/* ⚛️ QUANTUM CALENDAR - Advanced Date Calculator */
/* Sleek Black and Neon Theme - Centered Single Page Layout */

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

body {
    font-family: 'Orbitron', 'Courier New', monospace;
    background: radial-gradient(ellipse at center, #000000 0%, #0a0a0a 30%, #1a1a1a 70%, #000000 100%);
    color: #00ffff;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Animated Starfield Background */
.starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    background: transparent;
}

.star {
    position: absolute;
    background: #00ffff;
    border-radius: 50%;
    animation: twinkle var(--duration) infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* Floating Nebula Clouds */
.nebula {
    position: fixed;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.05;
    z-index: -2;
    animation: nebulaFloat 20s ease-in-out infinite;
}

.nebula-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #00ffff, transparent);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.nebula-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #00ff88, transparent);
    top: 60%;
    right: 15%;
    animation-delay: -7s;
}

.nebula-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #ff00ff, transparent);
    bottom: 10%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes nebulaFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* Main Container - Centered */
.cosmic-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.time-machine {
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.95) 0%, 
        rgba(20, 20, 20, 0.9) 50%, 
        rgba(0, 0, 0, 0.95) 100%);
    border: 2px solid #00ffff;
    border-radius: 20px;
    box-shadow: 
        0 0 40px rgba(0, 255, 255, 0.3),
        inset 0 0 40px rgba(0, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    max-width: 800px;
    width: 100%;
    position: relative;
    overflow: hidden;
    margin: 0 auto;
}

.time-machine::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(0, 255, 255, 0.1) 50%, transparent 70%);
    animation: scanLine 4s linear infinite;
    pointer-events: none;
}

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

/* Machine Header - Centered */
.machine-header {
    padding: 25px 30px;
    text-align: center;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    position: relative;
}

.hologram-display {
    margin-bottom: 15px;
}

.cosmic-title {
    font-size: 2.2rem;
    font-weight: 900;
    color: #00ffff;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.8);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle-hologram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.hologram-text {
    font-size: 0.9rem;
    color: #00ff88;
    font-weight: 600;
    letter-spacing: 1.5px;
}

.version {
    font-size: 0.7rem;
    color: #888;
    font-family: 'Courier New', monospace;
    opacity: 0.8;
}

/* Control Console - Centered */
.control-console {
    padding: 25px 30px;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    text-align: center;
}

.console-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.input-field {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.cosmic-label {
    font-size: 1rem;
    color: #00ff88;
    font-weight: 600;
    letter-spacing: 1px;
}

.date-input-wrapper {
    position: relative;
    max-width: 280px;
    width: 100%;
}

.cosmic-input {
    width: 100%;
    padding: 12px;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #00ffff;
    border-radius: 10px;
    color: #00ffff;
    font-size: 0.95rem;
    font-family: 'Orbitron', monospace;
    text-align: center;
    transition: all 0.3s ease;
}

.cosmic-input:focus {
    outline: none;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    transform: scale(1.02);
}

.input-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 10px;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.cosmic-input:focus + .input-glow {
    opacity: 1;
}

/* Navigate Button - Centered */
.navigate-button {
    position: relative;
    padding: 15px 25px;
    background: linear-gradient(45deg, #00ffff, #00ff88);
    border: none;
    border-radius: 12px;
    color: #000;
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Orbitron', monospace;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    overflow: hidden;
    max-width: 250px;
    width: 100%;
}

.navigate-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 255, 255, 0.4);
}

.navigate-button:active {
    transform: translateY(0);
}

.button-text {
    position: relative;
    z-index: 2;
}

.button-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle, transparent 30%, rgba(255, 255, 255, 0.1) 70%);
    animation: particleFlow 2s linear infinite;
}

@keyframes particleFlow {
    0% { transform: translateY(100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(-100%); opacity: 0; }
}

/* Quantum Elements in Perfect Horizontal Line */
.quantum-line {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    flex-wrap: nowrap;
    overflow-x: auto;
}

.quantum-element {
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 12px;
    padding: 15px;
    min-width: 120px;
    max-width: 120px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.quantum-element::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
    pointer-events: none;
}

.quantum-element:hover::before {
    transform: translateX(100%);
}

.quantum-element:hover {
    transform: translateY(-3px);
    border-color: #00ffff;
    box-shadow: 0 8px 20px rgba(0, 255, 255, 0.3);
}

.element-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
    animation: quantumPulse 2s ease-in-out infinite;
}

@keyframes quantumPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.element-title {
    font-size: 0.8rem;
    color: #00ffff;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.element-status {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.element-status.success {
    color: #00ff88;
    border-color: #00ff88;
    background: rgba(0, 255, 136, 0.1);
}

