/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn--primary:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(185,218,255,0.25);
}

.btn--ghost {
  background: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border-2);
}

.btn--ghost:hover {
  background: var(--color-surface-3);
  border-color: var(--color-border-2);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid rgba(185,218,255,0.3);
}

.btn--outline:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.btn--sm {
  font-size: 0.8rem;
  padding: 8px 18px;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--color-border-2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.card__body {
  padding: 28px;
}

.card__tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.card__title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 10px;
}

.card__desc {
  font-size: 0.9rem;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 20px;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

/* ============================================================
   MARQUEE — Infinite Horizontal Scroll
   ============================================================ */

/* ── Section ── */
.marquee-section {
  position: relative;
  background: var(--color-black);
  padding: 100px 0 80px;
  overflow: hidden;
}

.marquee-section__header {
  text-align: center;
  padding: 0 40px;
  margin-bottom: 48px;
}

.marquee-section__header .section__subtitle {
  margin: 0 auto 0;
}

/* ── Marquee container ── */
.marquee {
  width: 100%;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
}

/* ── Track ── */
.marquee__track {
  display: flex;
  gap: 24px;
  width: max-content;
  will-change: transform;
}

/* ── Card ── */
.marquee__track .pj-card {
  flex: 0 0 clamp(320px, 30vw, 400px);
}

.marquee__track .pj-card:hover {
  transform: none;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--color-border-2);
}

.marquee__track .pj-card__image {
  aspect-ratio: 16 / 9;
}

.marquee__track .pj-card__title {
  font-size: 1.05rem;
}

/* ── Footer ── */
.marquee-section__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 40px 40px 0;
  gap: 24px;
}

/* ── Pause button ── */
.marquee__pause-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-2);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}

.marquee__pause-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(185,218,255,0.04);
}

.marquee__pause-btn:active {
  transform: scale(0.96);
}

.marquee__pause-icon,
.marquee__play-icon {
  flex-shrink: 0;
}

/* ── Magnetic button ── */
.magnetic-btn {
  display: inline-block;
  position: relative;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============================================================
   SKILLS SHOWCASE — Premium
   ============================================================ */

/* ── Grid ── */
.skills-showcase {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ── Card ── */
.skill-card {
  position: relative;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.3s ease,
    box-shadow 0.3s ease;
  will-change: transform, opacity;
}

.skill-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

.skill-card:nth-child(1).revealed { transition-delay: 0s; }
.skill-card:nth-child(2).revealed { transition-delay: 0.12s; }
.skill-card:nth-child(3).revealed { transition-delay: 0.24s; }
.skill-card:nth-child(4).revealed { transition-delay: 0.36s; }

.skill-card:hover {
  border-color: rgba(185,218,255,0.18);
  box-shadow: 0 24px 64px -12px rgba(0,0,0,0.5);
}

/* ── Glow ── */
.skill-card__glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.skill-card__glow::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(
    135deg,
    transparent 25%,
    rgba(185,218,255,0.25) 50%,
    transparent 75%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.skill-card:hover .skill-card__glow {
  opacity: 1;
}

/* ── Header ── */
.skill-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.skill-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-card__icon .lucide-icon {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
}

.skill-card__info {
  flex: 1;
  min-width: 0;
}

.skill-card__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.skill-card__count {
  font-size: 0.72rem;
  color: var(--color-text-3);
  letter-spacing: 0.02em;
}

/* ── Badge ── */
.skill-card__badge {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.skill-card__badge--pro {
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(185,218,255,0.2);
}

.skill-card__badge--mid {
  color: #6edba8;
  background: rgba(110,219,168,0.1);
  border: 1px solid rgba(110,219,168,0.2);
}

.skill-card__badge--learning {
  color: #f0a060;
  background: rgba(240,160,96,0.1);
  border: 1px solid rgba(240,160,96,0.2);
}

/* ── Skill list ── */
.skill-card__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.skill-card__skill {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.skill-card.revealed .skill-card__skill {
  opacity: 1;
  transform: translateY(0);
}

