:root {
    --primary-color: #9c1a1c;  /* Dark red color from Omniathlete site */
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --light-gray: #f1f1f1;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --transition-speed: 0.3s;
    --green-color: #198754;
    --yellow-color: #ffc107;
    --red-color: #dc3545;
    --blue-color: #0d6efd;
    --gray-color: #6c757d;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background-color: #f8f9fa;
    line-height: 1.6;
    padding: 20px 0;
}

.app-container {
    max-width: 100%;
    padding: 0 15px;
}

@media (min-width: 992px) {
    .app-container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .app-container {
        max-width: 1140px;
    }
}

.card {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin-bottom: 20px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all var(--transition-speed);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #7a1516;
    border-color: #7a1516;
    box-shadow: 0 0 0 0.25rem rgba(156, 26, 28, 0.25);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-lg {
    padding: 12px 20px;
    font-weight: 500;
}

/* Site Header */
.site-header {
    background-color: white;
    padding: 12px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.back-to-site {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.back-to-site:hover {
    color: #7a1516;
    text-decoration: none;
}

.back-arrow {
    margin-right: 6px;
    font-size: 18px;
}

/* Navigation */
.nav-tabs-container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 5px;
    box-shadow: var(--box-shadow);
}

.nav-tabs {
    border-bottom: none;
}

.nav-tabs .nav-link {
    color: var(--text-color);
    border: none;
    padding: 10px 15px;
    font-weight: 500;
    border-radius: var(--border-radius);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: rgba(156, 26, 28, 0.1);
    border: none;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    border: none;
    background-color: rgba(156, 26, 28, 0.05);
}

/* Results Summary */
#results-summary .badge {
    margin-top: 2px;
}

/* Test Steps */
.test-step {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.test-step.active {
    display: block;
}

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

/* Instructions Box */
.instructions-box {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 20px;
}

.instructions-box ol {
    padding-left: 20px;
}

.instructions-box li {
    margin-bottom: 8px;
}

.instructions-box li:last-child {
    margin-bottom: 0;
}

/* Icon Container */
.icon-container {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(156, 26, 28, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: var(--primary-color);
}

/* Timer Display */
.timer-display {
    padding: 30px 0;
    margin: 20px 0;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    position: relative;
}

#timer-seconds {
    font-weight: 700;
    color: var(--primary-color);
}

.timer-unit {
    display: block;
    font-size: 16px;
    color: #777;
    margin-top: -10px;
}

/* Results Screen */
.result-time {
    margin: 15px 0;
}

#result-seconds {
    font-weight: 700;
    color: var(--primary-color);
}

.result-category {
    margin-bottom: 20px;
}

.badge {
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
}

/* Badge colors for results */
.badge-poor {
    background-color: var(--red-color);
    color: white;
}

.badge-average {
    background-color: var(--yellow-color);
    color: #212529;
}

.badge-intermediate {
    background-color: var(--gray-color);
    color: white;
}

.badge-advanced {
    background-color: var(--green-color);
    color: white;
}

.badge-elite {
    background-color: var(--blue-color);
    color: white;
}

/* Result explanation */
.result-explanation, .recommendation-box {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

/* Breathing pattern visualization */
.breathing-pattern {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 15px 0;
}

.breathing-visual {
    width: 100%;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.breathing-animation {
    position: relative;
    width: 100px;
    height: 100px;
}

.breathing-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(156, 26, 28, 0.2);
    animation: breathe 8s infinite ease-in-out;
}

/* Default breathing animation */
@keyframes breathe {
    0%, 100% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
}

