/* ========================================
   Ecotenébrios - Landing Page
   Mobile-first, responsive, accessibility-focused
   ======================================== */

/* Root & Variables */
:root {
    --color-bg: #F5F1E8;
    --color-text: #1A1A1A;
    --color-primary: #6B8E71;
    --color-primary-dark: #4a5f4e;
    --color-secondary: #A8C9B5;
    --color-border: #e0dcd0;

    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Poppins', 'Inter', sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;

    --transition: all 0.3s ease;
}

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

/* Header */
.header {
    padding: 8px var(--spacing-sm);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.header-logo {
    height: 40px;
    width: auto;
    display: inline-block;
}

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 12px var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-bg) 0%, #faf8f3 100%);
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 6px;
    align-items: flex-start;
}

.hero-text {
    text-align: center;
    order: 1;
}

.hero-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    min-height: 160px;
    margin: 8px 0;
    width: 100%;
    grid-column: 1;
}

.logo-overlay {
    position: absolute;
    bottom: 16px;
    right: 16px;
    height: 110px;
    width: auto;
    opacity: 0.9;
    z-index: 10;
}

.logo {
    height: 200px;
    width: auto;
    margin-bottom: var(--spacing-xl);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.logo-hero {
    height: 100px;
    width: auto;
    margin-bottom: var(--spacing-md);
    margin-left: auto;
    margin-right: auto;
}

.hero-image-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.headline {
    font-size: 28px;
    color: var(--color-text);
    margin-bottom: 6px;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
}

.subheadline {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 12px;
    font-weight: 600;
    line-height: 1.4;
}

.support-text {
    display: none;
    font-size: 16px;
    color: var(--color-primary);
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.5;
}

@media (min-width: 768px) {
    .support-text {
        display: block;
    }
}

.description-hero {
    display: none;
    font-size: 15px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .description-hero {
        display: block;
    }
}

.description {
    font-size: var(--font-size-base);
    color: #4a4a4a;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-image {
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    margin-bottom: var(--spacing-md);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    max-width: 400px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.btn-hero {
    margin-left: auto;
    margin-right: auto;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    box-shadow: 0 12px 24px rgba(107, 142, 113, 0.35), 0 0 20px rgba(107, 142, 113, 0.15);
    text-decoration: none;
}

.btn-icon {
    font-size: var(--font-size-lg);
}

.btn-icon-img {
    height: 20px;
    width: 20px;
    margin-right: 8px;
    display: inline-block;
    vertical-align: middle;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    padding: calc(var(--spacing-sm) - 2px) calc(var(--spacing-lg) - 2px);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
}

/* Email Signup */
.email-signup {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--color-border);
}

.email-label {
    font-size: var(--font-size-base);
    color: #666;
    margin-bottom: var(--spacing-md);
}

.email-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.email-form input {
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    transition: var(--transition);
    background-color: white;
}

.email-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(107, 142, 113, 0.1);
}

.email-form button {
    width: 100%;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(107, 142, 113, 0.3);
    transition: var(--transition);
    z-index: 999;
    text-decoration: none;
}

.whatsapp-float.visible {
    display: flex;
}

.whatsapp-float:hover {
    background-color: var(--color-primary-dark);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(107, 142, 113, 0.4);
}

.whatsapp-icon {
    height: 32px;
    width: 32px;
    display: block;
}

/* Benefits Section */
.benefits {
    padding: var(--spacing-xl) var(--spacing-sm);
    background-color: white;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.benefits h2 {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: #fafaf9;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    border-color: var(--color-secondary);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.benefit-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.benefit-card p {
    color: #666;
    font-size: 14px;
    margin: 0;
}

/* About Section */
.about {
    padding: var(--spacing-xl) var(--spacing-sm);
    background-color: #fafaf9;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.about-image {
    text-align: center;
}

.raissa-photo {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    display: block;
    margin: 0 auto;
}

.about-text h2 {
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

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

.about-text p {
    color: #666;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.about-signature {
    margin-top: var(--spacing-xl);
    font-style: italic;
    color: var(--color-primary);
    font-weight: 600;
}

/* Products Section */
.products {
    padding: var(--spacing-xl) var(--spacing-sm);
    background-color: white;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.products h2 {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
}

