/* --- PREMIUM UNDERGROUND CHINESE CYBER ENTER SCREEN --- */
:root {
    --cyber-red: #ff1a1a;
    --dark-red: #4d0000;
    --bg-black: #000000;
    --text-shadow-red: 0 0 10px rgba(255, 26, 26, 0.4);
}

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

#enter-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-black);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999999;
    overflow: hidden;
    font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
    color: #fff;
    cursor: auto; /* Restored cursor visibility */
}

.enter-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 0.7;
    filter: brightness(0.6) contrast(1.1) saturate(1.3) sepia(0.2) hue-rotate(-10deg);
    pointer-events: none;
}

/* --- ATMOSPHERIC LAYERS --- */

/* Subtle Scanlines */
.scanlines {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(255, 26, 26, 0.03) 50%
    );
    background-size: 100% 4px;
    z-index: 10;
    pointer-events: none;
    opacity: 0.5;
}

/* Vignette / Light Falloff with Dark Red Tone for Chinese Vibe */
#enter-screen::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 25%, rgba(40, 0, 0, 0.85) 100%);
    z-index: 15;
    pointer-events: none;
}

/* Layered Fog Effect */
.fog-container {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 5;
    opacity: 0;
    transition: opacity 3s ease;
}

.fog-container.active {
    opacity: 0.6;
}

.fog-img {
    width: 300%;
    height: 100%;
    /* Wallpaper removed as requested - using transparent fog base if needed */
    background: transparent;
    animation: drift 60s linear infinite;
    mix-blend-mode: screen;
}

@keyframes drift {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- CENTER CONTENT --- */
.enter-content {
    position: relative;
    z-index: 100;
    text-align: center;
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* Text Hierarchy */
.loading-box, .status-box {
    overflow: hidden;
}

.loading-box .cn {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.5rem;
    color: var(--cyber-red);
    text-shadow: 0 0 15px var(--cyber-red);
    margin-bottom: 0.5rem;
    font-weight: 300;
    opacity: 0.8;
}

.loading-box .en {
    display: block;
    font-size: 0.6rem;
    letter-spacing: 0.3rem;
    color: #444;
}

.status-box {
    margin-top: 1rem;
    opacity: 0;
    transition: opacity 2s ease, transform 1.5s ease;
    transform: translateY(20px);
}

.status-box.active {
    opacity: 1;
    transform: translateY(0);
}

.status-box .cn {
    display: block;
    font-size: 1.1rem;
    letter-spacing: 0.1rem;
    margin-bottom: 0.3rem;
    font-weight: 400;
}

.status-box .en {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.2rem;
    color: #888;
}

/* --- PREMIUM BUTTON DESIGN --- */
.enter-btn {
    margin-top: 2rem;
    background: transparent;
    border: 1px solid rgba(255, 26, 26, 0.4);
    color: #fff;
    cursor: crosshair !important;
    position: relative;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    opacity: 0;
    pointer-events: none;
    z-index: 500;
    font-family: inherit;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    letter-spacing: 0.2rem;
    outline: none;
}

.enter-btn.active {
    opacity: 1;
    pointer-events: auto;
    animation: btnPulse 2s infinite alternate ease-in-out;
}

@keyframes btnPulse {
    0% { 
        box-shadow: 0 0 10px rgba(255, 26, 26, 0.1); 
        border-color: rgba(255, 26, 26, 0.2);
    }
    100% { 
        box-shadow: 0 0 25px rgba(255, 26, 26, 0.4); 
        border-color: rgba(255, 26, 26, 0.8);
    }
}



.enter-btn:hover {
    border-color: var(--cyber-red);
    box-shadow: 0 0 35px rgba(255, 26, 26, 0.4);
    letter-spacing: 0.3rem;
    background: rgba(255, 26, 26, 0.05);
}

.enter-btn .cn {
    display: block;
    font-size: 1.2rem;
    letter-spacing: 0.4rem;
    margin-bottom: 0.4rem;
    font-weight: 400;
    transition: text-shadow 0.3s;
}

