/* ===== Variables - HBK Brand ===== */
:root {
    /* Colores de marca */
    --color-primary: #00A84D;
    --color-primary-hover: #00c25a;
    --color-white: #FFFFFF;
    --color-dark: #1A1A1A;
    --color-dark-soft: #242424;
    --color-metal: #2c2c2c;
    --color-gray: #8a8a8a;
    --color-gray-light: #f4f4f4;
    --color-border: #2a2a2a;

    /* Tipografía */
    --font-base: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
    --fs-base: 1rem;
    --fs-h1: 2.25rem;
    --fs-h2: 1.75rem;
    --fs-h3: 1.125rem;

    /* Espaciado */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 5rem;

    --radius: 2px;
    --max-width: 1200px;
    --transition-base: all 0.25s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, p, ul, figure { margin: 0; padding: 0; }
ul { list-style: none; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition-base); }
html { scroll-behavior: smooth; }

/* ===== Base ===== */
body {
    font-family: var(--font-base);
    font-size: var(--fs-base);
    line-height: 1.65;
    color: var(--color-white);
    background-color: var(--color-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}

h1, h2, h3 {
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    text-transform: uppercase;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

.eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-primary);
    padding-left: 2.5rem;
    position: relative;
    margin-bottom: var(--space-sm);
}
.eyebrow::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 2rem;
    height: 2px;
    background: var(--color-primary);
}
.eyebrow-dark { color: var(--color-primary); }

/* ===== Header ===== */
.site-header {
    background: #1A1A1A;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.logo {
    display: flex;
    align-items: center;
}
.brand-logo {
    display: block;
    max-height: 50px;
    width: auto;
    height: auto;
    margin-right: 15px;
}
.brand-name {
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    white-space: nowrap;
}
@media (min-width: 769px) {
    .brand-name { font-size: 1.5rem; }
}
.header-inner {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-sm) 1.25rem;
}
.logo { line-height: 1; }
.logo-mark {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 0.08em;
    color: var(--color-white);
    border-left: 3px solid var(--color-primary);
    padding-left: 0.5rem;
}
.logo-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.22em;
    margin-top: 0.25rem;
    padding-left: 0.65rem;
}
.main-nav { position: relative; }

/* Botón hamburguesa */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 32px;
    height: 24px;
    padding: 0;
    margin-right: 20px;
    margin-left: 12px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 20;
}
.menu-toggle-bar {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-white);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
    opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

/* Mobile-first: menú oculto */
.nav-links {
    position: absolute;
    top: calc(100% + var(--space-sm));
    right: 0;
    left: auto;
    min-width: 240px;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--color-dark);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: var(--radius);
    padding: var(--space-sm) 0;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.nav-links.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.nav-links li { width: 100%; white-space: nowrap; }
.nav-links a {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    border-left: 3px solid transparent;
    white-space: nowrap;
}
.nav-links a:hover {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    background: rgba(0, 168, 77, 0.06);
}

/* Desktop: menú horizontal, hamburguesa oculta */
@media (min-width: 769px) {
    .menu-toggle { display: none; }
    .nav-links {
        position: static;
        flex-direction: row;
        gap: var(--space-md);
        min-width: 0;
        padding: 0;
        background: transparent;
        border: none;
        box-shadow: none;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }
    .nav-links a {
        padding: var(--space-xs) 0;
        border-left: none;
        border-bottom: 2px solid transparent;
        background: transparent;
    }
    .nav-links a:hover {
        background: transparent;
        border-left: none;
        border-bottom-color: var(--color-primary);
    }
}

/* ===== Hero ===== */
.hero {
    background-image: url('assets/img/hero-main.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 88vh;
    padding: var(--space-xl) 0;
    display: flex;
    align-items: center;
    border-bottom: 4px solid var(--color-primary);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(0,168,77,0.18) 0%, rgba(26,26,26,0) 55%),
        linear-gradient(180deg, rgba(26,26,26,0.78) 0%, rgba(26,26,26,0.88) 100%);
    pointer-events: none;
}
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.hero-content {
    max-width: 820px;
    text-align: left;
    position: relative;
    z-index: 2;
}

