/* ===== Saftle — Elegant software company site ===== */

:root {
  --color-bg: #fafbfc;
  --color-bg-alt: #f4f6f8;
  --color-bg-card: #ffffff;
  --color-text: #1a1d21;
  --color-text-muted: #5c6369;
  --color-border: #e8eaed;
  --color-accent: #0ea5e9;
  --color-accent-hover: #0284c7;
  --color-accent-soft: rgba(14, 165, 233, 0.1);
  --color-accent-muted: rgba(14, 165, 233, 0.3);
  --font-sans: "Outfit", system-ui, sans-serif;
  --font-heading: "Outfit", system-ui, sans-serif;
  --font-logo: "DM Sans", var(--font-sans);
  --max-width: 1120px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Language toggle */
html.lang-en .lang-tr { display: none !important; }
html.lang-tr .lang-en { display: none !important; }

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: rgba(14, 165, 233, 0.15);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(14, 165, 233, 0.06) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

/* ----- Header ----- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

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

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: var(--space-sm);
}

.lang-switcher button {
  padding: 0.35rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.lang-switcher button:hover {
  color: var(--color-text);
}

.lang-switcher button.is-active {
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border-color: var(--color-accent-muted);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  transition: opacity 0.25s var(--ease-out);
}

.logo:hover {
  opacity: 0.9;
  color: var(--color-text);
}

.logo-img {
  display: block;
  height: 28px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-logo);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  -webkit-font-smoothing: antialiased;
}

.header .logo-img {
  height: 30px;
}

.header .logo-text {
  font-size: 1.5rem;
}

.footer .logo-img {
  height: 24px;
}

.footer .logo-text {
  font-size: 1.15rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s var(--ease-out);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.25s var(--ease-out);
}

.nav a:hover {
  color: var(--color-text);
}

.nav a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 0;
  margin: 0;
  background: none;
  border: none;
  cursor: pointer;
  overflow: visible;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
  flex-shrink: 0;
}

/* Açık menü: sağa bakan chevron (›) — sadece chevron küçük, hamburger aynı */
.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(-2.5px) scale(0.55) rotate(-45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(2.5px) scale(0.55) rotate(45deg);
}

/* ----- Hero ----- */
.hero {
  padding: var(--space-2xl) 0 var(--space-3xl);
  min-height: 0;
  display: flex;
  align-items: center;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-accent) 0%, transparent 70%);
  border-radius: 0 4px 4px 0;
  opacity: 0.7;
}

.hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: min(45vw, 420px);
  height: 280px;
  background: radial-gradient(ellipse at 70% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.hero-content .hero-eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-lg);
  color: var(--color-text);
}

.hero-lead {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 520px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out), border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 2px 12px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.35);
}

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

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

/* ----- Sections ----- */
.section {
  padding: calc(var(--space-3xl) + 1rem) 0;
}

.section-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 var(--space-sm);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.5vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-xl);
  color: var(--color-text);
  line-height: 1.2;
}

/* ----- Services ----- */
.services {
  background: var(--color-bg-alt);
  position: relative;
}

.services .container::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-accent);
  border-radius: 0 3px 3px 0;
  opacity: 0.2;
}

.services-lead {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin: 0 0 var(--space-sm);
  max-width: 52ch;
}

.services-tags {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 1.6;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  border-top: 3px solid transparent;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), border-top-color 0.3s var(--ease-out);
}

.service-card:hover {
  border-color: var(--color-accent-muted);
  border-top-color: var(--color-accent);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  transform: translateY(-3px);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.service-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ----- About ----- */
.about-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2xl);
  align-items: start;
}

.about-text .about-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.about-text p:last-of-type {
  margin: 0;
  color: var(--color-text-muted);
}

.about-side {
  padding: var(--space-xl);
  border-left: 3px solid var(--color-accent);
}

.about-side-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-md);
}

.about-side-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.about-side-list li {
  margin: 0;
}

/* ----- Contact ----- */
.contact {
  background: var(--color-bg-alt);
}

.contact-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 480px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
}

.contact-email {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.25s var(--ease-out);
}

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

/* ----- Location (contact page) ----- */
.location-section {
  margin: var(--space-2xl) 0 0;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.location-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.location-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.location-map-wrap {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
  background: var(--color-bg-alt);
}

