:root {
    /* Light theme */
    --primary-bg: #ffffff;
    --secondary-bg: #f8f9fa;
    --tertiary-bg: #f1f3f5;
    --primary-text: #101010;
    --secondary-text: #343a40;
    --muted-text: #6c757d;
    --border-color: #e9ecef;
    --accent-color: #212529;
    --shadow: rgba(0, 0, 0, 0.05);
    --code-bg: #f8f9fa;
    --input-bg: #f8f9fa;
    --card-bg: #ffffff;
    --button-hover: #e9ecef;
    --success-color: #212529;
    --scroll-thumb: #adb5bd;
}

[data-theme="dark"] {
    /* Dark theme */
    --primary-bg: #18191A;
    --secondary-bg: #242526;
    --tertiary-bg: #3A3B3C;
    --primary-text: #F5F5F5;
    --secondary-text: #B0B3B8;
    --muted-text: #8A8D91;
    --border-color: #3A3B3C;
    --accent-color: #E4E6EB;
    --shadow: rgba(0, 0, 0, 0.3);
    --code-bg: #3A3B3C;
    --input-bg: #3A3B3C;
    --card-bg: #242526;
    --button-hover: #4E4F50;
    --success-color: #E4E6EB;
    --scroll-thumb: #4E4F50;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--primary-bg);
    color: var(--primary-text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* HEADER */
.header {
    padding: 2rem 2rem 4rem;
    background-color: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary-text);
}

.logo-dot {
    color: var(--accent-color);
    font-size: 2rem;
}

.top-nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.top-nav a {
    color: var(--secondary-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.2s;
    padding-bottom: 5px;
}

.top-nav a:hover {
    color: var(--primary-text);
}

.top-nav a.active {
    color: var(--primary-text);
    border-bottom: 2px solid var(--primary-text);
}

.theme-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--secondary-text);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--primary-text);
}

.header-banner {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.banner-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--primary-text);
}

.banner-subtitle {
    font-size: 1.25rem;
    color: var(--secondary-text);
    font-weight: 400;
}

/* MAIN CONTENT */
main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.intro {
    padding: 4rem 2rem;
    background-color: var(--secondary-bg);
}

.intro-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
}

.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
}

.suggestion-chip {
    padding: 0.6rem 1.2rem;
    background-color: var(--tertiary-bg);
    color: var(--primary-text);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.suggestion-chip:hover {
    background-color: var(--button-hover);
    transform: translateY(-1px);
}

/* CONVERSATION SECTION */
.conversation-wrapper {
    padding: 3rem 2rem;
    background-color: var(--primary-bg);
}

.conversation-container {
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px var(--shadow);
}

.chat-container {
    height: 450px;
    overflow-y: auto;
    padding: 1.5rem;
    background-color: var(--secondary-bg);
    scrollbar-width: thin;
    scrollbar-color: var(--scroll-thumb) transparent;
}

.chat-container::-webkit-scrollbar {
    width: 6px;
}

.chat-container::-webkit-scrollbar-track {
    background: transparent;
}

.chat-container::-webkit-scrollbar-thumb {
    background: var(--scroll-thumb);
    border-radius: 3px;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* MESSAGE STYLING */
.message {
    display: flex;
    max-width: 85%;
    animation: messageSlideIn 0.3s ease-out;
}

.user-message {
    align-self: flex-end;
    justify-content: flex-end;
}

.assistant-message {
    align-self: flex-start;
}

.message-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.2rem 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    border: 1px solid var(--border-color);
}

.user-message .message-content {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
}

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

.message-detail {
    margin-top: 0.8rem;
    color: var(--secondary-text);
    font-size: 0.9rem;
}

.user-message .message-detail {
    color: rgba(255, 255, 255, 0.8);
}

/* INPUT AREA */
.input-container {
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.input-wrapper {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.4rem;
    transition: all 0.2s ease;
}

.input-wrapper:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(33, 37, 41, 0.2);
}

.chat-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    color: var(--primary-text);
    font-family: 'Inter', sans-serif;
}

.chat-input::placeholder {
    color: var(--muted-text);
}

.send-button {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background-color: var(--accent-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.send-button:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

.input-hint {
    margin-top: 0.8rem;
    color: var(--muted-text);
    font-size: 0.8rem;
    text-align: center;
}

/* FEATURES SECTION */
.features-section {
    padding: 5rem 2rem;
    background-color: var(--secondary-bg);
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--secondary-text);
}

/* FOOTER */
footer {
    background-color: var(--primary-bg);
    padding: 4rem 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--secondary-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-text);
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--muted-text);
}

/* VERSE AND STUDY STYLING */
.verse-container {
    margin-top: 0.5rem;
}

.verse-reference {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.verse-text {
    padding: 1.2rem;
    background-color: var(--tertiary-bg);
    border-radius: 8px;
    font-style: italic;
    border-left: 3px solid var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.explanation-container {
    margin-top: 1.5rem;
}

.explanation-section {
    margin-bottom: 1.5rem;
    padding: 1.2rem;
    background-color: var(--tertiary-bg);
    border-radius: 8px;
    border-left: 3px solid var(--success-color);
}

.explanation-section h4 {
    color: var(--primary-text);
    margin-bottom: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
}

.explanation-section p {
    font-size: 0.9rem;
}

.study-container {
    margin-top: 0.5rem;
}

.study-title {
    color: var(--primary-text);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 700;
}

.study-audience {
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    font-style: italic;
    font-size: 0.9rem;
}

.study-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--tertiary-bg);
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

.study-section h4 {
    color: var(--primary-text);
    margin-bottom: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
}

