:root {
  --background: 220 20% 8%;
  --foreground: 210 20% 95%;

  --card: 220 18% 12%;
  --card-foreground: 210 20% 95%;

  --primary: 121 70% 21%;
  --primary-foreground: 210 20% 98%;

  --secondary: 220 15% 18%;
  --secondary-foreground: 210 20% 90%;

  --muted: 220 15% 20%;
  --muted-foreground: 215 15% 60%;

  --accent: 143 82% 50%;
  --accent-foreground: 120 50% 80%;

  --success: 142 70% 45%;
  --success-foreground: 210 20% 98%;

  --border-subtle: 220 15% 18%;

  --radius: 0.75rem;
  --radius-sm: calc(var(--radius) - 0.25rem);
  --radius-xs: calc(var(--radius) - 0.35rem);
  --radius-pill: 999px;
  --radius-round: 9999px;
  
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Outfit", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --container-max: 1100px;
  --container-pad: 3rem;
  --section-pad: 6rem;

  --shadow-soft: 0 10px 30px hsl(var(--background) / 0.6);
  --shadow-button: 0 12px 40px hsl(var(--primary) / 0.25);
  --shadow-card: 0 18px 45px hsl(var(--background) / 0.45);
  --shadow-lift: 0 18px 55px hsl(var(--primary) / 0.1);
  --shadow-lift-strong: 0 20px 55px hsl(var(--primary) / 0.15);
  --shadow-hero: 0 25px 70px hsl(var(--primary) / 0.2);

  --duration-fast: 200ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --duration-fade: 600ms;
  --duration-fade-up: 800ms;
  --ease-standard: ease;
  --ease-out: ease-out;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.animated-background-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.animated-background-container canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.animated-background-fps {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  font-size: 0.75rem;
  color: hsl(var(--foreground) / 0.8);
  background: hsl(var(--background) / 0.7);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  display: none;
}

.animated-background-container[data-show-fps="true"] .animated-background-fps {
  display: inline-flex;
}

.langSwitcher {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 50;
}

.langSwitcher__select {
  appearance: none;
  border: 1px solid hsl(var(--border-subtle));
  background: hsl(var(--card) / 0.9);
  color: hsl(var(--foreground));
  border-radius: var(--radius-pill);
  padding: 0.45rem 2.1rem 0.45rem 0.9rem;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition:
    transform var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    background var(--duration-fast) var(--ease-standard);
  background-image:
    linear-gradient(45deg, transparent 50%, hsl(var(--foreground)) 50%),
    linear-gradient(135deg, hsl(var(--foreground)) 50%, transparent 50%);
  background-position:
    calc(100% - 1.15rem) 50%,
    calc(100% - 0.9rem) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.langSwitcher__select:hover {
  transform: translateY(-1px);
  border-color: hsl(var(--primary) / 0.6);
  background: hsl(var(--card));
}

.langSwitcher__select:focus-visible {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.page {
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

.container {
  width: min(var(--container-max), calc(100% - var(--container-pad)));
  margin-inline: auto;
}

.section {
  padding-block: var(--section-pad);
  background: hsl(var(--background) / 0.65);
}

.section--alt {
  background: hsl(var(--secondary) / 0.55);
}

.section__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
}

.section__divider {
  width: var(--space-1);
  height: var(--space-6);
  background: hsl(var(--primary));
  border-radius: var(--radius-pill);
  flex: none;
}

.section__title {
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  font-weight: 800;
}

.text-primary {
  color: hsl(var(--primary));
}

.text-muted {
  color: hsl(var(--muted-foreground));
}

.text-foreground-90 {
  color: hsl(var(--foreground) / 0.9);
}

.text-sm {
  font-size: var(--text-sm);
}

.text-base {
  font-size: var(--text-base);
}

.text-lg {
  font-size: var(--text-lg);
}

.strong {
  font-weight: 600;
}

.leading-relaxed {
  line-height: 1.75;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(
    135deg,
    hsl(var(--background) / 0.8) 0%,
    hsl(var(--background) / 0.5) 55%,
    hsl(var(--secondary) / 0.3) 100%
  );
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: var(--radius-round);
  filter: blur(64px);
  transform: translateZ(0);
}

.blob--a {
  top: 25%;
  left: -8rem;
  width: 16rem;
  height: 16rem;
  background: hsl(var(--primary) / 0.1);
}

.blob--b {
  bottom: 25%;
  right: -8rem;
  width: 24rem;
  height: 24rem;
  background: hsl(var(--accent) / 0.05);
}

