@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #faf0f0;
    --bg-surface: rgb(250, 247, 247);
    --bg-surface-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(255, 123, 0, 0.25);
    --cyan: #ff8000;
    --cyan-dim: rgba(255, 149, 0, 0.252);
    --yellow: #d4d44b;
    --yellow-dim: rgba(212, 212, 75, 0.15);
    --red-dim: rgba(239, 68, 68, 0.2);
    --text-primary: #000000;
    --text-tertiary: #ffffff;
    --text-secondary: #000000;
    --text-muted: #534039;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
    --shadow-cyan: 0 0 30px rgba(255, 68, 0, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --nav-h: 68px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-h);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 22px;
}

.logo-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.logo-accent {
    color: var(--cyan);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 7px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--cyan);
    background: var(--cyan-dim);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0 9px;
}

.hamburger span {
    display: block;
    height: 1.5px;
    background: var(--text-tertiary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--nav-h) + 40px) 24px 80px;
    overflow: hidden;
    z-index: 1;
}

.hero-orb {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(600px, 90vw);
    height: min(600px, 90vw);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 40%, rgba(255, 149, 0, 0.765) 0%, transparent 65%);
    border: 1px solid rgba(255, 157, 0, 0.12);
    box-shadow: 0 0 80px rgba(255, 174, 0, 0.06), inset 0 0 80px rgba(0, 255, 204, 0.03);
    animation: orbPulse 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes orbPulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.7;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.04);
        opacity: 1;
    }
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    max-width: 1100px;
    width: 100%;
    position: relative;
    z-index: 2;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    max-width: 650px;
    text-align: left;
}

.hero-photo-wrap {
    position: relative;
    width: 320px;
    height: 320px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-photo-ring {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    border: 2px dashed rgba(255, 106, 0, 0.554);
    animation: rotateRing 20s linear infinite;
    z-index: 1;
}

@keyframes rotateRing {
    100% {
        transform: rotate(360deg);
    }
}

.hero-photo {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    z-index: 2;
    border: 4px solid var(--bg-surface);
    box-shadow: 0 0 50px rgba(255, 140, 0, 0.15);
}

.hero-terminal {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--cyan);
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(42px, 7vw, 80px);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--cyan) 0%, #ff3d3d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 0 40px 0;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--cyan);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 15px;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary:hover {
    background: #00e6b8;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 255, 204, 0.35);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.btn-secondary:hover {
    border-color: var(--border-accent);
    color: var(--cyan);
    background: var(--cyan-dim);
    transform: translateY(-2px);
}

.hero-scroll {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    animation: fadeHint 2s ease-in-out 2s both;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% {
        opacity: 1;
        transform: scaleY(1) translateY(0);
    }

    100% {
        opacity: 0;
        transform: scaleY(0.5) translateY(20px);
    }
}

@keyframes fadeHint {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.section {
    position: relative;
    z-index: 1;
    padding: 100px 24px;
}

#about {
    padding-bottom: 20px;
}

#projects {
    padding-top: 40px;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 56px;
    text-align: center;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--cyan);
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    padding-bottom: 16px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--yellow);
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    color: var(--text-secondary);
    max-width: 600px;
    margin: -30px auto 50px;
    font-size: 15px;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 56px;
}

.about-bio {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.about-avatar {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border-accent);
    box-shadow: 0 0 24px rgba(255, 123, 0, 0.45);
    background: var(--bg-secondary);
}

.about-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-text {
    flex: 1;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 15px;
    line-height: 1.8;
}

.about-text p strong {
    color: var(--text-primary);
}

.tag {
    padding: 5px 12px;
    background: var(--cyan-dim);
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    color: var(--cyan);
    transition: background 0.2s ease;
}

.tag:hover {
    background: rgba(0, 255, 204, 0.2);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-surface-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-cyan);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--cyan);
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, background 0.3s ease,
        transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--cyan);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px 0 0 2px;
}

.service-card:hover::before {
    transform: scaleY(1);
}

.service-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-surface-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-cyan);
}

.service-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.service-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--cyan-dim);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, transform 0.3s ease;
    flex-shrink: 0;
}

