/* ========================================
   EcoBelesar — Web pública
   Estética: Orgánica / Natural / Premium
   ======================================== */

:root {
    --green-900: #1b4332;
    --green-700: #2d6a4f;
    --green-500: #40916c;
    --green-300: #74c69d;
    --green-100: #d8f3dc;
    --green-50: #f0f7f4;
    --cream: #fdfaf5;
    --cream-dark: #f5efe6;
    --brown: #6b4f3a;
    --brown-light: #a47b5c;
    --text: #2c2c2c;
    --text-light: #666;
    --white: #ffffff;
    --shadow: 0 2px 20px rgba(27, 67, 50, 0.08);
    --shadow-lg: 0 8px 40px rgba(27, 67, 50, 0.12);
    --radius: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Source Sans 3', -apple-system, sans-serif;
    font-size: 17px;
    line-height: 1.7;
    color: var(--text);
    background: var(--cream);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'DM Serif Display', Georgia, serif;
    font-weight: 400;
    line-height: 1.2;
    color: var(--green-900);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 0.8em; }
h3 { font-size: 1.3rem; }

a { color: var(--green-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-500); }

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---- Header / Nav ---- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(253, 250, 245, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(45, 106, 79, 0.1);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo-text {
    font-family: 'DM Serif Display', Georgia, serif;
    font-size: 1.5rem;
    color: var(--green-900);
}
.logo-text strong { color: var(--green-700); }

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    letter-spacing: 0.02em;
    padding: 4px 0;
    position: relative;
}

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

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--green-900);
    transition: var(--transition);
}

/* ---- Hero ---- */
.hero {
    background: linear-gradient(160deg, var(--green-900) 0%, var(--green-700) 50%, var(--green-500) 100%);
    padding: clamp(80px, 12vw, 160px) 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 70%, rgba(116, 198, 157, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 20px;
}

.hero h1 em {
    font-style: normal;
    color: var(--green-300);
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.15rem;
    max-width: 500px;
    margin: 0 auto 32px;
}

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: 'Source Sans 3', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    transition: all var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--green-700);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--green-500);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--cream);
    color: var(--green-700);
    border: 2px solid var(--green-700);
}
.btn-secondary:hover {
    background: var(--green-700);
    color: var(--white);
}

/* ---- Sections ---- */
.section { padding: clamp(60px, 8vw, 100px) 0; }

.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--green-500);
    margin: 16px auto 0;
    border-radius: 2px;
}

/* ---- Features Grid ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 10px;
    color: var(--green-900);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ---- Two Column ---- */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.col-text h2 { margin-bottom: 16px; }
.col-text p { margin-bottom: 16px; color: var(--text-light); }

.image-placeholder {
    background: var(--green-100);
    border-radius: var(--radius);
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

/* ---- CTA Section ---- */
.cta {
    background: var(--green-50);
}

.cta-content {
    text-align: center;
}

.cta-content p {
    color: var(--text-light);
    margin-bottom: 24px;
    font-size: 1.1rem;
}

/* ---- Page Header ---- */
.page-header {
    background: var(--green-900);
    padding: 60px 24px;
    text-align: center;
}

.page-header h1 { color: var(--white); margin-bottom: 8px; }
.page-intro { color: rgba(255, 255, 255, 0.8); font-size: 1.1rem; }

/* ---- Content Narrow ---- */
.content-narrow {
    max-width: 720px;
    margin: 0 auto;
}

.content-narrow h2 { margin-top: 40px; }
.content-narrow p { color: var(--text-light); margin-bottom: 16px; }

/* ---- Products ---- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition);
}
.product-card:hover { transform: translateY(-4px); }

.product-image {
    background: var(--green-100);
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.product-card h3 { padding: 20px 24px 8px; }
.product-card p { padding: 0 24px 24px; color: var(--text-light); font-size: 0.95rem; }

.cta-inline { text-align: center; padding: 40px 0; }
.cta-inline p { margin-bottom: 16px; color: var(--text-light); }

/* ---- Contact ---- */
.contact-layout { align-items: start; }

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

.contact-item {
    display: flex;
    gap: 16px;
    align-items: start;
}
.contact-icon { font-size: 1.5rem; }
.contact-item strong { display: block; color: var(--green-900); }
.contact-item p { color: var(--text-light); font-size: 0.95rem; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--green-900);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #ddd;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--green-500);
    box-shadow: 0 0 0 3px rgba(64, 145, 108, 0.1);
}

/* ---- Footer ---- */
.site-footer {
    background: var(--green-900);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-brand .logo-text { color: var(--white); }
.footer-brand p { margin-top: 12px; font-size: 0.9rem; }

.site-footer h4 {
    color: var(--green-300);
    font-family: 'Source Sans 3', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-links ul { list-style: none; }
.footer-links a { color: rgba(255, 255, 255, 0.7); font-size: 0.9rem; }
.footer-links a:hover { color: var(--white); }
.footer-links li { margin-bottom: 8px; }

.footer-contact p { font-size: 0.9rem; margin-bottom: 4px; }

.footer-bottom {
    margin-top: 40px;
    padding: 20px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--cream);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(45, 106, 79, 0.1);
    }
    .nav-links.open { display: flex; }

    .two-col { grid-template-columns: 1fr; gap: 30px; }
    .footer-container { grid-template-columns: 1fr; gap: 30px; }
    .hero { padding: 60px 24px; }
}