*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --bg: #09090b; --bg-1: #0f1014; --bg-2: #15161c; --bg-3: #1c1d25;
    --bg-hover: #24252e; --bg-active: #2a2b36;
    --text: #ededf4; --text-2: #a0a0b8; --text-3: #6a6a80;
    --accent: #34d399; --accent-glow: rgba(52,211,153,0.2);
    --accent-2: #6ee7b7;
    --green: #22c55e; --red: #ef4444; --blue: #3b82f6; --orange: #f59e0b; --purple: #a78bfa; --cyan: #06b6d4; --pink: #ec4899;
    --border: #1e2a24; --border-focus: #34d399;
    --radius: 8px;
    --gradient-1: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    --gradient-2: linear-gradient(135deg, #06b6d4 0%, #34d399 100%);
}
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; overflow: hidden; }
::selection { background: rgba(52,211,153,0.3); }

/* Layout */
.app { display: flex; height: 100vh; }
.app.hidden { display: none; }
.sidebar { width: 240px; background: var(--bg-1); border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar-brand { padding: 20px; font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 0.8rem; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: 3px; border-bottom: 1px solid var(--border); }
.sidebar-nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.sidebar-section { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: var(--text-3); letter-spacing: 2px; text-transform: uppercase; padding: 16px 12px 6px; }
.sidebar-divider { height: 1px; background: var(--border); margin: 8px 12px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: var(--radius); color: var(--text-2); font-size: 0.85rem; cursor: pointer; transition: all 0.15s; }
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active { background: var(--bg-active); color: var(--accent); }
.nav-item .icon { width: 18px; text-align: center; font-size: 0.9rem; }
.nav-item .badge { margin-left: auto; background: var(--bg-3); color: var(--text-3); font-size: 0.65rem; padding: 2px 6px; border-radius: 3px; font-family: 'JetBrains Mono', monospace; }
.nav-item .badge.unread { background: rgba(52,211,153,0.15); color: var(--accent); }
.mailbox-dot { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }
.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); }

/* Main content */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar { height: 48px; border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 24px; gap: 16px; flex-shrink: 0; background: var(--bg-1); }
.topbar-title { font-family: 'JetBrains Mono', monospace; font-weight: 600; font-size: 0.85rem; letter-spacing: 1px; }
.topbar-actions { margin-left: auto; display: flex; gap: 8px; }
.content { flex: 1; overflow-y: auto; padding: 24px; }
.hamburger { display: none; }

/* Buttons */
.btn { padding: 8px 20px; border-radius: 4px; font-family: 'JetBrains Mono', monospace; font-weight: 600; font-size: 0.75rem; cursor: pointer; letter-spacing: 1px; transition: all 0.15s; border: 1px solid var(--border); background: none; color: var(--text-2); }
.btn-primary { background: var(--gradient-1); color: #000; font-weight: 700; border-color: var(--accent); }
.btn-primary:hover { box-shadow: 0 0 20px var(--accent-glow); transform: translateY(-1px); }
.btn-ghost { background: none; color: var(--text-2); }
.btn-ghost:hover { border-color: var(--text-2); }
.btn-danger { background: none; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 0.65rem; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; transition: all 0.15s; position: relative; overflow: hidden; }
.stat-card:hover { border-color: var(--accent); box-shadow: 0 0 20px rgba(52,211,153,0.08); }
.stat-card .color-bar { position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.stat-label { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; }
.stat-value { font-family: 'JetBrains Mono', monospace; font-size: 1.6rem; font-weight: 700; }
.stat-sub { font-size: 0.7rem; color: var(--text-3); margin-top: 4px; font-family: 'JetBrains Mono', monospace; }

