/* ==========================================================================
   Intelligence Anti-Bully System — Alert Monitor
   Professional monitoring console
   ========================================================================== */

:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-subtle: #f8fafc;
    --surface-muted: #f1f5f9;

    --border: #e2e8f0;
    --border-strong: #cbd5e1;

    --text: #0f172a;
    --text-secondary: #334155;
    --muted: #64748b;

    --accent: #2563eb;
    --accent-soft: #eff6ff;

    --danger: #dc2626;
    --danger-strong: #b91c1c;
    --danger-soft: #fef2f2;
    --danger-border: #fecaca;

    --success: #15803d;
    --success-soft: #f0fdf4;
    --success-border: #bbf7d0;

    --warning: #b45309;
    --warning-soft: #fffbeb;
    --warning-border: #fde68a;

    --font-sans: "Segoe UI Variable", "Segoe UI", system-ui, -apple-system,
        "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Cascadia Code", "SFMono-Regular", Consolas,
        "Liberation Mono", monospace;

    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

p,
h1,
h2,
h3,
blockquote,
dl,
dd {
    margin: 0;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

button,
input {
    font: inherit;
}

svg {
    display: block;
}

::selection {
    background: var(--accent-soft);
    color: var(--accent);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex="-1"]:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

/* Header ------------------------------------------------------------------ */

.app-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(10px);
}

@supports not (backdrop-filter: blur(10px)) {
    .app-header {
        background: var(--surface);
    }
}

.app-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
    max-width: 1240px;
    min-height: 68px;
    margin: 0 auto;
    padding: 0 32px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-name {
    overflow: hidden;
    color: var(--muted);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.brand h1 {
    margin-top: 2px;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.status-area {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.statuses {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 11px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    font-size: 12px;
    line-height: 1;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.status-chip strong {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: capitalize;
}

.status-chip[data-state="error"],
.status-chip[data-state="offline"],
.status-chip[data-state="disconnected"],
.status-chip[data-state="unavailable"] {
    border-color: var(--danger-border);
    background: #fffafa;
}

.status-chip[data-state="error"] strong,
.status-chip[data-state="offline"] strong,
.status-chip[data-state="disconnected"] strong,
.status-chip[data-state="unavailable"] strong {
    color: var(--danger-strong);
}

.dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    flex: none;
    border-radius: 50%;
    background: #94a3b8;
}

.status-chip[data-state="connected"] .dot,
.status-chip[data-state="online"] .dot {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.12);
}

.status-chip[data-state="connecting"] .dot,
.status-chip[data-state="reconnecting"] .dot,
.status-chip[data-state="unknown"] .dot {
    background: #d97706;
}

.status-chip[data-state="error"] .dot,
.status-chip[data-state="offline"] .dot,
.status-chip[data-state="disconnected"] .dot,
.status-chip[data-state="unavailable"] .dot {
    background: var(--danger);
}

.status-chip[data-state="connected"] .dot {
    animation: live-pulse 2.4s ease-in-out infinite;
}

@keyframes live-pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.45;
    }
}

.reconnect-button {
    height: 32px;
    padding: 0 12px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background-color 120ms ease, border-color 120ms ease;
}

.reconnect-button:hover {
    border-color: #94a3b8;
    background: var(--surface-subtle);
}

/* Shell ------------------------------------------------------------------- */

.app-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 24px;
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 28px 32px 48px;
}

.content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

.sidebar {
    position: sticky;
    top: 92px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Page heading ------------------------------------------------------------ */

.page-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    padding: 2px 2px 0;
}

.eyebrow {
    margin-bottom: 6px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-heading h2 {
    font-size: 28px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

.feed-count {
    margin-top: 7px;
    color: var(--muted);
    font-size: 12.5px;
    font-variant-numeric: tabular-nums;
}

.page-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.upload-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background-color 120ms ease, border-color 120ms ease;
}

.upload-button:hover {
    border-color: #94a3b8;
    background: var(--surface-subtle);
}

.upload-button svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.clear-button {
    flex: none;
    height: 34px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background-color 120ms ease, border-color 120ms ease,
        color 120ms ease;
}

.clear-button:hover {
    border-color: var(--danger-border);
    background: var(--danger-soft);
    color: var(--danger-strong);
}

/* Notices ----------------------------------------------------------------- */

.notice {
    padding: 10px 12px;
    border: 1px solid;
    border-radius: var(--radius-md);
    font-size: 12.5px;
    line-height: 1.5;
}

.notice.is-ok {
    border-color: var(--success-border);
    background: var(--success-soft);
    color: var(--success);
}

.notice.is-error {
    border-color: var(--danger-border);
    background: var(--danger-soft);
    color: var(--danger-strong);
}

/* Panels ------------------------------------------------------------------ */

.panel {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 13px 20px;
    border-bottom: 1px solid var(--border);
    background: #fcfdff;
}

.panel-title {
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.panel-meta {
    overflow: hidden;
    max-width: 55%;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 10.5px;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* Empty state ------------------------------------------------------------- */

.empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 56px 24px 60px;
    text-align: center;
}

.empty-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 14px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface-muted);
    color: #94a3b8;
}

.empty-icon svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.empty-kicker {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.empty[data-state="connected"] .dot {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.12);
}

.empty[data-state="pending"] .dot {
    background: #d97706;
}

.empty[data-state="offline"] .dot {
    background: var(--danger);
}

.empty h3 {
    margin-top: 12px;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

.empty p:last-child {
    max-width: 440px;
    margin-top: 6px;
    color: var(--muted);
    font-size: 12.5px;
    line-height: 1.6;
}

