/* ========================================
   Custom Properties
   ======================================== */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --text-primary: #f5f0eb;
  --text-secondary: #8a8580;
  --text-accent: #c8b8a8;
  --border: rgba(245, 240, 235, 0.1);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f5f0eb;
  --bg-secondary: #e8e0d8;
  --text-primary: #0a0a0a;
  --text-secondary: #4a4540;
  --text-accent: #6b5d52;
  --border: rgba(10, 10, 10, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.5s ease, color 0.5s ease;
}

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

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

/* ========================================
   Grain Overlay
   ======================================== */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

[data-theme="light"] body::after {
  opacity: 0.02;
  filter: invert(1);
}

/* ========================================
   Layout
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5vw;
}

/* ========================================
   Loading Screen
   ======================================== */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.5s ease;
}

.loader-counter {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 300;
  color: var(--text-primary);
}

.loader-number {
  display: inline-block;
}

/* ========================================
   Custom Cursor
   ======================================== */
.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--text-primary);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 10000;
  opacity: 0;
  transition: transform 0.2s ease, background 0.2s ease;
  transform: translate(-50%, -50%);
}

.cursor-dot.visible {
  opacity: 1;
}

.cursor-dot.hovering {
  transform: translate(-50%, -50%) scale(4);
  background: var(--text-accent);
  mix-blend-mode: difference;
}

@media (pointer: coarse) {
  .cursor-dot {
    display: none;
  }
}

/* ========================================
   Hero Section — Swiss Typography
   ======================================== */
#hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
}

.hero-container {
  width: 100%;
  max-width: none;
  padding: 0 8vw;
}

.hero-text {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 14rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.hero-line {
  display: block;
  position: relative;
}

.hero-line--01 {
  padding-left: 0;
  padding-top: 0.1em;
  font-weight: 400;
  color: var(--text-secondary);
}

.hero-line--02 {
  padding-left: 8vw;
  font-weight: 400;
  font-style: italic;
  color: var(--text-secondary);
}

.hero-line--03 {
  padding-left: 2vw;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.15em;
}

.hero-line--04 {
  padding-left: 10vw;
  font-weight: 600;
  color: var(--text-primary);
}

.hero-line::before {
  content: attr(data-line);
  position: absolute;
  left: -3vw;
  top: 0.3em;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  opacity: 0.3;
}

.hero-word {
  display: inline-block;
}

#cries-word {
  transition: font-family 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Corner Labels */
.hero-label {
  position: absolute;
  font-family: var(--font-body);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  line-height: 1.6;
  z-index: 10;
}


.hero-label--bottom-left {
  bottom: 5rem;
  left: 5vw;
}

.label-line {
  display: block;
  opacity: 0;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
}

.scroll-label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
}

.scroll-arrow {
  color: var(--text-secondary);
}

/* ========================================
   About Section
   ======================================== */
#about {
  padding: 20vh 0 15vh;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
}

.section-number {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  opacity: 0.4;
  margin-bottom: 2rem;
}

.label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  display: inline-block;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.about-greeting {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.about-text {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.01em;
}

.about-word {
  display: inline-block;
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  align-items: center;
}

.stat-tag {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 2px;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.stat-tag:hover {
  color: var(--text-accent);
  border-color: rgba(200, 184, 168, 0.3);
}

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

.stat-label--location {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  color: var(--text-accent);
}

/* ========================================
   Blog Section
   ======================================== */
#blog {
  padding: 20vh 0 15vh;
}

.blog-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.blog-item {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

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

.blog-item:hover {
  background: rgba(128, 128, 128, 0.05);
}

.blog-item:hover .blog-item-title {
  color: var(--text-primary);
}

.blog-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  min-width: 2rem;
}

.blog-item-content {
  flex: 1;
}

.blog-item-title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-accent);
  line-height: 1.3;
  transition: color 0.3s ease;
  margin-bottom: 0.3rem;
}

.blog-item-meta {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.blog-item-meta .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.blog-item:hover .blog-item-meta .arrow {
  transform: translateX(4px);
}

.blog-item--fallback {
  cursor: default;
}

.blog-item--fallback:hover {
  background: transparent;
}

.fallback-inline-link {
  color: var(--text-accent);
  border-bottom: 1px solid var(--border);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.fallback-inline-link:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

/* ========================================
   Lab Section
   ======================================== */
#lab {
  padding: 20vh 0 15vh;
}

