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

:root {
    --green-50: #f0fdf4;
    --green-100: #dcfce7;
    --green-200: #bbf7d0;
    --green-300: #86efac;
    --green-400: #4ade80;
    --green-500: #22c55e;
    --green-600: #16a34a;
    --green-700: #15803d;
    --green-800: #166534;
    --green-900: #14532d;
    --earth-50: #faf8f5;
    --earth-100: #f0ebe4;
    --earth-200: #e2d5c5;
    --earth-800: #4a3728;
    --earth-900: #2d1f14;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --font-main: 'Montserrat', sans-serif;
    --font-display: 'Playfair Display', serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -4px rgba(0,0,0,.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.08), 0 8px 10px -6px rgba(0,0,0,.04);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-accent {
    color: var(--green-600);
}

/* ========== NAVBAR ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,.05);
    transition: all .3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-bio { color: var(--green-600); }
.logo-mulch { color: var(--earth-800); }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    font-size: .875rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: color .2s;
    position: relative;
}

.nav-menu a:hover { color: var(--green-600); }

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green-500);
    transition: width .3s;
}

.nav-menu a:hover::after { width: 100%; }

.nav-cta {
    background: var(--green-600) !important;
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 100px;
    font-weight: 600 !important;
    transition: background .2s, transform .2s !important;
}

.nav-cta:hover {
    background: var(--green-700) !important;
    transform: translateY(-1px);
}

.nav-cta::after { display: none !important; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all .3s;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 100px;
    font-family: var(--font-main);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .3s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--green-600);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(22,163,74,.3);
}

.btn-primary:hover {
    background: var(--green-700);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22,163,74,.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,.4);
}

.btn-outline:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.7);
}

.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* ========== HERO ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--green-900) 0%, var(--earth-900) 50%, var(--green-800) 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(34,197,94,.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(74,222,128,.1) 0%, transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-3%, -3%); }
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(74,222,128,.3);
    border-radius: 50%;
    animation: float linear infinite;
}

@keyframes float {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    z-index: 2;
}

.hero-tag {
    display: inline-block;
    background: rgba(74,222,128,.15);
    color: var(--green-300);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(74,222,128,.2);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
    font-weight: 700;
}

.hero-title .text-accent {
    color: var(--green-400);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: rgba(255,255,255,.7);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--green-400);
}

.stat-symbol {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--green-400);
}

.stat-label {
    display: block;
    font-size: .8rem;
    color: rgba(255,255,255,.5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-scroll span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,.3);
    border-radius: 12px;
    position: relative;
}

.hero-scroll span::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255,255,255,.5);
    border-radius: 4px;
    animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(16px); opacity: 0; }
}

/* ========== SECTIONS ========== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    color: var(--green-600);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ========== PROBLEM SECTION ========== */
.section-problem {
    background: var(--gray-50);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.problem-list {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.problem-list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.problem-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #fef2f2;
    color: #ef4444;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: .85rem;
    font-weight: 700;
}

.problem-list li strong {
    display: block;
    margin-bottom: 4px;
    color: var(--gray-800);
}

.problem-list li p {
    font-size: .9rem;
    color: var(--gray-500);
}

.problem-visual {
    display: flex;
    gap: 20px;
}

.comparison-card {
    flex: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--white);
    transition: transform .3s;
}

.comparison-card:hover { transform: translateY(-4px); }

.comparison-card.featured {
    box-shadow: 0 20px 40px rgba(22,163,74,.15);
    transform: scale(1.03);
}

.comparison-card.featured:hover { transform: scale(1.03) translateY(-4px); }

.comp-header {
    padding: 16px;
    text-align: center;
    font-weight: 700;
    font-size: .9rem;
    letter-spacing: .5px;
}

.comp-plastic { background: #fef2f2; color: #dc2626; }
.comp-bio { background: var(--green-100); color: var(--green-700); }

