:root{--bg:#f5f7fb;--panel:rgba(255,255,255,.82);--text:#172033;--muted:#6b7280;--line:#dfe5ef;--primary:#2563eb;--accent:#14b8a6;--danger:#dc2626;--shadow:0 24px 60px rgba(15,23,42,.12)}
[data-theme=dark]{--bg:#111827;--panel:rgba(31,41,55,.82);--text:#f9fafb;--muted:#a8b0bf;--line:#374151;--primary:#60a5fa;--accent:#2dd4bf;--danger:#f87171;--shadow:0 24px 60px rgba(0,0,0,.28)}
*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,var(--bg),#eef6f8);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;min-height:100vh}a{color:inherit;text-decoration:none}
.sidebar{position:fixed;inset:0 auto 0 0;width:260px;padding:24px;background:var(--panel);backdrop-filter:blur(18px);border-right:1px solid var(--line)}.brand{font-size:22px;font-weight:800;margin-bottom:32px}.sidebar nav{display:grid;gap:8px}.sidebar a{padding:12px 14px;border-radius:8px;color:var(--muted)}.sidebar a:hover{background:rgba(37,99,235,.11);color:var(--text)}
.shell{margin-left:260px;padding:28px}.auth-shell{display:grid;place-items:center;min-height:100vh;padding:24px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.topbar h1{margin:3px 0 0;font-size:28px}.top-actions,.actions,.modal-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.actions form{display:inline}
.panel,.card,.login-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);backdrop-filter:blur(18px)}.panel{padding:22px;margin-bottom:22px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.panel h2{margin:0;font-size:20px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:22px}.card{padding:22px}.card span,.muted{color:var(--muted)}.card strong{display:block;font-size:34px;margin-top:8px}
.btn,.icon-btn{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:8px;padding:10px 14px;cursor:pointer;font-weight:700}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:white;border:0}.btn.ghost{background:transparent}.btn.small{padding:7px 10px;font-size:13px}.btn.danger{color:var(--danger)}.icon-btn{width:42px;height:42px;padding:0}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:780px}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.02em}.pill{display:inline-flex;padding:5px 9px;border-radius:999px;background:#e5e7eb;font-size:12px;font-weight:800}.pill.active,.pill.success{background:#dcfce7;color:#166534}.pill.inactive{background:#fee2e2;color:#991b1b}.pill.authentication_error,.pill.connection_error,.pill.timeout,.pill.ssl_error,.pill.port_error,.pill.unknown_error,.pill.validation_error{background:#fee2e2;color:#991b1b}
.stack{display:grid;gap:14px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.wide{grid-column:1/-1}label{display:grid;gap:7px;font-weight:700}input,select,textarea{width:100%;border:1px solid var(--line);background:rgba(255,255,255,.72);color:#111827;border-radius:8px;padding:11px 12px;font:inherit}textarea{resize:vertical}.alert{padding:13px 15px;border-radius:8px;margin-bottom:18px;background:#eff6ff}.alert.danger{background:#fee2e2;color:#991b1b}.alert.success{background:#dcfce7;color:#166534}.alert pre{white-space:pre-wrap;max-height:220px;overflow:auto}
.login-card{width:min(440px,100%);padding:32px}.login-card h1{margin-top:0}.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:grid;place-items:center;padding:24px;z-index:20}.modal[hidden]{display:none}.modal-card{width:min(720px,100%);max-height:92vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:22px}.preview{border:1px dashed var(--line);border-radius:8px;padding:14px;color:var(--muted);min-height:52px}
.mail-preview-shell{overflow:hidden;border-radius:12px;background:#fff;border:1px solid #e5eaf3;color:#172033}.mail-preview-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;color:#fff}.mail-preview-head strong{font-size:18px}.mail-preview-head span{display:inline-grid;place-items:center;min-width:40px;height:40px;padding:0 10px;border-radius:10px;background:rgba(255,255,255,.2);font-weight:800}.mail-preview-body{padding:22px}.mail-preview-body i{display:block;width:74px;height:4px;border-radius:99px;margin-bottom:14px}.mail-preview-body small{color:#64748b;font-weight:800;text-transform:uppercase;font-size:11px}.mail-preview-body h3{margin:8px 0 10px;color:#111827;font-size:21px}.mail-preview-body p{color:#374151;line-height:1.6}.mail-preview-body button{border:0;color:#fff;border-radius:8px;padding:11px 16px;font-weight:800}
[dir=rtl] .sidebar{left:auto;right:0;border-right:0;border-left:1px solid var(--line)}[dir=rtl] .shell{margin-left:0;margin-right:260px}[dir=rtl] th,[dir=rtl] td{text-align:right}
@media (max-width:900px){.sidebar{position:static;width:auto;border-right:0}.shell{margin-left:0;padding:18px}.stats,.form-grid{grid-template-columns:1fr}.topbar{align-items:flex-start}.actions{gap:6px}}