.service-card:hover .service-icon-wrap {
    background: rgba(255, 111, 0, 0.2);
    transform: scale(1.08) rotate(-4deg);
}

.service-icon {
    font-size: 24px;
    line-height: 1;
}

.service-badge {
    padding: 4px 12px;
    background: var(--yellow-dim);
    border: 1px solid rgba(212, 212, 75, 0.3);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    color: var(--yellow);
    font-family: var(--font-mono);
    white-space: nowrap;
}

.service-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    transition: color 0.2s ease;
}

.service-card:hover .service-title {
    color: var(--cyan);
}

.service-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
    flex: 1;
}

.service-footer {
    margin-top: 4px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    transition: border-color 0.2s ease;
}

.service-card:hover .service-footer {
    border-color: var(--border-accent);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.service-card:hover .service-link {
    color: var(--cyan);
}

.service-arrow {
    display: inline-block;
    transition: transform 0.25s ease;
}

.service-card:hover .service-arrow {
    transform: translateX(5px);
}

.projects-grid,
.media-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.project-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-decoration: none;
    color: inherit;
    backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-surface-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-cyan);
}

.project-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 12px;
}

.project-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.project-card:hover .project-logo {
    transform: scale(1.08);
}

.project-badge {
    padding: 4px 10px;
    background: var(--yellow-dim);
    border: 1px solid rgba(212, 212, 75, 0.3);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    color: var(--yellow);
    white-space: nowrap;
    flex-shrink: 0;
}

.project-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    transition: color 0.2s ease;
}

.project-card:hover .project-name {
    color: var(--cyan);
}

.project-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.media-card {
    padding: 0;
    overflow: hidden;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.media-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: 0 8px 30px rgba(0, 255, 204, 0.08);
}

.media-photo-wrap {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.media-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.media-card:hover .media-photo {
    transform: scale(1.05);
}

.media-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--cyan-dim);
    color: var(--cyan);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.media-content {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.media-content .project-name {
    font-size: 18px;
    margin-bottom: 8px;
}

.media-content .project-desc {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 0;
}

.vuln-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.vuln-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.vuln-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-surface-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-cyan);
}

.vuln-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 20px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border);
    min-height: 90px;
    transition: background 0.3s ease;
}

.vuln-card:hover .vuln-logo-wrap {
    background: rgba(0, 255, 204, 0.04);
}

.vuln-logo {
    width: 54px;
    height: 54px;
    object-fit: contain;
    border-radius: 10px;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
    image-rendering: -webkit-optimize-contrast;
}

.vuln-logo-fallback {
    font-size: 40px;
    align-items: center;
    justify-content: center;
}

.vuln-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 12px;
}

.vuln-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.vuln-org {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.vuln-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
    white-space: nowrap;
    flex-shrink: 0;
}

.vuln-badge-acknowledged {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #f87171;
}

.vuln-badge-bounty {
    background: rgba(251, 146, 60, 0.15);
    border: 1px solid rgba(251, 146, 60, 0.35);
    color: #fb923c;
}

.vuln-badge-disclosed {
    background: var(--cyan-dim);
    border: 1px solid var(--border-accent);
    color: var(--cyan);
}

.vuln-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

.vuln-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.course-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16/9;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-cyan);
}

.course-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.courses-cta {
    text-align: center;
    margin-top: 8px;
}

.footer {
    position: relative;
    z-index: 1;
    padding: 40px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.social-link:hover {
    border-color: var(--border-accent);
    color: var(--cyan);
    background: var(--cyan-dim);
}

.footer-copy {
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .hero-inner {
        flex-direction: column-reverse;
        text-align: center;
        gap: 40px;
    }

    .hero-content {
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 40px auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 15px;
        width: 100%;
        text-align: center;
    }

    .hamburger {
        display: flex;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid,
    .media-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .vuln-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .section {
        padding: 72px 16px;
    }

    .about-bio {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 22px 14px;
    }

    .stat-number {
        font-size: 28px;
    }

    .projects-grid,
    .media-grid {
        grid-template-columns: 1fr;
    }

    .vuln-grid {
        grid-template-columns: 1fr;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .link-card {
        padding: 18px 20px;
    }

    .link-title {
        font-size: 15px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}