/* Existing root and basic styles... appending new sections */

:root {
    /* Brand Colors (User Defined) */
    --bg-dark: #193133;
    /* Dark Greenish-Blue Background */
    --accent-color: #d0ff71;
    /* Lime Green Highlight */
    --text-main: #ebfff6;
    /* Minty White Light Text */
    --primary-color: #d0ff71;
    /* Matching Accent for continuity */

    /* Derived/Secondary */
    --bg-card: rgba(235, 255, 246, 0.05);
    /* Glass effect using light color */
    --text-muted: rgba(235, 255, 246, 0.7);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

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

body {
    font-family: 'Noto Sans', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
.btn-primary,
.nav-links a,
.badge {
    font-family: 'Funnel Display', sans-serif;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .cta-group {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
        width: 100%;
    }

    .cta-group .btn-primary,
    .cta-group .btn-secondary {
        width: 100%;
        max-width: 350px;
        text-align: center;
        margin-left: 0 !important;
    }
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
    color: var(--accent-color);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-main);
}

p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: linear-gradient(to right, #d0ff71, #028460);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: -1rem auto 2rem auto;
}

/* Layout */
.glass-header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(25, 49, 51, 0.9);
    /* Matches new bg-dark */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(235, 255, 246, 0.1);
    z-index: 1000;
    display: flex;
    justify-content: center;
}

nav {
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo Image Styling */
.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    /* Slightly larger for presence */
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Simple hiding for now */
    }
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Buttons and Badges */
.btn-primary {
    background: var(--accent-color);
    color: var(--bg-dark);
    /* Dark text on light button */
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(208, 255, 113, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(208, 255, 113, 0.4);
    background: #c0f060;
    /* Slight darken on hover */
}

.btn-secondary {
    background: transparent;
    border: 1px solid #da6c4d;
    /* Updated color */
    color: #da6c4d;
    /* Updated color */
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    margin-left: var(--spacing-sm);
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    border-color: #da6c4d;
    background: rgba(218, 108, 77, 0.1);
    /* Subtle orange background on hover */
    color: #da6c4d;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-color);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Sections */
main {
    margin: 0 auto;
}

.section-padding {
    padding: 80px var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    background: radial-gradient(circle at 50% 10%, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
}

.hero-content {
    max-width: 800px;
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

@media (max-width: 768px) {
    .about-container {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 16px;
    text-align: center;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin: 0;
}

/* AI Methodology Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 1px solid rgba(235, 255, 246, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.ai-note {
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: var(--spacing-md);
    font-style: italic;
    color: var(--accent-color);
}

/* Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    border-left: 2px solid rgba(235, 255, 246, 0.1);
    padding-left: 2rem;
}

.timeline-item {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.6rem;
    top: 5px;
    width: 1rem;
    height: 1rem;
    background: var(--accent-color);
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}


.timeline-content h4 {
    color: var(--text-muted);
    font-weight: 400;
}

/* Tools Cloud */
.tools-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.tools-cloud span {
    background: rgba(235, 255, 246, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    border: 1px solid rgba(235, 255, 246, 0.1);
    font-size: 0.9rem;
}

/* Contact / Footer */
.cta-section {
    text-align: center;
    padding: 100px var(--spacing-md);
    background: linear-gradient(to top, var(--bg-dark), rgba(25, 49, 51, 0.8));
    border-top: 1px solid rgba(208, 255, 113, 0.1);
}

footer {
    text-align: center;
    padding: var(--spacing-md);
    border-top: 1px solid rgba(235, 255, 246, 0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.big-cta {
    font-size: 1.2rem;
    padding: 1rem 2.5rem;
}