@layer reset, tokens, base, layout, components, utilities;

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body,
  h1,
  h2,
  h3,
  p,
  dl,
  dd {
    margin: 0;
  }

  button,
  input,
  textarea,
  select {
    font: inherit;
  }

  a {
    color: inherit;
  }
}

@layer tokens {
  :root {
    --color-ink: #211713;
    --color-muted: #6d5d52;
    --color-surface: #fff8e8;
    --color-surface-strong: #fff0bf;
    --color-card: #fffdf7;
    --color-accent: #f7c948;
    --color-accent-strong: #f59e0b;
    --color-danger: #d93d04;
    --color-night: #16110e;
    --color-wing: rgba(255, 255, 255, 0.72);
    --shadow-soft: 0 20px 60px rgba(68, 47, 22, 0.16);
    --shadow-hard: 8px 8px 0 rgba(33, 23, 19, 0.16);
    --radius-sm: 0.65rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --container: 1180px;
    --space-page: clamp(1rem, 4vw, 3rem);
    --font-main: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --step--1: clamp(0.86rem, 0.82rem + 0.18vw, 0.96rem);
    --step-0: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --step-1: clamp(1.22rem, 1.09rem + 0.65vw, 1.55rem);
    --step-2: clamp(1.55rem, 1.32rem + 1.14vw, 2.15rem);
    --step-3: clamp(2.1rem, 1.58rem + 2.6vw, 3.85rem);
    --step-4: clamp(3rem, 2.1rem + 4.5vw, 6rem);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  }
}

@layer base {
  body {
    min-height: 100vh;
    color: var(--color-ink);
    background:
      radial-gradient(circle at 14% 12%, rgba(247, 201, 72, 0.28), transparent 28rem),
      radial-gradient(circle at 88% 18%, rgba(245, 158, 11, 0.16), transparent 26rem),
      linear-gradient(135deg, #fffaf0 0%, var(--color-surface) 42%, #ffeab0 100%);
    font-family: var(--font-main);
    font-size: var(--step-0);
    line-height: 1.6;
    overflow-x: hidden;
  }

  body.is-swat-mode {
    cursor: crosshair;
  }

  h1,
  h2,
  h3 {
    line-height: 0.96;
    letter-spacing: -0.055em;
  }

  h1 {
    max-width: 12ch;
    font-size: var(--step-4);
  }

  h2 {
    max-width: 13ch;
    font-size: var(--step-3);
  }

  h3 {
    font-size: var(--step-1);
  }

  p {
    color: var(--color-muted);
  }

  :focus-visible {
    outline: 3px solid var(--color-danger);
    outline-offset: 4px;
  }

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

/*
 * ███╗   ██╗      ██████╗  █████╗ ██╗   ██╗██╗
 * ████╗  ██║      ██╔══██╗██╔══██╗██║   ██║██║
 * ██╔██╗ ██║█████╗██████╔╝███████║██║   ██║██║
 * ██║╚██╗██║╚════╝██╔═══╝ ██╔══██║██║   ██║██║
 * ██║ ╚████║      ██║     ██║  ██║╚██████╔╝███████╗
 * ╚═╝  ╚═══╝      ╚═╝     ╚═╝  ╚═╝ ╚═════╝ ╚══════╝
 * author: n-paul | Havířov, CZ
 */

@layer layout {
  .skip-link {
    position: fixed;
    inset-block-start: 1rem;
    inset-inline-start: 1rem;
    z-index: 30;
    translate: 0 -160%;
    border-radius: 999px;
    padding: 0.7rem 1rem;
    color: white;
    background: var(--color-night);
    text-decoration: none;
    transition: translate 180ms var(--ease-out);
  }

  .skip-link:focus {
    translate: 0 0;
  }

  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 20;
    padding: 0.8rem var(--space-page);
    transition: background 180ms var(--ease-out), box-shadow 180ms var(--ease-out);
  }

  .site-header.is-glassy {
    background: rgba(255, 248, 232, 0.82);
    box-shadow: 0 10px 30px rgba(33, 23, 19, 0.08);
    backdrop-filter: blur(16px);
  }

  .nav-shell,
  .section,
  .site-footer {
    width: min(100%, var(--container));
    margin-inline: auto;
  }

  .nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .page {
    display: grid;
    gap: clamp(4rem, 10vw, 8rem);
    padding-inline: var(--space-page);
    padding-block: clamp(2rem, 4vw, 4rem) clamp(4rem, 8vw, 7rem);
  }

  .section {
    position: relative;
  }

  .hero {
    display: grid;
    align-items: center;
    gap: clamp(2rem, 6vw, 5rem);
    min-height: calc(100svh - 8rem);
  }