.location-map {
  display: block;
  width: 100%;
  height: 320px;
  border: 0;
}

.location-address {
  margin-bottom: var(--space-md);
}

.location-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.location-text {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.6;
  margin: 0 0 var(--space-sm);
}

.location-place {
  color: var(--color-accent);
  font-weight: 500;
}

.location-directions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.location-directions:hover {
  color: var(--color-accent-hover);
  transform: translateX(2px);
}

@media (min-width: 640px) {
  .location-map {
    height: 400px;
  }
}

/* ----- References ----- */
.references {
  background: var(--color-bg-alt);
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.reference-card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  border-left: 3px solid var(--color-accent-muted);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), border-left-color 0.3s var(--ease-out);
}

.reference-card:hover {
  border-left-color: var(--color-accent);
  border-color: var(--color-accent-muted);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  transform: translateY(-3px);
}

.ref-logo {
  margin-bottom: var(--space-md);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.ref-logo img {
  max-width: 140px;
  max-height: 44px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.reference-card .ref-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.reference-card .ref-role {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.reference-card .ref-quote {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin: 0;
  font-style: italic;
}

/* ----- Sample apps ----- */
.sample-apps {
  background: var(--color-bg);
}

.sample-apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.sample-app-card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  border-left: 3px solid var(--color-accent-muted);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), border-left-color 0.3s var(--ease-out);
}

.sample-app-card:hover {
  border-left-color: var(--color-accent);
  border-color: var(--color-accent-muted);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  transform: translateY(-3px);
}

.sample-app-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.sample-app-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0 0 var(--space-md);
}

.sample-app-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
  display: inline-block;
}

.sample-app-link:hover {
  color: var(--color-accent-hover);
  transform: translateX(4px);
}

/* ----- Footer ----- */
.footer {
  padding: calc(var(--space-xl) + 0.5rem) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-xl);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.25s var(--ease-out);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.footer-copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.lang-switcher-footer {
  margin-right: 0;
}

/* ----- Page (inner) ----- */
.page-main {
  padding: calc(var(--space-2xl) + 1rem) 0 calc(var(--space-3xl) + 1rem);
}

.page-header {
  margin-bottom: var(--space-xl);
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.5vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text);
  line-height: 1.2;
}

.page-services {
  margin-bottom: var(--space-xl);
}

.page-cta {
  margin: 0;
}

.page-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.prose {
  max-width: 65ch;
  line-height: 1.7;
}

.prose .lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
}

.prose h2 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 500;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--color-text);
}

.prose p, .prose ul {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.prose ul {
  padding-left: 1.25rem;
}

.prose a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent-muted);
  transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}

.prose a:hover {
  color: var(--color-accent-hover);
  border-bottom-color: var(--color-accent);
}

/* Butonlar prose içinde link stili almasın */
.prose .btn,
.prose a.btn {
  color: inherit;
  border-bottom: none;
}
.prose .btn-primary,
.prose a.btn-primary {
  color: #fff;
  background: var(--color-accent);
}
.prose .btn-primary:hover,
.prose a.btn-primary:hover {
  color: #fff;
  background: var(--color-accent-hover);
}
.prose .btn-ghost,
.prose a.btn-ghost {
  color: var(--color-text);
}
.prose .btn-ghost:hover,
.prose a.btn-ghost:hover {
  color: var(--color-accent-hover);
}

.legal-page .page-header {
  margin-bottom: var(--space-lg);
}

.legal-updated {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: var(--space-xs) 0 0;
}

.legal-prose {
  max-width: 70ch;
}

.contact-block {
  margin: var(--space-lg) 0;
}

.contact-block p {
  margin-bottom: var(--space-md);
}

/* ----- FAQ ----- */
.faq-list {
  margin-bottom: var(--space-xl);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  font-weight: 500;
  padding: var(--space-md) 0;
  cursor: pointer;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--color-text-muted);
}

.faq-item[open] .faq-question::after {
  content: "−";
}

.faq-answer {
  padding: 0 0 var(--space-md);
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.faq-answer a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent-muted);
}

.faq-answer a:hover {
  color: var(--color-accent-hover);
}

/* ----- Cookie banner ----- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-text {
  flex: 1;
  min-width: 260px;
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.cookie-text a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent-muted);
  transition: color 0.25s var(--ease-out);
}

