/* ═══════════════════════════════════════════════════════════════════
   CALCULADORA DE NOTAS ESCOLARES — COLEGIOS DEL PERÚ
   Modern, premium UI with animations and responsive design
   ═══════════════════════════════════════════════════════════════════ */

/* ─── VARIABLES ──────────────────────────────────────────────────── */
:root {
  --cn-primary:   #6366f1;
  --cn-primary-d: #4f46e5;
  --cn-secondary: #8b5cf6;
  --cn-accent:    #f59e0b;
  --cn-success:   #10b981;
  --cn-warning:   #f59e0b;
  --cn-danger:    #ef4444;
  --cn-risk:      #f97316;
  --cn-bg:        #f8fafc;
  --cn-card:      #ffffff;
  --cn-border:    #e2e8f0;
  --cn-text:      #1e293b;
  --cn-muted:     #64748b;
  --cn-shadow:    0 4px 24px rgba(99,102,241,.10);
  --cn-radius:    18px;
  --cn-radius-sm: 10px;
}

/* ─── BODY OVERRIDE ──────────────────────────────────────────────── */
body.page-calculadora {
  background: var(--cn-bg);
}

/* ─── HERO SECTION ───────────────────────────────────────────────── */
.cn-hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4c1d95 100%);
  padding: 100px 1rem 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cn-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cn-hero-particles {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.cn-hero-particles span {
  position: absolute;
  border-radius: 50%;
  animation: cn-float 6s ease-in-out infinite;
  opacity: .25;
}
.cn-hero-particles span:nth-child(1) { width: 60px; height: 60px; background: #a78bfa; top: 15%; left: 8%;  animation-delay: 0s; }
.cn-hero-particles span:nth-child(2) { width: 30px; height: 30px; background: #67e8f9; top: 60%; left: 5%;  animation-delay: 1s; }
.cn-hero-particles span:nth-child(3) { width: 45px; height: 45px; background: #fbbf24; top: 20%; right: 10%; animation-delay: 2s; }
.cn-hero-particles span:nth-child(4) { width: 20px; height: 20px; background: #34d399; top: 70%; right: 8%;  animation-delay: 0.5s; }
.cn-hero-particles span:nth-child(5) { width: 55px; height: 55px; background: #f472b6; top: 40%; left: 50%;  animation-delay: 1.5s; }
@keyframes cn-float {
  0%,100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-20px) scale(1.08); }
}
.cn-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.12); color: #c4b5fd;
  border: 1px solid rgba(196,181,253,.25); backdrop-filter: blur(8px);
  padding: 6px 18px; border-radius: 999px; font-size: 13px; font-weight: 600;
  margin-bottom: 20px; letter-spacing: .5px;
}
.cn-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; color: #fff;
  line-height: 1.15; margin: 0 auto 14px; max-width: 800px;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.cn-hero h1 span { color: #a78bfa; }
.cn-hero p {
  color: rgba(255,255,255,.75); font-size: 1.1rem; max-width: 540px; margin: 0 auto 32px;
}
.cn-hero-stats {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 8px;
}
.cn-hero-stat {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  border-radius: 14px; padding: 14px 22px; text-align: center; backdrop-filter: blur(6px);
  min-width: 90px;
}
.cn-hero-stat .num { display: block; font-size: 1.6rem; font-weight: 900; color: #fff; line-height: 1; }
.cn-hero-stat .lbl { display: block; font-size: .7rem; color: rgba(255,255,255,.65); text-transform: uppercase; letter-spacing: .8px; margin-top: 4px; }