/* Efecto ripple */
.hero-ripple {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,168,77,0.25) 0%, rgba(0,168,77,0) 70%);
    transform: translate(-50%, -50%) scale(0);
    pointer-events: none;
    z-index: 1;
    opacity: 1;
    animation: ripple-expand 0.8s ease-out forwards;
    will-change: transform, opacity;
}
@keyframes ripple-expand {
    to {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
    }
}
.hero h1 {
    font-size: var(--fs-h1);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}
.hero h1 .accent { color: var(--color-primary); }
.hero p {
    color: var(--color-gray);
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
    max-width: 620px;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ===== Botones flat ===== */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-base);
}
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-2px);
}
.btn-ghost {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}
.btn-ghost:hover {
    background: var(--color-white);
    color: var(--color-dark);
}

/* ===== Section heads ===== */
.section-head { margin-bottom: var(--space-lg); }
.section-head-center { text-align: center; }
.section-head-center .eyebrow { padding-left: 0; }
.section-head-center .eyebrow::before { display: none; }
.section-sub {
    color: var(--color-gray);
    font-size: 1.0625rem;
    max-width: 640px;
    margin: var(--space-sm) auto 0;
}
.accent-dark { color: var(--color-primary); }

/* ===== Sección Nuestra Calidad ===== */
.features {
    background: var(--color-white);
    color: var(--color-dark);
    padding: var(--space-xl) 0;
}
.features h2 { color: var(--color-dark); font-size: var(--fs-h2); }
.features-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: 1fr;
}
.feature-card {
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    background: var(--color-white);
    border: 1px solid #eaeaea;
    border-radius: var(--radius);
    transition: var(--transition-base);
}
.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}
.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 168, 77, 0.08);
    color: var(--color-primary);
    border-radius: var(--radius);
}
.feature-icon svg { width: 36px; height: 36px; }
.feature-card h3 {
    font-size: var(--fs-h3);
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
}
.feature-card p { color: #555; font-size: 0.9375rem; }

/* ===== Sección Productos ===== */
.products {
    background: var(--color-gray-light);
    color: var(--color-dark);
    padding: var(--space-xl) 0;
}
.products h2 { color: var(--color-dark); font-size: var(--fs-h2); }
.products-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: 1fr;
}
.product-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.12);
}
.product-image {
    aspect-ratio: 4 / 3;
    background: #ececec;
    position: relative;
    overflow: hidden;
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}
.product-card:hover .product-image img {
    transform: scale(1.05);
}
.product-body {
    padding: var(--space-md);
    border-top: 3px solid var(--color-primary);
}
.product-tag {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}
.product-card h3 {
    font-size: var(--fs-h3);
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
}
.product-card p { color: #666; font-size: 0.9375rem; }

/* ===== Sección Esencia ===== */
.essence {
    background: var(--color-white);
    color: var(--color-dark);
    padding: var(--space-xl) 0;
}
.essence-inner { max-width: 960px; margin: 0 auto; }
.essence h2 {
    font-size: var(--fs-h2);
    color: var(--color-dark);
    margin-bottom: var(--space-md);
}
.essence .lead {
    font-size: 1.125rem;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    font-weight: 500;
}
.essence p {
    color: #555;
}

.essence-pillars {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: 1fr;
    margin-top: var(--space-lg);
}
.pillar {
    padding: var(--space-md);
    background: var(--color-gray-light);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius);
    transition: var(--transition-base);
}
.pillar:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}
.pillar-num {
    display: block;
    font-size: 0.875rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 0.2em;
    margin-bottom: var(--space-xs);
}
.pillar h3 {
    font-size: var(--fs-h3);
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
}
.pillar p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* ===== Sección Calidad ===== */
.quality {
    background: var(--color-dark);
    padding: var(--space-xl) 0;
    border-top: 4px solid var(--color-primary);
    text-align: center;
}
.quality-inner { max-width: 760px; margin: 0 auto; }
.quality h2 {
    font-size: var(--fs-h2);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}
.quality p {
    color: var(--color-gray);
    font-size: 1.0625rem;
}
.quality .eyebrow {
    margin-left: auto;
    margin-right: auto;
}