.topic {
    padding: 1px 5px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface-subtle);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11.5px;
}

/* Alerts ------------------------------------------------------------------ */

.alert {
    position: relative;
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.alert:last-child {
    border-bottom: 0;
}

.alert.is-waiting {
    box-shadow: inset 3px 0 0 var(--danger);
}

.alert.is-new {
    animation: alert-settle 2.4s ease-out;
}

@keyframes alert-settle {
    from {
        background: var(--danger-soft);
    }
    to {
        background: transparent;
    }
}

.alert-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.alert-location {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
    overflow-wrap: anywhere;
}

.alert-time {
    margin-top: 3px;
    color: var(--muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.alert-origin {
    display: inline-block;
    margin-left: 8px;
    padding: 1px 6px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface-muted);
    color: var(--muted);
    font-size: 10.5px;
    font-weight: 600;
    line-height: 1.5;
    vertical-align: 1px;
}

.alert-state {
    display: inline-flex;
    align-items: center;
    flex: none;
    padding: 4px 9px;
    border: 1px solid;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    line-height: 1.4;
    white-space: nowrap;
}

.is-waiting .alert-state {
    border-color: var(--danger-border);
    background: var(--danger-soft);
    color: var(--danger-strong);
}

.is-acknowledged .alert-state {
    border-color: var(--success-border);
    background: var(--success-soft);
    color: var(--success);
}

.alert-transcript {
    margin-top: 14px;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-left: 3px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface-subtle);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.is-waiting .alert-transcript {
    border-left-color: var(--danger);
    background: #fffbfb;
}

.alert-analysis {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 24px;
    margin-top: 12px;
}

.alert-analysis span {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
}

.key {
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.alert-analysis strong {
    color: var(--text);
    font-size: 12.5px;
    font-weight: 600;
}

.alert-reasons {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 8px;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 12.5px;
    line-height: 1.55;
}

.alert-reasons .key {
    padding-top: 1px;
}

.alert-reasons span:last-child {
    min-width: 0;
    overflow-wrap: anywhere;
}

.alert-foot {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    min-height: 34px;
    margin-top: 14px;
}

.ack-button {
    height: 34px;
    padding: 0 14px;
    border: 1px solid var(--text);
    border-radius: var(--radius-sm);
    background: var(--text);
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background-color 120ms ease, border-color 120ms ease;
}

.ack-button:hover {
    border-color: #1e293b;
    background: #1e293b;
}

.ack-button:disabled {
    opacity: 0.6;
    cursor: progress;
}

.ack-line {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--success);
    font-size: 12px;
    font-weight: 500;
}

.ack-line::before {
    content: "";
    width: 6px;
    height: 6px;
    flex: none;
    border-radius: 50%;
    background: currentColor;
}

/* Sidebar ----------------------------------------------------------------- */

.topics {
    padding: 4px 0;
}

.topics > div {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding: 9px 20px;
}

.topics > div + div {
    border-top: 1px solid var(--surface-muted);
}

.topics dt {
    flex: none;
    color: var(--muted);
    font-size: 12px;
}

.topics dd {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 10.5px;
    line-height: 1.45;
    text-align: right;
    overflow-wrap: anywhere;
}

.event-log {
    max-height: 320px;
    overflow-y: auto;
    padding: 6px 0;
}

.event-log:empty::before {
    content: "No connection events yet.";
    display: block;
    padding: 14px 20px;
    color: var(--muted);
    font-size: 12px;
}

.event-log li {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 10px;
    padding: 8px 20px;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.45;
}

.event-log li + li {
    border-top: 1px solid var(--surface-muted);
}

.event-log li span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.event-log time {
    padding-top: 1px;
    color: var(--muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.event-log::-webkit-scrollbar {
    width: 8px;
}

.event-log::-webkit-scrollbar-thumb {
    border: 2px solid var(--surface);
    border-radius: 999px;
    background: var(--border-strong);
}

/* Footer ------------------------------------------------------------------ */

.page-footer {
    padding: 4px 2px 0;
}

.footer-note {
    color: var(--muted);
    font-size: 11.5px;
    line-height: 1.6;
}

/* Responsive -------------------------------------------------------------- */

@media (max-width: 1080px) {
    .app-shell {
        grid-template-columns: minmax(0, 1fr);
    }

    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: start;
    }
}

@media (max-width: 720px) {
    .app-header__inner {
        flex-wrap: wrap;
        gap: 12px;
        min-height: 0;
        padding: 12px 16px;
    }

    .status-area {
        width: 100%;
        justify-content: space-between;
    }

    .app-shell {
        padding: 20px 16px 32px;
    }

    .page-heading {
        align-items: flex-start;
        flex-wrap: wrap;
        gap: 12px;
    }

    .page-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .page-heading h2 {
        font-size: 24px;
    }

    .panel-head {
        padding: 12px 16px;
    }

    .alert {
        padding: 16px;
    }

    .empty {
        padding: 44px 16px 48px;
    }

    .topics > div,
    .event-log li {
        padding-right: 16px;
        padding-left: 16px;
    }

    .event-log:empty::before {
        padding-right: 16px;
        padding-left: 16px;
    }

    .sidebar {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 460px) {
    .brand-name {
        font-size: 10px;
    }

    .brand h1 {
        font-size: 16px;
    }

    .status-chip {
        gap: 6px;
        padding: 0 9px;
        font-size: 11px;
    }

    .page-heading h2 {
        font-size: 22px;
    }

    .panel-meta {
        display: none;
    }

    .alert-head {
        flex-wrap: wrap;
        gap: 8px;
    }

    .alert-foot .ack-button {
        width: 100%;
        height: 38px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}