/* =====================================================
   Nelson Transporte Brasil - Main Stylesheet
   Cores: Verde #009739, Amarelo #FFDF00, Azul #002776
   ===================================================== */

:root {
    --color-primary: #009739;
    --color-secondary: #FFDF00;
    --color-blue: #002776;
    --color-white: #FFFFFF;
    --color-dark: #222222;
    --color-gray: #666666;
    --color-light: #f5f7fa;
    --color-border: #e5e7eb;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
    --shadow-lg: 0 16px 40px rgba(0,0,0,0.14);
    --radius: 12px;
    --transition: all .3s ease;
    --container: 1200px;
    --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-heading: 'Poppins', 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    color: var(--color-dark);
    line-height: 1.6;
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-blue); }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--color-dark); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.35rem; margin-bottom: .75rem; }
p { margin-bottom: 1rem; color: #444; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: var(--color-light); }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 { position: relative; display: inline-block; padding-bottom: 15px; }
.section-title h2::after {
    content: ""; position: absolute; left: 50%; bottom: 0;
    width: 80px; height: 4px; background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: translateX(-50%); border-radius: 2px;
}
.section-title p { color: var(--color-gray); max-width: 700px; margin: 0 auto; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 50px; font-weight: 600;
    font-size: 15px; border: 2px solid transparent; cursor: pointer;
    transition: var(--transition); text-align: center;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-blue); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--color-secondary); color: var(--color-dark); }
.btn-secondary:hover { background: var(--color-white); color: var(--color-blue); border-color: var(--color-blue); transform: translateY(-2px); }
.btn-outline { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover { background: #fff; color: var(--color-primary); }

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 999;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.header-top {
    background: linear-gradient(90deg, var(--color-blue), var(--color-primary));
    color: #fff; font-size: 13px; padding: 8px 0;
}
.header-top .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.header-top a { color: #fff; }
.header-top .contact-info { display: flex; gap: 20px; flex-wrap: wrap; }
.header-main .container { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; }
.site-branding { display: flex; align-items: center; gap: 12px; }
.site-logo-mark {
    width: 48px; height: 48px; border-radius: 12px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 800; font-size: 20px;
}
.site-title { font-family: var(--font-heading); font-size: 20px; font-weight: 800; color: var(--color-blue); line-height: 1.1; }
.site-title a { color: inherit; }
.site-description { font-size: 12px; color: var(--color-gray); }

.main-navigation ul { list-style: none; display: flex; gap: 5px; align-items: center; }
.main-navigation a { color: var(--color-dark); font-weight: 600; padding: 10px 16px; border-radius: 8px; font-size: 15px; }
.main-navigation a:hover, .main-navigation .current-menu-item > a { background: var(--color-light); color: var(--color-primary); }
.header-cta { background: var(--color-primary); color: #fff !important; padding: 10px 20px !important; border-radius: 50px !important; }
.header-cta:hover { background: var(--color-blue); color: #fff !important; }

.menu-toggle {
    display: none; background: none; border: none; cursor: pointer;
    padding: 8px; color: var(--color-blue); font-size: 26px;
}
@media (max-width: 900px) {
    .menu-toggle { display: block; }
    .main-navigation { position: fixed; top: 0; right: -100%; width: 80%; max-width: 320px; height: 100vh; background: #fff; box-shadow: var(--shadow-lg); transition: right .3s; padding: 80px 20px 20px; overflow-y: auto; }
    .main-navigation.active { right: 0; }
    .main-navigation ul { flex-direction: column; align-items: stretch; }
    .main-navigation a { display: block; padding: 14px 16px; border-bottom: 1px solid var(--color-border); border-radius: 0; }
}

/* ===== Hero ===== */
.hero {
    position: relative; color: #fff; padding: 120px 0 100px;
    background:
      linear-gradient(135deg, rgba(0,39,118,.85), rgba(0,151,57,.85)),
      url('https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?w=1600&auto=format&fit=crop') center/cover no-repeat;
    text-align: center; overflow: hidden;
}
.hero::before {
    content:""; position:absolute; inset:0;
    background: radial-gradient(circle at 20% 30%, rgba(255,223,0,.15), transparent 60%);
    pointer-events:none;
}
.hero-content { position: relative; max-width: 900px; margin: 0 auto; }
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero-highlight { color: var(--color-secondary); }
.hero p { color: rgba(255,255,255,.92); font-size: 1.15rem; max-width: 780px; margin: 0 auto 32px; }
.hero-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 30px; justify-content: center; flex-wrap: wrap; margin-top: 50px; }
.hero-badge { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; }
.hero-badge .icon { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.15); display: flex; align-items: center; justify-content: center; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.about-image {
    border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--color-blue), var(--color-primary));
    position: relative;
}
.about-image::after {
    content:"NTB"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
    color: rgba(255,255,255,.35); font-size: 6rem; font-weight: 900; font-family: var(--font-heading);
}
.about-text h2 { margin-bottom: 20px; }
.about-text .lead { font-size: 1.1rem; color: var(--color-blue); font-weight: 600; }
@media(max-width: 900px){ .about-grid{ grid-template-columns:1fr; } }

