/* ── App grid ── */
#app { display: grid; grid-template-rows: 56px 1fr; grid-template-columns: 280px 1fr; height: 100vh; }

/* ── Topbar ── */
#topbar { grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; padding: 0 24px; border-bottom: 1px solid var(--border); background: var(--bg2); z-index: 10; }
.logo { font-size: 15px; font-weight: 800; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; }
.logo span { color: var(--text3); font-weight: 400; }
.sep { width: 1px; height: 24px; background: var(--border); }
#file-btn { display: flex; align-items: center; gap: 8px; padding: 6px 14px; background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius); color: var(--text2); font-family: var(--font-ui); font-size: 12px; font-weight: 600; letter-spacing: 0.06em; cursor: pointer; transition: all .15s; }
#file-btn:hover { border-color: var(--accent); color: var(--accent); }
#file-input { display: none; }
#stats-bar { display: flex; gap: 24px; margin-left: auto; }
.stat { display: flex; flex-direction: column; align-items: flex-end; }
.stat-val { font-size: 14px; font-weight: 700; color: var(--text); font-family: var(--font-mono); }
.stat-lbl { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; }
#search-wrap { position: relative; }
#search { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font-mono); font-size: 12px; padding: 6px 12px 6px 30px; width: 220px; outline: none; transition: border-color .15s; }
#search:focus { border-color: var(--accent); }
.search-icon { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); color: var(--text3); font-size: 12px; pointer-events: none; }

/* ── Sidebar ── */
#sidebar { grid-row: 2; background: var(--bg2); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; }
.sidebar-section { padding: 12px 16px 8px; }
.sidebar-title { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text3); margin-bottom: 8px; }
.sidebar-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ── Main ── */
#main { grid-row: 2; display: flex; flex-direction: column; overflow: hidden; }

/* ── Toolbar ── */
#toolbar { display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--bg2); flex-shrink: 0; }
.view-btn { padding: 4px 12px; border-radius: 4px; font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; cursor: pointer; border: 1px solid var(--border2); background: transparent; color: var(--text2); font-family: var(--font-ui); transition: all .15s; }
.view-btn.active { background: var(--accent); border-color: var(--accent); color: #000; }
.view-btn:hover:not(.active) { border-color: var(--text2); color: var(--text); }
#row-count { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--text3); }

/* ── Time range filter ── */
.time-range-wrap { display: flex; align-items: center; gap: 6px; }
.time-range-label { font-size: 10px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text3); }
.time-input { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font-mono); font-size: 11px; padding: 4px 8px; outline: none; transition: border-color .15s; }
.time-input:focus { border-color: var(--accent); }
.time-input[type="date"] { width: 130px; color-scheme: dark; }
.time-hour { width: 48px; text-align: center; }
.time-clear { background: transparent; border: 1px solid var(--border); border-radius: 4px; color: var(--text3); font-size: 11px; padding: 3px 7px; cursor: pointer; transition: all .15s; }
.time-clear:hover { border-color: var(--err); color: var(--err); }

/* ── Drop overlay ── */
#drop-overlay { position: fixed; inset: 0; background: rgba(12,13,15,.92); display: none; align-items: center; justify-content: center; z-index: 100; flex-direction: column; gap: 12px; border: 2px dashed var(--accent); }
#drop-overlay.active { display: flex; }
.drop-text { font-size: 20px; font-weight: 800; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; }
.drop-sub { font-size: 12px; color: var(--text3); font-family: var(--font-mono); }

/* ── Empty state ── */
#empty { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; gap: 12px; }
.empty-icon { font-size: 40px; opacity: 0.15; }
.empty-text { font-size: 13px; color: var(--text3); }
.empty-hint { font-size: 11px; color: var(--text3); font-family: var(--font-mono); opacity: 0.6; }