.products-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--color-secondary);
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.product-card h3 {
    padding: var(--spacing-md) var(--spacing-md) 0;
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.product-card p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: #666;
    font-size: 14px;
}

.product-card .btn {
    margin: 0 var(--spacing-md) var(--spacing-md);
    width: calc(100% - 32px);
}

/* FAQ Section */
.faq {
    padding: var(--spacing-xl) var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

.faq h2 {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
}

.faq-container {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    background-color: #fafaf9;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    transition: var(--transition);
}

.faq-question:hover {
    background-color: #f5f1e8;
}

.faq-icon {
    font-size: 20px;
    transition: var(--transition);
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: var(--spacing-md);
    color: #666;
    font-size: 14px;
    margin: 0;
}

/* Trust Section */
.trust {
    padding: var(--spacing-xl) var(--spacing-sm);
    background: linear-gradient(135deg, #f9f7f3 0%, #f5f1e8 100%);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.trust-item {
    text-align: center;
    padding: var(--spacing-md);
}

.trust-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.trust-item p {
    margin: 0;
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.6;
}

.trust-item strong {
    display: block;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

/* Testimonial Section */
.testimonial {
    padding: var(--spacing-xl) var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial h2 {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
}

.testimonial-card {
    background: linear-gradient(135deg, #f9f7f3 0%, white 100%);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    color: var(--color-text);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.testimonial-author {
    text-align: right;
}

.author-name {
    font-weight: 600;
    color: var(--color-primary);
    margin: 0;
}

.author-pet {
    font-size: 14px;
    color: #888;
    margin: 0;
}

/* Footer */
.footer {
    background-color: #f0ebe1;
    color: var(--color-text);
    padding: var(--spacing-xl) var(--spacing-sm);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto var(--spacing-lg);
}

.footer-section h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    margin-bottom: var(--spacing-xs);
    font-size: 14px;
}

.footer-section a {
    color: var(--color-primary);
    font-weight: 600;
}

.footer-bottom {
    text-align: center;
    font-size: 14px;
    color: #888;
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Tablet & Desktop Breakpoints
   ======================================== */

@media (min-width: 768px) {
    :root {
        --font-size-3xl: 56px;
        --font-size-2xl: 40px;
    }

    .header {
        padding: var(--spacing-lg) var(--spacing-xl);
    }

    .header-logo {
        height: 90px;
    }

    .hero {
        padding: var(--spacing-xl);
    }

    .hero-content {
        max-width: 1200px;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
        gap: var(--spacing-xl);
    }

    .hero-text {
        text-align: left;
    }

    .hero-content {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        gap: var(--spacing-xl);
    }

    .headline {
        grid-column: 1;
        grid-row: 1;
        text-align: left;
    }

    .hero-image-container {
        grid-column: 2;
        grid-row: 1 / 3;
        min-height: 550px;
    }

    .hero-text {
        grid-column: 1;
        grid-row: 2;
        text-align: left;
    }

    .hero-text .btn-hero {
        margin-left: 0;
        margin-right: auto;
    }

    .hero-image-container {
        display: flex;
        justify-content: flex-end;
        order: 2;
        min-height: 500px;
    }

    .logo-overlay {
        height: 140px;
        bottom: 20px;
        right: 20px;
    }

    .logo {
        height: 280px;
    }

    .logo-hero {
        height: 140px;
    }

    .headline {
        font-size: var(--font-size-3xl);
    }

    .benefits-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .raissa-photo {
        max-width: 100%;
    }

    .products-gallery {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .trust {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .subheadline {
        font-size: var(--font-size-xl);
    }

    .description {
        font-size: var(--font-size-lg);
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

    .btn-primary {
        width: auto;
        padding: var(--spacing-sm) var(--spacing-xl);
    }

    .email-form {
        flex-direction: row;
        max-width: 500px;
    }

    .email-form input {
        flex: 1;
    }

    .email-form button {
        width: auto;
        flex: 0 0 auto;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: var(--spacing-xl) var(--spacing-xl);
    }

    .hero-content {
        max-width: 1200px;
    }

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

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

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }

    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .products-gallery {
        grid-template-columns: 1fr 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .trust {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .whatsapp-float {
        display: none;
    }
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for keyboard navigation */
.btn:focus-visible,
.email-form input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .footer {
        display: none;
    }

    .hero {
        min-height: auto;
    }
}