:root {
    --elf-black: #000000;
    --elf-white: #ffffff;
    --elf-red: #ff0000;
    --elf-gray: #f5f5f5;
    --text-main: #000000;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--elf-white);
    color: var(--text-main);
    overflow-x: hidden;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--elf-black);
}

.back-btn {
    color: var(--elf-black);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.back-btn:hover {
    color: var(--elf-red);
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -1px;
}

/* Hero Section */
.hero {
    margin-top: 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 0 5%;
    background: var(--elf-gray);
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.hero p {
    font-size: 1.2rem;
    max-width: 500px;
    margin-bottom: 2rem;
    font-weight: 400;
    line-height: 1.6;
}

.primary-btn {
    background: var(--elf-black);
    color: var(--elf-white);
    border: none;
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.primary-btn:hover {
    background: var(--elf-red);
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 400px;
    height: 400px;
}

.grid-item {
    background: var(--elf-black);
    border-radius: 5px;
    transition: transform 0.3s, background 0.3s;
}

.grid-item:hover {
    transform: scale(0.95);
    background: var(--elf-red);
}

.item1 { background: #333; }
.item2 { background: var(--elf-red); }
.item3 { background: #666; }
.item4 { background: #111; }

/* Shelfie Section */
.shelfie-section {
    padding: 5rem 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #555;
}

.masonry-gallery {
    column-count: 3;
    column-gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 20px;
}

.placeholder-img {
    background: #e0e0e0;
    width: 100%;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    background-image: repeating-linear-gradient(45deg, #d0d0d0 0, #d0d0d0 2px, transparent 2px, transparent 10px);
}

.overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem 1rem 1rem;
    background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, transparent 100%);
    color: white;
    font-weight: 700;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.placeholder-img:hover .overlay {
    transform: translateY(0);
}

footer {
    text-align: center;
    padding: 3rem;
    background: var(--elf-black);
    color: var(--elf-white);
    font-weight: 700;
}

@media (max-width: 900px) {
    .hero { flex-direction: column; text-align: center; padding-top: 4rem; }
    .hero p { margin: 0 auto 2rem; }
    .grid-layout { margin-top: 3rem; }
    .masonry-gallery { column-count: 2; }
}

@media (max-width: 600px) {
    .masonry-gallery { column-count: 1; }
}

/* New Campaigns */
.campaign-section {
    padding: 5rem 5%;
    border-top: 2px solid var(--elf-black);
}

.campaign-body {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.campaign-body.reverse-layout {
    flex-direction: row-reverse;
}

.campaign-text {
    flex: 1;
}

.campaign-text h3 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.campaign-text p {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    border-left: 4px solid var(--elf-red);
    padding-left: 1rem;
}

.campaign-graphic {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 350px;
    background: var(--elf-black);
    color: var(--elf-white);
    font-size: 4rem;
    font-weight: 900;
    border-radius: 10px;
    box-shadow: 10px 10px 0 var(--elf-red);
    transition: transform 0.3s, box-shadow 0.3s;
    width: 100%;
}

.campaign-graphic:hover {
    transform: translate(-5px, -5px);
    box-shadow: 15px 15px 0 var(--elf-red);
}

@media (max-width: 900px) {
    .campaign-body, .campaign-body.reverse-layout {
        flex-direction: column;
        gap: 2rem;
    }
}