/* 
 * Optimal Vitalife - Premium Gym Aesthetics
 * Dark modern theme with vibrant accents 
 */

:root {
    --ov-bg: #121212;
    --ov-bg-card: #1e1e1e;
    --ov-bg-input: #2a2a2a;
    --ov-text-main: #ffffff;
    --ov-text-muted: #a0a0a0;
    --ov-btn-text: #17202c;
    /* Default button text color */
    --ov-accent: #ccff00;
    /* Neon Lime/Yellow a very gym-like color */
    --ov-accent-hover: #b3e600;
    --ov-border: #333333;
    --ov-card-radius: 16px;
    --ov-input-radius: 8px;
    --ov-transition: all 0.3s ease;
    --ov-font: inherit;
}

.ov-calculator-wrapper {
    font-family: var(--ov-font);
    background-color: var(--ov-bg);
    color: var(--ov-text-main);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    max-width: 900px;
    margin: 0 auto;
    box-sizing: border-box;
}

.ov-calculator-wrapper * {
    box-sizing: border-box;
}

/* Header */
.ov-header {
    text-align: center;
    margin-bottom: 40px;
}

.ov-title {
    font-size: 32px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0 0 10px 0;
    background: linear-gradient(90deg, #fff, var(--ov-accent));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ov-subtitle {
    color: var(--ov-text-muted);
    font-size: 16px;
    margin: 0;
}

/* Form Styles */
.ov-form-container {
    background-color: var(--ov-bg-card);
    border-radius: var(--ov-card-radius);
    border: 1px solid var(--ov-border);
}

.ov-form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.ov-form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ov-full-width {
    flex: 100%;
    margin-bottom: 30px;
}

.ov-form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--ov-text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ov-form-group input[type="number"],
.ov-form-group select {
    background-color: var(--ov-bg-input);
    color: var(--ov-text-main);
    border: 1px solid var(--ov-border);
    padding: 14px 16px;
    border-radius: var(--ov-input-radius);
    font-size: 16px;
    transition: var(--ov-transition);
    width: 100%;
    font-family: inherit;
    outline: none;
}

.ov-form-group input[type="number"]:focus,
.ov-form-group select:focus {
    border-color: var(--ov-accent);
    box-shadow: 0 0 0 3px rgba(231, 255, 137, 0.1);
}

/* Radio Buttons */
.ov-radio-group {
    display: flex;
    gap: 15px;
    height: 100%;
}

.ov-radio-label {
    flex: 1;
    background-color: var(--ov-bg-input);
    border: 1px solid var(--ov-border);
    border-radius: var(--ov-input-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    cursor: pointer;
    transition: var(--ov-transition);
    font-weight: 500;
    color: var(--ov-text-muted);
    margin-bottom: 0 !important;
}

.ov-radio-label:has(input:checked) {
    background-color: rgba(231, 255, 137, 0.1);
    /* Lime with opacity */
    border-color: var(--ov-accent);
    color: var(--ov-text-main);
}

.ov-radio-label input {
    display: none;
}

/* Submit Button */
.ov-submit-btn {
    width: 100%;
    background-color: var(--ov-accent);
    color: var(--ov-btn-text);
    /* Text color dark to contrast with lime */
    border: none;
    padding: 16px;
    border-radius: var(--ov-input-radius);
    font-size: 16px;
    font-weight: 800;
    /* Bolder button text */
    cursor: pointer;
    transition: var(--ov-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ov-submit-btn svg {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.ov-submit-btn:hover {
    background-color: var(--ov-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(231, 255, 137, 0.2);
}

.ov-submit-btn:hover svg {
    transform: translateX(5px);
}

/* Results Area */
.ov-results-container {
    text-align: center;
}

.ov-results-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--ov-text-main);
    border-bottom: 2px solid var(--ov-border);
    padding-bottom: 15px;
    display: inline-block;
}

/* Cards Grid */
.ov-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    /* Slightly smaller min width for 8 cards */
    gap: 20px;
    margin-bottom: 30px;
}

.ov-card {
    background-color: var(--ov-bg-card);
    border: 1px solid var(--ov-border);
    border-radius: var(--ov-card-radius);
    padding: 30px 20px;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.ov-card.ov-animate-in {
    opacity: 1;
    transform: translateY(0);
}

.ov-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--ov-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.ov-card:hover::before {
    transform: scaleX(1);
}

.ov-card:hover {
    transform: translateY(-5px);
    border-color: #444;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.ov-card-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 15px;
    background-color: var(--ov-icon-bg, rgba(231, 255, 137, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ov-icon-color, var(--ov-accent));
}

.ov-card-icon svg {
    width: 24px;
    height: 24px;
}

.ov-card h4 {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: var(--ov-text-muted);
    font-weight: 600;
}

.ov-val {
    font-size: 32px;
    font-weight: 800;
    color: var(--ov-text-main);
    margin-bottom: 10px;
}

.ov-val small {
    font-size: 16px;
    color: var(--ov-text-muted);
    font-weight: 500;
}

.ov-desc {
    font-size: 13px;
    color: var(--ov-text-muted);
    line-height: 1.4;
}

/* Secondary Button */
.ov-secondary-btn {
    background: transparent;
    border: 1px solid var(--ov-border);
    color: var(--ov-text-main);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ov-transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ov-secondary-btn:hover {
    border-color: var(--ov-text-muted);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .ov-calculator-wrapper {
        padding: 20px;
        border-radius: 16px;
    }

    .ov-form-row {
        flex-direction: column;
        gap: 15px;
    }

    .ov-title {
        font-size: 24px;
    }
}