/* =========================================================
   XTREMIS LOGÍSTICA - Hoja de estilos principal
   Paleta: verde corporativo + negro + blanco
   ========================================================= */

:root {
    --color-primary: #1B5E20;
    --color-primary-dark: #0d3d12;
    --color-accent: #43A047;
    --color-accent-light: #66BB6A;
    --color-dark: #1a1a1a;
    --color-text: #2c2c2c;
    --color-muted: #6b6b6b;
    --color-bg: #ffffff;
    --color-bg-soft: #f7f8f7;
    --color-border: #e6e6e6;
    --color-whatsapp: #25D366;

    --font-heading: 'Montserrat', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;

    --container: 1200px;
    --radius: 8px;
    --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 20px 50px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--color-dark); }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.5px; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.6rem; }
p { margin-bottom: 1rem; color: var(--color-muted); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Botones ---------- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.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: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    transition: padding 0.3s ease;
}
.nav-logo {
    margin-left: 60px;
    flex-shrink: 0;
}
.nav-logo img {
    height: 75px;
    width: auto;
    min-width: 120px;
    max-width: 280px;
    object-fit: contain;
    transition: height 0.25s ease;
    will-change: height;
}

/* Spostiamo il menù 60px verso il centro */
.nav-menu {
    margin-right: 60px;
}

/* Header rimpicciolito durante lo scroll */
.site-header.scrolled {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.site-header.scrolled .nav {
    padding: 6px 0;
}
.site-header.scrolled .nav-logo img {
    height: 75px;
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: 38px;
    align-items: center;
}
.nav-menu a {
    color: var(--color-dark);
    font-weight: 500;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
}
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}
.nav-menu a:hover::after,
.nav-menu a.active::after { width: 100%; }
.nav-menu a.active { color: var(--color-primary); }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.8rem;
    color: var(--color-dark);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    color: #fff;
    text-align: center;
    background:
        linear-gradient(135deg, rgba(13, 61, 18, 0.82), rgba(27, 94, 32, 0.65)),
        url('../camion_silo_hero.jpg') center/cover;
}
.hero-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 80px 0;
}
.hero h1 {
    color: #fff;
    margin-bottom: 1.5rem;
}
.hero .lead {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.92);
    margin-bottom: 2.2rem;
    line-height: 1.6;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

.hero-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 3px;
    background: rgba(255,255,255,0.15);
    padding: 8px 18px;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

/* ---------- Page Hero (interior) ---------- */
.page-hero {
    background:
        linear-gradient(135deg, rgba(13, 61, 18, 0.9), rgba(27, 94, 32, 0.8)),
        url('https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&w=1920&q=80') center/cover;
    color: #fff;
    padding: 110px 0 80px;
    text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 0.8rem; }
.page-hero p { color: rgba(255,255,255,0.9); font-size: 1.15rem; max-width: 680px; margin: 0 auto; }

/* ---------- Secciones ---------- */
section { padding: 90px 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-eyebrow {
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    display: block;
}
.bg-soft { background: var(--color-bg-soft); }

/* ---------- Cards de servicios ---------- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 30px;
}
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}
.card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.card-img { height: 220px; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.card:hover .card-img img { transform: scale(1.06); }
.card-body { padding: 28px; }
.card-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: #fff;
    font-size: 1.6rem;
}
.card h3 { color: var(--color-dark); }
.card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Features (íconos) ---------- */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 50px;
}
.feature { text-align: center; padding: 20px; }
.feature-icon {
    width: 72px;
    height: 72px;
    background: var(--color-bg-soft);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    color: var(--color-primary);
    font-size: 1.8rem;
}
.feature h3 { margin-bottom: 8px; }
.feature p { font-size: 0.95rem; }

/* ---------- About split ---------- */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.split-img img { border-radius: var(--radius); box-shadow: var(--shadow-md); }
.split h2 { margin-bottom: 1.2rem; }
.split p { font-size: 1.02rem; }

/* ---------- Stats ---------- */
.stats {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #fff;
    padding: 70px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
    text-align: center;
}
.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}
.stat-label {
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 0.85rem;
    margin-top: 10px;
    color: rgba(255,255,255,0.85);
}

/* ---------- Contacto ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 50px;
}
.contact-info { padding: 10px 0; }
.contact-item {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
    align-items: flex-start;
}
.contact-item .icon {
    width: 46px;
    height: 46px;
    background: var(--color-primary);
    border-radius: 50%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}
.contact-item h4 { font-family: var(--font-heading); margin-bottom: 4px; color: var(--color-dark); }
.contact-item p { margin: 0; font-size: 0.95rem; }

