:root {
  --bg: #0f0e17;
  --bg-soft: #16151f;
  --surface: #1d1b28;
  --surface-2: #25222f;
  --border: #332f42;
  --text: #f2f0f7;
  --text-muted: #b7b2c7;
  --accent: #f5a623;
  --accent-strong: #ffc857;
  --accent-ink: #241a00;
  --teal: #4ecdc4;
  --danger: #ff6b6b;
  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --container: 1100px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --step--1: 0.9rem;
  --step-0: 1.05rem;
  --step-1: 1.35rem;
  --step-2: 1.8rem;
  --step-3: 2.4rem;
  --step-4: clamp(2.4rem, 5.5vw, 3.6rem);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
}

p {
  margin: 0 0 var(--space-2);
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: var(--space-2);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--text);
}

.wordmark-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.nav-list {
  display: flex;
  gap: var(--space-3);
}

.nav-list a {
  font-weight: 500;
  font-size: var(--step--1);
  color: var(--text-muted);
  padding-block: var(--space-1);
  transition: color var(--transition);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--accent-strong);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.5rem;
  cursor: pointer;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-toggle .icon-close {
  display: none;
}

.site-header.nav-open .nav-toggle .icon-menu {
  display: none;
}

.site-header.nav-open .nav-toggle .icon-close {
  display: block;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    display: none;
  }

  .site-header.nav-open .site-nav {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: var(--space-2) var(--space-3);
  }

  .nav-list a {
    display: block;
    padding: var(--space-2) 0;
    font-size: var(--step-0);
    border-bottom: 1px solid var(--border);
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: var(--space-6) 0 var(--space-5);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 45% at 80% -10%, rgba(245, 166, 35, 0.16), transparent),
    radial-gradient(ellipse 50% 40% at 10% 110%, rgba(78, 205, 196, 0.1), transparent),
    var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  margin-bottom: var(--space-3);
}

.hero-title {
  font-size: var(--step-4);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.hero-subtitle {
  font-size: var(--step-1);
  color: var(--text-muted);
  max-width: 56ch;
  margin-bottom: var(--space-4);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--step-0);
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition);
}

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

.hero-inner .btn + .btn {
  margin-left: var(--space-2);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

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

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent-strong);
}

/* ---------- Sections ---------- */

.section-title {
  font-size: var(--step-3);
  margin-bottom: var(--space-3);
}

.section-intro {
  font-size: var(--step-1);
  color: var(--text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-4);
}

.about {
  padding: var(--space-6) 0;
  background: var(--bg-soft);
}

.about .container {
  max-width: 760px;
}

.about p {
  color: var(--text-muted);
  font-size: var(--step-0);
}

.services {
  padding: var(--space-6) 0;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 620px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 920px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition:
    transform var(--transition),
    border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.45);
}

.card-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.card h3 {
  font-size: var(--step-1);
}

.card p {
  color: var(--text-muted);
  font-size: var(--step--1);
  margin: 0;
}

/* ---------- Why choose us ---------- */

.why-choose-us {
  padding: var(--space-6) 0;
  background: var(--bg-soft);
}

.why-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 820px) {
  .why-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
}

.why-list li {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.why-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  color: var(--teal);
  margin-top: 4px;
}

.why-list h3 {
  font-size: var(--step-1);
  margin-bottom: var(--space-1);
}

.why-list p {
  color: var(--text-muted);
  font-size: var(--step--1);
  margin: 0;
}

/* ---------- Contact ---------- */

.contact {
  padding: var(--space-6) 0;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 820px) {
  .contact-inner {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-5);
    align-items: start;
  }
}

.contact-info > p {
  color: var(--text-muted);
}

.contact-location {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-style: normal;
  color: var(--text);
  margin-top: var(--space-3);
}

.contact-icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.social-list {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.social-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-muted);
  transition:
    color var(--transition),
    border-color var(--transition),
    transform var(--transition);
}

.social-list a:hover,
.social-list a:focus-visible {
  color: var(--accent-strong);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.social-icon {
  width: 20px;
  height: 20px;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow);
}

.form-field {
  margin-bottom: var(--space-3);
}

.form-field label {
  display: block;
  font-weight: 600;
  font-size: var(--step--1);
  margin-bottom: var(--space-1);
}

.form-field input,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  transition: border-color var(--transition);
}

.form-field input:hover,
.form-field textarea:hover {
  border-color: var(--accent);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-color: transparent;
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  width: 100%;
}

.form-note {
  margin-top: var(--space-2);
  font-size: var(--step--1);
  color: var(--teal);
  min-height: 1.4em;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: var(--space-4) 0 var(--space-3);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  text-align: center;
}

@media (min-width: 720px) {
  .footer-inner {
    grid-template-columns: auto 1fr auto;
    text-align: left;
    align-items: center;
    gap: var(--space-4);
  }
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  margin: 0;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: var(--step--1);
  margin: 0;
}

.footer-nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

@media (min-width: 720px) {
  .footer-nav-list {
    justify-content: center;
  }
}

.footer-nav-list a {
  color: var(--text-muted);
  font-size: var(--step--1);
  transition: color var(--transition);
}

.footer-nav-list a:hover,
.footer-nav-list a:focus-visible {
  color: var(--accent-strong);
}

.footer-copy {
  color: var(--text-muted);
  font-size: var(--step--1);
  margin: 0;
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
}

.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

/* ---------- Reduced motion ---------- */

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .btn:hover,
  .btn:focus-visible,
  .card:hover,
  .social-list a:hover,
  .social-list a:focus-visible {
    transform: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}