@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap');

:root {
    --bg-dark: #05060f;
    --bg-darker: #02030a;
    --neon-blue: #00e5ff;
    --neon-purple: #7c3aed;
    --neon-pink: #ff2df7;
    --text-light: #f1f5f9;
    --text-muted: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    overflow-x: hidden;
    position: relative;
    z-index: 1;
}

/* ================= CANVAS LAYER ================= */

#networkCanvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

/* ================= BACKGROUND ================= */

.background {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    background: radial-gradient(circle at 20% 30%, #0f172a, #05060f 60%);
}

.glow {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--neon-purple), transparent 70%);
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    filter: blur(150px);
    animation: float 12s ease-in-out infinite alternate;
    opacity: 0.5;
}

.glow::after {
    content: "";
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--neon-blue), transparent 70%);
    top: 40%;
    left: -30%;
    filter: blur(140px);
    animation: floatSlow 20s ease-in-out infinite alternate;
    opacity: 0.4;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,229,255,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,229,255,0.06) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: moveGrid 30s linear infinite;
}

@keyframes moveGrid {
    from { background-position: 0 0; }
    to { background-position: 80px 80px; }
}

@keyframes float {
    from { transform: translate(-50%, -40px); }
    to { transform: translate(-50%, 40px); }
}

@keyframes floatSlow {
    from { transform: translate(0, -30px); }
    to { transform: translate(0, 30px); }
}

/* ================= LAYOUT ================= */

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.narrow {
    max-width: 800px;
}

.navbar {
    padding: 1.5rem 0;
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 1.1rem;
    color: var(--neon-blue);
}

nav a {
    margin-left: 2rem;
    text-decoration: none;
    color: var(--text-muted);
    transition: 0.3s ease;
}

nav a:hover {
    color: var(--neon-blue);
}

.nav-cta {
    padding: 0.5rem 1rem;
    border: 1px solid var(--neon-blue);
    border-radius: 6px;
    color: var(--neon-blue);
}

.nav-cta:hover {
    background: var(--neon-blue);
    color: black;
}

/* ================= HERO ================= */

.hero {
    padding: 8rem 0 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple), var(--neon-pink));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 6s linear infinite;
}

@keyframes gradientShift {
    to { background-position: 200% center; }
}

.hero p {
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2rem auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn-primary {
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    color: black;
    transition: 0.3s ease;
}

.btn-primary:hover {
    box-shadow: 0 0 30px var(--neon-blue);
}

.btn-secondary {
    border: 1px solid var(--border);
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-light);
}

/* ================= SECTIONS ================= */

.section {
    padding: 5rem 0;
}

.section-dark {
    background: rgba(255,255,255,0.02);
}

.section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ================= CARDS ================= */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    transition: 0.4s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(0,229,255,0.1), transparent);
    transform: translateX(-100%);
    transition: 0.6s ease;
}

.card:hover::before {
    transform: translateX(100%);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-blue);
    box-shadow: 0 0 25px rgba(0,229,255,0.3);
}

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

.card p {
    color: var(--text-muted);
}

/* ================= CONTACT ================= */

.contact-section {
    text-align: center;
}

.contact-email {
    font-size: 1.2rem;
    margin-top: 1rem;
    color: var(--neon-blue);
}

/* ================= CONTACT FORM ================= */

.contact-form {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    backdrop-filter: blur(16px);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: 0.3s ease;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
}

.contact-form textarea {
    resize: vertical;
    min-height: 140px;
}

.contact-form .btn-primary {
    align-self: flex-start;
    margin-top: 0.5rem;
}

/* ================= FOOTER ================= */

footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}