/* ============================================
   COMPONENT: PRINCIPLES — mobile-first
   ============================================ */

/* Our AI literacy box is hidden by request */
.principles-grid .ai-literacy-box {
  display: none !important;
}

/* Desktop: span full width below the 5 principle cards */
@media (min-width: 769px) {
  .principles-grid .ai-literacy-box {
    grid-column: 1 / -1;
  }
}

.principle-card.ai-literacy-box::before {
  display: none;
}

/* ── Mobile default: 3-column compact grid ── */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
  margin-top: 1.5rem;
}

.principle-card {
  background: var(--white);
  border: none;
  border-radius: 0;
  padding: 0.5rem 0.35rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.principle-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--principle-accent, var(--gray-400)), var(--badge-black));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.principle-card:hover {
  border-color: var(--principle-accent, var(--gray-300));
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.principle-card:hover::before {
  transform: scaleX(1);
}

/* ── Badge — mobile: 56px ────────────────── */
.principle-card .principle-badge {
  margin-bottom: 0.2rem;
  min-height: 56px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  max-width: 56px;
  margin-left: auto;
  margin-right: auto;
}

.principle-card .principle-badge__img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  max-height: 56px;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* Hide broken images in principle badges */
.principle-card .principle-badge__img.is-broken {
  display: none !important;
}

.principle-card .principle-badge__placeholder {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: 2px dashed var(--gray-300);
}

.principle-card .principle-badge__placeholder-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Accent colour tokens ────────────────── */
.principle-card--safe {
  --principle-accent: var(--badge-safe);
}

.principle-card--smart {
  --principle-accent: var(--badge-smart);
}

.principle-card--creative {
  --principle-accent: var(--badge-creative);
}

.principle-card--responsible {
  --principle-accent: var(--badge-responsible);
}

.principle-card--future {
  --principle-accent: var(--badge-future);
}

/* ── Typography — mobile ─────────────────── */
.principle-card h3 {
  font-size: 0.6875rem;
  /* 11px — was 0.5rem (8px), now readable */
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--gray-900);
  line-height: 1.2;
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

.principle-card .section-desc {
  font-size: 0.6875rem;
  /* 11px — was 0.45rem (7px) */
  line-height: 1.25;
  margin-top: 0.15rem;
  max-width: none;
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

/* ── Small mobile (≤ 480px): slightly tighter */
@media (max-width: 480px) {
  .principles-grid {
    gap: 0.35rem;
  }

  .principle-card {
    padding: 0.4rem 0.25rem;
  }

  .principle-card .principle-badge {
    min-height: 48px;
    width: 48px;
    max-width: 48px;
    margin-bottom: 0.15rem;
  }

  .principle-card .principle-badge__img {
    max-height: 48px;
  }

  .principle-card .principle-badge__placeholder {
    width: 48px;
    height: 48px;
  }

  .principle-card .principle-badge__placeholder-text {
    font-size: 0.9rem;
  }
}

/* ── Tablet (769–1024px): 3-col, normal gap ─ */
@media (min-width: 769px) and (max-width: 1024px) {
  .principles-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .principle-card {
    padding: 1rem 0.75rem;
  }

  .principle-card .principle-badge {
    min-height: 120px;
    width: 100%;
    max-width: 100%;
    margin-bottom: 0.5rem;
  }

  .principle-card .principle-badge__img {
    max-height: 120px;
  }

  .principle-card .principle-badge__placeholder {
    width: 120px;
    height: 120px;
  }

  .principle-card .principle-badge__placeholder-text {
    font-size: 1.5rem;
  }

  .principle-card h3 {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
  }

  .principle-card .section-desc {
    font-size: 0.75rem;
    margin-top: 0.35rem;
  }
}

/* ── Desktop (≥ 1025px): 5-column full layout ── */
@media (min-width: 1025px) {
  .principles-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
  }

  .principle-card {
    padding: 1rem 0.75rem;
  }

  .principle-card .principle-badge {
    min-height: 150px;
    width: 100%;
    max-width: 100%;
    margin-bottom: 0.5rem;
  }

  .principle-card .principle-badge__img {
    max-height: 150px;
  }

  .principle-card .principle-badge__placeholder {
    width: 150px;
    height: 150px;
  }

  .principle-card .principle-badge__placeholder-text {
    font-size: 1.75rem;
  }

  .principle-card h3 {
    font-size: 0.9rem;
    letter-spacing: 0.05em;
  }

  .principle-card .section-desc {
    font-size: 0.8rem;
    margin-top: 0.35rem;
  }
}