/* ══════════════════════════════════════════════════════════════════════════════
   APEX · App Plan Page — Enhanced Styling
   ══════════════════════════════════════════════════════════════════════════════ */

/* ── Phase Cards Grid ─────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.about-card {
  background: var(--panel);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 24px;
  transition: all var(--trans);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0.6;
  transition: opacity var(--trans);
}

.about-card:hover {
  border-color: var(--border2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.about-card:hover::before {
  opacity: 1;
}

.about-card .ac-icon {
  font-size: 28px;
  margin-bottom: 12px;
  display: block;
  filter: drop-shadow(0 0 8px rgba(0,229,200,0.2));
}

.about-card h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--white);
  margin-bottom: 10px;
}

.about-card p {
  font-size: 12.5px;
  color: var(--text2);
  line-height: 1.7;
}

.about-card p strong {
  font-weight: 600;
}

.about-card p code {
  background: rgba(0,229,200,0.08);
  border: 1px solid rgba(0,229,200,0.15);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
}

/* ── Technical Stack Table ─────────────────────────────────────────────────── */
.plan-stack-table {
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow: hidden;
  margin-bottom: 24px;
}

.plan-stack-table .stack-header {
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr;
  padding: 14px 20px;
  background: rgba(0,229,200,0.04);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--text3);
  text-transform: uppercase;
}

.plan-stack-table .stack-row {
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background var(--trans);
}

.plan-stack-table .stack-row:last-child {
  border-bottom: none;
}

.plan-stack-table .stack-row:hover {
  background: rgba(0,229,200,0.03);
}

.plan-stack-table .stack-layer {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.plan-stack-table .stack-tech {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--white);
}

.plan-stack-table .stack-purpose {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.5;
}

/* ── API Contract Block ────────────────────────────────────────────────────── */
.api-contract {
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 24px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.api-contract::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--blue), var(--teal));
  opacity: 0.5;
}

.api-contract .api-method {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.api-contract .api-method .method-badge {
  background: rgba(0,229,200,0.12);
  color: var(--teal);
  padding: 4px 12px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.api-contract .api-method .endpoint {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--white);
  font-weight: 600;
}

.api-contract .code-block {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--text2);
}

.api-contract .code-block .comment {
  color: var(--text3);
}

.api-contract .code-block .string {
  color: var(--green);
}

.api-contract .code-block .number {
  color: var(--gold);
}

.api-contract .code-block .key {
  color: var(--text);
}

/* ── Classroom Integration Cards ───────────────────────────────────────────── */
.classroom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.classroom-card {
  background: var(--panel);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 24px;
  transition: all var(--trans);
}

.classroom-card:hover {
  border-color: var(--border2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.classroom-card .cc-icon {
  font-size: 28px;
  margin-bottom: 12px;
  display: block;
}

.classroom-card h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--white);
  margin-bottom: 10px;
}

.classroom-card p {
  font-size: 12.5px;
  color: var(--text2);
  line-height: 1.7;
}

.classroom-card p strong {
  font-weight: 600;
}

.colab-btn {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 22px;
  background: rgba(0,229,200,0.08);
  color: var(--teal);
  border: 1px solid rgba(0,229,200,0.3);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.colab-btn:hover {
  background: var(--teal);
  color: #0a0a0c;
  box-shadow: 0 0 20px rgba(0,229,200,0.3);
  transform: translateY(-1px);
}

/* ── Exercise Plan Card (Results Panel) ─────────────────────────────────── */
.exercise-plan-card {
  background: linear-gradient(135deg, #0b1120 0%, #070b14 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 24px;
  margin-top: 18px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.plan-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.plan-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--teal);
  margin-bottom: 4px;
  font-weight: 700;
}

.plan-header h3 {
  font-family: var(--font-head);
  font-size: 18px;
  color: var(--white);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.download-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 6px 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.download-btn:hover {
  background: var(--teal);
  color: #000;
  border-color: var(--teal);
}

.plan-grid {
  display: grid;
  gap: 16px;
}

.plan-section {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 8px;
  padding: 14px;
}

.ps-head {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ps-head span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--teal);
  background: rgba(0,229,200,0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.ps-content {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text2);
}

.ps-content ul {
  margin: 0;
  padding-left: 18px;
}

.ps-content li {
  margin-bottom: 4px;
}

.plan-footer {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255,255,255,0.08);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text3);
  text-align: center;
}

.class-tag {
  color: var(--white);
  font-weight: 700;
  display: inline-block;
  background: rgba(255,255,255,0.1);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ── PRINT STYLES ───────────────────────────────────────────────────────── */
@media print {
  .app-shell nav, 
  .hero, 
  .form-panel, 
  .class-result-card, 
  .jump-card, 
  .radar-card, 
  .tips-card,
  .download-btn {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    overflow: visible !important;
  }

  main {
    margin: 0 !important;
    padding: 0 !important;
  }

  .exercise-plan-card {
    display: block !important;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background: white !important;
    color: black !important;
    border: 2px solid black !important;
    box-shadow: none !important;
    margin: 0 !important;
  }

  .plan-header h3, 
  .ps-head, 
  .ps-content, 
  .plan-footer {
    color: black !important;
  }

  .ps-head span {
    background: #000 !important;
    color: #fff !important;
  }
  
  .exercise-plan-card h3 {
    font-size: 24pt !important;
  }
}