/* ===== CSS VARIABLES (DESIGN SYSTEM) ===== */
:root {
  /* Cores */
  --primary-color: #3b82f6;
  --primary-color-rgb: 59, 130, 246;
  --secondary-color: #ffffff;
  --accent-color: #dbeafe;
  --text-color: #333333;
  --heading-color: #222222;
  --link-hover-color: #2563eb;
  --background-light: #fefefe;
  --background-dark: #f8f8f8;
  --border-color: #e0e0e0;
  --shadow-color: rgba(0, 0, 0, 0.1);

  /* Tipografia */
  --heading-font: 'Lato', sans-serif;
  --body-font: 'Open Sans', sans-serif;
  --base-font-size: 16px;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Layout */
  --spacing-unit: 1rem;
  --spacing-xs: calc(var(--spacing-unit) * 0.25);
  --spacing-sm: calc(var(--spacing-unit) * 0.5);
  --spacing-md: calc(var(--spacing-unit) * 1);
  --spacing-lg: calc(var(--spacing-unit) * 1.5);
  --spacing-xl: calc(var(--spacing-unit) * 2);
  --spacing-xxl: calc(var(--spacing-unit) * 3);

  --border-radius: 8px;
  --border-radius-sm: 4px;
  --border-radius-lg: 12px;

  --shadow-light: 0 2px 6px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.2);

  --container-max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--base-font-size);
}

body {
  font-family: var(--body-font);
  font-weight: var(--font-weight-normal);
  color: var(--text-color);
  line-height: 1.6;
  background-color: var(--secondary-color);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font);
  font-weight: var(--font-weight-semibold);
  color: var(--heading-color);
  line-height: 1.2;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2rem);
  font-weight: var(--font-weight-bold);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--text-color);
  position: relative;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  font-size: 0.9rem;
}

.btn--primary {
  padding: calc(var(--spacing-sm) * 0.8) calc(var(--spacing-lg) * 0.3);
  background: linear-gradient(135deg, var(--primary-color), var(--link-hover-color));
  color: var(--secondary-color);
  box-shadow: var(--shadow-light);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  background: linear-gradient(135deg, var(--link-hover-color), var(--primary-color));
}

.btn--large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.1rem;
}

.btn--full {
  width: 100%;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-light);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* BRANDING */
.brand-logo {
  display: flex;
  align-items: center;
  height: 40px;
}

.logo-text {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: var(--transition-normal);
}

.logo-text:hover {
  color: var(--link-hover-color);
  transform: translateY(-1px);
}

.nav__logo .logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-normal);
}

.nav__logo .logo-img:hover {
  transform: scale(1.05);
}

.nav__menu {
  display: none;
}

/* Mobile menu styles */
.nav__menu.show-menu {
  display: block;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: var(--secondary-color);
  box-shadow: var(--shadow-medium);
  z-index: 999;
}

.nav__menu.show-menu .nav__list {
  flex-direction: column;
  padding: var(--spacing-lg);
  gap: var(--spacing-md);
}

.nav__menu.show-menu .nav__link {
  display: block;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.nav__menu.show-menu .nav__link:last-child {
  border-bottom: none;
}

/* Toggle button animation */
.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav__link {
  font-weight: var(--font-weight-semibold);
  color: var(--text-color);
  transition: color var(--transition-fast);
}

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

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

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  outline: none;
}

.nav__toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
  padding-top: var(--header-height);
}

.hero__container {
  display: grid;
  gap: var(--spacing-xs);
  align-items: center;
}

.hero__content {
  text-align: center;
}

.hero__title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--heading-color), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem);
  margin-bottom: var(--spacing-xl);
  color: var(--text-color);
  opacity: 0.8;
}

.hero__image {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
}

.hero__img {
  width: 100%;
  height: 350px;
  object-fit: cover;
}

/* ===== ABOUT SECTION ===== */
.about {
  background: var(--background-light);
  padding: calc(var(--header-height) + var(--spacing-lg)) 0 var(--spacing-lg) 0;
}

.about__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl) auto;
  /* gap: var(--spacing-sm); */
}