/* ===== Sección Sobre HBK ===== */
.about-brand {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-xl) 0;
    border-top: 4px solid #008f3f;
    border-bottom: 4px solid #008f3f;
}
.about-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: 1fr;
    align-items: center;
}
.about-media {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
    border: 3px solid var(--color-white);
}
.about-media img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    aspect-ratio: 4 / 3;
}
.about-inner { max-width: 640px; }
.about-brand h2 {
    font-size: var(--fs-h2);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}
.eyebrow-light { color: var(--color-white); }
.eyebrow-light::before { background: var(--color-white); }
.about-lead {
    font-size: 1.125rem;
    color: var(--color-white);
    margin-bottom: var(--space-md);
    opacity: 0.95;
}
.about-sub {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    padding: var(--space-xs) var(--space-md);
    border: 2px solid var(--color-white);
    border-radius: var(--radius);
    margin-top: var(--space-sm);
}

/* ===== Sección Contacto ===== */
.contact {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--space-xl) 0;
}
.contact h2 { color: var(--color-white); font-size: var(--fs-h2); }
.contact-media {
    margin-bottom: var(--space-lg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
}
.contact-media img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    max-height: 360px;
}
.contact-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: 1fr;
    align-items: start;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}
.form-row {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: 1fr;
}
.form-field { display: flex; flex-direction: column; }
.form-field label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray);
    margin-bottom: var(--space-xs);
}
.form-field input,
.form-field textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--color-dark-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-white);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition-base);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input::placeholder,
.form-field textarea::placeholder { color: #555; }
.form-field input:hover,
.form-field textarea:hover { border-color: #3a3a3a; }
.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 168, 77, 0.18);
    background: var(--color-dark);
}
.contact-form .btn { align-self: flex-start; }

.contact-info {
    background: var(--color-dark-soft);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius);
    padding: var(--space-md);
}
.contact-info h3 {
    font-size: var(--fs-h3);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}
.contact-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.contact-list li {
    display: flex;
    flex-direction: column;
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}
.contact-list li:last-child { border-bottom: none; padding-bottom: 0; }
.contact-label {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}
.contact-list a { color: var(--color-white); }
.contact-list a:hover { color: var(--color-primary); }

/* ===== Footer ===== */
.site-footer {
    background: #111111;
    color: var(--color-white);
    padding: var(--space-lg) 0 var(--space-md);
    border-top: 4px solid var(--color-primary);
}
.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    text-align: center;
}
.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}
.footer-logo {
    display: block;
    max-height: 40px;
    width: auto;
    height: auto;
    margin: 0 auto 12px;
}
.footer-brand-name {
    font-size: 1rem;
    letter-spacing: 1.5px;
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    align-items: center;
    font-style: normal;
    font-size: 0.875rem;
    color: var(--color-gray);
}
.footer-contact a {
    color: var(--color-white);
    border-bottom: 1px solid transparent;
}
.footer-contact a:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.copyright {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid #1a1a1a;
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    text-align: center;
}

/* ===== Tablet ===== */
@media (min-width: 640px) {
    :root { --fs-h1: 3rem; --fs-h2: 2.25rem; }
    .essence-pillars { grid-template-columns: repeat(3, 1fr); }
    .features-grid { grid-template-columns: repeat(3, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1.5fr 1fr; gap: var(--space-lg); }
    .about-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
    .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
    .footer-brand { align-items: flex-start; }
}

/* ===== Desktop ===== */
@media (min-width: 960px) {
    :root { --fs-h1: 4rem; --fs-h2: 2.5rem; }
    .hero { min-height: 92vh; }
    .products-grid { grid-template-columns: repeat(4, 1fr); }
}