.skill-card.revealed .skill-card__skill:nth-child(1) { transition-delay: 0.3s; }
.skill-card.revealed .skill-card__skill:nth-child(2) { transition-delay: 0.36s; }
.skill-card.revealed .skill-card__skill:nth-child(3) { transition-delay: 0.42s; }
.skill-card.revealed .skill-card__skill:nth-child(4) { transition-delay: 0.48s; }
.skill-card.revealed .skill-card__skill:nth-child(5) { transition-delay: 0.54s; }
.skill-card.revealed .skill-card__skill:nth-child(6) { transition-delay: 0.6s; }
.skill-card.revealed .skill-card__skill:nth-child(7) { transition-delay: 0.66s; }
.skill-card.revealed .skill-card__skill:nth-child(8) { transition-delay: 0.72s; }
.skill-card.revealed .skill-card__skill:nth-child(9) { transition-delay: 0.78s; }

/* ── Skill row ── */
.skill-card__skill-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.skill-card__skill-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-2);
}

.skill-card__skill-pct {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-3);
  font-variant-numeric: tabular-nums;
}

/* ── Bar ── */
.skill-card__bar {
  width: 100%;
  height: 4px;
  background: var(--color-surface-3);
  border-radius: 2px;
  overflow: hidden;
}

.skill-card__bar-fill {
  height: 100%;
  width: var(--fill);
  background: linear-gradient(90deg, var(--color-accent), rgba(185,218,255,0.5));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.skill-card.revealed .skill-card__bar-fill {
  transform: scaleX(1);
}

/* Learning card bar color */
.skill-card--learning .skill-card__bar-fill {
  background: linear-gradient(90deg, #f0a060, rgba(240,160,96,0.5));
}

/* ── Lucide icon sizing ── */
.skill-group__icon .lucide-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.learning-item__icon .lucide-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* ============================================================
   ARTICLE CARD
   ============================================================ */
/* ── Editorial Articles ── */
.edit-articles {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.edit-articles__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* ── Article item ── */
.edit-article {
  position: relative;
  padding: 0;
  overflow: hidden;
}

.edit-article__line {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.edit-article.is-visible .edit-article__line {
  transform: scaleX(1);
}

.edit-article__inner {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  align-items: flex-start;
}

.edit-articles__row .edit-article:first-child .edit-article__inner {
  padding-right: 24px;
  border-right: 1px solid var(--color-border);
}

.edit-articles__row .edit-article:last-child .edit-article__inner {
  padding-left: 24px;
}

/* ── Index number ── */
.edit-article__num {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-border-2);
  letter-spacing: -0.04em;
  flex-shrink: 0;
  user-select: none;
  transform: translateY(40px);
  opacity: 0;
  filter: blur(8px);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.7s ease,
              filter 0.7s ease;
}

.edit-article.is-visible .edit-article__num {
  transform: translateY(0);
  opacity: 1;
  filter: blur(0);
}

/* ── Content ── */
.edit-article__content {
  flex: 1;
  min-width: 0;
}

.edit-article__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.edit-article__cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  transform: translateY(12px);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.15s,
              opacity 0.5s ease 0.15s;
}

.edit-article.is-visible .edit-article__cat {
  transform: translateY(0);
  opacity: 1;
}

.edit-article__dot {
  font-size: 0.75rem;
  color: var(--color-text-3);
}

.edit-article__date,
.edit-article__read {
  font-size: 0.78rem;
  color: var(--color-text-3);
}

.edit-article__title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin-bottom: 14px;
  overflow: hidden;
}

.edit-article--featured .edit-article__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.edit-article__title .word {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.6s ease;
  margin-right: 0.25em;
}

.edit-article.is-visible .edit-article__title .word {
  transform: translateY(0);
  opacity: 1;
}

.edit-article__excerpt {
  font-size: 0.9rem;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 540px;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

.edit-article.is-visible .edit-article__excerpt {
  clip-path: inset(0 0 0% 0);
}

.edit-article__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap 0.3s ease, transform 0.3s ease;
  transform: translateX(-20px);
  opacity: 0;
}

.edit-article.is-visible .edit-article__link {
  transform: translateX(0);
  opacity: 1;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.55s,
              opacity 0.6s ease 0.55s,
              gap 0.3s ease;
}

.edit-article__link svg {
  transition: transform 0.3s ease;
}

.edit-article__link:hover {
  gap: 12px;
}

.edit-article__link:hover svg {
  transform: translateX(3px);
}

/* ── Hover glow on row articles ── */
.edit-articles__row .edit-article {
  transition: background 0.3s ease;
}

.edit-articles__row .edit-article:hover {
  background: rgba(185, 218, 255, 0.02);
}

/* ── Featured article ── */
.edit-article--featured .edit-article__inner {
  padding: 48px 0;
}

