/**
 * CV PROFESIONAL - Sistema de Diseño SaaS
 * ========================================
 * Enfoque: Minimalista, profesional, escaneable
 * Metodología: BEM + CSS Custom Properties
 * Layout: Mobile-first responsive
 */

/* ============================================
   1. DESIGN TOKENS (Variables)
   ============================================ */

:root {
	/* Colores - Sistema de 2-3 colores */
	--color-primary: #0ea5e9;
	--color-primary-dark: #0284c7;
	--color-primary-light: #e0f2fe;

	/* Escala de grises */
	--color-gray-50: #f8fafc;
	--color-gray-100: #f1f5f9;
	--color-gray-200: #e2e8f0;
	--color-gray-300: #cbd5e1;
	--color-gray-400: #94a3b8;
	--color-gray-500: #64748b;
	--color-gray-600: #475569;
	--color-gray-700: #334155;
	--color-gray-800: #1e293b;
	--color-gray-900: #0f172a;

	/* Colores semánticos - Light Mode */
	--bg-primary: #ffffff;
	--bg-secondary: var(--color-gray-50);
	--bg-tertiary: var(--color-gray-100);
	--text-primary: var(--color-gray-900);
	--text-secondary: var(--color-gray-600);
	--text-tertiary: var(--color-gray-500);
	--border-color: var(--color-gray-200);
	--border-light: var(--color-gray-100);

	/* Tipografía */
	--font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 
	             'Roboto', 'Helvetica Neue', sans-serif;
	--font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

	/* Escala tipográfica */
	--text-xs: 0.75rem;
	--text-sm: 0.875rem;
	--text-base: 1rem;
	--text-lg: 1.125rem;
	--text-xl: 1.25rem;
	--text-2xl: 1.5rem;
	--text-3xl: 1.875rem;
	--text-4xl: 2.25rem;

	/* Espaciado */
	--space-1: 0.25rem;
	--space-2: 0.5rem;
	--space-3: 0.75rem;
	--space-4: 1rem;
	--space-5: 1.25rem;
	--space-6: 1.5rem;
	--space-8: 2rem;
	--space-10: 2.5rem;
	--space-12: 3rem;
	--space-16: 4rem;

	/* Bordes */
	--radius-sm: 0.375rem;
	--radius-md: 0.5rem;
	--radius-lg: 0.75rem;
	--radius-xl: 1rem;
	--radius-full: 9999px;

	/* Sombras */
	--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
	--shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
	--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

	/* Transiciones */
	--transition-fast: 150ms ease;
	--transition-base: 200ms ease;
	--transition-slow: 300ms ease;

	/* Layout */
	--container-max: 1100px;
	--nav-height: 64px;
}

/* ============================================
   2. DARK MODE
   ============================================ */

[data-theme="dark"] {
	--bg-primary: var(--color-gray-900);
	--bg-secondary: var(--color-gray-800);
	--bg-tertiary: var(--color-gray-700);
	--text-primary: var(--color-gray-50);
	--text-secondary: var(--color-gray-300);
	--text-tertiary: var(--color-gray-400);
	--border-color: var(--color-gray-700);
	--border-light: var(--color-gray-800);
	--color-primary-light: rgba(14, 165, 233, 0.15);
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) {
		--bg-primary: var(--color-gray-900);
		--bg-secondary: var(--color-gray-800);
		--bg-tertiary: var(--color-gray-700);
		--text-primary: var(--color-gray-50);
		--text-secondary: var(--color-gray-300);
		--text-tertiary: var(--color-gray-400);
		--border-color: var(--color-gray-700);
		--border-light: var(--color-gray-800);
		--color-primary-light: rgba(14, 165, 233, 0.15);
	}
}

