relative;
  z-index: 1;
}
@media (max-width: 580px) {
  .card { padding: 24px 18px; border-radius: var(--radius-lg); }
}

/* ── Badge ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-light); color: var(--blue-dark);
  border-radius: 50px; padding: 5px 14px;
  font-size: 12px; font-weight: 700; letter-spacing: .03em;
  margin-bottom: 18px;
}
.badge.orange { background: var(--orange-light); color: var(--orange); }

/* ── Logo ──────────────────────────────────────────────────── */
.logo    { font-family: var(--font-display); font-size: 26px; color: var(--blue); margin-bottom: 2px; }
.logo-sm { font-family: var(--font-display); font-size: 17px; color: var(--blue); }

/* ── Typography ────────────────────────────────────────────── */
h1.display {
  font-family: var(--font-display);
  font-size: 36px; color: var(--dark); line-height: 1.15; margin-bottom: 8px;
}
h2.section-title { font-family: var(--font-display); font-size: 20px; color: var(--dark); margin-bottom: 14px; }
.subtitle  { font-size: 15px; color: var(--gray-500); line-height: 1.55; margin-bottom: 24px; }
.caption   { font-size: 12px; color: var(--gray-500); font-weight: 600; letter-spacing: .02em; }

/* ── Info Grid ─────────────────────────────────────────────── */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 28px; }
.info-item { background: var(--gray-100); border-radius: var(--radius-md); padding: 14px 10px; text-align: center; }
.info-item .icon  { font-size: 20px; margin-bottom: 4px; }
.info-item .label { font-size: 11px; color: var(--gray-500); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.info-item .value { font-size: 15px; color: var(--dark); font-weight: 800; margin-top: 2px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: var(--radius-md); padding: 14px 24px;
  font-family: var(--font-body); font-size: 15px; font-weight: 800;
  cursor: pointer; transition: var(--transition); width: 100%;
  text-decoration: none;
}
.btn:active { transform: scale(.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: var(--white); box-shadow: var(--shadow-btn);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(26,172,207,.50); }

.btn-orange {
  background: linear-gradient(135deg, var(--orange), #e56020);
  color: var(--white); box-shadow: var(--shadow-orange);
}
.btn-orange:hover { transform: translateY(-2px); }

.btn-whatsapp {
  background: var(--whatsapp); color: var(--white);
  box-shadow: 0 8px 24px rgba(37,211,102,.40); border-radius: var(--radius-md);
}
.btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-2px); }

.btn-disabled {
  background: var(--gray-300); color: var(--white);
  cursor: not-allowed; box-shadow: none;
}
.btn-disabled:hover { transform: none; }

/* ── Form ──────────────────────────────────────────────────── */
.form-group       { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 700; color: var(--gray-700); margin-bottom: 6px; }
.form-group .required { color: var(--orange); margin-left: 2px; }

.form-control {
  width: 100%; padding: 12px 14px;
  border: 2px solid var(--gray-300); border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: 14px; color: var(--dark);
  background: var(--white); transition: var(--transition); outline: none; -webkit-appearance: none;
}
.form-control:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26,172,207,.15); }
.form-control.error { border-color: var(--red); box-shadow: 0 0 0 3px rgba(239,83,80,.12); }
.form-control::placeholder { color: var(--gray-300); }

.error-msg { font-size: 12px; color: var(--red); margin-top: 4px; font-weight: 600; display: none; }
.error-msg.visible { display: block; }

/* ── Progress ──────────────────────────────────────────────── */
.progress-wrap    { margin-bottom: 18px; }
.progress-bar     { height: 6px; background: var(--gray-300); border-radius: 6px; overflow: hidden; }
.progress-fill    { height: 100%; border-radius: 6px; background: linear-gradient(90deg, var(--blue), var(--orange)); transition: width .4s ease; }
.progress-meta    { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }

.q-counter {
  font-size: 13px; font-weight: 700; color: var(--gray-500);
  background: var(--white); padding: 3px 12px; border-radius: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,.07);
}

.top-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; width: 100%; max-width: 560px; position: relative; z-index: 1;
}

/* ── Question type badge ───────────────────────────────────── */
.question-type-badge {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 30px; padding: 4px 12px;
  font-size: 12px; font-weight: 700; margin-bottom: 14px;
}
.question-type-badge.notice  { background: #FFF8E1; color: #F57F17; }
.question-type-badge.reading { background: #E8F5E9; color: #2E7D32; }
.question-type-badge.cloze   { background: var(--blue-light); color: var(--blue-dark); }

/* ── Context box (notices & reading passages) ──────────────── */
.context-box {
  background: var(--gray-100);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 14px 16px;
  margin-bottom: 18px;
}
.context-label {
  font-size: 10px; font-weight: 800;
  color: var(--blue-dark); text-transform: uppercase;
  letter-spacing: .06em; margin-bottom: 8px;
}
.context-text {
  font-size: 13px; color: var(--gray-700);
  line-height: 1.65; font-style: italic;
  white-space: pre-line;   /* respeta \n del contexto */
}