.edit-article--featured .edit-article__excerpt {
  max-width: 620px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .edit-articles__row {
    grid-template-columns: 1fr;
  }

  .edit-articles__row .edit-article:first-child .edit-article__inner {
    padding-right: 0;
    border-right: none;
  }

  .edit-articles__row .edit-article:last-child .edit-article__inner {
    padding-left: 0;
  }

  .edit-article__inner {
    gap: 20px;
  }

  .edit-article__num {
    font-size: 2.5rem;
  }

  .edit-article--featured .edit-article__title {
    font-size: 1.4rem;
  }
}

@media (max-width: 540px) {
  .edit-article__num {
    display: none;
  }

  .edit-article__inner {
    gap: 0;
  }

  .edit-article--featured .edit-article__inner {
    padding: 32px 0;
  }
}

/* ── Article cards (articles.html page) ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.article-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition);
}

.article-card:hover {
  border-color: var(--color-border-2);
  transform: translateY(-4px);
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.article-card__cat {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.article-card__date {
  font-size: 0.78rem;
  color: var(--color-text-3);
}

.article-card__read {
  font-size: 0.78rem;
  color: var(--color-text-3);
}

.article-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 10px;
}

.article-card__excerpt {
  font-size: 0.88rem;
  color: var(--color-text-2);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

.article-card__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
  margin-top: auto;
}

.article-card__link:hover {
  gap: 10px;
}

/* ============================================================
   ABOUT — Cinematic
   ============================================================ */

/* ── Base ── */
.about {
  position: relative;
  background: var(--color-black);
  margin-top: -100px;
}

/* ── Intro statement ── */
.about__intro {
  padding: 80px 0 60px;
}

.about__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 28px;
}

.about__label-line {
  width: 32px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.5;
}

.about__statement {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--color-white);
  margin: 0;
  max-width: 900px;
}

.about__word {
  display: inline-block;
  opacity: 0;
  margin-right: 0.3em;
  will-change: opacity, clip-path, transform;
}

.about__word[data-reveal="fade"] {
  transform: translateY(14px);
}

.about__word[data-reveal="wipe"] {
  transform: translateY(10px);
  clip-path: inset(0 100% 0 0);
}

.about__word--accent {
  color: var(--color-accent);
}

.about__word--end {
  font-weight: 400;
  color: var(--color-text-2);
}

/* ── Grid ── */
.about__grid-wrap {
  padding: 0 0 80px;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}

.about__philosophy {
  padding-right: 20px;
}

.about__philosophy-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.about__philosophy-text {
  font-size: clamp(0.92rem, 1.3vw, 1.02rem);
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about__identity-card {
  position: relative;
  padding: 36px 32px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__identity-glow {
  position: absolute;
  top: -40%;
  right: -30%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(185,218,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.about__identity-content {
  position: relative;
  z-index: 1;
}

.about__identity-role {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.about__identity-sep {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  margin-bottom: 20px;
}

.about__identity-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about__tech-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  border: 1px solid rgba(185,218,255,0.12);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: rgba(185,218,255,0.03);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.about__tech-tag:hover {
  border-color: rgba(185,218,255,0.3);
  background: rgba(185,218,255,0.06);
}

/* ── Stats bar ── */
.about__stats-bar {
  padding: 0 0 100px;
}

.about__stats-inner {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about__stat {
  flex: 1;
  padding: 36px 32px;
  text-align: center;
}

.about__stat-num {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.about__stat-num span {
  color: var(--color-accent);
}

.about__stat-label {
  font-size: 0.78rem;
  color: var(--color-text-3);
  letter-spacing: 0.02em;
}

.about__stat-divider {
  width: 1px;
  background: var(--color-border);
  align-self: stretch;
}

/* ============================================================
   CONTACT CTA (Home)
   ============================================================ */
.cta-section {
  text-align: center;
  padding: 100px 24px;
  position: relative;
  overflow: hidden;
}

.cta-section__glow {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(185,218,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section__subtitle {
  font-size: 1rem;
  color: var(--color-text-2);
  max-width: 460px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* ============================================================
   ARTICLES PAGE
   ============================================================ */
.cat-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* ============================================================
   USES PAGE
   ============================================================ */
.uses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.use-item {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: border-color var(--transition), transform var(--transition);
}

.use-item:hover {
  border-color: var(--color-border-2);
  transform: translateY(-2px);
}

.use-item__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.use-item__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 3px;
}