/* ============================================
   3. RESET & BASE
   ============================================ */

*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
	scroll-padding-top: var(--nav-height);
}

body {
	font-family: var(--font-sans);
	font-size: var(--text-base);
	line-height: 1.6;
	color: var(--text-primary);
	background-color: var(--bg-secondary);
	-webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
	line-height: 1.3;
	font-weight: 600;
	color: var(--text-primary);
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition-fast);
}

a:hover {
	color: var(--color-primary-dark);
}

ul, ol {
	list-style: none;
}

strong {
	font-weight: 600;
	color: var(--text-primary);
}

/* ============================================
   4. UTILIDADES
   ============================================ */

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.skip-link {
	position: absolute;
	top: -100%;
	left: var(--space-4);
	background: var(--color-primary);
	color: white;
	padding: var(--space-2) var(--space-4);
	border-radius: var(--radius-md);
	z-index: 1000;
	font-weight: 500;
}

.skip-link:focus {
	top: var(--space-4);
}

.icon {
	width: 20px !important;
	height: 20px !important;
	min-width: 20px;
	max-width: 20px;
	min-height: 20px;
	max-height: 20px;
	flex-shrink: 0;
}

/* ============================================
   5. NAVEGACIÓN STICKY
   ============================================ */

.nav {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--bg-primary);
	border-bottom: 1px solid var(--border-color);
	backdrop-filter: blur(8px);
}

.nav__container {
	max-width: var(--container-max);
	margin: 0 auto;
	padding: 0 var(--space-4);
	height: var(--nav-height);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-3);
}

@media (min-width: 768px) {
	.nav__container {
		padding: 0 var(--space-6);
		gap: var(--space-6);
	}
}

.nav__actions {
	display: flex;
	align-items: center;
	gap: var(--space-2);
}

.nav__logo {
	font-size: var(--text-xl);
	font-weight: 700;
	color: var(--color-primary);
	letter-spacing: -0.02em;
}

.nav__logo:hover {
	color: var(--color-primary-dark);
}

.nav__menu {
	display: none;
	gap: var(--space-1);
	list-style: none;
	margin: 0;
	padding: 0;
}

@media (min-width: 768px) {
	.nav__menu {
		display: flex;
	}
}

.nav__link {
	padding: var(--space-2) var(--space-3);
	color: var(--text-secondary);
	font-size: var(--text-sm);
	font-weight: 500;
	border-radius: var(--radius-md);
	transition: all var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
	color: var(--text-primary);
	background: var(--bg-tertiary);
}

.nav__link--active {
	color: var(--color-primary);
}

/* Nav Buttons */
.nav__btn {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	height: 40px;
	padding: 0 var(--space-3);
	background: transparent;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	cursor: pointer;
	color: var(--text-secondary);
	font-size: var(--text-sm);
	font-weight: 500;
	font-family: inherit;
	transition: all var(--transition-fast);
	-webkit-tap-highlight-color: transparent;
	touch-action: manipulation;
	user-select: none;
}

/* Conmutador de idioma. Es un enlace, no un botón: lleva a otra URL, y esa
   distinción importa para quien navega con teclado o lector de pantalla. */
.nav__btn--lang {
	text-decoration: none;
	font-weight: 600;
	letter-spacing: 0.03em;
	min-width: 40px;
}

.nav__btn:hover {
	background: var(--bg-tertiary);
	color: var(--text-primary);
	border-color: var(--border-color);
}

/* El conmutador no tiene sentido en papel. */
@media print {
	.nav__btn--lang {
		display: none;
	}
}

.nav__btn:active {
	transform: scale(0.95);
}

.nav__btn--pdf {
	background: var(--color-primary-light);
	border-color: transparent;
	color: var(--color-primary);
}

.nav__btn--pdf:hover {
	background: var(--color-primary);
	color: white;
}

.nav__btn-text {
	display: none;
}

@media (min-width: 640px) {
	.nav__btn-text {
		display: inline;
	}
}

.nav__btn--theme {
	width: 40px;
	padding: 0;
	transition: all var(--transition-fast);
}

