:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
    --water: #3b82f6;
    --warning: #f59e0b;
    --ready: #0ea5e9; /* Light blue for ready state */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    padding-bottom: 2rem;
}

header {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-dark));
    padding: 1.5rem 1rem 0 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
}

header h1 {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom: 3px solid var(--primary);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
}

.view-section {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.view-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

section { margin-top: 1.5rem; }

section h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
    border-left: 4px solid var(--primary);
    color: var(--text-main);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.toggle-card {
    cursor: pointer;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.toggle-card:not(.selector-card):hover {
    transform: translateY(-2px);
    border-color: rgba(255,255,255,0.1);
}

.toggle-card:not(.selector-card):active {
    transform: translateY(0);
}

.toggle-card h3 {
    font-size: 1rem;
    margin: 0.5rem 0 0.25rem 0;
}

.toggle-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.card-header {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 9999px;
}

.badge-off { background: rgba(255,255,255,0.1); color: var(--text-muted); }
.badge-on { background: var(--success); color: white; }

.badge-dry { background: rgba(255,255,255,0.05); color: #64748b; border: 1px dashed #475569; }
.badge-ready { background: rgba(14, 165, 233, 0.2); color: #38bdf8; border: 1px solid rgba(14, 165, 233, 0.4); }
.badge-water { background: rgba(59, 130, 246, 0.3); color: #93c5fd; border: 1px solid var(--water); box-shadow: 0 0 5px rgba(59,130,246,0.5); }

.toggle-card.active {
    border-color: var(--success);
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.1);
}

/* Water states */
.toggle-card.dry {
    /* No special border */
}

.toggle-card.water-ready {
    border-color: var(--ready);
    box-shadow: inset 0 0 10px rgba(14, 165, 233, 0.05);
}

.toggle-card.water-flow::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(59, 130, 246, 0.15), transparent);
    pointer-events: none;
    animation: flowBg 2s infinite linear;
}

@keyframes flowBg {
    0% { background-position: 0 0; }
    100% { background-position: 0 20px; }
}

.toggle-card.broken {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: var(--danger);
}

.selector-select {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.5rem;
    border-radius: 6px;
    background: var(--bg-dark);
    color: var(--text-main);
    border: 1px solid var(--primary);
    font-size: 0.9rem;
    outline: none;
}

.output-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.output-card.active-output {
    border-color: var(--water);
    background: linear-gradient(145deg, var(--bg-card), #172554);
}

.output-card.danger {
    border-color: var(--danger);
    background: linear-gradient(145deg, var(--bg-card), #450a0a);
    animation: pulse 2s infinite;
}

.output-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #334155;
}

.status-indicator.flow {
    background: var(--water);
    box-shadow: 0 0 8px var(--water);
}

.output-card.danger .status-indicator.flow {
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

#network-container {
    width: 100%;
    height: 60vh;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    background: var(--bg-card);
}

#mapCanvas {
    background-color: #f1f5f9;
    border-radius: 12px;
    border: 2px solid rgba(255,255,255,0.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    height: auto;
    cursor: crosshair;
}

.map-pin {
    position: absolute;
    width: 24px;
    height: 24px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 3px 6px rgba(0,0,0,0.4);
    border: 2px solid white;
    transition: transform 0.2s, background-color 0.2s;
    z-index: 10;
}
.map-pin:hover {
    transform: translate(-50%, -50%) scale(1.2);
    background-color: var(--primary-dark);
}
.map-pin.active {
    background-color: var(--success);
}

.draggable-pin {
    position: absolute;
    width: 32px;
    height: 32px;
    background-color: var(--danger);
    color: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: bold;
    cursor: grab;
    box-shadow: 0 4px 10px rgba(0,0,0,0.6);
    border: 2px solid white;
    z-index: 20;
    pointer-events: auto;
    touch-action: none;
}
.draggable-pin:active {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.2);
    background-color: var(--warning);
}

.draggable-element {
    position: absolute;
    padding: 2px 6px;
    background-color: var(--primary);
    color: white;
    border-radius: 4px;
    transform: translate(-50%, -50%);
    font-size: 11px;
    font-weight: bold;
    cursor: grab;
    box-shadow: 0 4px 10px rgba(0,0,0,0.6);
    border: 1px solid white;
    z-index: 15;
    pointer-events: auto;
    touch-action: none;
    white-space: nowrap;
}
.draggable-element:active {
    cursor: grabbing;
    background-color: var(--primary-dark);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* =============================
   TOOLBAR SATÈL·LIT
============================= */
.satelit-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 14px;
}
.toolbar-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.tool-btn {
    background: var(--surface-2);
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 7px 14px;
    border-radius: 7px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.15s;
}
.tool-btn:hover { background: var(--primary); color: white; }
.tool-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

.action-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 7px 14px;
    border-radius: 7px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.15s;
}
.action-btn:hover { background: var(--primary-dark); }
.action-btn.danger { background: var(--danger); }
.action-btn.danger:hover { background: #b91c1c; }

.shape-select {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 7px 10px;
    border-radius: 7px;
    font-size: 0.85rem;
    cursor: pointer;
}
.tool-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Canvas dibuix cursor crosshair */
#satelitCanvas.draw-mode {
    cursor: crosshair !important;
}

@media (max-width: 600px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
    #network-container { height: 50vh; }
    .satelit-toolbar { flex-direction: column; align-items: flex-start; }
}