/* ============================================================
   QIKRUN — Global Styles
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:          #f8f9fb;
  --color-surface:     #ffffff;
  --color-border:      #e4e8ef;
  --color-text:        #1a1d23;
  --color-text-muted:  #6b7280;
  --color-accent:      #2563eb;
  --color-accent-soft: #eff4ff;
  --color-accent-mid:  #93b4f8;
  --color-accent-dark: #1d4ed8;
  --color-gradient-a:  #2563eb;
  --color-gradient-b:  #38bdf8;

  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-sm:  0 1px 4px rgba(37,99,235,.06);
  --shadow-md:  0 4px 20px rgba(37,99,235,.10);
  --shadow-lg:  0 8px 40px rgba(37,99,235,.13);

  --transition: .22s ease;

  --max-width: 1120px;
  --section-gap: 96px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

ul, ol { list-style: none; }

/* --- Typography --- */
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; line-height: 1.18; letter-spacing: -.03em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 700; line-height: 1.25; letter-spacing: -.02em; }
h3 { font-size: 1.15rem; font-weight: 600; line-height: 1.35; }
p  { color: var(--color-text-muted); }

/* --- Layout helpers --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

section { padding-block: var(--section-gap); }

.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-family);
  font-size: .925rem;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent-soft);
  transform: translateY(-1px);
}

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

/* --- Card --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.card:hover {
  border-color: var(--color-accent-mid);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,249,251,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -.02em;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo:hover { color: var(--color-accent); }

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-accent); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { margin-left: 16px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border);
  gap: 4px;
  background: var(--color-surface);
}
.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--color-accent); }
.mobile-menu.open { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-block: 80px 96px;
  overflow: hidden;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border: 1px solid rgba(37,99,235,.18);
  padding: 6px 14px;
  border-radius: 99px;
  margin-bottom: 24px;
}
.hero-badge-dot {
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(1.4); }
}

.hero h1 { margin-bottom: 20px; }
.hero h1 span { color: var(--color-accent); }

.hero-lead {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-circle {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%,
    rgba(56,189,248,.18) 0%,
    rgba(37,99,235,.10) 60%,
    transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-circle::before {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed rgba(37,99,235,.2);
  animation: spin 24s linear infinite;
}
.hero-circle::after {
  content: '';
  position: absolute;
  inset: -50px;
  border-radius: 50%;
  border: 1px dashed rgba(37,99,235,.1);
  animation: spin 40s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-parrot-svg {
  width: 220px;
  height: 220px;
  animation: float 5s ease-in-out infinite;
  filter: drop-shadow(0 12px 32px rgba(37,99,235,.22));
}
@keyframes float {
  0%,100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-14px) rotate(3deg); }
}

/* Speed trail dots */
.trail-dots {
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.trail-dot {
  height: 6px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 99px;
  opacity: 0;
  animation: trailAnim 1.8s ease-in-out infinite;
}
.trail-dot:nth-child(1) { width: 48px; animation-delay: 0s; }
.trail-dot:nth-child(2) { width: 36px; animation-delay: .15s; }
.trail-dot:nth-child(3) { width: 24px; animation-delay: .3s; }
.trail-dot:nth-child(4) { width: 16px; animation-delay: .45s; }
@keyframes trailAnim {
  0%   { opacity: 0; transform: scaleX(.4); }
  40%  { opacity: 1; transform: scaleX(1); }
  100% { opacity: 0; transform: scaleX(.8); }
}

/* ============================================================
   ABOUT SECTION (index)
   ============================================================ */
.about-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text h2 { margin-bottom: 16px; }
.about-text p { margin-bottom: 16px; line-height: 1.75; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}
.stat-card {
  background: var(--color-accent-soft);
  border: 1px solid rgba(37,99,235,.12);
  border-radius: var(--radius-md);
  padding: 20px;
}
.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: .82rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.about-feature:hover {
  border-color: var(--color-accent-mid);
  background: var(--color-accent-soft);
}
.about-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.about-feature-text h4 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.about-feature-text p {
  font-size: .85rem;
  margin: 0;
}

