/* ============================================
   Design System & CSS Custom Properties
   ============================================ */

:root {
  /* Color Palette - Official Nu Purple (from nu.co official CSS) */
  --nubank-purple: #8D0DE3;
  --nubank-purple-light: #a855f7;
  --nubank-purple-dark: #7F36AB;
  --purple-gradient-start: #a855f7;
  --purple-gradient-mid: #9333ea;
  --purple-gradient-end: #8D0DE3;
  --deep-indigo: #7F36AB;
  --bright-purple: #a855f7;
  --soft-lavender: #f3e5ff;
  --white: #ffffff;
  --off-white: #fafafa;
  --charcoal: #2d3748;
  --gray-light: #e2e8f0;
  --gray-medium: #cbd5e0;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Font Sizes */
  --font-size-base: 16px;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Line Heights */
  --line-height-body: 1.6;
  --line-height-heading: 1.2;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Container */
  --container-max-width: 1200px;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

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

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  color: var(--charcoal);
  background-color: var(--off-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
  color: var(--deep-indigo);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

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

a {
  color: var(--bright-purple);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--deep-indigo);
}

a:focus-visible {
  outline: 2px solid var(--bright-purple);
  outline-offset: 2px;
  border-radius: 2px;
}

strong {
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.nav.hidden {
  transform: translateY(-100%);
}

.nav__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--white);
  position: relative;
  padding: var(--spacing-sm) var(--spacing-lg);
  z-index: 1;
  overflow: visible;
  transition: color var(--transition-base);
}

.nav__logo::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--nubank-purple) 0%, var(--bright-purple) 100%);
  border-radius: 12px;
  transform: translate(-50%, -50%);
  z-index: -1;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  box-shadow: 0 2px 8px rgba(141, 13, 227, 0.2);
}

.nav__logo::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50px;
  height: 50px;
  background: radial-gradient(circle at top right, var(--bright-purple) 0%, transparent 70%);
  opacity: 0.4;
  border-radius: 12px;
  transform: translate(-50%, -50%);
  z-index: -1;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.nav__logo:hover {
  color: var(--nubank-purple);
}

.nav__logo:hover::before {
  transform: translate(-50%, -50%) scale(1.05);
  background: var(--white);
  box-shadow: 0 4px 12px rgba(141, 13, 227, 0.3);
}

.nav__logo:hover::after {
  opacity: 0;
}

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

.nav__link {
  color: var(--charcoal);
  font-weight: var(--font-weight-regular);
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--bright-purple);
  transition: width var(--transition-base);
}

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

.nav__link:hover::after {
  width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg,
      var(--purple-gradient-start) 0%,
      var(--purple-gradient-mid) 50%,
      var(--purple-gradient-end) 100%);
  color: var(--white);
  padding: var(--spacing-4xl) var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.4) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.3) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.35) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.3) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.4) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.35) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.3) 2px, transparent 2px),
    radial-gradient(circle, rgba(255, 255, 255, 0.4) 2px, transparent 2px);
  background-size:
    60px 60px,
    80px 80px,
    100px 100px,
    70px 70px,
    90px 90px,
    110px 110px,
    75px 75px,
    95px 95px;
  background-position:
    10% 20%,
    80% 30%,
    25% 70%,
    70% 80%,
    40% 40%,
    90% 65%,
    50% 15%,
    15% 85%;
  animation: floatParticles 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, transparent 48%, rgba(255, 255, 255, 0.08) 49%, rgba(255, 255, 255, 0.08) 51%, transparent 52%),
    linear-gradient(40deg, transparent 48%, rgba(255, 255, 255, 0.06) 49%, rgba(255, 255, 255, 0.06) 51%, transparent 52%),
    linear-gradient(85deg, transparent 48%, rgba(255, 255, 255, 0.05) 49%, rgba(255, 255, 255, 0.05) 51%, transparent 52%);
  background-size:
    300px 300px,
    400px 400px,
    350px 350px;
  background-position:
    20% 30%,
    75% 70%,
    45% 50%;
  animation: connectLines 15s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes gradientShift {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.6;
  }
  33% {
    transform: translate(-5%, 5%) scale(1.1);
    opacity: 0.7;
  }
  66% {
    transform: translate(5%, -5%) scale(0.95);
    opacity: 0.5;
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes floatParticles {
  0%, 100% {
    background-position:
      10% 20%,
      80% 30%,
      25% 70%,
      70% 80%,
      40% 40%,
      90% 65%,
      50% 15%,
      15% 85%;
    opacity: 1;
  }
  33% {
    background-position:
      15% 25%,
      75% 35%,
      30% 65%,
      65% 75%,
      45% 45%,
      85% 60%,
      55% 20%,
      20% 80%;
    opacity: 0.8;
  }
  66% {
    background-position:
      12% 15%,
      82% 25%,
      22% 75%,
      72% 85%,
      38% 35%,
      92% 70%,
      48% 10%,
      18% 90%;
    opacity: 0.9;
  }
}