/* ===== Mission ===== */
.mission {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-primary) 100%);
    color: #fff; text-align: center; padding: 80px 0;
}
.mission h2 { color: #fff; }
.mission h2::after { background: var(--color-secondary); }
.mission-content { max-width: 900px; margin: 0 auto; }
.mission-content p { color: rgba(255,255,255,.95); font-size: 1.1rem; }

/* ===== Diferenciais / Serviços cards ===== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 25px; }
.card {
    background: #fff; padding: 35px 28px; border-radius: var(--radius);
    box-shadow: var(--shadow-sm); border-top: 4px solid var(--color-primary);
    transition: var(--transition); position: relative;
}
.card:nth-child(2n) { border-top-color: var(--color-secondary); }
.card:nth-child(3n) { border-top-color: var(--color-blue); }
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.card .icon-wrap {
    width: 60px; height: 60px; border-radius: 14px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
    color: #fff; display:flex; align-items:center; justify-content:center;
    font-size: 26px; margin-bottom: 20px;
}
.card:nth-child(2n) .icon-wrap { background: linear-gradient(135deg, var(--color-secondary), #ffb400); color: var(--color-dark); }
.card:nth-child(3n) .icon-wrap { background: linear-gradient(135deg, var(--color-blue), var(--color-primary)); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--color-gray); font-size: 15px; margin: 0; }

/* ===== Why Us ===== */
.why-us-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.why-us-list { list-style: none; display: grid; gap: 18px; }
.why-us-list li {
    display: flex; gap: 15px; align-items: flex-start;
    padding: 18px; background:#fff; border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.why-us-list .check {
    flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%;
    background: var(--color-primary); color:#fff; display:flex; align-items:center; justify-content:center; font-weight: 700;
}
.why-us-list h4 { font-size: 1rem; margin-bottom: 4px; color: var(--color-blue); }
.why-us-list p { margin: 0; font-size: 14px; color: var(--color-gray); }
.why-us-visual {
    background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
    border-radius: var(--radius); padding: 50px; color:#fff; text-align:center;
    aspect-ratio: 1/1; display:flex; flex-direction:column; justify-content:center; align-items:center;
}
.why-us-visual .big-number { font-size: 5rem; font-weight: 900; color: var(--color-secondary); line-height: 1; }
.why-us-visual h3 { color:#fff; margin: 15px 0 5px; }
@media(max-width: 900px){ .why-us-grid{ grid-template-columns:1fr; } }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; }
.contact-info-box { background:#fff; border-radius: var(--radius); padding: 35px; box-shadow: var(--shadow-sm); }
.contact-info-box h3 { color: var(--color-blue); margin-bottom: 20px; }
.contact-item { display:flex; gap: 15px; margin-bottom: 22px; align-items: flex-start; }
.contact-item .ic {
    flex-shrink: 0; width: 44px; height: 44px; border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
    color:#fff; display:flex; align-items:center; justify-content:center; font-size: 18px;
}
.contact-item strong { display:block; color: var(--color-blue); margin-bottom: 3px; font-size: 14px; text-transform: uppercase; letter-spacing:.5px; }
.contact-item span, .contact-item a { color: var(--color-dark); font-size: 15px; }

.contact-form { background:#fff; border-radius: var(--radius); padding: 35px; box-shadow: var(--shadow-sm); }
.contact-form h3 { color: var(--color-blue); margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px; }
.form-group { margin-bottom: 15px; }
.form-group label { display:block; margin-bottom: 6px; font-weight: 600; font-size: 14px; color: var(--color-dark); }
.form-group input, .form-group textarea {
    width: 100%; padding: 12px 14px; border: 2px solid var(--color-border);
    border-radius: 8px; font-family: inherit; font-size: 15px; transition: var(--transition);
    background: #fafafa;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); background:#fff; }
.form-group textarea { min-height: 130px; resize: vertical; }
.form-message { padding: 12px; border-radius: 8px; margin-top: 12px; display: none; }
.form-message.success { display:block; background:#d1fae5; color:#065f46; }
.form-message.error { display:block; background:#fee2e2; color:#991b1b; }
@media(max-width: 900px){ .contact-grid, .form-row { grid-template-columns:1fr; } }

/* ===== Map ===== */
.map-wrapper { width: 100%; height: 450px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.map-wrapper iframe { width: 100%; height: 100%; border: 0; }

