```css
/* =========================================================
   MONARCH CONNECT
   HEADER + HERO + SIDE MENU
   ========================================================= */


/* =========================================================
   RESET
   ========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #050505;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
    overflow-x: hidden;
}

button,
a {
    font-family: inherit;
}


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

.main-header {
    position: absolute;
    top: 0;
    left: 0;

    width: 100%;
    height: 100px;

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

    padding: 0 55px;

    z-index: 50;
}


/* Header bottom line */

.main-header::after {
    content: "";

    position: absolute;

    left: 55px;
    right: 55px;
    bottom: 0;

    height: 1px;

    background: rgba(200, 164, 91, 0.65);
}


/* =========================================================
   MENU BUTTON
   ========================================================= */

.menu-btn {
    position: relative;

    width: 80px;
    height: 40px;

    display: flex;
    align-items: center;

    padding: 0 0 0 38px;

    background: transparent;
    border: none;

    color: #fff;

    font-size: 12px;
    font-weight: 400;

    letter-spacing: 2px;

    cursor: pointer;

    z-index: 60;
}


/* Hamburger lines */

.menu-btn span {
    position: absolute;

    left: 0;

    width: 25px;
    height: 1px;

    background: #C8A45B;

    display: block;

    transition:
        transform 0.3s ease,
        width 0.3s ease,
        background 0.3s ease;
}

.menu-btn span:nth-child(1) {
    top: 8px;
}

.menu-btn span:nth-child(2) {
    top: 15px;
}

.menu-btn span:nth-child(3) {
    top: 22px;
}


/* Menu hover */

.menu-btn:hover {
    color: #C8A45B;
}

.menu-btn:hover span:nth-child(1) {
    width: 30px;
}

.menu-btn:hover span:nth-child(3) {
    width: 20px;
}


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

.logo {
    position: absolute;

    top: 50%;
    left: 50%;

    transform: translate(-50%, -50%);

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

    z-index: 55;
}

.logo img {
    width: 150px;
    height: 150px;

    display: block;

    object-fit: contain;
}


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

.contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 12px 24px;

    border: 1px solid rgba(200, 164, 91, 0.8);

    color: #fff;

    text-decoration: none;

    font-size: 12px;
    font-weight: 400;

    letter-spacing: 2px;

    transition: all 0.35s ease;

    z-index: 55;
}

.contact-btn:hover {
    background: #C8A45B;

    border-color: #C8A45B;

    color: #000;
}


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

.hero {
    position: relative;

    width: 100%;
    height: 100vh;

    min-height: 650px;

    overflow: hidden;

    display: flex;
    align-items: center;
    justify-content: center;
}


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

.hero-video {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;

    z-index: 0;
}


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

.hero-overlay {
    position: absolute;

    inset: 0;

    background:
        linear-gradient(
            90deg,
            rgba(0, 0, 0, 0.88) 0%,
            rgba(0, 0, 0, 0.45) 50%,
            rgba(0, 0, 0, 0.88) 100%
        );

    z-index: 1;
}


/* Extra dark top/bottom */

.hero-overlay::after {
    content: "";

    position: absolute;

    inset: 0;

    background:
        linear-gradient(
            180deg,
            rgba(0, 0, 0, 0.45),
            transparent 30%,
            transparent 70%,
            rgba(0, 0, 0, 0.65)
        );
}


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

.hero-content {
    position: relative;

    z-index: 5;

    width: 100%;
    max-width: 1100px;

    padding: 30px;

    text-align: center;
}


/* Small heading */

.hero-small {
    margin-bottom: 22px;

    color: #C8A45B;

    font-size: 13px;
    font-weight: 400;

    letter-spacing: 7px;

    text-transform: uppercase;
}


/* Main heading */

.hero-content h1 {
    margin: 0;

    color: #fff;

    font-size: clamp(55px, 8vw, 120px);

    font-weight: 300;

    line-height: 1;

    letter-spacing: 10px;

    text-transform: uppercase;
}

.hero-content h1 span {
    color: #C8A45B;
}


/* =========================================================
   HERO GOLD LINE
   ========================================================= */

.hero-line {
    width: 420px;
    max-width: 80%;

    height: 3px;

    margin: 35px auto 25px;

    background: #C8A45B;
}


/* =========================================================
   TAGLINE
   ========================================================= */

.hero-tagline {
    margin-bottom: 38px;

    color: #ddd;

    font-size: 16px;
    font-weight: 300;

    letter-spacing: 4px;

    line-height: 1.6;
}


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

.hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 15px 32px;

    border: 1px solid #C8A45B;

    color: #fff;

    text-decoration: none;

    font-size: 11px;
    font-weight: 400;

    letter-spacing: 3px;

    transition: all 0.4s ease;
}

.hero-btn:hover {
    background: #C8A45B;

    color: #000;

    transform: translateY(-3px);
}


/* =========================================================
   SCROLL INDICATOR
   ========================================================= */

.scroll-down {
    position: absolute;

    left: 50%;
    bottom: 28px;

    transform: translateX(-50%);

    z-index: 5;

    text-align: center;
}

.scroll-down span {
    display: block;

    width: 1px;
    height: 45px;

    margin: 0 auto;

    background: #C8A45B;

    animation: scrollLine 1.7s infinite ease-in-out;
}

.scroll-down p {
    margin-top: 8px;

    color: #aaa;

    font-size: 9px;

    letter-spacing: 3px;
}


/* Scroll animation */

@keyframes scrollLine {

    0% {