/* Box Breathing (4-4-4-4) */
@keyframes boxBreathing {
    /* Inhale - top side - increasing size */
    0% {
        transform: translate(-50%, -50%) translate(0, -35px) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    6.25% {
        transform: translate(-50%, -50%) translate(8.75px, -35px) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    12.5% {
        transform: translate(-50%, -50%) translate(17.5px, -35px) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    18.75% {
        transform: translate(-50%, -50%) translate(26.25px, -35px) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    
    /* Hold breath - right side - constant size */
    25% {
        transform: translate(-50%, -50%) translate(35px, -35px) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    31.25% {
        transform: translate(-50%, -50%) translate(35px, -26.25px) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    37.5% {
        transform: translate(-50%, -50%) translate(35px, -17.5px) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    43.75% {
        transform: translate(-50%, -50%) translate(35px, -8.75px) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Exhale - bottom side - decreasing size */
    50% {
        transform: translate(-50%, -50%) translate(35px, 0) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    56.25% {
        transform: translate(-50%, -50%) translate(26.25px, 0) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    62.5% {
        transform: translate(-50%, -50%) translate(17.5px, 0) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    68.75% {
        transform: translate(-50%, -50%) translate(8.75px, 0) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    
    /* Hold breath - left side - constant size */
    75% {
        transform: translate(-50%, -50%) translate(0, 0) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    81.25% {
        transform: translate(-50%, -50%) translate(0, -8.75px) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    87.5% {
        transform: translate(-50%, -50%) translate(0, -17.5px) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    93.75% {
        transform: translate(-50%, -50%) translate(0, -26.25px) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    100% {
        transform: translate(-50%, -50%) translate(0, -35px) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
}

/* Box breathing square path guide */
.box-breathing-guide {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90px;
    height: 90px;
    border: 2px dashed rgba(156, 26, 28, 0.3);
    border-radius: 4px;
    pointer-events: none; /* Allow clicks to pass through */
}

/* Extended Exhale (4-8) */
@keyframes extendedExhale {
    /* Inhale - 4s (33.33% of 12s total) */
    0% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    11.11% {
        transform: translate(-50%, -50%) scale(0.8);
        background-color: rgba(156, 26, 28, 0.27);
    }
    22.22% {
        transform: translate(-50%, -50%) scale(1.0);
        background-color: rgba(156, 26, 28, 0.34);
    }
    33.33% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Exhale - 8s (66.67% of 12s total) */
    33.33% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    44.44% {
        transform: translate(-50%, -50%) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    55.55% {
        transform: translate(-50%, -50%) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    66.66% {
        transform: translate(-50%, -50%) scale(0.8);
        background-color: rgba(156, 26, 28, 0.27);
    }
    77.77% {
        transform: translate(-50%, -50%) scale(0.7);
        background-color: rgba(156, 26, 28, 0.24);
    }
    88.88% {
        transform: translate(-50%, -50%) scale(0.65);
        background-color: rgba(156, 26, 28, 0.22);
    }
    100% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
}

/* Balanced Breathing (5-5) */
@keyframes balancedBreathing {
    /* Inhale - 5s (50% of 10s total) */
    0% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    12.5% {
        transform: translate(-50%, -50%) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    25% {
        transform: translate(-50%, -50%) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    37.5% {
        transform: translate(-50%, -50%) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Exhale - 5s (50% of 10s total) */
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    62.5% {
        transform: translate(-50%, -50%) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    75% {
        transform: translate(-50%, -50%) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    87.5% {
        transform: translate(-50%, -50%) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    100% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
}

/* Advanced Cadence (6-8) */
@keyframes advancedCadence {
    /* Inhale - 6s (42.86% of 14s total) */
    0% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    10.71% {
        transform: translate(-50%, -50%) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    21.43% {
        transform: translate(-50%, -50%) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    32.14% {
        transform: translate(-50%, -50%) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    42.86% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Exhale - 8s (57.14% of 14s total) */
    42.86% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    53.57% {
        transform: translate(-50%, -50%) scale(1.05);
        background-color: rgba(156, 26, 28, 0.35);
    }
    64.28% {
        transform: translate(-50%, -50%) scale(0.9);
        background-color: rgba(156, 26, 28, 0.3);
    }
    75% {
        transform: translate(-50%, -50%) scale(0.75);
        background-color: rgba(156, 26, 28, 0.25);
    }
    85.71% {
        transform: translate(-50%, -50%) scale(0.65);
        background-color: rgba(156, 26, 28, 0.22);
    }
    100% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
}

/* Stimulating Breathing */
@keyframes stimulatingBreathing {
    /* Quick inhale - 0.5s */
    0% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    10% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Quick exhale - 0.5s */
    20% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    30% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    
    /* Repeat cycles */
    40% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    60% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    70% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    80% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
    90% {
        transform: translate(-50%, -50%) scale(1.2);
        background-color: rgba(156, 26, 28, 0.4);
    }
    100% {
        transform: translate(-50%, -50%) scale(0.6);
        background-color: rgba(156, 26, 28, 0.2);
    }
}