@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');

:root {
  --font-display: 'Roboto', 'Avenir Next', 'Segoe UI', sans-serif;
  --font-body: 'Roboto', 'SF Pro Text', 'Segoe UI', sans-serif;
  --display-lg: clamp(2.5rem, 5vw, 3.5rem);
  --headline-lg: clamp(1.75rem, 3vw, 2.5rem);
  --title-md: 1.125rem;
  --body-md: 1rem;
  --label-md: 0.875rem;

  --lh-tight: 1.1;
  --lh-normal: 1.45;

  --surface: #faf8ff;
  --secondary-container: #e4e0d0;
  --surface-container-low: #f6f3fb;
  --surface-container-high: #e9e4f2;

  --on-surface: #0f1a38;
  --on-surface-muted: #3a4665;
  --surface-inverse: #0f1a38;
  --on-surface-inverse: #faf8ff;
  --on-surface-inverse-muted: #c8cfe0;

  --outline-variant: #98a0b8;
  --tertiary: #0090b0;
  --tertiary-fixed-dim: #4cd6ff;
  --tertiary-container: #001f28;
  --on-tertiary-fixed: #f2fbff;

  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;

  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;

  --ghost-border: 1px solid color-mix(in srgb, var(--outline-variant) 10%, transparent);
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--body-md);
  line-height: var(--lh-normal);
  color: var(--on-surface);
  background:
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--tertiary-fixed-dim) 8%, transparent), transparent 42%),
    radial-gradient(circle at 88% 78%, color-mix(in srgb, var(--secondary-container) 45%, transparent), transparent 50%),
    var(--surface);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1 0 auto;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.015em;
  color: var(--on-surface);
}

h1 {
  font-size: var(--display-lg);
  font-weight: 700;
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--headline-lg);
  font-weight: 300;
}

h3,
h4,
h5,
h6 {
  font-size: var(--title-md);
  font-weight: 300;
}

h3 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-3);
}

.footer-heading {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.2;
}

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--on-surface-muted);
}

.surface-inverse {
  background: var(--surface-inverse);
}

.surface-warm {
  background: var(--secondary-container);
}

.surface-low {
  background: var(--surface-container-low);
}

.surface-high {
  background: var(--surface-container-high);
}

.on-surface-inverse {
  color: var(--on-surface-inverse);
}

.on-surface-inverse-muted {
  color: var(--on-surface-inverse-muted);
}

button,
.btn {
  border: 0;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--label-md);
  line-height: 1;
  padding: 0.72rem 1rem;
  cursor: pointer;
  transition: transform 140ms ease, background-color 180ms ease, color 180ms ease;
}

button:focus-visible,
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--tertiary) 60%, white);
  outline-offset: 2px;
}

.btn-primary {
  color: var(--on-tertiary-fixed);
  background: linear-gradient(
      160deg,
      color-mix(in srgb, var(--tertiary-fixed-dim) 20%, transparent),
      transparent 55%
    ),
    var(--tertiary-container);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-inverse {
  color: var(--surface-inverse);
  background: var(--secondary-container);
}

.btn-inverse:hover {
  background: color-mix(in srgb, var(--secondary-container) 86%, white);
  transform: translateY(-1px);
}

input,
textarea {
  width: 100%;
  border: var(--ghost-border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--on-surface);
  font: inherit;
  padding: 0.72rem 0.85rem;
}

input:focus,
textarea:focus {
  border: 1px solid var(--tertiary);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

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

.reveal {
  animation: rise-in 460ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
}

@media (max-width: 768px) {
  h1 {
    margin-bottom: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}