/* OmnixMailBox styles. Gmail-style layout, responsive (MOB-01),
   WCAG 2.1 AA focus/contrast/reduced-motion (NFR-08). */

:root {
    --blue: #1a56db;
    --blue-dark: #1e429f;
    --bg: #f6f8fc;
    --surface: #ffffff;
    --border: #dfe3eb;
    --text: #1f2733;
    --muted: #5f6b7a;
    --hover: #eef2fb;
    --unread: #f0f5ff;
    --danger: #c81e1e;
    --star: #f5a623;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(16,24,40,.1), 0 1px 2px rgba(16,24,40,.06);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
    --bg: #16191f;
    --surface: #1e2229;
    --border: #333a44;
    --text: #e6e9ef;
    --muted: #9aa4b2;
    --hover: #262b33;
    --unread: #202a3d;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    font-size: 14px;
    line-height: 1.5;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }

/* Focus visibility (NFR-08) */
:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 2px;
    border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}

/* Buttons */
.btn {
    font: inherit; cursor: pointer; border: 1px solid transparent;
    border-radius: var(--radius); padding: 9px 16px; background: transparent;
    color: var(--text);
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { border-color: var(--border); background: var(--surface); }
.btn-ghost:hover { background: var(--hover); }
.btn-link { background: none; border: none; color: var(--blue); padding: 6px 8px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.icon-btn {
    border: none; background: none; cursor: pointer; font-size: 16px;
    padding: 8px; border-radius: 50%; color: var(--muted); line-height: 1;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }

/* ---------- Auth ---------- */
.auth-body {
    display: grid; place-items: center; min-height: 100%;
    background: linear-gradient(135deg, #1a56db22, #16a34a11), var(--bg);
    padding: 20px;
}
.auth-card {
    background: var(--surface); width: 100%; max-width: 400px;
    padding: 36px 32px; border-radius: 16px; box-shadow: var(--shadow);
}
.auth-brand { text-align: center; margin-bottom: 24px; }
.auth-brand h1 { margin: 8px 0 2px; font-size: 22px; }
.logo-mark {
    display: inline-grid; place-items: center; width: 44px; height: 44px;
    background: var(--blue); color: #fff; border-radius: 12px; font-size: 22px;
}
.auth-form { display: flex; flex-direction: column; gap: 6px; }
.auth-form label { font-weight: 600; margin-top: 10px; }
.auth-form input[type=email], .auth-form input[type=password], .auth-form input[type=text] {
    padding: 11px 12px; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--surface); color: var(--text); font: inherit;
}
.checkbox { display: flex; align-items: center; gap: 8px; font-weight: 400 !important; margin-top: 12px; }
.auth-form button { margin-top: 16px; }
.form-error { color: var(--danger); min-height: 18px; margin: 8px 0 0; }
.auth-foot { text-align: center; margin-top: 20px; font-size: 12px; }

/* ---------- App layout ---------- */
.app-body { display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.topbar {
    display: flex; align-items: center; gap: 12px; padding: 8px 16px;
    background: var(--surface); border-bottom: 1px solid var(--border); flex: 0 0 auto;
}
.brand { font-weight: 700; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.brand .logo-mark { width: 30px; height: 30px; font-size: 15px; border-radius: 8px; }
.searchbar { flex: 1; max-width: 720px; }
.searchbar input {
    width: 100%; padding: 10px 14px; border: 1px solid transparent; background: var(--hover);
    border-radius: 24px; font: inherit; color: var(--text);
}
.searchbar input:focus { background: var(--surface); border-color: var(--border); }
.topbar-right { display: flex; align-items: center; gap: 10px; position: relative; }
.avatar {
    width: 34px; height: 34px; border-radius: 50%; background: var(--blue); color: #fff;
    display: grid; place-items: center; font-weight: 700; cursor: pointer; text-transform: uppercase;
}
.menu {
    position: absolute; right: 0; top: 46px; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow); min-width: 220px; z-index: 50; overflow: hidden;
}
.menu-head { padding: 12px 16px; border-bottom: 1px solid var(--border); font-weight: 600; }
.menu-item { display: block; width: 100%; text-align: left; padding: 11px 16px; border: none; background: none; cursor: pointer; color: var(--text); font: inherit; }
.menu-item:hover { background: var(--hover); }