/* ── Question text ─────────────────────────────────────────── */
.q-number      { font-size: 12px; font-weight: 700; color: var(--gray-500); margin-bottom: 4px; text-transform: uppercase; letter-spacing: .04em; }
.q-prompt      { font-family: var(--font-display); font-size: 20px; color: var(--dark); line-height: 1.3; margin-bottom: 6px; }
.q-instruction { font-size: 13px; color: var(--gray-500); font-style: italic; margin-bottom: 20px; }

/* ── Options ───────────────────────────────────────────────── */
.option-btn {
  display: flex; align-items: center; gap: 12px;
  width: 100%; padding: 13px 14px;
  border: 2px solid var(--gray-300); border-radius: var(--radius-md);
  background: var(--white); color: var(--gray-700);
  font-family: var(--font-body); font-size: 14px; font-weight: 600;
  cursor: pointer; text-align: left; margin-bottom: 9px;
  transition: var(--transition); position: relative;
}
.option-btn:hover:not(.confirmed) { background: var(--blue-light); border-color: var(--blue-mid); }
.option-btn.selected  { background: var(--blue-light); border-color: var(--blue); color: var(--blue-dark); box-shadow: 0 4px 14px rgba(26,172,207,.18); }
.option-btn.correct   { background: var(--green-light); border-color: var(--green); color: #2E7D32; box-shadow: 0 4px 12px rgba(76,175,80,.20); }
.option-btn.wrong     { background: var(--red-light); border-color: var(--red); color: #C62828; }
.option-btn.confirmed { cursor: default; }

.letter-badge {
  min-width: 28px; height: 28px; border-radius: 8px;
  background: var(--gray-300); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; flex-shrink: 0; transition: background .2s;
}
.option-btn.selected .letter-badge { background: var(--blue); }
.option-btn.correct  .letter-badge { background: var(--green); }
.option-btn.wrong    .letter-badge { background: var(--red); }

.option-text { flex: 1; line-height: 1.35; }
.check-icon  { font-size: 15px; margin-left: auto; }

.action-row  { margin-top: 10px; }

/* ── Results ───────────────────────────────────────────────── */
.score-circle {
  width: 120px; height: 120px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.score-num  { font-family: var(--font-display); font-size: 44px; color: var(--white); line-height: 1; }
.score-of   { font-size: 13px; color: rgba(255,255,255,.8); font-weight: 700; }

.level-badge { display: inline-block; color: var(--white); border-radius: 50px; padding: 8px 26px; font-family: var(--font-display); font-size: 20px; margin-bottom: 6px; }
.level-name  { font-size: 15px; color: var(--gray-500); font-weight: 700; margin-bottom: 10px; }
.level-desc  { font-size: 15px; color: var(--gray-700); line-height: 1.6; margin-bottom: 26px; text-align: center; }

.stats-grid  { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-bottom: 24px; }
.stat-item   { background: var(--gray-100); border-radius: var(--radius-md); padding: 12px 8px; text-align: center; }
.stat-val    { font-family: var(--font-display); font-size: 24px; color: var(--dark); }
.stat-label  { font-size: 11px; color: var(--gray-500); font-weight: 700; margin-top: 2px; }

.recommendations-box { background: var(--gray-100); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 14px; text-align: left; }
.recommendations-box h3 { font-size: 14px; font-weight: 800; color: var(--dark); margin-bottom: 10px; }

.rec-list    { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.rec-list li { font-size: 13px; color: var(--gray-700); display: flex; align-items: flex-start; gap: 7px; line-height: 1.45; }
.rec-list li::before { content: '→'; color: var(--blue); font-weight: 800; flex-shrink: 0; margin-top: 1px; }

.cambridge-box { background: var(--blue-light); border-radius: var(--radius-md); padding: 14px 18px; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.cambridge-box .icon { font-size: 22px; flex-shrink: 0; }
.cambridge-box .text { font-size: 13px; color: var(--blue-dark); font-weight: 700; line-height: 1.4; }
.cambridge-box .text span { display: block; font-weight: 400; color: var(--gray-700); font-size: 12px; margin-top: 2px; }

.cta-box { background: var(--blue-light); border-radius: var(--radius-lg); padding: 22px 20px; text-align: center; margin-bottom: 16px; }
.cta-box p { font-size: 14px; color: var(--gray-700); margin-bottom: 14px; line-height: 1.5; }
.cta-box strong { color: var(--dark); }

/* ── Sending state ─────────────────────────────────────────── */
.sending-overlay { text-align: center; padding: 20px 0; }
.spinner { width: 40px; height: 40px; border: 4px solid var(--blue-light); border-top-color: var(--blue); border-radius: 50%; animation: spin .7s linear infinite; margin: 0 auto 14px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeSlideUp { from { opacity:0; transform:translateY(16px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeOut     { from { opacity:1; transform:translateY(0); } to { opacity:0; transform:translateY(-10px); } }
.animate-in  { animation: fadeSlideUp .30s ease both; }
.animate-out { animation: fadeOut .25s ease both; }

.divider     { height: 1px; background: var(--gray-300); margin: 20px 0; }
.footer-note { font-size: 11px; color: var(--gray-500); text-align: center; margin-top: 20px; position: relative; z-index: 1; }

::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--blue-mid); border-radius: 3px; }