/* Base Styles & Variables */
:root {
    --primary: #ff6b6b;
    --secondary: #4ecdc4;
    --dark: #292f36;
    --light: #f7fff7;
    --accent: #ff9f1c;
    --success: #2ecc71;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --neumorph: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f0f5f9;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Particle Background */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: var(--gradient);
    opacity: 0.3;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 2rem;
    animation: fadeIn 1s ease;
}

.logo {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    margin-bottom: 0.5rem;
    position: relative;
}

.logo-badge {
    position: absolute;
    top: -10px;
    right: -50px;
    font-size: 0.8rem;
    background: var(--accent);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    transform: rotate(15deg);
}

.tagline {
    color: #666;
    font-style: italic;
    margin-bottom: 1rem;
}

/* Section Titles */
.section-title {
    margin-bottom: 1.5rem;
    color: var(--dark);
    font-size: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 50px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

/* Gender Selection */
.gender-selection {
    margin-bottom: 2rem;
    animation: fadeIn 1s ease 0.2s both;
}

.gender-options {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.gender-option {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    background: white;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid transparent;
}

.gender-option:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.gender-option.active {
    border-color: var(--primary);
    background: rgba(255, 107, 107, 0.1);
}

.gender-option i {
    font-size: 1.2rem;
}

/* Form Styles */
.calculator-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    animation: fadeIn 1s ease 0.4s both;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #555;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #ddd;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2);
}

.form-group select,
.form-group input[type="range"] {
    width: 100%;
}

select {
    padding: 0.8rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #ddd;
    background: white;
    font-size: 1rem;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2);
}

.range-container {
    position: relative;
    padding-top: 1.5rem;
}

input[type="range"] {
    -webkit-appearance: none;
    height: 8px;
    background: #ddd;
    border-radius: 4px;
    outline: none;
}

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

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 5px rgba(255, 107, 107, 0.2);
}

.range-value {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Button Styles */
.btn-gradient {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #ff7b7b, #53d8d0);
}

.btn-gradient:active {
    transform: translateY(1px);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: rgba(255, 107, 107, 0.1);
    transform: translateY(-3px);
}

/* Results Section */
.results-section {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    animation: fadeIn 1s ease;
}

.results-header {
    text-align: center;
    margin-bottom: 2rem;
}

.result-value {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.currency {
    font-size: 2rem;
    vertical-align: top;
    margin-right: 0.2rem;
}

.result-description {
    color: #666;
    font-style: italic;
}

.results-breakdown {
    margin: 2rem 0;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    background: #f9f9f9;
}

.breakdown-item.positive {
    border-left: 4px solid var(--success);
}

.breakdown-item.negative {
    border-left: 4px solid var(--danger);
}

.breakdown-item.neutral {
    border-left: 4px solid var(--info);
}

.breakdown-label {
    font-weight: 600;
}

.breakdown-value {
    font-weight: 700;
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.results-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    color: #666;
}

.results-footer i {
    color: var(--info);
    margin-right: 0.5rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.loading-content {
    text-align: center;
    max-width: 300px;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(78, 205, 196, 0.2);
    border-radius: 50%;
    border-top-color: var(--secondary);
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

.loading-icons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.loading-icons i {
    font-size: 1.5rem;
    color: var(--primary);
    animation: bounce 2s infinite;
}

.loading-icons i:nth-child(2) {
    animation-delay: 0.2s;
    color: var(--accent);
}

.loading-icons i:nth-child(3) {
    animation-delay: 0.4s;
    color: var(--success);
}

.loading-icons i:nth-child(4) {
    animation-delay: 0.6s;
    color: var(--info);
}

/* Disclaimer Modal */
.disclaimer-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.disclaimer-modal.active {
    opacity: 1;
    pointer-events: all;
}

.disclaimer-content {
    background: white;
    max-width: 500px;
    width: 90%;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    text-align: center;
    transform: translateY(20px);
    transition: var(--transition);
}

