:root {
  --bg: #0a0a0f;
  --emerald: #34d399;
  --emerald-light: #6ee7b7;
  --white-05: rgba(255, 255, 255, 0.05);
  --white-07: rgba(255, 255, 255, 0.07);
  --white-10: rgba(255, 255, 255, 0.1);
  --white-15: rgba(255, 255, 255, 0.15);
  --white-20: rgba(255, 255, 255, 0.2);
  --white-25: rgba(255, 255, 255, 0.25);
  --white-30: rgba(255, 255, 255, 0.3);
  --white-40: rgba(255, 255, 255, 0.4);
  --white-60: rgba(255, 255, 255, 0.6);
  --white-70: rgba(255, 255, 255, 0.7);
  --white-80: rgba(255, 255, 255, 0.8);
  --white-90: rgba(255, 255, 255, 0.9);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--white-90);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.bg-decoration {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% -10%, rgba(16, 185, 129, 0.15), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(99, 102, 241, 0.12), transparent 35%);
}

.container {
  margin-inline: auto;
  max-width: 64rem;
  padding-inline: 1.5rem;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 2rem;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 72rem;
    padding-inline: 2.5rem;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 80rem;
  }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-block: 1.25rem;
}

.floating-nav-wrap {
  margin-inline: auto;
  max-width: 64rem;
  padding-inline: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.floating-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--white-10);
  background: rgba(18, 18, 26, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.375rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

@media (min-width: 640px) {
  .floating-nav {
    display: flex;
  }
}

.nav-pill-item {
  display: flex;
  align-items: center;
  border-radius: 9999px;
  padding: 0.5rem 1.1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--white-60);
  transition: background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.nav-pill-item:hover {
  color: #fff;
}

.nav-pill-item.active {
  background: #fff;
  color: var(--bg);
}

.nav-home {
  padding: 0.5rem;
  color: var(--white-70);
}

.nav-home svg {
  height: 1rem;
  width: 1rem;
}

.menu-button {
  position: fixed;
  top: 1.35rem;
  right: 1.5rem;
  z-index: 51;
  display: flex;
  height: 2.25rem;
  width: 2.25rem;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: 1px solid var(--white-15);
  background: rgba(18, 18, 26, 0.8);
  backdrop-filter: blur(12px);
  color: var(--white-80);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.menu-button:hover {
  border-color: var(--white-30);
}

@media (min-width: 640px) {
  .menu-button {
    display: none;
  }
}

.menu-icon {
  position: relative;
  display: block;
  height: 0.875rem;
  width: 1rem;
}

.menu-icon span {
  position: absolute;
  left: 0;
  width: 1rem;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease;
}

.menu-icon span:nth-child(1) { top: 0; }
.menu-icon span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-icon span:nth-child(3) { top: 100%; transform: translateY(-1px); }

.menu-button.open .menu-icon span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.menu-button.open .menu-icon span:nth-child(2) {
  opacity: 0;
}
.menu-button.open .menu-icon span:nth-child(3) {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  top: 4.5rem;
  left: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-radius: 1rem;
  border: 1px solid var(--white-10);
  background: rgba(10, 10, 15, 0.95);
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--white-70);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.nav-mobile[hidden] {
  display: none;
}

@media (min-width: 640px) {
  .nav-mobile {
    display: none !important;
  }
}

.nav-mobile a {
  border-radius: 0.5rem;
  padding: 0.625rem 0.5rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-mobile a:hover {
  background: var(--white-05);
  color: #fff;
}

/* Hero */
.hero {
  padding-block: 3rem;
}

@media (min-width: 640px) {
  .hero { padding-block: 4rem; }
}
@media (min-width: 1024px) {
  .hero { padding-block: 5rem; }
}

.hero-split {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-split {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2rem;
  }
}

.eyebrow {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--emerald);
}

.hero-title {
  margin: 0.5rem 0 0;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

@media (min-width: 640px) { .hero-title { font-size: 3rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 3.5rem; } }
@media (min-width: 1536px) { .hero-title { font-size: 4rem; } }

.hero-tagline {
  margin: 0.75rem 0 0;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--white-90);
}

@media (min-width: 640px) { .hero-tagline { font-size: 1.625rem; } }
@media (min-width: 1024px) { .hero-tagline { font-size: 1.875rem; } }

.cursive {
  font-style: italic;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--emerald);
}

.hero-text {
  margin: 1.25rem 0 0;
  max-width: 34rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--white-70);
}

