/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #0a1628;
    color: #e0e7f0;
    line-height: 1.7;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ===== HIGHLIGHT ===== */
.highlight {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
}
.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    padding: 12px 0;
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
}
.logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 1.25rem; font-weight: 700; color: #fff;
}
.logo svg { color: #60a5fa; }
.nav-links {
    display: flex; list-style: none; gap: 32px;
}
.nav-links a {
    font-size: 0.9rem; font-weight: 500; color: #94a3b8;
    transition: color 0.3s; position: relative;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px; background: #60a5fa;
    transition: width 0.3s; border-radius: 2px;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.hamburger {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
    display: block; width: 24px; height: 2px;
    background: #e0e7f0; border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding-top: 80px;
}
.hero-bg {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(37, 99, 235, 0.15), transparent),
        radial-gradient(ellipse 60% 50% at 80% 80%, rgba(139, 92, 246, 0.1), transparent),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(6, 182, 212, 0.05), transparent);
    pointer-events: none;
}
.hero-content {
    position: relative; z-index: 2;
    max-width: 700px;
}
.hero-badge {
    display: inline-block;
    font-size: 0.8rem; font-weight: 600; letter-spacing: 2px;
    color: #60a5fa; border: 1px solid rgba(96, 165, 250, 0.3);
    padding: 6px 16px; border-radius: 100px;
    margin-bottom: 24px;
}
.hero h1 {
    font-size: 3.5rem; font-weight: 800; line-height: 1.15;
    color: #fff; margin-bottom: 20px;
}
.hero h1 .highlight { font-size: 3.5rem; }
.hero p {
    font-size: 1.15rem; color: #94a3b8;
    max-width: 560px; margin-bottom: 32px;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px; border-radius: 12px;
    font-size: 1rem; font-weight: 600; cursor: pointer;
    transition: all 0.3s; border: none;
}
.btn-primary {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff; box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}
.btn-outline {
    background: transparent; color: #e0e7f0;
    border: 1px solid rgba(255,255,255,0.15);
}
.btn-outline:hover {
    border-color: #60a5fa; color: #fff;
    background: rgba(96, 165, 250, 0.1);
}
.hero-plane {
    position: absolute; right: -60px; top: 50%;
    transform: translateY(-40%);
    opacity: 0.5; pointer-events: none;
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(-40%) translateX(0); }
    50% { transform: translateY(-45%) translateX(20px); }
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
}
.section-alt {
    background: rgba(255,255,255,0.02);
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.section-label {
    display: inline-block;
    font-size: 0.8rem; font-weight: 600; letter-spacing: 2px;
    color: #60a5fa; margin-bottom: 12px;
}
.section-title {
    font-size: 2.5rem; font-weight: 700; color: #fff;
    margin-bottom: 16px;
}
.section-desc {
    font-size: 1.1rem; color: #94a3b8;
    max-width: 600px; margin-bottom: 48px;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px; margin-top: 48px;
}
.about-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px; padding: 36px 28px;
    transition: all 0.3s;
}
.about-card:hover {
    background: rgba(255,255,255,0.06);
    transform: translateY(-4px);
    border-color: rgba(96, 165, 250, 0.2);
}
.about-icon { font-size: 2.5rem; margin-bottom: 16px; }
.about-card h3 {
    font-size: 1.15rem; font-weight: 600; color: #fff;
    margin-bottom: 8px;
}
.about-card p { font-size: 0.95rem; color: #94a3b8; line-height: 1.7; }

/* ===== BLOG ===== */
.blog-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.blog-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px; overflow: hidden;
    transition: all 0.3s;
}
.blog-card:hover {
    transform: translateY(-4px);
    border-color: rgba(96, 165, 250, 0.2);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.blog-img {
    height: 180px;
    display: flex; align-items: center; justify-content: center;
}
.blog-emoji { font-size: 3rem; opacity: 0.7; }
.blog-body { padding: 24px; }
.blog-tag {
    display: inline-block;
    font-size: 0.75rem; font-weight: 600; color: #60a5fa;
    background: rgba(96, 165, 250, 0.1);
    padding: 4px 12px; border-radius: 100px;
    margin-bottom: 12px;
}
.blog-body h3 {
    font-size: 1.15rem; font-weight: 600; color: #fff;
    margin-bottom: 8px;
}
.blog-body p {
    font-size: 0.9rem; color: #94a3b8;
    margin-bottom: 12px; line-height: 1.6;
}
.blog-date {
    font-size: 0.8rem; color: #64748b;
}

/* ===== CONTACT ===== */
.contact-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.contact-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px; padding: 36px 28px; text-align: center;
    transition: all 0.3s;
}
.contact-card:hover {
    background: rgba(255,255,255,0.06);
    transform: translateY(-4px);
    border-color: rgba(96, 165, 250, 0.2);
}
.contact-icon { font-size: 2.5rem; margin-bottom: 16px; }
.contact-card h3 {
    font-size: 1rem; font-weight: 600; color: #fff;
    margin-bottom: 4px;
}
.contact-card p { font-size: 0.9rem; color: #64748b; }

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 32px 0;
}
.footer-content {
    display: flex; align-items: center; justify-content: space-between;
}
.footer p { font-size: 0.9rem; color: #64748b; }
.footer-tag { color: #94a3b8; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.85rem; color: #64748b; transition: color 0.3s; }
.footer-links a:hover { color: #60a5fa; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 70%; height: 100vh;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column; align-items: center; justify-content: center;
        gap: 40px; transition: right 0.3s;
        border-left: 1px solid rgba(255,255,255,0.05);
    }
    .nav-links.open { right: 0; }
    .hamburger { display: flex; z-index: 1001; }
    .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .hero h1 { font-size: 2.2rem; }
    .hero h1 .highlight { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    .hero-plane { display: none; }

    .section-title { font-size: 1.8rem; }
    .about-grid, .blog-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .footer-content { flex-direction: column; gap: 16px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .about-grid, .blog-grid, .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}