:root {
    --color-blue: #0d6efd;
    --color-blue-dark: #063b8f;
    --color-black: #05070d;
    --color-white: #ffffff;
    --color-muted: #6c757d;
    --color-surface: #0b1220;
    --shadow-soft: 0 24px 80px rgba(13, 110, 253, 0.18);
    --radius-lg: 28px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    color: var(--color-white);
    background: var(--color-black);
}

.app-navbar {
    background: rgba(5, 7, 13, 0.82);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar-brand span {
    color: var(--color-blue);
}

.nav-link {
    color: rgba(255, 255, 255, 0.78);
    font-weight: 500;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-white);
}

.hero-section {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at top right, rgba(13, 110, 253, 0.45), transparent 35%),
        linear-gradient(135deg, #05070d 0%, #07111f 50%, #020409 100%);
}

.hero-section::before {
    position: absolute;
    inset: 0;
    content: "";
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, black, transparent);
    pointer-events: none;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.eyebrow,
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.eyebrow::before,
.section-tag::before {
    width: 28px;
    height: 2px;
    content: "";
    background: currentColor;
}

.lead {
    max-width: 680px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.25rem;
}

.hero-card {
    position: relative;
    overflow: hidden;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(22px);
}

.hero-card-glow {
    position: absolute;
    top: -80px;
    right: -80px;
    width: 180px;
    height: 180px;
    background: var(--color-blue);
    filter: blur(70px);
    opacity: 0.55;
}

.hero-card p,
.hero-card h2 {
    position: relative;
    z-index: 1;
}

.section-padding {
    padding: 7rem 0;
}

.section-title {
    margin-top: 1rem;
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 800;
    line-height: 1.05;
}

.section-text {
    color: #3f4652;
    font-size: 1.1rem;
    line-height: 1.8;
}

.services-section {
    background:
        radial-gradient(circle at bottom left, rgba(13, 110, 253, 0.34), transparent 32%),
        var(--color-black);
}

.service-card {
    padding: 2rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    transition:
        transform 180ms ease,
        border-color 180ms ease,
        box-shadow 180ms ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(13, 110, 253, 0.7);
    box-shadow: var(--shadow-soft);
}

.service-icon {
    display: grid;
    width: 52px;
    height: 52px;
    margin-bottom: 1.5rem;
    color: var(--color-white);
    font-weight: 800;
    place-items: center;
    background: var(--color-blue);
    border-radius: 16px;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.35rem;
    font-weight: 800;
}

.service-card p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.68);
    line-height: 1.7;
}

.contact-box {
    padding: 3rem;
    background:
        linear-gradient(135deg, rgba(13, 110, 253, 0.08), rgba(5, 7, 13, 0.04)),
        var(--color-white);
    border: 1px solid rgba(13, 110, 253, 0.16);
    border-radius: var(--radius-lg);
    box-shadow: 0 22px 70px rgba(5, 7, 13, 0.08);
}

.app-footer {
    padding: 2rem 0;
    color: rgba(255, 255, 255, 0.72);
    background: #020409;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-primary {
    background: var(--color-blue);
    border-color: var(--color-blue);
}

.btn-primary:hover {
    background: var(--color-blue-dark);
    border-color: var(--color-blue-dark);
}

@media (max-width: 767.98px) {
    .section-padding {
        padding: 5rem 0;
    }

    .contact-box {
        padding: 2rem;
    }

    .hero-section {
        text-align: left;
    }
}

.contact-form .form-label {
    color: #111827;
    font-weight: 700;
}

.contact-form .form-control {
    min-height: 48px;
    border: 1px solid rgba(5, 7, 13, 0.16);
    border-radius: 14px;
}

.contact-form .form-control:focus {
    border-color: var(--color-blue);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.14);
}

.contact-form textarea.form-control {
    min-height: 130px;
    resize: vertical;
}