.disclaimer-modal.active .disclaimer-content {
    transform: translateY(0);
}

.disclaimer-header {
    margin-bottom: 1.5rem;
}

.disclaimer-header i {
    font-size: 3rem;
    color: var(--warning);
    margin-bottom: 1rem;
}

.disclaimer-header h3 {
    font-size: 1.5rem;
    color: var(--dark);
}

.disclaimer-body p {
    margin-bottom: 1rem;
    color: #555;
}

.disclaimer-footer {
    margin-top: 2rem;
}

/* Certificate Section */
.certificate-section {
    background: #f9f9f9;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    animation: fadeIn 1s ease;
}

.certificate {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.certificate-border {
    border: 2px solid var(--primary);
    padding: 2rem;
    position: relative;
    border-radius: 8px;
}

.certificate-border::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px dashed var(--primary);
    border-radius: 4px;
    pointer-events: none;
}

.certificate-header {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
}

.certificate-header h1 {
    font-size: 1.8rem;
    color: var(--dark);
    margin-bottom: 1rem;
    font-weight: 700;
}

.certificate-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 1.5rem;
    font-weight: 700;
}

.certificate-logo i {
    font-size: 1.8rem;
}

.certificate-body {
    text-align: center;
    margin-bottom: 2rem;
}

.certificate-body h2 {
    font-size: 2rem;
    margin: 1rem 0;
    color: var(--primary);
    padding: 0.5rem 1rem;
    display: inline-block;
    border-bottom: 2px solid var(--secondary);
}

.certificate-value {
    margin: 2rem 0;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(78, 205, 196, 0.1));
    border-radius: var(--border-radius);
    display: inline-block;
}

.value-display {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 1rem 0;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.value-label {
    color: #666;
    font-style: italic;
}

.certificate-details {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.detail {
    background: #f5f5f5;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    min-width: 150px;
}

.detail span {
    display: block;
    color: #666;
    font-size: 0.9rem;
}

.detail strong {
    display: block;
    font-size: 1.2rem;
    margin-top: 0.5rem;
    color: var(--dark);
}

.certificate-date {
    color: #666;
    margin-top: 1rem;
}

.certificate-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

.signature {
    text-align: center;
}

.signature-line {
    width: 150px;
    height: 2px;
    background: var(--dark);
    margin: 0 auto 0.5rem;
}

.qr-code {
    text-align: center;
}

.qr-code i {
    font-size: 3rem;
    color: var(--dark);
}

.qr-code p {
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

.certificate-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn-instagram {
    background: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D, #F56040, #F77737, #FCAF45, #FFDC80);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-instagram:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Certificate Animation */
@keyframes certificateIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.certificate-section.active {
    display: block;
    animation: certificateIn 0.5s ease;
}

/* Share Instructions Modal */
.share-instructions-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    color: white;
    text-align: center;
    padding: 2rem;
}

.share-instructions-modal p {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.share-instructions-modal button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    margin-top: 1rem;
    cursor: pointer;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: #666;
    font-size: 0.9rem;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

footer i {
    color: var(--primary);
}

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

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .calculator-form,
    .results-section,
    .certificate-section {
        padding: 1.5rem;
    }

    .gender-options {
        flex-direction: column;
    }

    .results-actions,
    .certificate-actions {
        flex-direction: column;
    }

    .btn-gradient,
    .btn-outline,
    .btn-instagram {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 2rem;
    }

    .logo-badge {
        font-size: 0.7rem;
        right: -40px;
    }

    .result-value,
    .value-display {
        font-size: 2.5rem;
    }

    .certificate-header h1 {
        font-size: 1.5rem;
    }

    .certificate-body h2 {
        font-size: 1.5rem;
    }

    .certificate-details {
        flex-direction: column;
        gap: 1rem;
    }

    .detail {
        width: 100%;
    }
}