:root {
    --bg:          #f6f5f1;
    --bg-card:    #ffffff;
    --bg-sidebar: #1c1a17;
    --ink:        #1c1a17;
    --ink-soft:   #4a4540;
    --ink-mute:   #8a847d;
    --accent:     #b89b6a;
    --accent-soft:#d4bc92;
    --border:     #e2ddd5;
    --unread-bar: #b89b6a;
    --shadow:     0 1px 3px rgba(0,0,0,0.05);
    --sidebar-w:  280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; font-family: system-ui, -apple-system, sans-serif; color: var(--ink); background: var(--bg); font-size: 14px; }

body { display: flex; min-height: 100vh; }

.hidden { display: none !important; }

/* ─── Sidebar ────────────────────────────────────────────────────── */

#sidebar {
    width: var(--sidebar-w);
    background: var(--bg-sidebar);
    color: #d4cfc6;
    display: flex; flex-direction: column;
    position: fixed; top: 0; left: 0; height: 100vh;
}

.brand {
    display: flex; align-items: center; gap: 0.8rem;
    padding: 1.6rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}
.brand-mark {
    width: 36px; height: 36px;
    background: var(--accent); color: #1c1a17;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; border-radius: 6px;
}
.brand-name { font-size: 1.1rem; font-weight: 500; color: #fff; }
.brand-sub { font-size: 0.7rem; color: var(--accent-soft); letter-spacing: 0.1em; text-transform: uppercase; }

.user-info {
    padding: 1rem 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.07);
}
.user-name { font-size: 0.95rem; color: #f0ede7; }
.user-email { font-size: 0.78rem; color: var(--ink-mute); margin-top: 0.2rem; }

#mailboxes-nav { flex: 1; overflow-y: auto; padding: 1rem 0 1.5rem; }
.nav-header {
    padding: 0.5rem 1.5rem;
    font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--accent); opacity: 0.85;
}
#mailboxes-list { list-style: none; }

.mailbox-item {
    padding: 0.6rem 1.5rem;
    cursor: pointer;
    border-left: 3px solid transparent;
    display: flex; justify-content: space-between; align-items: center;
    transition: background 0.15s;
}
.mailbox-item:hover { background: rgba(255,255,255,0.04); }
.mailbox-item.active {
    background: rgba(255,255,255,0.08);
    border-left-color: var(--accent);
    color: #fff;
}
.mailbox-name { font-size: 0.92rem; }
.mailbox-count {
    font-size: 0.72rem; color: var(--ink-mute);
    background: rgba(255,255,255,0.06);
    padding: 0.15rem 0.5rem; border-radius: 999px;
}
.mailbox-empty { padding: 1rem 1.5rem; font-size: 0.82rem; color: var(--ink-mute); font-style: italic; }

.sync-btn {
    margin: 1rem 1.5rem 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--accent); color: var(--ink);
    border: none; border-radius: 4px; cursor: pointer;
    font-size: 0.85rem; font-weight: 500;
}
.sync-btn:hover { background: var(--accent-soft); }
.sync-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.sync-status { padding: 0 1.5rem; font-size: 0.78rem; color: var(--ink-mute); }

.settings-btn {
    margin: 0.5rem 1.5rem;
    padding: 0.5rem 1rem;
    background: transparent; color: #d4cfc6;
    border: 1px solid rgba(255,255,255,0.15); border-radius: 4px;
    cursor: pointer; font-size: 0.82rem;
}
.settings-btn:hover { border-color: var(--accent); color: var(--accent-soft); }

/* ─── Settings view ─────────────────────────────────────────────── */

.settings-title { font-size: 1.2rem; font-weight: 500; flex: 1; }
.settings-content { padding: 2rem; max-width: 800px; }
.settings-help { color: var(--ink-soft); margin-bottom: 1.5rem; font-size: 0.92rem; }
.settings-status { padding: 0.6rem 0; font-size: 0.85rem; color: var(--ink-mute); min-height: 1.5rem; }
.settings-mailboxes { list-style: none; }

.settings-mb {
    background: var(--bg-card); border: 1px solid var(--border);
    margin-bottom: 0.5rem; border-radius: 4px;
    transition: border-color 0.15s;
}
.settings-mb:hover { border-color: var(--accent-soft); }
.settings-mb-active { border-left: 3px solid var(--accent); }