.lab-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.lab-description {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2.5rem;
  letter-spacing: 0.01em;
}

.lab-link {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  width: fit-content;
  transition: color 0.3s ease;
  padding: 0.3rem 0;
}

.lab-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.lab-link:hover {
  color: var(--text-primary);
}

.lab-link:hover::after {
  width: 100%;
}

.lab-link .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.lab-link:hover .arrow {
  transform: translateX(4px);
}

/* ========================================
   Links Section
   ======================================== */
#links {
  padding: 20vh 0 10vh;
}

.links-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.social-link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-accent);
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  width: fit-content;
  transition: color 0.3s ease;
  padding: 0.3rem 0;
}

.social-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.social-link:hover {
  color: var(--text-primary);
}

.social-link:hover::after {
  width: 100%;
}

button.social-link {
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
}

.copy-feedback {
  position: absolute;
  right: -5rem;
  top: 50%;
  transform: translateY(-50%) translateX(-8px);
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}

.copy-feedback.is-visible {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ========================================
   Footer
   ======================================== */
footer {
  padding: 5rem 0 3rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.footer-text {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.back-to-top {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.back-to-top:hover {
  color: var(--text-primary);
}

/* ========================================
   Theme Toggle
   ======================================== */
.theme-toggle {
  position: fixed;
  top: 2rem;
  right: 5vw;
  z-index: 9999;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: color 0.3s ease, border-color 0.3s ease;
}

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

/* ========================================
   Jakarta Clock
   ======================================== */
.jkt-clock {
  position: fixed;
  bottom: 2rem;
  right: 5vw;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-transform: uppercase;
  transition: color 0.5s ease;
}


/* ========================================
   Blog Item Tags (Word Cloud on Hover)
   ======================================== */
.blog-item-tags {
  position: absolute;
  top: 50%;
  right: 1.5rem;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 3rem);
  font-weight: 300;
  color: var(--text-accent);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: opacity 0.4s ease;
}

.blog-item:hover .blog-item-tags {
  opacity: 0.08;
}

/* ========================================
   Social Icons
   ======================================== */
.social-icon {
  width: 28px;
  height: 28px;
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  color: var(--text-accent);
  flex-shrink: 0;
}

.social-link:hover .social-icon {
  opacity: 1;
  transform: translateX(0);
}

/* ========================================
   Responsive — Tablet
   ======================================== */
@media (max-width: 768px) {
  .hero-container {
    padding: 0 5vw;
  }

  .hero-text {
    font-size: clamp(2.5rem, 13vw, 5rem);
  }

  .hero-line--01 { padding-left: 0; }
  .hero-line--02 { padding-left: 5vw; }
  .hero-line--03 { padding-left: 1vw; }
  .hero-line--04 { padding-left: 6vw; }

  .hero-line::before {
    display: none;
  }

  .hero-label--top-left {
    top: 1.5rem;
    font-size: 0.6rem;
  }

  .hero-label--bottom-left {
    bottom: 4rem;
    font-size: 0.6rem;
  }

  .scroll-indicator {
    bottom: 2rem;
    right: 5vw;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image {
    max-width: 300px;
    margin: 0 auto;
  }

  .stats-row {
    gap: 0.75rem;
  }

  .blog-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .lab-link {
    font-size: clamp(1.4rem, 6vw, 2rem);
  }

  .social-link {
    font-size: clamp(1.8rem, 8vw, 3rem);
  }

  .social-icon {
    width: 22px;
    height: 22px;
  }

  .theme-toggle {
    top: 1.5rem;
    right: 5vw;
  }

  .jkt-clock {
    bottom: 1.5rem;
    right: 5vw;
  }
}

/* ========================================
   Responsive — Small Mobile
   ======================================== */
@media (max-width: 480px) {
  .hero-text {
    font-size: clamp(2rem, 14vw, 4rem);
  }

  .hero-label {
    font-size: 0.55rem;
  }

  .about-text {
    font-size: 1rem;
  }

  .blog-title {
    font-size: 2rem;
  }
}

/* ========================================
   Reduced Motion
   ======================================== */
/* ========================================
   Screen Reader Only
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sr-only-focusable:focus {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 99999;
  width: auto;
  height: auto;
  padding: 0.75rem 1.5rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  border: 1px solid var(--text-primary);
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .cursor-dot {
    display: none;
  }

  .scroll-indicator {
    opacity: 1 !important;
  }

  .hero-word,
  .label-line {
    opacity: 1 !important;
  }
}