:root {
    --primary-color: #6c5ce7;
    --primary-light: #a29bfe;
    --secondary-color: #00b894;
    --secondary-light: #55efc4;
    --bg-color: #f0f0f5;
    --card-bg: #ffffff;
    --text-main: #2d3436;
    --text-sub: #636e72;
    --error-color: #e74c3c;
    --success-color: #00b894;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: transparent;
    margin: 0;
    padding: 20px;
    color: var(--text-main);
    overflow-x: hidden;
}

.status-dot {
    height: 10px;
    width: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
    animation: pulse 2s ease infinite;
}

/* SUCCESS */
.status-dot.success {
    background-color: #00b894; /* xanh lá */
}

/* INFO */
.status-dot.info {
    background-color: #0984e3; /* xanh dương */
}

/* WARNING */
.status-dot.warning {
    background-color: #fdcb6e; /* vàng */
}

/* ERROR */
.status-dot.error {
    background-color: #d63031; /* đỏ */
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.4);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(0, 0, 0, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
    }
}


@media (max-width: 600px) {
    .welcome-header h1 {
        font-size: 1.8em;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .dev-footer {
        flex-direction: column;
        text-align: center;
    }
}


/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    top: 10%;
    left: 10%;
    font-size: 80px;
    color: var(--primary-color);
    animation-delay: 0s;
}

.shape-2 {
    top: 60%;
    right: 15%;
    font-size: 100px;
    color: var(--secondary-color);
    animation-delay: 2s;
}

.shape-3 {
    bottom: 20%;
    left: 20%;
    font-size: 60px;
    color: var(--primary-light);
    animation-delay: 4s;
}
/* container */
.custom-container {
    position: relative;
    z-index: 1;
    max-width: 450px;
    width: 100%;
    margin: 0 20px;
    animation: slideUp 0.8s ease-out 0.3s both;
}

/* Animations */
@keyframes fadeInPage {
    to {
        opacity: 1;
    }
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-30px) rotate(5deg);
    }
    50% {
        transform: translateY(-50px) rotate(-5deg);
    }
    75% {
        transform: translateY(-30px) rotate(3deg);
    }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}