/* ============================================================
   LEARNING CARDS
   ============================================================ */
.learning-section { background: var(--color-bg); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p   { max-width: 520px; margin-inline: auto; font-size: 1.05rem; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.learning-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.learning-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--color-gradient-a), var(--color-gradient-b));
  opacity: 0;
  transition: opacity var(--transition);
}
.learning-card:hover {
  border-color: var(--color-accent-mid);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.learning-card:hover::before { opacity: 1; }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  background: var(--color-accent-soft);
}

.learning-card h3 { margin-bottom: 10px; color: var(--color-text); }
.learning-card p  { font-size: .9rem; line-height: 1.65; }

/* ============================================================
   WHY US
   ============================================================ */
.why-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}
.why-card:hover {
  border-color: var(--color-accent-mid);
  background: var(--color-accent-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.why-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-gradient-a), var(--color-gradient-b));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: #fff;
}

.why-card h3 { margin-bottom: 10px; }
.why-card p  { font-size: .9rem; }

/* ============================================================
   FOR WHOM
   ============================================================ */
.forwhom-section { background: var(--color-bg); }

.forwhom-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: center;
}

.forwhom-left h2 { margin-bottom: 16px; }
.forwhom-left p  { font-size: 1rem; line-height: 1.7; }

.forwhom-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.forwhom-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.forwhom-item:hover {
  border-color: var(--color-accent-mid);
  box-shadow: var(--shadow-sm);
}
.forwhom-check {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: .85rem;
}
.forwhom-item p {
  font-size: .95rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: linear-gradient(135deg,
    rgba(37,99,235,.06) 0%,
    rgba(56,189,248,.06) 100%);
  border-top: 1px solid var(--color-border);
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}
.cta-inner h2 { margin-bottom: 16px; }
.cta-inner p  { font-size: 1.05rem; margin-bottom: 36px; line-height: 1.75; }

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,.65);
  padding-block: 56px 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  color: rgba(255,255,255,.5);
  font-size: .875rem;
  max-width: 260px;
  line-height: 1.65;
}

.footer-col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a  {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  padding-block: 64px 72px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.page-hero h1 { margin-bottom: 16px; }
.page-hero p  {
  font-size: 1.1rem;
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.story-section { background: var(--color-bg); }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.story-content h2 { margin-bottom: 20px; }
.story-content p  { margin-bottom: 16px; line-height: 1.78; }

.philosophy-grid {
  display: grid;
  gap: 16px;
}
.philosophy-item {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}
.philosophy-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.philosophy-item p {
  font-size: .875rem;
}

.focus-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
.focus-card {
  padding: 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.focus-card h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-accent);
}

/* ============================================================
   LEARNING PAGE
   ============================================================ */
.curriculum-section { background: var(--color-bg); }

.topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.topic-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  gap: 16px;
  transition: var(--transition);
}
.topic-card:hover {
  border-color: var(--color-accent-mid);
  box-shadow: var(--shadow-sm);
}
.topic-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: .3;
  line-height: 1;
  min-width: 40px;
  font-family: var(--font-mono);
}
.topic-content h4 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.topic-content p { font-size: .85rem; }

.outcomes-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.outcomes-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.outcome-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.outcome-icon {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-top: 2px;
  flex-shrink: 0;
}
.outcome-item p {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0;
}

.approach-section { background: var(--color-bg); }
.approach-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.step-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-a), var(--color-gradient-b));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-card h4 { margin-bottom: 10px; }
.step-card p  { font-size: .875rem; }

/* ============================================================
   CONTACTS PAGE
   ============================================================ */
.contacts-section { background: var(--color-bg); }

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contacts-info h2 { margin-bottom: 16px; }
.contacts-info > p { line-height: 1.75; margin-bottom: 36px; }

