@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --color-primary: #153A26; /* Deep dark green */
    --color-secondary: #4A6B56; /* Sage/Leaf green */
    --color-accent: #111111; /* Sharp black */
    --color-background: #F4F5F3; /* Warm, very light gray/greenish background */
    --color-surface: #FFFFFF;
    --color-surface-alt: #EAECE8; /* Slightly darker surface for contrast */
    --color-text-main: #111111;
    --color-text-muted: #555555;
    --color-border: #D1D5D0;
    --color-error: #D32F2F;
    --color-success: #2E7D32;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --radius: 0px; /* SHARP CORNERS ONLY */
    --grid-gap: 2rem;
    --container-width: 1200px;
    
    /* Animation timings */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: var(--spacing-sm); letter-spacing: -1px; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: var(--spacing-md); letter-spacing: -0.5px; }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); margin-bottom: var(--spacing-sm); }
p { margin-bottom: var(--spacing-sm); font-size: 1.05rem; }

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

a:hover {
    color: var(--color-secondary);
}

/* Layout Utilities - Enhanced Containers */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 3rem); /* Responsive padding for mobile to desktop */
}

.grid {
    display: grid;
    gap: clamp(1.5rem, 4vw, 3rem);
}

/* Auto-fit grids for better mobile experience */
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-up {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

/* Staggering delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-primary);
    color: var(--color-surface);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1.5px;
    font-size: 0.9rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--color-accent);
    z-index: -1;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.btn:hover {
    color: var(--color-surface);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-secondary:hover {
    color: var(--color-surface);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem clamp(1.5rem, 5vw, 3rem);
    max-width: var(--container-width);
    margin: 0 auto;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.nav-links {
    display: none;
    list-style: none;
    gap: 2.5rem;
}

@media (min-width: 1024px) {
    .nav-links { display: flex; align-items: center;}
}

.nav-links a {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-links a:not(.btn):hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    font-size: 1.75rem;
    cursor: pointer;
    color: var(--color-primary);
}

@media (min-width: 1024px) {
    .mobile-menu-btn { display: none; }
}

/* Mobile Nav Overlay */
.mobile-nav {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    width: 100%;
    height: calc(100vh - 73px);
    background-color: var(--color-surface);
    padding: var(--spacing-md);
    z-index: 99;
    overflow-y: auto;
}

.mobile-nav.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    margin-top: 2rem;
}

.mobile-nav a {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hero Section */
.hero {
    padding: clamp(3rem, 10vw, 8rem) 0;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface-alt) 100%);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.3;
    z-index: 0;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    z-index: -1;
    transition: transform var(--transition-normal);
}

.hero-image-wrapper:hover::before {
    transform: translate(10px, 10px);
}

.hero-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    object-fit: cover;
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transition: transform var(--transition-normal);
}

.hero-image-wrapper:hover .hero-image {
    transform: translateY(-10px);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: clamp(4rem, 8vw, 8rem) 0;
    position: relative;
}

.section-bg {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-dark {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

.section-dark h2, .section-dark h3, .section-dark p {
    color: var(--color-surface);
}

.section-title {
    text-align: center;
    max-width: 800px;
    margin: 0 auto clamp(2rem, 5vw, 4rem);
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.card-image-wrapper {
    margin: calc(-1 * clamp(1.5rem, 3vw, 2.5rem)) calc(-1 * clamp(1.5rem, 3vw, 2.5rem)) 1.5rem calc(-1 * clamp(1.5rem, 3vw, 2.5rem));
    overflow: hidden;
}

.card-image-wrapper img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.card:hover .card-image-wrapper img {
    transform: scale(1.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    border-color: var(--color-primary);
}

.card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; width: 100%; height: 4px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.card:hover::after {
    transform: scaleX(1);
}

.card-title {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Usage Scenarios */
.scenario-block {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 6px solid var(--color-primary);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    transition: all var(--transition-normal);
}

.scenario-block:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

/* Lists */
.step-list {
    list-style: none;
    counter-reset: steps;
}

.step-list li {
    position: relative;
    padding-left: 4rem;
    margin-bottom: 2rem;
    min-height: 3rem;
    display: flex;
    align-items: center;
}

.step-list li::before {
    counter-increment: steps;
    content: counter(steps);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3rem;
    height: 3rem;
    background-color: var(--color-primary);
    color: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 5px 15px rgba(21, 58, 38, 0.3);
}

/* Warning Box */
.warning-box {
    background-color: #FFF8E1;
    border: 1px solid #FFE082;
    border-left: 6px solid #FFA000;
    padding: clamp(1.5rem, 3vw, 2.5rem);
}

/* Forms & Checkout */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--color-border);
    font-family: inherit;
    font-size: 1rem;
    border-radius: var(--radius);
    background-color: var(--color-surface);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(21, 58, 38, 0.1);
}

.error-message {
    color: var(--color-error);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
    font-weight: 600;
}

.form-group.has-error .form-control {
    border-color: var(--color-error);
    background-color: #FFEBEE;
}

.form-group.has-error .error-message {
    display: block;
    animation: fadeIn 0.3s ease;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 400;
    cursor: pointer;
}

.checkbox-label input {
    margin-top: 0.35rem;
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--color-primary);
}

/* Checkout Summary */
.checkout-summary {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.summary-row.total {
    font-weight: 700;
    font-size: 1.5rem;
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
    color: var(--color-primary);
}

/* Product Page */
.product-gallery {
    display: grid;
    gap: 1rem;
}

.product-image-main {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.qty-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    width: max-content;
    margin-bottom: 1.5rem;
    background-color: var(--color-surface);
}

.qty-btn {
    background: none;
    border: none;
    padding: 0.75rem 1.25rem;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.qty-btn:hover {
    background-color: var(--color-surface-alt);
}

.qty-input {
    width: 4rem;
    text-align: center;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    padding: 0.75rem 0;
}

/* FAQ */
.faq-list {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    transition: background-color var(--transition-fast);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item:hover {
    background-color: var(--color-surface-alt);
}

.faq-question {
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.faq-answer {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* Image Utilities */
.img-responsive {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Footer */
footer {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: auto;
}

footer a {
    color: var(--color-surface);
    opacity: 0.7;
    position: relative;
}

footer a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--color-surface);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

footer a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

footer a:hover {
    opacity: 1;
}

.footer-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
}

.footer-col h4 {
    color: var(--color-surface);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    letter-spacing: 1px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.75rem;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    border-top: 2px solid var(--color-primary);
    padding: var(--spacing-md);
    z-index: 1000;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.1);
    display: none;
}

.cookie-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .cookie-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.cookie-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}