.settings-mb-label {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.8rem 1.2rem; cursor: pointer;
}
.settings-mb-label input[type="checkbox"] {
    width: 18px; height: 18px; cursor: pointer; accent-color: var(--accent);
}
.settings-mb-info { flex: 1; }
.settings-mb-name { font-weight: 500; }
.settings-mb-email { font-size: 0.82rem; color: var(--ink-mute); }

.state-tag {
    font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
    padding: 0.2rem 0.5rem; border-radius: 3px;
}
.state-active { background: var(--accent-soft); color: var(--ink); }
.state-disabled { background: #f0ede7; color: var(--ink-mute); }

.settings-mb-purpose {
    font-size: 0.82rem; color: var(--ink-soft);
    margin-top: 0.3rem; font-style: italic;
}

.taxonomy-edit-btn {
    background: transparent; border: 1px solid var(--accent);
    color: var(--accent); padding: 0.3rem 0.6rem;
    font-size: 0.78rem; border-radius: 4px; cursor: pointer;
    white-space: nowrap;
}
.taxonomy-edit-btn:hover { background: var(--accent-soft); color: var(--ink); }

.taxonomy-editor {
    background: #f9f7f3; border: 1px solid var(--border);
    border-radius: 6px; padding: 1rem; margin-top: 0.5rem;
}
.tax-section { margin-bottom: 1rem; }
.tax-section:last-child { margin-bottom: 0; }
.tax-label { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.4rem; color: var(--ink); }
.tax-label-sm { font-size: 0.78rem; color: var(--ink-mute); margin-bottom: 0.4rem; }
.tax-purpose {
    width: 100%; padding: 0.5rem; font-family: inherit;
    border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.85rem; resize: vertical;
}
.tax-save-purpose, .tax-add-btn {
    background: var(--accent); color: white; border: none;
    padding: 0.4rem 0.8rem; border-radius: 4px; cursor: pointer;
    font-size: 0.8rem; margin-top: 0.4rem;
}
.tax-purpose-status, .tax-add-status {
    margin-left: 0.6rem; font-size: 0.8rem; color: var(--ink-soft);
}

.tax-tag-list { list-style: none; padding: 0; margin: 0 0 0.5rem 0; }
.tax-tag-list li {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: white; border: 1px solid var(--border); border-radius: 4px;
    margin-bottom: 0.3rem;
}
.tax-tag-name { font-weight: 600; font-size: 0.85rem; min-width: 140px; }
.tax-tag-desc { flex: 1; font-size: 0.78rem; color: var(--ink-soft); }
.tax-tag-del {
    background: transparent; border: none; cursor: pointer;
    font-size: 1.1rem; color: var(--ink-mute);
}
.tax-tag-del:hover { color: #c14338; }
.tax-empty { color: var(--ink-mute); font-style: italic; padding: 0.4rem; }

.tax-add-row {
    display: grid; grid-template-columns: 1fr 2fr auto; gap: 0.4rem;
    align-items: center;
}
.tax-add-row input {
    padding: 0.4rem; border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.82rem;
}

.tax-globals { padding-top: 0.6rem; border-top: 1px solid var(--border); }
.tax-chip {
    display: inline-block; padding: 0.15rem 0.5rem;
    background: var(--accent-soft); color: var(--ink);
    border-radius: 10px; font-size: 0.75rem;
    margin-right: 0.3rem;
}

.tax-loading, .tax-err { font-size: 0.85rem; color: var(--ink-soft); padding: 0.5rem; }
.tax-err { color: #c14338; }

/* ─── Compose modal ─────────────────────────────────────────────── */

.compose-btn { padding: 0.5rem 1.2rem; font-size: 0.9rem; }

.modal {
    position: fixed; inset: 0;
    background: rgba(28,26,23,0.45);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
}
.modal-card {
    background: var(--bg-card);
    width: 100%; max-width: 640px;
    max-height: 90vh;
    border-radius: 8px;
    display: flex; flex-direction: column;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 1.2rem; }
.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}
.modal-footer {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