.blob--c {
  top: 50%;
  left: 50%;
  width: 50rem;
  height: 50rem;
  transform: translate(-50%, -50%);
  background: hsl(var(--primary) / 0.05);
}

.hero__container {
  position: relative;
  z-index: 1;
  padding-block: 5rem;
}

.hero__grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-7);
}

.hero__text {
  flex: 1;
  order: 2;
  text-align: center;
}

.hero__title {
  margin: 0 0 1.5rem;
  font-weight: 800;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -0.02em;
}

.hero__lead {
  margin: 0 0 2.5rem;
  max-width: 42rem;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: hsl(var(--muted-foreground));
}

.button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  padding: var(--space-4) var(--space-6);
  border-radius: calc(var(--radius) - 0.125rem);
  font-weight: 700;
  transition:
    transform var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard),
    background var(--duration-fast) var(--ease-standard);
  will-change: transform;
}

.button:hover {
  background: hsl(var(--primary) / 0.9);
  box-shadow: var(--shadow-button);
  transform: translateY(-1px);
}

.button__icon {
  width: 1.25rem;
  height: 1.25rem;
}

.hero__image {
  order: 1;
  position: relative;
}

.hero__imageGlow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.3), hsl(var(--accent) / 0.2));
  border-radius: var(--radius-round);
  filter: blur(48px);
  transform: scale(1.12);
}

.hero__imageFrame {
  position: relative;
  width: 16rem;
  height: 16rem;
  border-radius: var(--radius-round);
  overflow: hidden;
  border: 4px solid hsl(var(--primary) / 0.3);
  box-shadow: var(--shadow-hero);
}

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

@media (min-width: 768px) {
  .hero__imageFrame {
    width: 20rem;
    height: 20rem;
  }
}

@media (min-width: 1024px) {
  .hero__grid {
    flex-direction: row;
    gap: 5rem;
  }

  .hero__text {
    order: 1;
    text-align: left;
  }

  .hero__image {
    order: 2;
  }
}

/* About */
.about {
  max-width: 56rem;
}

.about__highlight {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-block: var(--space-6);
}

.about__years {
  flex: none;
}

.about__yearsNumber {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  color: hsl(var(--success));
  font-size: clamp(4.5rem, 8vw, 6rem);
  line-height: 1;
}

.about__highlight p {
  margin: 0;
}

@media (min-width: 768px) {
  .about__highlight {
    flex-direction: row;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  .about__highlight {
    gap: var(--space-2);
  }
}

/* Grids & cards */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--skills {
  grid-template-columns: 1fr;
}

.card,
.projectCard,
.serviceCard,
.contactCard,
.techGroup {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border-subtle));
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  .grid--skills {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid--skills {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.card {
  padding: var(--space-5);
  user-select: text;
  -webkit-user-drag: none;
}

.iconBox {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-sm);
  background: hsl(var(--primary) / 0.1);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: background var(--duration-fast) var(--ease-standard);
}

.iconImg {
  width: 60%;
  height: 60%;
  object-fit: contain;
  display: block;
}

.card__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: 700;
}

.card__text {
  margin: 0;
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
}

.hover-lift {
  transition:
    transform var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    background var(--duration-base) var(--ease-standard);
  will-change: transform;
}

.hover-lift:hover {
  transform: translateY(-6px);
  border-color: hsl(var(--primary) / 0.5);
  background: hsl(var(--card) / 0.95);
  box-shadow: var(--shadow-lift);
}

.hover-lift:hover .iconBox {
  background: hsl(var(--primary) / 0.2);
}

/* Projects */
.grid--projects {
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid--projects {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid--projects {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.projectCard {
  overflow: hidden;
}

.projectCard__media {
  position: relative;
  height: 13rem;
  overflow: hidden;
}

.projectCard__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform var(--duration-slow) var(--ease-standard);
}

.projectCard:hover .projectCard__media img {
  transform: scale(1.05);
}

.projectCard__body {
  padding: var(--space-5);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.projectCard__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.25;
}

.projectCard__text {
  margin: 0;
  color: hsl(var(--muted-foreground));
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* Tech stack */
.techGroups {
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 900px) {
  .techGroups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.techGroup {
  overflow: hidden;
  min-height: 100%;
  box-shadow: var(--shadow-card);
  transition:
    transform var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    background var(--duration-base) var(--ease-standard);
  will-change: transform;
}

.techGroup:hover {
  transform: translateY(-6px);
  border-color: hsl(var(--primary) / 0.5);
  background: hsl(var(--card) / 0.95);
  box-shadow: var(--shadow-lift-strong);
}

.techGroup__header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) 1.75rem;
  border-bottom: 1px solid hsl(var(--border-subtle));
  background: hsl(var(--secondary) / 0.5);
}