/* ─── MAIN LAYOUT ────────────────────────────────────────────────── */
.cn-main {
  max-width: 1200px; margin: -30px auto 60px; padding: 0 1rem;
  position: relative; z-index: 2;
  /* Fix mobile overflow */
  box-sizing: border-box;
}
.cn-layout {
  display: grid; grid-template-columns: 1fr 360px; gap: 24px; align-items: start;
}
@media (max-width: 900px) {
  .cn-layout { display: block; }
  .cn-layout > * + * { margin-top: 24px; }
}
/* Global overflow guard */
.cn-card, .cn-necesito-card, .cn-explore-section, .cn-seo-section {
  min-width: 0;
  box-sizing: border-box;
}

/* ─── CARDS ──────────────────────────────────────────────────────── */
.cn-card {
  background: var(--cn-card); border-radius: var(--cn-radius);
  box-shadow: var(--cn-shadow); border: 1px solid var(--cn-border);
  overflow: hidden;
}
.cn-card-header {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--cn-border);
  display: flex; align-items: center; gap: 12px;
}
.cn-card-header-icon {
  width: 42px; height: 42px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff;
  flex-shrink: 0;
}
.cn-card-header h2 {
  font-size: 1.05rem; font-weight: 700; color: var(--cn-text); margin: 0;
}
.cn-card-header p {
  font-size: .8rem; color: var(--cn-muted); margin: 2px 0 0;
}
.cn-card-body { padding: 24px; }

/* ─── GRADE INPUT SECTION ────────────────────────────────────────── */
.cn-evaluaciones-list {
  display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px;
}
.cn-eval-row {
  display: grid; grid-template-columns: 1fr auto auto auto;
  gap: 10px; align-items: center;
  animation: cn-slide-in .3s ease;
}
@keyframes cn-slide-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.cn-eval-name {
  border: 2px solid var(--cn-border); border-radius: var(--cn-radius-sm);
  padding: 10px 14px; font-size: .9rem; font-family: inherit;
  color: var(--cn-text); background: #fff; transition: border-color .2s;
  width: 100%;
}
.cn-eval-name:focus { outline: none; border-color: var(--cn-primary); }
.cn-eval-nota {
  border: 2px solid var(--cn-border); border-radius: var(--cn-radius-sm);
  padding: 10px 10px; font-size: 1rem; font-weight: 700;
  color: var(--cn-text); background: #fff; transition: border-color .2s;
  width: 68px; text-align: center;
}
.cn-eval-nota:focus { outline: none; border-color: var(--cn-primary); }
.cn-eval-peso {
  border: 2px solid var(--cn-border); border-radius: var(--cn-radius-sm);
  padding: 10px 8px; font-size: .85rem; font-weight: 600;
  color: var(--cn-muted); background: #f8fafc; transition: border-color .2s;
  width: 68px; text-align: center;
}
.cn-eval-peso:focus { outline: none; border-color: var(--cn-secondary); }
.cn-eval-peso:disabled { opacity: .5; cursor: not-allowed; }
.cn-eval-del {
  background: none; border: 2px solid #fee2e2; border-radius: var(--cn-radius-sm);
  color: var(--cn-danger); cursor: pointer; padding: 8px 10px;
  font-size: 14px; transition: all .2s; line-height: 1;
}
.cn-eval-del:hover { background: #fef2f2; border-color: var(--cn-danger); }
.cn-eval-nota.nota-aprobado { border-color: var(--cn-success); color: var(--cn-success); }
.cn-eval-nota.nota-riesgo   { border-color: var(--cn-risk);    color: var(--cn-risk); }
.cn-eval-nota.nota-jalado   { border-color: var(--cn-danger);  color: var(--cn-danger); }

