:root {
    --bg:        #1a1a2e;
    --surface:   #16213e;
    --carte:     #0f3460;
    --accent:    #e94560;
    --vert:      #00b894;
    --rouge:     #d63031;
    --texte:     #eaeaea;
    --muted:     #a0aec0;
}

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

body {
    background: var(--bg);
    color: var(--texte);
    font-family: system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- En-tête --- */
header {
    background: var(--surface);
    padding: 0.6rem 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--carte);
}
header h1 { font-size: 0.95rem; font-weight: 700; }
.header-title {
    min-width: 0;
}
.header-clock {
    display: block;
    margin-top: 0.1rem;
    color: var(--muted);
    font-family: "Courier New", monospace;
    font-size: 0.68rem;
}

/* --- Badges --- */
.badge {
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}
.badge-ok  { background: var(--vert);  color: #000; }
.badge-err { background: var(--rouge); color: #fff; }

/* --- Navigation --- */
nav {
    display: flex;
    background: var(--surface);
    border-bottom: 1px solid var(--carte);
}
.tab {
    flex: 1;
    padding: 0.55rem 0;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    transition: color 0.15s, border-color 0.15s;
}
.tab svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    pointer-events: none;
}
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* --- Contenu principal --- */
main { flex: 1; padding: 0.65rem; }

.onglet        { display: none; }
.onglet.actif  { display: block; }

/* --- Dashboard --- */
.grille {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.45rem;
}
.grille-3 { grid-template-columns: repeat(3, 1fr); }

.carte {
    background: var(--carte);
    border-radius: 0.55rem;
    padding: 0.45rem 0.35rem;
    text-align: center;
    border: 2px solid transparent;
    transition: border-color 0.2s, transform 0.1s;
}
.carte-on { border-color: var(--vert); }

/* Long press feedback — user-select uniquement sur les cartes relais */
#carte-relay1, #carte-relay2 {
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
}
.press-hold {
    border-color: var(--accent) !important;
    transform: scale(0.95);
    transition: transform 0.1s, border-color 0.1s !important;
}
@keyframes flash-save {
    0%   { background: var(--accent); }
    100% { background: var(--carte); }
}
.press-done { animation: flash-save 0.5s ease-out forwards; }

.etiquette {
    font-size: 0.58rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.18rem;
}
.valeur {
    font-size: 1.05rem;
    font-weight: 700;
}
.valeur-compacte {
    font-size: 0.82rem;
    overflow-wrap: anywhere;
}
.val-on  { color: var(--vert); }
.val-off { color: var(--muted); }

.dash-section {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    font-weight: 700;
    padding: 0.3rem 0 0.15rem;
}
.dash-hint {
    font-weight: 400;
    color: var(--muted);
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.56rem;
}

/* --- Commandes --- */
.ligne-commande {
    background: var(--surface);
    border-radius: 0.65rem;
    padding: 0.7rem 0.75rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.label-cmd {
    flex: 1;
    font-weight: 500;
    font-size: 0.9rem;
    min-width: 0;
}

/* --- Boutons --- */
.btn {
    padding: 0.55rem 1rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--carte);
    color: var(--texte);
    white-space: nowrap;
    transition: opacity 0.15s, box-shadow 0.15s;
    touch-action: manipulation;
}
.btn:active   { opacity: 0.75; }
.btn-actif    { background: var(--accent); color: #fff; }
.btn-vert     { background: var(--vert);   color: #000; }
.btn-rouge    { background: var(--rouge);  color: #fff; }
.btn-dim      { opacity: 0.3; }
.btn-glow-vert  { box-shadow: 0 0 10px var(--vert); }
.btn-glow-rouge { box-shadow: 0 0 10px var(--rouge); }

/* --- Voyant LED relais --- */
.led {
    display: inline-block;
    width: 12px; height: 12px;
    border-radius: 50%;
    vertical-align: middle;
    margin-left: 6px;
    transition: background 0.2s, box-shadow 0.2s;
}
.led-on  { background: var(--vert);  box-shadow: 0 0 7px var(--vert); }
.led-off { background: #444;         box-shadow: none; }
.btn-primaire {
    display: inline-block;
    text-decoration: none;
    background: var(--accent);
    color: #fff;
    margin-top: 1.2rem;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
}

/* --- Règles --- */
.regle-item {
    background: var(--surface);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.regle-desc { flex: 1; font-size: 0.85rem; line-height: 1.5; }
.regle-id   { font-size: 0.7rem; color: var(--muted); }
.regle-desactivee { opacity: 0.45; }

.regle-form {
    background: var(--surface);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-top: 1rem;
}
.form-titre {
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}
.form-ligne {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    gap: 0.5rem;
}
.form-ligne label {
    width: 90px;
    font-size: 0.8rem;
    color: var(--muted);
    flex-shrink: 0;
}
.form-ligne select,
.form-ligne input {
    flex: 1;
    background: var(--carte);
    border: none;
    border-radius: 0.4rem;
    padding: 0.4rem 0.6rem;
    color: var(--texte);
    font-size: 0.85rem;
}
.btn-plein { display: block; width: 100%; margin-top: 0.75rem; text-align: center; }
.btn-sm    { padding: 0.3rem 0.7rem; font-size: 0.75rem; }

.form-section-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    font-weight: 700;
    margin: 0.8rem 0 0.35rem;
    border-bottom: 1px solid var(--carte);
    padding-bottom: 0.25rem;
}

