:root {
    /* Color Palette */
    --obsidian-black: #0B0C10;
    --titanium-grey: #1F2833;
    --caramel-amber: #D98943;
    --cyber-blue: #00E5FF;
    --text-light: #F5F5F5;
}

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

body,
html {
    width: 100%;
    height: 100%;
    background-color: var(--obsidian-black);
    color: var(--text-light);
    font-family: 'Montserrat', sans-serif;
    overflow-x: hidden;
    overflow-y: hidden;
    /* Lock scroll for hero showcase */
}

/* Hero Section */
.hero {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--obsidian-black) 0%, var(--titanium-grey) 100%);
    z-index: 1;
}

/* Background Canvas */
#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

/* Dramatic Overlays */
.gradient-overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 3;
    pointer-events: none;
}

.gradient-overlay.left {
    left: 0;
    width: 40%;
    background: radial-gradient(circle at left center, rgba(0, 229, 255, 0.03) 0%, transparent 70%);
}

.gradient-overlay.right {
    right: 0;
    width: 40%;
    background: radial-gradient(circle at right center, rgba(217, 137, 67, 0.06) 0%, transparent 70%);
}

/* Content Container */
.content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 2rem;
}

/* Typography */
.slogan {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    pointer-events: none;
}

.slogan .code {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 4.5rem);
    font-weight: 300;
    letter-spacing: 0.2em;
    color: #FFFFFF;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.slogan .brew {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: clamp(2.5rem, 5vw, 5.5rem);
    font-weight: 400;
    color: var(--caramel-amber);
    text-shadow: 0 0 30px rgba(217, 137, 67, 0.3);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) 1s forwards;
    /* 1s delay */
}

.slogan .zh {
    display: inline-block;
    font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
    font-size: 0.55em;
    letter-spacing: 0.1em;
    margin-left: 15px;
    font-weight: 300;
    font-style: normal;
    /* Prevent Chinese text from being italicized in .brew */
    vertical-align: middle;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.6;
    animation: hover 2s ease-in-out infinite alternate;
}

.scroll-indicator span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

.scroll-indicator .line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.7), transparent);
}

@keyframes hover {
    from {
        opacity: 0.4;
        transform: translate(-50%, -5px);
    }

    to {
        opacity: 0.8;
        transform: translate(-50%, 5px);
    }
}