/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Colors */
  --bg: #000000;
  --bg-alt: #0a0a0a;
  --surface: #111111;
  --surface-2: #1a1a1a;
  --border: #333333;
  --text: #ffffff;
  --text-dim: #a0a0a0;
  --accent: #ccff00;
  --accent-dim: rgba(204, 255, 0, 0.12);
  --error: #ff3333;

  /* Typography */
  --font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 10rem;

  /* Radii (Brutalist style) */
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;

  /* Transitions */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.5s;

  /* Layout */
  --max-width: 1100px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

/* ============================================================
   UTILITY — ACCENT DOT
   ============================================================ */
.accent {
  color: var(--accent);
}

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* stagger children */
.fade-in:nth-child(2) {
  transition-delay: 0.08s;
}

.fade-in:nth-child(3) {
  transition-delay: 0.16s;
}

.fade-in:nth-child(4) {
  transition-delay: 0.24s;
}

.fade-in:nth-child(5) {
  transition-delay: 0.32s;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.nav__logo {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text);
  letter-spacing: 1px;
}

.nav__links {
  list-style: none;
  display: flex;
  gap: var(--space-md);
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color 0.3s var(--ease);
  position: relative;
  padding: 0.2rem 0;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

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

.nav__links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  overflow: hidden;
  background: var(--bg);
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: left;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
}

.hero__tech-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-xs);
  width: fit-content;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.hero__title {
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -4px;
  color: var(--text);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.hero__tagline {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3vw, 1.4rem);
  font-weight: 700;
  color: var(--text);
  margin-top: var(--space-sm);
  letter-spacing: 0px;
  text-transform: uppercase;
}

.hero__sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin-top: var(--space-md);
  max-width: 500px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero__cta {
  display: inline-block;
  margin-top: var(--space-lg);
  padding: 1rem 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--bg);
  background: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
  border: 1px solid var(--accent);
}

.hero__cta:hover {
  background: transparent;
  color: var(--accent);
}

/* Background grid */
.tech-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(204, 255, 0, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(204, 255, 0, 0.12) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: 1;
  pointer-events: none;
}

/* Tech Corners */
.tech-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  z-index: 2;
  pointer-events: none;
}

.tech-corner::before,
.tech-corner::after {
  content: '';
  position: absolute;
  background: var(--accent);
}

.tech-corner.top-left {
  top: 100px;
  left: 40px;
}

.tech-corner.top-left::before {
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
}

.tech-corner.top-left::after {
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
}

.tech-corner.bottom-right {
  bottom: 40px;
  right: 40px;
}

.tech-corner.bottom-right::before {
  bottom: 0;
  right: 0;
  width: 100%;
  height: 2px;
}

.tech-corner.bottom-right::after {
  bottom: 0;
  right: 0;
  width: 2px;
  height: 100%;
}

/* ============================================================
   SECTIONS (SHARED)
   ============================================================ */
.section {
  padding: var(--space-xl) var(--space-md);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  border-bottom: 2px solid var(--border);
  padding-bottom: var(--space-xs);
  display: inline-block;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--bg);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.about__bio p {
  font-size: 1.05rem;
  color: var(--text-dim);
  line-height: 1.85;
  max-width: 580px;
}

.about__bio p+p {
  margin-top: var(--space-sm);
}

.about__highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
  font-family: var(--font-mono);
}

.highlight-card:hover {
  border-color: var(--accent);
  background: rgba(204, 255, 0, 0.05);
}

.highlight-card__number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -1px;
  min-width: 48px;
}

.highlight-card__label {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Tech tags section */
.about__techs-section {
  margin-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.about__techs-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.about__techs-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.about__techs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tech-tag {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.tech-tag:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.tech-tag--sm {
  padding: 0.25rem 0.7rem;
  font-size: 0.72rem;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects {
  background: var(--bg-alt);
}

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

.project-item {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: opacity 0.3s var(--ease);
}

.project-item:nth-child(even) {
  flex-direction: row-reverse;
}

.project-item__content {
  flex: 1 1 50%;
}

.project-item__image {
  flex: 1 1 50%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--surface-2);
  position: relative;
}

.project-item__image::before,
.project-item__image::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--accent);
  z-index: 3;
  pointer-events: none;
}

.project-item__image::before {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}

.project-item__image::after {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
}

.project-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease);
}

.project-item:hover .project-item__image img {
  transform: scale(1.04);
}

.project-item__image--placeholder {
  position: relative;
  background: radial-gradient(circle at center, rgba(184, 255, 87, 0.15) 0%, var(--surface-2) 70%);
}