.field {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 0.8rem;
}
.field-label {
    width: 70px;
    font-size: 0.85rem; color: var(--ink-soft); text-align: right;
}
.field input[type="text"],
.field select {
    flex: 1;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.95rem; font-family: inherit;
    background: white;
}
.field-body { align-items: flex-start; }
.field-body textarea {
    flex: 1;
    padding: 0.7rem;
    border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.95rem; font-family: inherit;
    resize: vertical;
    min-height: 200px;
}

.compose-status {
    flex: 1;
    font-size: 0.85rem; color: var(--ink-mute);
}

/* ─── Tags ──────────────────────────────────────────────────────── */

.tags-header { margin-top: 0.8rem; }

.tag-dot {
    display: inline-block; width: 8px; height: 8px;
    border-radius: 50%; margin-right: 0.5rem;
    vertical-align: middle;
}

.tag-source-pin {
    color: var(--accent);
    font-size: 0.6rem; margin-left: 0.3rem;
    vertical-align: middle;
}

.tag-chip {
    display: inline-block;
    font-size: 0.7rem; letter-spacing: 0.02em;
    padding: 0.15rem 0.5rem;
    border: 1px solid;
    border-radius: 99px;
    font-weight: 500;
}

/* Tags-header layout (with + button) */
.tags-header {
    display: flex; align-items: center; justify-content: space-between;
}
.add-tag-btn {
    background: rgba(255,255,255,0.08);
    color: var(--accent);
    border: none; border-radius: 50%;
    width: 22px; height: 22px;
    line-height: 1; padding: 0; cursor: pointer;
    font-size: 1rem; font-weight: 500;
}
.add-tag-btn:hover { background: rgba(184,155,106,0.25); color: var(--cream); }

/* Add-tag inline form */
.add-tag-form {
    padding: 0.6rem 1.5rem 0.4rem;
    background: rgba(0,0,0,0.18);
    display: flex; flex-direction: column; gap: 0.4rem;
}
.add-tag-form input {
    padding: 0.4rem 0.55rem;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.03);
    color: var(--cream);
    border-radius: 3px;
    font-size: 0.82rem;
}
.add-tag-form input:focus { outline: 1px solid var(--accent); }
.add-tag-form input::placeholder { color: rgba(255,255,255,0.3); }
.add-tag-actions {
    display: flex; gap: 0.5rem; align-items: center;
    margin-top: 0.2rem;
}
.add-tag-actions .sync-btn { margin: 0; padding: 0.35rem 0.8rem; font-size: 0.8rem; }

/* Tag item hover with delete button */
.tag-item .tag-actions {
    display: flex; align-items: center; gap: 0.3rem;
}
.tag-item .tag-delete-btn {
    display: none;
    background: none; border: none;
    color: rgba(255,255,255,0.4);
    cursor: pointer; font-size: 1rem; padding: 0 0.3rem;
    line-height: 1;
}
.tag-item:hover .tag-delete-btn { display: inline-block; }
.tag-item .tag-delete-btn:hover { color: #d77; }

/* AI settings info panel */
.ai-info {
    padding: 0.8rem 1.5rem;
    margin-top: 1rem;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.4);
    border-top: 1px solid rgba(255,255,255,0.05);
    line-height: 1.6;
}
.ai-info code {
    color: var(--accent-soft);
    background: rgba(0,0,0,0.25);
    padding: 0 0.3rem; border-radius: 2px;
}
.ai-info-row { display: flex; justify-content: space-between; }
.ai-info-hint { margin-top: 0.4rem; font-style: italic; opacity: 0.7; }

.link-btn { background: none; border: none; color: var(--accent-soft); cursor: pointer; font-size: 0.78rem; padding: 0.3rem 0; }
.link-btn:hover { color: #fff; text-decoration: underline; }

/* ─── Main ──────────────────────────────────────────────────────── */

#main { margin-left: var(--sidebar-w); flex: 1; min-height: 100vh; }

.view { padding: 0; }

/* Login */
#login-view {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; padding: 2rem;
}
.login-card {
    background: var(--bg-card); padding: 3rem;
    border-radius: 8px; box-shadow: var(--shadow);
    max-width: 420px; width: 100%; text-align: center;
}
.login-card h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.login-card p { color: var(--ink-soft); margin-bottom: 1.5rem; }
.primary-btn {
    background: var(--ink); color: #fff;
    border: none; padding: 0.8rem 2rem;
    border-radius: 4px; cursor: pointer;
    font-size: 1rem;
}
.primary-btn:hover { background: #2d2925; }
.hint { font-size: 0.78rem; color: var(--ink-mute); margin-top: 1rem; }