/* --- Toast notification --- */
#toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(1rem);
    background: var(--rouge);
    color: #fff;
    padding: 0.55rem 1.2rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
    white-space: nowrap;
    z-index: 999;
}
#toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* --- Modales --- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.65);
}
.modal.hidden { display: none; }
.modal-box {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--carte);
    border-radius: 0.75rem;
    padding: 1rem;
}
.modal-title {
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.modal-list {
    display: grid;
    gap: 0.4rem;
}
.modal-row {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    background: var(--carte);
    border-radius: 0.45rem;
    padding: 0.55rem 0.65rem;
    font-size: 0.82rem;
}
.modal-row span {
    color: var(--muted);
    font-family: "Courier New", monospace;
}
.modal-empty {
    color: var(--muted);
    font-size: 0.85rem;
}

/* --- Lignes relais désactivées en mode Auto --- */
.row-disabled { opacity: 0.4; pointer-events: none; }

/* --- Textes d'aide onglets --- */
.aide {
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.55;
    background: var(--surface);
    border-left: 3px solid var(--accent);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 0.55rem 0.75rem;
    margin-bottom: 0.75rem;
}
.aide strong { color: var(--texte); }

/* --- Board image --- */
.board-img {
    display: block;
    width: 100%;
    max-width: 700px;
    height: auto;
    margin: 0.75rem auto 0;
    border-radius: 0.75rem;
    border: 1px solid var(--carte);
}
.ota-info {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

/* --- Historique / Graphes --- */
.hist-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.hist-toggle .btn { flex: 1; }
.active-mode { background: var(--accent) !important; color: #fff !important; opacity: 1 !important; }
.hist-debug {
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--carte);
    border-radius: 0.5rem;
    padding: 0.45rem 0.6rem;
    margin-bottom: 0.75rem;
    font-family: "Courier New", monospace;
    font-size: 0.68rem;
    line-height: 1.35;
}
.graphe-conteneur {
    background: var(--surface);
    border-radius: 0.75rem;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    overflow: hidden;
}
.graphe-titre {
    font-size: 0.75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
canvas {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0.4rem;
}

/* --- Debug console --- */
.debug-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
}
.debug-actions .btn {
    flex: 1;
    margin-top: 0;
}
.debug-meta {
    color: var(--muted);
    font-size: 0.75rem;
    margin-bottom: 0.45rem;
}
.debug-console {
    width: 100%;
    min-height: 60vh;
    max-height: 68vh;
    overflow: auto;
    background: #070b12;
    color: #d7f7df;
    border: 1px solid var(--carte);
    border-radius: 0.55rem;
    padding: 0.75rem;
    font-family: "Courier New", monospace;
    font-size: 0.72rem;
    line-height: 1.45;
    white-space: pre-wrap;
    word-break: break-word;
}

/* --- WiFi info --- */
.wifi-val { font-family: monospace; font-size: 0.9rem; color: var(--texte); }

/* --- RS485 wiring info --- */
.rs485-schema {
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
    line-height: 1.4;
    color: var(--texte);
    background: var(--fond);
    border-radius: 0.4rem;
    padding: 0.6rem 0.75rem;
    overflow-x: auto;
    white-space: pre;
    margin: 0.5rem 0;
}
.rs485-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    margin: 0.5rem 0;
}
.rs485-table th, .rs485-table td {
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--carte);
    text-align: left;
}
.rs485-table th { background: var(--fond); color: var(--muted); }
.fil {
    display: inline-block;
    padding: 0.1rem 0.45rem;
    border-radius: 0.3rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
}

/* --- WiFi scan --- */
.wifi-ssid-row {
    display: flex;
    gap: 0.4rem;
    flex: 1;
}
.wifi-ssid-row input { flex: 1; min-width: 0; }

.wifi-actions {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.5rem;
}
.wifi-actions .btn { flex: 1; }

.wifi-scan-list {
    background: var(--carte);
    border-radius: 0.4rem;
    margin: 0.25rem 0 0.5rem;
    max-height: 12rem;
    overflow-y: auto;
}
.wifi-scan-list.hidden { display: none; }

.wifi-scan-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0.65rem;
    cursor: pointer;
    border-bottom: 1px solid var(--surface);
    font-size: 0.82rem;
    transition: background 0.1s;
}
.wifi-scan-item:last-child { border-bottom: none; }
.wifi-scan-item:hover { background: #1a3a6e; }
.wifi-scan-wait { color: var(--muted); cursor: default; justify-content: center; }
.wifi-scan-wait:hover { background: none; }
.wifi-scan-ssid { font-weight: 500; }
.wifi-scan-rssi { font-size: 0.72rem; color: var(--muted); white-space: nowrap; margin-left: 0.5rem; }

.wifi-val { color: var(--texte); font-size: 0.85rem; }
.wifi-connected { color: var(--vert); font-weight: 600; }

/* --- Onglet Config EPEVER --- */
.ec-statusbar {
    background: var(--carte);
    border-radius: 0.45rem;
    padding: 0.45rem 0.7rem;
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 0.65rem;
    border-left: 3px solid var(--muted);
}
.ec-statusbar.ec-ok  { color: var(--vert);  border-left-color: var(--vert); }
.ec-statusbar.ec-err { color: var(--rouge); border-left-color: var(--rouge); }

.ec-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.ec-actions .btn { flex: 1; min-width: 4.5rem; text-align: center; }

.ec-field-unit {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex: 1;
}
.ec-field-unit .ec-field { flex: 1; min-width: 0; }
.ec-unit {
    font-size: 0.7rem;
    color: var(--muted);
    white-space: nowrap;
}

.ec-aide {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--muted);
    cursor: help;
    margin-left: 0.2rem;
    vertical-align: middle;
}

.ec-import-label { cursor: pointer; }

.ec-btn-write {
    margin-top: 0.5rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* --- Pied de page --- */
footer {
    text-align: center;
    padding: 0.45rem;
    font-size: 0.7rem;
    color: var(--muted);
    background: var(--surface);
    border-top: 1px solid var(--carte);
}