:root {
    --bg: #ffffff;
    --card: #ffffff;
    --muted: #6b7280;
    --accent: #0b63d6;
    --accent-contrast: #ffffff;
    --radius: 10px;
    --text: #0b1220;
    --muted-bg: #f6f8fb;
    --max-width: 1100px;
    font-family: Inter, system-ui, Arial, sans-serif;
}

/* Reset */
* {
    box-sizing: border-box
}

html,
body {
    height: 100%
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container centralizado */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem;
}

/* Header */
.site-header {
    background: var(--muted-bg);
    border-bottom: 1px solid #e6eef7;
    position: sticky;
    top: 0;
    z-index: 200
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0
}

.logo img {
    height: 44px;
    display: block
}

.main-nav a {
    margin: 0 0.6rem;
    color: var(--text);
    text-decoration: none;
    font-weight: 600
}

.menu-toggle {
    display: none;
    background: transparent;
    border: 0;
    font-size: 1.2rem;
    cursor: pointer
}

/* Hero */
.hero {
    padding: 2rem 0;
    background: linear-gradient(90deg, #fbfdff, #ffffff)
}

.hero-inner {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    justify-content: center
}

.hero-copy {
    flex: 1;
    max-width: 640px;
    text-align: center
}

.hero-media {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center
}

.hero-media img {
    width: 520px;
    max-width: 100%;
    border-radius: 8px;
    display: block;
    margin: 0 auto
}

/* Typography / buttons */
.muted {
    color: var(--muted)
}

h1,
h2,
h3 {
    margin: 0 0 .5rem
}

p {
    margin: 0 0 .75rem
}

.btn {
    display: inline-block;
    padding: .6rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600
}

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

.btn-ghost {
    background: transparent;
    border: 1px solid #e2e8f0;
    color: var(--text)
}

/* Cards / Grid */
.highlights {
    list-style: disc;
    margin-left: 1rem;
    color: var(--muted);
    display: inline-block;
    text-align: left
}

.card {
    background: var(--card);
    padding: 1rem;
    border-radius: var(--radius);
    box-shadow: 0 6px 18px rgba(11, 18, 32, 0.04);
    margin: 0 auto
}

.grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, 1fr);
    align-items: start
}

/* Images in cards - responsive and centered */
.card img {
    display: block;
    width: 100%;
    max-width: 380px;
    height: auto;
    margin: 0 auto .5rem;
    object-fit: cover;
    border-radius: 6px;
    max-height: 240px;
}

/* Sections */
.cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f1f7ff;
    border-radius: 8px;
    margin-top: 1rem
}

.services .grid .card,
.products .grid .card {
    min-height: 140px
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem
}

input,
textarea {
    width: 100%;
    padding: .5rem;
    border: 1px solid #e6eef7;
    border-radius: 8px;
    margin-bottom: .5rem;
    font-family: inherit
}

/* Footer - claro */
.site-footer {
    background: #f8fafc;
    color: var(--text);
    padding: 1.25rem 0;
    margin-top: 2rem;
    border-top: 1px solid #eef3fb
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start
}

.footer-links a {
    display: block;
    margin: 0.2rem 0;
    color: #0b63d6;
    text-decoration: none
}

.site-footer h4 {
    margin: 0 0 .25rem
}

/* WhatsApp floating button */
.whatsapp-float {
    position: fixed;
    right: 16px;
    bottom: 16px;
    background: #25d366;
    color: #fff;
    padding: 12px;
    border-radius: 50%;
    text-decoration: none;
    font-size: 20px;
    z-index: 1000;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Copyright */
copyright,
.copyright {
    display: block;
    text-align: center;
    margin-top: 0.5rem;
    color: #6b7280;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width:1100px) {
    :root {
        --max-width: 960px;
    }
}

@media (max-width:900px) {
    .hero-inner {
        flex-direction: column
    }

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

    .contact-grid {
        grid-template-columns: 1fr
    }

    .menu-toggle {
        display: block
    }

    .main-nav {
        display: none
    }

    .card img {
        max-width: 100%;
        max-height: none
    }

    .cta {
        flex-direction: column;
        gap: .75rem
    }
}

/* Small screens */
@media (max-width:480px) {
    .header-inner {
        padding: .5rem 0
    }

    .logo img {
        height: 40px
    }

    .btn {
        padding: .5rem .75rem
    }

    .card {
        padding: .75rem
    }
}

/* Accessibility focus */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 3px solid rgba(11, 99, 214, 0.12);
    outline-offset: 2px;
}