:root {
  --brand-blue: #1e88e5;
}

/* =====================
   RESET
===================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(to bottom, #f6f7f9 0%, #ffffff 60%);
  color: #111;
  min-height: 100vh;
}

/* =====================
   PAGE LAYOUT
===================== */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =====================
   HEADER
===================== */
.header {
  display: flex;
  justify-content: center;
  padding: 32px 20px 16px;
}

.logo {
  height: 80px;
  width: auto;
}

/* =====================
   BRAND BLOCK
===================== */
.brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 20px;
  text-align: center;
}

.brand-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--brand-blue);
}

.brand-sub {
  font-size: 16px;
  font-weight: 700;          /* 👈 DAHA TOK */
  color: #555;
}

/* =====================
   CUBE
===================== */
.cube-image {
  width: 140px;
  height: auto;
  margin-top: 6px;
}

/* =====================
   HERO TEXT
===================== */
.hero-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 28px 20px 40px;
  text-align: center;
}

.hero-block h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--brand-blue);
}

.hero-block p {
  max-width: 320px;
  font-size: 15px;
  font-weight: 700;          /* 👈 DAHA TOK */
  color: #444;
}

/* =====================
   CTA BUTTON
===================== */
.cta-button {
  padding: 12px 28px;
  background: var(--brand-blue);
  color: #fff;
  border-radius: 999px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(30, 136, 229, 0.3);
}

/* =====================
   FOOTER
===================== */
.footer {
  margin-top: auto;
  text-align: center;
  padding: 24px 10px;
  font-size: 13px;
  font-weight: 400;          /* 👈 HAFİF KALDI */
  color: #888;
}

.footer a {
  color: inherit;
  text-decoration: none;
}

/* =====================
   DESKTOP
===================== */
@media (min-width: 769px) {
  .logo {
    height: 150px;
  }

  .cube-image {
    width: 240px;
  }

  .brand-title {
    font-size: 48px;
  }

  .hero-block h2 {
    font-size: 36px;
  }

  .hero-block p {
    font-size: 18px;
    max-width: 640px;
  }

  .brand-sub {
    font-size: 18px;
  }
}