/* ═══════════════════════════════════════════════════════
   TOOLS.CSS — Section 07: Tools & Stack
   Category groups · Proficiency bars · Scroll reveal
═══════════════════════════════════════════════════════ */

/* ── Section ───────────────────────────────────────── */
.tools-section {
  background: #f7f7f7;
  position: relative;
  padding: clamp(80px, 12vw, 140px) 0 clamp(60px, 8vw, 100px);
  overflow: hidden;
}

.tools-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70%;
  height: 70%;
  background: radial-gradient(
    ellipse at center,
    rgba(65, 189, 254, 0.06) 0%,
    rgba(225, 17, 251, 0.03) 50%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.tools-bg-num {
  position: absolute;
  bottom: clamp(16px, 3vw, 48px);
  left: clamp(12px, 4vw, 64px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(100px, 18vw, 220px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 0, 0, 0.04);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ── Header ────────────────────────────────────────── */
.tools-header {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(48px, 7vw, 80px);
  text-align: center;
}

.tools-section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.4);
  margin-bottom: var(--sp-4);
  justify-content: center;
}

.tools-section-label::before,
.tools-section-label::after {
  content: '';
  width: 20px;
  height: 1px;
  background: rgba(0, 0, 0, 0.2);
  display: block;
  flex-shrink: 0;
}

.tools-heading {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5.5vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: #0a0a0a;
  margin-bottom: var(--sp-4);
}

.tools-subheading {
  font-family: var(--font-body);
  font-size: clamp(var(--text-sm), 1.5vw, var(--text-lg));
  color: rgba(0, 0, 0, 0.55);
  max-width: 420px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── Marquee container ──────────────────────────────── */
.tools-categories {
  position: relative;
  z-index: 1;
}

.tools-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 7%, black 93%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 7%, black 93%, transparent 100%);
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}

.tools-marquee.tools-dragging {
  cursor: grabbing;
}

.tools-track {
  display: flex;
  align-items: flex-start;
  gap: clamp(20px, 3vw, 36px);
  width: max-content;
  will-change: transform;
  padding: 12px 0 24px;
}

/* ── Tool item ──────────────────────────────────────── */
.tool-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 108px;
  cursor: default;
  flex-shrink: 0;
}

.tool-item-icon {
  width: 84px;
  height: 84px;
  border-radius: 18px;
  overflow: hidden;
  border: none;
  background: transparent;
  transition:
    box-shadow var(--t-base),
    transform var(--t-base);
  flex-shrink: 0;
}

.tool-item-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.tool-item-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 0;
  box-sizing: border-box;
}

.tool-item:hover .tool-item-icon {
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.18);
  transform: translateY(-5px);
}

.tool-item-name {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: 0.04em;
  color: rgba(0, 0, 0, 0.45);
  text-align: center;
  line-height: 1.35;
  width: 100%;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  white-space: normal;
  transition: color var(--t-fast);
}

.tool-item:hover .tool-item-name {
  color: #0a0a0a;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 480px) {
  .tool-item { width: 88px; }
  .tool-item-icon { width: 68px; height: 68px; }
}

/* ── Tool Tooltip ───────────────────────────────────── */
.tool-hover-tip {
  position: fixed;
  z-index: 9999;
  width: 210px;
  background: rgba(8, 8, 8, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-top: 2px solid var(--tip-accent, rgba(255, 255, 255, 0.22));
  border-radius: 10px;
  padding: 11px 14px 13px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.tool-hover-tip.visible {
  opacity: 1;
  transform: translateY(0);
}

.tool-hover-tip::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: rgba(8, 8, 8, 0.96);
  border-right: 1px solid rgba(255, 255, 255, 0.09);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.tool-hover-tip-name {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
  margin-bottom: 6px;
}

.tool-hover-tip-desc {
  font-family: var(--font-body);
  font-size: var(--text-2xs);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.5;
}

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .tools-track {
    flex-wrap: wrap;
    width: 100%;
    justify-content: center;
  }
  .tool-item:hover .tool-item-icon { transform: none; }
  .tool-hover-tip { transition: none; }
}