:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #e7edf6;
  --text: #1d2a3a;
  --muted: #526174;
  --primary: #1463c3;
  --primary-dark: #0d4c96;
  --accent: #2c78d4;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-soft: 0 18px 48px rgba(25, 71, 128, 0.12);
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% -10%, rgba(86, 144, 216, 0.16), transparent 40%),
    radial-gradient(circle at 95% 0%, rgba(38, 104, 192, 0.14), transparent 36%),
    var(--bg);
  line-height: 1.55;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary-dark);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 85%, white 15%);
  border-bottom: 1px solid rgba(22, 49, 43, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-logo {
  width: 4.0rem;
  height: 4.0rem;
  flex: 0 0 auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.avv-logo-wrap {
  position: relative;
  width: 100%;
  height: 7rem;
  margin: 0 auto 0.55rem;
  overflow: visible;
}

.avv-logo {
  display: block;
  width: 5.5rem;
  height: 100%;
  margin: 0 auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: opacity 300ms ease, transform 400ms ease;
}

.avv-split-logo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

.avv-split-logo .move,
.avv-split-logo .float {
  transform-box: fill-box;
  transform-origin: center;
}

.avv-split-logo .move {
  transform: translate3d(0, 0, 0);
  transition: transform 1.35s cubic-bezier(0.25, 0.75, 0.25, 1);
  will-change: transform;
}

.hero-panel.avv-expanded .avv-logo {
  opacity: 0;
  transform: scale(0.94);
}

.hero-panel.avv-expanded .avv-split-logo {
  opacity: 1;
}

.hero-panel.avv-expanded .avv-split-logo .move-a {
  transform: translate3d(-135px, 0, 0);
}

.hero-panel.avv-expanded .avv-split-logo .move-v1 {
  transform: translate3d(0, 0, 0);
  transition-delay: 360ms;
}

.hero-panel.avv-expanded .avv-split-logo .move-v2 {
  transform: translate3d(135px, 0, 0);
  transition-delay: 720ms;
}

.hero-panel.avv-expanded .avv-split-logo .float {
  animation: avv-float 4.2s ease-in-out infinite;
}

.hero-panel.avv-expanded .avv-split-logo .move-a .float {
  animation-delay: 1.4s;
}

.hero-panel.avv-expanded .avv-split-logo .move-v1 .float {
  animation-delay: 1.76s;
}

.hero-panel.avv-expanded .avv-split-logo .move-v2 .float {
  animation-delay: 2.12s;
}

@keyframes avv-float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -6px, 0);
  }
}

.brand-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.brand-tagline {
  margin: 0.05rem 0 0 0rem;
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  gap: 1rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--text);
  background: rgba(20, 99, 195, 0.1);
}

.language-switch {
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
  margin-left: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.language-button {
  border: 0;
  padding: 0.35rem 0.2rem;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: inherit;
  font-weight: inherit;
  cursor: pointer;
}

.language-button:hover,
.language-button:focus-visible,
.language-button.is-active {
  color: var(--primary-dark);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.hero {
  position: relative;
  isolation: isolate;
  padding: 1.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
}

.hero-copy h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1.04;
  margin: 0.2rem 0 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.78rem;
  color: var(--primary-dark);
  font-weight: 800;
  margin: 0;
}

.lead {
  font-size: clamp(1rem, 1.9vw, 1.22rem);
  color: var(--muted);
  max-width: 60ch;
  margin-top: 1.0rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 3.0rem 0 1rem;
}

.hero-actions .btn {
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  padding: 0.82rem 1.2rem;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-dark);
}

.btn-secondary {
  background: rgba(20, 99, 195, 0.1);
  color: var(--primary-dark);
}

.trust-list {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  color: var(--muted);
}

.trust-list li {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(22, 49, 43, 0.18);
  background: rgba(255, 255, 255, 0.7);
}

.hero-panel {
  justify-self: center;
  width: min(100%, 32rem);
  background: var(--surface);
  border: 1px solid rgba(22, 49, 43, 0.12);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-soft);
}

.hero-panel h2 {
  margin: 0 0 0.75rem;
  font-family: "Fraunces", Georgia, serif;
}

.hero-panel ol {
  margin: 0;
  padding: 0;
  list-style: none;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-0.4rem);
  transition: max-height 650ms ease, opacity 300ms ease, transform 450ms ease;
}

.hero-panel.avv-expanded ol {
  max-height: 12rem;
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0ms, 150ms, 150ms;
}

.avv-list li {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.55rem;
  align-items: start;
}

.avv-list li + li {
  margin-top: 0.35rem;
}

.avv-letter {
  color: var(--primary-dark);
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
}

.avv-meaning {
  display: none;
  color: var(--primary-dark);
}

.hero-panel.avv-expanded .avv-meaning {
  display: inline;
}

.avv-toggle {
  margin-top: 0.9rem;
  padding: 0.55rem 0.85rem;
  font-size: 0.86rem;
}

.panel-note {
  margin-top: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(245, 248, 253, 0.98) 0%, rgba(245, 248, 253, 0.92) 42%, rgba(245, 248, 253, 0.46) 70%, rgba(245, 248, 253, 0.2) 100%),
    url("../assets/images/hero/Background.png") center bottom / cover no-repeat;
  border-bottom: 1px solid rgba(20, 99, 195, 0.1);
}

