/* ==========================================================================
   style.css — ESP32 Simulator IoT-02 (Fase 5, Xat C)
   Layout dual: foto placa (esquerra) + panell control (dreta)
   Responsive: una columna en mòbil/tablet (< 768px)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Reset i base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg:         #1a1b26;
    --bg-deep:    #12122a;
    --surface:    #24283b;
    --border:     #3b4261;
    --fg:         #c0caf5;
    --fg-muted:   #565f89;
    --accent:     #7aa2f7;
    --green:      #9ece6a;
    --red:        #f7768e;
    --yellow:     #e0af68;
    --cyan:       #00FFFF;
    --toolbar-bg: #16213e;
    --toolbar-fg: #90caf9;
    --panel-bg:   #0f3460;
}

html, body {
    height: 100%;
    overflow: hidden;
    font-family: 'Segoe UI', 'JetBrains Mono', Arial, sans-serif;
    font-size: 14px;
    color: var(--fg);
    background: var(--bg);
}

/* --------------------------------------------------------------------------
   Estructura principal (#app)
   -------------------------------------------------------------------------- */
#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

/* --------------------------------------------------------------------------
   Barra d'eines (ToolBar)
   -------------------------------------------------------------------------- */
#toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--toolbar-bg);
    color: #fff;
    padding: 0 16px;
    height: 44px;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
    z-index: 10;
}

.app-title {
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 0.5px;
    color: var(--toolbar-fg);
    white-space: nowrap;
}

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: rgba(255,255,255,0.15);
    flex-shrink: 0;
}

/* Barra d'estat dins la toolbar */
.toolbar-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: #90a4ae;
    flex-shrink: 0;
}

/* Punt indicador de connexió */
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    transition: background 0.4s, box-shadow 0.4s;
    flex-shrink: 0;
}

.status-dot.disconnected {
    background: var(--red);
    box-shadow: 0 0 0 transparent;
}

.status-dot.connecting {
    background: var(--accent);
    /* Pulsació animada mentre connecta */
    animation: pulse-connecting 1s ease-in-out infinite;
}

.status-dot.connected {
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
}

@keyframes pulse-connecting {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.3; }
}

.toolbar-mac {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 12px;
    color: var(--yellow);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--yellow);
    width: 17ch;
    outline: none;
    padding: 1px 0;
}

/* Session ID abreujat a la toolbar */
.toolbar-session-id {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 11px;
    color: #90caf9;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    padding: 1px 4px;
    cursor: default;
    user-select: none;
    letter-spacing: 0.02em;
}

/* Botó de còpia del session ID */
.toolbar-copy-btn {
    background: transparent;
    border: none;
    color: #90caf9;
    font-size: 13px;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.15s;
}
.toolbar-copy-btn:hover { opacity: 1; }

.toolbar-spacer { flex-grow: 1; }

#btn-settings {
    background: none;
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s, transform 0.15s;
    flex-shrink: 0;
}

#btn-settings:hover {
    background: rgba(255,255,255,0.1);
    transform: rotate(30deg);
}

/* --------------------------------------------------------------------------
   Àrea principal: layout dual (board + panell)
   -------------------------------------------------------------------------- */
#main-area {
    flex-grow: 1;
    display: grid;
    grid-template-columns: 1fr minmax(300px, 0.45fr);
    overflow: hidden;
}

/* --------------------------------------------------------------------------
   Columna esquerra: placa IoT-02
   -------------------------------------------------------------------------- */
#board-container {
    position: relative;
    overflow: hidden;
    background: var(--bg-deep);
}

#board-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
    user-select: none;
}

/* --------------------------------------------------------------------------
   Columna dreta: panell de control
   -------------------------------------------------------------------------- */
#control-panel {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border-left: 1px solid var(--border);
    overflow: hidden;
}

/* -- Secció compilació -- */
#compile-section {
    flex-shrink: 0;
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

#compile-section h2 {
    color: var(--accent);
    font-size: 13px;
    margin-bottom: 8px;
    font-weight: 600;
}

/* Zona d'upload */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    font-size: 12px;
    color: var(--fg-muted);
}

.upload-zone:hover {
    border-color: var(--accent);
    background: rgba(122,162,247,0.06);
}