.enter-btn .en {
    display: block;
    font-size: 0.6rem;
    letter-spacing: 0.2rem;
    color: #aaa;
}

.enter-btn:hover .cn {
    text-shadow: 0 0 10px var(--cyber-red);
    color: #fff;
}

/* --- SPECIAL EFFECTS --- */

/* Random Chinese Line (Subtle bottom watermark feel) */
.random-line {
    position: absolute;
    bottom: -150px;
    font-size: 0.7rem;
    letter-spacing: 0.5rem;
    color: rgba(255, 255, 255, 0.05);
    white-space: nowrap;
    pointer-events: none;
}

/* Glitch Flicker (Subtle) */
@keyframes glitchFlicker {
    0% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.7; }
    94% { opacity: 1; }
    96% { opacity: 0.8; }
    97% { opacity: 1; }
    100% { opacity: 1; }
}

.status-box.glitch {
    animation: glitchFlicker 4s infinite linear alternate-reverse;
}

/* --- THE SHATTERED ASSEMBLE GLITCH --- */
@keyframes glitchEntrance {
    0% { 
        opacity: 0; 
        transform: translateY(100px) scale(0.5) rotate(15deg); 
        filter: blur(20px) brightness(5) hue-rotate(90deg);
    }
    15% { 
        opacity: 0.8; 
        transform: translateY(-20px) scale(1.1) rotate(-8deg);
        filter: blur(5px) brightness(2);
        text-shadow: 3px 0 #ff1a1a, -3px 0 #00ffff;
    }
    25% { 
        opacity: 0.3; 
        transform: translateY(10px) scale(0.9) rotate(5deg);
        filter: brightness(1);
    }
    35% { 
        opacity: 1; 
        transform: translateY(-5px) scale(1.05) rotate(-2deg);
        text-shadow: -2px 0 #ff1a1a, 2px 0 #00ffff;
    }
    100% { 
        opacity: 1; 
        transform: translateY(0) scale(1) rotate(0deg); 
        filter: none;
        text-shadow: none;
        visibility: visible;
    }
}

/* Typing Cursor Effect */
.typing-cursor {
    display: inline-block;
    width: 8px;
    height: 1.2rem;
    background: var(--cyber-red);
    margin-left: 5px;
    animation: blink 0.8s infinite;
    vertical-align: middle;
}

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

/* Custom Cursor Glow */
.cursor-glow {
    position: fixed;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 26, 26, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 10000001; /* Higher than enter screen */
    transform: translate(-50%, -50%);
    mix-blend-mode: screen;
}

/* Ultimate Combo: Pixel-Wave + Star-Map (One Char per Column) */
.pixel-column {
    position: absolute;
    top: 0;
    width: 5%;
    height: 100%;
    background: #000;
    z-index: 150;
    transition: transform 5s cubic-bezier(0.19, 1, 0.22, 1), background 1s ease, box-shadow 1s ease;
    pointer-events: none;
    border-right: 0.1px solid rgba(255, 26, 26, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.column-select-glow {
    background: rgba(255, 26, 26, 0.15) !important;
    box-shadow: inset 0 0 30px rgba(255, 26, 26, 0.6), 0 0 10px rgba(255, 26, 26, 0.3);
}

.welcome-msg {
    margin-top: 15vh;
    font-size: 1.8rem;
    color: var(--cyber-red);
    text-shadow: 0 0 10px var(--cyber-red);
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
}

.access-msg {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.4rem;
    color: #fff;
    text-shadow: 0 0 10px var(--cyber-red);
}

.pixel-active {
    transform: translateY(110%);
}

.constellation-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyber-red), transparent);
    z-index: 151;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 0 10px var(--cyber-red);
    transform-origin: left center;
}

.constellation-active {
    animation: drawLine 0.7s cubic-bezier(0.19, 1, 0.22, 1) forwards;
}

@keyframes drawLine {
    0% { width: 0; opacity: 1; }
    100% { width: 140vmax; opacity: 0; }
}

