/* ===== Ateleris brand tokens — replace with real values before event ===== */
:root {
  --at-bg:        #0f1117;
  --at-fg:        #f0f0f0;
  --at-accent:    #e8a838;
  --at-accent-dk: #b87d20;
  --at-muted:     #6b7280;
  --at-surface:   #1a1e2b;
  --at-border:    #2d3348;
  --at-radius:    12px;
  --at-gap:       1rem;
  --at-header-h:  56px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; -webkit-text-size-adjust: 100%; }
body {
  background: var(--at-bg);
  color: var(--at-fg);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  line-height: 1.6;
  min-height: 100dvh;
}
a { color: var(--at-accent); }

/* ===== Shell ===== */
.at-header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 0.75rem;
  height: var(--at-header-h);
  padding: 0 1.25rem;
  background: var(--at-surface);
  border-bottom: 1px solid var(--at-border);
}
.at-wordmark {
  font-size: 0.82rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--at-accent);
}
.at-app-title {
  font-size: 0.9rem; color: var(--at-muted);
}
.at-main {
  max-width: 600px; margin: 0 auto;
  padding: 2rem 1.25rem;
  min-height: calc(100dvh - var(--at-header-h));
}

/* ===== Typography ===== */
h1 { font-size: 1.7rem; font-weight: 700; line-height: 1.25; margin-bottom: 0.5rem; }
h2 { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.4rem; }
h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; }
p  { margin-bottom: 1rem; }

/* ===== Buttons ===== */
.at-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 1.5rem;
  border: none; border-radius: var(--at-radius);
  font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none; width: 100%;
}
.at-btn:active { transform: scale(0.97); }
.at-btn--primary { background: var(--at-accent); color: #111; }
.at-btn--primary:hover:not(:disabled) { background: var(--at-accent-dk); }
.at-btn--primary:disabled { opacity: 0.45; cursor: not-allowed; }
.at-btn--ghost {
  background: transparent; color: var(--at-fg);
  border: 1px solid var(--at-border);
}

/* ===== Forms ===== */
.at-field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.25rem; }
.at-label { font-size: 0.875rem; color: var(--at-muted); }
.at-input {
  width: 100%; min-height: 52px; padding: 0 1rem;
  background: var(--at-surface);
  border: 1px solid var(--at-border);
  border-radius: var(--at-radius);
  color: var(--at-fg); font-size: 1.1rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  transition: border-color 0.15s;
}
.at-input:focus { outline: none; border-color: var(--at-accent); }
.at-input::placeholder { color: var(--at-muted); opacity: 1; letter-spacing: normal; text-transform: none; }

/* ===== Cards ===== */
.at-card {
  background: var(--at-surface);
  border: 1px solid var(--at-border);
  border-radius: var(--at-radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

/* ===== Utilities ===== */
.at-muted   { color: var(--at-muted); font-size: 0.9rem; }
.at-accent  { color: var(--at-accent); }
.at-stack   { display: flex; flex-direction: column; gap: var(--at-gap); }
.at-center  { text-align: center; }
.at-error   { color: #f87171; font-size: 0.875rem; }
.at-success { color: #4ade80; }

/* ===== Quest: chapter display ===== */
.at-chapter-num {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--at-accent); margin-bottom: 0.25rem;
}
.at-riddle {
  font-style: italic; color: var(--at-fg);
  border-left: 3px solid var(--at-accent);
  padding-left: 0.875rem; margin: 1.25rem 0;
}

/* ===== Capsule: contribution tiles ===== */
.at-tiles { display: grid; gap: 0.75rem; }
.at-tile {
  padding: 0.875rem 1rem;
  background: var(--at-surface);
  border: 2px solid var(--at-border);
  border-radius: var(--at-radius);
  cursor: pointer; transition: border-color 0.15s;
  user-select: none;
}
.at-tile:hover { border-color: var(--at-muted); }
.at-tile--selected { border-color: var(--at-accent); }
.at-tile__label { font-size: 0.95rem; font-weight: 500; }
.at-tile__desc { font-size: 0.8rem; color: var(--at-muted); margin-top: 0.15rem; }

/* ===== Blazor error UI ===== */
#blazor-error-ui {
  position: fixed; bottom: 0; left: 0; right: 0;
  padding: 0.75rem 1rem;
  background: #7f1d1d; color: #fef2f2;
  font-size: 0.875rem; text-align: center;
  display: none; z-index: 9999;
}
#blazor-error-ui.blazor-error-boundary { display: block; }
.reload { color: #fca5a5; margin-left: 0.5rem; }
.dismiss { cursor: pointer; margin-left: 0.5rem; }