/* Feedback visual en arrossegar */
.upload-zone.dragover {
    border-color: var(--green);
    background: rgba(158,206,106,0.1);
    color: var(--green);
    transform: scale(1.01);
}

.upload-zone input[type="file"] { display: none; }

.upload-zone .icon {
    font-size: 1.5rem;
    margin-bottom: 4px;
    display: block;
    transition: transform 0.2s;
}

.upload-zone.dragover .icon { transform: scale(1.3); }

#compile-status {
    font-size: 12px;
    color: var(--fg-muted);
    margin-top: 6px;
    min-height: 1.2em;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Icona de càrrega (spinner) */
.spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(224,175,104,0.3);
    border-top-color: var(--yellow);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.actions-row {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
}

/* Botons */
.btn {
    background: var(--accent);
    color: var(--bg);
    border: none;
    padding: 5px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    font-size: 12px;
    transition: opacity 0.2s, transform 0.1s;
    white-space: nowrap;
}

.btn:hover  { opacity: 0.85; }
.btn:active { transform: scale(0.96); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; transform: none; }

.btn-green { background: var(--green); color: var(--bg); }
.btn-red   { background: var(--red);   color: var(--bg); }
.btn-small { padding: 3px 8px; font-size: 11px; }

/* -- Secció Serial Monitor -- */
#serial-section {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 12px;
    min-height: 0;
}

#serial-section h2 {
    color: var(--accent);
    font-size: 13px;
    margin-bottom: 8px;
    font-weight: 600;
    flex-shrink: 0;
}

#serial-output {
    background: #000;
    color: var(--green);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 11px;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    flex-grow: 1;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
    min-height: 100px;
}

.serial-input-row {
    display: flex;
    gap: 6px;
    margin-top: 6px;
    flex-shrink: 0;
}

.serial-input-row input[type="text"] {
    flex: 1;
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 5px 8px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 12px;
    outline: none;
}

.serial-input-row input[type="text"]:focus {
    border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Components interactius sobre la foto (posicionats en absolute)
   -------------------------------------------------------------------------- */
.interactive-button {
    position: absolute;
    cursor: pointer;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    background: rgba(255,255,255,0.05);
    transition: background 0.1s, opacity 0.1s;
    z-index: 20;
}

.interactive-button:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.6);
}

.interactive-button.pressed {
    background: rgba(255,255,255,0.35);
    opacity: 0.8;
}

.interactive-led {
    position: absolute;
    border-radius: 3px;
    transition: filter 0.2s, box-shadow 0.2s;
    z-index: 20;
    pointer-events: none;
    /* Tooltip via title nativa del navegador */
    cursor: default;
}

/* Tooltip GPIO als LEDs: el text és al title="..." del div,
   afegim un petit indicator visual */
.interactive-led::after {
    content: attr(data-gpio-label);
    position: absolute;
    left: 110%;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.85);
    color: var(--cyan);
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    padding: 2px 5px;
    border-radius: 3px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 30;
}

/* Mostrar tooltip quan el LED té pointer-events per debugging;
   s'activa posant pointer-events: auto momentàniament via JS si cal,
   o via el pare .interactive-led:hover (cal pointer-events: auto al LED) */

.interactive-oled {
    position: absolute;
    background: #000;
    border: 1px solid var(--cyan);
    overflow: hidden;
    z-index: 20;
    pointer-events: none;
}

.oled-canvas {
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
}

.interactive-sensor {
    position: absolute;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 20;
    transition: opacity 0.2s, transform 0.15s;
}

.interactive-sensor:hover {
    opacity: 0.85;
    transform: scale(1.05);
}

.sensor-label {
    color: white;
    font-weight: bold;
    text-align: center;
    line-height: 1.2;
    pointer-events: none;
    font-size: 12px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.ldr-sensor {
    background: rgba(128,128,128,0.45);
    border: 2px solid rgba(150,150,150,0.7);
}

.bme-sensor {
    background: rgba(64,128,160,0.45);
    border: 2px solid rgba(96,144,176,0.7);
}

.sensor-value-display {
    position: absolute;
    background: rgba(0,0,0,0.85);
    color: white;
    font-family: 'JetBrains Mono', monospace;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #606060;
    white-space: nowrap;
    pointer-events: none;
    z-index: 30;
    line-height: 1.4;
    font-size: 12px;
}

