/* ══════════════════════════════════════════════════
   AiMe Design System — styles.css
   Single source of truth for all 8 pages
   Sprint 3 · April 2026
   ══════════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;
  --color-primary-muted: rgba(99,102,241,0.12);
  --color-primary-glow: rgba(99,102,241,0.25);
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;

  --color-bg: #0f172a;
  --color-bg-deep: #0b1220;
  --color-surface: #1e293b;
  --color-surface-hover: #263348;
  --color-border: #334155;
  --color-border-hover: #475569;

  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-text-link: #818cf8;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --font-stack: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;

  --transition: 0.2s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);

  --color-text-light: #e2e8f0;
  --color-accent-purple: #8b5cf6;
  --color-primary-light: #c7d2fe;
  --color-overlay: rgba(0,0,0,0.8);
  --color-overlay-heavy: rgba(0,0,0,0.93);
  --color-bg-overlay: rgba(15,23,42,0.8);
  --color-surface-overlay: rgba(30,41,59,0.5);
  --color-success-muted: rgba(16,185,129,0.25);
  --color-success-deep: #064e3b;
  --color-error-deep: #450a0a;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-stack);
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text-muted);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4 {
  color: var(--color-text);
  margin: 0 0 0.5em;
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }

a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary); }

img { max-width: 100%; height: auto; }

/* ── Nav Bar ── */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.nav a {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav a:hover {
  color: var(--color-text);
  background: var(--color-primary-muted);
}

.nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-muted);
  font-weight: 600;
}

.nav-brand {
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  color: var(--color-primary) !important;
  margin-right: auto;
  padding: 6px 4px !important;
  letter-spacing: 0.02em;
}
.nav-brand:hover {
  opacity: 0.85;
  background: transparent !important;
}

/* ── Cards ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-sm);
}

.card h2, .card h3 { color: var(--color-text); }
.card p { color: var(--color-text-muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: var(--font-stack);
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: white;
  box-shadow: 0 0 16px var(--color-primary-glow);
}

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

.btn-success {
  background: var(--color-success);
  color: white;
}
.btn-success:hover { filter: brightness(1.1); }

.btn-danger {
  background: transparent;
  border: 1px solid var(--color-error);
  color: var(--color-error);
}
.btn-danger:hover {
  background: var(--color-error);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 8px 14px;
}
.btn-ghost:hover {
  background: var(--color-primary-muted);
  color: var(--color-text);
}

/* ── Badges ── */
.badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-lg);
  font-weight: 600;
}

.badge-primary { background: var(--color-primary-muted); color: var(--color-text-link); }
.badge-success { background: rgba(16,185,129,0.12); color: var(--color-success); }
.badge-error { background: rgba(239,68,68,0.12); color: var(--color-error); }
.badge-warning { background: rgba(245,158,11,0.12); color: var(--color-warning); }

/* ── Forms ── */
.input {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  outline: none;
  font-family: var(--font-stack);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-muted);
}
.input::placeholder { color: var(--color-text-dim); }

textarea.input {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

/* ── Status Indicators ── */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

.status-online { background: var(--color-success); box-shadow: 0 0 6px rgba(16,185,129,0.4); }
.status-offline { background: var(--color-error); box-shadow: 0 0 6px rgba(239,68,68,0.4); }

/* ── Footer ── */
.site-footer {
  margin-top: auto;
  padding: 20px;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-dim);
  font-size: 0.75rem;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-inner a {
  color: var(--color-text-dim);
  transition: color var(--transition);
}
.footer-inner a:hover { color: var(--color-primary); }

/* ── Chart / Table (preserved) ── */
.subtitle { color: var(--color-text-muted); margin-bottom: 12px; }
.controls { margin: 12px 0; }
.controls input { width: 60px; margin-left: 6px; padding: 4px; }
.chart-wrap {
  max-width: 1000px;
  margin: 12px 0;
  background: rgba(255,255,255,0.02);
  padding: 12px;
  border-radius: var(--radius-md);
  height: 420px;
}

table { width: 100%; border-collapse: collapse; margin-top: 12px; }
thead th {
  background: var(--color-bg-deep);
  padding: 8px 12px;
  text-align: left;
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 600;
}
tbody td {
  padding: 8px 12px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
}
tbody tr:hover { background: rgba(255,255,255,0.02); }

/* ── Utility ── */
.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-error { color: var(--color-error) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-dim { color: var(--color-text-dim) !important; }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }

/* ── Hide SWA auto-injected InstrumentationKey text ── */
body > :first-child:not(nav):not(.nav):not(header):not(main):not(div):not(section):not(footer) {
  display: none !important;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav {
    padding: 8px 12px;
    gap: 2px;
  }
  .nav a {
    font-size: 0.75rem;
    padding: 5px 8px;
  }
  .nav-brand { font-size: 1rem !important; }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .card { padding: 14px; }

  h1 { font-size: 1.3rem; }
  h2 { font-size: 1.05rem; }
}

@media (max-width: 480px) {
  .nav a:not(.nav-brand) {
    font-size: 0.7rem;
    padding: 4px 6px;
  }

  h1 { font-size: 1.15rem; }
  h2 { font-size: 0.95rem; }

  .btn {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
}

/* ── Hamburger Toggle ── */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: transparent; border: none; cursor: pointer; padding: 6px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--color-text-muted); border-radius: 2px; transition: all 0.3s ease;
}
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; transform: translateX(-20px); }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Nav Links Wrapper ── */
.nav-links { display: flex; align-items: center; gap: 4px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav { padding: 10px 16px; }
  .nav-toggle { display: flex; }
  .nav-links {
    display: none; flex-direction: column; flex-basis: 100%;
    padding-top: 12px; gap: 2px;
  }
  .nav.open .nav-links { display: flex; }
  .nav-links a {
    width: 100%; padding: 10px 14px !important;
    font-size: 0.9rem !important; border-radius: var(--radius-sm);
  }
  .nav-brand { font-size: 1.05rem !important; }
  .footer-inner { flex-direction: column; text-align: center; }
  .card { padding: 14px; }
  h1 { font-size: 1.3rem; }
  h2 { font-size: 1.05rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.15rem; }
  h2 { font-size: 0.95rem; }
  .btn { padding: 8px 14px; font-size: 0.8rem; }
}