:root {
    --bg-color: #1a202c;
    --text-color: #e2e8f0;
    --card-bg: #2d3748;
    --accent-start: #4f46e5;
    --accent-end: #06b6d4;
    --border-radius: 12px;
    --input-bg: #1e293b;
    --input-focus-bg: #2a3a4e;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

header h1 {
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

header p {
    font-size: 1.2rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

.input-section {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 12px 15px;
    border: none;
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 16px;
    transition: box-shadow 0.3s, background-color 0.3s;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

input:focus, input:hover {
    outline: none;
    background-color: var(--input-focus-bg);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.5);
    color: var(--text-color);
}

.input-hint {
    display: block;
    margin-top: 5px;
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Fix for date picker and autofill */
input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.8;
    cursor: pointer;
}

input[type="date"]::-webkit-inner-spin-button, 
input[type="date"]::-webkit-calendar-picker-indicator {
    background: transparent;
}

/* For Firefox */
input[type="date"] {
    color-scheme: dark;
}

/* Improve date input field styling for better visibility */
input[type="date"] {
    background-color: var(--input-bg);
    color: var(--text-color);
    padding: 15px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    font-size: 1.1em;
    cursor: pointer;
    transition: all 0.3s ease;
}

input[type="date"]:focus, input[type="date"]:hover {
    background-color: var(--input-focus-bg);
    border-color: var(--accent-start);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.3);
}

/* Selection styles for date input fields */
input[type="date"]::-webkit-datetime-edit-fields-wrapper {
    background-color: transparent;
    color: var(--text-color);
    padding: 0 5px;
    font-weight: 500;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.9;
    cursor: pointer;
    transform: scale(1.2);
    margin-right: 5px;
}

/* Custom styling for date of birth label */
label[for="dateOfBirth"] {
    color: #e2e8f0;
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
}

/* Custom styling for date hint */
small.input-hint[for="dateOfBirth"] {
    color: #a0aec0;
    font-size: 0.9rem;
    margin-top: 8px;
    display: block;
}

/* Chrome, Safari, Edge customization */
input::-webkit-datetime-edit-fields-wrapper,
input::-webkit-datetime-edit-text,
input::-webkit-datetime-edit-month-field,
input::-webkit-datetime-edit-day-field,
input::-webkit-datetime-edit-year-field {
    color: var(--text-color);
}

input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-color);
    -webkit-box-shadow: 0 0 0px 1000px var(--input-focus-bg) inset;
    transition: background-color 5000s ease-in-out 0s;
}

.btn-submit {
    display: block;
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
}

.results-section {
    margin-top: 40px;
}

.results-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.result-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.result-card:hover {
    transform: translateY(-5px);
}

.result-card h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: white;
}

.number-circle {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    border-radius: 50%;
    font-size: 32px;
    font-weight: 700;
    color: white;
    margin: 0 auto 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Birth day and life path number circles */
.number-circles {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.number-circle-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.number-circle.small {
    width: 60px;
    height: 60px;
    font-size: 24px;
    margin-bottom: 8px;
}

.circle-label {
    font-size: 0.85rem;
    opacity: 0.8;
}

.meaning {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Compatibility Section Styles */
.compatibility-section {
    margin-top: 50px;
    padding: 30px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.compatibility-section h2 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.overall-compatibility {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.overall-compatibility h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: white;
}

.overall-compatibility p {
    max-width: 600px;
    margin: 15px auto 0;
    font-size: 1.1rem;
}

.compatibility-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.compatibility-card {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
}

.compatibility-card h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: white;
}

.compatibility-card .score {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.compatibility-card p {
    font-size: 0.95rem;
    margin-top: 15px;
}

.score-visual {
    display: flex;
    justify-content: center;
    margin: 10px 0;
    gap: 5px;
}

.score-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: inline-block;
}

.score-dot.filled {
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    box-shadow: 0 0 5px rgba(6, 182, 212, 0.6);
}

/* Calculation Steps Section Styles */
.calculation-steps {
    margin-top: 50px;
    padding: 30px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.calculation-steps h2 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.calculation-card {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 20px;
}

.calculation-card:last-child {
    margin-bottom: 0;
}

.calculation-card h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: white;
    text-align: center;
}

.calculation-content {
    font-size: 0.95rem;
    line-height: 1.6;
}

.calculation-content p {
    margin-bottom: 15px;
}

.calculation-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.calculation-content ul li {
    margin-bottom: 5px;
}

.calculation-content strong {
    color: white;
    font-weight: 600;
}

footer {
    margin-top: 60px;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    background-color: var(--card-bg);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-about {
    margin-bottom: 40px;
    text-align: center;
}

.footer-about h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    background: linear-gradient(to right, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer-about p {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
    font-size: 1rem;
    opacity: 0.9;
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: white;
}

.footer-column p {
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-disclaimer {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
}