.about__image {
  position: relative;
  text-align: center;
}

.about__img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--primary-color);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transition: var(--transition-normal);
}

.about__img:hover {
  transform: scale(1.05);
  border-color: var(--link-hover-color);
}

.about__content {
  text-align: center;
  width: 100%;
  max-width: 100%;
}

.about__subtitle {
  font-size: 1.5rem;
  color: var(--text-color);
  margin-bottom: var(--spacing-lg);
  font-weight: var(--font-weight-semibold);
}

.about__description {
  font-size: 1.25rem;
  color: var(--text-color);
  margin-bottom: var(--spacing-xs);
  line-height: 1.5;
  text-align: justify;
}

.github__stats {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.stat__item {
  background: var(--secondary-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  text-align: center;
  min-width: 100px;
  box-shadow: var(--shadow-light);
}

.stat__number {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  display: block;
}

.stat__label {
  font-size: 0.875rem;
  color: var(--text-color);
  margin-top: var(--spacing-xs);
}

.about__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature {
  background: var(--secondary-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212, 163, 115, 0.1), transparent);
  transition: left 0.5s;
}

.feature:hover::before {
  left: 100%;
}

.feature:hover {
  transform: translateY(-10px);
  background: var(--secondary-color);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-medium);
}

.feature__icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.feature__text {
  font-weight: var(--font-weight-semibold);
  font-size: 1.125rem;
  color: var(--text-color);
}

/* ===== SKILLS SECTION ===== */
.skills {
  padding: var(--spacing-xl) 0;
  background: var(--background-dark);
}

.skills__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.skill__card {
  background: var(--secondary-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.skill__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--link-hover-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.skill__card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.skill__card:hover::before {
  transform: scaleX(1);
}

.skill__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: block;
}

.skill__name {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--heading-color);
  margin: 0 0 var(--spacing-xs) 0;
}

.skill__level {
  display: inline-block;
  background: transparent;
  color: var(--text-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  font-weight: var(--font-weight-semibold);
}

/* ===== PROJECTS SECTION ===== */
.projects {
  padding: var(--spacing-xl) 0;
  background: white;
}

.projects__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.project__card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-light);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project__card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: var(--primary-color);
}

.project__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.project__name {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--heading-color);
  margin: 0;
  flex: 1;
}

.project__links {
  display: flex;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-sm);
}

.project__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-sm);
  background: var(--background-light);
  color: var(--text-color);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.project__link:hover {
  background: var(--primary-color);
  color: var(--secondary-color);
  transform: scale(1.1);
}

.project__description {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.project__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.project__tech {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.project__language,
.project__topic {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
}

.project__language {
  background: var(--primary-color);
  color: var(--secondary-color);
}

.project__topic {
  background: var(--background-light);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.project__stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.project__stars {
  font-size: 0.875rem;
  color: var(--text-color);
  font-weight: var(--font-weight-semibold);
}

.projects__cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.projects__cta .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ===== GITHUB SECTION ===== */
.github {
  padding: var(--spacing-xl) 0;
  background: var(--background-dark);
}

.github__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.github__profile {
  background: var(--secondary-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-light);
  margin-bottom: var(--spacing-xl);
}

.github__profile-info {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.github__avatar {
  flex-shrink: 0;
}

.github__avatar-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--primary-color);
  object-fit: cover;
}

.github__profile-details {
  flex: 1;
}

.github__username {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: var(--font-weight-bold);
  color: var(--heading-color);
  margin: 0 0 var(--spacing-sm) 0;
}

.github__bio {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.github__stats-summary {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.github__stat {
  color: var(--text-color);
  font-size: 0.9rem;
}

.github__stat strong {
  color: var(--primary-color);
  font-weight: var(--font-weight-bold);
}

.github__header {
  margin-bottom: var(--spacing-sm);
}

.github__actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.repos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.repo__card {
  background: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-light);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.repo__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
  border-color: var(--primary-color);
}

.repo__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.repo__name {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  text-decoration: none;
  margin: 0;
  flex: 1;
}