.layout { display: flex; flex: 1; overflow: hidden; }

/* Sidebar */
.sidebar {
    width: 240px; flex: 0 0 auto; padding: 12px; overflow-y: auto;
    border-right: 1px solid var(--border); background: var(--surface);
}
.compose-btn { width: 100%; margin-bottom: 12px; padding: 12px; font-weight: 600; }
.folder-list { display: flex; flex-direction: column; }
.folder-item {
    display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-radius: 20px;
    cursor: pointer; color: var(--text); border: none; background: none; font: inherit; text-align: left; width: 100%;
}
.folder-item:hover { background: var(--hover); }
.folder-item.active { background: var(--unread); font-weight: 700; color: var(--blue); }
.folder-item .count { margin-left: auto; font-size: 12px; color: var(--muted); }
.sidebar-heading { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 16px 0 6px 14px; }
.labels-block .label-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; margin: 3px; border-radius: 14px; font-size: 12px; }
.quota { margin-top: 20px; padding: 0 8px; }
.quota-bar { height: 6px; background: var(--hover); border-radius: 4px; overflow: hidden; }
.quota-bar span { display: block; height: 100%; background: var(--blue); }
.quota-bar span.warn { background: var(--danger); }

/* Content */
.content { flex: 1; display: flex; overflow: hidden; position: relative; background: var(--surface); }
.mail-list-pane { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.list-toolbar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-bottom: 1px solid var(--border); }
.list-title { font-weight: 700; }
.list-toolbar .refresh { margin-left: auto; }
.mail-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; }
.mail-row {
    display: flex; align-items: center; gap: 10px; padding: 10px 14px;
    border-bottom: 1px solid var(--border); cursor: pointer;
}
.mail-row:hover { box-shadow: inset 0 0 0 1px var(--border); background: var(--hover); }
.mail-row.unread { background: var(--unread); }
.mail-row.unread .mr-subject, .mail-row.unread .mr-from { font-weight: 700; }
.mr-star { color: var(--border); }
.mr-star.on { color: var(--star); }
.mr-from { width: 180px; flex: 0 0 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mr-main { flex: 1; min-width: 0; overflow: hidden; }
.mr-subject { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mr-snippet { color: var(--muted); }
.mr-meta { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.mr-count { background: var(--hover); border-radius: 10px; padding: 0 7px; font-size: 11px; }
.list-pager { display: flex; align-items: center; justify-content: flex-end; gap: 14px; padding: 8px 14px; border-top: 1px solid var(--border); }

/* Reading pane */
.reading-pane { flex: 1.4; display: flex; flex-direction: column; border-left: 1px solid var(--border); overflow: hidden; }
.reading-toolbar { display: flex; gap: 4px; padding: 8px 14px; border-bottom: 1px solid var(--border); }
#conversation { overflow-y: auto; padding: 16px 20px; }
.msg-card { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.msg-head { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.msg-subject { font-size: 18px; font-weight: 700; margin: 0 0 4px; }
.msg-from { font-weight: 600; }
.msg-date { color: var(--muted); font-size: 12px; }
.remote-banner { background: #fff8e1; color: #7a5900; padding: 8px 16px; font-size: 13px; display: flex; gap: 10px; align-items: center; }
[data-theme="dark"] .remote-banner { background: #3a3320; color: #e9d8a6; }
.msg-body-frame { width: 100%; border: none; background: #fff; }
.msg-attachments { padding: 12px 16px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 8px; }
.attach-chip { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; text-decoration: none; color: var(--text); }

.placeholder { flex: 1; display: grid; place-items: center; color: var(--muted); }