@media (min-width: 1024px) { .hero-text { font-size: 1.0625rem; } }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--white-10);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hero-stat strong {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
}

.hero-stat span {
  font-size: 0.8125rem;
  color: var(--white-60);
}

/* Hero photo */
.hero-photo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 20rem;
}

.photo-rings {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.ring {
  position: absolute;
  border-radius: 9999px;
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.ring-1 { width: 70%; height: 70%; }
.ring-2 { width: 88%; height: 88%; border-color: rgba(52, 211, 153, 0.15); }
.ring-3 { width: 100%; height: 100%; border-color: rgba(99, 102, 241, 0.12); }

.hero-photo-img {
  position: relative;
  z-index: 1;
  width: min(80%, 20rem);
  height: auto;
  -webkit-mask-image: linear-gradient(to bottom, black 78%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 78%, transparent 100%);
  filter: drop-shadow(0 25px 35px rgba(0, 0, 0, 0.5));
}

@media (min-width: 1024px) {
  .hero-photo-img {
    width: min(85%, 23rem);
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--emerald);
  color: var(--bg);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background-color: var(--emerald-light);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid var(--white-20);
}

.btn-outline:hover {
  border-color: var(--white-40);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-left: 0.625rem;
}

.btn-arrow {
  display: inline-block;
  margin-left: 0.375rem;
  transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(3px);
}

.btn-play {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
}

.play-circle {
  display: flex;
  height: 2.75rem;
  width: 2.75rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: #fff;
  color: var(--bg);
  transition: transform 0.2s ease;
}

.play-circle svg {
  height: 1rem;
  width: 1rem;
  margin-left: 2px;
}

.btn-play:hover .play-circle {
  transform: scale(1.08);
}

.play-label {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
}

.play-label small {
  font-weight: 400;
  color: var(--white-60);
}

/* Sections */
.section {
  padding-block: 3.5rem;
}

@media (min-width: 640px) { .section { padding-block: 4rem; } }
@media (min-width: 1024px) { .section { padding-block: 5rem; } }

.section-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
}

@media (min-width: 1024px) { .section-title { font-size: 1.875rem; } }

.section-subtitle {
  margin: 0.5rem 0 0;
  color: var(--white-60);
}

.section-subtitle-narrow {
  max-width: 36rem;
}

/* Grid + cards */
.grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

.projects-grid,
.certificates-grid {
  grid-template-columns: 1fr;
}

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

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

.card {
  position: relative;
  border-radius: 1rem;
  border: 1px solid var(--white-10);
  background: var(--white-05);
  padding: 1.5rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.card:hover {
  border-color: rgba(52, 211, 153, 0.4);
  background: var(--white-07);
}

.tag {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--emerald);
}

.card-title {
  margin: 0.25rem 0 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: #fff;
}

.card-text {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--white-70);
}

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.pill {
  border-radius: 9999px;
  border: 1px solid var(--white-15);
  background: var(--white-05);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--white-80);
}

.pill-sm {
  border: none;
  background: var(--white-10);
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  color: var(--white-70);
}

.card-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.link-accent {
  color: var(--emerald);
}

.link-accent:hover {
  color: var(--emerald-light);
}

.link-muted {
  color: var(--white-40);
}

.link-muted:hover {
  color: var(--white-80);
}

.project-card[hidden] {
  display: none;
}

.show-more-wrap {
  margin-top: 2rem;
  text-align: center;
}

.show-more-wrap[hidden] {
  display: none;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.cert-card {
  display: block;
}

.cert-card .link-accent {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Contact */
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.icon-badge,
.icon-badge-img {
  height: 1.5rem;
  width: 1.5rem;
  flex-shrink: 0;
  border-radius: 9999px;
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
}

.icon-email { background-color: #ef4444; -webkit-mask-image: url("icons/email.png"); mask-image: url("icons/email.png"); }
.icon-whatsapp { background-color: #25d366; -webkit-mask-image: url("icons/whatsapp.png"); mask-image: url("icons/whatsapp.png"); }
.icon-linkedin { background-color: #0a66c2; -webkit-mask-image: url("icons/linkedin.png"); mask-image: url("icons/linkedin.png"); }

/* Footer */
.footer {
  border-top: 1px solid var(--white-10);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding-block: 2.5rem;
  font-size: 0.875rem;
  color: var(--white-40);
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a:hover {
  color: var(--white-70);
}

.footer-domain {
  color: var(--white-25);
}