* {
  box-sizing: border-box;
}

/* Root Variables */
:root {
  --color-bg: var(--color-black-bg);
  --color-text-white: var(--color-white);
  --color-text-light-gray: #888888;
  --page-container-spacing: 7.5rem;
  /* 120px converted to rem */
  --container-max-width: 1440px;

  --font-heading: "Sentient Variable", serif;
  --font-body: "Google Sans Flex", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* ===== Colors - black ===== */
  --color-black-soft: #2A2A2A;
  --color-black: #1E1E1E;
  --color-black-bg: #1A1A1A;

  /* ===== Colors - white ===== */
  --color-white-bone: #FEF5EA;
  --color-white: #F6F4EF;
  --color-white-muted: #6F6C66;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--color-text-light-gray);
  background-color: var(--color-bg);
  min-height: 100vh;
}

/* Main Container Class - Controls horizontal padding throughout the page */
.page-container {
  margin: 0 auto;
  padding-left: var(--page-container-spacing);
  padding-right: var(--page-container-spacing);
}

/* Header Styles */
.site-header {
  position: sticky;
  top: 0;
  background-color: var(--color-black-bg);
  /* Updated to use variable */
  padding-top: 1rem;
  z-index: 10;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
}

.logo {
  width: 60px;
  height: auto;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-white);
  /* Updated to use variable */
}

.write-btn {
  background-color: var(--color-white);
  /* Updated to use variable */
  color: var(--color-black-bg);
  /* Updated to use variable */
  text-decoration: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: 4px;
  transition: all 0.3s ease;
  font-family: var(--font-mono);
  /* Added monospace font */
}

.write-btn:hover {
  background-color: var(--color-white-bone);
  /* Updated to use variable */
  color: var(--color-black);
  /* Updated to use variable */
}

/* Content Area */
.content-wrapper {
  padding: 6rem calc(var(--spacing-120px)) 4rem;
  /* Added more top padding to account for sticky header */
  display: flex;
  min-height: calc(100vh - 180px);
  /* Approximate height of header + footer to prevent full scroll, but still fill space */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-text-white);
  margin: 0.5rem 0;
  text-align: center;
}

h1 {
  font-size: 56px;
  line-height: 1.2;
  color: var(--color-white-bone);
}

h2 {
  font-size: 40px;
  line-height: 1.3;
}

h3 {
  font-size: 32px;
  line-height: 1.35;
}

h4 {
  font-size: 24px;
  line-height: 1.4;
  color: var(--color-black-soft);
}

h5 {
  font-size: 20px;
  line-height: 1.4;
}

h6 {
  font-size: 16px;
  line-height: 1.4;
}

p {
  font-size: 1rem;
  color: var(--color-text-light-gray);
  opacity: 0.7;
  text-align: center;
}

/* Footer */
.footer-container {
  text-align: center;
  padding: 2rem calc(var(--spacing-120px));
  margin-top: auto;
  background-color: var(--color-black-bg);
  /* Updated to use variable */
  color: var(--color-text-white);
  font-size: 0.875rem;
}



/* ===== Responsive Breakpoints ===== */

/* Tablet - 768px – 1199px */
@media screen and (min-width: 768px) and (max-width: 1199px) {
  :root {
    --container-max-width: 1024px;
    --page-container-spacing-120px: 2.5rem;
  }

  .logo {
    width: 50px;
  }

  h1 {
    font-size: 48px;
    line-height: 1.3;
  }

  h2 {
    font-size: 36px;
  }

  .content-wrapper {
    min-height: calc(100vh - 150px);
  }
}

/* Mobile - < 768px */
@media screen and (max-width: 767px) {
  :root {
    --container-max-width: 100%;
    --page-container-spacing-120px: 1.5rem;
  }

  .site-header {
    position: static;
    padding: 0.75rem var(--page-container-spacing-120px);
  }

  .header-container {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .logo {
    width: 45px;
  }

  .write-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
    width: 100%;
  }

  h1 {
    font-size: 36px;
    line-height: 1.3;
    padding: 0 1rem;
  }

  h2,
  h3 {
    text-align: center;
    width: 100%;
  }

  .content-wrapper {
    min-height: auto;
    padding: 4rem var(--page-container-spacing-120px);
    align-items: stretch;
  }

  h4 {
    font-size: 20px;
    padding: 0 1rem;
  }

  p {
    padding: 0 1rem;
  }

  .footer-container {
    padding: 1.5rem var(--spacing-120px);
    font-size: 0.75rem;
  }
}