:root {
  /* Motyw inspirowany Material You — domyślnie ciemny */
  --color-primary: #6750A4;
  --color-primary-variant: #7F67BE;
  --color-secondary: #625B71;
  --color-accent: #00BFA6;
  --color-surface: #1C1B1F;
  --color-surface-2: #232128;
  --color-background: #16151A;
  --color-on-primary: #FFFFFF;
  --color-on-surface: #E6E1E5;
  --color-error: #B3261E;

  --radius: 16px;
  --shadow-1: 0 1px 2px rgba(0,0,0,.6), 0 1px 3px rgba(0,0,0,.5);
  --shadow-2: 0 8px 24px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.3);

  --focus-ring: 0 0 0 3px rgba(103,80,164,.35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-surface: #1C1B1F;
    --color-surface-2: #232128;
    --color-background: #16151A;
    --color-on-surface: #E6E1E5;
    --shadow-1: 0 1px 2px rgba(0,0,0,.6), 0 1px 3px rgba(0,0,0,.5);
    --shadow-2: 0 8px 24px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.3);
  }
}

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

html, body { height: 100%; }

html { color-scheme: dark light; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--color-on-surface);
  background:
    radial-gradient(1200px 600px at 10% -20%, rgba(103,80,164,.12), transparent 60%),
    radial-gradient(1200px 600px at 110% 0%, rgba(0,191,166,.10), transparent 60%),
    var(--color-background);
  line-height: 1.5;
  min-height: 100svh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 920px;
  margin-inline: auto;
  padding: 16px;
}

.app-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-variant));
  color: var(--color-on-primary);
  padding: 32px 0;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 -1px 0 rgba(255,255,255,.06);
}

.title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 32px;
  margin: 0 0 4px 0;
  letter-spacing: .3px;
}

.subtitle {
  margin: 0;
  opacity: .9;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: 20px;
  margin-block: 16px;
  border: 1px solid rgba(230,225,229,0.08);
  backdrop-filter: saturate(140%) blur(0px);
}

.joke-card .joke-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.joke-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.joke-text {
  font-size: 18px;
  margin: 0;
}

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

.field {
  display: grid;
  gap: 6px;
}

label {
  font-weight: 600;
}

input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(230,225,229,0.18); /* fallback */
  background: var(--color-surface-2);
  color: inherit;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, background .2s ease;
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  input[type="text"] {
    border: 1px solid color-mix(in srgb, var(--color-on-surface) 18%, transparent);
  }
}

input[type="text"]:hover {
  border-color: rgba(103,80,164,.4); /* fallback */
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  input[type="text"]:hover {
    border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  }
}

input[type="text"]:focus {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
  background: var(--color-surface);
}

input[aria-invalid="true"] {
  border-color: var(--color-error);
}

.hint {
  font-size: 12px;
  color: rgba(230,225,229,.6); /* fallback */
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  .hint {
    color: color-mix(in srgb, var(--color-on-surface) 60%, transparent);
  }
}

.error {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-error);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.btn {
  --btn-bg: var(--color-surface);
  --btn-fg: var(--color-on-surface);
  --btn-hover: rgba(255,255,255,.08);
  --btn-pressed: rgba(255,255,255,.14);

  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  font-weight: 600;
  transition: transform .06s ease, background .15s ease, box-shadow .15s ease, opacity .15s ease;
  position: relative;
  outline: none;
}

.btn .icon { font-size: 20px; }

.btn:hover { background: var(--btn-hover); }
.btn:active { background: var(--btn-pressed); transform: translateY(1px); }
.btn:focus-visible { box-shadow: var(--focus-ring); }

@supports (color: color-mix(in srgb, black 50%, white)) {
  .btn {
    --btn-hover: color-mix(in srgb, var(--color-on-surface) 8%, var(--btn-bg));
    --btn-pressed: color-mix(in srgb, var(--color-on-surface) 14%, var(--btn-bg));
  }
}

.btn-primary {
  --btn-bg: var(--color-primary);
  --btn-fg: var(--color-on-primary);
  --btn-hover: #5d47a0; /* fallback */
  --btn-pressed: #513e90; /* fallback */
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  .btn-primary {
    --btn-hover: color-mix(in srgb, var(--color-primary) 90%, black 4%);
    --btn-pressed: color-mix(in srgb, var(--color-primary) 85%, black 10%);
  }
}

.btn-tonal {
  --btn-bg: rgba(103,80,164,.12); /* fallback */
  --btn-fg: var(--color-primary);
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  .btn-tonal {
    --btn-bg: color-mix(in srgb, var(--color-primary) 12%, var(--color-surface));
  }
}

.btn[disabled] {
  opacity: .6;
  cursor: not-allowed;
}

.btn .spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.3); /* fallback */
  border-top-color: currentColor;
  animation: spin 1s linear infinite;
  display: none;
  margin-left: 2px;
}
@supports (color: color-mix(in srgb, black 50%, white)) {
  .btn .spinner {
    border: 2px solid color-mix(in srgb, var(--btn-fg) 30%, transparent);
    border-top-color: var(--btn-fg);
  }
}

.btn.loading .btn-content { visibility: hidden; }
.btn.loading .spinner { display: inline-block; }
.btn.loading .sr-only { position: static; width: auto; height: auto; clip: auto; clip-path: none; }

.greeting {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  margin: 16px 0 0;
  text-align: center;
  letter-spacing: 0.3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary-variant), var(--color-accent));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: greeting-shine 6s linear infinite;
  text-shadow: 0 4px 20px rgba(127, 103, 190, .45);
}

.error-card {
  border-left: 4px solid var(--color-error);
}

.error-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.error-row .icon { color: var(--color-error); }

#fireworksCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.app-header, main, .app-footer { position: relative; z-index: 1; }

.app-footer {
  color: rgba(230,225,229,.8);
  padding-bottom: 32px;
}

[hidden] { display: none !important; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Material Symbols setup */
.material-symbols-rounded {
  font-variation-settings: 'FILL' 0, 'wght' 500, 'GRAD' 0, 'opsz' 24;
  display: inline-block;
  line-height: 1;
  vertical-align: middle;
}

.icon { font-size: 24px; }

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes greeting-shine {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  #fireworksCanvas { display: none; }
}

/* Ensure the Material Symbols font is used for icon glyphs */
.material-symbols-rounded {
  font-family: "Material Symbols Rounded";
  font-style: normal;
  font-weight: normal;
  letter-spacing: normal;
  text-transform: none;
}