.element-status.warning {
    color: #ffff00;
    border-color: #ffff00;
    background: rgba(255, 255, 0, 0.1);
}

.element-status.error {
    color: #ff4444;
    border-color: #ff4444;
    background: rgba(255, 68, 68, 0.1);
}

.element-status.processing {
    color: #00ffff;
    border-color: #00ffff;
    background: rgba(0, 255, 255, 0.1);
    animation: processingGlow 1.5s ease-in-out infinite;
}

@keyframes processingGlow {
    0%, 100% { box-shadow: 0 0 8px rgba(0, 255, 255, 0.3); }
    50% { box-shadow: 0 0 16px rgba(0, 255, 255, 0.6); }
}

/* Ultra Level Features */
.ultra-features {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px 30px;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 0, 0.3);
    border-radius: 10px;
    transition: all 0.3s ease;
    min-width: 100px;
}

.feature-item:hover {
    border-color: #ffff00;
    box-shadow: 0 5px 15px rgba(255, 255, 0, 0.3);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.5rem;
    animation: ultraFloat 3s ease-in-out infinite;
}

@keyframes ultraFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(5deg); }
}

.feature-text {
    font-size: 0.7rem;
    color: #ffff00;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-align: center;
}

/* Results Display - Centered */
.results-display {
    padding: 25px 30px;
    text-align: center;
}

.simple-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.date-result {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 15px;
    padding: 20px;
    max-width: 500px;
    width: 100%;
    transition: all 0.3s ease;
}

.date-result:hover {
    border-color: #00ffff;
    box-shadow: 0 8px 20px rgba(0, 255, 255, 0.2);
}

.result-emoji {
    font-size: 2.5rem;
    margin-bottom: 12px;
    animation: emojiBounce 2s ease-in-out infinite;
}

@keyframes emojiBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.result-date {
    font-size: 1.3rem;
    font-weight: 700;
    color: #00ffff;
    margin-bottom: 12px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 10px;
    border-left: 3px solid #00ff88;
    transition: transform 0.3s ease;
}

.funny-quote {
    font-size: 0.9rem;
    color: #00ff88;
    font-style: italic;
    line-height: 1.4;
    margin-bottom: 15px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 136, 0.3);
    transition: transform 0.3s ease;
}

/* Extra Funny Elements */
.extra-funny {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.funny-item {
    font-size: 0.8rem;
    color: #ff69b4;
    padding: 8px 12px;
    background: rgba(255, 105, 180, 0.1);
    border: 1px solid rgba(255, 105, 180, 0.3);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.funny-item:hover {
    background: rgba(255, 105, 180, 0.2);
    transform: scale(1.02);
}

.funny-item span {
    font-weight: 600;
    color: #ff69b4;
}

/* Easter Egg Section */
.easter-egg-section {
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid rgba(0, 255, 255, 0.3);
}

.easter-egg-btn {
    background: linear-gradient(45deg, #ff69b4, #9370db);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    letter-spacing: 1px;
}

.easter-egg-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(255, 105, 180, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .cosmic-title {
        font-size: 1.8rem;
    }
    
    .machine-header,
    .control-console,
    .quantum-line,
    .ultra-features,
    .results-display,
    .easter-egg-section {
        padding: 20px;
    }
    
    .navigate-button {
        font-size: 0.9rem;
        padding: 12px 20px;
    }
    
    .quantum-line {
        gap: 10px;
        padding: 15px 20px;
    }
    
    .quantum-element {
        min-width: 100px;
        max-width: 100px;
        padding: 12px;
    }
    
    .element-icon {
        font-size: 1.5rem;
    }
    
    .element-title {
        font-size: 0.7rem;
    }
    
    .element-status {
        font-size: 0.6rem;
        padding: 5px 8px;
    }
    
    .ultra-features {
        gap: 15px;
        padding: 15px 20px;
    }
    
    .feature-item {
        min-width: 80px;
        padding: 12px;
    }
    
    .feature-icon {
        font-size: 1.2rem;
    }
    
    .feature-text {
        font-size: 0.6rem;
    }
    
    .result-emoji {
        font-size: 2rem;
    }
    
    .result-date {
        font-size: 1.1rem;
    }
    
    .funny-quote {
        font-size: 0.8rem;
    }
    
    .funny-item {
        font-size: 0.7rem;
        padding: 6px 10px;
    }
}

/* Cosmic Particle Effects */
.cosmic-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: #00ffff;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1000;
    animation: cosmicFloat 2s ease-out forwards;
}

@keyframes cosmicFloat {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(0) translateY(-100px);
    }
}