/* 
   ECOSAN GLOBAL - INDUSTRIAL DESIGN SYSTEM 
   Methodology: CUBE CSS (Composition, Utility, Block, Exception)
*/

:root {
    /* Palette */
    --c-dark: #111111;
    --c-light: #F4F4F0;
    --c-white: #FFFFFF;
    --c-accent: #FF4D00; /* Safety Orange */
    --c-accent-hover: #CC3D00;
    --c-border: rgba(17, 17, 17, 0.1);
    
    /* Typography */
    --ff-primary: 'Manrope', -apple-system, sans-serif;
    --fs-h1: clamp(2.5rem, 5vw + 1rem, 6rem);
    --fs-h2: clamp(2rem, 4vw + 1rem, 4rem);
    --fs-h3: clamp(1.25rem, 2vw + 0.5rem, 2rem);
    --fs-body: 1rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-s: 1rem;
    --space-m: 2rem;
    --space-l: 4rem;
    --space-xl: 8rem;
    
    /* Layout */
    --container-width: 1400px;
    --header-height: 80px;
}

/* RESET & BASE */
*, *::before, *::after {
    box-sizing: border_box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--ff-primary);
    background-color: var(--c-light);
    color: var(--c-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* UTILITIES */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-s);
}

.flow > * + * {
    margin-top: var(--space-m);
}

.text-accent { color: var(--c-accent); }
.bg-dark { background-color: var(--c-dark); color: var(--c-white); }
.bg-white { background-color: var(--c-white); }

/* COMPONENTS */

/* Header */
.site-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-m);
    border-bottom: 1px solid var(--c-border);
    background: var(--c-light);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.brand {
    font-weight: 800;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand span { color: var(--c-accent); }

.nav-list {
    display: none;
}

@media (min-width: 768px) {
    .nav-list {
        display: flex;
        gap: var(--space-m);
        font-weight: 500;
        text-transform: uppercase;
        font-size: 0.875rem;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75em 1.5em;
    background: var(--c-dark);
    color: var(--c-white);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--c-accent);
}

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

.btn--outline:hover {
    background: var(--c-dark);
    color: var(--c-white);
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: grid;
    place-items: center;
    position: relative;
    border-bottom: 1px solid var(--c-border);
    overflow: hidden;
}

.hero__content {
    text-align: center;
    max-width: 900px;
    z-index: 2;
}

.hero h1 {
    font-size: var(--fs-h1);
    line-height: 0.9;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-m);
}

.hero p {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: var(--space-m);
    max-width: 60ch;
    margin-inline: auto;
}

.hero__bg-text {
    position: absolute;
    font-size: 20vw;
    font-weight: 900;
    color: rgba(0,0,0,0.03);
    z-index: 1;
    white-space: nowrap;
    pointer-events: none;
}

/* Ticker */
.ticker-wrap {
    background: var(--c-accent);
    color: var(--c-dark);
    overflow: hidden;
    padding: var(--space-xs) 0;
    font-weight: 700;
    text-transform: uppercase;
}

.ticker {
    display: flex;
    white-space: nowrap;
    animation: ticker 20s linear infinite;
}

.ticker__item {
    padding-right: var(--space-l);
}

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

/* Grid Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1px; /* For border effect */
    background: var(--c-border);
    border: 1px solid var(--c-border);
}

.card {
    background: var(--c-white);
    padding: var(--space-m);
    height: 100%;
    transition: background 0.3s;
}

.card:hover {
    background: #fafafa;
}

.card__icon {
    font-size: 3rem;
    color: var(--c-accent);
    margin-bottom: var(--space-s);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

/* Stats Section */
.stats {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--c-border);
}

.stat-item {
    flex: 1 1 200px;
    padding: var(--space-l) var(--space-m);
    text-align: center;
    border-right: 1px solid var(--c-border);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--c-accent);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Catalog */
.catalog-item {
    position: relative;
    border-bottom: 1px solid var(--c-border);
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .catalog-item {
        grid-template-columns: 1fr 1fr;
    }
    .catalog-item:nth-child(even) .catalog-img {
        order: 2;
    }
}

.catalog-info {
    padding: var(--space-l);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.catalog-img {
    background-color: #e0e0e0;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #bbb;
}

/* Contact Form */
.contact-section {
    padding: var(--space-xl) 0;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-l);
}

@media (min-width: 900px) {
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.form-wrapper {
    background: var(--c-white);
    padding: var(--space-m);
    border: 1px solid var(--c-border);
}

.form-group {
    margin-bottom: var(--space-s);
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    background: #f9f9f9;
    font-family: inherit;
    font-size: 1rem;
}

.form-control:focus {
    outline: 2px solid var(--c-accent);
    border-color: transparent;
}

/* Footer */
.site-footer {
    background: var(--c-dark);
    color: #888;
    padding: var(--space-l) 0;
    font-size: 0.875rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-l);
    margin-bottom: var(--space-l);
}

.footer-col h4 {
    color: var(--c-white);
    margin-bottom: var(--space-s);
    text-transform: uppercase;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

/* Utilities */
.section-title {
    margin-bottom: var(--space-l);
    border-left: 5px solid var(--c-accent);
    padding-left: var(--space-s);
}

/* 404 */
.error-container {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}