.comp-body { padding: 24px; }

.comp-price {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.comp-price small {
    font-size: .7rem;
    font-weight: 500;
    color: var(--gray-400);
}

.comp-body ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.comp-body ul li {
    font-size: .85rem;
    color: var(--gray-600);
    padding-left: 20px;
    position: relative;
}

.comp-plastic + .comp-body ul li::before {
    content: '\2716';
    position: absolute;
    left: 0;
    color: #ef4444;
    font-size: .7rem;
}

.featured .comp-body ul li::before {
    content: '\2714';
    position: absolute;
    left: 0;
    color: var(--green-500);
    font-size: .7rem;
}

/* ========== PRODUCT FEATURES ========== */
.section-product {
    background: var(--white);
}

.product-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all .3s ease;
}

.feature-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-xl);
    border-color: var(--green-200);
    transform: translateY(-4px);
}

.feature-icon {
    width: 52px;
    height: 52px;
    color: var(--green-600);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--gray-900);
}

.feature-card p {
    font-size: .9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ========== BENEFITS ========== */
.section-benefits {
    background: linear-gradient(180deg, var(--green-50) 0%, var(--white) 100%);
}

.benefits-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: center;
}

.benefit-item {
    display: flex;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.benefit-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--green-200);
    line-height: 1;
    flex-shrink: 0;
}

.benefit-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--gray-900);
}

.benefit-item p {
    font-size: .9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.benefits-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.eco-circle {
    position: relative;
    width: 300px;
    height: 300px;
}

.eco-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid var(--green-200);
    animation: pulse 3s ease-in-out infinite;
}

.ring-1 {
    inset: 0;
    border-color: var(--green-100);
    animation-delay: 0s;
}

.ring-2 {
    inset: 30px;
    border-color: var(--green-200);
    animation-delay: .5s;
}

.ring-3 {
    inset: 60px;
    border-color: var(--green-300);
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: .5; }
    50% { transform: scale(1.05); opacity: 1; }
}

.eco-center {
    position: absolute;
    inset: 90px;
    background: linear-gradient(135deg, var(--green-500), var(--green-700));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 8px 32px rgba(22,163,74,.3);
}

.eco-icon {
    font-size: 2rem;
    margin-bottom: 4px;
}

.eco-text {
    font-size: .7rem;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.3;
}

/* ========== RESULTS ========== */
.section-results {
    background: var(--gray-900);
    color: var(--white);
}

.section-results .section-tag { color: var(--green-400); }
.section-results .section-title { color: var(--white); }
.section-results .section-title .text-accent { color: var(--green-400); }
.section-results .section-desc { color: var(--gray-400); }

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.result-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all .3s;
}

.result-card:hover {
    background: rgba(255,255,255,.08);
    transform: translateY(-4px);
}

.result-card-highlight {
    background: rgba(34,197,94,.1);
    border-color: rgba(34,197,94,.2);
}

.result-crop {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--green-400);
    margin-bottom: 16px;
}

.result-value {
    font-size: 3rem;
    font-weight: 900;
    display: block;
    line-height: 1;
    background: linear-gradient(135deg, var(--green-400), var(--green-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-label {
    display: block;
    font-size: .85rem;
    color: var(--gray-400);
    margin-top: 4px;
    margin-bottom: 24px;
}

.result-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,.1);
}

.result-row {
    display: flex;
    justify-content: space-between;
    font-size: .85rem;
    color: var(--gray-400);
}

.result-row strong { color: var(--white); }

.result-note {
    margin-top: 16px;
    font-size: .75rem;
    color: var(--gray-500);
    font-style: italic;
}

/* ========== APPLICATION ========== */
.section-application {
    background: var(--white);
}

.app-methods {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.app-card {
    text-align: center;
    padding: 36px 20px;
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    transition: all .3s;
}

.app-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-xl);
    border-color: var(--green-200);
    transform: translateY(-4px);
}

.app-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    color: var(--green-600);
}