.study-verses {
    margin: 0.8rem 0;
    padding: 0.8rem;
    background-color: var(--code-bg);
    border-radius: 6px;
    font-size: 0.85rem;
}

.study-questions {
    margin-bottom: 1.5rem;
}

.study-questions h4 {
    color: var(--primary-text);
    margin-bottom: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
}

.study-questions ol {
    padding-left: 1.2rem;
}

.study-questions li {
    margin-bottom: 0.8rem;
    color: var(--primary-text);
}

.study-conclusion h4 {
    color: var(--primary-text);
    margin-bottom: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
}

/* LOADING ANIMATION */
.loading-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--secondary-text);
    padding: 0.5rem;
}

.typing-indicator {
    display: flex;
    gap: 0.3rem;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--secondary-text);
    animation: typingAnimation 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingAnimation {
    0%, 80%, 100% { 
        transform: scale(0);
        opacity: 0.5;
    }
    40% { 
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* MEDIA QUERIES */
@media (max-width: 768px) {
    .header {
        padding: 1.5rem 1.5rem 3rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .top-nav ul {
        gap: 1.5rem;
    }
    
    .banner-title {
        font-size: 2.2rem;
    }
    
    .conversation-wrapper,
    .intro,
    .features-section {
        padding: 2rem 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .message {
        max-width: 95%;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* ANIMATIONS */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.fade-in {
    animation: fadeIn 1s ease-out;
}

.slide-up {
    animation: slideUp 0.8s ease-out;
} 

/* Additional page styles */
.page-content {
    padding: 3rem 2rem 5rem;
    background-color: var(--primary-bg);
}

.page-container {
    max-width: 900px;
    margin: 0 auto;
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.page-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-color);
}

/* About page styles */
.about-section {
    margin-bottom: 3rem;
}

.about-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.about-section h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5rem;
    height: 1.5rem;
    width: 5px;
    background-color: var(--accent-color);
}

.about-section p {
    margin-bottom: 1.2rem;
    line-height: 1.7;
}

.about-list {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.about-list li {
    margin-bottom: 0.8rem;
    position: relative;
}

/* Resource page styles */
.resource-section {
    margin-bottom: 4rem;
}

.resource-section h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.resource-card {
    background-color: var(--card-bg);
    padding: 1.8rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow);
    border-color: var(--accent-color);
}

.resource-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.resource-card p {
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.resource-link {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background-color: var(--tertiary-bg);
    color: var(--primary-text);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    text-align: center;
}

.resource-link:hover {
    background-color: var(--accent-color);
    color: white;
}

/* Contact page styles */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2, 
.contact-form-container h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.contact-info p {
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-method svg {
    color: var(--accent-color);
    flex-shrink: 0;
}

.contact-method h3 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
}

.contact-method p {
    margin-bottom: 0;
    color: var(--secondary-text);
}

.contact-method a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-method a:hover {
    text-decoration: underline;
}

.contact-form {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 20px var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--primary-text);
    font-family: 'Inter', sans-serif;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(33, 37, 41, 0.1);
}

.submit-button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    width: 100%;
}

.submit-button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .contact-section {
        grid-template-columns: 1fr;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
}

/* Message Actions - Copy/Share Buttons */
.message-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.message:hover .message-actions {
    opacity: 1;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--muted-text);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.action-btn:hover {
    background: var(--tertiary-bg);
    color: var(--primary-text);
    border-color: var(--accent-color);
}

.action-btn svg {
    width: 14px;
    height: 14px;
}

.action-btn.copied {
    background: #dcfce7;
    color: #16a34a;
    border-color: #bbf7d0;
}

/* Dark mode support for copy/share buttons */
[data-theme="dark"] .action-btn.copied {
    background: #064e3b;
    color: #34d399;
    border-color: #065f46;
}

/* Daily Verse Section */
.daily-verse-section {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--tertiary-bg) 100%);
    border-bottom: 1px solid var(--border-color);
}

.daily-verse-container {
    max-width: 800px;
    margin: 0 auto;
}

.verse-of-day {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.verse-of-day::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-text));
}

.verse-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.verse-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-text);
    margin: 0;
}

.verse-date {
    font-size: 0.9rem;
    color: var(--secondary-text);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.verse-content {
    text-align: center;
    margin-bottom: 2rem;
}

.verse-text {
    font-size: 1.4rem;
    line-height: 1.6;
    color: var(--primary-text);
    font-style: italic;
    margin: 0 0 1.5rem 0;
    font-weight: 400;
    position: relative;
}

.verse-text::before,
.verse-text::after {
    content: '"';
    font-size: 2rem;
    color: var(--accent-color);
    font-family: Georgia, serif;
}

.verse-reference {
    display: block;
    font-size: 1.1rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-style: normal;
}

.verse-insight {
    background: var(--tertiary-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--secondary-text);
    text-align: left;
    margin-top: 1.5rem;
}

.verse-insight::before {
    content: '💡 Insight: ';
    font-weight: 600;
    color: var(--primary-text);
}

.verse-actions {
    display: flex;
    justify-content: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.verse-share-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.8rem 1.5rem;
    background: var(--tertiary-bg);
    color: var(--primary-text);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.verse-share-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.verse-share-btn svg {
    width: 16px;
    height: 16px;
}

/* Dark mode adjustments */
[data-theme="dark"] .daily-verse-section {
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .daily-verse-section {
        padding: 2rem 1.5rem;
    }
    
    .verse-of-day {
        padding: 2rem;
    }
    
    .verse-header {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .verse-text {
        font-size: 1.2rem;
    }
    
    .verse-title {
        font-size: 1.5rem;
    }
}