.contact-items { display: flex; flex-direction: column; gap: 16px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.contact-item:hover {
  border-color: var(--color-accent-mid);
  box-shadow: var(--shadow-sm);
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}
.contact-detail h4 { font-size: .875rem; font-weight: 600; margin-bottom: 2px; }
.contact-detail a  {
  font-size: .9rem;
  color: var(--color-accent);
  transition: color var(--transition);
}
.contact-detail a:hover { color: var(--color-accent-dark); }

.contacts-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
}
.contacts-card .hero-parrot-svg {
  width: 140px;
  height: 140px;
  margin: 0 auto 24px;
  animation: float 5s ease-in-out infinite;
}
.contacts-card h3 { margin-bottom: 12px; }
.contacts-card p  { margin-bottom: 28px; font-size: .95rem; line-height: 1.7; }

/* ============================================================
   404 PAGE
   ============================================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  background: var(--color-bg);
}
.error-inner {
  text-align: center;
  max-width: 540px;
}

.error-parrot-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 16px;
}
.error-parrot-svg {
  width: 200px;
  height: 200px;
  animation: errorFloat 4s ease-in-out infinite;
  filter: drop-shadow(0 16px 40px rgba(37,99,235,.2));
}
@keyframes errorFloat {
  0%,100% { transform: translateY(0) rotate(-6deg); }
  50%      { transform: translateY(-18px) rotate(6deg); }
}

/* speed lines behind parrot */
.speed-lines {
  position: absolute;
  left: -60px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.speed-line {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent));
  border-radius: 99px;
  opacity: 0;
  animation: speedLine 1.6s ease-in-out infinite;
}
.speed-line:nth-child(1) { width: 52px; animation-delay: 0s; }
.speed-line:nth-child(2) { width: 40px; animation-delay: .12s; }
.speed-line:nth-child(3) { width: 28px; animation-delay: .24s; }
.speed-line:nth-child(4) { width: 18px; animation-delay: .36s; }
@keyframes speedLine {
  0%   { opacity: 0; transform: scaleX(.3); }
  50%  { opacity: .8; transform: scaleX(1); }
  100% { opacity: 0; transform: scaleX(.6); }
}

.error-code {
  font-size: 7rem;
  font-weight: 800;
  letter-spacing: -.06em;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-gradient-a), var(--color-gradient-b));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.error-inner h2 { margin-bottom: 12px; color: var(--color-text); }
.error-inner > p { font-size: 1rem; line-height: 1.7; margin-bottom: 32px; }

.error-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  :root { --section-gap: 72px; }

  .hero-inner       { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual      { order: -1; }
  .hero-circle      { width: 280px; height: 280px; }
  .hero-parrot-svg  { width: 160px; height: 160px; }

  .about-grid       { grid-template-columns: 1fr; gap: 48px; }
  .cards-grid       { grid-template-columns: 1fr; }
  .why-grid         { grid-template-columns: 1fr; gap: 20px; }
  .forwhom-inner    { grid-template-columns: 1fr; gap: 40px; }

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

  .story-grid       { grid-template-columns: 1fr; gap: 48px; }
  .focus-grid       { grid-template-columns: 1fr; }
  .topics-grid      { grid-template-columns: 1fr; }
  .outcomes-list    { grid-template-columns: 1fr; }
  .approach-steps   { grid-template-columns: 1fr; }
  .contacts-grid    { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  :root { --section-gap: 56px; }

  .nav-links, .nav-cta { display: none; }
  .hamburger            { display: flex; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .hero-circle      { width: 240px; height: 240px; }
  .hero-parrot-svg  { width: 130px; height: 130px; }

  .about-stats      { grid-template-columns: 1fr 1fr; }
  .footer-grid      { grid-template-columns: 1fr; gap: 32px; }

  .footer-bottom    { flex-direction: column; text-align: center; }

  .error-code       { font-size: 5rem; }
  .error-parrot-svg { width: 150px; height: 150px; }
  .speed-lines      { left: -40px; }
}