/* 
 * Demko Çay Kazanları
 * Modern, Responsive, Vanilla CSS (Beyaz Tema / Açık Tonlar)
 */

:root {
  --font-brand: "Jost", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Siyah logoyu en iyi öne çıkaran net beyaz ve ferah tonlar */
  --color-background: #ffffff;
  --color-foreground: #111827;        /* Güçlü, okunaklı siyah/koyu antrasit */
  --color-muted: #f8fafc;             /* Çok açık, yumuşak zemin */
  --color-muted-foreground: #64748b;  /* Dengeli gri ara ton */
  --color-border: #e5e7eb;            /* İnce, zarif gri ayırıcı */
  --color-primary: #111827;           /* Logo ile uyumlu siyah buton/vurgu */
  --color-primary-foreground: #ffffff;
}

/* Box sizing and reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: var(--font-brand);
  background-color: var(--color-background) !important;
  color: var(--color-foreground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page Layout */
.page-container {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  background-color: var(--color-background);
}

.content-wrapper {
  max-width: 48rem;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.8s ease-out;
}

/* Logo */
.logo-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo {
  width: 15rem; /* 240px */
  max-width: 90vw;
  height: auto;
  display: block;
  user-select: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: translateY(-2px);
}

@media (min-width: 640px) {
  .logo {
    width: 19rem; /* ~304px */
  }
}

/* Pulse Indicators */
.pulse-indicators {
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-foreground);
  animation: pulseDot 1.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.dot-1 {
  animation-delay: 0ms;
}

.dot-2 {
  animation-delay: 200ms;
}

.dot-3 {
  animation-delay: 400ms;
}

@keyframes pulseDot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.25;
    transform: scale(0.85);
  }
}

/* Typography */
.title {
  margin-top: 1.5rem;
  font-family: var(--font-display);
  font-size: 2.25rem; /* 36px */
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-foreground);
}

@media (min-width: 640px) {
  .title {
    font-size: 3.75rem; /* 60px */
    line-height: 1.1;
  }
}

/* Divider */
.divider {
  margin-top: 1.5rem;
  margin-left: auto;
  margin-right: auto;
  height: 1px;
  width: 4rem; /* 64px */
  background-color: var(--color-border);
}

/* Description */
.description {
  margin-top: 1.5rem;
  margin-left: auto;
  margin-right: auto;
  max-width: 28rem; /* 448px */
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-muted-foreground);
  font-weight: 400;
}

@media (min-width: 640px) {
  .description {
    font-size: 1.125rem; /* 18px */
    line-height: 1.7;
  }
}

/* Footer */
.footer {
  margin-top: 4rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  font-weight: 400;
}

/* 404 Specific styles */
.not-found-code {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 700;
  color: var(--color-foreground);
  line-height: 1;
}

.not-found-title {
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-foreground);
}

.btn-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  background-color: var(--color-primary);
  color: var(--color-primary-foreground);
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  margin-top: 1.5rem;
}

.btn-home:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}