.nav__btn--theme .icon--moon {
	display: none;
}

[data-theme="dark"] .nav__btn--theme .icon--sun {
	display: none;
}

[data-theme="dark"] .nav__btn--theme .icon--moon {
	display: block;
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) .nav__btn--theme .icon--sun {
		display: none;
	}
	:root:not([data-theme="light"]) .nav__btn--theme .icon--moon {
		display: block;
	}
}

/* ============================================
   6. HERO SECTION
   ============================================ */

.hero {
	background: var(--bg-primary);
	border-bottom: 1px solid var(--border-color);
}

.hero__container {
	max-width: var(--container-max);
	margin: 0 auto;
	padding: var(--space-10) var(--space-6);
	display: grid;
	grid-template-columns: auto 1fr;
	grid-template-rows: auto auto;
	gap: var(--space-6) var(--space-8);
}

/* Avatar */
.hero__avatar {
	grid-row: 1 / 3;
	display: flex;
	align-items: flex-start;
}

.avatar {
	width: 100px;
	height: 100px;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	border: 3px solid var(--bg-primary);
	box-shadow: var(--shadow-lg);
}

.avatar__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.avatar__initials {
	font-size: var(--text-3xl);
	font-weight: 700;
	color: white;
	letter-spacing: -0.02em;
}

@media (min-width: 768px) {
	.avatar {
		width: 120px;
		height: 120px;
	}
	
	.avatar__initials {
		font-size: var(--text-4xl);
	}
}

/* Mobile: layout simplificado */
@media (max-width: 767px) {
	.hero__container {
		display: flex;
		flex-direction: column;
		align-items: center;
		text-align: center;
		gap: var(--space-6);
	}
	
	.hero__avatar {
		order: 1;
	}
	
	.hero__content {
		order: 2;
	}
	
	.hero__contact {
		order: 3;
		width: 100%;
		max-width: 320px;
	}
	
	.hero__tags {
		justify-content: center;
	}
	
	.contact-card {
		justify-content: flex-start;
	}
}

@media (min-width: 768px) {
	.hero__container {
		grid-template-columns: auto 1fr auto;
		grid-template-rows: auto;
		align-items: start;
		padding: var(--space-16) var(--space-6);
	}
	
	.hero__avatar {
		grid-row: 1;
		grid-column: 1;
	}
	
	.hero__content {
		grid-row: 1;
		grid-column: 2;
	}
	
	.hero__contact {
		grid-row: 1;
		grid-column: 3;
	}
}

.hero__badge {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	padding: var(--space-1) var(--space-3);
	background: var(--color-primary-light);
	color: var(--color-primary);
	font-size: var(--text-xs);
	font-weight: 600;
	border-radius: var(--radius-full);
	margin-bottom: var(--space-4);
}

.hero__badge::before {
	content: '';
	width: 8px;
	height: 8px;
	background: var(--color-primary);
	border-radius: 50%;
	animation: pulse 2s infinite;
}

@keyframes pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.5; }
}

.hero__name {
	font-size: var(--text-3xl);
	font-weight: 700;
	letter-spacing: -0.02em;
	margin-bottom: var(--space-2);
}

@media (min-width: 768px) {
	.hero__name {
		font-size: var(--text-4xl);
	}
}

.hero__role {
	font-size: var(--text-xl);
	color: var(--text-secondary);
	font-weight: 500;
	margin-bottom: var(--space-4);
}

.hero__summary {
	font-size: var(--text-base);
	color: var(--text-secondary);
	max-width: 540px;
	margin-bottom: var(--space-6);
}

.hero__tags {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

.tag {
	display: inline-block;
	padding: var(--space-1) var(--space-3);
	background: var(--bg-tertiary);
	color: var(--text-secondary);
	font-size: var(--text-sm);
	font-weight: 500;
	border-radius: var(--radius-md);
	border: 1px solid var(--border-color);
}

/* Hero Contact Sidebar */
.hero__contact {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

@media (min-width: 768px) {
	.hero__contact {
		min-width: 240px;
		padding-left: var(--space-8);
		border-left: 1px solid var(--border-color);
	}
}

