/* ============================================
   ANTISCHIUMA.COM - Landing Page Styles
   Tattika Environmental Solutions
   ============================================ */

:root {
    --color-primary: #2d7a3e;
    --color-primary-dark: #1e5a2d;
    --color-primary-light: #3d9a4e;
    --color-accent: #e8f5e9;
    --color-dark: #1a2e1f;
    --color-text: #2d3a2f;
    --color-text-muted: #5a6b5d;
    --color-bg: #f8fbf8;
    --color-white: #ffffff;
    --color-ebay: #e53238;
    --color-ebay-hover: #c42a2f;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --shadow-sm: 0 2px 8px rgba(45, 122, 62, 0.08);
    --shadow-md: 0 4px 20px rgba(45, 122, 62, 0.12);
    --shadow-lg: 0 8px 40px rgba(45, 122, 62, 0.15);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }
}

/* Breadcrumb */
.breadcrumb {
    background: var(--color-white);
    padding: 12px 0;
    font-size: 0.875rem;
    border-bottom: 1px solid rgba(45, 122, 62, 0.1);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--color-text-muted);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

@media (max-width: 600px) {
    .breadcrumb {
        padding: 10px 0;
        font-size: 0.8rem;
    }
}

/* Header */
.header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
}

.logo img {
    height: 44px;
    width: auto;
}

.nav {
    display: flex;
    gap: 24px;
}

.nav a {
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 4px;
}

.nav a:hover {
    color: var(--color-primary-dark);
}

@media (max-width: 600px) {
    .header-inner {
        padding: 12px 16px;
    }
    .logo img {
        height: 38px;
    }
    .nav {
        gap: 16px;
    }
    .nav a {
        font-size: 0.9rem;
    }
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 40px 24px 48px;
    text-align: center;
}

@media (max-width: 600px) {
    .hero {
        padding: 32px 16px 40px;
    }
    .hero h1 {
        font-size: 1.5rem;
    }
    .hero-subtitle {
        font-size: 0.95rem;
    }
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 12px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 1.15rem;
    opacity: 0.95;
    max-width: 680px;
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    min-height: 48px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

@media (max-width: 600px) {
    .btn {
        padding: 12px 20px;
        min-height: 44px;
        font-size: 0.9rem;
    }
}

.btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-ebay {
    background: var(--color-ebay);
    color: var(--color-white);
}

.btn-ebay:hover {
    background: var(--color-ebay-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(229, 50, 56, 0.4);
}

.btn-info {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-info:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Products */
.products {
    padding: 60px 24px 80px;
}

@media (max-width: 600px) {
    .products {
        padding: 40px 16px 60px;
    }
}

.products h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 16px;
}

.section-intro {
    text-align: center;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 60px;
}

@media (max-width: 600px) {
    .products h2 {
        font-size: 1.5rem;
    }
    .section-intro {
        margin-bottom: 40px;
        font-size: 0.95rem;
    }
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 48px;
}

@media (max-width: 600px) {
    .product-card {
        margin-bottom: 32px;
    }
}

.product-card:last-child {
    margin-bottom: 0;
}

.product-grid {
    display: flow-root;
}

.product-image {
    background: var(--color-white);
    padding: 1.5rem;
    float: left;
    width: 320px;
    max-width: 38%;
    margin: 0 32px 24px 0;
    border-radius: var(--radius);
}

.product-card:nth-child(even) .product-image {
    float: right;
    margin: 0 0 24px 32px;
}

@media (max-width: 900px) {
    .product-image {
        float: none;
        width: 100%;
        max-width: none;
        margin: 0 0 24px 0;
    }
    .product-card:nth-child(even) .product-image {
        float: none;
        margin: 0 0 24px 0;
    }
}

.product-image img {
    object-fit: contain;
    max-height: 280px;
    width: 100%;
}

.product-content {
    background: var(--color-accent);
    padding: 40px 48px;
}

@media (max-width: 900px) {
    .product-content {
        padding: 32px 24px;
    }
}

.product-content h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 32px;
}

.product-section {
    margin-bottom: 24px;
}

.product-section h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.product-section p,
.product-section ul {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.65;
}

.product-section ul {
    list-style: none;
}

.product-section ul li {
    position: relative;
    padding-left: 1.6em;
}

.product-section ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.tech-specs li::before {
    content: "•";
}

.product-actions {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .product-actions {
        flex-direction: column;
        gap: 10px;
    }
    .product-actions .btn {
        width: 100%;
    }
}

/* FAQ */
.faq {
    background: var(--color-bg);
    padding: 60px 24px;
    border-top: 1px solid rgba(45, 122, 62, 0.1);
}

.faq h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 40px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-dark);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: background var(--transition);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: "+";
    font-size: 1.4rem;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item[open] summary {
    background: var(--color-accent);
    color: var(--color-primary-dark);
}

.faq-item p {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.65;
}

@media (max-width: 600px) {
    .faq {
        padding: 40px 16px;
    }
    .faq-item summary {
        padding: 16px 20px;
        font-size: 0.95rem;
    }
    .faq-item p {
        padding: 0 20px 16px;
    }
}

/* Contact */
.contact {
    background: var(--color-white);
    padding: 60px 24px;
    text-align: center;
    border-top: 1px solid rgba(45, 122, 62, 0.15);
}

@media (max-width: 600px) {
    .contact {
        padding: 40px 16px;
    }
    .contact h2 {
        font-size: 1.5rem;
    }
}

.contact h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 24px;
}

.contact p {
    margin-bottom: 8px;
}

.contact a {
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 24px;
    text-align: center;
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.footer a {
    color: var(--color-accent);
}