.placeholder-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184, 255, 87, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 255, 87, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.5;
  transition: transform 0.6s var(--ease);
}

.project-item:hover .placeholder-pattern {
  transform: scale(1.04);
}

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

.projects__list:hover .project-item:not(:hover) {
  opacity: 0.4;
}

.project-item__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
}

.project-item__header h3 {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
}

.project-item:hover .project-item__header h3 {
  color: var(--accent);
}

.project-item__icon {
  font-size: 1.2rem;
  color: var(--accent);
}

.project-item__arrow {
  font-size: 1.2rem;
  color: var(--text-dim);
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
}

.project-item:hover .project-item__header h3 {
  transform: translateX(8px);
}

.project-item:hover .project-item__arrow {
  transform: translate(4px, -4px);
  color: var(--accent);
}

.project-item__desc {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 600px;
  line-height: 1.5;
  margin-bottom: var(--space-sm);
  transition: transform 0.3s var(--ease);
}

.project-item:hover .project-item__desc {
  transform: translateX(8px);
}

.project-item__meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  transition: transform 0.3s var(--ease);
}

.project-item:hover .project-item__meta {
  transform: translateX(8px);
}

.meta-dot {
  color: var(--border);
  font-size: 0.6rem;
}

.project-item__github {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 4px;
  transition: color 0.3s var(--ease), text-decoration-color 0.3s var(--ease);
}

.project-item__github:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  text-align: center;
  background: var(--bg);
}

.contact__text {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto var(--space-md);
  line-height: 1.8;
}

.contact__btn {
  display: inline-block;
  padding: 1rem 2.4rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--bg);
  background: var(--accent);
  border: 1px solid var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
  margin-bottom: var(--space-md);
}

.contact__btn:hover {
  background: transparent;
  color: var(--accent);
}

.contact__fallback {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  user-select: all;
  /* Allows easy copying */
}

.contact__fallback strong {
  color: var(--text);
  font-weight: 500;
  user-select: all;
}

.contact__socials {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  color: var(--text-dim);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.social-link:hover {
  color: var(--accent);
  transform: translateY(-2px);
}

/* ============================================================
   PROJECT DETAILS
   ============================================================ */
.project-detail {
  padding-top: calc(var(--space-xl) + 60px);
  padding-bottom: var(--space-xl);
}

.project-detail__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-dim);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-lg);
  transition: color 0.3s var(--ease);
}

.project-detail__back:hover {
  color: var(--accent);
}

.project-detail__header {
  margin-bottom: var(--space-xl);
}

.project-detail__title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--text);
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.project-detail__subtitle {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
}

.project-detail__content {
  display: grid;
  gap: var(--space-lg);
  color: var(--text-dim);
  line-height: 1.8;
  font-size: 1.05rem;
}

.project-detail__content h2,
.project-detail__content h3 {
  color: var(--text);
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.project-detail__content ul {
  margin-left: 1.5rem;
  padding-left: 0;
}

.project-detail__content li {
  margin-bottom: var(--space-xs);
}

/* Color Palette Display */
.color-palette {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.color-swatch {
  display: flex;
  flex-direction: column;
  width: 120px;
}

.color-swatch__box {
  width: 100%;
  height: 80px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: var(--space-xs);
}

.color-swatch__info {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text);
}

.color-swatch__pantone {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-md);
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav__links {
    gap: var(--space-sm);
  }

  .nav__links a {
    font-size: 0.78rem;
  }

  .project-item,
  .project-item:nth-child(even) {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg) 0;
  }

  .project-item__image {
    width: 100%;
  }

  .hero {
    padding: var(--space-xl) var(--space-sm) var(--space-lg);
  }

  .hero__title {
    font-size: clamp(3rem, 15vw, 5rem);
    letter-spacing: -2px;
  }

  .hero__tech-meta {
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: none;
    border-left: 2px solid var(--accent);
    padding-left: var(--space-xs);
    padding-bottom: 0;
  }

  .tech-corner.top-left {
    top: 80px;
    left: 15px;
    width: 25px;
    height: 25px;
  }

  .tech-corner.bottom-right {
    bottom: 30px;
    right: 15px;
    width: 25px;
    height: 25px;
  }

  .section {
    padding: var(--space-lg) var(--space-sm);
  }

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

  .about__highlights {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .highlight-card {
    flex: 1 1 140px;
  }
}

@media (max-width: 480px) {
  .nav {
    padding: var(--space-xs) var(--space-sm);
  }
}