/* =========================================
   A11ytek – Stylesheet
   WCAG 2.2 AA compliant design
   ========================================= */

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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #7c3aed;
  --accent-light: #ede9fe;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --mid: #334155;
  --muted: #64748b;
  --light: #f1f5f9;
  --white: #ffffff;
  --border: #e2e8f0;
  --success: #16a34a;
  --error: #dc2626;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === Skip Link === */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 0;
}

/* === Screen Reader Only === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* === Focus Styles (WCAG 2.4.11) === */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === Typography === */
h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--dark);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.2rem; }

p { color: var(--mid); }

a {
  color: var(--primary);
  text-decoration: underline;
  transition: color var(--transition);
}
a:hover { color: var(--primary-dark); }

ul { list-style: none; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary-light);
}

.btn-nav {
  background: var(--primary);
  color: var(--white) !important;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
.btn-nav:hover {
  background: var(--primary-dark);
  color: var(--white);
}

.btn-full { width: 100%; }

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.logo-icon { flex-shrink: 0; border-radius: 12px; }
.logo-word {
  display: inline-flex;
  align-items: baseline;
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}
/* A and y — primary blue */
.logo-a,
.logo-y  { color: var(--primary); }
/* 11 — accent purple, highlights the numeronym */
.logo-11 { color: var(--accent); font-style: italic; }
/* tek — accent purple, lighter weight to contrast A11y */
.logo-tek { color: var(--accent); font-weight: 500; letter-spacing: 0; }

/* Nav */
.nav { display: flex; align-items: center; }

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--dark);
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform var(--transition);
}
.hamburger { position: relative; }
.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after  { top: 6px; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-menu a {
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  color: var(--mid);
  transition: color var(--transition), background var(--transition);
}
.nav-menu a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

/* === Section Base === */
.section {
  padding: 5rem 0;
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}
.section-header h2 { margin: 0.5rem 0 1rem; }
.section-header.light h2,
.section-header.light p { color: var(--white); }
.section-header.light p { opacity: 0.85; }

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
}

/* === Hero === */
.hero {
  padding: 5rem 0 4rem;
  background: linear-gradient(135deg, #f8faff 0%, #f0f4ff 50%, #faf5ff 100%);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  margin: 1.25rem 0 2rem;
  max-width: 520px;
  color: var(--mid);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 400px;
}
.hero-circle {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  border-radius: 50%;
  opacity: 0.4;
  transform: scale(0.85);
}
.hero-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  min-width: 200px;
}
.hero-card strong { display: block; font-size: 0.9rem; color: var(--dark); }
.hero-card p { font-size: 0.8rem; color: var(--muted); margin: 0; }
.card-icon {
  font-size: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: 8px;
  flex-shrink: 0;
}
.card-1 { top: 15%; left: 5%; animation: float 5s ease-in-out infinite; }
.card-2 { top: 50%; right: 0; animation: float 5s ease-in-out infinite 1.5s; }
.card-3 { bottom: 10%; left: 10%; animation: float 5s ease-in-out infinite 3s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* === Services === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.service-icon { font-size: 2rem; margin-bottom: 1rem; }
.service-card h3 { margin-bottom: 0.75rem; }
.service-card > p { font-size: 0.95rem; margin-bottom: 1.25rem; }
.service-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.service-features li {
  font-size: 0.875rem;
  color: var(--muted);
  padding-left: 1.25rem;
  position: relative;
}
.service-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* === Document Accessibility === */
.docs-section { background: var(--light); }

.docs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.doc-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.doc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.doc-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1.25rem 1.5rem 1rem;
}
.doc-header.pdf  { background: #fff5f5; }
.doc-header.word { background: #ebf2fc; }
.doc-header.ppt  { background: #fff3ef; }
.doc-header.excel{ background: #f0faf4; }

.doc-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 8px;
}

.doc-header h3 {
  font-size: 1rem;
  margin: 0;
  color: var(--dark);
}

.doc-card > p {
  font-size: 0.88rem;
  padding: 0 1.5rem 1rem;
  line-height: 1.65;
  flex-shrink: 0;
}

.doc-features {
  list-style: none;
  padding: 0 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}
.doc-features li {
  font-size: 0.82rem;
  color: var(--muted);
  padding-left: 1.1rem;
  position: relative;
}
.doc-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.btn-outline-doc {
  display: block;
  margin: auto 1.5rem 1.5rem;
  padding: 0.6rem 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.btn-outline-doc:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.docs-cta {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.docs-cta p {
  color: rgba(255,255,255,0.92);
  font-size: 1rem;
  margin: 0;
  max-width: 580px;
}
.docs-cta .btn-primary {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
  white-space: nowrap;
  flex-shrink: 0;
}
.docs-cta .btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
}

