/* ========================================
   Sections — Hero, Projects, Playground,
   Mindset, Writing, About, Contact, Footer
   ======================================== */

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-block: 0;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-block: var(--space-2xl);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 60px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-sm);
  color: #fff;
}

.hero__subtitle {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-sm);
}

.hero__tagline {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

/* ---- Projects / Career List ---- */

.projects {
  background-color: var(--color-bg);
}

.career-list {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.career-entry {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.career-entry__date {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: 3px;
  white-space: nowrap;
}

.career-entry__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.career-entry__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.career-entry__title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  transition: opacity var(--duration-fast) var(--ease-out);
  display: inline;
}

.career-entry__title:hover {
  opacity: 0.65;
}

.career-entry__title--disabled {
  cursor: default;
  text-decoration: none;
  color: var(--color-text-muted);
}

.career-entry__soon {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  vertical-align: middle;
  position: relative;
  top: -1px;
}

.career-entry__images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-width: 560px;
}

.career-entry__images:empty {
  display: none;
}

.career-entry__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-md);
  background-color: var(--color-placeholder);
  display: block;
}

@media (max-width: 600px) {
  .career-entry {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .career-entry__images {
    grid-template-columns: 1fr;
  }
}

/* ---- Playground ---- */

.playground {
  background-color: var(--color-bg);
}

.playground__intro {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-top: calc(var(--space-lg) * -1 + var(--space-sm));
  margin-bottom: var(--space-lg);
  max-width: 600px;
}

.playground__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* ---- Mindset (Carousel) ---- */

.mindset {
  background-color: var(--color-bg-alt);
}

/* Header block */
.mindset-carousel__header {
  margin-bottom: var(--space-md);
}

.mindset-carousel__title-block {
  margin-bottom: 1.5rem;
}

.mindset-carousel__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin-top: -0.5rem;
}

/* Controls row */
.mindset-carousel__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 980px) {
  .mindset-carousel__controls {
    flex-direction: column;
    align-items: stretch;
  }
}

/* Filter chips */
.mindset-carousel__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mc-chip {
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
}

.mc-chip:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text-muted);
}

.mc-chip:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

.mc-chip.is-active {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.mc-chip.is-active:hover {
  opacity: 0.9;
}

/* Actions: shuffle + arrows */
.mindset-carousel__actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

@media (max-width: 980px) {
  .mindset-carousel__actions {
    justify-content: space-between;
  }
}

/* Shuffle button */
.mindset-carousel__shuffle-btn {
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.mindset-carousel__shuffle-btn:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text-muted);
  transform: translateY(-1px);
}

.mindset-carousel__shuffle-btn:hover svg {
  transform: rotate(180deg);
  transition: transform 200ms ease;
}

.mindset-carousel__shuffle-btn:active {
  transform: translateY(0);
}

.mindset-carousel__shuffle-btn:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

/* Nav arrows */
.mindset-carousel__nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mindset-carousel__arrow {
  width: 2.5rem;
  height: 2.5rem;
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 150ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.mindset-carousel__arrow:hover:not(:disabled) {
  background-color: var(--color-surface);
  border-color: var(--color-text-muted);
  transform: translateY(-1px);
}

.mindset-carousel__arrow:active:not(:disabled) {
  transform: translateY(0);
}

.mindset-carousel__arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.mindset-carousel__arrow:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

.mindset-carousel__position {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 500;
  min-width: 70px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* Carousel row: side arrows + viewport */
.mindset-carousel__row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mindset-carousel__side-arrow {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  border-radius: 50%;
  cursor: pointer;
  transition: all 150ms ease;
}

.mindset-carousel__side-arrow:hover:not(:disabled) {
  background-color: var(--color-surface);
  border-color: var(--color-text-muted);
  transform: scale(1.05);
}

.mindset-carousel__side-arrow:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

/* Carousel viewport */
.mindset-carousel__viewport {
  overflow: hidden;
  flex: 1;
}

.mindset-carousel__track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 680px) {
  .mindset-carousel__track {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .mindset-carousel__track {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Empty state */
.mindset-carousel__empty {
  padding: 4rem 2rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.mindset-carousel__empty p {
  margin: 0;
}

/* ---- Writing ---- */

.writing {
  background-color: var(--color-bg);
}

.writing__intro {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-top: calc(var(--space-lg) * -1 + var(--space-sm));
  margin-bottom: var(--space-lg);
  max-width: 600px;
}

.writing__list {
  max-width: 800px;
}

/* ---- Contact ---- */

.contact {
  background-color: var(--color-bg-alt);
  text-align: center;
}

.contact__text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.contact__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---- Footer ---- */

.site-footer {
  padding-block: var(--space-xl) var(--space-lg);
  background-color: var(--color-bg);
}

.site-footer__header {
  padding-bottom: var(--space-lg);
}

.site-footer__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  font-style: normal;
  letter-spacing: -0.02em;
}

.site-footer__divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.site-footer__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.site-footer__link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.site-footer__link:hover {
  color: var(--color-text);
}

.site-footer__connect-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-footer__separator {
  color: var(--color-text-muted);
}

.site-footer__credit {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-start;
}

@media (min-width: 768px) {
  .site-footer__col--right .site-footer__credit {
    justify-content: flex-end;
  }
}

.site-footer__icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  vertical-align: middle;
}

.site-footer__col--right {
  text-align: left;
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .site-footer__col--right {
    text-align: right;
  }
}

/* ========================================
   Responsive — Tablet & Desktop
   ======================================== */

@media (min-width: 768px) {

  /* Playground: 2 columns */
  .playground__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  /* Writing: date gets more room */
  .writing-card__date {
    min-width: 100px;
  }
}

@media (min-width: 1024px) {

  /* Playground: 4 cols on wide screens */
  .playground__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ========================================
   Scroll reveal animation base
   (activated by JS via .is-visible class)
   ======================================== */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
  }

  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Stagger children */
  .reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
  }

  .reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
  .reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 100ms; }
  .reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 200ms; }
  .reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 300ms; }

  .reveal-stagger.is-visible > * {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Intro + Career ---- */

.intro-career {
  background-color: var(--color-bg);
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.intro-career__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 780px;
}

.intro-career__bio p {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.intro-career__link {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border);
  transition: text-decoration-color 150ms ease;
}

.intro-career__link:hover {
  text-decoration-color: var(--color-text);
}

.intro-career__list {
  display: flex;
  flex-direction: column;
}

.intro-career__row {
  display: grid;
  grid-template-columns: 3rem 11rem 1fr;
  gap: 1.5rem;
  align-items: center;
  padding-block: 0.7rem;
  border-top: 1px solid var(--color-border);
}

.intro-career__row:first-child {
  border-top: none;
}

.intro-career__year {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.intro-career__company {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.intro-career__role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .intro-career__bio p {
    font-size: var(--text-lg);
  }

  .intro-career__row {
    grid-template-columns: 2.5rem 1fr;
  }

  .intro-career__role {
    display: none;
  }
}

/* ========================================
   Theme transition — smooth color change
   ======================================== */

body,
.project-card,
.play-card,
.mc-card,
.mc-chip,
.writing-card,
.contact__link,
.tag,
.pill-nav__overlay {
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}