@keyframes connectLines {
  0%, 100% {
    background-position:
      20% 30%,
      75% 70%,
      45% 50%;
    opacity: 0.7;
  }
  50% {
    background-position:
      25% 35%,
      70% 65%,
      50% 45%;
    opacity: 1;
  }
}

.hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.hero__content {
  max-width: 600px;
  position: relative;
  z-index: 1;
}

.hero__greeting {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-light);
  margin-bottom: var(--spacing-md);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero__name {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--white);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3), 0 0 40px rgba(255, 255, 255, 0.1);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.4s forwards;
  letter-spacing: -0.02em;
}

.hero__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-regular);
  margin-bottom: var(--spacing-lg);
  color: var(--white);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.hero__tagline {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-light);
  margin-bottom: var(--spacing-2xl);
  opacity: 0;
  line-height: 1.5;
  animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.hero__links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 1s forwards;
}

.hero__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border-radius: 8px;
  font-weight: var(--font-weight-semibold);
  transition: background-color var(--transition-base), transform var(--transition-base);
  backdrop-filter: blur(10px);
}

.hero__link:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  color: var(--white);
}

.hero__image {
  display: none;
  position: relative;
  z-index: 1;
}

.hero__image-wrapper {
  position: relative;
  width: 400px;
  height: 400px;
  margin: 0 auto;
  transform: rotate(-3deg);
  transition: transform 0.4s ease;
}

.hero__image-wrapper:hover {
  transform: rotate(0deg);
}

.hero__image-wrapper::before {
  content: '';
  position: absolute;
  inset: -12px;
  background: linear-gradient(135deg,
    var(--nubank-purple-light),
    var(--bright-purple),
    var(--nubank-purple),
    var(--purple-gradient-mid));
  background-size: 300% 300%;
  border-radius: 30px;
  animation: gradientRotate 8s ease-in-out infinite, pulse 3s ease-in-out infinite;
  filter: blur(8px);
}

.hero__image-wrapper::after {
  content: '';
  position: absolute;
  inset: -4px;
  background:
    linear-gradient(135deg,
      rgba(168, 85, 247, 0.8),
      rgba(147, 51, 234, 0.6),
      rgba(138, 5, 190, 0.8));
  background-size: 200% 200%;
  border-radius: 30px;
  animation: gradientRotate 6s ease-in-out infinite reverse;
}

.hero__caption {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Marker Felt', 'Comic Sans MS', cursive;
  font-size: 22px;
  color: #2d2d2d;
  white-space: nowrap;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  animation: fadeIn 0.8s ease-out 1.6s forwards;
}

.hero__caption .bullet {
  font-size: 16px;
  vertical-align: middle;
}

.hero__photo {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 35% center;
  border-radius: 4px;
  border: 16px solid #fafaf8;
  border-bottom-width: 70px;
  box-shadow:
    0 25px 70px rgba(138, 5, 190, 0.4),
    0 10px 30px rgba(0, 0, 0, 0.3),
    0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 1;
  opacity: 0;
  animation: fadeInScale 1s ease-out 1.2s forwards;
}

@keyframes gradientRotate {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============================================
   Section Base Styles
   ============================================ */

