@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

:root {
    /* Brand Colors */
    --color-moss: #222B1F;
    --color-beam: #D98738;
    --color-concrete: #758074;
    --color-dust: #C0C4C3;
    --color-white: #FFFFFF;
    --color-off-white: #FAFAFA;
    
    /* Typography */
    --font-primary: 'Barlow', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-s: 1rem;
    --space-m: 2rem;
    --space-l: 4rem;
    --space-xl: 8rem;

    /* Effects */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 0px; /* Industrial hard edges */
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-moss);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Material Design Navigation Rail */
.side-rail {
    width: 80px;
    height: 100vh;
    background-color: rgba(34, 43, 31, 0.95);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-m) 0;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.rail-logo {
    width: 40px;
    margin-bottom: var(--space-l);
}

.rail-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-m);
}

.nav-item {
    color: var(--color-dust);
    text-decoration: none;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.6;
    transition: var(--transition-smooth);
}

.nav-item i {
    font-size: 1.5rem;
}

.nav-item:hover, .nav-item.active {
    opacity: 1;
    color: var(--color-beam);
}

.main-content {
    flex: 1;
    margin-left: 80px;
}

/* Sections */
section {
    padding: var(--space-xl) var(--space-l);
    position: relative;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Diagonal Divider Backgrounds */
.section-diagonal {
    clip-path: polygon(0 0, 100% 5%, 100% 100%, 0 95%);
    margin-top: -5vh;
}

.bg-dust { background-color: var(--color-dust); color: var(--color-moss); }
.bg-beam { background-color: var(--color-beam); color: var(--color-moss); }
.bg-concrete { background-color: var(--color-concrete); color: var(--color-white); }
.bg-moss { background-color: var(--color-moss); color: var(--color-white); }

/* Typography Styles */
h1 {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 800;
    text-transform: uppercase;
    line-height: 0.9;
    margin-bottom: var(--space-m);
}

h2 {
    font-size: 3rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: var(--space-s);
}

.accent-text {
    color: var(--color-beam);
}

/* Hero Section */
.hero {
    background-image: linear-gradient(rgba(34, 43, 31, 0.7), rgba(34, 43, 31, 0.7)), url('https://images.unsplash.com/photo-1541888941259-792739460a3b?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    padding-top: var(--space-xl);
}

/* Color Palette Cards (DocuSign Style) */
.palette-grid {
    display: flex;
    flex-direction: column;
    gap: 1px;
    margin-top: var(--space-m);
}

.color-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-m);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.color-bar:hover {
    padding-left: calc(var(--space-m) + 20px);
}

.color-info {
    display: flex;
    flex-direction: column;
}

.color-name {
    font-weight: 700;
    font-size: 1.5rem;
    text-transform: uppercase;
}

.color-specs {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Halftone Texture Overlay */
.halftone {
    position: relative;
}

.halftone::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, #000 1px, transparent 1px);
    background-size: 6px 6px;
    opacity: 0.1;
    pointer-events: none;
}

/* Grid for Logos and Graphics */
.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-m);
}

.asset-card {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-m);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-display {
    background: var(--color-moss);
    padding: var(--space-l);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-s);
}

.copy-toast {
    position: fixed;
    bottom: var(--space-m);
    right: var(--space-m);
    background: var(--color-beam);
    color: var(--color-moss);
    padding: var(--space-s) var(--space-m);
    font-weight: 700;
    transform: translateY(100px);
    transition: var(--transition-smooth);
    z-index: 2000;
}

.copy-toast.show {
    transform: translateY(0);
}

/* Responsive Fixes */
@media (max-width: 768px) {
    .side-rail {
        width: 100%;
        height: 60px;
        flex-direction: row;
        justify-content: space-between;
        padding: 0 var(--space-s);
    }
    
    .rail-nav {
        flex-direction: row;
        gap: var(--space-s);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    section {
        padding: var(--space-l) var(--space-s);
    }
    
    h1 { font-size: 4rem; }
}