/* App */
.topbar {
    background: var(--bg-card);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 1rem;
}
#search-input {
    flex: 1; max-width: 600px;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.95rem;
}
.filter-label {
    background: var(--accent-soft); color: var(--ink);
    padding: 0.3rem 0.7rem; border-radius: 3px;
    font-size: 0.82rem;
}

.content-area { display: flex; height: calc(100vh - 65px); }

.email-list { flex: 1; list-style: none; overflow-y: auto; }
.email-item {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer; transition: background 0.1s;
    background: var(--bg-card);
}
.email-item:hover { background: #faf9f6; }
.email-item.unread { border-left: 3px solid var(--unread-bar); }

.email-header { display: flex; justify-content: space-between; margin-bottom: 0.3rem; }
.email-sender { font-weight: 500; color: var(--ink); }
.email-date { font-size: 0.78rem; color: var(--ink-mute); }
.email-subject { font-size: 0.95rem; color: var(--ink); margin-bottom: 0.2rem; }
.email-item.unread .email-subject { font-weight: 600; }
.email-preview { font-size: 0.82rem; color: var(--ink-mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.email-meta { display: flex; gap: 0.4rem; margin-top: 0.4rem; }
.badge { font-size: 0.7rem; padding: 0.15rem 0.45rem; background: #f0ede7; color: var(--ink-soft); border-radius: 3px; }
.badge-attach, .badge-important { font-size: 0.78rem; }

/* Email detail panel */
.email-detail {
    flex: 1.2;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    padding: 2rem;
    overflow-y: auto;
    position: relative;
}
.close-btn {
    position: absolute; top: 1rem; right: 1rem;
    background: none; border: none; font-size: 1.5rem;
    cursor: pointer; color: var(--ink-mute);
}
.email-detail h2 { font-size: 1.4rem; margin-bottom: 1rem; }
.detail-meta { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.detail-meta div { margin-bottom: 0.3rem; }
.detail-body { white-space: pre-wrap; font-family: inherit; font-size: 0.92rem; line-height: 1.6; color: var(--ink); }

.empty-state {
    padding: 4rem 2rem; text-align: center; color: var(--ink-mute);
}

/* Per-email classify button + debug panel */
.detail-actions {
    display: flex; align-items: center; gap: 0.75rem;
    margin: 1rem 0 0.5rem;
}
.detail-actions button {
    background: var(--accent); color: white; border: none;
    padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer;
    font-size: 0.85rem;
}
.detail-actions button:disabled { opacity: 0.5; cursor: wait; }
#classify-one-status { font-size: 0.85rem; color: var(--ink-soft); }

.classify-debug {
    background: #1c1a17; color: #d4cfc6;
    padding: 0.9rem 1rem; border-radius: 6px;
    font-size: 0.78rem; font-family: 'SF Mono', Menlo, Consolas, monospace;
    margin-bottom: 1rem;
    border-left: 3px solid var(--accent);
}
.classify-debug .dbg-title {
    color: var(--accent-soft); font-weight: 600;
    margin-bottom: 0.5rem; letter-spacing: 0.5px;
}
.classify-debug .dbg-row { margin-bottom: 0.3rem; line-height: 1.5; }
.classify-debug code {
    background: rgba(255,255,255,0.08); padding: 0.05rem 0.3rem; border-radius: 3px;
}
.classify-debug .dbg-err {
    color: #f0a8a0; margin-top: 0.5rem;
    border-top: 1px solid #3a352f; padding-top: 0.5rem;
}
.classify-debug .dbg-raw { margin-top: 0.6rem; }
.classify-debug .dbg-raw summary { cursor: pointer; color: var(--accent-soft); }
.classify-debug .dbg-raw pre {
    margin-top: 0.4rem; background: rgba(0,0,0,0.3);
    padding: 0.5rem; border-radius: 4px; overflow-x: auto;
    white-space: pre-wrap; word-break: break-word;
}

@media (max-width: 800px) {
    #sidebar { width: 100%; position: relative; height: auto; }
    #main { margin-left: 0; }
    .content-area { flex-direction: column; height: auto; }
    .email-detail { border-left: none; border-top: 1px solid var(--border); }
}