:root {
    --bg-color: #0b0f19;
    --header-bg: #000b21;
    /* <-- El azul oscuro de tu logo */
    --header-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.4);
    --error-color: #ef4444;
    --success-color: #10b981;
}

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

html, body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100%;
    height: 100vh;
    height: 100dvh;
    width: 100%;
    width: 100vw;
    max-width: 100vw;
    max-height: 100vh;
    overflow: hidden !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}

html::-webkit-scrollbar, 
body::-webkit-scrollbar,
*::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

* {
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}

.app-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
}

/* ============ RIEL INFERIOR ============ */
.side-rail {
    order: 2;
    width: 100%;
    height: 56px;
    background: var(--header-bg);
    border-top: 1px solid var(--header-border);
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 0 10px max(0px, env(safe-area-inset-bottom)) 10px;
    gap: 10px;
    z-index: 1000;
    flex-shrink: 0;
    overflow-x: auto;
}

.rail-brand {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-glow);
    flex-shrink: 0;
}

.rail-brand .material-icons-round {
    font-size: 1.3rem;
}

.rail-brand-sub {
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 700;
}

.rail-divider {
    width: 1px;
    height: 26px;
    background: rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.rail-tabs {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.rail-btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.rail-btn .material-icons-round {
    font-size: 1.1rem;
}

.rail-label {
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.rail-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.rail-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.rail-btn-tfte {
    background: linear-gradient(135deg, #0f172a, #000000);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.rail-btn-tfte.active {
    background: #000;
    border-color: var(--accent-color);
}

.rail-btn-tfte:hover {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

.rail-select-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.rail-spacer {
    flex: 1;
}

.rail-actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.rail-icon-btn {
    position: relative;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 7px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.rail-icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.rail-icon-btn .material-icons-round {
    font-size: 1.2rem;
}

.zoom-level-label {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--text-secondary);
    min-width: 30px;
    text-align: center;
    user-select: none;
}

.rail-dot-status {
    position: absolute;
    top: 2px;
    right: 2px;
    pointer-events: none;
}

.rail-dot-status .status-text {
    display: none;
}

.rail-dot-status .pulse-ring {
    width: 7px;
    height: 7px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(148, 163, 184, 0.3);
}

/* ============ ASISTENTE FLOTANTE ============ */
.assistant-float {
    position: fixed;
    right: 8px;
    bottom: calc(56px + 50px + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 1000;
    pointer-events: none;
}

.assistant-float > * {
    pointer-events: auto;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(30, 41, 59, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 4px 10px;
    border-radius: 999px;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.status-indicator.listening,
.status-indicator.thinking,
.status-indicator.speaking {
    opacity: 1;
    transform: translateY(0);
}

.pulse-ring {
    width: 8px;
    height: 8px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(148, 163, 184, 0.3);
}

.status-text {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.listening .pulse-ring {
    background-color: var(--error-color);
    box-shadow: 0 0 10px var(--error-color);
    animation: pulse-error 1.5s infinite;
}

.listening .status-text {
    color: var(--error-color);
}

.thinking .pulse-ring,
.processing .pulse-ring {
    background-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
    animation: pulse-accent 1.5s infinite;
}

.thinking .status-text,
.processing .status-text {
    color: var(--accent-color);
}

.speaking .pulse-ring {
    background-color: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
    animation: pulse-accent 1.5s infinite;
}

.speaking .status-text {
    color: var(--success-color);
}

.fab {
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
}

.fab:hover {
    transform: scale(1.05);
}

.fab-main {
    width: 56px;
    height: 56px;
    background: linear-gradient(145deg, #2563eb, #1d4ed8);
    box-shadow: 0 6px 18px -2px var(--accent-glow);
}

.fab-main .material-icons-round {
    font-size: 1.7rem;
}

.fab-main:active {
    transform: scale(0.95);
}

.fab-main.active {
    background: linear-gradient(145deg, #ef4444, #dc2626);
    box-shadow: 0 6px 20px -2px rgba(239, 68, 68, 0.6);
    animation: float-small 2s ease-in-out infinite;
}

.fab-small {
    width: 38px;
    height: 38px;
    background: linear-gradient(145deg, #475569, #334155);
    box-shadow: 0 4px 10px -2px rgba(0, 0, 0, 0.4);
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

.fab-small.active,
#agentModeBtn.active {
    background: linear-gradient(145deg, #10b981, #059669) !important;
    color: white !important;
    box-shadow: 0 0 14px rgba(16, 185, 129, 0.6) !important;
    border: 1px solid rgba(16, 185, 129, 0.4);
}

