:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --bg-hover: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --text-muted: #555555;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-krypt: #dc2626;
    --accent-atproto: #0085ff;
    --accent-activitypub: #6364ff;
    --border: #222222;
    --error: #ef4444;
    --success: #22c55e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

#app { min-height: 100%; }

/* Landing */
.landing {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.logo {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-primary);
}

.logo.clickable { cursor: pointer; transition: color 0.2s; }
.logo.clickable:hover { color: var(--accent); }
.tagline { margin-top: 0.5rem; color: var(--text-secondary); font-size: 1rem; }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.8); }

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    max-width: 360px;
    margin: 1rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover { color: var(--text-primary); }
.modal-content h2 { margin-bottom: 1.5rem; font-size: 1.25rem; }

/* Profile Preview Modal */
.profile-preview { max-width: 400px; }

.profile-preview-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.profile-preview-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    overflow: hidden;
    flex-shrink: 0;
}

.profile-preview-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-preview-names {
    flex: 1;
    min-width: 0;
}

.profile-preview-names h3 {
    font-size: 1.125rem;
    margin: 0 0 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-handle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.profile-preview-bio {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    max-height: 4.5em;
    overflow: hidden;
}

.profile-preview-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
}

.profile-preview-stats span {
    color: var(--text-secondary);
}

.profile-preview-stats strong {
    color: var(--text-primary);
    margin-right: 0.25rem;
}

.profile-preview-actions {
    display: flex;
    gap: 0.75rem;
}

.profile-preview-actions .btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
}

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--text-secondary); font-size: 0.875rem; }

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus { outline: none; border-color: var(--accent); }
.error { color: var(--error); font-size: 0.875rem; margin-bottom: 1rem; }
.error.hidden { display: none; }

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover { background: var(--bg-hover); }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-small { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Login Status */
.login-status { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.login-status.hidden { display: none; }

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.status-item .status-icon { font-size: 0.75rem; }
.status-item.success { color: var(--success); }
.status-item.error { color: var(--error); }

/* Dashboard */
.dashboard { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
.dashboard.hidden { display: none; }

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 1000;
}

.header .logo { font-size: 1.5rem; }
.nav { display: flex; align-items: center; gap: 1rem; }
.current-user { color: var(--text-secondary); font-size: 0.875rem; }

/* Header Search */
.header-search {
    position: relative;
    flex: 1;
    max-width: 400px;
    margin: 0 1.5rem;
}

.header-search .search-box {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
}

.header-search .search-box input[type="text"] {
    background: transparent;
    border: none;
    padding: 0.5rem;
    font-size: 0.875rem;
}

.header-search .search-box input[type="text"]:focus {
    outline: none;
    border: none;
}

.header-search .search-toggles {
    gap: 0.25rem;
}

.header-search .search-toggles .toggle-label {
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
}

.header-search .search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1001;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
}

.search-overlay.hidden { display: none; }

/* Composer */
.composer { max-width: 800px; margin: 2rem auto; padding: 0 1rem; width: 100%; }

.composer textarea {
    width: 100%;
    min-height: 100px;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
}

.composer textarea:focus { outline: none; border-color: var(--accent); }
.composer-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 0.75rem; }
.composer-toggles { display: flex; gap: 1rem; }
.toggle { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
.toggle input { display: none; }

.toggle-label {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s;
}

.toggle-label.atproto { color: var(--accent-atproto); }
.toggle-label.activitypub { color: var(--accent-activitypub); }
.toggle-label.krypt { color: var(--accent-krypt); }
.toggle input:checked + .toggle-label.atproto { background: var(--accent-atproto); color: white; border-color: var(--accent-atproto); }
.toggle input:checked + .toggle-label.activitypub { background: var(--accent-activitypub); color: white; border-color: var(--accent-activitypub); }
.toggle input:checked + .toggle-label.krypt { background: var(--accent-krypt); color: white; border-color: var(--accent-krypt); }

