:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --border: #262626;
  --text: #f5f5f5;
  --muted: #8a8a8a;
  --accent: #ffffff;
  --danger: #f87171;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1rem 5rem;
}

/* --- Nav --- */

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

nav .brand {
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.02em;
}

nav .links {
  display: flex;
  gap: 1.25rem;
  flex: 1;
}

nav .links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.15s;
}

nav .links a:hover,
nav .links a.active { color: var(--text); }

.logout-form { margin-left: auto; }

/* --- Typography --- */

h1 {
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

h2 { font-size: 1.05rem; font-weight: 600; }

a { color: var(--text); }
a:hover { color: var(--muted); }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.error { color: var(--danger); margin: 0.75rem 0; font-size: 0.9rem; }
.notice {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  margin-bottom: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.danger { color: var(--danger); }

/* --- Forms --- */

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  padding: 0.65rem 0.85rem;
  outline: none;
  transition: border-color 0.15s;
}

input:focus, textarea:focus { border-color: #525252; }

textarea {
  min-height: 180px;
  resize: vertical;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.9rem;
  line-height: 1.7;
}

button {
  font: inherit;
  cursor: pointer;
}

button[type="submit"]:not(.link-button):not(.checkbox) {
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  font-weight: 500;
  font-size: 0.9rem;
  transition: opacity 0.15s;
}

button[type="submit"]:not(.link-button):not(.checkbox):hover { opacity: 0.85; }

.link-button {
  background: none;
  border: none;
  color: var(--muted);
  padding: 0;
  font-size: 0.9rem;
}
.link-button:hover { color: var(--text); }

.entry-form { margin: 1.5rem 0 2.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.form-row { display: flex; align-items: center; gap: 1rem; }

.inline-form { display: flex; gap: 0.6rem; margin: 1.5rem 0 2rem; }
.inline-form input { flex: 1; }
.inline { display: inline; }

/* --- Auth --- */

.auth-box {
  max-width: 340px;
  margin: 14vh auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.brand-large { font-size: 2rem; }

.auth-box form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

/* --- Log entries & pages --- */

.entry {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
}

.entry-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.actions { display: flex; gap: 0.9rem; align-items: baseline; }

.page-list { list-style: none; }
.page-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}
.page-list a { text-decoration: none; font-weight: 500; }
.page-list a:hover { text-decoration: underline; }

/* --- Rendered markdown --- */

.rendered { overflow-wrap: break-word; }
.rendered > * + * { margin-top: 0.8em; }
.rendered h1 { font-size: 1.3rem; }
.rendered h2 { font-size: 1.15rem; }
.rendered h3 { font-size: 1rem; }
.rendered ul, .rendered ol { padding-left: 1.4em; }
.rendered blockquote {
  border-left: 2px solid var(--border);
  padding-left: 1em;
  color: var(--muted);
}
.rendered code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.85em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}
.rendered pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1em;
  overflow-x: auto;
}
.rendered pre code { background: none; border: none; padding: 0; }
.rendered table { border-collapse: collapse; width: 100%; }
.rendered th, .rendered td {
  border: 1px solid var(--border);
  padding: 0.4em 0.7em;
  text-align: left;
}
.rendered hr { border: none; border-top: 1px solid var(--border); }
.rendered img { max-width: 100%; }

/* --- Todos --- */

.todo-list { list-style: none; }
.todo-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
}

.checkbox {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  border: 1px solid #525252;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 0.8rem;
  line-height: 1;
  transition: border-color 0.15s;
}
.checkbox:hover { border-color: var(--text); }

.todo-text { flex: 1; }
.todo-list li.done .todo-text {
  color: var(--muted);
  text-decoration: line-through;
}