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

:root {
  --red: #E03C31;
  --bg: #FAFAFA;
  --fg: #1A1A1A;
  --card-bg: #FAFAFA;
  --card-border: #1A1A1A;
  --dot: rgba(26, 26, 26, 0.1);
  --gray: #888;
  --shape-blue: #00509E;
  --shape-yellow: #F7D002;
  --shape-black: #1A1A1A;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F0F11;
    --fg: #D4D4D8;
    --card-bg: #18181B;
    --card-border: #27272A;
    --dot: rgba(39, 39, 42, 0.2);
    --gray: #7C7C82;
    --shape-blue: #729DCC;
    --shape-yellow: #D9B83D;
    --shape-black: #D4D4D8;
  }
}

:root[data-theme="light"] {
  --bg: #FAFAFA;
  --fg: #1A1A1A;
  --card-bg: #FAFAFA;
  --card-border: #1A1A1A;
  --dot: rgba(26, 26, 26, 0.1);
  --gray: #888;
  --shape-blue: #00509E;
  --shape-yellow: #F7D002;
  --shape-black: #1A1A1A;
}

:root[data-theme="dark"] {
  --bg: #0F0F11;
  --fg: #D4D4D8;
  --card-bg: #18181B;
  --card-border: #27272A;
  --dot: rgba(39, 39, 42, 0.2);
  --gray: #7C7C82;
  --shape-blue: #729DCC;
  --shape-yellow: #D9B83D;
  --shape-black: #D4D4D8;
}

body {
  font-family: 'Futura', 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.3s, color 0.3s;
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1px);
  background-size: 24px 24px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 48px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.bar {
  display: flex;
  height: 6px;
  width: 100%;
  margin-bottom: 64px;
}
.bar span { flex: 1; }
.bar span:nth-child(1) { background: var(--red); }
.bar span:nth-child(2) { background: var(--shape-yellow); }
.bar span:nth-child(3) { background: var(--shape-blue); }
.bar span:nth-child(4) { background: var(--shape-black); }
.bar span:nth-child(5) { background: var(--red); }

.title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.title .accent { color: var(--red); }

.subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 16px;
}

.tagline {
  margin-top: 24px;
  font-size: 1.05rem;
  max-width: 320px;
  line-height: 1.6;
}

.shapes {
  position: relative;
  width: 100%;
  height: 320px;
}

.shape-wrap { position: absolute; cursor: grab; touch-action: manipulation; }
.shape-wrap:active { cursor: grabbing; }

.shape--circle-wrap {
  top: 0;
  right: 20px;
  animation: figure8 8s ease-in-out infinite;
  animation-delay: 0s;
}

.shape--circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--shape-blue);
  transition: background 0.3s, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.shape--circle-wrap:hover .shape--circle { transform: scale(1.15); }

.shape--square-wrap {
  bottom: 40px;
  left: 0;
  animation: diagonal 7s ease-in-out infinite;
  animation-delay: 0.6s;
}

.shape--square {
  width: 80px;
  height: 80px;
  background: var(--red);
  transition: background 0.3s, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.shape--square-wrap:hover .shape--square { transform: rotate(90deg) scale(1.1); }

.shape--line-h-wrap {
  bottom: 0;
  right: 40px;
  animation: slide-wobble 7s ease-in-out infinite;
  animation-delay: 1.2s;
}

.shape--line-h {
  width: 180px;
  height: 8px;
  background: var(--shape-yellow);
  transition: background 0.3s, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.shape--line-h-wrap:hover .shape--line-h { transform: scaleX(1.4); }

.shape--line-v-wrap {
  top: 20px;
  right: 0;
  animation: glide-wobble 7.5s ease-in-out infinite;
  animation-delay: 0.3s;
}

.shape--line-v {
  width: 8px;
  height: 160px;
  background: var(--shape-black);
  transition: background 0.3s, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.shape--line-v-wrap:hover .shape--line-v { transform: scaleY(1.25); }

.shape--dot-wrap {
  bottom: 100px;
  right: 140px;
  animation: orbit 7s ease-in-out infinite;
  animation-delay: 0.9s;
}

.shape--dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--shape-black);
  transition: background 0.3s, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.shape--dot-wrap:hover .shape--dot { transform: scale(2); }