.agent-mode-wrap {
    position: relative;
}

.text-panel {
    z-index: 1005;
    position: fixed;
    right: 80px;
    bottom: calc(56px + 80px + env(safe-area-inset-bottom));
    left: 16px;
    max-width: 420px;
    margin-left: auto;
    background: rgba(30, 41, 59, 0.97);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

textarea#textInput {
    resize: none;
    overflow-y: auto;
    max-height: 150px;
    min-height: 24px;
    box-sizing: border-box;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

textarea#textInput::-webkit-scrollbar {
    display: none;
}

.popups-container {
    position: fixed;
    right: 16px;
    bottom: calc(56px + 80px + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 950;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.text-panel.hidden {
    display: none;
}

/* =====================================================================
   FEAT-02: SMART @-MENTIONS DROPDOWN Y CHIPS
   ===================================================================== */
.at-mention-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    right: 0;
    max-height: 220px;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 12px;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6), 0 0 16px rgba(56, 189, 248, 0.15);
    overflow-y: auto;
    z-index: 1010;
    display: flex;
    flex-direction: column;
    padding: 6px;
    gap: 3px;
    scrollbar-width: thin;
    scrollbar-color: rgba(56, 189, 248, 0.3) transparent;
}

.at-mention-dropdown::-webkit-scrollbar {
    width: 4px;
}

.at-mention-dropdown::-webkit-scrollbar-thumb {
    background: rgba(56, 189, 248, 0.3);
    border-radius: 4px;
}

.at-mention-dropdown.hidden {
    display: none !important;
}

.at-mention-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    color: #cbd5e1;
    transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
    user-select: none;
}

.at-mention-item:hover,
.at-mention-item.active {
    background: rgba(56, 189, 248, 0.2);
    color: #38bdf8;
    transform: translateX(2px);
}

.at-mention-item .file-icon {
    font-size: 1rem;
    color: #38bdf8;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
}

.at-mention-item .file-name {
    font-weight: 600;
    color: #f1f5f9;
}

.at-mention-item .file-dir {
    font-size: 0.72rem;
    color: #64748b;
    margin-left: auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 140px;
}

.at-mention-chip {
    display: inline-block;
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: 6px;
    padding: 1px 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    font-weight: 600;
}

.text-panel input,
.text-panel textarea {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    padding: 9px 12px;
    outline: none;
    width: 100%;
}

.text-panel input::placeholder,
.text-panel textarea::placeholder {
    color: var(--text-secondary);
}

.text-panel input:focus,
.text-panel textarea:focus {
    border-color: var(--accent-color);
}

#folderInput {
    font-size: 0.75rem;
}

.text-panel-row {
    display: flex;
    gap: 6px;
}

.text-panel-row input,
.text-panel-row textarea {
    flex: 1;
    resize: none;
    overflow-y: hidden;
}

.text-panel-row button {
    flex-shrink: 0;
    width: 38px;
    background: var(--accent-color);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.text-panel-row button:hover {
    background: #2563eb;
}

.backend-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    background: rgba(30, 41, 59, 0.97);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 1001;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    min-width: 110px;
}

.backend-menu.hidden {
    display: none;
}

.backend-menu .backend-option {
    background: transparent;
    border: none;
    color: #f1f5f9;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
}

.backend-menu .backend-option:hover {
    background: rgba(255, 255, 255, 0.08);
}

.backend-menu .backend-option.active {
    color: var(--accent-color);
    font-weight: 600;
}

.backend-menu .backend-option[data-backend="chatgpt"].active {
    color: #34d399;
    background: rgba(16, 185, 129, 0.18);
    font-weight: 600;
}

.backend-menu .backend-option[data-backend="claude"].active {
    color: #c084fc;
    background: rgba(168, 85, 247, 0.18);
    font-weight: 600;
}

.backend-menu .backend-option[data-backend="gemini"].active {
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.18);
    font-weight: 600;
}

#agentModeBtn.active.backend-chatgpt {
    background: linear-gradient(145deg, #10b981, #059669) !important;
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.7) !important;
    border-color: rgba(16, 185, 129, 0.6) !important;
}

#agentModeBtn.active.backend-claude {
    background: linear-gradient(145deg, #a855f7, #7e22ce) !important;
    box-shadow: 0 0 16px rgba(168, 85, 247, 0.7) !important;
    border-color: rgba(168, 85, 247, 0.6) !important;
}

#agentModeBtn.active.backend-gemini {
    background: linear-gradient(145deg, #3b82f6, #1d4ed8) !important;
    box-shadow: 0 0 16px rgba(59, 130, 246, 0.7) !important;
    border-color: rgba(59, 130, 246, 0.6) !important;
}