.techGroup__icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-xs);
  display: grid;
  place-items: center;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  box-shadow: inset 0 0 0 1px hsl(var(--border-subtle));
}

.techGroup__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.techGroup__list {
  list-style: none;
  margin: 0;
  padding: 1.25rem 1.75rem 1.75rem;
  display: grid;
  gap: 0.85rem;
}

.techGroup__list li {
  position: relative;
  padding-left: 1.2rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.95rem;
}

.techGroup__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: var(--radius-pill);
  background: hsl(216, 46%, 39%);
}

.techGroup--dev .techGroup__header {
  background: linear-gradient(135deg, hsl(215 30% 20%), hsl(220 20% 16%));
}

.techGroup--geo .techGroup__header {
  background: linear-gradient(135deg, hsl(145 30% 18%), hsl(200 25% 16%));
}

.techGroup--eng .techGroup__header {
  background: linear-gradient(135deg, hsl(15 35% 18%), hsl(330 25% 16%));
}

.techGroup--geo .techGroup__list li::before {
  background: hsl(142 70% 45%);
}

.techGroup--eng .techGroup__list li::before {
  background: hsl(10 80% 55%);
}

/* Services */
.grid--services {
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid--services {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.serviceCard {
  padding: var(--space-6);
}

.serviceCard__icon {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-5);
  font-size: 1.75rem;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.2), hsl(var(--accent) / 0.1));
}

.serviceCard__title {
  margin: 0 0 var(--space-4);
  font-size: var(--text-xl);
  font-weight: 750;
  line-height: 1.25;
}

.serviceCard__text {
  margin: 0;
  color: hsl(var(--muted-foreground));
}

/* Contact */
.grid--contact {
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: 56rem;
}

@media (min-width: 768px) {
  .grid--contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.contactCard {
  display: block;
  text-decoration: none;
  padding: var(--space-5);
}

.contactCard__icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
  background: var(--contact-bg, hsl(var(--primary) / 0.1));
  color: var(--contact-fg, hsl(var(--primary)));
  transition: background var(--duration-fast) var(--ease-standard);
}

.contactCard:hover .contactCard__icon {
  background: var(--contact-bg-hover, hsl(var(--primary) / 0.2));
}

.contactCard__title {
  margin: 0 0 var(--space-1);
  font-weight: 700;
}

.contactCard__text {
  margin: 0;
  color: hsl(var(--muted-foreground));
  font-size: var(--text-sm);
  overflow-wrap: anywhere;
  user-select: text;
}

.contactCard--whatsapp {
  --contact-bg: hsl(142 70% 45% / 0.1);
  --contact-bg-hover: hsl(142 70% 45% / 0.2);
  --contact-fg: #4ade80;
}

.contactCard--whatsapp .iconImg {
  transform: translateX(2px);
}

.contactCard--email {
  --contact-bg: hsl(var(--primary) / 0.1);
  --contact-bg-hover: hsl(var(--primary) / 0.2);
  --contact-fg: hsl(var(--primary));
}

.contactCard--linkedin {
  --contact-bg: hsl(210 100% 60% / 0.1);
  --contact-bg-hover: hsl(210 100% 60% / 0.2);
  --contact-fg: #60a5fa;
}

/* Footer */
.footer {
  padding-block: var(--space-6);
  background: hsl(var(--secondary) / 0.3);
  border-top: 1px solid hsl(var(--border-subtle));
}

.footer__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__container {
    flex-direction: row;
    text-align: left;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInSoft {
  from {
    opacity: 0.1;
  }
  to {
    opacity: 0.3;
  }
}

.animate-fade-in-up {
  opacity: 0;
  animation: fadeInUp var(--duration-fade-up) var(--ease-out) forwards;
}

.animate-fade-in {
  opacity: 0;
  animation: fadeIn var(--duration-fade) var(--ease-out) forwards;
}

.delay-200 {
  animation-delay: 200ms;
}

.delay-400 {
  animation-delay: 400ms;
}

.delay-600 {
  animation-delay: 600ms;
}

@media (max-width: 767px) {
  .hero__image.animate-fade-in {
    opacity: 1;
    animation: none;
  }

  .hero__image.animate-fade-in .hero__imageGlow {
    animation: fadeInSoft 400ms var(--ease-out) forwards;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .animate-fade-in-up,
  .animate-fade-in {
    opacity: 1;
    animation: none;
    transform: none;
  }

  .hover-lift,
  .button {
    transition: none;
  }

  .hover-lift:hover {
    transform: none;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: hsl(var(--background));
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--muted));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground));
}