/* Section titles */
.section-title { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-2); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* Tab bar */
.tab-bar { display: flex; gap: 2px; margin-bottom: 16px; background: var(--bg-1); border-radius: 6px; padding: 3px; border: 1px solid var(--border); width: fit-content; }
.tab-btn { padding: 6px 16px; background: none; border: none; border-radius: 4px; color: var(--text-3); font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; cursor: pointer; transition: all 0.15s; letter-spacing: 0.5px; }
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: var(--bg-3); color: var(--accent); }
.tab-btn .count { margin-left: 4px; font-size: 0.6rem; opacity: 0.6; }

/* Filter bar */
.filter-bar { display: flex; gap: 10px; margin-bottom: 16px; align-items: center; flex-wrap: wrap; }
.filter-bar input, .filter-bar select { padding: 6px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 4px; color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; outline: none; }
.filter-bar input:focus, .filter-bar select:focus { border-color: var(--accent); }
.search-input { min-width: 220px; }

/* Message table */
.msg-table { width: 100%; border-collapse: collapse; }
.msg-table th { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.msg-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 0.82rem; vertical-align: middle; }
.msg-table tr { cursor: pointer; transition: background 0.1s; }
.msg-table tbody tr:hover { background: var(--bg-hover); }
.msg-table tbody tr:nth-child(even) { background: var(--bg-1); }
.msg-table tbody tr:nth-child(even):hover { background: var(--bg-hover); }
.msg-table tr.unread td { font-weight: 600; }
.msg-table tr.archived td { color: var(--text-3); }

/* Status dot */
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.status-dot.unread { background: var(--accent); }
.status-dot.read { background: var(--text-3); }
.status-dot.archived { background: var(--bg-3); }
.status-dot.sent { background: var(--blue); }

/* Mailbox badge in table */
.mb-badge { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 0.6rem; font-family: 'JetBrains Mono', monospace; font-weight: 600; letter-spacing: 0.5px; background: var(--bg-3); color: var(--text-2); white-space: nowrap; }

/* Attachment icon */
.attach-icon { color: var(--text-3); font-size: 0.75rem; }
.attach-icon.has { color: var(--orange); }

/* Subject truncation */
.msg-subject { max-width: 300px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }

/* Checkbox in table */
.row-check { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }

/* Bulk actions bar */
.bulk-bar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; background: var(--bg-2); border: 1px solid var(--accent); border-radius: 6px; margin-bottom: 12px; }
.bulk-bar .count { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--accent); }

/* Direction arrow */
.dir-arrow { font-size: 0.9rem; }
.dir-arrow.in { color: var(--green); }
.dir-arrow.out { color: var(--blue); }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 100; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
.modal-overlay.open { display: flex; }
.modal { background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px; padding: 28px; width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto; box-shadow: 0 0 80px rgba(0,0,0,0.5), 0 0 40px rgba(52,211,153,0.05); }
.modal h3 { font-family: 'JetBrains Mono', monospace; color: var(--accent); font-size: 0.95rem; letter-spacing: 2px; margin-bottom: 20px; }
.modal label { display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; margin-top: 14px; }
.modal input, .modal select, .modal textarea { width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 4px; color: var(--text); font-family: 'Inter', sans-serif; font-size: 0.85rem; outline: none; }
.modal input:focus, .modal select:focus, .modal textarea:focus { border-color: var(--accent); }
.modal textarea { min-height: 80px; resize: vertical; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; line-height: 1.6; }
.modal-row { display: flex; gap: 12px; }
.modal-row > * { flex: 1; }
.modal-actions { display: flex; gap: 10px; margin-top: 24px; justify-content: flex-end; }

/* Message detail modal */
.msg-detail-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.msg-detail-subject { font-size: 1.1rem; font-weight: 600; flex: 1; }
.msg-detail-row { display: flex; gap: 16px; margin-bottom: 8px; font-size: 0.82rem; }
.msg-detail-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; min-width: 80px; }
.msg-detail-value { color: var(--text); }
.msg-detail-section { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }

/* Attachment list */
.attach-list { list-style: none; }
.attach-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; margin-bottom: 6px; }
.attach-item:hover { border-color: var(--accent); }
.attach-name { flex: 1; font-size: 0.82rem; }
.attach-size { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); }
.attach-dl { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 0.8rem; padding: 4px 8px; border-radius: 4px; }
.attach-dl:hover { background: rgba(52,211,153,0.1); }

