/**
 * BMI Calculator Styles
 * DevWharf Theme Component
 */

/* ========================================
   BMI Calculator Card
   ======================================== */

.bmi-calculator-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 180px);
    padding: 40px 20px;
}

.calculator-card {
    background: rgba(26, 26, 36, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--dw-border);
    border-radius: 16px;
    padding: 50px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.6s ease-out;
}

.calculator-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.15);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.calculator-card h1 {
    color: var(--dw-text-primary);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-align: center;
}

.calculator-card p.description {
    color: var(--dw-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
    text-align: center;
}

/* ========================================
   Form Elements
   ======================================== */

.bmi-form .form-group {
    margin-bottom: 25px;
}

.bmi-form .form-group label {
    display: block;
    color: var(--dw-text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 1rem;
}

.bmi-form .form-group input {
    width: 100%;
    padding: 14px 18px;
    background: var(--dw-bg-secondary);
    border: 1px solid var(--dw-border);
    border-radius: 8px;
    color: var(--dw-text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.bmi-form .form-group input:focus {
    outline: none;
    border-color: var(--dw-accent);
    box-shadow: 0 0 0 3px var(--dw-accent-glow);
}

.bmi-form .form-group input::placeholder {
    color: var(--dw-text-secondary);
    opacity: 0.7;
}

.bmi-form button[type="submit"] {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #e0e0e8;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.bmi-form button[type="submit"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.bmi-form button[type="submit"]:hover::before {
    left: 100%;
}

.bmi-form button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    background: linear-gradient(135deg, #1f1f3a 0%, #1b2a4a 50%, #144070 100%);
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.bmi-form button[type="submit"]:active {
    transform: translateY(0);
}

/* ========================================
   Result Section
   ======================================== */

.bmi-result {
    margin-top: 30px;
    padding: 25px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--dw-accent);
    border-radius: 12px;
    text-align: center;
    animation: glowPulse 2s ease-in-out infinite alternate;
}

@keyframes glowPulse {
    from { box-shadow: 0 0 5px rgba(99, 102, 241, 0.3); }
    to { box-shadow: 0 0 20px rgba(99, 102, 241, 0.5); }
}

.bmi-result .result-label {
    color: var(--dw-text-secondary);
    font-size: 1rem;
    margin-bottom: 8px;
}

.bmi-result .result-value {
    color: var(--dw-accent-hover);
    font-size: 2.5rem;
    font-weight: 700;
}

.bmi-result .result-category {
    color: var(--dw-text-primary);
    font-size: 1.1rem;
    margin-top: 10px;
    font-weight: 500;
}

/* BMI Category Colors */
.category-underweight { color: #60a5fa !important; font-weight: 600; }
.category-normal { color: #34d399 !important; font-weight: 600; }
.category-overweight { color: #fbbf24 !important; font-weight: 600; }
.category-obese { color: #f87171 !important; font-weight: 600; }

/* Error State */
.bmi-result.error {
    border-color: #f87171;
    background: rgba(248, 113, 113, 0.1);
}

.bmi-result.error .result-label {
    color: #f87171;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 600px) {
    .calculator-card {
        padding: 30px 25px;
    }

    .calculator-card h1 {
        font-size: 1.6rem;
    }

    .bmi-result .result-value {
        font-size: 2rem;
    }
}