@keyframes figure8 {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(14px, -14px); }
  40% { transform: translate(0, -22px); }
  50% { transform: translate(-8px, -18px); }
  60% { transform: translate(0, -22px); }
  80% { transform: translate(-14px, -14px); }
}

@keyframes diagonal {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  30% { transform: translate(16px, -10px) rotate(3deg); }
  70% { transform: translate(-8px, 8px) rotate(-2deg); }
}

@keyframes slide-wobble {
  0%, 100% { transform: translate(0, 0) scaleX(1); }
  25% { transform: translate(-14px, 4px) scaleX(0.85); }
  50% { transform: translate(6px, -4px) scaleX(1); }
  75% { transform: translate(18px, 2px) scaleX(0.9); }
}

@keyframes glide-wobble {
  0%, 100% { transform: translate(0, 0) scaleY(1); }
  25% { transform: translate(4px, -14px) scaleY(0.85); }
  50% { transform: translate(-2px, 6px) scaleY(1); }
  75% { transform: translate(-5px, 18px) scaleY(0.9); }
}

@keyframes orbit {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
  25% { transform: translate(14px, -12px) scale(1.2); opacity: 0.8; }
  50% { transform: translate(0, -22px) scale(0.9); opacity: 1; }
  75% { transform: translate(-14px, -12px) scale(1.1); opacity: 0.7; }
}

.links {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.links a {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg);
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s;
}

.links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.links a:hover { color: var(--red); }
.links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 2px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray);
  transition: border-color 0.3s;
}

.body {
  display: flex;
  gap: 24px;
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--card-border);
  align-items: start;
}

.body__shape {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  background: var(--shape-yellow);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  min-height: 100px;
}

.body__content {
  max-width: 480px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--fg);
}

.body__content p {
  margin: 0 0 12px;
}

.body__content strong {
  font-weight: 600;
}

.body__signature {
  margin-top: 16px;
  font-style: italic;
  color: var(--red);
  font-weight: 600;
}

.reset-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--fg);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
  z-index: 100;
  opacity: 0.4;
  line-height: 1;
}
.reset-btn:hover { opacity: 1; }

@media (min-width: 769px) {
  .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 64px;
    align-items: start;
  }

  .bar {
    grid-column: 1 / -1;
  }

  .hero {
    grid-column: 1;
  }

  .body {
    grid-column: 1;
  }

  .shapes {
    grid-column: 2;
    grid-row: 2 / 4;
    align-self: start;
  }

  .footer {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .container { padding: 20px 16px; }
  .bar { height: 4px; margin-bottom: 32px; }
  .hero { display: block; }
  .title { line-height: 1; }
  .tagline { max-width: none; }
  .shapes { height: 350px; margin-top: 48px; }
  .shape--circle-wrap { top: 15px; right: 30px; }
  .shape--circle { width: 100px; height: 100px; }
  .shape--square-wrap { bottom: 50px; left: 20px; }
  .shape--square { width: 60px; height: 60px; }
  .shape--line-h { width: 120px; height: 7px; }
  .shape--line-h-wrap { bottom: 10px; right: 30px; }
  .shape--line-v { height: 100px; width: 7px; }
  .shape--line-v-wrap { top: 60px; left: 80px; right: auto; }
  .shape--dot-wrap { top: 160px; right: 100px; bottom: auto; }
  .shape--dot { width: 22px; height: 22px; }
  .links { gap: 16px; margin-top: 32px; }
  .links a { font-size: 0.78rem; }
  .body { margin-top: 48px; padding-top: 20px; gap: 16px; }
  .body__shape { min-height: 60px; }
  .body__content { max-width: none; }
  .footer { flex-direction: column; gap: 4px; text-align: left; }
  .reset-btn { bottom: 16px; right: 16px; width: 36px; height: 36px; font-size: 1.3rem; }
}

@media (max-width: 400px) {
  .container { padding: 16px 12px; }
  .bar { margin-bottom: 24px; }
  .shapes { height: 270px; margin-top: 40px; }
  .shape--circle { width: 75px; height: 75px; }
  .shape--square { width: 46px; height: 46px; }
  .shape--line-h { width: 90px; }
  .shape--line-v { height: 70px; }
  .shape--dot { width: 16px; height: 16px; }
  .shape--dot-wrap { top: 130px; right: 60px; bottom: auto; }
  .body { margin-top: 32px; }
}