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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #0a0a0a;
}

/* Accessibility - Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #00d9ff;
    color: #0a0a0a;
    padding: 8px 16px;
    text-decoration: none;
    font-weight: bold;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 2rem;
    text-align: center;
    border-bottom: 3px solid #0f3460;
}

header h1 {
    font-size: 3rem;
    color: #00d9ff;
    text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
    margin-bottom: 0.5rem;
}

.tagline {
    color: #a0a0a0;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
}

nav a {
    color: #00d9ff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

nav a:hover {
    background-color: rgba(0, 217, 255, 0.1);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 4rem;
}

h2 {
    font-size: 2rem;
    color: #00d9ff;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #0f3460;
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.5rem;
    color: #00b8d4;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

h4 {
    font-size: 1.2rem;
    color: #00d9ff;
    margin-bottom: 0.5rem;
}

.hero {
    text-align: center;
    padding: 2rem 0;
}

.hero p {
    font-size: 1.2rem;
    color: #b0b0b0;
    max-width: 800px;
    margin: 0 auto;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #16213e;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 217, 255, 0.3);
    border-color: #00d9ff;
}

.project-card h3 {
    margin-bottom: 1rem;
    margin-top: 0;
}

.project-card p {
    color: #b0b0b0;
    flex-grow: 1;
}

.project-card a {
    color: #00d9ff;
    text-decoration: none;
}

.project-card a:hover {
    text-decoration: underline;
}

.tech-stack {
    display: block;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 217, 255, 0.2);
    font-size: 0.9rem;
    color: #808080;
    font-style: italic;
}

/* Mentorship Section */
.mentorship-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    font-size: 1.1rem;
    color: #b0b0b0;
}

.tier-system {
    margin: 3rem 0;
}

.tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tier {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #16213e;
    text-align: center;
}

.tier h4 {
    color: #00d9ff;
    margin-bottom: 0.5rem;
}

.tier p {
    color: #b0b0b0;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.badge-type {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 217, 255, 0.2);
    border-radius: 4px;
    font-size: 0.85rem;
    color: #00d9ff;
}

.assessment-method {
    max-width: 800px;
    margin: 3rem auto;
    text-align: center;
}

.highlight {
    font-size: 1.1rem;
    color: #00d9ff;
    padding: 1.5rem;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.tracks ul {
    list-style: none;
    max-width: 900px;
    margin: 1.5rem auto;
}

.tracks li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: rgba(0, 217, 255, 0.05);
    border-left: 3px solid #00d9ff;
    border-radius: 4px;
}

.tracks a {
    color: #00d9ff;
    text-decoration: none;
}

.tracks a:hover {
    text-decoration: underline;
}

.track-detail {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(0, 217, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.track-detail h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.track-detail p {
    color: #b0b0b0;
    margin-bottom: 1rem;
}

.track-detail ul {
    list-style: none;
    padding-left: 0;
}

.track-detail li {
    padding: 0.5rem 0;
    color: #b0b0b0;
}

.mentorship-contact {
    max-width: 800px;
    margin: 3rem auto 0;
    text-align: center;
    padding: 2rem;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.mentorship-contact p {
    font-size: 1.1rem;
    color: #e0e0e0;
    margin: 0;
}

.special-challenges {
    margin: 3rem 0;
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.challenge-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #16213e;
}

.challenge-card h4 {
    color: #00d9ff;
    margin-bottom: 0.5rem;
}

.challenge-card p {
    color: #b0b0b0;
    margin-bottom: 1rem;
}

.reward {
    display: block;
    font-size: 0.9rem;
    color: #00ff88;
    font-style: italic;
}

.cta {
    text-align: center;
    margin: 3rem 0;
}

.button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #00d9ff 0%, #00b8d4 100%);
    color: #0a0a0a;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 217, 255, 0.5);
}

/* About & Contact Sections */
.about, .contact {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.about p, .contact p {
    font-size: 1.1rem;
    color: #b0b0b0;
    margin-bottom: 1rem;
}

.values ul, .community-projects ul, .links ul {
    list-style: none;
    margin: 1rem 0;
}

.values li, .community-projects li, .links li {
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    background: rgba(0, 217, 255, 0.05);
    border-left: 2px solid #00d9ff;
    border-radius: 4px;
}

.links a, .community-projects a {
    color: #00d9ff;
    text-decoration: none;
}

.links a:hover, .community-projects a:hover {
    text-decoration: underline;
}

.getting-started ol {
    margin: 1rem 0;
    padding-left: 2rem;
    color: #b0b0b0;
}

.getting-started li {
    margin-bottom: 0.8rem;
    padding: 0.5rem;
}

.contact-info {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(0, 217, 255, 0.05);
    border-radius: 8px;
}

.note {
    color: #00ff88;
    font-style: italic;
}

.coming-soon {
    font-style: italic;
    color: #808080;
}

footer {
    background: #0a0a0a;
    padding: 2rem;
    text-align: center;
    border-top: 2px solid #0f3460;
    color: #808080;
}

.footer-note {
    font-size: 0.9rem;
    color: #606060;
    margin-top: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    .project-grid, .tiers, .challenge-grid {
        grid-template-columns: 1fr;
    }

    main {
        padding: 1rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Link Styles */
a {
    color: #00d9ff;
}

a:visited {
    color: #00b8d4;
}