.app-icon svg {
    width: 100%;
    height: 100%;
}

.app-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.app-card p {
    font-size: .85rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.app-steps {
    background: linear-gradient(135deg, var(--green-600), var(--green-800));
    border-radius: var(--radius-xl);
    padding: 48px;
    color: var(--white);
}

.app-steps-title {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 40px;
    font-weight: 700;
}

.steps-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.step {
    text-align: center;
    flex: 1;
    max-width: 220px;
}

.step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0 auto 16px;
    border: 2px solid rgba(255,255,255,.3);
}

.step h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.step p {
    font-size: .85rem;
    opacity: .8;
    line-height: 1.5;
}

.step-arrow {
    font-size: 1.5rem;
    opacity: .5;
    flex-shrink: 0;
}

/* ========== ABOUT ========== */
.section-about {
    background: var(--earth-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.about-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.value-item {
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--green-500);
}

.value-item h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--gray-900);
}

.value-item p {
    font-size: .9rem;
    color: var(--gray-500);
}

.about-team h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.team-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.team-member {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.member-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--green-500), var(--green-700));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .85rem;
    flex-shrink: 0;
}

.team-member h4 {
    font-size: .95rem;
    font-weight: 700;
    color: var(--gray-900);
}

.team-member p {
    font-size: .8rem;
    color: var(--gray-500);
}

.team-member span {
    font-size: .75rem;
    color: var(--green-600);
    font-weight: 500;
}

.partners {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.partners > p {
    font-size: .85rem;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.partner-logos {
    display: flex;
    gap: 16px;
}

.partner {
    padding: 10px 20px;
    background: var(--white);
    border-radius: var(--radius-sm);
    font-size: .8rem;
    font-weight: 600;
    color: var(--gray-600);
    box-shadow: var(--shadow-sm);
}

/* ========== CTA ========== */
.section-cta {
    background: linear-gradient(135deg, var(--green-600), var(--green-800));
    padding: 80px 0;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content .text-accent { color: var(--green-200); }

.cta-content p {
    color: rgba(255,255,255,.7);
    margin-bottom: 32px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.section-cta .btn-primary {
    background: var(--white);
    color: var(--green-700);
    box-shadow: 0 4px 14px rgba(0,0,0,.15);
}

.section-cta .btn-primary:hover {
    background: var(--green-50);
    transform: translateY(-2px);
}

/* ========== CONTACT ========== */
.section-contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
}

.contact-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--green-50);
    color: var(--green-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-item strong {
    display: block;
    font-size: .85rem;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.contact-item p {
    font-size: .9rem;
    color: var(--gray-500);
}

/* ========== FORM ========== */
.contact-form-wrapper {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--gray-100);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: .9rem;
    color: var(--gray-800);
    background: var(--white);
    transition: border-color .2s, box-shadow .2s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--green-400);
    box-shadow: 0 0 0 3px rgba(74,222,128,.15);
}

.form-group textarea { resize: vertical; }

/* ========== FOOTER ========== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand p {
    margin-top: 16px;
    font-size: .9rem;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: .85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: .9rem;
    color: var(--gray-400);
    transition: color .2s;
}

.footer-links a:hover { color: var(--green-400); }

.footer-contact p {
    font-size: .9rem;
    margin-bottom: 8px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: .8rem;
    color: var(--gray-500);
}

/* ========== ANIMATIONS ========== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .problem-grid,
    .benefits-layout,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-features,
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-methods {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: transform .3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .product-features,
    .results-grid,
    .app-methods {
        grid-template-columns: 1fr;
    }

    .problem-visual {
        flex-direction: column;
    }

    .comparison-card.featured {
        transform: none;
    }

    .steps-row {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .hero-stats {
        gap: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .app-steps {
        padding: 32px 24px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .benefits-visual {
        min-height: 280px;
    }

    .eco-circle {
        width: 240px;
        height: 240px;
    }

    .eco-center {
        inset: 72px;
    }

    .ring-2 { inset: 24px; }
    .ring-3 { inset: 48px; }
}