:root {
    --primary: #FF9900;
    --secondary: #232F3E;
    --dark: #131A22;
    --light: #F2F4F8;
    --glass: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-color: #333;
    --text-light: #f5f5f5;
    --success: #28a745;
    --warning: #ffc107;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Glassmorphism */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

/* Navigation */
nav {
    background-color: var(--secondary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
}

/* Containers */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    animation: fadeIn 0.8s ease-out;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 153, 0, 0.3);
}

.btn-primary:hover {
    background: #e68a00;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 153, 0, 0.4);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background: var(--dark);
    transform: translateY(-2px);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--secondary);
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

/* Cards */
.task-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.task-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border-left: 5px solid var(--primary);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.task-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.task-card h3 {
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.task-reward {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #e8f5e9;
    color: #2e7d32;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 1rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary);
    animation: fadeIn 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    animation: fadeIn 1.2s ease-out;
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--secondary), var(--dark));
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: float 6s ease-in-out infinite;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-top: 0.5rem;
    color: var(--primary);
}

/* Auth Pages */
.auth-container {
    max-width: 450px;
    margin: 4rem auto;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

/* Notifications */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    animation: fadeIn 0.5s ease-out;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
}