/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Color Scheme */
    --color-bg:         #F5F2EE;
    --color-surface:    #EDEAE5;
    --color-surface-2:  #FFFFFF;
    --color-border:     #D6D0C8;
    
    --color-ink:        #1A1714;
    --color-text:       #3D3833;
    --color-text-muted: #7A7470;
    
    --color-amber:      #D4820A;
    --color-stone:      #8C7D6A;
    --color-white:      #FFFFFF;
    
    /* Typography */
    --font-display: 'Barlow Condensed', sans-serif;
    --font-body:    'DM Sans', sans-serif;
    --font-mono:    'IBM Plex Mono', monospace;
    
    /* Text Scale */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.5rem;
    --text-2xl:  2rem;
    --text-3xl:  3rem;
    --text-4xl:  4.5rem;
    --text-hero: clamp(3rem, 7vw, 6.5rem);
    
    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    --space-32: 8rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1400px;
    margin-inline: auto;
    padding-inline: clamp(1.5rem, 5vw, 5rem);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background 0.3s ease, border-bottom 0.3s ease;
}

.nav.scrolled {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-lg);
    color: var(--color-ink);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--color-stone);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 1001;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    top: 56px;
    background: var(--color-bg);
    z-index: 999;
    flex-direction: column;
    padding: var(--space-8) var(--space-6);
    border-top: 1px solid var(--color-border);
    gap: var(--space-2);
}

.mobile-menu.open {
    display: flex;
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-3xl);
    color: var(--color-ink);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
    transition: color 0.2s ease;
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

.mobile-nav-link:hover {
    color: var(--color-stone);
}

/* Hero Section */
.hero {
    min-height: 100svh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--color-bg);
    overflow: hidden;
}

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

.hero-bg-image {
    position: absolute;
    inset: 0;
    background-image: url('images/hero_bg.png');
    background-size: cover;
    background-position: center;
    z-index: 0;
    opacity: 0.3;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 80%);
    mask-image: linear-gradient(to right, transparent 0%, black 80%);
}

.hero-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-hero);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 0.95;
    margin-bottom: 0;
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    font-weight: 500;
}

.hero-tags {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

.hero-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.hero-tag-sep {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-stone);
    opacity: 0.6;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-12);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: var(--color-border);
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* Grain Overlay */
.grain-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    opacity: 0.06;
    pointer-events: none;
    z-index: 0;
}

/* Stat Block */
.stat-block {
    background: var(--color-surface);
    padding: var(--space-12) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    align-items: center;
}

.stat-item {
    text-align: center;
    padding: var(--space-4);
    border-right: 1px solid var(--color-border);
}

.stat-item:last-child {
    border-right: none;
}

.stat-number {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-4xl);
    color: var(--color-amber);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* Section Base */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    margin-bottom: var(--space-16);
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: var(--space-2);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-4xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

/* About Section */
.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-16);
}

.about-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-3xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
}

.about-text {
    font-size: var(--text-lg);
    color: var(--color-text);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.highlight-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.highlight-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.highlight-text {
    font-size: var(--text-base);
    color: var(--color-text);
}

.about-visual {
    background: var(--color-surface);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.about-visual img {
    transition: transform 0.7s ease;
}

.about-visual:hover img {
    transform: scale(1.03);
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-border) 100%);
}

/* Products Section */
.products {
    background: var(--color-white);
}

.products-intro {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.product-category {
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border);
}

.category-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-4);
}

.category-text {
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.6;
}

.products-table {
    margin-bottom: var(--space-16);
}

.table-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border-top: 2px solid var(--color-ink);
    border-bottom: 1px solid var(--color-border);
}

.table-header .table-cell {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-4);
    padding: var(--space-4);
    background: transparent;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s ease;
}

.table-row:last-child {
    border-bottom: 2px solid var(--color-ink);
}

.table-row:hover {
    background: var(--color-surface);
}

.table-cell {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text);
}

.table-cell:first-child {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-ink);
}

.aggregate-types {
    margin-top: var(--space-16);
}

.aggregate-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-2xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-8);
}

.aggregate-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    grid-auto-rows: 250px;
    gap: var(--space-6);
}

.aggregate-grid .aggregate-item:first-child {
    grid-row: span 2;
}

.aggregate-grid .aggregate-item:nth-child(4) {
    grid-column: 1 / -1;
}

.aggregate-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-6);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.aggregate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.aggregate-item.has-image {
    padding: 0;
    overflow: hidden;
    position: relative;
}