  .hero__copy {
    display: grid;
    gap: 1.3rem;
  }

  .hero__lead {
    max-width: 58ch;
    font-size: var(--step-1);
  }

  .hero__actions,
  .game-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .section-heading {
    display: grid;
    gap: 0.8rem;
    margin-block-end: 1.5rem;
  }

  .section-heading p {
    max-width: 68ch;
  }

  .joke-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .joke-grid .section-heading {
    grid-column: 1 / -1;
  }

  .lab {
    display: grid;
    align-items: center;
    gap: 1.25rem;
  }

  .site-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-top: 1px solid rgba(33, 23, 19, 0.14);
    padding: 2rem var(--space-page) 3rem;
  }

  @media (min-width: 768px) {
    .hero,
    .lab {
      grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.95fr);
    }

    .joke-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
}

@layer components {
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-ink);
    text-decoration: none;
  }

  .brand__mark {
    width: 3.2rem;
    height: 3.2rem;
    color: var(--color-accent);
    filter: drop-shadow(4px 6px 0 rgba(33, 23, 19, 0.16));
  }

  .brand__halo {
    stroke: var(--color-ink);
    stroke-width: 4;
  }

  .brand__antenna,
  .brand__smile {
    fill: none;
    stroke: var(--color-ink);
    stroke-linecap: round;
    stroke-width: 5;
  }

  .brand__wing {
    fill: rgba(255, 255, 255, 0.62);
    stroke: rgba(33, 23, 19, 0.45);
    stroke-width: 2;
  }

  .brand__body {
    fill: var(--color-ink);
  }

  .brand__eye {
    fill: #fff8e1;
  }

  .brand__pupil {
    fill: var(--color-danger);
  }

  .brand__text {
    display: grid;
    line-height: 0.9;
    letter-spacing: -0.04em;
  }

  .brand__text strong {
    font-size: 1.1rem;
  }

  .brand__text small {
    color: var(--color-muted);
    font-weight: 800;
  }

  .nav-toggle,
  .button {
    border: 2px solid var(--color-ink);
    border-radius: 999px;
    background: var(--color-card);
    color: var(--color-ink);
    cursor: pointer;
    font-weight: 900;
    text-decoration: none;
    box-shadow: 4px 4px 0 rgba(33, 23, 19, 0.18);
    transition: transform 180ms var(--ease-out), box-shadow 180ms var(--ease-out), background 180ms var(--ease-out);
  }

  .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.72rem 1rem;
  }

  .button:hover,
  .nav-toggle:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0 rgba(33, 23, 19, 0.18);
  }

  .button:active,
  .nav-toggle:active {
    transform: translate(0, 0);
    box-shadow: 2px 2px 0 rgba(33, 23, 19, 0.18);
  }

  .button--primary {
    background: var(--color-accent);
  }

  .button--ghost {
    background: transparent;
  }

  .nav-toggle {
    display: inline-flex;
    padding: 0.62rem 0.9rem;
  }

  .nav-links {
    position: absolute;
    inset-block-start: 5rem;
    inset-inline: var(--space-page);
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    border: 2px solid var(--color-ink);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    background: rgba(255, 253, 247, 0.96);
    box-shadow: var(--shadow-soft);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    border-radius: 999px;
    padding: 0.65rem 0.9rem;
    color: var(--color-muted);
    font-weight: 850;
    text-decoration: none;
  }

  .nav-links a:hover {
    color: var(--color-ink);
    background: var(--color-surface-strong);
  }

  .eyebrow {
    color: var(--color-danger);
    font-size: var(--step--1);
    font-weight: 950;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .hero-card,
  .game-panel,
  .joke-card,
  .excuse-box {
    border: 2px solid var(--color-ink);
    border-radius: var(--radius-xl);
    background: rgba(255, 253, 247, 0.78);
    box-shadow: var(--shadow-hard), var(--shadow-soft);
  }

  .hero-card {
    position: relative;
    display: grid;
    justify-items: center;
    gap: 1rem;
    padding: clamp(1.5rem, 5vw, 3rem);
    overflow: hidden;
  }

  .hero-card::before {
    content: "";
    position: absolute;
    inset: 1rem;
    border: 2px dashed rgba(33, 23, 19, 0.18);
    border-radius: calc(var(--radius-xl) - 0.5rem);
    pointer-events: none;
  }

  .hero-card__badge {
    position: absolute;
    inset-block-start: 1rem;
    inset-inline-end: 1rem;
    rotate: 5deg;
    border: 2px solid var(--color-ink);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    background: var(--color-danger);
    color: white;
    font-size: 0.82rem;
    font-weight: 950;
    text-transform: uppercase;
  }

  .fly-preview {
    position: relative;
    width: min(56vw, 18rem);
    aspect-ratio: 1;
    animation: bob 2.4s var(--ease-out) infinite alternate;
  }

