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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Inter, Arial, sans-serif;
    background: #050816;
    color: white;
    line-height: 1.6;
}

/* NAVBAR */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;

    height: 80px;
    padding: 0 7%;

    display: flex;
    justify-content: space-between;
    align-items: center;

    background: rgba(5, 8, 22, 0.92);
    backdrop-filter: blur(10px);

    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo a {
    color: white;
    text-decoration: none;
}

nav {
    display: flex;
    align-items: center;
}

nav a {
    color: #cbd5e1;
    text-decoration: none;
    margin-left: 30px;
    font-size: 15px;
    transition: 0.3s;
}

nav a:hover {
    color: #38bdf8;
}

/* BUTTONS */

.btn-small,
.btn-primary,
.btn-secondary {
    text-decoration: none;
    border-radius: 999px;
    font-weight: 700;
    transition: 0.3s;
}

.btn-small {
    padding: 11px 20px;
    background: #2563eb;
    color: white;
}

.btn-small:hover {
    background: #1d4ed8;
}

.btn-primary {
    padding: 16px 30px;
    background: linear-gradient(90deg, #2563eb, #0ea5e9);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    padding: 16px 30px;
    border: 1px solid #475569;
    color: white;
}

.btn-secondary:hover {
    border-color: #38bdf8;
}

/* HERO */

.hero {
    min-height: 90vh;

    display: flex;
    align-items: center;

    padding: 0 7%;

    background:
        radial-gradient(circle at top right,
            rgba(37,99,235,0.35),
            transparent 30%),

        radial-gradient(circle at bottom left,
            rgba(20,184,166,0.20),
            transparent 30%),

        #050816;
}

.hero-content {
    max-width: 950px;
}

.eyebrow {
    color: #38bdf8;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 22px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero h1 {
    font-size: 76px;
    line-height: 1.05;
    margin-bottom: 28px;
    letter-spacing: -3px;
}

.subtitle {
    font-size: 22px;
    color: #cbd5e1;
    max-width: 850px;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}
.hero-contact {

    margin-top: 28px;

    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-wrap: wrap;

    color: #94a3b8;

    font-size: 15px;
}

.hero-contact span {

    display: flex;
    align-items: center;
}
/* SECTIONS */

.section {
    padding: 110px 7%;
}

.section-dark {
    background: #08111f;
}

.section h2,
.flow h2,
.cta h2 {
    font-size: 48px;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.section p {
    color: #cbd5e1;
    max-width: 850px;
    font-size: 19px;
}

/* CARDS */

.cards {
    margin-top: 60px;

    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));

    gap: 28px;
}

.card {
    background: rgba(15, 23, 42, 0.85);

    border: 1px solid rgba(255,255,255,0.08);

    border-radius: 24px;

    padding: 35px;

    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);

    border-color: rgba(56,189,248,0.4);
}

.card h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.card p {
    color: #cbd5e1;
}

/* FLOW */

.flow {
    padding: 110px 7%;
    background: #050816;
}

.flow-box {
    margin-top: 40px;

    padding: 35px;

    border-radius: 24px;

    background:
        linear-gradient(
            90deg,
            #1d4ed8,
            #0f766e
        );

    font-size: 24px;
    font-weight: 700;
}

/* CTA */

.cta {
    text-align: center;
    padding: 110px 7%;
    background: #08111f;
}

.cta p {
    color: #cbd5e1;
    font-size: 20px;
    margin-bottom: 35px;
}

/* DEMO FORM */

.demo-form {
    margin-top: 40px;
    max-width: 650px;

    display: flex;
    flex-direction: column;
    gap: 22px;
}

.demo-form input {
    width: 100%;
    height: 68px;

    padding: 18px 24px;

    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.12);

    background: #0f172a;
    color: white;

    font-size: 17px;

    transition: 0.3s;
}

.demo-form input:focus {
    outline: none;
    border-color: #38bdf8;
}

.demo-form input::placeholder {
    color: #94a3b8;
}

.demo-form button {
    width: fit-content;

    padding: 16px 34px;

    border-radius: 999px;
    border: none;

    background: linear-gradient(90deg, #2563eb, #0ea5e9);

    color: white;
    font-size: 16px;
    font-weight: 700;

    cursor: pointer;

    transition: 0.3s;
}

.demo-form button:hover {
    transform: translateY(-2px);
}

/* FOOTER */

.footer {
    padding: 40px 7%;

    border-top: 1px solid rgba(255,255,255,0.08);

    color: #94a3b8;
    text-align: center;
}

/* MOBILE */

@media (max-width: 900px) {

    .hero h1 {
        font-size: 52px;
    }

    .subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

    nav {
        display: none;
    }

    .section h2,
    .flow h2,
    .cta h2 {
        font-size: 38px;
    }

    .demo-form input {
        height: 62px;
    }
}
.error-box {

    margin-top: 30px;

    padding: 18px 22px;

    border-radius: 14px;

    background: rgba(239, 68, 68, 0.15);

    border: 1px solid rgba(239, 68, 68, 0.35);

    color: #fecaca;

    max-width: 650px;
}