/* ─── CONTROLS ───────────────────────────────────────────────────── */
.cn-controls {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px;
}
.cn-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 18px; border-radius: 10px; font-size: .875rem; font-weight: 600;
  cursor: pointer; border: none; transition: all .2s; font-family: inherit;
  text-decoration: none;
}
.cn-btn-primary {
  background: linear-gradient(135deg, var(--cn-primary), var(--cn-secondary));
  color: #fff; box-shadow: 0 2px 12px rgba(99,102,241,.3);
}
.cn-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(99,102,241,.4); }
.cn-btn-ghost {
  background: #f1f5f9; color: var(--cn-text); border: 2px solid var(--cn-border);
}
.cn-btn-ghost:hover { background: #e2e8f0; }
.cn-btn-danger { background: #fef2f2; color: var(--cn-danger); border: 2px solid #fee2e2; }
.cn-btn-danger:hover { background: #fee2e2; }
.cn-btn-success { background: linear-gradient(135deg, var(--cn-success), #059669); color: #fff; }
.cn-btn-success:hover { transform: translateY(-1px); }

/* ─── TIPO CALCULO ───────────────────────────────────────────────── */
.cn-tipo-selector {
  display: flex; gap: 8px; margin-bottom: 18px;
}
.cn-tipo-btn {
  flex: 1; padding: 12px; border: 1px solid var(--cn-border); background: #fff;
  border-radius: var(--cn-radius-sm); font-size: .85rem; font-weight: 600; color: var(--cn-text);
  cursor: pointer; transition: all .25s ease; position: relative;
  text-align: center; font-family: inherit;
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.cn-tipo-btn.active {
  background: linear-gradient(135deg, var(--cn-primary), var(--cn-secondary));
  color: #fff; border-color: transparent; box-shadow: 0 2px 12px rgba(99,102,241,.3);
}

/* ─── RESULT PANEL ───────────────────────────────────────────────── */
.cn-result-panel {
  position: sticky; top: 80px;
}
.cn-result-circle-wrap {
  display: flex; justify-content: center; padding: 28px 0 20px;
}
.cn-result-circle {
  position: relative; width: 160px; height: 160px;
}
.cn-circle-svg { transform: rotate(-90deg); }
.cn-circle-bg  { fill: none; stroke: #f1f5f9; stroke-width: 10; }
.cn-circle-val { fill: none; stroke-width: 10; stroke-linecap: round;
  transition: stroke-dashoffset 1s cubic-bezier(.4,0,.2,1), stroke .5s; }
.cn-circle-inner {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center;
}
.cn-circle-nota {
  font-size: 2.6rem; font-weight: 900; line-height: 1;
  transition: color .5s;
}
.cn-circle-label {
  font-size: .7rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .8px; color: var(--cn-muted); margin-top: 10px;
}

/* ─── STATUS BADGE ───────────────────────────────────────────────── */
.cn-status-badge {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  margin: 0 auto 16px; max-width: 220px; text-align: center;
  transition: all .5s;
}
.cn-status-aprobado { background: linear-gradient(135deg,#d1fae5,#a7f3d0); color: #065f46; }
.cn-status-riesgo   { background: linear-gradient(135deg,#ffedd5,#fed7aa); color: #9a3412; }
.cn-status-jalado   { background: linear-gradient(135deg,#fee2e2,#fecaca); color: #991b1b; }
.cn-status-vacio    { background: #f1f5f9; color: var(--cn-muted); }

/* ─── STATS ROW ──────────────────────────────────────────────────── */
.cn-stats-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px; margin: 0 16px 16px;
}
.cn-stat-box {
  background: #f8fafc; border-radius: var(--cn-radius-sm);
  border: 1px solid var(--cn-border); padding: 12px; text-align: center;
}
.cn-stat-box .val { font-size: 1.25rem; font-weight: 800; color: var(--cn-text); transition: all .3s ease; }

.cn-stat-box .lbl { font-size: .7rem; color: var(--cn-muted); margin-top: 2px; text-transform: uppercase; letter-spacing: .5px; }

