/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Theme Colors */
    --bg-primary: #1C1C1C;
    --bg-secondary: #2a2a2a;
    --bg-tertiary: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    min-height: 100vh;
    /* Hide scrollbar for all browsers */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
}

/* Hide scrollbar for WebKit browsers */
body::-webkit-scrollbar {
    display: none;
}

html {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

html::-webkit-scrollbar {
    display: none;
}

/* Particle Background */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
}

.particle {
    position: absolute;
    background: var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.4;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.4; 
    }
    50% { 
        transform: translateY(-30px) rotate(180deg); 
        opacity: 0.8; 
    }
}

/* Main Container */
.container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.content {
    text-align: center;
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    animation: pulse 2s ease-in-out infinite;
}

.logo i {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Title and Description */
.title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

/* Action Buttons */
.actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.what-btn, .notify-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 12px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
    border: none;
    position: relative;
    overflow: hidden;
}

.what-btn {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.what-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.notify-btn {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.notify-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Countdown */
.countdown {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.countdown-item {
    text-align: center;
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    min-width: 80px;
}

.countdown-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
}

.countdown-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Popup Styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    padding: var(--spacing-lg);
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup {
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-medium);
    /* Hide scrollbar for popup */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.popup::-webkit-scrollbar {
    display: none;
}

.popup-overlay.active .popup {
    transform: scale(1) translateY(0);
}

.popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.popup-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.close-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.popup-content {
    padding: var(--spacing-lg);
}

.project-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.project-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.project-item:last-child {
    margin-bottom: 0;
}

.project-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.project-info h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.project-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
    }
    50% { 
        transform: scale(1.05); 
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .logo h1 {
        font-size: var(--font-size-3xl);
    }
    
    .title {
        font-size: var(--font-size-2xl);
    }
    
    .description {
        font-size: var(--font-size-base);
    }
    
    .actions {
        flex-direction: column;
        align-items: center;
    }
    
    .what-btn, .notify-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .countdown {
        gap: var(--spacing-sm);
    }
    
    .countdown-item {
        min-width: 70px;
        padding: var(--spacing-sm);
    }
    
    .countdown-number {
        font-size: var(--font-size-xl);
    }
    
    .popup {
        margin: var(--spacing-sm);
        max-height: 90vh;
    }
    
    .popup-header {
        padding: var(--spacing-md);
    }
    
    .popup-content {
        padding: var(--spacing-md);
    }
    
    .project-item {
        flex-direction: column;
        text-align: center;
    }
    
    .project-icon {
        align-self: center;
    }
}

@media (max-width: 480px) {
    .logo i {
        font-size: 2.5rem;
    }
    
    .logo h1 {
        font-size: var(--font-size-2xl);
    }
    
    .title {
        font-size: var(--font-size-xl);
    }
    
    .countdown {
        gap: var(--spacing-xs);
    }
    
    .countdown-item {
        min-width: 60px;
        padding: var(--spacing-xs);
    }
    
    .countdown-number {
        font-size: var(--font-size-lg);
    }
    
    .countdown-label {
        font-size: var(--font-size-xs);
    }
}