/* ═══════════════════════════════════════════════════════════════
   PORTFOLIO STYLES
   ───────────────────────────────────────────────────────────────
   Palette:  #0a0a0a (black)  ·  #f2f0eb (off-white)  ·  #777 (gray)
   Fonts:    Instrument Serif (display)  ·  JetBrains Mono (body)
   Aesthetic: Monochrome, editorial, film-grain canvas texture
   ═══════════════════════════════════════════════════════════════ */


/* ── Custom Properties ──────────────────────────────────────── */

:root {
  --color-bg: #0a0a0a;
  --color-text: #f2f0eb;
  --color-text-secondary: #777;
  --color-border: #2a2a2a;

  --font-display: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --font-body: 'JetBrains Mono', 'Courier New', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  --transition-fast: 0.2s ease;
  --transition-base: 0.35s ease;
  --transition-slow: 0.6s ease;
}


/* ── Reset ──────────────────────────────────────────────────── */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.875rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}


/* ── Custom Text Selection ──────────────────────────────────── */

::selection {
  background: var(--color-text);
  color: var(--color-bg);
}

::-moz-selection {
  background: var(--color-text);
  color: var(--color-bg);
}


/* ── Custom Scrollbar ───────────────────────────────────────── */

::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}


/* ── Skip Link (Accessibility) ──────────────────────────────── */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.75rem;
  z-index: 10000;
  border-radius: 0 0 4px 4px;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}


/* ── Film Grain Overlay ─────────────────────────────────────── */

.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  mix-blend-mode: overlay;
}

.grain-overlay svg {
  display: block;
  width: 100%;
  height: 100%;
}


/* ── Language Toggle ────────────────────────────────────────── */

.lang-toggle {
  position: fixed;
  top: var(--space-md);
  right: var(--space-md);
  z-index: 100;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.7rem;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: border-color var(--transition-base);
}

.lang-toggle:hover {
  border-color: var(--color-text);
}

.lang-option {
  transition: color var(--transition-fast);
}

.lang-active {
  color: var(--color-text);
}

.lang-inactive {
  color: var(--color-text-secondary);
}

.lang-separator {
  color: var(--color-text-secondary);
  margin: 0 0.1em;
}


/* ── General Focus Styles ───────────────────────────────────── */

*:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}


/* ── Section Layout ─────────────────────────────────────────── */

.section {
  padding: var(--space-xl) var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
  border-bottom: 1px solid var(--color-border);
}

.section__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.section__number {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
}

.section__content {
  max-width: 680px;
}

.section__content--wide {
  max-width: 100%;
}


/* ── Scroll Reveal Animations ───────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

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

/* Stagger children inside visible reveals */
.reveal.is-visible .section__header {
  animation: fadeSlideUp 0.7s ease forwards;
}

.reveal.is-visible .section__content {
  animation: fadeSlideUp 0.7s 0.15s ease forwards;
  opacity: 0;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 13vw, 10rem);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
}

.hero__name-line {
  display: block;
  opacity: 0;
  transform: translateY(50px);
  animation: heroNameReveal 1s ease forwards;
}

.hero__name-line:nth-child(2) {
  animation-delay: 0.18s;
}

@keyframes heroNameReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__tagline {
  font-family: var(--font-body);
  font-size: clamp(0.8rem, 1.5vw, 0.95rem);
  color: var(--color-text-secondary);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  opacity: 0;
  animation: fadeIn 0.8s 0.5s ease forwards;
}

.hero__status {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  opacity: 0;
  animation: fadeIn 0.8s 0.7s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* Pulsing availability dot */
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-text);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* Scroll cue at bottom-left */
.scroll-cue {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  animation: fadeIn 0.8s 1.2s ease forwards;
}

.scroll-cue__text {
  font-family: var(--font-body);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  writing-mode: vertical-lr;
}

.scroll-cue__line {
  width: 1px;
  height: 48px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.scroll-cue__line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-text);
  animation: scrollLineDown 2.2s ease-in-out infinite;
}

@keyframes scrollLineDown {
  0%   { top: -100%; }
  100% { top: 100%; }
}


/* ═══════════════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════════════ */

.about__text {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
}


/* ═══════════════════════════════════════════════════════════════
   SELECTED WORKS SECTION
   ═══════════════════════════════════════════════════════════════ */