/* ─── MENTOR BUBBLE ──────────────────────────────────────────────── */
.cn-mentor-section {
  padding: 0 16px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.cn-mentor-img-wrap {
  width: 90px; height: 90px; border-radius: 50%;
  overflow: hidden; border: 3px solid var(--cn-primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,.15), 0 4px 16px rgba(0,0,0,.12);
  flex-shrink: 0;
}
.cn-mentor-img {
  width: 100%; height: 100%; object-fit: cover; transition: opacity .4s;
}
.cn-mentor-bubble {
  background: linear-gradient(135deg,#ede9fe,#f5f3ff);
  border: 1px solid #c4b5fd; border-radius: 14px;
  padding: 12px 16px; font-size: .85rem; color: #4c1d95;
  font-weight: 600; text-align: center; line-height: 1.5;
  position: relative; width: 100%;
  animation: cn-bubble-in .4s ease;
  display: flex; align-items: center; justify-content: center; min-height: 54px;
}
.cn-mentor-bubble::before {
  content: ''; position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  border: 5px solid transparent; border-bottom-color: #c4b5fd;
}
@keyframes cn-bubble-in {
  from { opacity: 0; transform: scale(.95) translateY(5px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ─── CUÁNTO NECESITO SECTION ────────────────────────────────────── */
.cn-necesito-card {
  background: linear-gradient(135deg,#1e1b4b,#312e81);
  border-radius: var(--cn-radius); padding: 24px;
  color: #fff; margin-bottom: 24px;
  box-shadow: 0 8px 32px rgba(99,102,241,.25);
}
.cn-necesito-card h3 {
  font-size: 1rem; font-weight: 800; color: #a78bfa; margin: 0 0 6px;
  display: flex; align-items: center; gap: 8px;
}
.cn-necesito-card p { font-size: .82rem; color: rgba(255,255,255,.65); margin: 0 0 16px; }
.cn-necesito-inputs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px;
}
.cn-nec-group label {
  display: block; font-size: .85rem; font-weight: 600; color: #c4b5fd;
  margin-bottom: 5px; text-transform: uppercase; letter-spacing: .5px;
}
.cn-nec-input {
  width: 100%; padding: 10px 12px; border-radius: var(--cn-radius-sm);
  border: 2px solid rgba(255,255,255,.15); background: rgba(255,255,255,.08);
  color: #fff; font-size: 1rem; font-weight: 700; text-align: center;
  font-family: inherit; transition: border-color .2s; box-sizing: border-box;
}
.cn-nec-input:focus { outline: none; border-color: #a78bfa; background: rgba(255,255,255,.12); }
.cn-nec-input::placeholder { color: rgba(255,255,255,.35); font-weight: 400; }
.cn-nec-result {
  background: rgba(255,255,255,.1); border-radius: var(--cn-radius-sm);
  padding: 14px; text-align: center; min-height: 54px;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid rgba(255,255,255,.1); transition: all .4s;
}
.cn-nec-result .nec-val {
  font-size: 1.4rem; font-weight: 900; color: #fbbf24; line-height: 1;
}
.cn-nec-result .nec-txt {
  font-size: .8rem; color: rgba(255,255,255,.65); margin-top: 3px;
}
.cn-nec-result .nec-info {
  font-size: .85rem; color: rgba(255,255,255,.65); text-align: center;
}

/* ─── CHART SECTION ──────────────────────────────────────────────── */
.cn-chart-wrap {
  position: relative; height: 220px; padding: 0 4px;
}

