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

:root {
    --bg: #1a1a2e;
    --bg-surface: #16213e;
    --bg-hover: #1f3460;
    --text: #e0e0e0;
    --text-muted: #8899aa;
    --accent: #4a9eff;
    --accent-hover: #6bb3ff;
    --danger: #ff6b6b;
    --border: #2a3a5c;
    --radius: 8px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    height: 100dvh;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
}

#app {
    height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100dvh;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.view {
    height: 100dvh;
    display: flex;
    flex-direction: column;
}

textarea, input[type="text"] {
    -webkit-user-select: text;
    user-select: text;
}

.hidden {
    display: none !important;
}

/* Write view */
#write-view {
    padding: 24px;
}

#note-input {
    flex: 1;
    background: var(--bg-surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.6;
    resize: none;
    outline: none;
}

#note-input:focus {
    border-color: var(--accent);
}

#note-input::placeholder {
    color: var(--text-muted);
}

.toolbar {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px 0 0;
}

.toolbar-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.toolbar-status {
    display: flex;
    gap: 8px;
    align-items: center;
    min-height: 1.2em;
    overflow: hidden;
}

.hint {
    color: var(--text-muted);
    font-size: 13px;
}

.status {
    font-size: 13px;
    color: var(--accent);
}

/* Search view */
#search-view {
    padding: 24px;
}

.search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

#search-input {
    flex: 1;
    background: var(--bg-surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 15px;
    outline: none;
}

#search-input:focus {
    border-color: var(--accent);
}

#search-input::placeholder {
    color: var(--text-muted);
}

.btn-icon {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 20px;
    width: 44px;
    cursor: pointer;
}

.btn-icon:hover {
    color: var(--text);
    border-color: var(--text-muted);
}

#search-results {
    flex: 1;
    overflow-y: auto;
}

.result-item {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

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

.result-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.result-snippet {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-snippet b {
    color: var(--accent);
    font-weight: 600;
}

.result-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-muted);
}

/* Detail view */
#detail-view {
    padding: 24px;
}

.detail-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.detail-actions {
    display: flex;
    gap: 8px;
}

#detail-editor {
    flex: 1;
    background: var(--bg-surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.6;
    resize: none;
    outline: none;
}

#detail-editor:focus {
    border-color: var(--accent);
}

.detail-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0 0;
    font-size: 13px;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    background: var(--bg-surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s;
}

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

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-danger {
    color: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover {
    background: rgba(255, 107, 107, 0.1);
}

/* Sync indicator */
.sync-indicator {
    display: flex;
    gap: 6px;
    align-items: center;
}

.btn-sync {
    background: var(--bg-surface);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 10px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-sync:hover {
    background: var(--bg-hover);
}

.btn-sync-muted {
    color: var(--text-muted);
}

.btn-sync-primary {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
}

.btn-sync-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-sync.syncing {
    opacity: 0.5;
    pointer-events: none;
}

/* Login modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    width: 360px;
    max-width: 90vw;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-content h3 {
    margin: 0 0 4px;
    font-size: 18px;
    color: var(--text);
}

.modal-content input {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 12px;
    font-size: 14px;
    outline: none;
}

.modal-content input:focus {
    border-color: var(--accent);
}

.modal-content input::placeholder {
    color: var(--text-muted);
}

.modal-actions {
    display: flex;
    gap: 8px;
}

/* Mobile responsive */
@media (max-width: 600px) {
    #write-view,
    #search-view,
    #detail-view {
        padding: 16px;
    }

    #note-input,
    #detail-editor {
        font-size: 16px; /* prevents iOS zoom on focus */
        padding: 12px;
    }

    #search-input {
        font-size: 16px;
        padding: 10px 12px;
    }

    .toolbar {
        padding: 8px 0 0;
    }

    .hint {
        font-size: 12px;
    }

    .detail-toolbar {
        margin-bottom: 12px;
    }

    .btn {
        padding: 10px 14px; /* larger tap targets */
    }

    .result-item {
        padding: 14px 12px;
    }
}