/* ── Section intro ───────────────────────────────── */
.section-intro-block {
  background: rgba(13,13,34,0.7);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  padding: 2rem 2.5rem;
  margin-bottom: 2.5rem;
  clip-path: polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,0 100%);
  position: relative;
  overflow: hidden;
}
.section-intro-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(0,229,255,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.section-intro-header {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
}
.section-intro-line {
  width: 6px;
  height: 3.5rem;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
}
.section-intro-title {
  font-family: 'Orbitron', monospace;
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--text);
  text-shadow: 0 0 12px rgba(0,229,255,0.3);
  line-height: 1.1;
}
.section-intro-text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.05rem;
  color: #c0c0e0;
  line-height: 1.6;
  letter-spacing: 0.5px;
  max-width: 700px;
}
@media (max-width: 600px) {
  .section-intro-title { font-size: 1.4rem; letter-spacing: 3px; }
  .section-intro-block { padding: 1.5rem 1.2rem; }
  .section-intro-line { height: 2.2rem; }
  .tips-grid { grid-template-columns: 1fr; }
}

/* ── Tips grid ───────────────────────────────────── */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.6rem;
  margin-bottom: 2rem;
}

.tip-card {
  background: rgba(13,13,34,0.85);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent2, #9b59b6);
  clip-path: polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(0,0,0,0.55), 0 0 10px color-mix(in srgb, var(--accent2, #9b59b6) 12%, transparent);
}

/* ── Card media (iframe o imagen) ────────────────── */
.tip-card-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #080818;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.tip-card-media iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: none;
}

/* Cuando es imagen (no video) */
.tip-card-img {
  display: flex;
  align-items: center;
  justify-content: center;
}
.tip-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(13,13,34,0.9));
  pointer-events: none;
}
.tip-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s;
}
.tip-card:hover .tip-card-img img { transform: scale(1.06); }

.tip-card-placeholder {
  font-size: 4rem;
  color: #1a1a3a;
}

/* ── Card body ───────────────────────────────────── */
.tip-card-body {
  padding: 1.1rem 1.3rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tip-card-title {
  font-family: 'Orbitron', monospace;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
}

.tip-card-desc {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.95rem;
  color: #c0c0e0;
  line-height: 1.55;
  flex: 1;
}

/* ── Modals ──────────────────────────────────────── */
.modal-box {
  background: #0d0d22;
  border: 1px solid var(--accent);
  clip-path: polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
  max-width: 480px;
  width: 90%;
  padding: 1.8rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.modal-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2), transparent);
}
.modal-title {
  font-family: 'Orbitron', monospace;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 0.4rem;
}
.modal-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
}
.modal-input {
  width: 100%;
  background: rgba(5,5,15,0.8);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.8rem;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  margin-top: 0.2rem;
  margin-bottom: 0.4rem;
}
.modal-input:focus { outline: none; border-color: var(--accent); }
.modal-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: flex-end;
  margin-top: 0.4rem;
}