/* Palette seed: ПОРТАФІНО → hue 100 */
:root {
  --accent-hue: 100;
  --accent-two-hue: 165;
  --bg-hue: 320;
  --accent: hsl(100, 81%, 59%);
  --accent-two: hsl(165, 78%, 52%);
  --bg: hsl(320, 32%, 6%);
  --text: hsl(320, 20%, 96%);
  --panel: color-mix(in srgb, var(--bg) 72%, hsl(320, 22%, 18%));
  --muted: color-mix(in srgb, var(--text) 62%, transparent);
  --line: color-mix(in srgb, var(--text) 14%, transparent);
  --accent-mix: color-mix(in srgb, var(--accent) 20%, transparent);
  --accent-two-mix: color-mix(in srgb, var(--accent-two) 18%, transparent);
  --gradient: linear-gradient(135deg, var(--accent), var(--accent-two));
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --header-h: 4.25rem;
  --max-w: 72rem;
  --font: "Manrope", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body.grid {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 18% 12%, var(--accent-mix), transparent 55%),
    radial-gradient(circle at 82% 4%, var(--accent-two-mix), transparent 50%);
  min-height: 100vh;
}

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

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

/* Header */
.header {
  position: sticky;
  top: 1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max-w);
  width: calc(100% - 2rem);
  margin: 0 auto;
  padding: 0.65rem 0.65rem 0.65rem 1.25rem;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.65rem;
  background: var(--gradient);
  color: var(--bg);
  font-weight: 900;
  font-size: 1.1rem;
}

.logo-name {
  font-size: 0.95rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav a {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.2s, background 0.2s;
}

.nav a:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 6%, transparent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-toggle,
.menu-toggle {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 60%, transparent);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.lang-toggle {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.lang-toggle:hover,
.menu-toggle:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Main layout */
main {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

section {
  padding: 4rem 0;
}

.section-head {
  margin-bottom: 2.5rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-head p {
  margin-top: 0.75rem;
  color: var(--muted);
  max-width: 38rem;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
  min-height: calc(100vh - var(--header-h) - 4rem);
  padding-top: 1rem;
}

.tag {
  display: inline-block;
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-text {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin-bottom: 2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

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

.btn.primary {
  background: var(--gradient);
  color: var(--bg);
  box-shadow: 0 8px 28px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn.secondary {
  border-color: var(--line);
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  color: var(--text);
}

.btn.secondary:hover {
  border-color: color-mix(in srgb, var(--accent-two) 35%, var(--line));
}

.hero-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 3rem 2rem;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transform: rotate(2deg);
  box-shadow:
    0 24px 60px color-mix(in srgb, var(--bg) 40%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
}

.hero-card-letter {
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 900;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-card-words {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
}

/* Profile */
.profile {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 2.5rem;
  align-items: start;
}

.profile-text {
  color: var(--muted);
  font-size: 1.05rem;
}

/* Areas */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.area-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  transition: border-color 0.2s, transform 0.2s;
}

.area-card:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
  transform: translateY(-3px);
}

.area-card:nth-child(2n) {
  background: color-mix(in srgb, var(--panel) 55%, var(--accent) 8%);
}

.area-num {
  display: block;
  margin-bottom: 0.85rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.area-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.65rem;
}

.area-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Process */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.step-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 75%, transparent);
}

.step-num {
  display: block;
  margin-bottom: 0.85rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-two);
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.55;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: start;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.contact-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-item a,
.contact-item span:last-child {
  font-size: 1rem;
  font-weight: 600;
}

.contact-item a:hover {
  color: var(--accent);
}

.contact-form {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.contact-form label.full {
  grid-column: 1 / -1;
}

.contact-form input,
.contact-form textarea {
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
}

.contact-form .btn {
  grid-column: 1 / -1;
  justify-self: start;
}

/* Footer */
.footer {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1rem 2.5rem;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 980px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: calc(var(--header-h) + 1.5rem);
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: color-mix(in srgb, var(--panel) 95%, transparent);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav a {
    padding: 0.75rem 1rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-card {
    max-width: 22rem;
    margin: 0 auto;
  }

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

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

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

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

  .contact-form {
    grid-column: auto;
  }
}

@media (max-width: 620px) {
  .header {
    top: 0.5rem;
    width: calc(100% - 1rem);
  }

  section {
    padding: 2.5rem 0;
  }

  .areas-grid,
  .steps,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}