.section {
  padding: var(--spacing-4xl) var(--spacing-xl);
}

.section--white {
  background-color: var(--white);
}

.section--off-white {
  background-color: var(--off-white);
}

/* Visual progression for each section - gradually more purple */
#about {
  background: linear-gradient(180deg, #ffffff 0%, #faf8fc 100%);
}

#skills {
  background: linear-gradient(180deg, #f9f7fb 0%, #f3f0f9 100%);
}

#projects {
  background: linear-gradient(180deg, #f2eff7 0%, #ebe6f5 100%);
}

#media {
  background: linear-gradient(180deg, #eae5f4 0%, #e3dcf2 100%);
}

#links {
  background: linear-gradient(180deg, #e2dbf1 0%, #dad1ef 100%);
}

.section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
}

.section__header::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--nubank-purple), var(--purple-gradient-start));
  margin: var(--spacing-lg) auto 0;
  border-radius: 2px;
}

.section__title {
  font-size: var(--font-size-3xl);
  background: linear-gradient(135deg,
    var(--deep-indigo) 0%,
    var(--nubank-purple) 40%,
    var(--bright-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-weight-bold);
  position: relative;
  display: inline-block;
}

.section__title::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg,
    var(--nubank-purple-light) 0%,
    var(--bright-purple) 50%,
    var(--nubank-purple) 100%);
  opacity: 0.1;
  filter: blur(20px);
  z-index: -1;
}

.section__subtitle {
  font-size: var(--font-size-xl);
  color: var(--charcoal);
  font-weight: var(--font-weight-light);
  max-width: 700px;
  margin: 0 auto;
}

/* Fade-in animation for sections */
.section--animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section--animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   About Section
   ============================================ */

.about__content {
  max-width: 800px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
  line-height: 1.8;
  position: relative;
}

.about__content::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -100px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(138, 5, 190, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
}

.about__content::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -120px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(160, 32, 240, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
}

.about__content p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Media Section with Photo Background
   ============================================ */

.section--media {
  position: relative;
  overflow: hidden;
}

.section--media::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('/images/qcon-ai-1.jpeg');
  background-size: cover;
  background-position: center;
  opacity: 0.05;
  pointer-events: none;
  mask-image: linear-gradient(to left, black 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to left, black 0%, transparent 100%);
}

.section--media .section__container {
  position: relative;
  z-index: 1;
}

/* ============================================
   Experience Section
   ============================================ */

.experience__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.experience__item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--gray-light);
}

.experience__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.experience__period {
  font-weight: var(--font-weight-semibold);
  color: var(--bright-purple);
}

.experience__company {
  font-size: var(--font-size-sm);
  color: var(--charcoal);
  opacity: 0.8;
  margin-top: var(--spacing-xs);
}

.experience__details h3 {
  margin-bottom: var(--spacing-sm);
}

.experience__description {
  color: var(--charcoal);
  margin-bottom: var(--spacing-md);
}

.experience__highlights {
  list-style: none;
  padding-left: 0;
}

.experience__highlights li {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.experience__highlights li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--bright-purple);
  font-weight: var(--font-weight-bold);
}

/* ============================================
   Skills Section
   ============================================ */

.skills__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.skill-card {
  padding: var(--spacing-xl);
  background-color: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--nubank-purple),
    var(--bright-purple),
    var(--nubank-purple-light),
    var(--bright-purple),
    var(--nubank-purple));
  background-size: 200% 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
  animation: gradientSlide 3s linear infinite;
}

@keyframes gradientSlide {
  to {
    background-position: 200% 0;
  }
}

.skill-card:hover::before {
  animation-play-state: paused;
}

.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.skill-card:hover::before {
  transform: scaleX(1);
}

.skill-card__title {
  font-size: var(--font-size-xl);
  color: var(--deep-indigo);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.skill-card__icon {
  width: 24px;
  height: 24px;
  color: var(--bright-purple);
}

.skill-card__list {
  list-style: none;
}

.skill-card__list li {
  padding: var(--spacing-sm) 0;
  color: var(--charcoal);
}

/* ============================================
   Projects Section
   ============================================ */

