:root {
  --color-bg: #f0f4f8;
  --color-surface: #ffffff;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-light: #eff6ff;
  --color-text: #1a2b4a;
  --color-text-muted: #6b7a90;
  --color-text-faint: #94a3b8;
  --color-border: #d1d9e6;
  --color-input-bg: #f8fafc;
  --color-error: #e53e3e;
  --color-error-bg: #fef2f2;
  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --radius-card: 12px;
  --radius-input: 8px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

/* ── Login ── */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

/* L'attribut HTML `hidden` doit l'emporter sur `display: flex` ci-dessus,
   sinon l'écran de login reste affiché (en display: flex) même une fois
   masqué en JS après connexion. */
.login-screen[hidden] {
  display: none;
}

.login-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.login-card h1 { font-size: 1.3rem; margin: 0 0 0.3rem; }
.subtitle { font-size: 0.88rem; color: var(--color-text-muted); margin: 0 0 1.8rem; }

label {
  display: block;
  text-align: left;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin: 0.8rem 0 0.4rem;
}

input[type="text"], input[type="password"], input[type="date"] {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-input);
  font-size: 0.95rem;
  background: var(--color-input-bg);
  outline: none;
}

input:focus { border-color: var(--color-primary); background: var(--color-surface); }

.btn-primary {
  width: 100%;
  margin-top: 1.3rem;
  padding: 0.75rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-input);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary:hover { background: var(--color-primary-hover); }

.btn-secondary {
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-input);
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.error-box {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-left: 4px solid var(--color-error);
  border-radius: var(--radius-input);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  text-align: left;
}

/* ── App shell ── */
.app-screen { min-height: 100vh; }

.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.topbar h1 { font-size: 1.1rem; margin: 0; flex-shrink: 0; }

.tabs { display: flex; gap: 0.4rem; flex: 1; }
.tab-btn {
  padding: 0.5rem 1rem;
  background: none;
  border: none;
  border-radius: var(--radius-input);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  cursor: pointer;
}
.tab-btn:hover { background: var(--color-primary-light); color: var(--color-primary); }
.tab-btn.active { background: var(--color-primary); color: #fff; }

.content { max-width: 1000px; margin: 0 auto; padding: 1.5rem; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 1.5rem 1.75rem;
}

/* ── Dashboard ── */
.status-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.status-tile {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 1rem;
}
.status-tile-label { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-text-muted); margin-bottom: 0.4rem; }
.status-tile-value { font-size: 1rem; font-weight: 600; }
.status-ok { color: var(--color-success); }
.status-bad { color: var(--color-error); }
.status-warn { color: #b45309; }

.actions-row { display: flex; gap: 0.6rem; margin-top: 1.2rem; flex-wrap: wrap; }

table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: 0.88rem; }
th, td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-muted); background: var(--color-input-bg); font-size: 0.78rem; text-transform: uppercase; }

/* ── Logs / Browse ── */
.log-content {
  margin-top: 1rem;
  max-height: 500px;
  overflow: auto;
  background: var(--color-input-bg);
  border-radius: var(--radius-input);
  padding: 1rem;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
}

.breadcrumb { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.8rem; }
.breadcrumb a { color: var(--color-primary); text-decoration: none; cursor: pointer; }

.browse-row { display: flex; align-items: center; gap: 0.6rem; padding: 0.5rem 0; border-bottom: 1px solid var(--color-border); }
.browse-row .name { flex: 1; cursor: pointer; }
.browse-row .name.dir { font-weight: 600; color: var(--color-primary); }
.browse-row .size { font-size: 0.78rem; color: var(--color-text-faint); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--color-text);
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 50px;
  font-size: 0.85rem;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  z-index: 100;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }