/* ===========================
   Calculator Page Styles
   =========================== */

/* Calculator Hero */
.calculator-hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-teal) 100%);
    background-size: 400% 400%;
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: heroGradient 15s ease infinite;
}

.calculator-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="calc-grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23calc-grid)"/></svg>');
    opacity: 0.3;
}

.calculator-hero .hero-text {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.calculator-hero .hero-title {
    color: var(--white);
    margin-bottom: 20px;
}

.calculator-hero .hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
}

/* Calculator Tabs */
.calculator-tabs-section {
    background: var(--white);
    padding: 30px 0;
    border-bottom: 2px solid var(--gray-200);
    position: sticky;
    top: 70px;
    z-index: 999;
    box-shadow: var(--shadow-sm);
}

.calculator-tabs {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: 2px solid var(--gray-300);
    border-radius: 25px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(26, 58, 82, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.tab-btn:hover::before {
    width: 300px;
    height: 300px;
}

.tab-btn:hover {
    border-color: var(--primary-navy);
    color: var(--primary-navy);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 15px rgba(26, 58, 82, 0.2);
}

.tab-btn.active {
    background: var(--primary-navy);
    border-color: var(--primary-navy);
    color: var(--white);
    animation: tabPulse 2s ease-in-out infinite;
}

@keyframes tabPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(26, 58, 82, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(26, 58, 82, 0);
    }
}

/* Calculator Grid */
.calculator-grid-section {
    padding: 60px 0 80px;
    background: var(--light-bg);
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.calculator-card {
    background: var(--white);
    border-radius: 12px;
    padding: 35px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.calculator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(201, 169, 97, 0.1), transparent);
    transition: left 0.5s ease;
}

.calculator-card:hover::before {
    left: 100%;
}

.calculator-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px rgba(26, 58, 82, 0.2);
    border-color: var(--accent-gold);
}

.calculator-card.hidden {
    display: none;
}

.calc-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: inline-block;
    transition: all var(--transition-base);
}

.calculator-card:hover .calc-icon {
    transform: scale(1.2) rotateY(360deg);
    animation: iconBounce 0.6s ease;
}

@keyframes iconBounce {
    0%, 100% { transform: scale(1.2) translateY(0); }
    50% { transform: scale(1.3) translateY(-10px); }
}

.calculator-card h3 {
    color: var(--primary-navy);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.calculator-card p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    flex-grow: 1;
    line-height: 1.6;
}

.calc-open-btn {
    width: 100%;
}

/* Calculator Modal */
.calculator-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.calculator-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: 16px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-200);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: var(--primary-navy);
    color: var(--white);
    transform: rotate(90deg);
}

#calculatorContent {
    padding: 50px 40px 40px;
}

/* Calculator Form Styles */
.calc-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.calc-inputs,
.calc-results {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 12px;
}

.calc-header {
    margin-bottom: 30px;
}

.calc-header h2 {
    color: var(--primary-navy);
    margin-bottom: 10px;
}

.calc-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.calc-form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.calc-form-group input,
.calc-form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

.calc-form-group input:focus,
.calc-form-group select:focus {
    outline: none;
    border-color: var(--primary-navy);
    box-shadow: 0 0 0 3px rgba(26, 58, 82, 0.1);
}

.calc-form-group .input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.calc-form-group .input-prefix {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    font-weight: 600;
}

.calc-form-group .input-group input {
    padding-left: 35px;
}

.calc-form-group .helper-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Range Slider */
.range-slider {
    width: 100%;
    margin: 15px 0;
}

.range-slider input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-navy);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.range-slider input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-gold);
    transform: scale(1.2);
}

.range-slider input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-navy);
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.range-value {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* Calculate Button */
.calc-submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-teal) 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.calc-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Results Section */
.calc-results {
    position: sticky;
    top: 20px;
}

.result-main {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-teal) 100%);
    background-size: 200% 200%;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 25px;
    color: var(--white);
    position: relative;
    overflow: hidden;
    animation: resultGlow 3s ease infinite;
}

@keyframes resultGlow {
    0%, 100% {
        background-position: 0% 50%;
        box-shadow: 0 8px 25px rgba(26, 58, 82, 0.3);
    }
    50% {
        background-position: 100% 50%;
        box-shadow: 0 8px 35px rgba(201, 169, 97, 0.4);
    }
}

.result-label {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 10px;
    animation: fadeInUp 0.5s ease;
}

.result-value {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 5px;
    animation: countUp 1s ease, pulse 2s ease-in-out infinite 1s;
}

@keyframes countUp {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.result-subtitle {
    font-size: 0.9rem;
    opacity: 0.85;
    animation: fadeInUp 0.5s ease 0.3s both;
}

.result-details {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
    opacity: 0;
    animation: slideInRight 0.5s ease forwards;
}

.result-item:nth-child(1) { animation-delay: 0.1s; }
.result-item:nth-child(2) { animation-delay: 0.2s; }
.result-item:nth-child(3) { animation-delay: 0.3s; }
.result-item:nth-child(4) { animation-delay: 0.4s; }
.result-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.result-item:last-child {
    border-bottom: none;
}

.result-item-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.result-item-value {
    font-weight: 600;
    color: var(--primary-navy);
    font-size: 1.05rem;
    transition: all var(--transition-base);
}

.result-item:hover .result-item-value {
    color: var(--accent-gold);
    transform: scale(1.1);
}

/* Chart Placeholder */
.result-chart {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
    text-align: center;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--gray-300);
}

.result-chart canvas {
    max-width: 100%;
}

/* Disclaimer */
.calc-disclaimer {
    margin-top: 30px;
    padding: 20px;
    background: var(--gray-100);
    border-left: 4px solid var(--accent-gold);
    border-radius: 8px;
}

.calc-disclaimer h4 {
    color: var(--primary-navy);
    margin-bottom: 10px;
    font-size: 1rem;
}

.calc-disclaimer p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Responsive */
@media (max-width: 968px) {
    .calc-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .calc-results {
        position: static;
    }

    .calculator-tabs-section {
        position: relative;
        top: 0;
    }

    #calculatorContent {
        padding: 40px 25px 25px;
    }
}

@media (max-width: 640px) {
    .calculator-hero {
        padding: 120px 0 60px;
    }

    .calculator-hero .hero-title {
        font-size: 2rem;
    }

    .calculator-grid {
        grid-template-columns: 1fr;
    }

    .tab-btn {
        font-size: 0.85rem;
        padding: 10px 20px;
    }

    .result-value {
        font-size: 2.25rem;
    }

    .calc-inputs,
    .calc-results {
        padding: 20px;
    }
}