@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@700&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-color: #F4F4F0;
    --text-color: #111111;
    --accent-color: #4F46E5;
    --sidebar-bg: #F4F4F0;
    --sidebar-text: #111111;
    --border-width: 2px;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    overflow-x: hidden;
    /* Subtle noise texture for a raw, tactile aesthetic */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
}

.layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 25%;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: var(--border-width) solid var(--text-color);
    z-index: 100;
}

.logo {
    padding: 3rem 2.5rem;
}

.logo a {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: -0.05em;
    line-height: 1;
    display: block;
}

.nav-links {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--sidebar-text);
    text-transform: uppercase;
    padding: 1.5rem 2.5rem;
    display: block;
    transition: transform 0.3s ease, color 0.3s ease;
    letter-spacing: -1px;
}

.nav-links a:hover {
    color: var(--accent-color);
    transform: translateX(10px);
}

.social-links {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    background: var(--sidebar-bg);
}

.social-links a {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    color: rgba(17, 17, 17, 0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: color 0.2s;
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Main Content */
.content {
    margin-left: 25%;
    width: 75%;
}

/* Hero Section */
.hero {
    height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 4rem;
    position: relative;
    overflow: hidden;
}

.kinetic-text {
    font-family: var(--font-heading);
    font-size: 12vw;
    font-weight: 700;
    line-height: 0.9;
    text-transform: uppercase;
    display: flex;
    flex-direction: column;
    letter-spacing: -0.03em;
    width: 100%;
    color: var(--text-color);
}

.kinetic-text span:nth-child(1) {
    align-self: flex-start;
}

.kinetic-text span:nth-child(2) {
    align-self: center;
    color: var(--text-color);
    transition: color 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: default;
}

.kinetic-text span:nth-child(2):hover {
    color: var(--accent-color);
    transform: scale(1.02) skewX(-6deg);
}

.kinetic-text span:nth-child(3) {
    align-self: flex-end;
}

/* Marquee Section */
.marquee-container {
    border-top: var(--border-width) solid var(--text-color);
    background-color: var(--accent-color);
    padding: 1.5rem 0;
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.marquee {
    display: inline-block;
    animation: scroll 20s linear infinite;
}

.marquee span {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    margin-right: 3rem;
    letter-spacing: -1px;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Portfolio Section */
.portfolio {
    padding: 8rem 4rem;
    background-color: #ffffff;
    border-bottom: var(--border-width) solid var(--text-color);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 6rem;
    text-transform: uppercase;
    margin-bottom: 6rem;
    line-height: 0.9;
    letter-spacing: -0.04em;
    border-bottom: var(--border-width) solid var(--text-color);
    padding-bottom: 2rem;
    display: inline-block;
}

/* Staggered Grid (Advanced 12-column setup) */
.staggered-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 3rem;
}

.grid-item {
    position: relative;
    border: var(--border-width) solid var(--text-color);
    overflow: hidden;
    background-color: var(--text-color);
    box-shadow: 12px 12px 0px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.grid-item:hover {
    transform: translate(-8px, -8px);
    box-shadow: 20px 20px 0px var(--accent-color);
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(100%) contrast(1.2);
    opacity: 0.8;
    transition: all 0.5s ease;
}

.grid-item:hover img {
    filter: grayscale(0%) contrast(1);
    opacity: 1;
    transform: scale(1.05);
}

.item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: var(--text-color);
    color: #fff;
    transform: translateY(101%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-top: var(--border-width) solid var(--accent-color);
}

.grid-item:hover .item-overlay {
    transform: translateY(0);
}

.item-overlay h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: -1px;
}

/* Grid staggering layout */
.item-1 { grid-column: 1 / 10; height: 65vh; }
.item-2 { grid-column: 8 / 13; height: 75vh; margin-top: -8rem; z-index: 2; }
.item-3 { grid-column: 1 / 6; height: 60vh; margin-top: -12rem; }
.item-4 { grid-column: 6 / 13; height: 50vh; margin-top: 4rem; }
.item-5 { grid-column: 3 / 11; height: 80vh; margin-top: 6rem; }


/* Mobile Navigation Toggle */
.menu-toggle {
    display: none;
}


/* Responsive Design */
@media (max-width: 1200px) {
    .kinetic-text { font-size: 11vw; }
    .section-title { font-size: 4rem; }
}

@media (max-width: 1024px) {
    .sidebar { width: 30%; }
    .content { margin-left: 30%; width: 70%; }
    .nav-links a { font-size: 2rem; padding: 1.5rem 2rem; }
    
    .staggered-grid {
        display: flex;
        flex-direction: column;
        gap: 3rem;
    }
    .grid-item {
        height: 60vh !important;
        margin-top: 0 !important;
    }
}

@media (max-width: 768px) {
    .layout { flex-direction: column; }
    
    .sidebar {
        width: 100%;
        height: 80px;
        position: fixed;
        bottom: 0;
        top: auto;
        flex-direction: row;
        align-items: center;
        padding: 0 2rem;
        border-right: none;
        border-top: var(--border-width) solid var(--text-color);
    }
    
    .logo { padding: 0; border: none; }
    .logo a { font-size: 2rem; }
    
    .nav-links {
        display: none;
        position: absolute;
        bottom: 80px;
        left: 0;
        width: 100%;
        background-color: var(--sidebar-bg);
        border-top: var(--border-width) solid var(--text-color);
        padding: 0;
    }
    
    .sidebar.active .nav-links { display: flex; }
    
    .nav-links a { border-bottom: none; }
    
    .social-links { display: none; }
    
    .menu-toggle {
        display: flex;
        background: none;
        border: none;
        cursor: pointer;
        flex-direction: column;
        gap: 6px;
        z-index: 105;
    }
    
    .menu-toggle span {
        width: 35px;
        height: 3px;
        background-color: var(--sidebar-text);
        transition: 0.3s;
    }
    
    .sidebar.active .menu-toggle span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .sidebar.active .menu-toggle span:nth-child(2) { opacity: 0; }
    .sidebar.active .menu-toggle span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

    .content { margin-left: 0; width: 100%; padding-bottom: 80px; }
    .hero { height: 85vh; padding: 0 2rem; }
    .kinetic-text { font-size: 16vw; }
    
    .portfolio { padding: 4rem 2rem; }
    .section-title { font-size: 3rem; margin-bottom: 3rem; }
}

/* Elm St Digital Return Badge */
.elm-st-return-badge {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background-color: #111827;
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 50px;
  font-family: sans-serif;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  z-index: 9999;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.elm-st-return-badge:hover {
  background-color: #374151;
  transform: translateY(-2px);
}