/* Avalon Mercería B2B — tokens extraídos de avalonmerceria.es en producción */
:root {
	--color-primary: #0000CD;
	--color-primary-dark: #00009c;
	--color-text: #333333;
	--color-text-dark: #222222;
	--color-bg: #F3F4F8;
	--color-bg-alt: #ffffff;
	--color-border: #999999;
	--font-base: Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
	--radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
	margin: 0;
	font-family: var(--font-base);
	font-size: 15px;
	line-height: 1.6;
	color: var(--color-text-dark);
	background: var(--color-bg);
}

.wrap { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.wrap-narrow { max-width: 760px; }

h1, h2, h3 { font-family: var(--font-base); color: var(--color-text-dark); margin: 0 0 16px; }
h1 { font-size: 32px; font-weight: 500; letter-spacing: 1px; line-height: 1.25; }
h2 { font-size: 26px; font-weight: 400; }
h3 { font-size: 18px; font-weight: 500; }
p { margin: 0 0 16px; }
a { color: var(--color-primary); }

.skip-link {
	position: absolute; left: -9999px; top: 0; z-index: 999;
	background: #fff; color: var(--color-primary); padding: 12px 20px;
}
.skip-link:focus { left: 20px; top: 20px; }

/* Header */
.site-header {
	background: #fff;
	border-bottom: 1px solid #e2e2e2;
	position: sticky; top: 0; z-index: 100;
}
.site-header .wrap {
	position: relative;
	display: flex; align-items: center; justify-content: space-between;
	flex-wrap: wrap; gap: 12px; padding-top: 14px; padding-bottom: 14px;
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { display: block; height: 48px; width: auto; }
.logo-text { font-size: 24px; font-weight: 500; letter-spacing: .5px; color: var(--color-text-dark); line-height: 1.1; }
.header-nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.header-nav a {
	text-decoration: none; color: var(--color-text);
	font-size: 13px; text-transform: uppercase; letter-spacing: .3px;
}
.header-nav a:hover { color: var(--color-primary); }
.btn-nav {
	border: 1px solid var(--color-primary) !important;
	padding: 8px 16px; color: var(--color-primary) !important;
}

/* Icono hamburguesa: oculto en escritorio, solo aparece en el media query móvil */
.menu-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 40px; height: 40px;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	background: #fff;
	cursor: pointer;
	padding: 0;
}
.menu-toggle-bar {
	display: block; width: 20px; height: 2px;
	background: var(--color-text-dark);
	margin: 0 auto;
	transition: transform .2s ease, opacity .2s ease;
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) { transform: translateY(7px) 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(-7px) rotate(-45deg); }

.b2c-switch {
	width: 100%; margin: 0; font-size: 12px; color: #777; text-align: right;
}
.b2c-switch a { color: var(--color-primary); }

/* Hero */
.hero {
	background:
		linear-gradient(160deg, rgba(0,0,120,.92), rgba(0,0,205,.86)),
		url("../img/bodegon-hilos.jpg") center / cover no-repeat;
	color: #fff;
	padding: 72px 0;
	text-align: center;
}
.hero h1 { color: #fff; }
.eyebrow {
	display: inline-block;
	text-transform: uppercase; letter-spacing: 1.5px; font-size: 14px;
	font-weight: 700;
	color: #fff;
	background: rgba(255,255,255,.16);
	border: 1px solid rgba(255,255,255,.55);
	border-radius: var(--radius);
	padding: 7px 18px;
	margin-bottom: 22px;
}
.hero-lead {
	max-width: 640px; margin: 0 auto 28px;
	font-size: 17px; color: rgba(255,255,255,.92);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-whatsapp {
	display: inline-block;
	text-decoration: none;
	text-transform: uppercase;
	font-size: 13px;
	letter-spacing: .5px;
	padding: 14px 32px;
	border-radius: var(--radius);
	cursor: pointer;
	border: 1px solid transparent;
}
.btn-primary {
	background: #fff; color: var(--color-primary);
	border-color: #fff;
}
.btn-primary:hover { background: transparent; color: #fff; border-color: #fff; }
.section .btn-primary {
	background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.section .btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary {
	background: transparent; color: var(--color-primary); border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: #fff; }
.btn-whatsapp {
	background: #25D366; color: #fff; border-color: #25D366;
}
.btn-whatsapp:hover { background: #1ebe57; }

/* Sections */
.section { padding: 56px 0; }
.section-alt { background: #fff; }
.section h2 { text-align: center; margin-bottom: 32px; }
#condiciones h2, #catalogo h2 { text-align: left; }

.cards-3 {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}
.card {
	background: #fff;
	border: 1px solid #e2e2e2;
	border-radius: var(--radius);
	padding: 28px;
	transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover {
	transform: translateY(-4px);
	box-shadow: 0 14px 28px rgba(0,0,0,.08);
}
.section-alt .card { background: var(--color-bg); }

.card-icon {
	display: inline-flex; align-items: center; justify-content: center;
	width: 48px; height: 48px;
	border-radius: 50%;
	background: rgba(0,0,205,.08);
	color: var(--color-primary);
	margin-bottom: 16px;
}
.card-icon svg { width: 24px; height: 24px; }