/* Status badge */
.status-badge { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 0.6rem; font-family: 'JetBrains Mono', monospace; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; }
.status-delivered { color: var(--green); border: 1px solid var(--green); }
.status-accepted { color: var(--cyan); border: 1px solid var(--cyan); }
.status-unread { color: var(--accent); border: 1px solid var(--accent); }
.status-read { color: var(--text-3); border: 1px solid var(--text-3); }
.status-sent { color: var(--blue); border: 1px solid var(--blue); }
.status-error { color: var(--red); border: 1px solid var(--red); }

/* Send form */
.send-form { max-width: 700px; }
.send-form label { display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; margin-top: 16px; }
.send-form input, .send-form select, .send-form textarea { width: 100%; padding: 10px 12px; background: var(--bg-1); border: 1px solid var(--border); border-radius: 4px; color: var(--text); font-size: 0.85rem; outline: none; }
.send-form input:focus, .send-form select:focus, .send-form textarea:focus { border-color: var(--accent); }
.send-form textarea { min-height: 100px; resize: vertical; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; line-height: 1.6; }

/* Recipient search dropdown */
.recipient-dropdown { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-2); border: 1px solid var(--border); border-radius: 6px; max-height: 200px; overflow-y: auto; z-index: 50; box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.recipient-item { padding: 8px 12px; cursor: pointer; font-size: 0.82rem; transition: background 0.1s; }
.recipient-item:hover { background: var(--bg-hover); }
.recipient-item .rid { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); }

/* File upload */
.upload-area { border: 2px dashed var(--border); border-radius: 8px; padding: 24px; text-align: center; color: var(--text-3); font-size: 0.82rem; cursor: pointer; transition: all 0.15s; margin-top: 8px; }
.upload-area:hover { border-color: var(--accent); color: var(--accent); }
.upload-area.dragover { border-color: var(--accent); background: rgba(52,211,153,0.05); }
.file-list { margin-top: 8px; }
.file-item { display: flex; align-items: center; gap: 8px; padding: 6px 10px; background: var(--bg); border-radius: 4px; margin-bottom: 4px; font-size: 0.8rem; }
.file-item .remove { color: var(--red); cursor: pointer; margin-left: auto; font-size: 0.75rem; }

/* User cards */
.user-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.user-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; transition: all 0.15s; cursor: pointer; }
.user-card:hover { border-color: var(--accent); }
.user-name { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.user-role { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 1px; }
.user-meta { font-size: 0.75rem; color: var(--text-2); margin-top: 8px; }
.user-mailboxes { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.user-mb-tag { padding: 2px 8px; background: var(--bg-3); border-radius: 3px; font-size: 0.6rem; font-family: 'JetBrains Mono', monospace; color: var(--text-2); }

/* Audit table */
.audit-table { width: 100%; border-collapse: collapse; }
.audit-table th { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.audit-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 0.8rem; }
.audit-table tr:nth-child(even) { background: var(--bg-1); }

/* Empty state */
.empty { text-align: center; padding: 48px 20px; color: var(--text-3); font-size: 0.85rem; }

/* Toast */
.toast { position: fixed; bottom: 24px; right: 24px; padding: 10px 20px; background: var(--accent); color: #000; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; font-weight: 600; border-radius: 8px; z-index: 200; opacity: 0; transform: translateY(10px); transition: all 0.25s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateY(0); }