.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.media__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.project-card {
  background-color: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(168, 85, 247, 0.08) 0%, transparent 60%),
    radial-gradient(circle at bottom left, rgba(147, 51, 234, 0.06) 0%, transparent 60%),
    linear-gradient(135deg, rgba(138, 5, 190, 0.03) 0%, rgba(192, 38, 211, 0.04) 100%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px -5px rgba(138, 5, 190, 0.2);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card__header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--gray-light);
  position: relative;
}

.project-card__title {
  font-size: var(--font-size-xl);
  color: var(--deep-indigo);
  margin-bottom: var(--spacing-sm);
}

.project-card__meta {
  font-size: var(--font-size-sm);
  color: var(--charcoal);
  opacity: 0.7;
}

.project-card__body {
  padding: var(--spacing-xl);
  flex-grow: 1;
}

.project-card__description {
  color: var(--charcoal);
  margin-bottom: var(--spacing-lg);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.project-card__tag {
  font-size: 0.875rem;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--soft-lavender);
  color: var(--deep-indigo);
  border-radius: 16px;
  font-weight: var(--font-weight-semibold);
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--bright-purple);
  font-weight: var(--font-weight-semibold);
  position: relative;
  transition: gap var(--transition-base);
}

.project-card__link:hover {
  gap: var(--spacing-md);
}

.project-card__link::after {
  content: '→';
  transition: transform var(--transition-base);
}

.project-card__link:hover::after {
  transform: translateX(4px);
}

/* ============================================
   Links Section
   ============================================ */

.links__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.link-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
    radial-gradient(circle at bottom right, rgba(147, 51, 234, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, rgba(138, 5, 190, 0.05) 0%, rgba(192, 38, 211, 0.07) 100%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.link-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 20px 50px -5px rgba(138, 5, 190, 0.25),
    0 10px 30px -5px rgba(147, 51, 234, 0.15);
}

.link-card:hover::before {
  opacity: 1;
}

.link-card__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg,
    var(--nubank-purple-light),
    var(--bright-purple),
    var(--nubank-purple));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: var(--font-weight-bold);
  transition: transform var(--transition-base);
  animation: iconGradientShift 4s ease-in-out infinite;
}

@keyframes iconGradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.link-card:hover .link-card__icon {
  transform: scale(1.1);
}

.link-card__title {
  font-size: var(--font-size-xl);
  color: var(--deep-indigo);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
}

.link-card__description {
  font-size: var(--font-size-base);
  color: var(--charcoal);
  opacity: 0.8;
  line-height: 1.5;
}

.link-card--highlight {
  background:
    linear-gradient(135deg,
      rgba(168, 85, 247, 0.1),
      rgba(147, 51, 234, 0.08),
      rgba(192, 38, 211, 0.1));
  background-size: 200% 200%;
  border: 2px solid;
  border-image: linear-gradient(135deg,
    var(--nubank-purple-light),
    var(--bright-purple),
    var(--nubank-purple)) 1;
  animation: highlightShift 5s ease-in-out infinite;
}

.link-card--highlight:hover {
  background:
    linear-gradient(135deg,
      rgba(168, 85, 247, 0.15),
      rgba(147, 51, 234, 0.12),
      rgba(192, 38, 211, 0.15));
  border-width: 2px;
  animation-play-state: paused;
}

@keyframes highlightShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
  background:
    linear-gradient(135deg,
      var(--nubank-purple-dark) 0%,
      var(--nubank-purple) 40%,
      var(--purple-gradient-mid) 70%,
      var(--nubank-purple-light) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(192, 38, 211, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(147, 51, 234, 0.3) 0%, transparent 50%);
  animation: contactGradientShift 12s ease-in-out infinite alternate;
  pointer-events: none;
}

.contact::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150%;
  height: 150%;
  background:
    repeating-conic-gradient(from 0deg at 50% 50%,
      rgba(255, 255, 255, 0.02) 0deg 10deg,
      transparent 10deg 20deg);
  transform: translate(-50%, -50%);
  animation: shimmer 20s linear infinite;
  pointer-events: none;
}

@keyframes contactGradientShift {
  0% {
    transform: scale(1) translate(0, 0);
    opacity: 0.6;
  }
  100% {
    transform: scale(1.1) translate(3%, -3%);
    opacity: 0.8;
  }
}