/* ─── EXPLORE CTA ────────────────────────────────────────────────── */
.cn-explore-section {
  background: linear-gradient(135deg,#0f172a,#1e1b4b);
  border-radius: var(--cn-radius); padding: 28px 24px; margin-bottom: 24px;
  box-sizing: border-box;
}
.cn-explore-section h3 {
  color: #fff; font-size: 1.05rem; font-weight: 800; margin: 0 0 6px;
  display: flex; align-items: center; gap: 8px;
}
.cn-explore-section p { color: rgba(255,255,255,.6); font-size: .82rem; margin: 0 0 18px; }
/* Student tools first row */
.cn-explore-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cn-explore-divider {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 10px;
  font-size: .68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .8px; color: rgba(255,255,255,.35); margin: 4px 0;
}
.cn-explore-divider::before, .cn-explore-divider::after { content:''; flex:1; height:1px; background:rgba(255,255,255,.1); }
.cn-explore-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 10px; border-radius: 12px; text-decoration: none;
  font-size: .78rem; font-weight: 700; text-align: center;
  transition: all .2s; border: 1px solid transparent;
  box-sizing: border-box;
}
.cn-explore-btn i { font-size: 1.2rem; }
.cn-explore-btn:hover { transform: translateY(-2px); filter: brightness(1.1); }
.cn-explore-btn.btn-calculadora { background: linear-gradient(135deg,#312e81,#4338ca); color: #a5b4fc; border-color: rgba(165,180,252,.2); }
.cn-explore-btn.btn-horario     { background: linear-gradient(135deg,#78350f,#92400e); color: #fde68a; border-color: rgba(253,230,138,.2); }
.cn-explore-btn.btn-tipo        { background: linear-gradient(135deg,#4c1d95,#6d28d9); color: #ddd6fe; border-color: rgba(221,214,254,.2); }
.cn-explore-btn.btn-ranking     { background: linear-gradient(135deg,#78350f,#92400e); color: #fbbf24; border-color: rgba(251,191,36,.2); }
.cn-explore-btn.btn-buscar      { background: linear-gradient(135deg,#1e40af,#1d4ed8); color: #93c5fd; border-color: rgba(147,197,253,.2); }
.cn-explore-btn.btn-cerca       { background: linear-gradient(135deg,#064e3b,#065f46); color: #6ee7b7; border-color: rgba(110,231,183,.2); }
.cn-explore-btn.btn-comparar    { background: linear-gradient(135deg,#581c87,#6d28d9); color: #c4b5fd; border-color: rgba(196,181,253,.2); }

/* ─── TIPS SECTION ───────────────────────────────────────────────── */
.cn-tips-section { padding: 0 24px 24px; }
.cn-tips-title { font-size: .8rem; font-weight: 700; color: var(--cn-muted); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .6px; }
.cn-tip {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 8px 0; border-bottom: 1px solid #f1f5f9;
  font-size: .82rem; color: var(--cn-muted);
}
.cn-tip:last-child { border-bottom: none; }
.cn-tip i { color: var(--cn-primary); margin-top: 2px; flex-shrink: 0; }

/* ─── SCALE INFO ─────────────────────────────────────────────────── */
.cn-scale-info {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px;
}
.cn-scale-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px; font-size: .75rem; font-weight: 700;
}
.cn-scale-pill.aprobado { background: #d1fae5; color: #065f46; }
.cn-scale-pill.riesgo   { background: #ffedd5; color: #9a3412; }
.cn-scale-pill.jalado   { background: #fee2e2; color: #991b1b; }

/* ─── SEO CONTENT AREA ───────────────────────────────────────────── */
.cn-seo-section {
  max-width: 900px; margin: 0 auto 60px; padding: 0 1rem;
}
.cn-seo-section h2 {
  font-size: 1.4rem; font-weight: 800; color: var(--cn-text); margin-bottom: 12px;
}
.cn-seo-section p { color: var(--cn-muted); line-height: 1.7; margin-bottom: 16px; }
.cn-faq-item {
  background: #fff; border-radius: var(--cn-radius-sm);
  border: 1px solid var(--cn-border); margin-bottom: 10px; overflow: hidden;
}
.cn-faq-q {
  padding: 14px 18px; font-weight: 700; color: var(--cn-text); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .9rem; transition: background .2s;
}
.cn-faq-q:hover { background: #f8fafc; }
.cn-faq-a {
  padding: 0 18px 14px; font-size: .87rem; color: var(--cn-muted); line-height: 1.6;
  display: none;
}
.cn-faq-item.open .cn-faq-a { display: block; }
.cn-faq-item.open .cn-faq-q i { transform: rotate(180deg); }
.cn-faq-q i { transition: transform .25s; }