  .fly-preview__body,
  .fly-preview__wing,
  .fly-preview__eye,
  .fly-preview__antenna {
    position: absolute;
    display: block;
  }

  .fly-preview__body {
    inset: 36% 20% 24%;
    border: 4px solid var(--color-ink);
    border-radius: 48% 52% 44% 56% / 54% 46% 54% 46%;
    background: linear-gradient(135deg, #2d211d, #110b09);
  }

  .fly-preview__wing {
    top: 24%;
    width: 42%;
    height: 34%;
    border: 3px solid rgba(33, 23, 19, 0.42);
    border-radius: 65% 35% 70% 30%;
    background: var(--color-wing);
    transform-origin: bottom center;
    animation: wing-flap 150ms linear infinite alternate;
  }

  .fly-preview__wing--left {
    left: 14%;
    rotate: -18deg;
  }

  .fly-preview__wing--right {
    right: 14%;
    rotate: 18deg;
  }

  .fly-preview__eye {
    top: 43%;
    width: 16%;
    aspect-ratio: 1;
    border: 3px solid var(--color-ink);
    border-radius: 50%;
    background: #fff8e1;
  }

  .fly-preview__eye::after {
    content: "";
    position: absolute;
    inset: 32% 22% 22% 40%;
    border-radius: 50%;
    background: var(--color-danger);
  }

  .fly-preview__eye--left {
    left: 34%;
  }

  .fly-preview__eye--right {
    right: 34%;
  }

  .fly-preview__antenna {
    top: 29%;
    width: 30%;
    height: 22%;
    border-top: 5px solid var(--color-ink);
    border-radius: 50% 50% 0 0;
  }

  .fly-preview__antenna::after {
    content: "";
    position: absolute;
    top: -0.45rem;
    width: 0.75rem;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--color-ink);
  }

  .fly-preview__antenna--left {
    left: 17%;
    rotate: -34deg;
  }

  .fly-preview__antenna--left::after {
    left: -0.25rem;
  }

  .fly-preview__antenna--right {
    right: 17%;
    rotate: 34deg;
  }

  .fly-preview__antenna--right::after {
    right: -0.25rem;
  }

  .game-panel {
    display: grid;
    gap: 1rem;
    padding: clamp(1rem, 3vw, 1.5rem);
  }

  .scoreboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
  }

  .scoreboard div {
    border: 1px solid rgba(33, 23, 19, 0.16);
    border-radius: var(--radius-md);
    padding: 0.9rem;
    background: rgba(255, 240, 191, 0.5);
  }

  .scoreboard dt {
    color: var(--color-muted);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
  }

  .scoreboard dd {
    font-size: var(--step-2);
    font-weight: 950;
    line-height: 1;
  }

  .arena {
    position: relative;
    min-height: clamp(22rem, 48vw, 34rem);
    border: 2px dashed rgba(33, 23, 19, 0.25);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background:
      linear-gradient(90deg, rgba(33, 23, 19, 0.04) 1px, transparent 1px),
      linear-gradient(180deg, rgba(33, 23, 19, 0.04) 1px, transparent 1px),
      rgba(255, 248, 232, 0.8);
    background-size: 42px 42px;
  }

  .arena__hint {
    position: absolute;
    inset-block-start: 50%;
    inset-inline: 1rem;
    translate: 0 -50%;
    margin-inline: auto;
    max-width: 36rem;
    text-align: center;
    font-weight: 850;
  }

  .arena__hint.is-hidden {
    display: none;
  }

  .fly {
    --fly-size: 52px;
    position: absolute;
    z-index: 3;
    width: var(--fly-size);
    height: var(--fly-size);
    border: 0;
    background: transparent;
    cursor: pointer;
    filter: drop-shadow(0 8px 6px rgba(33, 23, 19, 0.18));
    transform: translate3d(var(--fly-x, 0), var(--fly-y, 0), 0) rotate(var(--fly-rotate, 0deg));
    transition: filter 120ms var(--ease-out);
  }

  .fly:hover {
    filter: drop-shadow(0 10px 8px rgba(33, 23, 19, 0.25)) saturate(1.4);
  }

  .fly__body,
  .fly__wing,
  .fly__eye,
  .fly__antenna,
  .fly__leg {
    position: absolute;
    display: block;
    pointer-events: none;
  }

  .fly__body {
    inset: 38% 18% 24%;
    border: 2px solid var(--color-ink);
    border-radius: 50%;
    background: radial-gradient(circle at 36% 34%, #55413a 0 16%, #1f1512 48%, #090605 100%);
  }

  .fly__wing {
    top: 23%;
    width: 40%;
    height: 30%;
    border: 1px solid rgba(33, 23, 19, 0.32);
    border-radius: 65% 35% 70% 30%;
    background: rgba(255, 255, 255, 0.68);
    animation: wing-flap 110ms linear infinite alternate;
  }