.contact-card {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-3);
	background: var(--bg-secondary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	color: var(--text-secondary);
	font-size: var(--text-sm);
	transition: all var(--transition-fast);
}

.contact-card:hover {
	background: var(--bg-tertiary);
	border-color: var(--color-primary);
	color: var(--text-primary);
}

.contact-card--location {
	cursor: default;
}

.contact-card--location:hover {
	border-color: var(--border-color);
}

.contact-card__icon {
	width: 20px;
	height: 20px;
	min-width: 20px;
	max-width: 20px;
	min-height: 20px;
	max-height: 20px;
	color: var(--color-primary);
	flex-shrink: 0;
	flex-grow: 0;
	display: block;
}

/* Forzar tamaño en SVG inline */
.contact-card__icon,
.contact-card__icon svg {
	width: 20px !important;
	height: 20px !important;
}

/* ============================================
   7. MAIN CONTENT
   ============================================ */

.main {
	max-width: var(--container-max);
	margin: 0 auto;
	padding: var(--space-8) var(--space-6);
}

/* ============================================
   8. SECCIONES
   ============================================ */

.section {
	margin-bottom: var(--space-12);
}

.section__header {
	margin-bottom: var(--space-6);
}

.section__header--sub {
	margin-top: var(--space-8);
	margin-bottom: var(--space-4);
}

.section__title {
	font-size: var(--text-2xl);
	font-weight: 700;
	color: var(--text-primary);
	letter-spacing: -0.02em;
}

.section__title--sub {
	font-size: var(--text-lg);
	font-weight: 600;
}

.section__subtitle {
	font-size: var(--text-sm);
	color: var(--text-tertiary);
	margin-top: var(--space-1);
}

/* ============================================
   9. TIMELINE (Experiencia)
   ============================================ */

.timeline {
	position: relative;
	display: flex;
	flex-direction: column;
	gap: var(--space-6);
}

.timeline::before {
	content: '';
	position: absolute;
	left: 7px;
	top: 8px;
	bottom: 8px;
	width: 2px;
	background: var(--border-color);
}

.timeline__item {
	position: relative;
	padding-left: var(--space-8);
}

.timeline__marker {
	position: absolute;
	left: 0;
	top: 8px;
	width: 16px;
	height: 16px;
	background: var(--bg-primary);
	border: 3px solid var(--color-primary);
	border-radius: 50%;
	z-index: 1;
}

.timeline__content {
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
	transition: box-shadow var(--transition-base);
}

.timeline__content:hover {
	box-shadow: var(--shadow-md);
}

.timeline__header {
	display: flex;
	flex-direction: column;
	gap: var(--space-1);
	margin-bottom: var(--space-4);
}

@media (min-width: 640px) {
	.timeline__header {
		flex-direction: row;
		justify-content: space-between;
		align-items: flex-start;
	}
}

.timeline__role {
	font-size: var(--text-lg);
	font-weight: 600;
	color: var(--text-primary);
}

.timeline__company {
	font-size: var(--text-sm);
	color: var(--color-primary);
	font-weight: 500;
}

/* Tipo de vínculo laboral. Existe para explicar los empleos solapados de
   2019-2023: sin esta línea, cuatro puestos simultáneos se leen como error. */
.timeline__engagement {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
	font-weight: 400;
	margin-top: var(--space-1);
}

.timeline__period {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
	font-weight: 500;
	background: var(--bg-tertiary);
	padding: var(--space-1) var(--space-2);
	border-radius: var(--radius-sm);
	white-space: nowrap;
}

.timeline__achievements {
	margin-bottom: var(--space-4);
}

.timeline__achievements li {
	position: relative;
	padding-left: var(--space-5);
	margin-bottom: var(--space-2);
	font-size: var(--text-sm);
	color: var(--text-secondary);
}

.timeline__achievements li::before {
	content: '→';
	position: absolute;
	left: 0;
	color: var(--color-primary);
	font-weight: 600;
}