.works__list {
  display: flex;
  flex-direction: column;
}

/* Individual project row */
.work__item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 0.25rem var(--space-sm);
  padding: var(--space-md) var(--space-sm);
  margin: 0 calc(-1 * var(--space-sm));
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base),
              color var(--transition-base),
              padding var(--transition-base);
  cursor: default;
}

.work__item:first-child {
  border-top: 1px solid var(--color-border);
}

/* Hover inversion */
.work__item:hover {
  background: var(--color-text);
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.work__number {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  padding-top: 0.4em;
  transition: color var(--transition-base);
  grid-row: 1 / -1;
}

.work__item:hover .work__number {
  color: rgba(10, 10, 10, 0.35);
}

.work__info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.work__name {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 400;
  transition: color var(--transition-base);
}

.work__item:hover .work__name {
  color: var(--color-bg);
}

.work__description {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.work__item:hover .work__description {
  color: rgba(10, 10, 10, 0.55);
}

.work__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: 0.15rem;
}

.work__tech,
.work__year {
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
  transition: color var(--transition-base);
}

.work__item:hover .work__tech,
.work__item:hover .work__year {
  color: rgba(10, 10, 10, 0.4);
}

.work__meta-divider {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-secondary);
  flex-shrink: 0;
  transition: background var(--transition-base);
}

.work__item:hover .work__meta-divider {
  background: rgba(10, 10, 10, 0.35);
}

.work__links {
  display: flex;
  gap: var(--space-md);
  margin-top: 0.5rem;
}

.work__link {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-base), border-color var(--transition-fast);
  padding-bottom: 1px;
}

.work__link:hover {
  border-bottom-color: currentColor;
}

.work__item:hover .work__link {
  color: var(--color-bg);
}


/* ═══════════════════════════════════════════════════════════════
   SKILLS SECTION
   ═══════════════════════════════════════════════════════════════ */

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
}

.skills__category h3 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.skills__list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.skills__list li {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  transition: color var(--transition-fast);
}

.skills__list li:hover {
  color: var(--color-text-secondary);
}


/* ═══════════════════════════════════════════════════════════════
   BEYOND CODE SECTION
   ═══════════════════════════════════════════════════════════════ */

.beyond__text {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
}


/* ═══════════════════════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════════════════════ */

.contact__heading {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 5.5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-lg);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-base),
              padding-left var(--transition-base);
}

.contact__link:first-child {
  border-top: 1px solid var(--color-border);
}

.contact__link:hover {
  color: var(--color-text-secondary);
  padding-left: var(--space-sm);
}

.contact__link-label {
  color: var(--color-text-secondary);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  min-width: 90px;
  flex-shrink: 0;
}

.contact__link-arrow {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  transition: transform var(--transition-fast), color var(--transition-base);
}

.contact__link:hover .contact__link-arrow {
  transform: translate(3px, -3px);
  color: var(--color-text);
}


/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */

.footer {
  padding: var(--space-md);
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copyright,
.footer__location {
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Tablet (768px+)
   ═══════════════════════════════════════════════════════════════ */

@media (min-width: 768px) {
  .section {
    padding: var(--space-2xl) var(--space-lg);
  }

  .hero {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .work__item {
    grid-template-columns: 50px 1fr;
  }

  .scroll-cue {
    left: var(--space-lg);
    bottom: var(--space-lg);
  }
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Desktop (1024px+)
   ═══════════════════════════════════════════════════════════════ */

@media (min-width: 1024px) {
  .section__content {
    margin-left: 80px;
  }

  .section__content--wide {
    margin-left: 80px;
  }

  .work__item {
    grid-template-columns: 60px 1fr;
  }

  .contact__links {
    max-width: 600px;
  }
}


/* ═══════════════════════════════════════════════════════════════
   REDUCED MOTION — Accessibility
   ═══════════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__name-line {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .hero__tagline,
  .hero__status,
  .scroll-cue {
    opacity: 1;
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .reveal.is-visible .section__header,
  .reveal.is-visible .section__content {
    animation: none;
    opacity: 1;
  }

  .scroll-cue__line::after {
    animation: none;
  }

  .status-dot {
    animation: none;
  }

  .work__item,
  .contact__link,
  .work__link {
    transition: none;
  }
}