.use-item__desc {
  font-size: 0.78rem;
  color: var(--color-text-2);
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info__icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent-dim);
  border: 1px solid rgba(185,218,255,0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-info__label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-3);
  margin-bottom: 4px;
}

.contact-info__value {
  font-size: 0.92rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact-info__value a {
  transition: color var(--transition);
}

.contact-info__value a:hover {
  color: var(--color-accent);
}

.contact-social-links {
  display: flex;
  gap: 10px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.contact-social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.contact-social-link:hover {
  color: var(--color-white);
  border-color: var(--color-border-2);
  background: var(--color-surface-3);
}

/* Contact Form */
.form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-2);
  letter-spacing: 0.02em;
}

.form__input,
.form__textarea {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.92rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-3);
}

.form__input:focus,
.form__textarea:focus {
  border-color: rgba(185,218,255,0.4);
  box-shadow: 0 0 0 3px rgba(185,218,255,0.08);
}

.form__textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.6;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__error {
  font-size: 0.78rem;
  color: #f87171;
  display: none;
}

.form__group.error .form__error {
  display: block;
}

.form__group.error .form__input,
.form__group.error .form__textarea {
  border-color: rgba(248,113,113,0.4);
}

.form__success {
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.9rem;
  color: #4ade80;
  display: none;
  align-items: center;
  gap: 10px;
}

.form__success.show {
  display: flex;
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-3);
  margin-bottom: 32px;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__item a {
  color: var(--color-text-3);
  transition: color var(--transition);
}

.breadcrumb__item a:hover {
  color: var(--color-text);
}

.breadcrumb__sep {
  opacity: 0.4;
  font-size: 0.7rem;
}

.breadcrumb__current {
  color: var(--color-text-2);
}

/* ============================================================
   CONTACT PAGE — RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .page-hero {
    padding: calc(var(--nav-height) + 48px) 20px 48px;
  }

  .page-hero__title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .page-hero__subtitle {
    font-size: 0.95rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-grid > .fade-up {
    padding: 32px 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    margin-bottom: 20px;
  }

  .contact-grid > .fade-up .section__title {
    margin-bottom: 24px !important;
  }

  .contact-grid > .fade-up--delay-1 {
    padding: 32px 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    margin-bottom: 0;
  }

  .contact-info__item {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
  }

  .contact-info__item:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }

  .contact-info__icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .contact-info__label {
    font-size: 0.72rem;
    margin-bottom: 2px;
  }

  .contact-info__value {
    font-size: 0.88rem;
  }

  .contact-social-links {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .contact-social-link {
    justify-content: center;
    padding: 10px 12px;
    font-size: 0.8rem;
  }
}

@media (max-width: 540px) {
  .page-hero {
    padding: calc(var(--nav-height) + 32px) 16px 32px;
  }

  .page-hero__label {
    font-size: 0.65rem;
    margin-bottom: 14px;
  }

  .page-hero__title {
    font-size: clamp(1.75rem, 7vw, 2.4rem);
    margin-bottom: 14px;
  }

  .page-hero__subtitle {
    font-size: 0.88rem;
    line-height: 1.6;
  }

  .contact-grid > .fade-up,
  .contact-grid > .fade-up--delay-1 {
    padding: 24px 16px;
    border-radius: var(--radius-lg);
  }

  .contact-grid > .fade-up .section__title {
    font-size: 1.1rem;
    margin-bottom: 20px !important;
  }

  .contact-info__item {
    gap: 12px;
    margin-bottom: 14px;
    padding-bottom: 14px;
  }

  .contact-info__icon {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }

  .contact-info__label {
    font-size: 0.68rem;
  }

  .contact-info__value {
    font-size: 0.82rem;
  }

  .contact-social-links {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 20px;
    padding-top: 16px;
  }

  .contact-social-link {
    padding: 10px 14px;
    font-size: 0.82rem;
  }

  .form {
    gap: 16px;
  }

  .form__row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form__label {
    font-size: 0.78rem;
    margin-bottom: 2px;
  }

  .form__input,
  .form__textarea {
    padding: 14px 16px;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
  }

  .form__textarea {
    min-height: 130px;
  }

  .btn--primary {
    padding: 14px 24px;
    font-size: 0.88rem;
  }
}

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   ICON LINK
   ============================================================ */
.icon-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition);
}

