@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Syne:wght@400;600;700;800&display=swap');

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

:root {
  --bg:        #0d0d0d;
  --surface:   #161616;
  --border:    #2a2a2a;
  --amber:     #f59e0b;
  --amber-dim: #92400e;
  --text:      #e8e8e8;
  --muted:     #666;
  --danger:    #ef4444;
  --success:   #22c55e;
  --radius:    4px;
  --mono:      'IBM Plex Mono', monospace;
  --sans:      'Syne', sans-serif;
}

html, body { height: 100%; background: var(--bg); color: var(--text); font-family: var(--sans); }

/* ── Utilities ────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Page shell ───────────────────────────────── */
.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, #1c1200 0%, transparent 70%),
    var(--bg);
}

/* ── Card ─────────────────────────────────────── */
.card {
  width: 100%;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
}

.card-title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.card-sub {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

/* ── Form ─────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.25rem; }

label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

input[type="email"],
input[type="password"],
input[type="text"],
textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.875rem;
  padding: 0.65rem 0.9rem;
  transition: border-color 0.15s;
  width: 100%;
  resize: vertical;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--amber);
}

/* ── Buttons ──────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--amber);
  color: #000;
  width: 100%;
}
.btn-primary:hover:not(:disabled) { opacity: 0.88; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid #3a1a1a;
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
}
.btn-danger:hover { background: #1a0000; border-color: var(--danger); }

/* ── Feedback ─────────────────────────────────── */
.error-msg {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--danger);
  background: #1a0000;
  border: 1px solid #3a0000;
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
}

.success-msg {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--success);
  background: #001a00;
  border: 1px solid #003a00;
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
}

/* ── Link ─────────────────────────────────────── */
.link {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--amber);
  text-decoration: none;
  text-align: center;
  display: block;
  margin-top: 1.25rem;
}
.link:hover { text-decoration: underline; }

/* ── Dashboard layout ─────────────────────────── */
.dashboard {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.topbar-brand {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.topbar-brand span {
  color: var(--amber);
}

.topbar-user {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-content {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

/* ── Notes ────────────────────────────────────── */
.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber-dim);
  margin-bottom: 1rem;
}

.note-form {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
  align-items: flex-end;
}

.note-form textarea {
  flex: 1;
  min-height: 72px;
}

.note-form .btn-primary {
  width: auto;
  white-space: nowrap;
  align-self: flex-end;
}

.notes-list { display: flex; flex-direction: column; gap: 0.75rem; }

.note-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.note-body {
  font-size: 0.875rem;
  line-height: 1.6;
  flex: 1;
  word-break: break-word;
  white-space: pre-wrap;
}

.note-time {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

.empty-state {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  padding: 3rem 0;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ── Stack badge ──────────────────────────────── */
.stack-badge {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.badge {
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  background: #1a1a1a;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.active {
  border-color: var(--amber-dim);
  color: var(--amber);
}