.section {
  padding: 3.5rem 0;
}

.section h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  margin: 0.4rem 0 1.6rem;
}

.section-alt {
  background: color-mix(in srgb, var(--surface-strong) 42%, transparent 58%);
}

.cards,
.portfolio-grid {
  display: grid;
  gap: 1rem;
}

.card,
.project-card {
  background: var(--surface);
  padding: 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(22, 49, 43, 0.1);
}

.card h3,
.project-card h3 {
  margin-top: 0;
}

.project-tag {
  color: var(--accent);
  font-weight: 800;
  margin: 0;
}

.text-link {
  color: var(--primary-dark);
  font-weight: 800;
  text-decoration-thickness: 2px;
}

.about-grid {
  display: grid;
  gap: 1.25rem;
  align-items: start;
}

.about-photo {
  position: relative;
  width: min(100%, 19rem);
  aspect-ratio: 1;
  margin: 1.5rem auto 0;
  overflow: hidden;
  border-radius: 50% 46% 53% 48% / 48% 52% 47% 53%;
  background: var(--surface);
  box-shadow: 0 1rem 2.5rem rgba(20, 63, 112, 0.16);
}

.about-photo::after {
  position: absolute;
  inset: -0.35rem;
  border: 0.8rem solid rgba(245, 248, 253, 0.62);
  border-radius: inherit;
  content: "";
  filter: blur(0.55rem);
  pointer-events: none;
}

.about-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  transform: scale(1.04);
}

.section-contact {
  background: linear-gradient(180deg, rgba(20, 99, 195, 0.09), rgba(95, 150, 220, 0.08));
}

.contact-wrap {
  display: grid;
  gap: 1.2rem;
}

.contact-form {
  display: grid;
  gap: 0.6rem;
  background: var(--surface);
  border: 1px solid rgba(22, 49, 43, 0.12);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.contact-form label {
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(22, 49, 43, 0.26);
  border-radius: 10px;
  padding: 0.75rem;
  font: inherit;
}

.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  outline: 3px solid rgba(20, 99, 195, 0.3);
  border-color: var(--primary);
}

.form-status {
  margin: 0.25rem 0 0;
  color: var(--primary-dark);
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid rgba(22, 49, 43, 0.1);
  padding: 1rem 0 2.2rem;
}

.footer-wrap {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-wrap nav {
  display: flex;
  gap: 1rem;
}

.footer-wrap a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.footer-link {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--primary-dark);
  text-decoration: underline;
}

.legal-dialog {
  width: min(680px, calc(100% - 2rem));
  max-height: min(780px, calc(100% - 2rem));
  padding: 0;
  border: 0;
  border-radius: 14px;
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 24px 80px rgba(22, 49, 43, 0.28);
}

.legal-dialog::backdrop {
  background: rgba(22, 49, 43, 0.54);
}

.legal-dialog-content {
  overflow-y: auto;
  max-height: min(780px, calc(100vh - 2rem));
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.legal-dialog-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.legal-dialog h2 {
  margin: 0;
}

.legal-dialog h3 {
  margin: 1.4rem 0 0.45rem;
  font-size: 1rem;
}

.legal-dialog p,
.legal-dialog address {
  margin: 0.4rem 0 0;
  line-height: 1.65;
}

.legal-dialog address {
  font-style: normal;
}

.legal-dialog a {
  color: var(--primary-dark);
  overflow-wrap: anywhere;
}

.dialog-close {
  flex: 0 0 auto;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(22, 49, 43, 0.18);
  border-radius: 50%;
  color: var(--text);
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.dialog-close:hover,
.dialog-close:focus-visible {
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.legal-note {
  margin-top: 1.5rem !important;
  padding-top: 1rem;
  border-top: 1px solid rgba(22, 49, 43, 0.14);
  color: var(--muted);
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 650ms ease, transform 650ms ease;
}

@media (min-width: 760px) {
  .hero {
    min-height: 300px;
    display: grid;
    align-items: center;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .cards,
  .portfolio-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-grid,
  .contact-wrap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-photo {
    left: -6rem;
  }

  .hero-bg {
    background-position: center bottom;
  }
}

@media (max-width: 759px) {
  .nav-wrap {
    align-items: flex-start;
    padding: 0.75rem 0;
  }

  .main-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.25rem 0.4rem;
  }

  .main-nav a {
    padding: 0.35rem 0.4rem;
    font-size: 0.85rem;
  }

  .language-switch {
    margin-left: 0;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(245, 248, 253, 0.96) 0%, rgba(245, 248, 253, 0.82) 50%, rgba(245, 248, 253, 0.52) 100%),
      url("../assets/images/hero/Background.png") 58% bottom / auto 100% no-repeat;
  }
}

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

  .btn,
  .reveal,
  .reveal.is-visible {
    transition: none;
    transform: none;
  }

  .avv-logo,
  .avv-split-logo,
  .avv-split-logo .move,
  .avv-split-logo .float {
    transition: none;
    animation: none;
  }

}