.composer-actions { display: flex; align-items: center; gap: 1rem; }
#char-count { color: var(--text-muted); font-size: 0.875rem; }

/* Search */
.search-box {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.search-box input[type="text"] {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.search-box input[type="text"]:focus {
    outline: none;
}

.search-toggles {
    display: flex;
    gap: 0.5rem;
}

.search-results {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.search-results.hidden { display: none; }

.search-result {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.search-result:last-child { border-bottom: none; }

.search-result-clickable {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
    cursor: pointer;
    padding: 0.25rem;
    margin: -0.25rem;
    border-radius: 6px;
    transition: background 0.2s;
}

.search-result-clickable:hover {
    background: var(--bg-hover);
}

.search-result-clickable:hover .search-result-name {
    color: var(--accent);
}

.search-result-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    overflow: hidden;
    flex-shrink: 0;
}

.search-result-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-name {
    font-weight: 600;
    font-size: 0.9375rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-handle {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result .btn {
    flex-shrink: 0;
}

.search-result-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    margin-left: 0.5rem;
}

.search-result-badge.atproto {
    background: var(--accent-atproto);
    color: white;
}

.search-result-badge.activitypub {
    background: var(--accent-activitypub);
    color: white;
}

.search-result-badge.krypt {
    background: var(--accent-krypt);
    color: white;
}

.search-empty {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
}

.search-loading {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Instance Suggestions */
.instance-suggestions-header {
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.instance-suggestion {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

.instance-suggestion:last-child {
    border-bottom: none;
}

.instance-suggestion:hover {
    background: var(--bg-hover);
}

.instance-domain {
    font-weight: 600;
    color: var(--accent-activitypub);
}

.instance-handle {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* Feeds */
.feeds { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); flex: 1; min-height: 0; overflow: hidden; }
.feed { background: var(--bg-primary); display: flex; flex-direction: column; min-height: 0; overflow: hidden; }

.feed-header {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.feed-header h2 { font-size: 1.25rem; font-weight: 700; }
.feed-atproto .feed-header h2 { color: var(--accent-atproto); }
.feed-activitypub .feed-header h2 { color: var(--accent-activitypub); }
.feed-subtitle { color: var(--text-muted); font-size: 0.875rem; }
.feed-content { flex: 1; overflow-y: auto; padding: 1rem; min-height: 0; }
.feed-content::-webkit-scrollbar { width: 8px; }
.feed-content::-webkit-scrollbar-track { background: var(--bg-primary); }
.feed-content::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.feed-content::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
.loading { text-align: center; padding: 2rem; color: var(--text-muted); }
.load-more { text-align: center; padding: 1rem; color: var(--text-muted); font-size: 0.875rem; }

/* Posts */
.post {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.post-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }

.post-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.post-avatar img { width: 100%; height: 100%; object-fit: cover; }
.post-author { flex: 1; }
.post-author.clickable { cursor: pointer; }
.post-author.clickable:hover .post-name { color: var(--accent); }
.post-name { font-weight: 600; font-size: 0.9375rem; transition: color 0.2s; }
.post-handle { color: var(--text-secondary); font-size: 0.8125rem; }
.post-time { color: var(--text-muted); font-size: 0.75rem; }
.post-content { font-size: 0.9375rem; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.post-empty { text-align: center; padding: 2rem; color: var(--text-muted); }

/* Profile */
.profile-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    overflow: hidden;
    flex-shrink: 0;
}

.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-info { flex: 1; }
.profile-info h2 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.profile-handles { display: flex; gap: 1rem; margin-bottom: 0.75rem; }

.handle {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
}

.handle-atproto { color: var(--accent-atproto); }
.handle-activitypub { color: var(--accent-activitypub); }
.profile-bio { color: var(--text-secondary); font-size: 0.9375rem; }