.gallery-strip {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
	margin-top: 32px;
}
.gallery-item {
	position: relative;
	margin: 0;
	border-radius: var(--radius);
	overflow: hidden;
}
.gallery-item img {
	width: 100%; height: 180px; object-fit: cover;
	display: block;
	transition: transform .4s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item::after {
	content: "";
	position: absolute; inset: 0;
	background: linear-gradient(to top, rgba(0,0,0,.45), rgba(0,0,0,0) 55%);
}
.gallery-item figcaption {
	position: absolute; left: 14px; bottom: 14px; z-index: 1;
	background: #fff;
	color: var(--color-text-dark);
	font-size: 13px; font-weight: 500;
	padding: 8px 16px;
	border-radius: var(--radius);
	box-shadow: 0 6px 16px rgba(0,0,0,.18);
}

.catalogo-grid {
	display: grid;
	grid-template-columns: 1.1fr .9fr;
	gap: 40px;
	align-items: center;
}
.catalogo-grid img {
	width: 100%; height: 100%; max-height: 340px; object-fit: cover;
	border-radius: var(--radius);
}

.checklist { list-style: none; padding: 0; margin: 0 0 24px; }
.checklist li {
	padding: 14px 0 14px 32px;
	border-bottom: 1px solid #e2e2e2;
	position: relative;
}
.checklist li::before {
	content: "✓";
	position: absolute; left: 0; top: 14px;
	color: var(--color-primary); font-weight: bold;
}
.note {
	background: #fff; border-left: 3px solid var(--color-primary);
	border-radius: 0 var(--radius) var(--radius) 0;
	padding: 16px 20px; font-size: 14px; margin-top: 24px;
}

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
.steps::before {
	content: "";
	position: absolute; top: 20px; left: 16.6%; right: 16.6%; height: 2px;
	background: var(--color-border); opacity: .35;
}
.steps li { text-align: center; position: relative; }
.step-num {
	position: relative; z-index: 1;
	display: inline-flex; align-items: center; justify-content: center;
	width: 40px; height: 40px; border: 2px solid var(--color-primary);
	border-radius: 50%; /* los círculos numerados quedan mejor redondos del todo, no a 10px */
	background: var(--color-bg);
	color: var(--color-primary); font-weight: 500; margin-bottom: 12px;
}
.steps h3 { margin-bottom: 8px; }

/* Contact form */
.section-contact { background: #fff; }
.contact-form { margin-top: 24px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-row { margin-bottom: 18px; }
.form-row-half { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; }
.req { color: #c0392b; }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form textarea {
	width: 100%;
	padding: 11px 12px;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	font-family: var(--font-base);
	font-size: 14px;
	background: #fff;
}
.contact-form input:focus,
.contact-form textarea:focus {
	outline: 2px solid var(--color-primary);
	outline-offset: 1px;
}
.form-row-checkbox { display: flex; align-items: flex-start; gap: 10px; }
.form-row-checkbox input { margin-top: 4px; }
.form-row-checkbox label { margin: 0; font-size: 13px; font-weight: 400; }
.contact-form button[type="submit"] { border: none; margin-top: 8px; }
.form-status { margin-top: 14px; font-size: 14px; }
.form-status.ok { color: #1a7f37; }
.form-status.error { color: #c0392b; }

.contact-alt {
	margin-top: 40px; padding-top: 32px; border-top: 1px solid #e2e2e2;
	text-align: center;
}

/* Footer — foto de mercería de fondo con velo oscuro para que el texto
   siga siendo legible (contraste comprobado, ver notas de verificación) */
.site-footer {
	position: relative;
	color: #fff;
	padding: 64px 0 32px;
	margin-top: 40px;
	background: #1a1a1a url("../img/footer-merceria.jpg") center / cover no-repeat;
}
.site-footer::before {
	content: "";
	position: absolute; inset: 0;
	background: rgba(10, 10, 20, 0.86);
}
.site-footer .wrap { position: relative; text-align: center; }
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 28px; }
.footer-logo { height: 64px; width: auto; }
.footer-name { font-size: 30px; font-weight: 500; letter-spacing: .5px; color: #fff; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,.65); margin-top: -4px; }
.footer-links { list-style: none; display: flex; justify-content: center; gap: 24px; padding: 0; margin: 0 0 20px; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,.85); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.copyright { font-size: 12px; color: rgba(255,255,255,.55); margin: 0; }

/* Responsive */
@media (max-width: 780px) {
	/* Menú hamburguesa real: el botón aparece, y el <nav> pasa a ser un
	   panel desplegable oculto hasta que se activa con la clase .is-open
	   (ver js/main.js). Antes solo se veía el CTA sin icono que avisara
	   de que había más navegación — quedaba invisible para el usuario. */
	.menu-toggle { display: flex; }
	.header-nav {
		display: none;
		position: absolute;
		top: 100%; left: 0; right: 0;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		background: #fff;
		border-bottom: 1px solid #e2e2e2;
		box-shadow: 0 8px 16px rgba(0,0,0,.08);
		padding: 8px 20px 16px;
	}
	.header-nav.is-open { display: flex; }
	.header-nav a {
		padding: 12px 0;
		border-bottom: 1px solid #f0f0f0;
	}
	.header-nav a:last-child { border-bottom: none; }
	.btn-nav { text-align: center; margin-top: 8px; }
	.b2c-switch { text-align: center; }
	h1 { font-size: 26px; }
	.cards-3, .steps { grid-template-columns: 1fr; }
	.steps::before { display: none; }
	.form-row-half { grid-template-columns: 1fr; }
	.hero { padding: 48px 0; }
	.catalogo-grid { grid-template-columns: 1fr; }
	.catalogo-grid img { max-height: 220px; order: -1; }
	.gallery-strip { grid-template-columns: repeat(2, 1fr); }
	.logo-text { font-size: 19px; }
	.footer-name { font-size: 24px; }
}