.repo__name:hover {
  text-decoration: underline;
}

.repo__featured {
  background: var(--primary-color);
  color: var(--secondary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.repo__description {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.repo__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.repo__language {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--text-color);
}

.repo__language-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.repo__stats {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.repo__stat {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--text-color);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.stat__item {
  background: var(--secondary-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-light);
  border: 1px solid var(--border-color);
}

.stat__number {
  display: block;
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.stat__label {
  color: var(--text-color);
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
}

.github__loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-color);
}

.github__error {
  text-align: center;
  padding: var(--spacing-xl);
  background: #fee;
  border: 1px solid #fcc;
  border-radius: var(--border-radius-lg);
  color: #c33;
}

.github__error .btn {
  margin-top: var(--spacing-md);
}

/* ===== CONTACT SECTION ===== */
.contact {
  background: var(--background-light);
}

.contact__container {
  display: grid;
  gap: var(--spacing-xl);
}

.contact__subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--heading-color);
}

.contact__text {
  margin-bottom: var(--spacing-xl);
  font-size: 1.1rem;
  line-height: 1.7;
}

.contact__details {
  display: grid;
  gap: var(--spacing-md);
}

.contact__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--secondary-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.contact__icon {
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(var(--primary-color-rgb), 0.1);
  transition: all 0.3s ease;
}

.contact__icon svg {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

.contact__item:hover .contact__icon {
  background: rgba(var(--primary-color-rgb), 0.2);
  transform: translateY(-2px);
}

.contact__item:hover .contact__icon svg {
  transform: scale(1.1);
}

.contact__label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-color);
  opacity: 0.7;
}

.contact__value {
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
}

.contact__value:hover {
  color: var(--link-hover-color);
}

/* ===== FORM STYLES ===== */
.form {
  background: var(--secondary-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form__input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--heading-color);
  color: var(--secondary-color);
  padding: var(--spacing-xxl) 0 var(--spacing-md);
}

.footer__container {
  display: grid;
  gap: var(--spacing-xl);
}

.footer__content {
  display: grid;
  gap: var(--spacing-xl);
}

.footer__title {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.footer__description {
  opacity: 0.8;
}

.footer__subtitle {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.footer__list {
  list-style: none;
  display: grid;
  gap: var(--spacing-xs);
}

.footer__link {
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.footer__link:hover {
  opacity: 1;
  color: var(--primary-color);
}

.footer__info {
  opacity: 0.8;
  margin-bottom: var(--spacing-xs);
}

.social__links {
  display: flex;
  gap: var(--spacing-md);
}

.social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary-color);
  border-radius: 50%;
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.social__link:hover {
  background: var(--link-hover-color);
  transform: translateY(-2px);
}

.social__link .social__icon {
  width: 12px !important;
  height: 12px !important;
  transition: transform 0.3s ease, color 0.3s ease;
}

.footer__bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copy {
  opacity: 0.6;
  font-size: 0.9rem;
}

/* ===== FLOATING RESUME DOWNLOAD BUTTON ===== */
.whatsapp-float {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-heavy);
  z-index: 1000;
  transition: all var(--transition-normal);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(1, 117, 194, 0.4);
}

.resume-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary-color);
  text-align: center;
  line-height: 1.1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(1, 117, 194, 0.7);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(1, 117, 194, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(1, 117, 194, 0);
  }
}

/* ===== RESPONSIVE DESIGN ===== */

/* Mobile First */
@media (max-width: 767px) {
  .hero__content {
    text-align: center;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__subtitle {
    font-size: 1.1rem;
  }

  .hero__buttons {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .about {
    padding: calc(var(--header-height) + var(--spacing-lg)) 0 var(--spacing-lg) 0;
  }

  .about__container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-lg);
  }

  .section__title {
    font-size: 2.5rem;
  }

  .about__subtitle {
    font-size: 1.25rem;
  }

  .about__description {
    font-size: 1.125rem;
  }

  .about__img {
    width: 250px;
    height: 250px;
  }

  .about__features {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .feature {
    padding: var(--spacing-lg);
  }

