:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --ok: #16a34a;
  --warn: #d97706;
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
body { display: flex; flex-direction: column; }

.hidden { display: none !important; }

/* ============== Header ============== */
.app-header {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .75rem 1.25rem; background: #fff; border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 5;
}
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.1rem; }
.brand .logo { font-size: 1.4rem; color: var(--primary); }
.tabs { display: flex; gap: .25rem; flex: 1; }
.tab {
  background: transparent; border: 0; padding: .55rem 1rem; font-size: .95rem;
  border-radius: 8px; cursor: pointer; color: var(--muted); font-weight: 500;
}
.tab:hover { background: #eef2ff; color: var(--text); }
.tab[aria-selected="true"] { background: var(--primary); color: #fff; }
.header-status { display: flex; align-items: center; gap: .5rem; color: var(--muted); font-size: .9rem;
  background: transparent; border: 1px solid transparent; border-radius: 999px; padding: .25rem .6rem;
  cursor: pointer; font-family: inherit; }
.header-status:hover { border-color: var(--border); background: rgba(255,255,255,.04); }
.header-status.is-running { color: var(--warn); font-weight: 600; }
.header-user { display: flex; align-items: center; gap: .5rem; }
.user-badge {
  display: inline-flex; align-items: center; gap: .35rem;
  background: #eef2ff; color: var(--primary);
  padding: .25rem .65rem; border-radius: 999px;
  font-size: .82rem; font-weight: 600;
  max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: #9ca3af; }
.dot-green { background: var(--ok); }
.dot-amber { background: var(--warn); animation: pulse 1.4s infinite; }
.dot-red   { background: var(--danger); }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .4 } }

/* ============== Main layout ============== */
.app-main { flex: 1; overflow: auto; padding: 1.5rem; }
.tab-panel { max-width: 1400px; margin: 0 auto; }
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem;
}
.panel-header h2 { margin: 0; font-size: 1.5rem; }
.panel-header > div { display: flex; gap: .5rem; }

/* ============== Buttons / inputs ============== */
.btn {
  background: #fff; border: 1px solid var(--border); padding: .5rem .9rem;
  border-radius: 8px; cursor: pointer; font-size: .9rem; color: var(--text);
  transition: background .15s, border-color .15s;
}
.btn:hover { background: #f9fafb; border-color: #d1d5db; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger  { background: var(--danger);  color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); }
.btn-ghost   { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: #eef2ff; color: var(--primary); border-color: transparent; }
.input {
  border: 1px solid var(--border); background: #fff; border-radius: 8px;
  padding: .5rem .7rem; font-size: .9rem; min-width: 0;
}
.input:focus { outline: 2px solid #93c5fd; outline-offset: -1px; border-color: var(--primary); }
.input.grow, .btn.grow { flex: 1; }
.link { background: none; border: 0; color: var(--primary); cursor: pointer; padding: 0; font: inherit; text-decoration: underline; }
.muted { color: var(--muted); }
.small { font-size: .8rem; }

/* ============== Templates grid ============== */
.template-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.template-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: .5rem;
  transition: transform .12s, box-shadow .12s;
}
.template-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,0.08); }
.template-card h3 { margin: 0; font-size: 1.05rem; }
.template-card .meta { font-size: .8rem; color: var(--muted); }
.template-card .actions { display: flex; gap: .5rem; margin-top: auto; }

/* ============== Editor (GrapesJS) ============== */
.editor-toolbar {
  display: flex; gap: .5rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap;
}

/* The GrapesJS host element. It needs a defined height — GrapesJS measures
   the container on init and a 0-height container yields a 0-height editor.
   We give it the full remaining viewport. */
.grapes-host {
  height: calc(100vh - 220px);
  min-height: 480px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}

/* Re-tint GrapesJS 0.23's blue primary to match the rest of the app */
.gjs-editor { color: var(--text); }
.gjs-editor .gjs-pn-btn.gjs-pn-active,
.gjs-editor .gjs-pn-btn:hover {
  color: var(--primary) !important;
}
.gjs-editor .gjs-block { border-color: var(--border) !important; }
.gjs-editor .gjs-block:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, .15) !important;
}