.combo-content-fade {
    animation: comboFade 0.6s ease forwards;
}

@keyframes comboFade {
    0% { opacity: 1; filter: brightness(1) contrast(1); }
    100% { opacity: 0; filter: brightness(2) contrast(1.5) blur(10px); }
}

/* --- ULTIMATE GLITCH FADE OUT --- */
.glitch-out {
    animation: glitchOutAnim 1.4s cubic-bezier(0.19, 1, 0.22, 1) forwards;
    pointer-events: none;
}

@keyframes glitchOutAnim {
    0% { 
        transform: scale(1) translate(0); 
        filter: brightness(1) contrast(1) hue-rotate(0deg); 
        opacity: 0.7; 
    }
    10% { 
        transform: scale(1.05) translate(-10px, 5px); 
        filter: brightness(2) contrast(1.5) hue-rotate(90deg); 
        opacity: 0.9;
    }
    20% { 
        transform: scale(0.95) translate(10px, -5px); 
        filter: brightness(1) contrast(1) hue-rotate(0deg); 
        clip-path: inset(10% 0 80% 0);
    }
    30% { 
        transform: scale(1.1) translate(-15px, 0); 
        filter: brightness(1.5) contrast(1.2) hue-rotate(-45deg); 
        clip-path: inset(80% 0 5% 0);
        opacity: 0.6;
    }
    45% { 
        transform: scale(1.2) translate(15px, 0);
        filter: brightness(0.5) contrast(2) saturate(3);
        opacity: 0.4;
    }
    60% { 
        transform: scale(1.3) translate(0, 5px);
        filter: brightness(2) contrast(3);
        opacity: 0.2;
    }
    100% { 
        transform: scale(1.6) translate(0, 0); 
        filter: brightness(0) contrast(1); 
        opacity: 0;
        visibility: hidden;
    }
}

@keyframes masterGlitch {
    0% { transform: scale(1) translate(0); filter: contrast(1) brightness(1); }
    10% { transform: scale(1.02) translate(5px, -2px); filter: contrast(2) brightness(1.5); }
    20% { transform: scale(1) translate(-5px, 2px); filter: contrast(1); }
    30% { transform: scale(1.05) translate(0); filter: hue-rotate(90deg); }
    100% { transform: scale(1.2); filter: brightness(0); opacity: 0; }
}

/* High-End Shattered Assemble Fade-In */
@keyframes glitchEntrance {
    0% { 
        transform: scale(1.2) translateY(50px) skewX(20deg); 
        filter: brightness(5) contrast(2) blur(20px); 
        opacity: 0; 
    }
    10% { 
        transform: scale(1) translateY(0) skewX(0); 
        filter: hue-rotate(90deg) brightness(2); 
        opacity: 0.3; 
    }
    20% { 
        clip-path: inset(20% 0 70% 0); 
        transform: translateX(20px); 
    }
    30% { 
        clip-path: inset(70% 0 10% 0); 
        transform: translateX(-20px); 
        opacity: 0.6; 
    }
    45% { 
        filter: brightness(1.5) contrast(1.5); 
        text-shadow: 3px 0 var(--cyber-red), -3px 0 #00ffff;
        opacity: 0.8; 
    }
    60% { 
        transform: scale(1.05); 
        opacity: 1; 
    }
    100% { 
        transform: scale(1); 
        filter: brightness(1) blur(0); 
        opacity: 1; 
        text-shadow: none;
    }
}

.main-glitch-active {
    animation: mainScreenGlitch 1.2s cubic-bezier(0.19, 1, 0.22, 1) forwards;
}

@keyframes mainScreenGlitch {
    0% { filter: brightness(3) hue-rotate(90deg) blur(10px); }
    30% { filter: contrast(2) saturate(0) invert(0.1); }
    60% { filter: contrast(1.2) hue-rotate(-45deg); }
    100% { filter: brightness(1) hue-rotate(0deg) blur(0); }
}