:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --text: #131313;
  --text-soft: #666666;
  --surface: #ffffff;
  --surface-border: #ececec;
  --accent: #222222;
  --panel-shadow: 0 22px 50px rgba(0, 0, 0, 0.08);
  --card-shadow: 0 18px 34px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #070707;
    --text: #f0f0f0;
    --text-soft: #ababab;
    --surface: #111111;
    --surface-border: #1e1e1e;
    --accent: #ffffff;
    --panel-shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
    --card-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
  }
}

:root[data-theme="dark"] {
  --bg: #070707;
  --text: #f0f0f0;
  --text-soft: #ababab;
  --surface: #111111;
  --surface-border: #1e1e1e;
  --accent: #ffffff;
  --panel-shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
  --card-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
}

:root[data-theme="light"] {
  --bg: #f7f7f5;
  --text: #131313;
  --text-soft: #666666;
  --surface: #ffffff;
  --surface-border: #ececec;
  --accent: #222222;
  --panel-shadow: 0 22px 50px rgba(0, 0, 0, 0.08);
  --card-shadow: 0 18px 34px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Sora", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  transition: background 0.3s ease, color 0.3s ease;
  opacity: 0;
  transform: translateY(8px);
  animation: fadeIn 0.7s ease forwards;
}

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

.icon-toggle {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 10;
  width: 52px;
  height: 52px;
  padding: 0;
  display: grid;
  place-items: center;
}

.icon-toggle .icon {
  position: absolute;
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.icon-toggle .icon-moon {
  opacity: 0;
  transform: scale(0.7);
}

:root[data-theme="dark"] .icon-toggle .icon-sun {
  opacity: 0;
  transform: scale(0.7);
}

:root[data-theme="dark"] .icon-toggle .icon-moon {
  opacity: 1;
  transform: scale(1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .icon-toggle .icon-sun {
    opacity: 0;
    transform: scale(0.7);
  }

  :root:not([data-theme]) .icon-toggle .icon-moon {
    opacity: 1;
    transform: scale(1);
  }
}

.layout {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: clamp(1.2rem, 3.8vw, 2.6rem);
}

.content {
  width: min(760px, 100%);
}

.theme-toggle {
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 0.52rem 0.82rem;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 7px 16px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 25%, var(--surface-border));
}

.hero {
  text-align: center;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0.5rem 0 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 2.7vw, 1.15rem);
}

.email-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  perspective: 1100px;
}

.email-card {
  position: relative;
  min-height: 132px;
  border-radius: 20px;
  border: 1px solid color-mix(in oklab, var(--text-soft) 24%, transparent);
  background: var(--surface);
  box-shadow: var(--card-shadow);
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.45rem;
  text-align: center;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg) rotateY(0deg) translateZ(0);
  transition: transform 0.16s linear, box-shadow 0.2s ease;
  will-change: transform;
}

.email-card::before {
  content: none;
}

.email-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, white 55%, transparent);
  pointer-events: none;
}

.email-card:hover {
  box-shadow: 0 22px 38px rgba(0, 0, 0, 0.16);
}

.label {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.email-link {
  margin-top: 0;
  width: 100%;
  max-width: 100%;
  text-decoration: none;
  color: var(--text);
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere;
  word-break: break-word;
  transition: color 0.2s ease;
}

.email-link:hover {
  color: color-mix(in oklab, var(--accent) 80%, var(--text));
}

.email-text {
  margin-top: 0;
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-soft);
  width: 100%;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.email-link:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--accent) 35%, white 20%);
  outline-offset: 2px;
}

@media (max-width: 620px) {
  .icon-toggle {
    top: 0.8rem;
    left: 0.8rem;
    width: 48px;
    height: 48px;
  }

  .layout {
    align-items: flex-start;
    padding: 4.4rem 0.9rem 1.2rem;
  }

  .hero {
    margin-bottom: 1.1rem;
  }

  .hero h1 {
    font-size: clamp(1.75rem, 9vw, 2.3rem);
  }

  .subtitle {
    font-size: 0.96rem;
  }

  .email-grid {
    gap: 0.8rem;
  }

  .email-card {
    min-height: 110px;
    padding: 0.9rem 0.9rem;
    border-radius: 16px;
  }

  .email-link,
  .email-text {
    font-size: 0.95rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}