.timeline__achievements li:last-child {
	margin-bottom: 0;
}

.timeline__stack {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

/* Chips */
.chip {
	display: inline-block;
	padding: var(--space-1) var(--space-2);
	background: var(--color-primary-light);
	color: var(--color-primary);
	font-size: var(--text-xs);
	font-weight: 500;
	border-radius: var(--radius-sm);
}

.chip--small {
	padding: 2px var(--space-2);
	font-size: 0.7rem;
}

/* ============================================
   10. STACK GRID
   ============================================ */

.stack-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
	gap: var(--space-4);
}

.stack-card {
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
	transition: all var(--transition-base);
}

.stack-card:hover {
	border-color: var(--color-primary);
	box-shadow: var(--shadow-md);
}

.stack-card__icon {
	width: 48px;
	height: 48px;
	min-width: 48px;
	min-height: 48px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--color-primary-light);
	border-radius: var(--radius-md);
	margin-bottom: var(--space-4);
	color: var(--color-primary);
	flex-shrink: 0;
}

.stack-card__icon svg {
	width: 20px !important;
	height: 20px !important;
	max-width: 20px;
	max-height: 20px;
}

.stack-card__title {
	font-size: var(--text-sm);
	font-weight: 600;
	color: var(--text-primary);
	margin-bottom: var(--space-3);
}

.stack-card__list li {
	font-size: var(--text-sm);
	color: var(--text-secondary);
	padding: var(--space-1) 0;
	border-bottom: 1px solid var(--border-light);
}

.stack-card__list li:last-child {
	border-bottom: none;
}

/* ============================================
   11. PROYECTOS
   ============================================ */

.projects-grid {
	display: grid;
	gap: var(--space-4);
}

@media (min-width: 640px) {
	.projects-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

.project-card {
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
	transition: all var(--transition-base);
}

.project-card:hover {
	border-color: var(--color-primary);
	box-shadow: var(--shadow-md);
}

.project-card__header {
	margin-bottom: var(--space-4);
}

.project-card__title {
	font-size: var(--text-lg);
	font-weight: 600;
	margin-bottom: var(--space-3);
}

.project-card__tags {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

.project-card__features li {
	position: relative;
	padding-left: var(--space-5);
	margin-bottom: var(--space-2);
	font-size: var(--text-sm);
	color: var(--text-secondary);
}

.project-card__features li::before {
	content: '✓';
	position: absolute;
	left: 0;
	color: var(--color-primary);
	font-weight: 600;
}

/* ============================================
   12. EDUCACIÓN
   ============================================ */

.education-grid {
	display: grid;
	gap: var(--space-4);
}

@media (min-width: 640px) {
	.education-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

.edu-card {
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
}

.edu-card__title {
	font-size: var(--text-base);
	font-weight: 600;
	margin-bottom: var(--space-1);
}

.edu-card__institution {
	font-size: var(--text-sm);
	color: var(--color-primary);
	margin-bottom: var(--space-2);
}

.edu-card__period {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
}

/* Certificaciones - Cards de texto */
.certs-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: var(--space-3);
}

@media (min-width: 640px) {
	.certs-grid {
		grid-template-columns: repeat(3, 1fr);
		gap: var(--space-4);
	}
}

@media (min-width: 1024px) {
	.certs-grid {
		grid-template-columns: repeat(5, 1fr);
	}
}

.cert-card {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-3);
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	cursor: pointer;
	transition: all var(--transition-fast);
}

.cert-card:hover {
	border-color: var(--color-primary);
	background: var(--bg-secondary);
}

.cert-card__icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	min-width: 32px;
	background: var(--color-primary-light);
	border-radius: var(--radius-sm);
	color: var(--color-primary);
}

.cert-card__icon svg {
	width: 16px;
	height: 16px;
}

.cert-card__content {
	flex: 1;
	min-width: 0;
}

.cert-card__title {
	font-size: var(--text-sm);
	font-weight: 600;
	color: var(--text-primary);
	margin: 0;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.cert-card__category {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
}

