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

:root {
    --color-bg: #0f1117;
    --color-surface: #1a1d27;
    --color-border: #2a2d3a;
    --color-primary: #6c63ff;
    --color-primary-hover: #857dff;
    --color-text: #e8eaf0;
    --color-muted: #7b7f96;
    --color-success: #00d4aa;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    --color-event-bg: #12151f;
    --radius: 8px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
    padding: 2rem 1rem 5rem;
}

h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    color: var(--color-text);
    margin-bottom: 0.3rem;
}

h1 span {
    color: var(--color-primary);
}

.tagline {
    color: var(--color-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* ── Footer ── */

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 2rem;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.82rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

footer strong { color: var(--color-text); }
footer a { color: var(--color-primary); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── Layout ── */

.app {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ── Bouton SSE ── */

.btn-sse {
    font-size: 0.78rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn-sse:hover:not(:disabled) {
    background: var(--color-border);
    color: var(--color-text);
}

.btn-sse[data-state="connected"] {
    background: var(--color-error);
    border-color: var(--color-error);
    color: #fff;
}
.btn-sse[data-state="connected"]:hover {
    background: #dc2626;
    border-color: #dc2626;
}

.btn-sse[data-state="disconnected"] {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.btn-sse[data-state="disconnected"]:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

/* ── Status badge ── */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.status-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-badge.connecting {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}
.status-badge.connecting .dot {
    background: var(--color-warning);
    animation: pulse 1.2s infinite;
}

.status-badge.connected {
    background: rgba(0, 212, 170, 0.1);
    border-color: rgba(0, 212, 170, 0.3);
    color: var(--color-success);
}
.status-badge.connected .dot {
    background: var(--color-success);
}

.status-badge.disconnected {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-error);
}
.status-badge.disconnected .dot {
    background: var(--color-error);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

/* ── Card ── */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
}

.card-title {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 1rem;
}

/* ── Publish form ── */

.publish-form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.publish-form input[type="text"] {
    flex: 1;
    min-width: 200px;
    background: var(--color-event-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.55rem 0.9rem;
    outline: none;
    transition: border-color 0.15s;
}

.publish-form input[type="text"]:focus {
    border-color: var(--color-primary);
}

.publish-form input[type="text"]::placeholder {
    color: var(--color-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.25rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
    white-space: nowrap;
}

.btn:hover { background: var(--color-primary-hover); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.75rem;
    padding: 0.3rem 0.75rem;
}
.btn-secondary:hover {
    background: var(--color-border);
    color: var(--color-text);
}

/* ── Feedback publish ── */

#publish-feedback {
    font-size: 0.8rem;
    margin-top: 0.6rem;
    min-height: 1.2em;
    transition: color 0.2s;
}
#publish-feedback.ok  { color: var(--color-success); }
#publish-feedback.err { color: var(--color-error); }

/* ── Events list ── */

.events-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.event-count {
    font-size: 0.75rem;
    color: var(--color-muted);
}

#events-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 420px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

#events-list::-webkit-scrollbar { width: 4px; }
#events-list::-webkit-scrollbar-track { background: transparent; }
#events-list::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.event-item {
    background: var(--color-event-bg);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 0.65rem 0.9rem;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.75rem;
    animation: slide-in 0.15s ease;
}

.event-item.system {
    border-left-color: var(--color-warning);
    opacity: 0.75;
}

@keyframes slide-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.event-time {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-muted);
    grid-row: 1;
    white-space: nowrap;
}

.event-id {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-muted);
    grid-row: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.event-data {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text);
    grid-column: 2;
    grid-row: 1 / 3;
    word-break: break-all;
    white-space: pre-wrap;
    align-self: center;
}

.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--color-muted);
    font-size: 0.85rem;
}

/* ── Info bar ── */

.info-bar {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.75rem;
    color: var(--color-muted);
}

.info-bar span { display: flex; gap: 0.35rem; }
.info-bar strong { color: var(--color-text); font-weight: 500; }

/* ── Topic pill ── */

.topic-pill {
    display: inline-block;
    background: rgba(108, 99, 255, 0.12);
    border: 1px solid rgba(108, 99, 255, 0.25);
    color: var(--color-primary);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.1rem 0.45rem;
}