.aggregate-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
    z-index: 0;
    transition: transform 0.5s ease;
}

.aggregate-item.has-image:hover .aggregate-image {
    transform: scale(1.05);
}

.aggregate-item-content {
    position: absolute;
    inset: 0;
    z-index: 1;
    padding: var(--space-6) var(--space-8);
    background: linear-gradient(to top, rgba(26,23,20,0.85) 0%, rgba(26,23,20,0) 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
}

.aggregate-name {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-3xl);
    color: var(--color-white);
    text-transform: uppercase;
    position: relative;
    z-index: 2;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.aggregate-desc {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-surface);
    position: relative;
    z-index: 2;
}

/* Process Section */
.process {
    background: var(--color-bg);
}

.process-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-3xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-16);
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
}

.process-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-8);
    align-items: start;
}

.step-number {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-4xl);
    color: var(--color-amber);
    line-height: 1;
}

.step-content {
    padding-top: var(--space-2);
}

.step-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-2xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-4);
}

.step-text {
    font-size: var(--text-lg);
    color: var(--color-text);
    line-height: 1.7;
}

/* Quality Section */
.quality {
    background: var(--color-white);
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.quality-item {
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border);
}

.quality-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-4);
}

.quality-text {
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.6;
}

/* Why Us Section */
.why-us {
    background: var(--color-bg);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.why-item {
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border);
}

.why-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-2xl);
    color: var(--color-ink);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-4);
}

.why-text {
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.7;
}

/* FAQ Section */
.faq {
    background: var(--color-white);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-ink);
    text-align: left;
}

.faq-icon {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    color: var(--color-stone);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 var(--space-6) var(--space-6);
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.6;
}

/* Contact Section */
.contact {
    background: var(--color-ink);
    padding: var(--space-32) 0;
}

.contact-content {
    max-width: 800px;
}

.contact-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-4xl);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
}

.contact-text {
    font-size: var(--text-lg);
    color: var(--color-surface);
    margin-bottom: var(--space-12);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.contact-item {
    display: flex;
    gap: var(--space-4);
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    min-width: 100px;
    flex-shrink: 0;
}

.contact-value {
    font-size: var(--text-base);
    color: var(--color-white);
    word-break: break-all;
}

/* Buttons */
.btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.9rem 2rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--color-amber);
    color: #000;
}

.btn-primary:hover {
    background: #b87008;
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-stone);
    color: var(--color-stone);
}

/* Footer */
.footer {
    background: var(--color-ink);
    padding: var(--space-12) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-lg);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-location {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .products-intro {
        grid-template-columns: 1fr;
    }
    
    .quality-grid,
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .aggregate-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 300px;
    }
    .aggregate-grid .aggregate-item:first-child,
    .aggregate-grid .aggregate-item:nth-child(4) {
        grid-row: auto;
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    /* Nav: hide links, show hamburger */
    .nav-links {
        display: none;
    }
    
    .nav-hamburger {
        display: flex;
    }

    /* Prevent any horizontal overflow */
    body {
        overflow-x: hidden;
    }

    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }

    /* Tighter heading line-heights */
    .hero-headline {
        font-size: clamp(2.8rem, 9vw, 3.8rem);
        line-height: 1.05;
    }

    .contact-headline,
    .about-headline,
    .process-headline,
    .section-title {
        line-height: 1.1;
    }

    .section-title {
        font-size: 2.2rem;
    }

    /* Stats: 2x2 grid */
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item {
        border-bottom: 1px solid var(--color-border);
    }
    
    .stat-item:nth-child(even) {
        border-right: none;
    }
    
    .stat-item:nth-child(3),
    .stat-item:nth-child(4) {
        border-bottom: none;
    }

    /* Contact: stack label above value */
    .contact-item {
        flex-direction: column;
        gap: var(--space-1);
    }

    .contact-label {
        min-width: unset;
    }

    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }
    
    .process-step {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    /* Aggregate overlay text — scale down on mobile */
    .aggregate-name {
        font-size: var(--text-xl);
        line-height: 1.1;
    }

    .aggregate-desc {
        font-size: 0.8rem;
    }

    .aggregate-item-content {
        padding: var(--space-4);
    }

    /* Hero tag strip — stack vertically, hide separators */
    .hero-tags {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .hero-tag-sep {
        display: none;
    }

    .hero-tag::before {
        content: '—';
        color: var(--color-stone);
        margin-right: var(--space-2);
        opacity: 0.6;
    }
}