/* Tube Progress Indicator Styling */

:root {
    /* Color variables */
    --color-primary: #4B83F6;
    --color-secondary: #818CF8;
    --color-success: #22C55E;
    --color-warning: #F97316;
    --color-danger: #EF4444;
    --color-info: #0EA5E9;
    --color-neutral: #94A3B8;
    
    /* Gradient variations */
    --gradient-primary: linear-gradient(135deg, #4B83F6, #818CF8);
    --gradient-success: linear-gradient(135deg, #22C55E, #10B981);
    --gradient-warning: linear-gradient(135deg, #F97316, #FB923C);
    --gradient-danger: linear-gradient(135deg, #EF4444, #F87171);
    
    /* Container dimensions */
    --tube-height: 200px;
    --tube-width: 110px;
    --tube-border-radius: 999px;
    --tube-bottom-radius: 55px;
    /* Default text contrast (dark text for light backgrounds) */
    --text-contrast: #111827;
}

/* Dark mode variables */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: #60a5fa;
        --color-secondary: #a5b4fc;
        --color-success: #34d399;
        --color-warning: #fb923c;
        --color-danger: #f87171;
        --color-info: #38bdf8;
        --color-neutral: #9ca3af;
        --text-contrast: #E5E7EB; /* Adjusted for dark mode */
    }
}

/* Container styles */
.tube-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background-color: rgba(255,255,255,0.75);
    backdrop-filter: blur(12px) saturate(1.1);
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    min-height: 300px;
    justify-content: center;
}

.tube-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

/* Tube progress element */
.tube-progress {
    position: relative;
    width: var(--tube-width);
    height: var(--tube-height);
    background: #f8fafc;
    border-radius: var(--tube-border-radius);
    overflow: hidden;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.05),
        0 0 0 1px rgba(0, 0, 0, 0.03);
    margin-bottom: 1rem;
    max-width: 100%;
}

/* Liquid fill effect */
.tube-liquid {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--color-primary);
    transition: height 1.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    border-radius: 0 0 var(--tube-bottom-radius) var(--tube-bottom-radius);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1) inset;
    overflow: hidden;
}

/* Wave effect */
.tube-wave {
    position: absolute;
    top: -15px;
    left: 0;
    width: 200%;
    height: 30px;
    background: inherit;
    border-radius: 100%;
    opacity: 0.8;
    transition: transform 0.5s ease-out;
}

/* Animation keyframes */
@keyframes tubeWave {
    0%, 100% { transform: translateX(-50%) rotate(0); }
    25% { transform: translateX(-55%) rotate(1deg); }
    50% { transform: translateX(-50%) rotate(0); }
    75% { transform: translateX(-45%) rotate(-1deg); }
}

@keyframes tubeFill {
    0% { height: 0%; }
    20% { height: 10%; }
    50% { height: 50%; }
    70% { height: 80%; }
    100% { height: var(--fill-height, 50%); }
}

@keyframes tubeFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Apply animations */
.tube-liquid {
    animation: tubeFill 2s ease-out forwards;
}

.tube-wave {
        animation: tubeWave 3s linear infinite;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .tube-liquid { transition: none; animation: none; }
    .tube-wave { animation: none; }
}

/* Label styling */
.tube-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%; /* Slightly narrower to avoid edge cutoff */
    text-align: center;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /* Allow per-tube override via --tube-text-color, fallback to theme-level --text-contrast */
    color: var(--tube-text-color, var(--text-contrast)); /* Contrast with liquid */
    padding: 0.25rem;
    box-sizing: border-box;
}

.tube-title {
    font-size: 0.75rem; /* Smaller size */
    font-weight: 600;
    color: var(--tube-text-color, var(--text-contrast));
    margin-bottom: 0.5rem; /* Slightly increased spacing */
    /* Subtle shadow for light background; darker variants set in dark theme */
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    white-space: nowrap;
    max-height: 1.2em; /* Ensure it doesn't take too much vertical space */
}

.tube-percentage {
    font-size: 1.6rem; /* Reduced size for better fit */
    font-weight: 700;
    color: var(--tube-text-color, var(--text-contrast));
    margin: 0.25rem 0; /* Adjust spacing */
    line-height: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.tube-value {
    font-size: 0.65rem; /* Even smaller for better fit */
    font-weight: 500;
    color: var(--tube-text-color, var(--text-contrast));
    margin-bottom: 0.25rem; /* Reduce spacing */
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    max-height: 1.2em; /* Ensure it doesn't take too much vertical space */
}

.tube-gap {
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: 0.75rem;
    color: var(--tube-text-color, var(--text-contrast));
    animation: tubeFadeIn 0.8s ease-in forwards;
    animation-delay: 0.5s;
    opacity: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);

}



/* Stronger shadows for dark theme to improve readability over bright fills */
[data-theme="dark"] .tube-title,
[data-theme="dark"] .tube-percentage,
[data-theme="dark"] .tube-value,
[data-theme="dark"] .tube-gap {
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.7), 0 0 1px rgba(255, 255, 255, 0.4);
}

/* Tube color variations */
.tube-primary .tube-liquid {
    background: var(--color-primary);
}

.tube-success .tube-liquid {
    background: var(--color-success);
}

.tube-warning .tube-liquid {
    background: var(--color-warning);
}

.tube-danger .tube-liquid {
    background: var(--color-danger);
}

/* Tube reflections for realism */
.tube-progress::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5px;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, rgba(255,255,255,0.3), rgba(255,255,255,0));
    border-radius: var(--tube-border-radius) 0 0 var(--tube-border-radius);
    z-index: 5;
    pointer-events: none;
}

.tube-progress::after {
    content: '';
    position: absolute;
    top: 0;
    right: 5px;
    width: 20px;
    height: 100%;
    background: linear-gradient(270deg, rgba(0,0,0,0.05), rgba(0,0,0,0));
    border-radius: 0 var(--tube-border-radius) var(--tube-border-radius) 0;
    z-index: 5;
    pointer-events: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    :root {
        --tube-height: 160px;
        --tube-width: 90px;
        --tube-bottom-radius: 45px;
    }
    
    .tube-percentage {
        font-size: 1.8rem;
    }
    
    .tube-value {
        font-size: 0.8rem;
    }
    
    .tube-gap {
        font-size: 1.1rem;
    }
}

/* Print optimization */
@media print {
    .tube-container {
        break-inside: avoid;
        box-shadow: none;
    }
    
    .tube-progress::before,
    .tube-progress::after {
        display: none;
    }
}