:root {
    --font: "Montserrat";
    --text-color: black;
    --top-bar-height: 60px;

    --banner-color: white;
    --banner-background-color: black;
    --banner-filter: brightness(0) invert(1);

    --nav-logo-filter: brightness(0) invert(1);
    --nav-text-color: white;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

* {
    font-family: var(--font), sans-serif;
    box-sizing: border-box;
    color: black;
}

/* ---------------------- NAV ---------------------- */
nav.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--top-bar-height);
    background-color: rgba(0, 0, 0, 0);
    color: var(--nav-text-color);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    z-index: 1000;

    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

nav.nav h3 {
    color: var(--nav-text-color);
}

nav.nav.scrolled {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-logo {
    height: 40px; /* smaller for mobile */
    width: auto;
    filter: var(--nav-logo-filter);
}

.nav-title {
    margin: 0;
    font-weight: 500;
    font-size: 1.2rem;
}

.nav-buttons {
    display: flex;
    gap: 10px;
    height: 100%;
}

.nav-button {
    height: 100%;
    border: none;
    padding: 0 15px;
    color: var(--nav-text-color);
    font-size: 14px;
    background-color: transparent;
    transition: 0.15s background-color;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger {
    display: block;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    background: var(--nav-text-color);
    width: 25px;
    height: 3px;
    border-radius: 3px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: "";
    position: absolute;
    left: 0;
}

.hamburger::before { bottom: 8px; }
.hamburger::after { top: 8px; }

/* Hamburger animation when active */
.nav-toggle.active .hamburger {
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::before {
    opacity: 0;
}

.nav-toggle.active .hamburger::after {
    transform: rotate(90deg) translate(-8px, 0);
}

.nav-button:hover {
    background-color: rgba(51, 51, 51, 0.6);
}

div.banner {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--banner-background-color);
    width: 100%;
    height: 40vh;
    position: relative;
    opacity: 0;
    transition: opacity 1s ease;
}

div.banner.scroll-on-active {
    opacity: 1;
}

div.banner img {
    height: 20vh;
    width: auto;

    filter: var(--banner-filter);

    opacity: 0;
    transform: translateX(-150px) rotate(360deg);
    transition: 1s ease;
}

div.banner img.scroll-on-active {
    transform: translateX(0px) rotate(0deg);
    opacity: 1;
}

div.banner-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;

    opacity: 0;
    height: 40%;
    max-height: 150px;
    width: auto;

    transform: translateX(150px);
    transition: transform 1s ease, opacity 1s ease;

    margin-left: 20px;
}


div.banner-text h1 {
    margin: 0;
    font-weight: 800;
    font-size: 4rem;
    color: var(--banner-color);
}

div.banner-text.scroll-on-active {
    transform: translateX(0);
    opacity: 1;
}

@media (max-width: 1400px) {
    .nav-toggle {
        display: block;
    }

    .nav-buttons {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.95);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 20px;
        transition: right 0.3s ease;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .nav-buttons.active {
        right: 0;
    }

    .nav-button {
        height: auto;
        padding: 15px 0;
        font-size: 1.2rem;
        width: 100%;
        text-align: center;
    }

    nav.nav {
        padding: 0 1rem;
        height: 50px;
    }

    div.banner {
        height: 30vh;
    }

    div.banner img {
        height: 50%;
        max-height: 80px;
    }

    .nav-title {
        display: none;
    }

    div.stats {
        flex-direction: column;
        width: 100%;
        height: 100%;
        margin-top: 3%;
    }

    div.banner-text h1 {
        margin: 0;
        font-weight: 800;
        font-size: 2.5rem;
        color: var(--banner-color);
    }
}