/* ─────────────────────────────────────────
   sections.css — All content section styles
───────────────────────────────────────── */

/* ══════════════════════════════
   TUTORIALS
══════════════════════════════ */
#tutorials { background: var(--bg2); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius2);
  background: linear-gradient(135deg, var(--glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover { border-color: var(--border2); transform: translateY(-4px); }
.card:hover::before { opacity: 1; }

.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}
.card-icon.html   { background: rgba(247,99,50,0.15); }
.card-icon.css    { background: rgba(79,142,255,0.15); }
.card-icon.js     { background: rgba(255,214,10,0.15); }
.card-icon.ts     { background: rgba(79,142,255,0.15); }
.card-icon.react  { background: rgba(6,214,160,0.15); }
.card-icon.python { background: rgba(124,58,237,0.15); }

.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.card p  { font-size: 0.88rem; color: var(--text2); line-height: 1.65; margin-bottom: 1.25rem; }

.card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text3);
}

.card-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap var(--transition);
}
.card-link:hover { gap: 9px; }

/* ══════════════════════════════
   PLAYGROUND
══════════════════════════════ */
#playground { background: var(--bg); }

.playground-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  min-height: 500px;
}
@media (max-width: 700px) {
  .playground-wrap { grid-template-columns: 1fr; }
}

.pg-panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pg-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.pg-dots { display: flex; gap: 6px; }
.pg-dot  { width: 11px; height: 11px; border-radius: 50%; }
.pg-dot-r { background: #ff5f57; }
.pg-dot-y { background: #febc2e; }
.pg-dot-g { background: #28c840; }

.pg-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text2);
  margin-left: 4px;
}

.code-tabs { display: flex; margin-left: auto; gap: 4px; }
.code-tab {
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 4px 10px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: var(--text3);
  transition: all var(--transition);
}
.code-tab.active { background: var(--accent); color: #fff; }

#code-editor {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.83rem;
  line-height: 1.75;
  padding: 1.25rem;
  tab-size: 2;
}

#preview-frame {
  flex: 1;
  border: none;
  width: 100%;
  background: white;
}

.pg-run-btn {
  margin: 0.75rem 1rem;
  background: var(--accent3);
  border: none;
  border-radius: 8px;
  color: #030d0a;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.6rem 1.25rem;
  cursor: pointer;
  transition: all var(--transition);
}
.pg-run-btn:hover { opacity: 0.85; }

/* ══════════════════════════════
   CHALLENGES
══════════════════════════════ */
#challenges { background: var(--bg2); }

.challenges-grid { display: grid; gap: 1rem; }

.challenge-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: all var(--transition);
  cursor: pointer;
}
.challenge-item:hover {
  border-color: var(--accent);
  background: var(--surface2);
  transform: translateX(4px);
}

.ch-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text3);
  min-width: 28px;
}
.ch-info { flex: 1; }
.ch-info h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 3px; }
.ch-info p  { font-size: 0.8rem; color: var(--text2); }

.ch-badge { display: flex; align-items: center; gap: 0.75rem; }
.ch-pts {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent5);
}

/* ══════════════════════════════
   PROJECTS
══════════════════════════════ */
#projects { background: var(--bg); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow: hidden;
  transition: all var(--transition);
}
.project-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}

.project-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.project-thumb.t1 { background: linear-gradient(135deg, #0d1b4b, #1a0a3a); }
.project-thumb.t2 { background: linear-gradient(135deg, #0a2a1a, #0a1a2a); }
.project-thumb.t3 { background: linear-gradient(135deg, #2a0a1a, #1a0a0a); }
.project-thumb.t4 { background: linear-gradient(135deg, #1a1a0a, #0a1a1a); }

.project-thumb-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.35);
  position: absolute;
  bottom: 12px; right: 14px;
  letter-spacing: 1px;
}

.project-body { padding: 1.5rem; }
.project-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 0.75rem; }

.project-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.project-body p  { font-size: 0.83rem; color: var(--text2); line-height: 1.6; margin-bottom: 1.25rem; }

.project-links { display: flex; gap: 0.75rem; }

.proj-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid var(--border2);
  color: var(--text2);
  background: var(--surface);
}
.proj-btn:hover { color: var(--accent); border-color: var(--accent); }
.proj-btn.demo  { background: var(--accent); color: #fff; border-color: var(--accent); }
.proj-btn.demo:hover { opacity: 0.85; }

/* ══════════════════════════════
   BLOG
══════════════════════════════ */
#blog { background: var(--bg2); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 1.75rem;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { border-color: var(--border2); transform: translateY(-3px); }

.blog-cat {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.blog-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.6rem; line-height: 1.4; }
.blog-card p  { font-size: 0.85rem; color: var(--text2); line-height: 1.65; flex: 1; margin-bottom: 1.25rem; }

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text3);
  font-family: var(--mono);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: auto;
}

.blog-author { display: flex; align-items: center; gap: 7px; }
.blog-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
}

/* ══════════════════════════════
   CONTACT
══════════════════════════════ */
#contact { background: var(--bg); }

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}
@media (max-width: 700px) {
  .contact-wrap { grid-template-columns: 1fr; gap: 2.5rem; }
}

.contact-info h2 { font-size: 2rem; font-weight: 800; margin-bottom: 1rem; }
.contact-info p  { color: var(--text2); font-size: 0.92rem; line-height: 1.75; margin-bottom: 2rem; }

.contact-links { display: flex; flex-direction: column; gap: 0.75rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text2);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color var(--transition);
}
.contact-link:hover { color: var(--accent); }

.cl-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

/* ── Contact form ── */
.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 0.45rem; }
.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text2);
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 0.8rem 1rem;
  outline: none;
  resize: vertical;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,255,0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text3); }

.form-submit {
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  align-self: flex-start;
  box-shadow: 0 0 25px rgba(79,142,255,0.3);
}
.form-submit:hover { opacity: 0.88; transform: translateY(-1px); }

.form-success {
  display: none;
  padding: 1rem 1.25rem;
  background: rgba(6,214,160,0.1);
  border: 1px solid rgba(6,214,160,0.3);
  border-radius: 10px;
  color: var(--accent3);
  font-size: 0.88rem;
  font-weight: 600;
}