/* ─── RESET BUTTON ───────────────────────────────────────────────── */
.cn-reset-row {
  display: flex; justify-content: center; margin-top: 8px;
}

/* ─── ANIMATIONS ─────────────────────────────────────────────────── */
.cn-fade-in { animation: cn-fade-in .5s ease; }
@keyframes cn-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.cn-mentor-img.fading { opacity: 0 !important; }

/* Mentor bounce when a note is registered */
@keyframes cn-mentor-bounce {
  0%   { transform: scale(1); }
  25%  { transform: scale(1.18) rotate(-4deg); }
  50%  { transform: scale(1.22) rotate(4deg); }
  75%  { transform: scale(1.1) rotate(-2deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.cn-mentor-img-wrap.bouncing {
  animation: cn-mentor-bounce .55s cubic-bezier(.36,.07,.19,.97);
}
/* Auto-cycle glow ring */
@keyframes cn-mentor-glow {
  0%,100% { box-shadow: 0 0 0 4px rgba(99,102,241,.15), 0 4px 16px rgba(0,0,0,.12); }
  50%      { box-shadow: 0 0 0 8px rgba(99,102,241,.28), 0 6px 20px rgba(0,0,0,.18); }
}
.cn-mentor-img-wrap {
  animation: cn-mentor-glow 3s ease-in-out infinite;
}

/* ─── PESO COLUMN VISIBILITY ─────────────────────────────────/* ─── PESO COLUMN VISIBILITY ─── */
.cn-eval-row.simple .cn-eval-peso,
.cn-eval-row.simple .cn-peso-wrap { display: none; }

/* ─── NOTA/PESO WRAPPER + TOOLTIP ─── */
.cn-nota-wrap,
.cn-peso-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 80px;
  flex-shrink: 0;
}
/* Keep the nota and peso inputs full width inside the wrapper */
.cn-nota-wrap .cn-eval-nota,
.cn-peso-wrap .cn-eval-peso {
  width: 100%;
  padding-right: 10px; /* room for the floating hint */
}

/* ─── HINT BUTTON (the animated "?" circle) ──────────────────────── */
.cn-hint {
  position: absolute;
  top: -8px;
  right: -9px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(99,102,241,.4);
  /* pulse animation on load */
  animation: cn-hint-pulse 2.4s ease-in-out infinite;
  transition: transform .15s, box-shadow .15s;
}
.cn-hint:hover,
.cn-hint:focus {
  transform: scale(1.2);
  box-shadow: 0 4px 14px rgba(99,102,241,.6);
  animation: none; /* stop pulse on hover so it doesn't jitter */
  outline: none;
}
@keyframes cn-hint-pulse {
  0%,100% { box-shadow: 0 2px 8px rgba(99,102,241,.4); transform: scale(1); }
  50%      { box-shadow: 0 0 0 5px rgba(99,102,241,.15); transform: scale(1.1); }
}

.cn-hint-icon {
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  font-family: inherit;
  pointer-events: none;
}

/* ─── TOOLTIP BUBBLE ─────────────────────────────────────────────── */
.cn-hint-tooltip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: #1e1b4b;
  color: #e0e7ff;
  font-size: .75rem;
  font-weight: 500;
  line-height: 1.5;
  padding: 8px 12px;
  border-radius: 10px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s ease, transform .2s ease;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
  border: 1px solid rgba(139,92,246,.3);
  text-align: center;
  z-index: 100;
}
/* little arrow pointing down */
.cn-hint-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #1e1b4b;
}
.cn-hint-tooltip strong { color: #a78bfa; }
.cn-hint-tooltip small  { color: #818cf8; font-size: .68rem; }