.main-content {
    flex: 1;
    width: 100%;
    background: #0f172a;
    display: flex;
    position: relative;
    overflow: hidden !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}

.main-content::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

.app-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-origin: top left;
    border: none;
    overflow: hidden !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
    background-color: #0f172a !important;
}

.app-iframe::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
    background: transparent !important;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse-error {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }

    70% {
        transform: scale(1.2);
        box-shadow: 0 0 0 6px rgba(239, 68, 68, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

@keyframes pulse-accent {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }

    70% {
        transform: scale(1.2);
        box-shadow: 0 0 0 6px rgba(59, 130, 246, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

@keyframes float-small {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-2px);
    }
}

.task-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    border-left: 3px solid #38bdf8;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.task-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-pending {
    background: rgba(234, 179, 8, 0.2);
    color: #fde047;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.badge-completed {
    background: rgba(34, 197, 94, 0.2);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-waiting {
    background: rgba(56, 189, 248, 0.2);
    color: #7dd3fc;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.task-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.task-text {
    color: white;
    word-break: break-word;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

.task-response,
.repo-response {
    color: #a78bfa;
    font-size: 0.85rem;
    word-break: break-word;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

/* Modal Sin Créditos y Corrección de Bugs Visuales */
.modal-oculto {
    display: none !important;
}

.modal-visible {
    display: flex !important;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 15, 25, 0.98);
    /* Oscurecido, sin blur para no romper select dropdowns */
    z-index: 99999;
    justify-content: center;
    align-items: center;
}

.modal-contenido {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 16px;
    padding: 24px;
    width: 90%;
    max-width: 420px;
    text-align: center;
    color: white;
    font-family: 'Inter', sans-serif;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-contenido h2 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: #f8fafc;
}

.modal-contenido p {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.5;
}

.modal-botones {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-primario {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-secundario {
    background: #475569;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-primario:hover {
    background: #2563eb;
}

.btn-secundario:hover {
    background: #334155;
}

.task-card.collapsed .task-text,
.task-card.collapsed .repo-response,
.task-card.collapsed .task-row:not(:first-child) {
    display: none !important;
}

.task-card.collapsed .chevron-icon {
    transform: rotate(-90deg);
}

/* ============ MODO FULLSCREEN ZEN / INMERSIVO ============ */
body.zen-fullscreen {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
}

body.zen-fullscreen .app-shell,
body.zen-fullscreen .main-content {
    height: 100% !important;
    width: 100% !important;
}

body.zen-fullscreen .assistant-float {
    z-index: 10000 !important;
}

body.zen-fullscreen .text-panel {
    z-index: 10002 !important;
}

body.zen-fullscreen #textPanelBackdrop {
    z-index: 10001 !important;
}

body.zen-fullscreen .response-toast,
body.zen-fullscreen #responseToast {
    z-index: 10005 !important;
}

.response-toast.hidden,
.response-toast.hidden * {
    display: none !important;
    pointer-events: none !important;
    visibility: hidden !important;
}

/* ==========================================================================
   FEAT-01: BADGE DINÁMICO DE ARCHIVO ACTIVO EN TIEMPO REAL
   ========================================================================== */
.active-file-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    padding: 3px 8px;
    margin: 0 4px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 190px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    user-select: none;
}

.active-file-indicator:hover {
    background: rgba(30, 41, 59, 0.85);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}

.active-file-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #10b981;
    box-shadow: 0 0 6px #10b981;
    flex-shrink: 0;
    animation: active-file-pulse 2s infinite ease-in-out;
}

@keyframes active-file-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.6; }
}

.active-file-icon {
    font-size: 1rem !important;
    color: #38bdf8;
    flex-shrink: 0;
}

.active-file-name {
    font-size: 0.72rem;
    font-weight: 500;
    color: #e2e8f0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: 0.02em;
}

/* Colores dinámicos por tipo de extensión */
.active-file-indicator[data-ext="tsx"] .active-file-icon,
.active-file-indicator[data-ext="jsx"] .active-file-icon { color: #38bdf8; }
.active-file-indicator[data-ext="ts"] .active-file-icon,
.active-file-indicator[data-ext="js"] .active-file-icon { color: #facc15; }
.active-file-indicator[data-ext="css"] .active-file-icon,
.active-file-indicator[data-ext="scss"] .active-file-icon { color: #ec4899; }
.active-file-indicator[data-ext="html"] .active-file-icon { color: #f97316; }