:root {
    --primary: #0078ff;
    --primary-dark: #0058d9;
    --secondary: #2ac4ff;
    --dark: #07152f;
    --light: #f8fbff;
    --text: #324255;
    --white: #ffffff;
    --shadow: 0 20px 60px rgba(0, 0, 0, .08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

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

/* ==========================
   HEADER
========================== */

.header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0,0,0,.08);
    z-index: 1000;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 220px;
    padding: 10px 0;
}

.logo {
    display: flex;
    align-items: center;
    flex: 1;
}

.logo img {
    height: 300px;
    width: auto;
    display: block;
    transition: all .25s ease;
}

.logo img:hover {
    transform: scale(1.02);
}

.menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 50px;
}

.menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 17px;
    transition: all .2s ease;
}

.menu a:hover {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 34px;
    cursor: pointer;
    color: var(--dark);
}

.nav-btn {
    background: var(--primary);
    color: #fff !important;
    padding: 14px 26px;
    border-radius: 12px;
}

.nav-btn:hover {
    background: var(--primary-dark);
}

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

.hero {
    padding: 100px 0;
    background: linear-gradient(
        to bottom,
        #f8fbff 0%,
        #ffffff 100%
    );
}

.hero-content {
    text-align: center;
    margin-bottom: 60px;
}

.hero-subline {
    display: inline-block;
    background: var(--dark);
    color: white;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    margin-bottom: 30px;
}

.hero h1 {
    color: var(--dark);
    font-size: 72px;
    line-height: 1.05;
    max-width: 900px;
    margin: 0 auto 25px;
}

.hero-text {
    max-width: 850px;
    margin: 0 auto 35px;
    font-size: 22px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* ==========================
   BUTTONS
========================== */

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: .25s ease;
}

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

.btn-outline {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

/* ==========================
   DEMO CARD
========================== */

.demo-card {
    max-width: 950px;
    margin: 0 auto;
    background: white;
    padding: 35px;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.search-box {
    background: #eef5fd;
    padding: 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-weight: 600;
}

.answer-box {
    background: var(--dark);
    color: white;
    padding: 25px;
    border-radius: 16px;
}

.answer-box h3 {
    margin-bottom: 10px;
}

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

.section {
    padding: 110px 0;
}

.section-light {
    background: var(--light);
}

.section h2 {
    text-align: center;
    color: var(--dark);
    font-size: 48px;
    margin-bottom: 50px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 25px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,.05);
    transition: .25s ease;
}

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

.card h3 {
    margin-bottom: 12px;
    color: var(--dark);
}

/* ==========================
   SECURITY
========================== */

.narrow {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.narrow p {
    font-size: 20px;
}

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

.contact {
    background: var(--dark);
}

.contact h2,
.contact-intro {
    color: white;
}

.contact-intro {
    text-align: center;
    margin-bottom: 30px;
}

.contact form {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact input,
.contact textarea {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
}

.contact textarea {
    min-height: 160px;
    resize: vertical;
}

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

footer {
    background: #f8fbff;
    color: #07152f;
    text-align: center;
    padding: 70px 20px;
    border-top: 1px solid #dce5f2;
}
.footer-logo {
    width: 320px;
    max-width: 90%;
    margin-bottom: 20px;
}

.footer-tagline {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.footer-industries {
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: .85;
    margin-bottom: 15px;
}

.footer-copyright {
    opacity: .6;
    font-size: 0.9rem;
}

/* ==========================
   MOBILE
========================== */

@media (max-width: 900px) {

    .navbar {
        min-height: 120px;
    }

    .logo img {
        height: 105px;
    }

    .menu {
        display: none;
        position: absolute;
        top: 120px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: center;
        gap: 20px;
        padding: 30px;
        box-shadow: 0 10px 25px rgba(0,0,0,.15);
        border-top: 1px solid #e5e7eb;
    }

    .menu.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
        font-size: 34px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero-text {
        font-size: 18px;
    }

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

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

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

    .section h2 {
        font-size: 34px;
    }

}