/* Login screen */
.login-screen { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-box { background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px; padding: 48px; width: 100%; max-width: 380px; text-align: center; box-shadow: 0 0 60px rgba(52,211,153,0.05); }
.login-box h1 { font-family: 'JetBrains Mono', monospace; font-size: 1.2rem; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: 3px; margin-bottom: 4px; }
.login-box .sub { font-family: 'JetBrains Mono', monospace; color: var(--text-3); font-size: 0.65rem; margin-bottom: 32px; letter-spacing: 2px; }
.login-box input { width: 100%; padding: 12px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; margin-bottom: 12px; outline: none; text-align: center; letter-spacing: 2px; }
.login-box input:focus { border-color: var(--accent); }
.login-box button { width: 100%; padding: 12px; background: var(--gradient-1); color: #000; border: none; border-radius: 6px; font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 0.8rem; cursor: pointer; letter-spacing: 3px; margin-top: 4px; }
.login-box button:hover { box-shadow: 0 0 20px var(--accent-glow); }
.login-error { color: var(--red); font-size: 0.75rem; margin-top: 8px; display: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-3); }

/* Mobile responsive */
@media (max-width: 768px) {
    .content { padding: 14px; }
    .stat-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .msg-table th:nth-child(n+4), .msg-table td:nth-child(n+4) { display: none; }
    .msg-subject { max-width: 160px; }
    .filter-bar { flex-direction: column; }
    .search-input { min-width: 100%; }
    .modal { margin: 12px; padding: 20px; max-width: calc(100vw - 24px); }
    .user-grid { grid-template-columns: 1fr; }
    .tab-bar { overflow-x: auto; width: 100%; }
    .bulk-bar { flex-wrap: wrap; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
    .msg-table th:nth-child(n+3), .msg-table td:nth-child(n+3) { display: none; }
}

/* Print styles */
@media print {
    body { background: #fff; color: #000; overflow: visible; }
    .sidebar, .topbar, .hamburger, .toast, .bulk-bar, .filter-bar, .tab-bar, .btn, .modal-overlay { display: none !important; }
    .app { display: block; height: auto; }
    .main { display: block; }
    .content { overflow: visible; padding: 0; }
    .msg-table { font-size: 0.75rem; }
    .msg-table th, .msg-table td { border-color: #ccc; padding: 4px 8px; }
    .stat-card { border-color: #ccc; background: #f9f9f9; }
    .status-dot { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}

/* ========== MOBILE ========== */
@media (max-width: 768px) {
    body { overflow: auto; }
    .app { display: flex; flex-direction: row; height: auto; min-height: 100vh; }
    .sidebar { position: fixed; left: -260px; top: 0; bottom: 0; z-index: 90; width: 260px; transition: left 0.25s; }
    .sidebar.mobile-open { left: 0; box-shadow: 20px 0 40px rgba(0,0,0,0.5); }
    .hamburger { display: block; }
    .main { width: 100%; min-height: 100vh; overflow: visible; }
    .content { padding: 12px; overflow: visible; }
    .topbar { padding: 0 12px; gap: 6px; }
    .topbar-title { font-size: 0.75rem; }
    .topbar-actions { gap: 4px; }
    .topbar-actions .btn { padding: 4px 8px; font-size: 0.6rem; }
    .stat-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .stat-card { padding: 10px; }
    .msg-table { font-size: 0.7rem; }
    .msg-table th, .msg-table td { padding: 4px 6px; }
    .modal { max-width: 100% !important; max-height: 95vh; padding: 16px; border-radius: 8px; }
    .modal-row { flex-direction: column; gap: 0; }
    .modal-actions { flex-wrap: wrap; }
    .modal-actions .btn { flex: 1; min-width: 80px; text-align: center; }
}

@media (max-width: 375px) {
    .stat-grid { grid-template-columns: 1fr; }
    .content { padding: 8px; }
}

@media (pointer: coarse) {
    .nav-item { padding: 10px 12px; min-height: 44px; }
    .btn { min-height: 44px; }
    .btn-sm { min-height: 36px; }
    .msg-table tr { min-height: 44px; }
}

@supports (padding: env(safe-area-inset-bottom)) {
    .sidebar-footer { padding-bottom: calc(12px + env(safe-area-inset-bottom)); }
    .toast { bottom: calc(24px + env(safe-area-inset-bottom)); }
}