/* ========== Base Styles ========== */
body {
  font-family: 'Merriweather', Georgia, serif;
  font-size: clamp(14px, 1.5vw, 1.5rem); /* 14px to ~18px */
  line-height: 1.7;
  background-color: #bebfc2; /* soft snowy white */
  color: #1c1c1c; /* near-black for high readability */
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

/* ========== Headings ========== */
h1 {
  font-size: clamp(2rem, 5vw, 3.5rem); /* 32px to 56px */
  text-align: center;
  font-weight: normal;
  line-height: 1.2;
  margin: 0 0 0.5em;
  letter-spacing: 0.02em;
  padding: 2.5rem 1rem;

  /* Background image from project images folder (relative to css/) */
  background-image: url('../images/forestbackground.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  /* Slight dark overlay to ensure text contrast on the image */
  background-color: rgba(0, 0, 0, 0.45);
  background-blend-mode: multiply;

  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
  border-radius: 8px;
}

/* ========== Navigation ========== */
.site-header {
  margin: 1.25rem 0 0.5rem;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  justify-content: center;
  padding: 0;
  margin: 0;
}

.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.75rem;
  color: #555;
  background-color: #e0e0e0;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
}

.site-nav a[aria-current="page"],
.site-nav a:hover,
.site-nav a:focus {
  color: #e0e0e0;
  background: #0b66ff; /* stronger accent on hover/focus */
  outline: none;
}

h2 {
  font-size: clamp(1.25rem, 3vw, 2rem); /* 20px to 32px */
  text-align: center;
  font-weight: normal;
  margin-bottom: 1em;
  line-height: 1.4;
}

h3 {
  font-size: clamp(1rem, 2vw, 1.5rem); /* 16px to 24px */
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

/* ========== Poem Layout ========== */
.poem {
  margin-top: 2rem;
  text-align: center;
  justify-content: center;
}

.stanza {
  margin-bottom: 2.5rem;
}

/* Poem section heading */
.poem-heading {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  text-align: center;
  margin: 0.25rem 0 1rem;
  font-weight: 600;
}

.line {
  display: block;
  margin-left: 1rem;
}

/* Hover/focus signpost for poem lines */
.line {
  transition: color 160ms ease, background-color 160ms ease;
}

.line:hover,
.line:focus {
  color: #073d99; /* accent color */
  background-color: rgba(11, 102, 255, 0.06);
  outline: none;
}

/* Improved visible focus for keyboard users */
.line:focus-visible {
  box-shadow: 0 0 0 3px rgba(11, 102, 255, 0.12);
  border-radius: 4px;
}

/* ========== Accessibility Focus Styles ========== */
:focus {
  outline: 2px solid #005f73;
  outline-offset: 4px;
}

/* ========== Footer ========== */
footer {
  /* Make footer span the full viewport width while inside the centered body */
  position: relative;
  left: 50%;
  margin-left: -50vw; /* pull to left edge */
  width: 100vw; /* full viewport width */
  box-sizing: border-box;
  margin-top: 1.6rem;
  font-style: italic;
  text-align: center;
  color: #555;
  background-color: #e0e0e0;
  padding: 1rem;
  border-radius: 0; /* remove rounded corners when full-width */
}

/* Keep page content readable by constraining footer inner text */
footer > * {
  max-width: 800px;
  margin: 0 auto;
}

/* ========== Optional Image Styling ========== */
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin-bottom: 1rem;
}

/* Remove extra gap between poem image and its caption and set default (mobile-first) sizing */
.poem-image img {
  display: block;
  width: 100%;            /* allow image to shrink with viewport */
  height: auto;           /* preserve aspect ratio */
  max-width: 360px;       /* typical mobile/full-width card size */
  max-height: 320px;      /* avoid extremely tall images on small screens */
  margin: 0 auto 0;       /* centered, no extra gap to caption */
  object-fit: cover;      /* crop when necessary while preserving focus */
}

/* Medium screens: allow larger images */
@media (min-width: 600px) {
  .poem-image img {
    max-width: 480px;
    max-height: 400px;
  }
  /* Typography adjustments for medium screens (tablet) */
  body {
    font-size: 1.5rem;
  }
  h1 {
    font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  }
  h2 {
    font-size: 1.5rem;
  }
  h3 {
    font-size: 1.125rem;
  }
  .poem-heading {
    font-size: 1.125rem;
  }
  .line {
    font-size: 1.3rem;
  }
}

/* Desktop / wide viewports: larger images up to poem column width */
@media (min-width: 900px) {
  .poem-image img {
    max-width: 640px;
    max-height: 480px;
  }
  /* Typography adjustments for large screens (desktop) */
  body {
    font-size: 1.5rem;
  }
  h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
  }
  h2 {
    font-size: 1.75rem;
  }
  h3 {
    font-size: 1.25rem;
  }
  .poem-heading {
    font-size: 1.25rem;
  }
  .line {
    font-size: 1.7rem;
  }
}

/* Figure caption for poem images: slightly smaller than body text and italic */
.poem-image {
  margin: 1.5rem 0;
}

.poem-image figcaption {
  font-size: 0.9rem; /* intentionally smaller than body font */
  font-style: italic;
  color: #333; /* slightly lighter than main text */
  text-align: center;
  margin-top: 0.1rem; /* tightened so caption is closer to the image */
}

/* Copy button near poem */
.poem-controls {
  display: flex;
  justify-content: center; /* center the button horizontally */
  align-items: center; /* vertically center if button grows */
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}
.copy-btn {
  background: #0b66ff; /* accent */
  color: #ffffff;
  border: none;
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 160ms ease, transform 120ms ease;
  align-content: center;
}
.copy-btn:hover { background: #0956d1; }
.copy-btn:active { transform: translateY(1px); }
.copy-btn:focus-visible { outline: 3px solid rgba(11,102,255,0.25); outline-offset: 2px; }

/* screen-reader only helper */
.sr-only {
  position: absolute !important;
  height: 1px; width: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap;
  border: 0; padding: 0; margin: -1px;
}