.footer-disclaimer p {
    margin-bottom: 10px;
    font-size: 0.85rem;
    opacity: 0.7;
}

.copyright {
    font-size: 0.8rem;
    margin-top: 20px;
    opacity: 0.6;
}

/* Responsive adjustments for footer */
@media (max-width: 768px) {
    .footer-about h2 {
        font-size: 1.6rem;
    }
    
    .footer-columns {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 480px) {
    footer {
        padding: 20px 0;
    }
    
    .footer-about h2 {
        font-size: 1.4rem;
    }
    
    .footer-about p, 
    .footer-column p {
        font-size: 0.9rem;
    }
    
    .footer-column h3 {
        font-size: 1.1rem;
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .results-container {
        grid-template-columns: 1fr;
    }
    
    .compatibility-details {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .input-section,
    .result-card,
    .compatibility-section,
    .compatibility-card,
    .calculation-steps,
    .calculation-card {
        padding: 20px;
    }
    
    header h1 {
        font-size: 1.75rem;
    }
    
    header p {
        font-size: 1rem;
    }
    
    .compatibility-section h2, 
    .calculation-steps h2 {
        font-size: 1.5rem;
    }
    
    .overall-compatibility h3 {
        font-size: 1.1rem;
    }
    
    .score-dot {
        width: 12px;
        height: 12px;
    }
    
    .number-circles {
        gap: 15px;
    }
    
    .number-circle.small {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
}

.privacy-notice {
    font-size: 0.9rem;
    margin: 15px 0;
    padding: 10px;
    background-color: rgba(79, 70, 229, 0.1);
    border-radius: 6px;
    border-left: 3px solid var(--accent-start);
}

.privacy-notice strong {
    color: white;
}

.footer-links {
    margin: 15px 0;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
    padding: 0 5px;
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
    text-decoration-color: var(--accent-end);
}

/* Policy Pages Styling */
.policy-content {
    margin: 30px auto;
    max-width: 800px;
}

.policy-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.policy-card h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: white;
}

.policy-card h3 {
    font-size: 1.3rem;
    margin: 30px 0 15px;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.policy-card p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.policy-card ul {
    margin: 15px 0 15px 20px;
}

.policy-card li {
    margin-bottom: 8px;
}

.policy-card strong {
    color: white;
}

.contact-info {
    background-color: rgba(79, 70, 229, 0.1);
    display: inline-block;
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 500;
    color: white;
    margin: 5px 0 15px;
}

.back-link {
    text-align: center;
    margin: 30px 0;
}

.back-link a {
    display: inline-block;
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.back-link a:hover {
    background-color: rgba(79, 70, 229, 0.2);
    color: white;
}

@media (max-width: 768px) {
    .policy-card {
        padding: 25px;
    }
    
    .policy-card h2 {
        font-size: 1.5rem;
    }
    
    .policy-card h3 {
        font-size: 1.2rem;
    }
}

/* Invalid input styling */
.invalid-input {
    border: 1px solid #e53e3e !important;
    box-shadow: 0 0 0 2px rgba(229, 62, 62, 0.3) !important;
}

/* Better tablet & mobile responsiveness */
@media (max-width: 1024px) {
    .container {
        max-width: 95%;
    }
    
    .footer-columns {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .results-container {
        grid-template-columns: 1fr;
    }
    
    .compatibility-details {
        grid-template-columns: 1fr;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .btn-submit {
        padding: 12px 15px;
    }
    
    .number-circle {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
    
    .calculation-card h3 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .input-section,
    .result-card,
    .compatibility-section,
    .compatibility-card,
    .calculation-steps,
    .calculation-card {
        padding: 15px;
    }
    
    header h1 {
        font-size: 1.5rem;
        letter-spacing: normal;
    }
    
    header p {
        font-size: 0.9rem;
    }
    
    .compatibility-section h2, 
    .calculation-steps h2 {
        font-size: 1.3rem;
    }
    
    .overall-compatibility h3 {
        font-size: 1rem;
    }
    
    .score-dot {
        width: 10px;
        height: 10px;
    }
    
    .number-circles {
        gap: 15px;
    }
    
    .number-circle.small {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    .number-circle {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    input {
        padding: 10px 12px;
    }
    
    .btn-submit {
        padding: 10px;
        font-size: 15px;
    }
}

/* Touch-friendly improvements */
@media (pointer: coarse) {
    .btn-submit, input, .footer-links a {
        min-height: 44px; /* Minimum touch target size */
    }
    
    input[type="date"] {
        min-height: 44px;
    }
    
    .footer-links a {
        display: inline-block;
        padding: 5px 10px;
    }
}

.main-description {
    margin-top: 20px;
    padding: 16px;
    background-color: #1e1e1e;
    color: var(--text-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 1.6;
}

.lucky-description {
    font-size: 0.9em;
    margin-bottom: 15px;
    padding-left: 15px;
    border-left: 3px solid var(--accent-start);
    color: var(--text-color);
    opacity: 0.9;
}