.icon-link:hover {
  gap: 10px;
}

/* ============================================================
   ANIMATIONS / FADE-IN
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up--delay-1 { transition-delay: 0.1s; }
.fade-up--delay-2 { transition-delay: 0.2s; }
.fade-up--delay-3 { transition-delay: 0.3s; }
.fade-up--delay-4 { transition-delay: 0.4s; }

/* ============================================================
   LUCIDE ICONS
   ============================================================ */
.lucide-icon {
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke: currentColor;
  fill: none;
  display: inline-block;
  vertical-align: middle;
}

.value-card__icon .lucide-icon {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

.use-item__icon .lucide-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.contact-info__icon .lucide-icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.skill-group__icon .lucide-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.learning-item__icon .lucide-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* Projects page styles are now in projects.css */

/* ============================================================
   LOADER — Cinematic Entry (v5)
   ============================================================ */

.loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--color-black);
  overflow: hidden;
  transition: background 0.6s ease;
}

.loader--bg-clear {
  background: transparent;
}

/* ── 7 Partition strips ── */
.ldr-strips {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.ldr-strip {
  position: absolute;
  left: calc(var(--i) * (100% / 7));
  width: calc(100% / 7 + 1px);
  height: 100%;
  background: var(--color-black);
  will-change: transform;
  transform: translateY(0);
  border-right: 1px solid rgba(185, 218, 255, 0.08);
  box-shadow: inset -1px 0 0 rgba(185, 218, 255, 0.04);
}

.ldr-strip::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(185, 218, 255, 0.015) 50%,
    rgba(185, 218, 255, 0.03) 100%
  );
  pointer-events: none;
}

.ldr-strip:last-child {
  border-right: none;
  box-shadow: none;
}

.loader--reveal .ldr-strip {
  animation: ldr-strip-up 1.4s cubic-bezier(0.75, 0, 0.25, 1) forwards;
  animation-delay: calc(var(--i) * 0.1s);
}

@keyframes ldr-strip-up {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-105vh); }
}

/* ── Content (centered on top) ── */
.ldr-content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.6s ease;
}

.loader--hide-content .ldr-content {
  opacity: 0;
}

/* ── Icon stage ── */
.ldr-icon-stage {
  position: relative;
  width: 200px;
  height: 200px;
}

.ldr-svg {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
  overflow: visible;
}

/* ── Glow trail (wide, blurred, draws first) ── */
.ldr-trail {
  stroke-dasharray: var(--path-len);
  stroke-dashoffset: var(--path-len);
  opacity: 0;
  filter: blur(12px);
}

.loader--trailing .ldr-trail {
  opacity: 0.6;
}

/* ── Clean stroke (draws on top) ── */
.ldr-stroke {
  stroke-dasharray: var(--path-len);
  stroke-dashoffset: var(--path-len);
  opacity: 0;
  filter: drop-shadow(0 0 6px rgba(185, 218, 255, 0.3));
}

.loader--drawn .ldr-stroke {
  opacity: 1;
}

/* ── Fill reveal ── */
.ldr-fill {
  opacity: 0;
  transition: opacity 0.6s ease;
}

.loader--filled .ldr-fill {
  opacity: 1;
}

/* ── Shimmer sweep ── */
.ldr-shimmer {
  opacity: 0;
  clip-path: inset(0 100% 0 0);
}

.loader--filled .ldr-shimmer {
  animation: ldr-shimmer 0.9s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes ldr-shimmer {
  0%   { opacity: 0; clip-path: inset(0 100% 0 0); }
  20%  { opacity: 1; }
  100% { opacity: 0; clip-path: inset(0 0% 0 0); }
}

/* ── Icon glow ── */
.ldr-glow {
  position: absolute;
  inset: -45%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(185, 218, 255, 0.14) 0%, transparent 55%);
  opacity: 0;
  z-index: 0;
  transition: opacity 0.8s ease;
}

.loader--filled .ldr-glow {
  opacity: 1;
  animation: ldr-glow-breathe 2.5s ease-in-out infinite;
}

@keyframes ldr-glow-breathe {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.08); }
}

/* ── Name ── */
.ldr-name {
  display: flex;
  align-items: center;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.4em;
  color: var(--color-white);
  text-transform: uppercase;
  text-shadow: 0 0 40px rgba(185, 218, 255, 0.3),
               0 0 80px rgba(185, 218, 255, 0.1);
}

.ldr-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.ldr-letter--sp {
  width: 0.45em;
}