/* === About === */
.about { background: var(--light); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-visual {
  position: relative;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
}
.ring-1 { width: 100%; height: 100%; border-color: rgba(37,99,235,0.15); }
.ring-2 { width: 75%; height: 75%; border-color: rgba(37,99,235,0.25); animation: spin 30s linear infinite; }
.ring-3 { width: 50%; height: 50%; border-color: rgba(124,58,237,0.3); animation: spin 20s linear infinite reverse; }
.about-center {
  position: relative;
  z-index: 2;
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 800;
}
.orbit-icon {
  position: absolute;
  font-size: 1.75rem;
  background: white;
  border-radius: 50%;
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
}
.oi-1 { top: 5%; left: 50%; transform: translateX(-50%); }
.oi-2 { right: 5%; top: 50%; transform: translateY(-50%); }
.oi-3 { bottom: 5%; left: 50%; transform: translateX(-50%); }
.oi-4 { left: 5%; top: 50%; transform: translateY(-50%); }

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.about-text .section-tag { margin-bottom: 1rem; }
.about-text h2 { margin-bottom: 1.25rem; }
.about-text p { margin-bottom: 1rem; }

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.value-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  background: var(--white);
  border-radius: 10px;
  padding: 0.5rem;
  box-shadow: var(--shadow);
}
.value-item strong { display: block; color: var(--dark); margin-bottom: 0.25rem; }
.value-item p { font-size: 0.9rem; margin: 0; }

/* === Why === */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.why-card {
  background: var(--light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.why-icon { font-size: 2rem; margin-bottom: 1rem; }
.why-card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }
.why-card p { font-size: 0.9rem; }

/* === Stats === */
.stats {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
}
.stats .section-tag {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-suffix {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}
.stat-label {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}
.process-step {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  opacity: 0.9;
}
.process-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
  max-width: 200px;
  text-align: center;
}

/* === Testimonials === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}
.testimonial-card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.testimonial-card.featured {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.03);
}
.testimonial-card p {
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.7;
}
.testimonial-card.featured p { color: rgba(255,255,255,0.9); }
.testimonial-card footer {
  margin-top: 1.5rem;
}
.testimonial-card footer strong {
  display: block;
  color: var(--dark);
  font-size: 0.95rem;
}
.testimonial-card.featured footer strong { color: var(--white); }
.testimonial-card footer span {
  font-size: 0.8rem;
  color: var(--muted);
}
.testimonial-card.featured footer span { color: rgba(255,255,255,0.7); }

/* === Contact === */
.contact { background: var(--light); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-text .section-tag { margin-bottom: 1rem; }
.contact-text h2 { margin-bottom: 1rem; }
.contact-text > p { margin-bottom: 2rem; }
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}
.contact-item a { color: var(--dark); font-weight: 500; }
.contact-item a:hover { color: var(--primary); }

/* Form */
.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}
.required { color: var(--error); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--transition);
  width: 100%;
}
.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  border-color: var(--primary);
  outline: 3px solid var(--primary);
  outline-offset: 1px;
  box-shadow: 0 0 0 4px rgba(37,99,235,0.15);
}
.form-group textarea { resize: vertical; }
.form-note {
  font-size: 0.875rem;
  text-align: center;
  min-height: 1.2em;
}

/* === Footer === */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding-top: 4rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.9rem; color: var(--white); opacity: 0.9; max-width: 240px; }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer-col h3 {
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-col a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  padding: 1.5rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-bottom p { font-size: 0.85rem; color: var(--white); opacity: 1; }
.footer-bottom a { color: var(--white); text-decoration: underline; }
.footer-bottom a:hover { color: var(--primary-light); }

/* === Responsive === */
@media (max-width: 1024px) {
  .services-grid,
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .docs-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    gap: 0;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a, .nav-menu .btn-nav {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.75rem 1rem;
  }
  .nav { position: relative; }

  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { height: 250px; }
  .contact-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

@media (max-width: 540px) {
  .services-grid,
  .why-grid,
  .docs-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-nav { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === High Contrast === */
@media (forced-colors: active) {
  .btn-primary, .btn-nav { forced-color-adjust: none; }
  .gradient-text { -webkit-text-fill-color: ButtonText; }
}