  .feature__icon {
    font-size: 2.5rem;
  }

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

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

  .project__card {
    min-width: unset;
  }

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

  .github__profile-info {
    flex-direction: column;
    text-align: center;
  }

  .github__avatar-img {
    width: 100px;
    height: 100px;
  }

  .github__stats-summary {
    justify-content: center;
  }

  .stats__grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }

  .contact__container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-lg);
  }

  .social__links {
    justify-content: center;
  }

  .project__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .project__links {
    margin-left: 0;
  }

  .project__footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .repo__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .repo__footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2rem;
  }

  .section__title {
    font-size: 1.5rem;
  }

  .about {
    padding: calc(var(--header-height) + var(--spacing-md)) 0 var(--spacing-md) 0;
  }

  .about__subtitle {
    font-size: 1.125rem;
  }

  .about__description {
    font-size: 1rem;
  }

  .about__img {
    width: 200px;
    height: 200px;
  }

  .about__features {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .feature {
    padding: var(--spacing-md);
  }

  .feature__icon {
    font-size: 2rem;
  }

  .feature__text {
    font-size: 0.875rem;
  }

  .projects__grid,
  .skills__grid,
  .repos__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .project__card,
  .skill__card,
  .repo__card {
    padding: var(--spacing-md);
  }

  .github__profile {
    padding: var(--spacing-md);
  }

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

  .btn {
    width: 100%;
    text-align: center;
  }

  .form {
    padding: var(--spacing-lg);
  }
}

/* Tablet */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }

  .hero__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }

  .hero__content {
    text-align: left;
  }

  .hero__img {
    height: 450px;
  }

  .about__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }

  .about__content {
    text-align: left;
  }

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

  .services__container {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__container {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }

  .footer__content {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    justify-content: center;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .nav__menu {
    display: block;
  }

  .nav__toggle {
    display: none;
  }

  .services__container {
    grid-template-columns: repeat(4, 1fr);
  }

  .testimonials__container {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__content {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
  }

  .gallery__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Large Desktop */
@media (min-width: 1200px) {
  .about__features {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== ANIMATIONS ===== */
@media (prefers-reduced-motion: no-preference) {

  .hero__content,
  .about__content,
  .service,
  .testimonial {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
  }

  .hero__content {
    animation-delay: 0.2s;
  }

  .service:nth-child(1) {
    animation-delay: 0.1s;
  }

  .service:nth-child(2) {
    animation-delay: 0.2s;
  }

  .service:nth-child(3) {
    animation-delay: 0.3s;
  }

  .service:nth-child(4) {
    animation-delay: 0.4s;
  }

  .testimonial:nth-child(1) {
    animation-delay: 0.1s;
  }

  .testimonial:nth-child(2) {
    animation-delay: 0.2s;
  }

  .testimonial:nth-child(3) {
    animation-delay: 0.3s;
  }
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Small Mobile */
@media (max-width: 600px) {
  .nav__logo .logo-img {
    height: 28px;
  }

  .nav__actions .btn {
    display: none;
  }

  .nav__actions {
    gap: var(--spacing-sm);
  }
}

/* ===== SUCCESS MESSAGE ===== */
.success-message {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-heavy);
  z-index: 10000;
  text-align: center;
  max-width: 400px;
  width: 90%;
  border: 2px solid var(--primary-color);
  animation: slideIn 0.3s ease-out;
}

.success-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.success-icon {
  font-size: 3rem;
  animation: bounce 0.6s ease-in-out;
}

.success-message p {
  margin: 0;
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--heading-color);
}

.success-message small {
  color: var(--text-color);
  font-size: 0.875rem;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translate(-50%, -60%);
  }

  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-10px);
  }

  60% {
    transform: translateY(-5px);
  }
}

/* ===== LOADING STATES ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== UTILITIES ===== */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 {
  margin-bottom: 0;
}

.mt-0 {
  margin-top: 0;
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

.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;
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== ACCESSIBILITY ===== */
.keyboard-navigation *:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 10000;
}

.skip-link:focus {
  top: 6px;
}

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

/* Focus styles for accessibility */
.form__input:focus,
.gallery__tab:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --shadow-light: 0 2px 6px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
}