/* Compose */
.compose-window {
    position: fixed; bottom: 0; right: 24px; width: 540px; max-width: calc(100vw - 20px);
    background: var(--surface); border: 1px solid var(--border); border-radius: 12px 12px 0 0;
    box-shadow: 0 -4px 24px rgba(16,24,40,.18); z-index: 60; display: flex; flex-direction: column; max-height: 80vh;
}
.compose-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--text); color: #fff; border-radius: 12px 12px 0 0; }
.compose-head .icon-btn { color: #fff; }
.compose-form { display: flex; flex-direction: column; padding: 8px 14px 14px; overflow-y: auto; }
.compose-field { border: none; border-bottom: 1px solid var(--border); padding: 9px 2px; font: inherit; background: none; color: var(--text); }
.compose-field:focus { outline: none; border-bottom-color: var(--blue); }
.cc-toggle { text-align: right; }
.compose-body { min-height: 200px; padding: 10px 2px; outline: none; }
.compose-attachments { display: flex; flex-wrap: wrap; gap: 6px; }
.compose-foot { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.compose-warn { color: #7a5900; font-size: 12px; }
.autosave { margin-left: auto; font-size: 12px; color: var(--muted); }

/* Toast + modal */
.toast {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    background: var(--text); color: #fff; padding: 12px 18px; border-radius: var(--radius);
    display: flex; align-items: center; gap: 14px; z-index: 80; box-shadow: var(--shadow);
}
.toast .btn-link { color: #7db0ff; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: grid; place-items: center; z-index: 90; }
.modal-card { background: var(--surface); padding: 24px; border-radius: 14px; max-width: 480px; width: 90%; }
.shortcut-grid { list-style: none; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
kbd { background: var(--hover); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; font-family: monospace; }

/* Side panels (settings, contacts) */
.side-panel { position: fixed; inset: 0 0 0 auto; width: 640px; max-width: 100vw; background: var(--surface); border-left: 1px solid var(--border); box-shadow: var(--shadow); z-index: 70; overflow-y: auto; padding: 24px; }
.side-panel h2 { margin-top: 0; }
.panel-close { position: absolute; top: 16px; right: 16px; }
.settings-section { border-top: 1px solid var(--border); padding: 18px 0; }
.settings-section:first-of-type { border-top: none; }
.field-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; }
.field-row label { font-weight: 600; }
input[type=text], input[type=email], input[type=number], select, textarea {
    font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text);
}
table.data { width: 100%; border-collapse: collapse; margin-top: 12px; }
table.data th, table.data td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 10px; background: var(--hover); }
.badge.pass { background: #e3f6e9; color: #0b7a3b; }
.badge.fail { background: #fde5e5; color: var(--danger); }
.badge.info { background: #e7edfb; color: var(--blue); }

/* Responsive (MOB-01) */
.menu-toggle { display: none; }
@media (max-width: 900px) {
    .menu-toggle { display: inline-block; }
    .sidebar { position: absolute; z-index: 40; height: 100%; transform: translateX(-100%); transition: transform .2s; }
    .sidebar.open { transform: translateX(0); }
    .reading-pane { position: absolute; inset: 0; z-index: 30; border-left: none; }
    .mr-from { width: 120px; }
    .compose-window { right: 0; left: 0; width: 100%; }
    .searchbar { max-width: none; }
}

/* Manual mailbox setup (Outlook-style) */
.manual-setup {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 16px; margin-top: 12px; display: flex; flex-direction: column; gap: 8px;
}
.manual-setup legend { font-weight: 700; padding: 0 6px; }
.manual-setup .ms-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 6px; }
.manual-setup .ms-group strong { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.manual-setup .ms-row { display: flex; gap: 10px; }
.manual-setup .ms-row > div { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.manual-setup input, .manual-setup select {
    padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
    background: var(--surface); color: var(--text); font: inherit;
}
.form-status { min-height: 18px; margin: 6px 0 0; color: var(--muted); }
.form-status.ok { color: #0b7a3b; font-weight: 600; }
#manual-toggle { align-self: flex-start; }