/* Shared by every page with the sidebar layout. Page-specific rules stay in each page's <style>. */

/* --- CSS VARIABLES (Colors) --- */
:root {
  --bg-color: #dcd4cb;         /* Main background */
  --box-bg: #e8e1d9;           /* Container background */
  --border-color: #b5aea5;     /* Borders */
  --text-color: #4a3e35;       /* Main text */
  --link-color: #7d5a44;       /* Links */
  --select-bg: #d6cfc7;        /* Theme dropdown background */
  --status-bg: #ece5dd;        /* Status box background */
  --header-font: 'JetBrains Mono', monospace;
  --body-font: 'JetBrains Mono', monospace;
}

body.dark {
  --bg-color: #1e1c1a;
  --box-bg: #28241f;
  --border-color: #4a423a;
  --text-color: #d8cfc2;
  --link-color: #d9a26c;
  --select-bg: #332e28;
  --status-bg: #2c2823;
}

/* --- RESET & BASIC SETUP --- */
body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--body-font);
  margin: 0;
  padding: 20px;
  font-size: 14px;
  line-height: 1.4;
}

a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 1px dotted var(--link-color);
}

/* --- LAYOUT GRID --- */
.container {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
}

@media (max-width: 700px) {
  .container {
    grid-template-columns: 1fr;
  }

  main {
    order: 1;
  }

  aside {
    order: 2;
  }
}

/* --- GENERAL BOX STYLES --- */
.box {
  background-color: var(--box-bg);
  border: 1px solid var(--border-color);
  padding: 10px;
  margin-bottom: 20px;
  box-shadow: 1px 1px 0px rgba(0,0,0,0.05);
}

hr.dashed {
  border: none;
  border-top: 1px dashed var(--border-color);
  margin: 10px 0;
}

/* --- SIDEBAR STYLES --- */
.sidebar-section h3 {
  border-bottom: 3px double var(--border-color);
  padding-bottom: 5px;
  margin-bottom: 10px;
  font-size: 1.2em;
}

.theme-select {
  width: 100%;
  padding: 5px;
  background: var(--select-bg);
  border: 1px solid var(--border-color);
  font-family: var(--body-font);
  color: var(--text-color);
}

.nav-group {
  text-align: center;
  margin-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.nav-group:last-child {
  border-bottom: none;
}

.nav-header {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
}

.nav-link {
  display: block;
  padding: 2px 0;
}

/* Buttons */
.buttons-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

/* Decorative waves at bottom left */
.waves {
  height: 100px;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 5px,
    var(--border-color) 6px,
    transparent 7px
  );
  opacity: 0.2;
}

/* Mobile notice modal */
.mobile-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.mobile-modal-overlay.visible {
  display: flex;
}

.mobile-modal {
  background: var(--box-bg);
  border: 1px solid var(--border-color);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.15);
  padding: 20px;
  max-width: 300px;
  text-align: center;
}

.mobile-modal p {
  margin: 10px 0 15px 0;
  font-size: 0.9em;
}

.mobile-modal button {
  background: var(--select-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  font-family: var(--body-font);
  font-weight: bold;
  padding: 8px 16px;
  cursor: var(--cursor-pointer);
}

.mobile-modal button:hover {
  background: var(--border-color);
}