```css
/* ==========================================
   GLOBAL
========================================== */

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

html,
body {
    width: 100%;
    min-height: 100%;
}

body {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;

    color: #ffffff;

    background:
        radial-gradient(
            circle at 15% 20%,
            #1e40af 0%,
            transparent 35%
        ),
        radial-gradient(
            circle at 85% 80%,
            #0f766e 0%,
            transparent 35%
        ),
        linear-gradient(
            135deg,
            #020617 0%,
            #0f172a 100%
        );

    overflow-x: hidden;
}


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

.background {
    position: fixed;
    inset: 0;

    width: 100%;
    height: 100%;

    overflow: hidden;

    pointer-events: none;

    z-index: 0;
}

.circle {
    position: absolute;

    border-radius: 50%;

    border: 1px solid
        rgba(255, 255, 255, 0.15);

    background:
        rgba(255, 255, 255, 0.02);

    animation: floating 8s
        ease-in-out infinite;
}

.circle-one {
    width: 320px;
    height: 320px;

    top: -120px;
    left: -80px;
}

.circle-two {
    width: 480px;
    height: 480px;

    right: -180px;
    bottom: -220px;

    animation-delay: 2s;
}

.circle-three {
    width: 160px;
    height: 160px;

    right: 18%;
    top: 18%;

    animation-delay: 4s;
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}


/* ==========================================
   PAGE
========================================== */

.page-container {
    position: relative;

    z-index: 2;

    min-height: 100vh;

    width: 100%;

    display: flex;

    align-items: center;

    justify-content: center;

    padding: 40px 20px;
}


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

.construction-card {

    width: 100%;

    max-width: 760px;

    padding: 55px 45px;

    text-align: center;

    background:
        rgba(255, 255, 255, 0.07);

    border:
        1px solid
        rgba(255, 255, 255, 0.14);

    border-radius: 28px;

    backdrop-filter: blur(18px);

    -webkit-backdrop-filter: blur(18px);

    box-shadow:
        0 30px 80px
        rgba(0, 0, 0, 0.35);

    animation:
        cardEntrance 0.9s
        ease forwards;
}

@keyframes cardEntrance {

    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ==========================================
   LOGO
========================================== */

.logo-container {
    display: flex;

    justify-content: center;

    margin-bottom: 22px;
}

.logo-placeholder {

    width: 90px;
    height: 90px;

    display: flex;

    align-items: center;
    justify-content: center;

    border-radius: 22px;

    background:
        linear-gradient(
            135deg,
            #ffffff,
            #dbeafe
        );

    color: #0f172a;

    font-size: 32px;

    font-weight: 800;

    letter-spacing: 1px;

    box-shadow:
        0 15px 40px
        rgba(0, 0, 0, 0.25);
}


/* ==========================================
   COMPANY NAME
========================================== */

.company-name {

    margin-bottom: 20px;

    font-size: 14px;

    font-weight: 700;

    letter-spacing: 3px;

    color:
        rgba(255, 255, 255, 0.7);
}


/* ==========================================
   ICON
========================================== */

.construction-icon {

    font-size: 56px;

    margin-bottom: 15px;

    display: inline-block;

    animation:
        toolAnimation 2.5s
        ease-in-out infinite;
}

@keyframes toolAnimation {

    0%,
    100% {
        transform: rotate(-8deg);
    }

    50% {
        transform: rotate(8deg);
    }
}


/* ==========================================
   HEADING
========================================== */

h1 {

    font-size:
        clamp(40px, 7vw, 68px);

    line-height: 1.05;

    font-weight: 800;

    letter-spacing: -2px;

    margin-bottom: 22px;

    background:
        linear-gradient(
            90deg,
            #ffffff,
            #bfdbfe,
            #ffffff
        );

    background-size: 200% auto;

    -webkit-background-clip: text;

    background-clip: text;

    color: transparent;

    animation:
        headingShine 4s
        linear infinite;
}

@keyframes headingShine {

    to {
        background-position: 200% center;
    }
}


/* ==========================================
   DESCRIPTION
========================================== */

.description {

    max-width: 570px;

    margin:
        0 auto 8px;

    font-size: 18px;

    line-height: 1.7;

    color:
        rgba(255, 255, 255, 0.82);
}

.sub-description {

    font-size: 14px;

    line-height: 1.6;

    color:
        rgba(255, 255, 255, 0.5);
}


/* ==========================================
   PROGRESS
========================================== */

.progress-section {

    max-width: 430px;

    margin:
        35px auto 0;
}

.progress-info {

    display: flex;

    justify-content: space-between;

    align-items: center;

    margin-bottom: 9px;

    font-size: 13px;

    color:
        rgba(255, 255, 255, 0.6);
}

.progress-track {

    width: 100%;

    height: 7px;

    overflow: hidden;

    border-radius: 20px;

    background:
        rgba(255, 255, 255, 0.12);
}

.progress-bar {

    width: 0%;

    height: 100%;

    border-radius: 20px;

    background:
        linear-gradient(
            90deg,
            #60a5fa,
            #22d3ee
        );

    transition:
        width 1.5s ease;
}


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

.contact-buttons {

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 12px;

    flex-wrap: wrap;

    margin-top: 35px;
}

.btn {

    min-width: 145px;

    padding:
        13px 22px;

    display: inline-flex;

    justify-content: center;

    align-items: center;

    gap: 8px;

    border-radius: 12px;

    text-decoration: none;

    font-size: 14px;

    font-weight: 600;

    transition:
        all 0.25s ease;
}

.btn-primary {

    color: #0f172a;

    background: #ffffff;
}

.btn-primary:hover {

    transform:
        translateY(-3px);

    background: #e2e8f0;

    box-shadow:
        0 10px 25px
        rgba(0, 0, 0, 0.2);
}

.btn-secondary {

    color: #ffffff;

    background:
        rgba(255, 255, 255, 0.08);

    border:
        1px solid
        rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {

    transform:
        translateY(-3px);

    background:
        rgba(255, 255, 255, 0.16);
}


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

footer {

    margin-top: 38px;

    font-size: 12px;

    color:
        rgba(255, 255, 255, 0.4);
}


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

@media (max-width: 600px) {

    .page-container {
        padding: 20px 15px;
    }

    .construction-card {

        padding: 42px 22px;

        border-radius: 22px;
    }

    .logo-placeholder {

        width: 75px;
        height: 75px;

        border-radius: 18px;

        font-size: 28px;
    }

    .construction-icon {
        font-size: 48px;
    }

    h1 {

        font-size: 42px;

        letter-spacing: -1px;
    }

    .description {
        font-size: 16px;
    }

    .contact-buttons {

        flex-direction: column;

        width: 100%;
    }

    .btn {

        width: 100%;
    }
}
```