/* Modal for the "show compiled HTML" feature. */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal {
  background: #fff; border-radius: var(--radius);
  width: min(900px, 90vw); max-height: 85vh;
  display: flex; flex-direction: column;
  box-shadow: 0 20px 50px rgba(0,0,0,.3);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.modal-body { flex: 1; overflow: auto; padding: 1rem; }
.modal-body pre {
  margin: 0; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px; line-height: 1.45; white-space: pre-wrap; word-break: break-word;
}
.modal-footer {
  display: flex; gap: .5rem; justify-content: flex-end;
  padding: .75rem 1rem; border-top: 1px solid var(--border);
}
/* ============== Recipients ============== */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; margin-bottom: 1rem; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem; text-align: center; box-shadow: var(--shadow);
}
.stat-num { font-size: 1.8rem; font-weight: 700; }
.stat-lbl { color: var(--muted); font-size: .85rem; }

.dropzone {
  border: 2px dashed #cbd5e1; border-radius: var(--radius); padding: 1.5rem; text-align: center;
  background: #fafbff; margin-bottom: 1rem; transition: background .15s, border-color .15s;
}
.dropzone.drag { background: #eef2ff; border-color: var(--primary); }
.dropzone p { margin: .25rem 0; }
.upload-result { margin-top: .75rem; font-size: .9rem; }

.toolbar-row { display: flex; gap: .5rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
.toolbar-row .input { min-width: 200px; }
.toolbar-row .input:not(.grow) { width: auto; }

.table-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.data-table th, .data-table td { padding: .55rem .75rem; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { background: #f9fafb; font-weight: 600; position: sticky; top: 0; }
.data-table tr:hover td { background: #fafbff; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: .75rem; }
.badge-sent { background: #dcfce7; color: #166534; }
.badge-failed { background: #fee2e2; color: #991b1b; }
.badge-excluded { background: #fef3c7; color: #92400e; }

.pager { display: flex; gap: .5rem; align-items: center; justify-content: center; margin-top: 1rem; }

/* ============== Send ============== */
.send-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 .75rem; font-size: 1.05rem; }
.card .row { display: flex; gap: .5rem; align-items: center; margin: .5rem 0; }
.card .input { width: 100%; }
.card .row .input.grow { width: auto; flex: 1; }
.big-num { font-size: 2rem; font-weight: 700; margin-right: .5rem; }
.progress { margin-top: 1rem; }
.progress-bar { width: 100%; height: 10px; background: #e5e7eb; border-radius: 999px; overflow: hidden; }
.progress-fill { width: 0%; height: 100%; background: var(--primary); transition: width .2s; }
.log { list-style: none; padding: 0; margin: .75rem 0 0; max-height: 180px; overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .8rem; }
.log li { padding: 2px 0; border-bottom: 1px dashed var(--border); color: var(--muted); }
.log li.err { color: var(--danger); }
.log li.ok  { color: var(--ok); }
.log li.warn { color: var(--warn); }

.job-list { list-style: none; padding: 0; margin: 0; max-height: 240px; overflow: auto; }
.job-list li { padding: .5rem 0; border-bottom: 1px dashed var(--border); display: flex; gap: .5rem; }
.job-list .job-id { font-family: ui-monospace, SFMono-Regular, monospace; font-size: .8rem; color: var(--muted); }
.job-list .job-status { padding: 1px 8px; border-radius: 999px; font-size: .75rem; }
.job-list .job-status.completed { background: #dcfce7; color: #166534; }
.job-list .job-status.failed    { background: #fee2e2; color: #991b1b; }
.job-list .job-status.cancelled { background: #fef3c7; color: #92400e; }
.job-list .job-status.running   { background: #dbeafe; color: #1e40af; }

/* ============== Settings ============== */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }
.smtp-status { display: flex; align-items: center; gap: .5rem; font-weight: 600; font-size: 1.05rem; margin-bottom: .5rem; }
.kv-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.kv-table th, .kv-table td { text-align: left; padding: .4rem .5rem; border-bottom: 1px dashed var(--border); vertical-align: top; }
.kv-table th { color: var(--muted); font-weight: 500; white-space: nowrap; width: 45%; }
.kv-table td { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; word-break: break-word; }

/* ============== Toast ============== */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem; background: #111827; color: #fff;
  padding: .75rem 1rem; border-radius: 8px; box-shadow: 0 6px 24px rgba(0,0,0,.25);
  max-width: 360px; z-index: 50; transition: opacity .2s, transform .2s;
}
.toast.err  { background: var(--danger); }
.toast.ok   { background: var(--ok); }

/* Inline status text (used in modals / forms) */
.muted.small.error   { color: var(--danger); }
.muted.small.success { color: var(--ok); }