/* =========================================
   AGE CALCULATOR CSS
   ========================================= */

:root {
    --age-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --age-gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --age-gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --age-bg-dark: #0f172a;
    --age-bg-card: #1e293b;
    --age-bg-input: #0f172a;
    --age-border: #334155;
    --age-border-light: #475569;
    --age-white: #ffffff;
    --age-gray: #cbd5e1;
    --age-muted: #94a3b8;
    --age-success: #22c55e;
    --age-warning: #eab308;
    --age-danger: #ef4444;
    --age-purple: #a855f7;
    --age-pink: #ec4899;
    --age-cyan: #06b6d4;
}

.age-calc-wrapper {
    background: linear-gradient(to bottom, var(--age-bg-dark), var(--age-bg-card));
    padding: 3rem 1.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--age-white);
    line-height: 1.6;
    min-height: 100vh;
}

.age-calc-wrapper * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.age-calc-container {
    max-width: 1000px;
    margin: 0 auto;
}

/* Header */
.age-calc-wrapper .calc-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.age-calc-wrapper .calc-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--age-white);
    margin-bottom: 1rem;
}

.age-calc-wrapper .calc-description {
    font-size: 1.1rem;
    color: var(--age-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* Card */
.age-calc-wrapper .calc-card {
    background: var(--age-bg-card);
    border: 1px solid var(--age-border);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* Form */
.age-calc-wrapper .age-form {
    margin-bottom: 2rem;
}

.age-calc-wrapper .form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.age-calc-wrapper .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.age-calc-wrapper .form-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--age-gray);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.age-calc-wrapper .form-label i {
    color: var(--age-purple);
}

.age-calc-wrapper .form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 1px solid var(--age-border-light);
    border-radius: 0.75rem;
    background: var(--age-bg-input);
    color: var(--age-white);
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.age-calc-wrapper .form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.15);
}

.age-calc-wrapper .form-hint {
    font-size: 0.8rem;
    color: var(--age-muted);
}

/* Buttons */
.age-calc-wrapper .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.age-calc-wrapper .btn-primary {
    background: var(--age-gradient);
    color: var(--age-white);
}

.age-calc-wrapper .btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102,126,234,0.4);
}

.age-calc-wrapper .btn-secondary {
    background: var(--age-border);
    color: var(--age-white);
}

.age-calc-wrapper .btn-secondary:hover {
    background: var(--age-border-light);
}

.age-calc-wrapper .controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.age-calc-wrapper .controls .btn {
    flex: 1;
    min-width: 150px;
}

/* Error Box */
.age-calc-wrapper .error-box {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.5);
    border-radius: 0.75rem;
    color: #f87171;
    margin-top: 1.5rem;
}

.age-calc-wrapper .error-box.show {
    display: flex;
}

/* Result Section */
.age-calc-wrapper .result-section {
    display: none;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--age-border);
}

.age-calc-wrapper .result-section.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* Main Age Display */
.age-calc-wrapper .age-main-result {
    background: var(--age-gradient);
    border-radius: 1.5rem;
    padding: 2.5rem 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.age-calc-wrapper .result-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--age-white);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.age-calc-wrapper .age-display {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.age-calc-wrapper .age-box {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 1.5rem 2.5rem;
    min-width: 140px;
}

.age-calc-wrapper .age-box .age-value {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--age-white);
    line-height: 1;
}

.age-calc-wrapper .age-box .age-label {
    font-size: 1rem;
    color: rgba(255,255,255,0.9);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Section Title */
.age-calc-wrapper .section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--age-white);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.age-calc-wrapper .section-title i {
    color: var(--age-purple);
}

/* Detailed Age */
.age-calc-wrapper .age-detailed {
    margin-bottom: 2rem;
}

.age-calc-wrapper .detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.age-calc-wrapper .detail-box {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--age-bg-input);
    border-radius: 0.75rem;
    border: 1px solid var(--age-border);
}

.age-calc-wrapper .detail-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--age-gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--age-white);
}

.age-calc-wrapper .detail-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.age-calc-wrapper .detail-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--age-white);
}

.age-calc-wrapper .detail-label {
    font-size: 0.8rem;
    color: var(--age-muted);
}

/* Birthday Info */
.age-calc-wrapper .birthday-info {
    margin-bottom: 2rem;
}

.age-calc-wrapper .birthday-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.age-calc-wrapper .birthday-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--age-bg-input);
    border-radius: 0.75rem;
    border: 1px solid var(--age-border);
}

.age-calc-wrapper .birthday-icon {
    width: 56px;
    height: 56px;
    background: var(--age-gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--age-white);
    margin-bottom: 1rem;
}

.age-calc-wrapper .birthday-label {
    font-size: 0.8rem;
    color: var(--age-muted);
    margin-bottom: 0.25rem;
}

.age-calc-wrapper .birthday-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--age-white);
}

/* Next Birthday Countdown */
.age-calc-wrapper .next-birthday {
    background: var(--age-bg-input);
    border: 1px solid var(--age-border);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
}

.age-calc-wrapper .countdown-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.age-calc-wrapper .countdown-box {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--age-gradient-3);
    border-radius: 0.75rem;
}

.age-calc-wrapper .countdown-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--age-white);
    line-height: 1;
}

.age-calc-wrapper .countdown-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.9);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.age-calc-wrapper .next-birthday-date {
    text-align: center;
    color: var(--age-gray);
    font-size: 0.95rem;
}

.age-calc-wrapper .next-birthday-date i {
    color: var(--age-cyan);
    margin-right: 0.5rem;
}

.age-calc-wrapper .next-birthday-full {
    font-weight: 600;
    color: var(--age-white);
}

/* Fun Facts */
.age-calc-wrapper .fun-facts {
    background: var(--age-bg-input);
    border: 1px solid var(--age-border);
    border-radius: 1rem;
    padding: 2rem;
}

.age-calc-wrapper .facts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.age-calc-wrapper .fact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--age-bg-card);
    border-radius: 0.75rem;
}

.age-calc-wrapper .fact-item i {
    color: var(--age-pink);
    font-size: 1.25rem;
    margin-top: 0.125rem;
}

.age-calc-wrapper .fact-item span {
    color: var(--age-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

.age-calc-wrapper .fact-item strong {
    color: var(--age-white);
}

/* Info Cards */
.age-calc-wrapper .info-card {
    background: var(--age-bg-card);
    border: 1px solid var(--age-border);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.age-calc-wrapper .info-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--age-white);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.age-calc-wrapper .info-title i {
    color: var(--age-purple);
}

/* Steps */
.age-calc-wrapper .steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.age-calc-wrapper .step-item {
    display: flex;
    gap: 1rem;
}

.age-calc-wrapper .step-number {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: var(--age-gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--age-white);
}

.age-calc-wrapper .step-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--age-white);
    margin-bottom: 0.25rem;
}

.age-calc-wrapper .step-content p {
    font-size: 0.9rem;
    color: var(--age-muted);
}

/* Milestones */
.age-calc-wrapper .milestones-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 0.75rem;
}

.age-calc-wrapper .milestone-item {
    text-align: center;
    padding: 1rem 0.5rem;
    background: var(--age-bg-input);
    border: 1px solid var(--age-border);
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.age-calc-wrapper .milestone-item:hover {
    border-color: var(--age-purple);
    transform: translateY(-2px);
}

.age-calc-wrapper .milestone-age {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--age-purple);
    margin-bottom: 0.25rem;
}

.age-calc-wrapper .milestone-text {
    font-size: 0.7rem;
    color: var(--age-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* FAQ */
.age-calc-wrapper .faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.age-calc-wrapper .faq-item {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--age-border);
}

.age-calc-wrapper .faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.age-calc-wrapper .faq-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--age-white);
    margin-bottom: 0.5rem;
}

.age-calc-wrapper .faq-item p {
    font-size: 0.95rem;
    color: var(--age-muted);
    line-height: 1.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .age-calc-wrapper .milestones-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

@media (max-width: 768px) {
    .age-calc-wrapper {
        padding: 2rem 1rem;
    }
    
    .age-calc-wrapper .calc-title {
        font-size: 2rem;
    }
    
    .age-calc-wrapper .calc-card {
        padding: 1.5rem;
    }
    
    .age-calc-wrapper .form-row {
        grid-template-columns: 1fr;
    }
    
    .age-calc-wrapper .controls {
        flex-direction: column;
    }
    
    .age-calc-wrapper .controls .btn {
        width: 100%;
    }
    
    .age-calc-wrapper .age-display {
        flex-direction: column;
        align-items: center;
    }
    
    .age-calc-wrapper .age-box {
        width: 100%;
        max-width: 200px;
    }
    
    .age-calc-wrapper .detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .age-calc-wrapper .birthday-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .age-calc-wrapper .countdown-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .age-calc-wrapper .facts-grid {
        grid-template-columns: 1fr;
    }
    
    .age-calc-wrapper .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .age-calc-wrapper .milestones-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .age-calc-wrapper .calc-title {
        font-size: 1.75rem;
    }
    
    .age-calc-wrapper .age-box .age-value {
        font-size: 2.5rem;
    }
    
    .age-calc-wrapper .detail-grid {
        grid-template-columns: 1fr;
    }
    
    .age-calc-wrapper .countdown-value {
        font-size: 2rem;
    }
    
    .age-calc-wrapper .info-title {
        font-size: 1.25rem;
    }
    
    .age-calc-wrapper