/* Firefox specific styles */
@-moz-document url-prefix() {
    input[type="date"] {
        color: var(--text-color);
        background-color: var(--input-bg);
    }
    
    input[type="date"]:focus {
        color: var(--text-color);
        background-color: var(--input-focus-bg);
        border-color: var(--accent-start);
        box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
    }
    
    input[type="date"]:focus::selection {
        background-color: var(--accent-start);
        color: white;
    }
}

/* Default text selection for all inputs */
input::selection {
    background-color: var(--accent-start);
    color: white;
}

/* For all browsers - general selection */
::selection {
    background-color: var(--accent-start);
    color: white;
}

/* Add styles for relationship types */
.relationship-type.veryFriendly {
    background-color: rgba(40, 167, 69, 0.15);
    border-left: 4px solid #28a745;
}

.relationship-type.friendly {
    background-color: rgba(130, 201, 30, 0.15);
    border-left: 4px solid #82c91e;
}

.relationship-type.neutral {
    background-color: rgba(255, 193, 7, 0.15);
    border-left: 4px solid #ffc107;
}

.relationship-type.challenging {
    background-color: rgba(253, 126, 20, 0.15);
    border-left: 4px solid #fd7e14;
}

.relationship-type.enemy {
    background-color: rgba(220, 53, 69, 0.15);
    border-left: 4px solid #dc3545;
    border-width: 4px;
    font-weight: bold;
}

/* Style for incompatible scores (0%) */
.compatibility-meter .meter-fill[style="width: 0%"] {
    display: none;
}

.score:contains("0%") {
    color: #dc3545;
    font-weight: bold;
}

/* Add a special class that can be applied with JS when score is 0 */
.incompatible-score {
    color: #dc3545;
    font-weight: bold;
}

/* Add special indicator for incompatible relationships */
/* :has() selector for modern browsers */
.compatibility-meter:has(+ .incompatible-score) {
    position: relative;
    border: 1px solid #dc3545;
}

.compatibility-meter:has(+ .incompatible-score)::after {
    content: "INCOMPATIBLE";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: #dc3545;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Fallback class that can be added with JavaScript */
.incompatible-meter {
    position: relative;
    border: 1px solid #dc3545;
}

.incompatible-meter::after {
    content: "INCOMPATIBLE";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: #dc3545;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Date Input Dark Mode */
#dateOfBirthCustom {
    font-size: 1.1em;
    padding: 10px;
    border-radius: 8px;
    border: 2px solid #ccc;
    transition: all 0.3s;
    background-color: var(--input-bg);
    color: var(--text-color);
}

#dateOfBirthCustom:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
    outline: none;
    background-color: var(--input-focus-bg);
}

#dateOfBirthCustom::selection {
    background-color: var(--accent-start);
    color: white;
}

.valid-date {
    border-color: #28a745 !important;
    background-color: rgba(40, 167, 69, 0.05) !important;
    color: var(--text-color) !important;
}

.invalid-date {
    border-color: #dc3545 !important;
    background-color: rgba(220, 53, 69, 0.05) !important;
    color: var(--text-color) !important;
}

/* Fix for autofill background in dark mode */
#dateOfBirthCustom:-webkit-autofill,
#dateOfBirthCustom:-webkit-autofill:hover, 
#dateOfBirthCustom:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-color);
    -webkit-box-shadow: 0 0 0px 1000px var(--input-focus-bg) inset;
    transition: background-color 5000s ease-in-out 0s;
    caret-color: var(--text-color);
}

/* Firefox specific styles for date inputs */
@-moz-document url-prefix() {
    #dateOfBirthCustom {
        color-scheme: dark;
        background-color: var(--input-bg);
        color: var(--text-color);
    }
}

/* Invalid input styling */
.invalid-input {
    border: 1px solid #e53e3e !important;
    box-shadow: 0 0 0 2px rgba(229, 62, 62, 0.3) !important;
}

/* Global form styles for dark theme */
select {
    color-scheme: dark;
    background-color: var(--input-bg);
    color: var(--text-color);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

select option {
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 10px;
}

/* Firefox specific dark mode for dropdowns */
@-moz-document url-prefix() {
    select {
        color-scheme: dark;
    }
    
    select option {
        background-color: var(--card-bg);
        color: var(--text-color);
    }
}

/* Chrome specific styles for dropdowns */
@media screen and (-webkit-min-device-pixel-ratio:0) {
    select {
        color-scheme: dark;
    }
    
    select option {
        background-color: var(--card-bg);
    }
    
    select::-webkit-scrollbar {
        width: 10px;
        background-color: var(--bg-color);
    }
    
    select::-webkit-scrollbar-thumb {
        background-color: rgba(255, 255, 255, 0.2);
        border-radius: 5px;
    }
    
    select::-webkit-scrollbar-thumb:hover {
        background-color: rgba(255, 255, 255, 0.3);
    }
}