/* Landing Page Styles - Hide scrollbar completely */
html.landing-page {
    overflow: hidden;
    height: 100%;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

html.landing-page::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

html.landing-page body {
    overflow: hidden;
    height: 100vh;
    width: 100%;
    margin: 0;
    padding: 0;
}

.landing-container {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.landing-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--shadow-glow-minimal) 1px, transparent 1px),
        linear-gradient(90deg, var(--shadow-glow-minimal) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    z-index: 0;
    opacity: 0.3;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.landing-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-xl);
    max-width: 100%;
}

/* Intro Text Animation */
.intro-text {
    font-size: 3rem;
    font-weight: bold;
    color: var(--text-primary);
    text-shadow: 0 0 20px var(--shadow-glow);
    margin-bottom: var(--spacing-xl);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
}

.intro-text span {
    position: relative;
    display: inline-block;
}

.intro-text.complete {
    animation: textGlow 2s ease-in-out infinite;
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 20px var(--shadow-glow);
    }
    50% {
        text-shadow: 0 0 30px var(--shadow-glow), 0 0 40px var(--shadow-glow-light);
    }
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

/* Options Container */
.options-container {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out 1.5s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Option Buttons */
.option-button {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.25rem;
    font-family: var(--font-mono);
    font-weight: bold;
    text-decoration: none;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: lowercase;
    position: relative;
    overflow: hidden;
    text-shadow: 0 0 10px var(--shadow-glow);
    box-shadow: 0 0 20px var(--shadow-glow-light);
}

.option-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--shadow-glow-light), transparent);
    transition: left 0.5s ease;
}

.option-button:hover {
    background: var(--shadow-glow-very-light);
    box-shadow: 0 0 30px var(--shadow-glow);
    transform: translateY(-2px);
}

.option-button:hover::before {
    left: 100%;
}

.option-button:active {
    transform: translateY(0);
    box-shadow: 0 0 15px var(--shadow-glow);
}

.option-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--shadow-glow);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.option-button:active::after {
    width: 300px;
    height: 300px;
}

.terminal-button {
    border-color: var(--text-secondary);
}

.lazy-button {
    border-color: var(--text-muted);
    color: var(--text-muted);
}

.lazy-button:hover {
    border-color: var(--text-secondary);
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .intro-text {
        font-size: 2rem;
        min-height: 60px;
    }
    
    .option-button {
        font-size: 1rem;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .options-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .landing-content {
        padding: var(--spacing-md);
    }
    
    .intro-text {
        font-size: 1.5rem;
        min-height: 50px;
    }
    
    .option-button {
        font-size: 0.9rem;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 80%;
        max-width: 250px;
    }
}

/* Floating particles effect */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

.floating-particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 50%;
    pointer-events: none;
    animation: float 15s linear infinite;
    box-shadow: 0 0 4px var(--shadow-glow);
}

/* Page transition fade */
.landing-container {
    animation: pageFadeIn 0.5s ease-out;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}