.contact-form {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-dark);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
    background: #fff;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(27, 94, 32, 0.1);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* ---------- Mapa ---------- */
.map-wrap {
    margin-top: 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.map-wrap iframe { display: block; width: 100%; height: 380px; border: 0; }

/* ---------- CTA Banner ---------- */
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #fff;
    padding: 70px 0;
    text-align: center;
}
.cta-banner h2 { color: #fff; margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,0.9); font-size: 1.1rem; max-width: 600px; margin: 0 auto 2rem; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-dark);
    color: #cfcfcf;
    padding: 70px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}
.footer-col h4 {
    color: #fff;
    margin-bottom: 22px;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-col p { color: #a0a0a0; font-size: 0.92rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: #cfcfcf; font-size: 0.92rem; }
.footer-col ul li a:hover { color: var(--color-accent-light); padding-left: 5px; }
.footer-logo img { 
    height: auto; 
    width: 210px; 
    max-width: 100%;
    background: transparent; 
    padding: 0; 
    border-radius: 0; 
    margin-bottom: 18px;
    object-fit: contain;
    mix-blend-mode: screen;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}
.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    transition: var(--transition);
}
.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    text-align: center;
    color: #888;
    font-size: 0.88rem;
}

/* ---------- WhatsApp widget ---------- */
.wa-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    font-family: var(--font-body);
}
.wa-button {
    width: 62px;
    height: 62px;
    background: var(--color-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(37,211,102,0.5);
    border: none;
    transition: var(--transition);
    position: relative;
}
.wa-button:hover { transform: scale(1.08); }
.wa-button svg { width: 32px; height: 32px; fill: #fff; }
.wa-button::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--color-whatsapp);
    z-index: -1;
    animation: wa-pulse 2s infinite;
}
@keyframes wa-pulse {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.6); opacity: 0; }
}

.wa-chat {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 340px;
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: none;
    animation: wa-pop 0.3s ease;
}
.wa-chat.open { display: block; }
@keyframes wa-pop {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.wa-header {
    background: var(--color-primary);
    color: #fff;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.wa-avatar {
    width: 44px;
    height: 44px;
    background: #fff;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    padding: 4px;
}
.wa-avatar img { width: 100%; height: 100%; object-fit: contain; }
.wa-header-info strong { display: block; font-size: 0.95rem; }
.wa-header-info span { font-size: 0.78rem; opacity: 0.85; }
.wa-close {
    margin-left: auto;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.3rem;
    cursor: pointer;
    opacity: 0.8;
}
.wa-close:hover { opacity: 1; }
.wa-body {
    padding: 24px 18px;
    background: #e5ddd5 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' opacity='0.05'%3E%3Cpath d='M0 0h100v100H0z' fill='%23000'/%3E%3C/svg%3E");
    min-height: 140px;
}
.wa-msg {
    background: #fff;
    padding: 12px 14px;
    border-radius: 0 10px 10px 10px;
    max-width: 85%;
    font-size: 0.9rem;
    color: #333;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    margin-bottom: 6px;
}
.wa-msg-time {
    font-size: 0.7rem;
    color: #888;
    margin-left: 8px;
}
.wa-footer {
    padding: 14px;
    background: #f0f0f0;
}
.wa-send-btn {
    display: block;
    background: var(--color-whatsapp);
    color: #fff;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}
.wa-send-btn:hover { background: #1ebe57; color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .split { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
    /* Nav mobile: logo centrato, hamburger a destra */
    .nav {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
    }
    .nav-logo {
        grid-column: 2;
        margin-left: 0;
        justify-self: center;
    }
    .nav-toggle {
        grid-column: 3;
        justify-self: end;
        display: block;
        margin-right: 5px;
    }
    .nav-logo img { height: 75px; }
    .site-header.scrolled .nav-logo img { height: 75px; }

    /* Su mobile il br forzato nel titolo non serve */
    .hero h1 br { display: none; }

    .nav-menu {
        grid-column: 1 / -1;
        grid-row: 2;
        margin-right: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        gap: 0;
        padding: 0;
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    .nav-menu.open { max-height: 400px; }
    .nav-menu li { width: 100%; border-bottom: 1px solid var(--color-border); }
    .nav-menu a { display: block; padding: 18px 24px; }

    section { padding: 60px 0; }
    .hero { min-height: 70vh; }
    .grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .wa-chat { width: calc(100vw - 48px); right: 0; }
}