.loader--drawn .ldr-letter:nth-child(1)  { opacity: 1; transform: none; transition-delay: 0.50s; }
.loader--drawn .ldr-letter:nth-child(2)  { opacity: 1; transform: none; transition-delay: 0.54s; }
.loader--drawn .ldr-letter:nth-child(3)  { opacity: 1; transform: none; transition-delay: 0.58s; }
.loader--drawn .ldr-letter:nth-child(4)  { opacity: 1; transform: none; transition-delay: 0.62s; }
.loader--drawn .ldr-letter:nth-child(5)  { opacity: 1; transform: none; transition-delay: 0.66s; }
.loader--drawn .ldr-letter:nth-child(6)  { opacity: 1; transform: none; transition-delay: 0.72s; }
.loader--drawn .ldr-letter:nth-child(7)  { opacity: 1; transform: none; transition-delay: 0.76s; }
.loader--drawn .ldr-letter:nth-child(8)  { opacity: 1; transform: none; transition-delay: 0.80s; }
.loader--drawn .ldr-letter:nth-child(9)  { opacity: 1; transform: none; transition-delay: 0.84s; }
.loader--drawn .ldr-letter:nth-child(10) { opacity: 1; transform: none; transition-delay: 0.88s; }
.loader--drawn .ldr-letter:nth-child(11) { opacity: 1; transform: none; transition-delay: 0.92s; }

/* ============================================================
   HOMEPAGE — Mobile Responsive
   ============================================================ */

/* ── About section ── */
@media (max-width: 768px) {
  .about {
    margin-top: -60px;
  }

  .about__intro {
    padding: 60px 20px 40px;
  }

  .about__statement {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  .about__grid-wrap {
    padding: 0 20px 48px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__philosophy {
    padding-right: 0;
  }

  .about__philosophy-title {
    font-size: 0.68rem;
  }

  .about__philosophy-text {
    font-size: 0.9rem;
  }

  .about__identity-card {
    padding: 24px 20px;
  }

  .about__identity-role {
    font-size: 0.95rem;
  }

  .about__stats-bar {
    padding: 0 20px 60px;
  }

  .about__stats-inner {
    flex-wrap: wrap;
  }

  .about__stat {
    flex: 1 1 45%;
    padding: 28px 16px;
  }

  .about__stat-divider {
    display: none;
  }

  .about__stat-num {
    font-size: clamp(1.8rem, 5vw, 2.4rem);
  }

  .about__stat-label {
    font-size: 0.72rem;
  }
}

@media (max-width: 540px) {
  .about {
    margin-top: -40px;
  }

  .about__intro {
    padding: 48px 16px 32px;
  }

  .about__statement {
    font-size: clamp(1.4rem, 5.5vw, 1.8rem);
  }

  .about__grid-wrap {
    padding: 0 16px 40px;
  }

  .about__identity-card {
    padding: 20px 16px;
  }

  .about__identity-role {
    font-size: 0.88rem;
    margin-bottom: 14px;
  }

  .about__identity-sep {
    width: 28px;
    margin-bottom: 14px;
  }

  .about__tech-tag {
    font-size: 0.66rem;
    padding: 4px 10px;
  }

  .about__stats-bar {
    padding: 0 16px 60px;
  }

  .about__stat {
    flex: 1 1 100%;
    padding: 20px 16px;
  }

  .about__stat-num {
    font-size: 1.8rem;
  }

  .skills-showcase {
    grid-template-columns: 1fr;
  }
}

/* ── Marquee section ── */
@media (max-width: 768px) {
  .marquee-section {
    padding: 80px 0 60px;
  }

  .marquee-section__header {
    padding: 0 20px;
    margin-bottom: 32px;
  }

  .marquee__track .pj-card {
    flex: 0 0 280px;
  }

  .marquee__track .pj-card__body {
    padding: 20px;
  }

  .marquee__track .pj-card__title {
    font-size: 1rem;
  }

  .marquee-section__footer {
    flex-direction: column;
    gap: 16px;
    padding: 32px 20px 0;
  }
}

/* ── CTA section ── */
@media (max-width: 768px) {
  .cta-section {
    padding: 60px 20px;
  }

  .cta-section__title {
    font-size: clamp(1.6rem, 5vw, 2.5rem);
  }

  .cta-section__subtitle {
    font-size: 0.92rem;
  }
}

@media (max-width: 540px) {
  .cta-section {
    padding: 48px 16px;
  }
}