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

:root {
  --color-bg: #f6f7fb;
  --color-surface: #ffffff;
  --color-elevated: #ffffff;
  --color-border: #e5e9f0;
  --color-text: #11151c;
  --color-text-muted: #5b667a;
  --color-primary: #2c63ff;
  --color-primary-600: #2554db;
  --color-primary-700: #1e46b7;
  --color-success: #27af27;
  --color-success-soft: #27af2722;
  --color-danger: #ff3922;
  --color-danger-soft: #ff392222;
  --color-info: #0ea5b6;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 6px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

  --gap-1: 4px;
  --gap-2: 8px;
  --gap-3: 12px;
  --gap-4: 16px;
  --gap-5: 24px;
  --gap-6: 32px;
  --drawer-peek: 28px;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto 0 24px;
  padding: var(--gap-6) var(--gap-5);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

h1 {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: left;
  color: var(--color-text);
}

.subheader {
  margin-top: var(--gap-2);
  color: var(--color-text-muted);
  text-align: left;
}

form {
  width: 100%;
  max-width: 640px;
  margin: var(--gap-6) 0 0;
  text-align: left;
  padding: var(--gap-5);
}

input,
button {
  height: 52px;
  border-radius: var(--radius-md);
  padding: 0 var(--gap-4);
  font-size: 18px;
}

input[type="text"] {
  width: 100%;
  color: var(--color-text);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}

input[type="text"]::placeholder {
  color: var(--color-text-muted);
}

input[type="text"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--color-primary) 25%, transparent);
}

button {
  margin-top: var(--gap-3);
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  border: 0;
  font-weight: 700;
  letter-spacing: .2px;
  transition: transform .06s ease, background .2s ease, box-shadow .2s ease;
  box-shadow: 0 6px 0 var(--color-primary-700);
}

button:hover {
  cursor: pointer;
  background: var(--color-primary-600);
}

button:active {
  transform: translateY(2px);
  box-shadow: 0 4px 0 var(--color-primary-700);
}

.text-center {
  text-align: center;
}

.counter-container {
  position: fixed;
  top: 100px;
  right: 30px;
  width: 360px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  list-style: none;
  margin: 0;
  padding: var(--gap-4);
  text-align: center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.title {
  font-size: 22px;
  font-weight: 800;
}
.board-label {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  margin-top: var(--gap-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.counter {
  font-size: clamp(56px, 10vw, 120px);
  font-weight: 900;
  color: var(--color-text);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.title {
  position: fixed;
  top: 20px;
  left: 30px;
  z-index: 98;
  border: 1px solid var(--color-border);
  outline: none;
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

#list {
  width: calc(100% - 400px);
  min-width: 65vw;
  max-width: 100%;
}
ul li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  list-style: none;
  margin: var(--gap-2) 0;
  padding: 6px 8px;
  border-radius: 6px;
}

ol li {
  list-style-type: none;
  background-color: var(--color-elevated);
  border-radius: var(--radius-sm);
}

pre {
  outline: 1px solid var(--color-border);
  background: var(--color-elevated);
  color: var(--color-text);
  padding: 6px 10px;
  margin: 4px 8px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.3;
}
.string {
  color: #7ee787;
}
.number {
  color: #ffd166;
}
.boolean {
  color: #80bfff;
}
.null {
  color: #f78fb3;
}
.key {
  color: #ff7b72;
}

.collapse:hover {
  cursor: pointer;
  text-decoration: underline;
}

.highlight {
  color: #ddd;
  font-weight: bold;
}

.btn-show-results { display: none; }

.btn-jump-latest {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 99;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--color-border);
  outline: none;
  background-color: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.text-black {
  color: var(--color-text);
}
.text-bold {
  font-weight: bold;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-4);
  padding: var(--gap-4) 0 0;
}

.theme-toggle { display: none; }

/* Hide drawer handle by default (desktop); mobile overrides below */
.drawer-handle { display: none; }

@media (max-width: 640px) {
  .container {
    margin: 0;
    padding: var(--gap-4);
  }

  /* List takes full width with minimal padding */
  #list {
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
  }
  ul li {
    margin: 6px 0;
    padding: 4px 6px;
    border-radius: 4px;
  }
  pre {
    padding: 4px 6px;
    margin: 2px 4px;
    font-size: 12px;
    line-height: 1.35;
  }

  /* Floating box becomes a bottom drawer */
  .counter-container {
    top: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    max-width: 100%;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    transform: translateY(calc(-100% + var(--drawer-peek)));
    transition: transform .25s ease;
    z-index: 100;
  }
  .counter-container.drawer-open {
    transform: translateY(0);
  }

  /* Integrated drawer handle */
  .drawer-handle {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, 50%);
    font-size: 11px;
    font-weight: 700;
    border: 1px solid var(--color-border);
    outline: none;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--color-text);
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 9999px;
    box-shadow: var(--shadow-sm);
    display: block;
    z-index: 101;
  }
  .counter-container.drawer-open .drawer-handle {
    top: 0;
    bottom: auto;
    transform: translate(-50%, -100%);
  }

  /* Drawer toggle button (only on mobile) */
  .btn-drawer-toggle { display: none; }
}