/* ==========================================================================
   AssoGest — Design system
   Identité : le "registre associatif" — tons ledger chaleureux, cachet
   circulaire en guise de logo, chiffres en monospace (façon comptes/reçus).
   ========================================================================== */

:root {
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --color-paper: #F6F5F1;
  --color-surface: #FFFFFF;
  --color-ink: #1C2321;
  --color-ink-soft: #5B6560;
  --color-line: #DEDAD1;

  --color-primary: #1B4B43;
  --color-primary-light: #2F6E5E;
  --color-accent: #E0793C;
  --color-accent-ink: #7A3410;
  --color-success: #3F7D5C;
  --color-warning: #C98A1E;
  --color-danger: #B3432B;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 1px 2px rgba(28, 35, 33, 0.06), 0 8px 24px rgba(28, 35, 33, 0.05);
  --sidebar-width: 264px;
}

[data-theme="dark"] {
  --color-paper: #12211D;
  --color-surface: #16241F;
  --color-ink: #EDEAE3;
  --color-ink-soft: #9AA8A2;
  --color-line: #24352F;

  --color-primary: #4FA98C;
  --color-primary-light: #6BC2A6;
  --color-accent: #F0955E;
  --color-accent-ink: #2A1408;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

.font-mono { font-family: var(--font-mono); }

body {
  font-family: var(--font-body);
  background: var(--color-paper);
  color: var(--color-ink);
  transition: background-color .2s ease, color .2s ease;
}

h1, h2, h3, .brand-name {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

a { color: inherit; }

/* --- Le "cachet" : signature visuelle du logo --- */
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
  position: relative;
}
.seal::before {
  content: "";
  position: absolute;
  inset: 3px;
  border: 1px dotted currentColor;
  border-radius: 50%;
  opacity: 0.5;
}
.seal-lg {
  width: 72px;
  height: 72px;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

/* --- Structure app --- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0 0.5rem 1.5rem;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 1rem;
}
.brand-name {
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color .15s ease, color .15s ease;
}
.nav-link i { font-size: 1.05rem; width: 20px; text-align: center; }
.nav-link:hover:not(.is-disabled) { background: var(--color-paper); color: var(--color-ink); }
.nav-link.active {
  background: var(--color-primary);
  color: #fff;
}
.nav-link.is-disabled { opacity: 0.4; pointer-events: none; }

.nav-divider {
  height: 1px;
  background: var(--color-line);
  margin: 0.75rem 0.5rem;
}

.sidebar-footer {
  border-top: 1px solid var(--color-line);
  padding-top: 1rem;
  display: flex;
  justify-content: flex-end;
}

.theme-toggle {
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  color: var(--color-ink);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color .15s ease;
}
.theme-toggle:hover { background: var(--color-line); }

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}
.topbar-spacer { flex: 1; }
.sidebar-burger {
  border: none;
  background: transparent;
  font-size: 1.4rem;
  color: var(--color-ink);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  border-radius: 999px;
  padding: 0.35rem 0.9rem 0.35rem 0.35rem;
  cursor: pointer;
}
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}
.user-name { font-size: 0.88rem; font-weight: 500; }

.flash-stack { padding: 1rem 2rem 0; }

.content { padding: 2rem; }

.page-header { margin-bottom: 1.75rem; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-ink);
  background: color-mix(in srgb, var(--color-accent) 18%, transparent);
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-soft);
}
.stat-card i {
  font-size: 1.4rem;
  color: var(--color-primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.2;
}
.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-ink-soft);
}

.empty-note {
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* --- Boutons --- */
.btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
}
.btn-accent:hover {
  background: color-mix(in srgb, var(--color-accent) 85%, black);
  border-color: color-mix(in srgb, var(--color-accent) 85%, black);
  color: #fff;
}

/* --- Écran de connexion --- */
.guest-body {
  background: var(--color-paper);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.login-screen { width: 100%; display: flex; justify-content: center; }
.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}
.login-brand { text-align: center; margin-bottom: 1.75rem; }
.login-brand h1 { font-size: 1.5rem; margin: 0 0 0.25rem; }
.login-brand p { color: var(--color-ink-soft); font-size: 0.88rem; margin: 0; }

.error-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.5rem;
  padding: 2rem;
}
.error-screen .btn { margin-top: 1rem; }

/* --- Installateur --- */
.install-card { max-width: 560px; }
.stepper {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  list-style: none;
  padding: 0;
}
.stepper li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  color: var(--color-ink-soft);
}
.stepper li.current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.stepper li.done {
  border-color: var(--color-success);
  color: var(--color-success);
}
.form-hint { font-size: 0.78rem; color: var(--color-ink-soft); margin-top: 0.3rem; }
.recap-list { list-style: none; padding: 0; margin: 0 0 1.25rem; font-size: 0.9rem; }
.recap-list li { display: flex; justify-content: space-between; padding: 0.4rem 0; border-bottom: 1px dashed var(--color-line); }
.recap-list li:last-child { border-bottom: none; }

@media (max-width: 991px) {
  .sidebar {
    position: fixed;
    z-index: 1030;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: var(--shadow-soft);
  }