/* Show tooltip on button hover/focus */
.cn-hint:hover  .cn-hint-tooltip,
.cn-hint:focus  .cn-hint-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* If tooltip would go off-screen on the right (last rows may shift it) ─ keep it visible */
@media (max-width: 480px) {
  .cn-hint-tooltip {
    left: auto;
    right: 0;
    transform: translateY(6px);
  }
  .cn-hint:hover .cn-hint-tooltip,
  .cn-hint:focus .cn-hint-tooltip {
    transform: translateY(0);
  }
  .cn-hint-tooltip::after {
    left: auto;
    right: 8px;
  }
}

/* ─── SECTION TITLE ──────────────────────────────────────────────── */
.cn-section-label {
  font-size: .75rem; font-weight: 700; color: var(--cn-muted);
  text-transform: uppercase; letter-spacing: .7px; margin-bottom: 10px;
  display: flex; align-items: center; gap: 6px;
}
.cn-section-label::after {
  content: ''; flex: 1; height: 1px; background: var(--cn-border);
}

/* ─── DATA-TOOLTIP (For Buttons) ─────────────────────────────────── */
[data-tooltip]:hover::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e1b4b;
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  z-index: 20;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
[data-tooltip]:hover::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: #1e1b4b;
  pointer-events: none;
  z-index: 20;
}

/* ─── MOBILE ─────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .cn-hero { padding: 90px .75rem 50px; }
  .cn-hero h1 { font-size: 1.8rem; }
  .cn-eval-row { grid-template-columns: 1fr 60px 60px 36px; gap: 6px; }
  .cn-eval-name { font-size: .82rem; padding: 9px 10px; }
  .cn-eval-nota { width: 60px; padding: 9px 6px; }
  .cn-eval-peso { width: 60px; padding: 9px 6px; font-size: .78rem; }
  .cn-nota-wrap { width: 60px; }
  .cn-peso-wrap { width: 60px; }
  .cn-explore-btns { grid-template-columns: 1fr 1fr; }
  .cn-necesito-inputs { grid-template-columns: 1fr; }
  .cn-hero-stats { gap: 10px; }
  .cn-hero-stat { padding: 10px 14px; }
}

/* ─── NAV ESTUDIANTES DROPDOWN ───────────────────────────────────── */
.dropdown-estudiantes {
  min-width: 300px;
}

/* --- PRINT RULES -------------------------------------------------- */
@media print {
  /* Ocultar todo lo que no sea la boleta (columna izquierda, encabezados, etc) */
  header, footer, nav, .site-header, .site-footer, .cn-hero, .cn-col-left, .cn-explore-section, .cn-necesito-card { 
    display: none !important; 
  }
  body { background: #fff !important; margin: 0 !important; padding: 0 !important; }
  
  /* Ocultar elementos dentro de la boleta que no deben imprimirse */
  #btn-exportar, #btn-imprimir, .cn-tips-section { display: none !important; }
  
  /* Centrar panel de resultado simulando la boleta */
  .cn-wrapper { 
    display: flex !important; 
    justify-content: center !important;
    width: 100% !important; 
    padding: 20px !important; 
    margin: 0 !important;
  }
  
  .cn-result-panel {
    width: 100% !important;
    max-width: 400px !important;
    margin: 0 auto !important;
    page-break-inside: avoid;
  }
  
  .cn-card {
    box-shadow: none !important;
    border: 1px solid #e2e8f0 !important;
    margin-bottom: 20px !important;
    break-inside: avoid;
  }
  
  /* Mantener estructura */
  .cn-eval-row { break-inside: avoid; }
  
  .cn-eval-name, .cn-eval-nota, .cn-eval-peso, select { 
    border: none !important; 
    border-bottom: 1px solid #cbd5e1 !important;
    background: transparent !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    padding: 5px !important;
    color: #0f172a !important;
  }
  
  * { 
    -webkit-print-color-adjust: exact !important; 
    print-color-adjust: exact !important; 
  }
}