/* Popups dels sensors */
.sensor-popup {
    position: fixed;
    background: #1e2030;
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    padding: 16px;
    z-index: 100;
    min-width: 260px;
    max-width: 90vw;   /* No desborda en mòbil */
}

.popup-section { margin-bottom: 14px; }
.popup-section:last-child { margin-bottom: 0; }

.popup-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--accent);
}

.popup-hint {
    font-size: 11px;
    color: var(--fg-muted);
    margin-top: 6px;
    text-align: center;
}

.sensor-popup input[type="range"] {
    width: 100%;
    margin: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   Config Page (Overlay)
   -------------------------------------------------------------------------- */
#config-page {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;           /* toggled via JS: none / flex */
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.config-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 480px;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

.config-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.config-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
}

.config-close {
    background: none;
    border: none;
    color: var(--fg-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
    line-height: 1;
}

.config-close:hover {
    color: var(--red);
    background: rgba(247,118,142,0.1);
}

.config-section {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 14px;
    background: rgba(0,0,0,0.15);
}

.config-section legend {
    padding: 0 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--fg-muted);
    text-transform: uppercase;
}

.config-field {
    margin-top: 10px;
}

.config-field:first-child { margin-top: 0; }

.config-field label {
    display: block;
    font-size: 12px;
    color: var(--fg-muted);
    margin-bottom: 4px;
}

.config-field input[type="text"],
.config-field input[type="password"],
.config-field input[type="number"] {
    width: 100%;
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.config-field input:focus {
    border-color: var(--accent);
}

.config-field small {
    display: block;
    font-size: 10px;
    color: var(--fg-muted);
    margin-top: 3px;
}

/* Checkbox inline */
.config-inline label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--fg);
    cursor: pointer;
    margin-bottom: 0;
}

.config-inline input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Rang mínim/màxim */
.config-range label {
    font-size: 12px;
    color: var(--fg-muted);
    margin-bottom: 6px;
}

.range-inputs {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--fg-muted);
}

.range-inputs input {
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 5px 8px;
    border-radius: 6px;
    font-size: 12px;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}

.range-inputs input:focus { border-color: var(--accent); }

.config-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.config-actions .btn {
    padding: 7px 18px;
    font-size: 13px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.config-error {
    margin-top: 10px;
    padding: 8px 12px;
    background: rgba(247,118,142,0.12);
    border: 1px solid var(--red);
    border-radius: 6px;
    color: var(--red);
    font-size: 12px;
}

/* --------------------------------------------------------------------------
   Responsive: una sola columna en mòbil/tablet (≤ 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {

    /* Layout vertical: foto a dalt, panell a sota */
    #main-area {
        grid-template-columns: 1fr;
        grid-template-rows: 50vh 1fr;  /* Foto ocupa el 50% */
        overflow: hidden;
    }

    /* La foto té alçada limitada; la resta és scrollable dins el panell */
    #board-container {
        max-height: 50vh;
        overflow: hidden;
    }

    /* Panell a sota: scroll intern */
    #control-panel {
        border-left: none;
        border-top: 1px solid var(--border);
        overflow-y: auto;
    }

    /* Serial Monitor: alçada mínima en mòbil */
    #serial-output {
        min-height: 120px;
    }

    /* Amagar elements de la toolbar que sobren */
    .toolbar-separator { display: none; }
    .status-label      { display: none; }

    /* La MAC és massa ampla per mòbil */
    .toolbar-mac { width: 17ch; font-size: 11px; }

    /* Redimensionar el títol */
    .app-title { font-size: 13px; }

    /* Popup de sensors: centrat i limitat */
    .sensor-popup {
        left: 50% !important;
        top: auto !important;
        bottom: 16px;
        transform: translateX(-50%) !important;
        width: calc(100vw - 32px);
        max-width: 360px;
    }

    /* ConfigPage: ocupa gairebé tota la pantalla */
    .config-card {
        padding: 16px;
        max-height: calc(100vh - 20px);
    }
}

/* Pantalla molt estreta (telèfons petits) */
@media (max-width: 480px) {
    #main-area {
        grid-template-rows: 40vh 1fr;
    }

    #board-container {
        max-height: 40vh;
    }

    .range-inputs {
        grid-template-columns: auto 1fr auto 1fr;
        font-size: 11px;
    }

    #toolbar { gap: 8px; padding: 0 10px; }
}