/* css/style.css */

/* Global Reset and Box Sizing */
html {
    box-sizing: border-box;
}

*, *:before, *:after {
    box-sizing: inherit;
}

/* Base Styles and Font Consistency */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.7;
    color: #444;
    background: #f4f4f4;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-left: 1rem;
    padding-right: 1rem;
}

a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

h1, h2, h3 {
    color: #222;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

section {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Header and Navigation */
header {
    background: white;
    padding: 0.5rem 1.5rem;
    border-bottom: 1px solid #eee;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
}

#nav-container {
    display: flex;
    align-items: center;
}

.site-header-text {
    display: none;
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    border-radius: 6px;
    padding: 0.5rem;
}

nav li {
    margin: 0 0.5rem;
}

nav li a {
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease, background-color 0.3s ease;
    padding: 0.7rem 1rem;
    border-radius: 4px;
    display: block;
    text-decoration: none;
}

nav li a:hover,
nav li a.active {
    color: #007bff;
    background-color: #eee;
}

nav a.active {
    font-weight: bold;
}

.mobile-nav-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: #333;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #e9ecef 0%, #f8f9fa 100%);
    text-align: center;
    padding: 3rem 1.5rem;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding-bottom: 2rem;
}

.hero-content h2 {
    font-size: 1.5rem;
    color: #555;
    font-weight: 500;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: small;
}

.cta-button,
.cta-button.secondary {
    background-color: #007bff;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 1rem;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.cta-button.secondary {
    background-color: #6c757d;
}

.cta-button:hover,
.cta-button.secondary:hover {
    background-color: #003f83;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
}

/* Chatbot Features Summary Section */
.chatbot-features-summary {
    background-color: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 2rem;
    margin-top: 2rem;
    margin-bottom: 2.5rem;
    text-align: left;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.chatbot-features-summary h2 {
    font-size: 1.6rem;
    color: #222;
    margin-bottom: 1.5rem;
    text-align: center;
}

.chatbot-features-summary ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.chatbot-features-summary li {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 1.25rem;
    font-size: 1.05rem;
    color: #444;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.5;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    min-height: 150px;
}

.chatbot-features-summary li:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.chatbot-features-summary li i {
    color: #2d649e;
    margin-bottom: 0.75rem;
    font-size: 1.8rem;
    min-width: auto;
    text-align: left;
}

.chatbot-features-summary li b {
    display: block;
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.architecture-summary {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.architecture-summary h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.architecture-summary p {
    text-align: center;
    margin-bottom: 25px;
    line-height: 1.6;
}

.architecture-diagram {
    padding: 10px;
    /* border: 1px solid #ddd; */
    /* background-color: #fff; */
}

/* Tech Stack Breakdown Section */
.tech-stack-breakdown {
    margin-top: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.tech-stack-breakdown h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #222;
}

.skills-category {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.skills-category h3 {
    font-size: 1.3rem;
    color: #007bff;
    margin-top: 0;
    margin-bottom: 1rem;
    text-align: center;
}

/* Sample Prompts Section */
.sample-prompts-section {
    background-color: #f0f8ff;
    border: 1px solid #d0e8ff;
    border-radius: 8px;
    padding: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.sample-prompts-section h2 {
    font-size: 1.6rem;
    color: #222;
    margin-bottom: 1rem;
}

.sample-prompts-section p {
    font-size: 1.05rem;
    color: #555;
    margin-bottom: 1.5rem;
}


/* About Section */
.about-section {
    background-color: #ffffff;
    padding: 3rem 1.5rem;
    text-align: center;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.about-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

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

.about-section p {
    font-size: 1.05rem;
    color: #555;
    margin-bottom: 1.5rem;
}

/* Contact Section */
.contact-section {
    background-color: #f8f9fa;
    padding: 3rem 1.5rem;
    text-align: center;
}

.contact-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.contact-links a {
    color: #007bff;
    transition: color 0.3s ease;
}

.contact-links a:hover {
    color: #51565a;
}

.contact-links i {
    font-size: 2.5rem;
}

.contact-note {
    font-size: 0.9rem;
    color: #777;
    font-style: italic;
    margin-top: 1rem;
}

footer {
    background: #333;
    color: #f4f4f4;
    padding: 1.5rem 0;
    border-top: 1px solid #444;
    font-size: 0.8rem;
    text-align: center;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: #00BCD4;
    text-decoration: none;
}

footer a:hover {
    color: #00a7b3;
    text-decoration: underline;
}

footer a i.fab.fa-linkedin {
    margin-right: 0.3em;
    font-size: 1em;
    color: #007bff;
}

footer .infrastructure-highlights {
    font-size: 0.75rem;
    color: #aaa;
    text-align: center;
    margin-top: 0.5rem;
}

footer .infrastructure-highlights b {
    color: #eee;
    font-weight: bold;
}

footer .infrastructure-highlights i.fas.fa-gear {
    margin-right: 0.3em;
    color: #888;
}

footer .infrastructure-highlights i:last-child {
    font-style: italic;
}