/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text-primary: #e8e8ed;
    --text-secondary: #9898a8;
    --text-muted: #606078;
    --accent: #f0a050;
    --accent-2: #e87840;
    --accent-glow: rgba(240, 160, 80, 0.15);
    --accent-blog: #60a5fa;
    --accent-blog-glow: rgba(96, 165, 250, 0.12);
    --accent-team: #f0a050;
    --accent-team-glow: rgba(240, 160, 80, 0.15);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Particle Canvas ===== */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== Main Container ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
    animation: fadeDown 0.8s ease-out;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--text-primary);
}

.logo-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
    animation: pulse 2s ease-in-out infinite;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 450;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition);
}

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

.nav-link:hover::after {
    width: 100%;
}

/* ===== Hero ===== */
.hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 0 60px;
    animation: fadeUp 1s ease-out 0.2s both;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 100px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-size: 0.8rem;
    font-weight: 450;
    color: var(--text-secondary);
    margin-bottom: 32px;
    letter-spacing: 0.02em;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.title-line.accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s ease-in-out infinite;
}

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 350;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 520px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #0a0a0f;
    border: none;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-card);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* ===== Sections ===== */
.section-header {
    margin-bottom: 48px;
    animation: fadeUp 0.8s ease-out both;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

/* ===== About ===== */
.about {
    padding: 60px 0 80px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.about-card {
    padding: 28px;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: all var(--transition);
    animation: fadeUp 0.6s ease-out both;
}

.about-card:nth-child(1) { animation-delay: 0.1s; }
.about-card:nth-child(2) { animation-delay: 0.2s; }
.about-card:nth-child(3) { animation-delay: 0.3s; }

.about-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--accent);
    margin-bottom: 18px;
}

.about-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.about-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== Links ===== */
.links {
    padding: 40px 0 80px;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.link-card {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid var(--border);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-slow);
    animation: fadeUp 0.6s ease-out both;
    display: flex;
    flex-direction: column;
}

.link-card:nth-child(1) { animation-delay: 0.15s; }
.link-card:nth-child(2) { animation-delay: 0.3s; }

.link-card-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.link-card-blog {
    background: var(--bg-card);
}

.link-card-blog .link-card-bg {
    background: radial-gradient(ellipse at 100% 0%, var(--accent-blog-glow) 0%, transparent 60%),
                radial-gradient(ellipse at 0% 100%, rgba(96, 165, 250, 0.05) 0%, transparent 40%);
}

.link-card-team {
    background: var(--bg-card);
}

.link-card-team .link-card-bg {
    background: radial-gradient(ellipse at 100% 0%, var(--accent-team-glow) 0%, transparent 60%),
                radial-gradient(ellipse at 0% 100%, rgba(240, 160, 80, 0.05) 0%, transparent 40%);
}

.link-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.link-card:hover .link-card-bg {
    opacity: 1;
}

.link-card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.link-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    transition: all var(--transition);
}

.link-card-blog .link-card-icon {
    color: var(--accent-blog);
}

.link-card-team .link-card-icon {
    color: var(--accent-team);
}

.link-card:hover .link-card-icon {
    transform: scale(1.05);
}

.link-card-blog:hover .link-card-icon {
    box-shadow: 0 0 20px var(--accent-blog-glow);
}

.link-card-team:hover .link-card-icon {
    box-shadow: 0 0 20px var(--accent-team-glow);
}

.link-card-title {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.link-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    flex: 1;
}

.link-card-url {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.link-card-arrow {
    align-self: flex-end;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.link-card-blog:hover .link-card-arrow {
    border-color: var(--accent-blog);
    color: var(--accent-blog);
    background: rgba(96, 165, 250, 0.1);
    transform: translateX(4px);
}

.link-card-team:hover .link-card-arrow {
    border-color: var(--accent-team);
    color: var(--accent-team);
    background: rgba(240, 160, 80, 0.1);
    transform: translateX(4px);
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 40px;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border), transparent);
    margin-bottom: 40px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--text-primary);
}

.footer-tagline {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.footer-link:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

@keyframes shimmer {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 200% center; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card-hover);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== Selection ===== */
::selection {
    background: var(--accent-glow);
    color: var(--accent);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .header {
        padding: 20px 0;
    }

    .nav {
        gap: 20px;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .hero {
        padding: 48px 0 40px;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        justify-content: center;
        width: 100%;
    }

    .section-title {
        font-size: 1.6rem;
    }

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

    .link-card {
        padding: 28px;
    }

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

    .footer-content {
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 0.75rem;
    }

    .nav {
        gap: 14px;
    }
}