:root {
    --bg-color: #0f172a;
    --panel-bg: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #10b981;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 10;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.logo span {
    color: var(--primary);
}

nav {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    position: relative;
    background: radial-gradient(circle at 50% 50%, #1e293b 0%, #0f172a 100%);
}

.canvas-container {
    flex: 1;
    height: 100%;
    cursor: grab;
    position: relative;
}

.canvas-container:active {
    cursor: grabbing;
}

.sidebar {
    width: 380px;
    background: var(--panel-bg);
    backdrop-filter: blur(20px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 5;
    box-shadow: -5px 0 25px rgba(0,0,0,0.5);
}

h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    line-height: 1.6;
    color: var(--text-muted);
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.action-btn {
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.action-btn.revealed {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.info-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: auto;
}

.info-box p {
    font-size: 0.9rem;
}

.info-box strong {
    color: var(--text-main);
    display: block;
    margin-bottom: 0.5rem;
}

/* Switch */
.auto-rotate-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 5px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #475569;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
}

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

input:checked + .slider:before {
  transform: translateX(20px);
}

.slider.round {
  border-radius: 24px;
}

.slider.round:before {
  border-radius: 50%;
}

/* Footer */
footer {
    padding: 1rem;
    text-align: center;
    background: rgba(15, 23, 42, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: var(--text-muted);
    z-index: 10;
}

footer a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: #60a5fa;
    text-decoration: underline;
}

footer .back-home {
    margin-left: 10px;
    padding-left: 10px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}