/* Certificaciones colapsadas.
   Se ocultan SOLO cuando hay JavaScript (data-js lo pone main.js al cargar):
   sin él se ven las diecinueve, que es el comportamiento correcto si el script
   falla o el navegador lo bloquea. Ocultarlas por defecto y revelarlas con JS
   dejaría media sección invisible ante cualquier fallo. */
[data-js="true"] .certs-grid[data-expanded="false"] .cert-card--extra {
	display: none;
}

.certs-toggle {
	display: block;
	margin: var(--space-5) auto 0;
	padding: var(--space-2) var(--space-5);
	background: transparent;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	color: var(--text-secondary);
	font-family: inherit;
	font-size: var(--text-sm);
	font-weight: 500;
	cursor: pointer;
	transition: all var(--transition-fast);
}

.certs-toggle:hover,
.certs-toggle:focus-visible {
	background: var(--bg-tertiary);
	color: var(--text-primary);
}

/* En papel se imprimen todas y el botón sobra. */
@media print {
	.cert-card--extra {
		display: flex !important;
	}

	.certs-toggle {
		display: none !important;
	}
}

/* Certificado sin imagen de diploma: la tarjeta es un enlace y lleva a la
   verificación en Platzi. La flecha avisa de que se comporta distinto al
   resto, que abren el diploma en un modal. */
.cert-card--verify {
	position: relative;
	text-decoration: none;
	color: inherit;
}

.cert-card--verify::after {
	content: "↗";
	position: absolute;
	top: var(--space-2);
	right: var(--space-3);
	font-size: var(--text-xs);
	color: var(--text-tertiary);
	line-height: 1;
}

/* En papel no hay adónde ir. */
@media print {
	.cert-card--verify::after {
		display: none;
	}
}

/* Emisor, fecha y código bajo la imagen del diploma en el modal. Es donde la
   verificación tiene sentido: la tarjeta se mantiene limpia y quien abre el
   certificado encuentra ahí con qué comprobarlo. */
.cert-modal__meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-2) var(--space-4);
	margin-top: var(--space-3);
	font-size: var(--text-xs);
	color: var(--text-tertiary);
}

.cert-modal__code {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: 0.72rem;
	word-break: break-all;
}

.cert-modal__verify {
	color: var(--color-primary);
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
}

.cert-modal__verify:hover,
.cert-modal__verify:focus-visible {
	text-decoration: underline;
}

/* Emisor y fecha del diploma. Un certificado con emisor y fecha vale mucho más
   que uno solo listado: es comprobable. */
.cert-card__meta {
	display: block;
	font-size: var(--text-xs);
	color: var(--text-tertiary);
	opacity: 0.75;
	margin-top: 2px;
}

/* Modal Lightbox */
.cert-modal {
	position: fixed;
	inset: 0;
	z-index: 1000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: var(--space-4);
}

.cert-modal[hidden] {
	display: none;
}

.cert-modal__overlay {
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0.8);
	backdrop-filter: blur(4px);
}

.cert-modal__content {
	position: relative;
	max-width: 900px;
	max-height: 90vh;
	width: 100%;
	background: var(--bg-primary);
	border-radius: var(--radius-xl);
	overflow: hidden;
	box-shadow: var(--shadow-lg);
	animation: modalIn 0.2s ease;
}

@keyframes modalIn {
	from {
		opacity: 0;
		transform: scale(0.95);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

.cert-modal__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--space-4) var(--space-5);
	border-bottom: 1px solid var(--border-color);
}

.cert-modal__title {
	font-size: var(--text-lg);
	font-weight: 600;
	color: var(--text-primary);
}

.cert-modal__close {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	background: var(--bg-tertiary);
	border: none;
	border-radius: var(--radius-md);
	cursor: pointer;
	color: var(--text-secondary);
	transition: all var(--transition-fast);
}