/* ===== Footer ===== */
.site-footer { background: #0a1128; color: #cbd5e1; padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 40px; }
.site-footer h4 { color:#fff; margin-bottom: 18px; font-size: 1.05rem; position: relative; padding-bottom: 10px; }
.site-footer h4::after { content:""; position:absolute; left:0; bottom:0; width:40px; height:3px; background: var(--color-secondary); border-radius:2px; }
.site-footer p, .site-footer li { color: #94a3b8; font-size: 14px; line-height: 1.8; }
.site-footer ul { list-style: none; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: var(--color-secondary); }
.footer-brand-name { color:#fff; font-weight: 700; font-size: 1.1rem; margin-bottom: 10px; font-family: var(--font-heading); }
.footer-legal li { display: flex; gap: 8px; }
.footer-legal li strong { color:#fff; font-weight: 600; min-width: 130px; }
.social-links { display: flex; gap: 10px; margin-top: 15px; }
.social-links a {
    width: 40px; height: 40px; border-radius: 50%;
    background: rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center;
    color:#fff; font-size: 16px;
}
.social-links a:hover { background: var(--color-primary); color:#fff; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; text-align: center;
    color: #64748b; font-size: 13px;
}
@media(max-width: 900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width: 600px){ .footer-grid{ grid-template-columns:1fr; } }

/* ===== Floating buttons ===== */
.whatsapp-float {
    position: fixed; bottom: 25px; right: 25px; z-index: 998;
    width: 60px; height: 60px; border-radius: 50%;
    background: #25D366; color:#fff; display:flex; align-items:center; justify-content:center;
    font-size: 30px; box-shadow: 0 8px 24px rgba(37,211,102,.5);
    animation: pulse 2s infinite; transition: transform .3s;
}
.whatsapp-float:hover { transform: scale(1.1); color:#fff; }
@keyframes pulse {
    0%,100% { box-shadow: 0 8px 24px rgba(37,211,102,.5); }
    50% { box-shadow: 0 8px 30px rgba(37,211,102,.85); }
}
.back-to-top {
    position: fixed; bottom: 95px; right: 25px; z-index: 997;
    width: 45px; height: 45px; border-radius: 50%;
    background: var(--color-blue); color:#fff; display: none;
    align-items:center; justify-content:center; font-size: 20px; cursor: pointer;
    border: none; box-shadow: var(--shadow-md);
}
.back-to-top.visible { display: flex; }
.back-to-top:hover { background: var(--color-primary); }

/* ===== Page/Post generic ===== */
.page-header { background: linear-gradient(135deg, var(--color-blue), var(--color-primary)); color:#fff; padding: 80px 0 60px; text-align: center; }
.page-header h1 { color:#fff; }
.breadcrumbs { color: rgba(255,255,255,.85); font-size: 14px; margin-top: 10px; }
.breadcrumbs a { color: var(--color-secondary); }

.content-area { padding: 60px 0; }
.content-grid { display: grid; grid-template-columns: 2.3fr 1fr; gap: 40px; }
.entry { background:#fff; padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.entry h2, .entry h3 { color: var(--color-blue); margin-top: 1.5em; }
.entry img { border-radius: 8px; margin: 20px 0; }
.entry a { text-decoration: underline; }

.widget-area .widget { background:#fff; padding: 25px; border-radius: var(--radius); box-shadow: var(--shadow-sm); margin-bottom: 25px; }
.widget-title { color: var(--color-blue); font-size: 1.1rem; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid var(--color-primary); }
.widget ul { list-style: none; }
.widget li { padding: 8px 0; border-bottom: 1px solid var(--color-border); }
.widget a { color: var(--color-dark); }
@media(max-width: 900px){ .content-grid{ grid-template-columns:1fr; } }

.error-404 { text-align: center; padding: 100px 20px; }
.error-404 h1 { font-size: 8rem; color: var(--color-primary); line-height: 1; }
.error-404 h2 { margin: 20px 0; }

.search-form { display: flex; gap: 8px; }
.search-form input[type=search] { flex: 1; padding: 12px; border: 2px solid var(--color-border); border-radius: 8px; }
.search-form button { padding: 12px 20px; border: 0; background: var(--color-primary); color:#fff; border-radius: 8px; cursor: pointer; font-weight: 600; }

.pagination { display: flex; gap: 5px; justify-content: center; margin-top: 40px; }
.pagination .page-numbers { padding: 10px 15px; background:#fff; border-radius: 8px; color: var(--color-dark); box-shadow: var(--shadow-sm); }
.pagination .current { background: var(--color-primary); color:#fff; }

/* ===== Accessibility helpers ===== */
.screen-reader-text { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.skip-link { position: absolute; top: -40px; left: 0; background: var(--color-blue); color:#fff; padding: 8px 16px; z-index: 10000; }
.skip-link:focus { top: 0; }

/* Print & reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}