.profile-actions { margin-top: 1rem; }
.profile-actions.hidden { display: none; }

.profile-actions .btn-following {
    background: var(--bg-tertiary);
    border-color: var(--border);
}

.profile-actions .btn-following:hover {
    background: var(--error);
    border-color: var(--error);
}

.profile-indicator { padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.875rem; font-weight: 600; }
.profile-indicator.atproto { background: var(--accent-atproto); color: white; }
.profile-indicator.activitypub { background: var(--accent-activitypub); color: white; }

/* Settings Page */
.settings-container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.settings-container h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.settings-section {
    margin-bottom: 2rem;
}

.settings-section h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.settings-row {
    margin-bottom: 1.5rem;
}

.settings-row label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.settings-row input[type="text"],
.settings-row textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
}

.settings-row input:focus,
.settings-row textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.settings-row textarea {
    min-height: 100px;
    resize: vertical;
}

.char-hint {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: right;
}

/* Avatar Upload */
.avatar-upload {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar-preview {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s;
}

.avatar-preview:hover {
    border-color: var(--accent);
}

.avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    font-size: 2rem;
    color: var(--text-muted);
}

/* Header Upload */
.header-upload {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.header-preview {
    width: 100%;
    height: 120px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s;
}

.header-preview:hover {
    border-color: var(--accent);
}

.header-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-placeholder {
    color: var(--text-muted);
}

.header-upload .btn {
    align-self: flex-start;
}

/* Sync Status */
.sync-status {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sync-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.sync-protocol {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.sync-protocol.atproto { background: var(--accent-atproto); color: white; }
.sync-protocol.activitypub { background: var(--accent-activitypub); color: white; }

.sync-state {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.sync-state.synced { color: var(--success); }
.sync-state.error { color: var(--error); }

/* Settings Actions */
.settings-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.save-status {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.save-status.success { color: var(--success); }
.save-status.error { color: var(--error); }

/* Button variants */
.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1px solid var(--error);
}

.btn-danger:hover {
    background: var(--error);
    color: white;
}

/* Gate Screen */
.gate {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.gate.hidden { display: none; }

.gate-content {
    text-align: center;
    max-width: 360px;
    width: 100%;
    padding: 2rem;
}

.gate-content .logo {
    margin-bottom: 2rem;
}

.gate-hint {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

#gate-form input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
    margin-bottom: 1rem;
}

#gate-form input:focus {
    outline: none;
    border-color: var(--accent);
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: color 0.2s;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.auth-tab:hover {
    color: var(--text-primary);
}

.auth-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.auth-form.hidden { display: none; }

/* Form Helpers */
.input-hint {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.form-link {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.form-link a {
    color: var(--text-secondary);
    text-decoration: none;
}

.form-link a:hover {
    color: var(--accent);
}

.form-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.success {
    color: var(--success);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(34, 197, 94, 0.1);
    border-radius: 8px;
}

.success.hidden { display: none; }

/* Pages (full-screen content) */
.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.page.hidden { display: none; }

.page-content {
    text-align: center;
    max-width: 400px;
    width: 100%;
    padding: 2rem;
}

.page-content .logo {
    margin-bottom: 1.5rem;
}

.page-content h2 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.page-content .form-group {
    text-align: left;
}

.verify-success {
    color: var(--success);
    font-size: 1.125rem;
}

.verify-error {
    color: var(--error);
    font-size: 1.125rem;
}

.verify-message {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.9375rem;
}

/* Responsive */
@media (max-width: 768px) {
    .feeds { grid-template-columns: 1fr; }
    .profile-header { flex-direction: column; align-items: center; text-align: center; }
    .profile-handles { justify-content: center; }
    .header { padding: 1rem; }
    .composer { padding: 0 1rem; margin: 1rem auto; }
    .settings-container { margin: 1rem auto; }
    .avatar-upload { flex-wrap: wrap; }
}

.hidden { display: none !important; }