.cookie-text a:hover {
  color: var(--color-accent-hover);
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* ----- Responsive: mobil öncelikli, “webten dönüşmüş” hissi yok ----- */
@media (max-width: 768px) {
  .container {
    padding-left: max(1.25rem, env(safe-area-inset-left));
    padding-right: max(1.25rem, env(safe-area-inset-right));
  }

  .header {
    padding-left: env(safe-area-inset-left);
    padding-right: max(1rem, calc(env(safe-area-inset-right) + 0.5rem));
    overflow: visible;
  }

  .header-inner {
    height: 56px;
    min-height: 56px;
    overflow: visible;
  }

  .header .logo-img {
    height: 26px;
  }

  .header .logo-text {
    font-size: 1.25rem;
  }

  .nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    flex-direction: column;
    align-items: stretch;
    padding: max(1.25rem, env(safe-area-inset-top)) 1.25rem 1.25rem;
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom));
    background: var(--color-bg);
    gap: 0;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s var(--ease-out), opacity 0.25s var(--ease-out), visibility 0.25s var(--ease-out);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

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

  /* Nav fixed relative to viewport: avoid filter on header so fixed works (backdrop-filter would trap it) */
  .header {
    backdrop-filter: none;
    background: var(--color-bg);
  }

  .nav a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0.75rem 0;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav a::after {
    display: none;
  }

  .lang-switcher-footer button {
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem 0.75rem;
    font-size: 0.9375rem;
  }

  .menu-toggle {
    display: flex;
    width: 44px;
    min-width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    margin-left: auto;
    overflow: visible;
    position: relative;
    z-index: 95;
  }

  .menu-toggle span {
    width: 20px;
    height: 2px;
  }

  .hero {
    min-height: auto;
    padding: 1.75rem 0 2rem;
  }

  .hero-title {
    font-size: clamp(1.875rem, 8vw, 2.5rem);
  }

  .hero-lead {
    font-size: 1.0625rem;
  }

  .section {
    padding: 2rem 0;
  }

  .section-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
  }

  .section-eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
  }

  .services-lead {
    font-size: 0.9375rem;
  }

  .services-tags {
    font-size: 0.8125rem;
  }

  .services-grid,
  .references-grid,
  .sample-apps-grid {
    grid-template-columns: 1fr;
    gap: 0.875rem;
  }

  .service-card,
  .reference-card,
  .sample-app-card {
    padding: 1rem;
  }

  .service-card h3 {
    font-size: 1.0625rem;
  }

  .service-card p {
    font-size: 0.875rem;
  }

  .reference-card .ref-name {
    font-size: 0.9375rem;
  }

  .reference-card .ref-role {
    font-size: 0.75rem;
  }

  .reference-card .ref-quote {
    font-size: 0.875rem;
  }

  .sample-app-name {
    font-size: 1rem;
  }

  .sample-app-desc {
    font-size: 0.875rem;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .about-side {
    border-left: none;
    border-top: 2px solid var(--color-accent);
    padding: 1.25rem 0 0;
    margin-top: 1rem;
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .contact-email {
    display: inline-block;
    padding: 0.5rem 0;
    font-size: 1rem;
  }

  .contact-lead {
    font-size: 0.9375rem;
  }

  .about-text .about-lead,
  .about-text p {
    font-size: 0.9375rem;
  }

  .about-side-list {
    font-size: 0.875rem;
  }

  .page-main {
    padding: 1.5rem 0 2.5rem;
  }

  .page-header {
    margin-bottom: 1.25rem;
  }

  .page-title {
    font-size: 1.35rem;
  }

  .footer {
    padding: 1.5rem 0;
    padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.75rem;
  }

  .btn {
    width: 100%;
    min-height: 48px;
    justify-content: center;
    font-size: 1rem;
  }

  .cookie-banner {
    padding: 1rem max(1rem, env(safe-area-inset-left)) max(1rem, env(safe-area-inset-bottom));
    padding-bottom: max(1rem, env(safe-area-inset-bottom));
  }

  .cookie-banner-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .cookie-text {
    min-width: 0;
    font-size: 0.9375rem;
  }

  .cookie-actions {
    justify-content: stretch;
  }

  .cookie-actions .btn,
  .cookie-actions button {
    min-height: 48px;
  }
}