        opacity: 0;
        transform: translateY(-10px);
    }

    50% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(10px);
    }
}


/* =========================================================
   SIDE MENU
   ========================================================= */

.side-menu {
    position: fixed;

    top: 0;
    left: -500px;

    width: 370px;
    height: 100vh;

    padding: 120px 45px 40px;

    background: #080808;

    border-right: 1px solid rgba(200, 164, 91, 0.45);

    z-index: 200;

    overflow-y: auto;

    transition: left 0.45s cubic-bezier(0.77, 0, 0.175, 1);
}


/* Open */

.side-menu.active {
    left: 0;
}


/* =========================================================
   CLOSE BUTTON
   ========================================================= */

.close-btn {
    position: absolute;

    top: 28px;
    right: 30px;

    width: 42px;
    height: 42px;

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

    padding: 0;

    background: transparent;
    border: none;

    color: #fff;

    font-size: 35px;
    font-weight: 200;

    line-height: 1;

    cursor: pointer;

    transition: all 0.3s ease;
}

.close-btn:hover {
    color: #C8A45B;

    transform: rotate(90deg);
}


/* =========================================================
   SIDE MENU NAVIGATION
   ========================================================= */

.side-menu nav {
    display: flex;

    flex-direction: column;

    gap: 0;
}

.side-menu nav a {
    position: relative;

    display: block;

    padding: 18px 0;

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

    color: #fff;

    text-decoration: none;

    font-size: 17px;

    font-weight: 400;

    letter-spacing: 2px;

    transition: all 0.3s ease;
}

.side-menu nav a:first-child {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.side-menu nav a:hover {
    padding-left: 10px;

    color: #C8A45B;
}


/* =========================================================
   MENU OVERLAY
   ========================================================= */

.menu-overlay {
    position: fixed;

    inset: 0;

    background: rgba(0, 0, 0, 0.72);

    z-index: 150;

    opacity: 0;

    visibility: hidden;

    pointer-events: none;

    transition:
        opacity 0.35s ease,
        visibility 0.35s ease;
}

.menu-overlay.active {
    opacity: 1;

    visibility: visible;

    pointer-events: auto;
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 900px) {

    .main-header {
        height: 90px;

        padding: 0 30px;
    }

    .main-header::after {
        left: 30px;
        right: 30px;
    }


    /* Logo */

    .logo img {
        width: 125px;
        height: 125px;
    }


    /* Menu */

    .menu-btn {
        font-size: 11px;
    }


    /* Hero */

    .hero-content h1 {
        font-size: clamp(48px, 9vw, 85px);

        letter-spacing: 6px;
    }

    .hero-tagline {
        font-size: 14px;
    }

}


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

@media (max-width: 600px) {

    /* Header */

    .main-header {
        height: 80px;

        padding: 0 18px;
    }

    .main-header::after {
        left: 18px;
        right: 18px;
    }


    /* Logo */

    .logo img {
        width: 100px;
        height: 100px;
    }


    /* Menu */

    .menu-btn {
        width: 75px;
        height: 36px;

        padding-left: 30px;

        font-size: 9px;

        letter-spacing: 1.5px;
    }

    .menu-btn span {
        width: 20px;
    }

    .menu-btn span:nth-child(1) {
        top: 7px;
    }

    .menu-btn span:nth-child(2) {
        top: 14px;
    }

    .menu-btn span:nth-child(3) {
        top: 21px;
    }


    /* Contact */

    .contact-btn {
        padding: 9px 13px;

        font-size: 9px;

        letter-spacing: 1.5px;
    }


    /* Hero */

    .hero {
        min-height: 600px;
    }

    .hero-content {
        padding: 20px;
    }


    /* Small title */

    .hero-small {
        margin-bottom: 18px;

        font-size: 9px;

        letter-spacing: 4px;
    }


    /* Main title */

    .hero-content h1 {
        font-size: 40px;

        letter-spacing: 3px;

        line-height: 1.15;
    }


    /* Gold line */

    .hero-line {
        width: 230px;

        height: 2px;

        margin: 25px auto 20px;
    }


    /* Tagline */

    .hero-tagline {
        max-width: 320px;

        margin: 0 auto 30px;

        font-size: 11px;

        letter-spacing: 2px;

        line-height: 1.8;
    }


    /* Hero button */

    .hero-btn {
        padding: 12px 22px;

        font-size: 9px;

        letter-spacing: 2px;
    }


    /* Scroll */

    .scroll-down {
        bottom: 20px;
    }


    /* Side menu */

    .side-menu {
        left: -90%;

        width: 85%;

        padding: 100px 30px 30px;
    }

    .side-menu.active {
        left: 0;
    }


    /* Menu links */

    .side-menu nav a {
        padding: 16px 0;

        font-size: 15px;
    }


    /* Close */

    .close-btn {
        top: 22px;
        right: 22px;

        font-size: 32px;
    }

}


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

@media (max-width: 380px) {

    .main-header {
        padding: 0 14px;
    }

    .main-header::after {
        left: 14px;
        right: 14px;
    }

    .logo img {
        width: 85px;
        height: 85px;
    }

    .menu-btn {
        width: 70px;

        padding-left: 27px;

        font-size: 8px;
    }

    .menu-btn span {
        width: 18px;
    }

    .contact-btn {
        padding: 8px 10px;

        font-size: 8px;
    }

    .hero-content h1 {
        font-size: 34px;

        letter-spacing: 2px;
    }

    .hero-small {
        font-size: 8px;

        letter-spacing: 3px;
    }

    .hero-tagline {
        font-size: 10px;
    }

}


/* =========================================================
   SAFETY: PREVENT HORIZONTAL SCROLL
   ========================================================= */

img,
video {
    max-width: 100%;
}

```