@keyframes shimmer {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.contact .section__title,
.contact .section__subtitle {
  color: var(--white);
  background: none;
  -webkit-text-fill-color: var(--white);
}

.contact .section__header::after {
  background: rgba(255, 255, 255, 0.4);
}

.contact__content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.contact__text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  opacity: 0.95;
}

.contact__links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border-radius: 8px;
  font-weight: var(--font-weight-semibold);
  transition: background-color var(--transition-base), transform var(--transition-base);
  backdrop-filter: blur(10px);
}

.contact__link:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  color: var(--white);
}

.contact__location {
  font-size: var(--font-size-base);
  opacity: 0.8;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background-color: var(--deep-indigo);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-xl);
  text-align: center;
}

.footer__content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  opacity: 0.8;
}

.footer__text {
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.footer__tech {
  font-size: 0.75rem;
  opacity: 0.6;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet: 768px+ */
@media (min-width: 768px) {
  :root {
    --font-size-base: 18px;
  }

  h1 {
    font-size: var(--font-size-5xl);
  }

  .hero__name {
    font-size: 4rem;
  }
}

/* Mobile adjustments */
@media (max-width: 767px) {
  .nav__menu {
    gap: var(--spacing-sm);
  }

  .nav__link {
    font-size: 0.8125rem;
    padding: var(--spacing-xs) 0;
  }

  .hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .hero__name {
    font-size: var(--font-size-4xl);
  }

  .hero__title {
    font-size: var(--font-size-xl);
  }

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

  .section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .section__title {
    font-size: var(--font-size-2xl);
  }

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

  .experience__period {
    display: block;
  }

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

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

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

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

/* Tablet adjustments for grids */
@media (min-width: 768px) and (max-width: 1023px) {
  .media__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
  .hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-4xl);
  }

  .hero__image {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* Large Desktop: 1280px+ */
@media (min-width: 1280px) {
  .section {
    padding: var(--spacing-4xl) var(--spacing-2xl);
  }
}

/* ============================================
   Staggered Animations for Cards
   ============================================ */

.skill-card,
.project-card,
.link-card {
  animation: fadeInUp 0.6s ease-out forwards;
  opacity: 0;
}

.skill-card:nth-child(1),
.project-card:nth-child(1),
.link-card:nth-child(1) {
  animation-delay: 0.1s;
}

.skill-card:nth-child(2),
.project-card:nth-child(2),
.link-card:nth-child(2) {
  animation-delay: 0.2s;
}

.skill-card:nth-child(3),
.project-card:nth-child(3),
.link-card:nth-child(3) {
  animation-delay: 0.3s;
}

.skill-card:nth-child(4),
.project-card:nth-child(4),
.link-card:nth-child(4) {
  animation-delay: 0.4s;
}

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

/* ============================================
   Additional Visual Enhancements
   ============================================ */

/* Gradient on skill card icons */
.skill-card__icon {
  background: linear-gradient(135deg, var(--nubank-purple), var(--purple-gradient-start));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Enhanced tag styling */
.project-card__tag {
  background: linear-gradient(135deg, rgba(138, 5, 190, 0.1), rgba(160, 32, 240, 0.1));
  border: 1px solid rgba(138, 5, 190, 0.2);
  transition: all var(--transition-base);
}

.project-card__tag:hover {
  background: linear-gradient(135deg, rgba(138, 5, 190, 0.15), rgba(160, 32, 240, 0.15));
  border-color: rgba(138, 5, 190, 0.3);
  transform: translateY(-2px);
}

/* Smooth page transitions */
body {
  animation: fadeIn 0.5s ease-out;
}

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

/* Section background patterns for depth */
.section--off-white {
  background-image:
    radial-gradient(circle at 20% 50%, rgba(138, 5, 190, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(160, 32, 240, 0.02) 0%, transparent 50%);
}

/* Enhanced About section links */
.about__content a {
  color: var(--nubank-purple);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-base);
  font-weight: var(--font-weight-semibold);
}

.about__content a:hover {
  border-bottom-color: var(--nubank-purple);
}