:root {
	--bg-color: #f8fafc;
	--panel-bg: #ffffff;
	--primary: #6366f1;
	--text-main: #1e293b;
}

.app-container { display: grid; grid-template-columns: 380px 1fr; }

.sidebar1 {
	padding-right: 1.5rem;
	display: flex;
	flex-direction: column;
	gap: 1.25rem;
	overflow-y: auto;
}

.preview-pane {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1.25rem;
	position: sticky;
	top:80px;
}

.btn-group { display: grid; gap: 8px; grid-template-columns: 1fr 1fr; width:100%;}

.btn-group button {
  flex: 1;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 400;
  border-radius: 8px;
  cursor: pointer;
  transition: 
    background-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.1s ease;
}

.random-btn {
  background: #4d4cff;
  color: #fff;
}

.random-btn:hover {
  background: #2626ff;
}

.reset-btn {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #f87171;
}

.reset-btn:hover {
  background: #ffbfcf;
  border-color: #f87171;
}

.preset-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px;}
.preset-btn {
	background: #f1f5f9; border: 1px solid #e2e8f0; padding: 8px; 
	border-radius: 6px; cursor: pointer; font-size: 0.7rem; font-weight: 500; transition: 0.2s;
}
.preset-btn:hover { border-color: var(--primary); background: #eef2ff; }

fieldset { border: 1px solid #e2e8f0 ; border-radius: 12px; padding: 1rem; background: #fff; margin: 0; }
legend { font-weight: 700; font-size: 1rem; color: #64748b; }

.control { margin-bottom: 1rem; }
.control:last-child { margin-bottom: 0; }
.label-wrap { display: flex; justify-content: space-between; margin-bottom: 0.4rem; font-size: 0.8rem; font-weight: 600; }

input[type="range"]:not(.generator-input), input[type="color"] { width: 100%; cursor: pointer; }

input[type="color"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  height: 32px;
  background-color: transparent;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  overflow: hidden;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: 4px;
}

.preview-card {
	width: 100%; max-width: 1000px; background: white; padding: 8rem 4rem;
	border-radius: 12px; border: 1px solid #e2e8f0;
}

.sub-label {
    font-size: 0.7rem;
    color: #64748b;
    margin-top: 0.5rem;
    margin-bottom: 0.2rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
	display: flex; justify-content: space-between;
}
.badge { color: var(--primary); font-family: monospace; font-size:0.75rem;text-transform: lowercase;
	border:1px solid #e2e8f0;padding:2px 4px; background:var(--bg-color);border-radius:4px;}

.js-notice {
    font-size: 0.75rem;
    color: #f59e0b;
    background: #fffbeb;
    padding: 6px;
    border-radius: 4px;
    border: 1px solid #fef3c7;
    margin-top: 8px;
}

.switch-container {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
}

.switch-container input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #cbd5e1;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 34px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

input:checked + .switch-slider {
    background-color: var(--primary);
}

input:checked + .switch-slider:before {
    transform: translateX(22px);
}

input:focus + .switch-slider {
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.menu-btn { display: none; }

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 998;
}

.sidebar1 {
  z-index: 8;
}

.sidebar-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.sidebar-close {
  position: absolute;
  top: 0px;
  right: 0px;
  padding: 4px 5px;
  border-radius: 4px;
  border: none;
  background: #d90036;
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  display: none;

}

.sidebar-close:hover {
  background: #000;
}

.sidebar-close:hover {
  opacity: 1;
}

@media (max-width: 850px) {
	.sidebar-close {
		display: block;
	}
    .menu-btn {
        display: block;  z-index: 8;
        background: #4d4cff; color: white; border: none; padding: 1px 15px;
        border-radius: 6px; cursor: pointer;
		font-size:0.85em;
    }

    .app-container { grid-template-columns: 1fr; }

    .sidebar1 {
        position: fixed; top: 0; left: -320px;
        width: 320px; height: 100vh; z-index: 999; background:white;padding:10px;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 20px rgba(0,0,0,0.1);
    }

    .sidebar1.open {
        transform: translateX(320px);
    }

}

.preset-card {
    background: #ffffff;
    padding: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    transition: box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.preset-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.preset-label {
    font-size: 10px;
    font-weight: bold;
    color: #64748b;
    letter-spacing: 0.05em;
}

.preset-preview-range {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
    pointer-events: none;
}

.preset-preview-range::-webkit-slider-runnable-track {
    width: 100%;
    height: var(--track-h);
    background: var(--track-bg);
    border-radius: var(--track-r);
    border: var(--track-bw) solid var(--track-bc);
}

.preset-preview-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: var(--thumb-s);
    width: var(--thumb-s);
    border-radius: var(--thumb-r);
    background: var(--thumb-bg);
    margin-top: calc((var(--track-h) / 2) - (var(--thumb-s) / 2));
    border: var(--thumb-bw) solid var(--thumb-bc);
    box-shadow: 0 0 var(--thumb-shadow);
}