/* ============================================================
   Stream Player - Web Site Styles
   Tema: Uygulamanın Material3 temasına uygun (tek tema, koyu)
   ============================================================ */

:root {
  /* Uygulama teması renkleri */
  --primary: #3E66F4;
  --on-primary: #FFFFFF;
  --primary-container: #283FA4;
  --on-primary-container: #FFFFFF;
  --secondary: #8E95FF;
  --on-secondary: #000000;
  --secondary-container: #2B2F6A;
  --on-secondary-container: #FFFFFF;
  --tertiary: #E84A5F;
  --on-tertiary: #FFFFFF;
  --tertiary-container: #7A2530;
  --on-tertiary-container: #FFFFFF;
  --background: #12112A;
  --on-background: #FFFFFF;
  --surface: #1B1033;
  --on-surface: #FFFFFF;
  --surface-variant: #271843;
  --on-surface-variant: #2FAF86;
  --outline: #9233EA;
  --outline-variant: #4D4D65;
  --error: #FFB4AB;
  --on-error: #000000;

  /* Tipografi */
  --font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-xxl: 2.75rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--on-background);
  background: var(--background);
  background-image: linear-gradient(
    180deg,
    var(--background) 0%,
    var(--surface-variant) 50%,
    var(--surface) 100%
  );
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--secondary);
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

main {
  flex: 1;
}

/* ============================================================
   Header / Navigation
   ============================================================ */
.site-header {
  background: rgba(18, 17, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--outline-variant);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--on-background);
}

.brand:hover {
  color: var(--on-background);
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-tertiary);
  font-size: var(--font-size-lg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  color: var(--on-background);
  font-weight: 500;
  opacity: 0.85;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--secondary);
}

.nav-links a.active {
  color: var(--secondary);
  opacity: 1;
}

/* Dil değiştirici */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--surface-variant);
  border-radius: var(--radius-lg);
  padding: 4px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--on-background);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0.6;
}

.lang-btn:hover {
  opacity: 0.9;
}

.lang-btn.active {
  background: var(--primary);
  color: var(--on-primary);
  opacity: 1;
}

/* Mobil menü */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--on-background);
  font-size: var(--font-size-xl);
  cursor: pointer;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-logo {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  background: var(--tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: var(--on-tertiary);
  font-size: 3rem;
  box-shadow: var(--shadow-lg);
}

.hero h1 {
  font-size: var(--font-size-xxl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(90deg, var(--primary), var(--outline));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--font-size-md);
  color: var(--on-background);
  opacity: 0.85;
  margin-bottom: var(--spacing-xl);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 14px 28px;
  border-radius: var(--radius-lg);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-container);
  color: var(--on-primary-container);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--on-background);
  border: 2px solid var(--outline);
}

.btn-outline:hover {
  background: var(--outline);
  color: var(--on-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-tertiary {
  background: var(--tertiary);
  color: var(--on-tertiary);
  box-shadow: var(--shadow-sm);
}

.btn-tertiary:hover {
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  text-align: center;
  color: var(--on-background);
  opacity: 0.8;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

/* ============================================================
   Features Grid
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--outline);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--on-background);
  opacity: 0.8;
  font-size: var(--font-size-sm);
}

/* ============================================================
   Screenshot Section
   ============================================================ */
.screenshot-section {
  text-align: center;
}

.screenshot-placeholder {
  max-width: 320px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 2px solid var(--outline-variant);
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}

.screenshot-placeholder img {
  display: block;
  width: 100%;
}

/* ============================================================
   CTA Section
   ============================================================ */
.cta-section {
  text-align: center;
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  margin: var(--spacing-xxl) 0;
  border: 1px solid var(--outline-variant);
}

.cta-section h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  opacity: 0.85;
  margin-bottom: var(--spacing-lg);
}

/* ============================================================
   Legal Pages (Terms / Privacy)
   ============================================================ */
.legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xxl) 0;
}

.legal-page h1 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.legal-page .updated {
  color: var(--on-surface-variant);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xl);
  display: block;
}

.legal-page h2 {
  font-size: var(--font-size-lg);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--secondary);
}

.legal-page h3 {
  font-size: var(--font-size-md);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.legal-page p,
.legal-page li {
  color: var(--on-background);
  opacity: 0.9;
  margin-bottom: var(--spacing-sm);
}

.legal-page ul,
.legal-page ol {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.legal-page li {
  margin-bottom: var(--spacing-xs);
}

.legal-page strong {
  color: var(--on-background);
  opacity: 1;
}

.legal-page .highlight {
  background: var(--surface-variant);
  border-left: 4px solid var(--tertiary);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  margin: var(--spacing-md) 0;
}

/* ============================================================
   Contact Page
   ============================================================ */
.contact-page {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.contact-page h1 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.contact-page p {
  opacity: 0.85;
  margin-bottom: var(--spacing-xl);
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.contact-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--secondary);
}

.contact-card a {
  font-size: var(--font-size-md);
  word-break: break-all;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--background);
  border-top: 1px solid var(--outline-variant);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.footer-links a {
  color: var(--on-background);
  opacity: 0.7;
  font-size: var(--font-size-sm);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--secondary);
}

.footer-copyright {
  width: 100%;
  text-align: center;
  margin-top: var(--spacing-md);
  font-size: var(--font-size-xs);
  opacity: 0.6;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --font-size-xxl: 2rem;
    --font-size-xl: 1.5rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--surface);
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--outline-variant);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 320px;
  }

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}