/* ── Layout Shell ───────────────────────────────────────────────────────────── */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.app-main {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
.app-header {
    background: #000911;
    border-bottom: 1px solid var(--accent);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.header-logo {
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    color: var(--accent);
    text-shadow: var(--glow-md);
    text-transform: uppercase;
    white-space: nowrap;
}
.header-logo span { opacity: 0.6; font-size: 0.7em; }

.header-nav {
    display: flex;
    gap: 0.25rem;
    flex: 1;
}

.nav-link {
    padding: 0.4rem 0.9rem;
    color: var(--text);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border: 1px solid transparent;
    transition: all 0.2s;
}
.nav-link:hover, .nav-link.active {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: var(--glow-sm);
    text-shadow: var(--glow-sm);
}

/* ── Nav dropdown group (e.g. INFO) ─────────────────────────────────────────── */
.nav-group { position: relative; }
.nav-group-toggle { background: none; cursor: pointer; }
.nav-group.open > .nav-group-toggle,
.nav-group.active > .nav-group-toggle {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: var(--glow-sm);
    text-shadow: var(--glow-sm);
}
.nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    flex-direction: column;
    min-width: 12rem;
    background: #000911;
    border: 1px solid var(--accent);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6), var(--glow-sm);
    z-index: 200;
    padding: 0.25rem;
    gap: 0.1rem;
}
.nav-group.open .nav-dropdown { display: flex; }
.nav-dropdown .nav-link { white-space: nowrap; }

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.header-user {
    font-size: 0.75rem;
    color: var(--accent-dim);
}

.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--accent-dim);
    width: 32px; height: 32px;
    cursor: pointer;
    font-size: 1rem;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.theme-toggle-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--glow-sm);
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.app-footer {
    background: #000911;
    border-top: 1px solid var(--border);
    padding: 0.75rem 2rem;
    font-size: 0.72rem;
    color: var(--accent-dim);
    letter-spacing: 0.08em;
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.footer-services { display: flex; gap: 1rem; align-items: center; }

/* ── Theme Drawer ───────────────────────────────────────────────────────────── */
.theme-drawer {
    position: fixed;
    top: 0; right: -340px;
    width: 320px;
    height: 100vh;
    background: #000911;
    border-left: 1px solid var(--accent);
    box-shadow: -4px 0 30px rgba(0,255,255,0.15);
    z-index: 200;
    transition: right 0.3s ease;
    overflow-y: auto;
    padding: 1.5rem;
}
.theme-drawer.open { right: 0; }

.theme-drawer-title {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--accent);
    text-shadow: var(--glow-sm);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
}

.theme-presets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.preset-btn {
    padding: 0.5rem;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-family: var(--font-family);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
}
.preset-btn:hover, .preset-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--glow-sm);
}
.preset-swatch {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-right: 0.4rem;
    vertical-align: middle;
}

.theme-control { margin-bottom: 1rem; }
.theme-control label {
    display: block;
    font-size: 0.72rem;
    color: var(--accent-dim);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}
.theme-control input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}
.theme-control input[type="color"] {
    width: 100%;
    height: 36px;
    border: 1px solid var(--border);
    background: none;
    cursor: pointer;
    padding: 0;
}
.theme-control select {
    width: 100%;
    background: #000d1a;
    border: 1px solid var(--border);
    color: var(--text-bright);
    font-family: var(--font-family);
    font-size: 0.85rem;
    padding: 0.4rem;
}
.theme-control select optgroup {
    background: #000d1a;
    color: var(--accent-dim);
    font-style: normal;
}
.theme-control select option { color: var(--text-bright); }

/* Toggle row (label left, switch right) — e.g. Scan Lines on/off */
.theme-control-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}
.theme-control-toggle label { margin-bottom: 0; }

/* CRT-style themed switch built from a checkbox */
.theme-switch {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    width: 44px;
    height: 22px;
    border: 1px solid var(--border);
    background: #000d1a;
    cursor: pointer;
    flex: 0 0 auto;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.theme-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: var(--accent-dim);
    transition: left 0.2s, background 0.2s, box-shadow 0.2s;
}
.theme-switch:checked {
    border-color: var(--accent);
    box-shadow: var(--glow-sm);
}
.theme-switch:checked::after {
    left: 24px;
    background: var(--accent);
    box-shadow: var(--glow-sm);
}

/* ── Dashboard ──────────────────────────────────────────────────────────────── */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.dash-panel {
    position: relative;
    display: flex;
    flex-direction: column;
}
.dash-content { flex: 1; }
.dash-footer {
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--border);
}
.dash-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}
.dash-panel-title {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.dash-stat {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(0,60,90,0.3);
}
.dash-stat-label { font-size: 0.75rem; color: var(--accent-dim); }
.dash-stat-value { font-size: 1rem; color: var(--text-bright); }

/* ── Sparklines (per-panel 1h trend) ────────────────────────────────────────── */
.dash-spark {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.7rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
}
.dash-spark-label {
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    color: var(--accent-dim);
    white-space: nowrap;
}
.dash-spark .spark-svg {
    flex: 1;
    height: 26px;
    width: 100%;
}
.dash-spark .spark-svg polyline {
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
    filter: drop-shadow(0 0 2px var(--glow));
}

.dash-error {
    color: #ff4444;
    font-size: 0.8rem;
    text-align: center;
    padding: 1rem;
}
.dash-loading {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

/* ── Password Manager ───────────────────────────────────────────────────────── */
.pw-table { width: 100%; border-collapse: collapse; }
.pw-table th {
    text-align: left;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--accent-dim);
    text-transform: uppercase;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
}
.pw-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid rgba(0,60,90,0.3);
    font-size: 0.85rem;
    vertical-align: middle;
}
.pw-table tr:hover td { background: rgba(0,255,255,0.03); }

.pw-masked { letter-spacing: 0.2em; color: var(--accent-dim); }
.pw-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }

.pw-search-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    align-items: center;
}

/* ── Bookshelf ──────────────────────────────────────────────────────────────── */

/* ── Notebook ───────────────────────────────────────────────────────────────── */
.note-list { display: flex; flex-direction: column; gap: 0.5rem; }
.note-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.note-item:hover {
    border-color: var(--accent);
    box-shadow: var(--glow-sm);
}
.note-item-meta { font-size: 0.72rem; color: var(--accent-dim); }
.note-item-snippet {
    font-size: 0.8rem;
    color: var(--text);
    opacity: 0.7;
    margin-top: 0.2rem;
    max-width: 500px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Login Page ─────────────────────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.login-logo {
    font-size: 3rem;
    letter-spacing: 0.4em;
    color: var(--accent);
    text-shadow: var(--glow-lg);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.login-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--accent-dim);
    text-transform: uppercase;
    margin-bottom: 3rem;
}

.typewriter-container {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: var(--text);
    min-height: 1.5em;
    margin-bottom: 3rem;
    text-align: center;
}

.typewriter-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--accent);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: typewriter-cursor 0.8s step-end infinite;
}

.lightbeam {
    position: fixed;
    top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, transparent, var(--accent), transparent);
    opacity: 0;
    pointer-events: none;
    animation: lightbeam 6s ease-in-out infinite;
}
.lightbeam:nth-child(2) { animation-delay: 2s; animation-duration: 8s; }
.lightbeam:nth-child(3) { animation-delay: 4s; animation-duration: 7s; }

/* ── Page Header ────────────────────────────────────────────────────────────── */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.page-title {
    font-size: 1.4rem;
    letter-spacing: 0.2em;
}