  .fly__wing--left {
    left: 14%;
    rotate: -18deg;
  }

  .fly__wing--right {
    right: 14%;
    rotate: 18deg;
  }

  .fly__eye {
    top: 43%;
    width: 18%;
    aspect-ratio: 1;
    border: 1px solid var(--color-ink);
    border-radius: 50%;
    background: #fff6cf;
  }

  .fly__eye::after {
    content: "";
    position: absolute;
    inset: 36% 22% 22% 42%;
    border-radius: 50%;
    background: var(--color-danger);
  }

  .fly__eye--left {
    left: 32%;
  }

  .fly__eye--right {
    right: 32%;
  }

  .fly__antenna {
    top: 30%;
    width: 32%;
    height: 22%;
    border-top: 2px solid var(--color-ink);
    border-radius: 50% 50% 0 0;
  }

  .fly__antenna::after {
    content: "";
    position: absolute;
    top: -0.22rem;
    width: 0.34rem;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--color-ink);
  }

  .fly__antenna--left {
    left: 15%;
    rotate: -36deg;
  }

  .fly__antenna--left::after {
    left: -0.1rem;
  }

  .fly__antenna--right {
    right: 15%;
    rotate: 36deg;
  }

  .fly__antenna--right::after {
    right: -0.1rem;
  }

  .fly__leg {
    top: 58%;
    width: 26%;
    height: 2px;
    background: var(--color-ink);
  }

  .fly__leg--left-a {
    left: 10%;
    rotate: 22deg;
  }

  .fly__leg--left-b {
    left: 12%;
    top: 67%;
    rotate: -18deg;
  }

  .fly__leg--right-a {
    right: 10%;
    rotate: -22deg;
  }

  .fly__leg--right-b {
    right: 12%;
    top: 67%;
    rotate: 18deg;
  }

  .fly.is-swatted {
    animation: poof 420ms var(--ease-out) forwards;
  }

  .fly__bubble {
    position: absolute;
    inset-block-start: -1.8rem;
    inset-inline-start: 50%;
    translate: -50% 0;
    border: 2px solid var(--color-ink);
    border-radius: 999px;
    padding: 0.1rem 0.42rem;
    background: white;
    color: var(--color-danger);
    font-size: 0.68rem;
    font-weight: 950;
    white-space: nowrap;
  }

  .joke-card {
    display: grid;
    gap: 1rem;
    padding: 1.2rem;
  }

  .joke-card > span {
    display: inline-grid;
    place-items: center;
    width: 2.4rem;
    aspect-ratio: 1;
    border: 2px solid var(--color-ink);
    border-radius: 50%;
    background: var(--color-accent);
    font-weight: 950;
  }

  .excuse-box {
    display: grid;
    gap: 1rem;
    padding: clamp(1.25rem, 4vw, 2rem);
  }

  .excuse-box p {
    color: var(--color-ink);
    font-size: var(--step-2);
    font-weight: 950;
    line-height: 1.08;
    letter-spacing: -0.04em;
  }

  .toast {
    position: fixed;
    inset-inline: 1rem;
    inset-block-end: 1rem;
    z-index: 40;
    width: fit-content;
    max-width: min(92vw, 32rem);
    margin-inline: auto;
    border: 2px solid var(--color-ink);
    border-radius: 999px;
    padding: 0.7rem 1rem;
    background: var(--color-night);
    color: white;
    font-weight: 900;
    opacity: 0;
    pointer-events: none;
    transform: translateY(1rem);
    transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
  }

  .toast.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  @media (min-width: 768px) {
    .nav-toggle {
      display: none;
    }

    .nav-links {
      position: static;
      display: flex;
      flex-direction: row;
      align-items: center;
      border: 0;
      padding: 0;
      background: transparent;
      box-shadow: none;
    }

    .joke-card {
      min-height: 18rem;
    }
  }
}

@layer utilities {
  @keyframes bob {
    from {
      transform: translateY(-0.5rem) rotate(-2deg);
    }

    to {
      transform: translateY(0.7rem) rotate(2deg);
    }
  }

  @keyframes wing-flap {
    from {
      transform: scaleY(0.84) rotateX(0deg);
    }

    to {
      transform: scaleY(1.08) rotateX(18deg);
    }
  }

  @keyframes poof {
    0% {
      opacity: 1;
      transform: translate3d(var(--fly-x, 0), var(--fly-y, 0), 0) rotate(var(--fly-rotate, 0deg)) scale(1);
    }

    100% {
      opacity: 0;
      transform: translate3d(var(--fly-x, 0), var(--fly-y, 0), 0) rotate(720deg) scale(0.2);
    }
  }

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

    .fly-preview,
    .fly__wing,
    .fly-preview__wing {
      animation: none;
    }
  }
}