.cert-modal__close:hover {
	background: var(--color-primary);
	color: white;
}

.cert-modal__close svg {
	width: 20px;
	height: 20px;
}

.cert-modal__body {
	padding: var(--space-4);
	overflow: auto;
	max-height: calc(90vh - 80px);
}

.cert-modal__img {
	width: 100%;
	height: auto;
	border-radius: var(--radius-md);
}

/* Idiomas */
.languages-grid {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
}

.lang-item {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	padding: var(--space-2) var(--space-4);
	background: var(--bg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
}

.lang-item__name {
	font-weight: 600;
	font-size: var(--text-sm);
}

.lang-item__level {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
}

/* Matiz del nivel de inglés. Una etiqueta suelta ("B1", "Intermedio") invita a
   que el entrevistador la ponga a prueba en los primeros dos minutos; decir
   qué se puede hacer con el idioma evita esa sorpresa. */
.languages-note {
	margin-top: var(--space-3);
	font-size: var(--text-sm);
	color: var(--text-secondary);
	max-width: 60ch;
}

/* ============================================
   13. CTA BOX
   ============================================ */

.section--cta {
	margin-bottom: 0;
}

.cta-box {
	background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
	border-radius: var(--radius-xl);
	padding: var(--space-8);
	display: flex;
	flex-direction: column;
	gap: var(--space-6);
	align-items: center;
	text-align: center;
}

@media (min-width: 640px) {
	.cta-box {
		flex-direction: row;
		justify-content: space-between;
		text-align: left;
	}
}

.cta-box__title {
	font-size: var(--text-xl);
	font-weight: 700;
	color: white;
	margin-bottom: var(--space-2);
}

.cta-box__text {
	font-size: var(--text-sm);
	color: rgba(255, 255, 255, 0.9);
	margin-bottom: var(--space-1);
}

.cta-box__meta {
	font-size: var(--text-xs);
	color: rgba(255, 255, 255, 0.7);
}

/* Descargas del CV en formato ATS. Van aquí, junto a la disponibilidad, y no
   en la navegación: el botón PDF de arriba imprime esta misma página, y dos
   cosas llamadas "PDF" en la misma barra se confunden. */
.cta-box__downloads {
	margin-top: var(--space-3);
	font-size: var(--text-xs);
	color: rgba(255, 255, 255, 0.7);
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-2);
}

.cta-box__downloads a {
	color: white;
	font-weight: 600;
	text-decoration: none;
	border: 1px solid rgba(255, 255, 255, 0.45);
	border-radius: var(--radius-sm);
	padding: 2px var(--space-2);
	transition: background var(--transition-fast);
}

.cta-box__downloads a:hover,
.cta-box__downloads a:focus-visible {
	background: rgba(255, 255, 255, 0.18);
}

/* En papel no hay nada que descargar. */
@media print {
	.cta-box__downloads {
		display: none;
	}
}

.cta-box__button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: var(--space-3) var(--space-6);
	background: white;
	color: var(--color-primary);
	font-weight: 600;
	font-size: var(--text-sm);
	border-radius: var(--radius-md);
	transition: all var(--transition-fast);
	white-space: nowrap;
}

.cta-box__button:hover {
	background: var(--color-gray-100);
	transform: translateY(-2px);
	box-shadow: var(--shadow-lg);
}

/* ============================================
   14. FOOTER
   ============================================ */

.footer {
	background: var(--bg-primary);
	border-top: 1px solid var(--border-color);
	padding: var(--space-8) var(--space-6);
	text-align: center;
}

.footer__text {
	font-size: var(--text-sm);
	color: var(--text-secondary);
	font-style: italic;
	margin-bottom: var(--space-2);
}

.footer__links {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--space-2);
	font-size: var(--text-sm);
	margin-bottom: var(--space-2);
}

.footer__links a {
	color: var(--color-primary);
	text-decoration: none;
}

.footer__links a:hover,
.footer__links a:focus-visible {
	text-decoration: underline;
}

