* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

:root {
    --primary-gradient-light: linear-gradient(135deg, #f5f7fa, #e4e8f0);
    --primary-gradient-dark: linear-gradient(135deg, #1b1b23, #2d2d44);
    --text-primary-light: #333;
    --text-primary-dark: #f5f7fa;
    --text-secondary-light: #666;
    --text-secondary-dark: #c1c7d0;
    --icon-color-light: #4a6fa5;
    --icon-color-dark: #7b9cc6;
    --arrow-color-light: #666;
    --arrow-color-dark: #aaa;
    --hover-color: #ff7b00;
    --logo-color: #ff7b00;
}

body {
    background-color: #1b1b23;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--primary-gradient-light);
    color: var(--text-primary-light);
    transition: background 0.3s ease, color 0.3s ease;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

body.dark-mode {
    background: var(--primary-gradient-dark);
    color: var(--text-primary-dark);
}

.logo {
    position: absolute;
    top: 20px;
    left: 20px;
    color: var(--logo-color);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
    opacity: 0;
    animation: signature 2s forwards;
    animation-delay: 0.5s;
    z-index: 10;
    cursor: default;
}

@keyframes signature {
    0% {
        opacity: 0;
        transform: translateX(-20px) rotate(-5deg);
    }
    50% {
        transform: translateX(5px) rotate(2deg);
    }
    100% {
        opacity: 1;
        transform: translateX(0) rotate(0deg);
    }
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
    animation: fadeIn 0.8s ease-in-out;
    z-index: 5;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.utc-time {
    text-align: center;
    font-size: 14px;
    margin-bottom: 25px;
    color: var(--text-secondary-light);
    font-weight: 500;
    letter-spacing: 0.5px;
}

body.dark-mode .utc-time {
    color: var(--text-secondary-dark);
}

.welcome-card {
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    backdrop-filter: none;
    transition: none;
    border: none;
    text-align: center;
}

.welcome-card h1 {
    font-size: 28px;
    margin-bottom: 8px;
    text-align: center;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.welcome-card p {
    color: var(--text-secondary-light);
    text-align: center;
    margin-bottom: 30px;
    font-size: 15px;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

body.dark-mode .welcome-card p {
    color: var(--text-secondary-dark);
}

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

@media (min-width: 600px) {
    .services {
        flex-direction: row;
        justify-content: center;
        gap: 30px;
    }
}

.service-item {
    display: flex;
    align-items: center;
    width: 200px;
    height: 60px;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    padding: 0 15px;
}

.service-item:hover {
    background: transparent;
    transform: translateY(-3px);
}

.service-item:hover .service-arrow {
    transform: translateX(5px);
    color: var(--hover-color);
}

.service-item:hover .service-details h3 {
    color: var(--hover-color);
}

.service-item:hover .service-icon {
    transform: scale(1.1);
}

.service-icon {
    width: 24px;
    height: 24px;
    border-radius: 12px;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    color: var(--icon-color-light);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

body.dark-mode .service-icon {
    color: var(--icon-color-dark);
}

.service-details {
    flex-grow: 1;
    text-align: left;
}

.service-details h3 {
    font-size: 16px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.service-arrow {
    color: var(--arrow-color-light);
    margin-left: 10px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

body.dark-mode .service-arrow {
    color: var(--arrow-color-dark);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .welcome-card h1 {
        font-size: 24px;
    }
    
    .service-item {
        width: 180px;
        height: 55px;
    }
    
    .service-icon {
        width: 22px;
        height: 22px;
        margin-right: 12px;
    }
    
    .service-details h3 {
        font-size: 15px;
    }
}