/* Aviso de privacidad del analytics. El backend anonimiza las IPs desde el
   primer día, pero hasta ahora eso solo constaba en el código: quien visita
   la página no tenía forma de saberlo sin leer el repositorio. */
.footer__privacy {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
	max-width: 62ch;
	margin: var(--space-4) auto 0;
	line-height: 1.5;
}

.footer__copy {
	font-size: var(--text-xs);
	color: var(--text-tertiary);
}

/* ============================================
   15. ACCESIBILIDAD
   ============================================ */

:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

/* ============================================
   16. PRINT STYLES
   ============================================ */

@media print {
	.nav,
	.skip-link,
	.cta-box__button {
		display: none !important;
	}

	body {
		background: white;
		font-size: 11pt;
	}

	.hero,
	.section,
	.footer {
		page-break-inside: avoid;
	}

	.timeline__content,
	.stack-card,
	.project-card,
	.edu-card {
		box-shadow: none;
		border: 1px solid #ddd;
	}

	a[href]::after {
		content: " (" attr(href) ")";
		font-size: 9pt;
		color: #666;
	}

	.contact-card::after {
		content: none;
	}
}

/* ============================================
   17. MOBILE FIXES
   ============================================ */

@media (max-width: 767px) {
	/* Navegación móvil */
	.nav__container {
		padding: 0 var(--space-3);
	}
	
	.nav__btn {
		height: 36px;
		padding: 0 var(--space-2);
	}
	
	.nav__btn--theme {
		width: 36px;
	}
	
	/* Hero móvil */
	.hero__container {
		padding: var(--space-6) var(--space-4);
	}
	
	.hero__name {
		font-size: var(--text-2xl);
	}
	
	.hero__role {
		font-size: var(--text-lg);
	}
	
	.hero__summary {
		font-size: var(--text-sm);
	}
	
	/* Contacto móvil - iconos pequeños y controlados */
	.contact-card {
		padding: var(--space-2) var(--space-3);
		font-size: var(--text-sm);
	}
	
	.contact-card__icon,
	.contact-card__icon svg,
	.contact-card svg {
		width: 18px !important;
		height: 18px !important;
		min-width: 18px !important;
		max-width: 18px !important;
		min-height: 18px !important;
		max-height: 18px !important;
		flex-shrink: 0 !important;
	}
	
	/* Certificaciones móvil */
	.certs-grid {
		grid-template-columns: 1fr;
		gap: var(--space-2);
	}
	
	.cert-card {
		padding: var(--space-2) var(--space-3);
	}
	
	.cert-card__icon {
		width: 28px;
		height: 28px;
		min-width: 28px;
	}
	
	.cert-card__icon svg {
		width: 14px;
		height: 14px;
	}
	
	/* Main content móvil */
	.main {
		padding: var(--space-6) var(--space-4);
	}
	
	.section {
		margin-bottom: var(--space-8);
	}
	
	.section__title {
		font-size: var(--text-xl);
	}
	
	/* Timeline móvil */
	.timeline__role {
		font-size: var(--text-base);
	}
	
	/* Stack cards móvil */
	.stack-grid {
		grid-template-columns: 1fr;
		gap: var(--space-3);
	}
	
	.stack-card {
		padding: var(--space-4);
	}
	
	.stack-card__icon {
		width: 40px !important;
		height: 40px !important;
		min-width: 40px !important;
		min-height: 40px !important;
		margin-bottom: var(--space-3);
	}
	
	.stack-card__icon svg {
		width: 18px !important;
		height: 18px !important;
		max-width: 18px !important;
		max-height: 18px !important;
	}
	
	/* Avatar móvil */
	.avatar {
		width: 80px;
		height: 80px;
	}
	
	.avatar__initials {
		font-size: var(--text-2xl);
	}
}

/* Extra small screens */
@media (max-width: 380px) {
	.hero__name {
		font-size: var(--text-xl);
	}
	
	.tag {
		font-size: var(--text-xs);
		padding: 2px var(--space-2);
	}
	
	.chip {
		font-size: 0.65rem;
	}
}