/* === RESET & BASE === */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

:root {
    --jarvis-primary: #00BFFF;
    --jarvis-secondary: #001a33;
    --jarvis-accent: #FFD700;
    --jarvis-success: #00FF00;
    --jarvis-bg: #0a0a0a;
    --jarvis-surface: #1a1a2e;
    --jarvis-surface-light: #2a2a4e;
    --jarvis-text: #ffffff;
    --jarvis-text-dim: #888888;
    --jarvis-glow: 0 0 20px rgba(0, 191, 255, 0.3);
    --jarvis-glow-strong: 0 0 40px rgba(0, 191, 255, 0.5);
}

html, body {
    width: 100%; height: 100%; overflow: hidden;
    background: var(--jarvis-bg); color: var(--jarvis-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* === SCREENS === */
.screen {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    display: none; flex-direction: column; overflow: hidden;
}
.screen.active { display: flex; }

/* === LOADING SCREEN === */
#loading-screen {
    align-items: center; justify-content: center;
    background: radial-gradient(ellipse at center, var(--jarvis-secondary) 0%, var(--jarvis-bg) 70%);
    z-index: 1000;
}
.jarvis-ring {
    width: 120px; height: 120px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--jarvis-primary);
    border-right-color: var(--jarvis-primary);
    animation: spin 1.5s linear infinite;
    position: relative;
}
.jarvis-ring::before {
    content: ''; position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-bottom-color: var(--jarvis-accent);
    border-left-color: var(--jarvis-accent);
    animation: spin 2s linear infinite reverse;
}
.jarvis-ring::after {
    content: 'J'; position: absolute;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-size: 48px; font-weight: bold;
    color: var(--jarvis-primary);
    text-shadow: 0 0 20px rgba(0, 191, 255, 0.5);
}
@keyframes spin { to { transform: rotate(360deg); } }
.jarvis-title {
    margin-top: 30px;
    font-size: 28px; letter-spacing: 8px;
    color: var(--jarvis-primary); text-shadow: var(--jarvis-glow);
}
.jarvis-subtitle {
    margin-top: 10px; font-size: 14px; color: var(--jarvis-text-dim);
}
.progress-bar {
    width: 200px; height: 4px;
    background: var(--jarvis-surface);
    border-radius: 2px; margin-top: 20px;
    overflow: hidden;
}
.progress-fill {
    height: 100%; width: 0%;
    background: linear-gradient(90deg, var(--jarvis-primary), var(--jarvis-accent));
    border-radius: 2px; transition: width 0.5s ease;
}
#loading-status {
    margin-top: 15px; font-size: 12px;
    color: var(--jarvis-text-dim); font-family: monospace;
}
.model-status {
    margin-top: 8px; font-size: 11px;
    color: var(--jarvis-text-dim); font-family: monospace;
}
.download-btn {
    margin-top: 20px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--jarvis-primary), var(--jarvis-accent));
    border: none; border-radius: 25px;
    color: var(--jarvis-bg); font-size: 14px;
    font-weight: bold; cursor: pointer;
    transition: all 0.3s; text-transform: uppercase;
    letter-spacing: 1px;
}
.download-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--jarvis-glow-strong);
}
.download-hint {
    margin-top: 10px; font-size: 11px;
    color: var(--jarvis-text-dim);
}

/* === MAIN SCREEN === */
#main-screen {
    background: linear-gradient(180deg, var(--jarvis-bg) 0%, var(--jarvis-secondary) 100%);
}

/* HUD Superior */
.hud-top {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 20px;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 191, 255, 0.1);
}
.hud-status {
    display: flex; align-items: center; gap: 8px;
}
.status-dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--jarvis-success);
    box-shadow: 0 0 10px var(--jarvis-success);
    transition: all 0.3s ease;
}
.status-dot.listening {
    background: var(--jarvis-primary);
    box-shadow: 0 0 15px var(--jarvis-primary);
    animation: pulse 1s ease infinite;
}
.status-dot.processing {
    background: var(--jarvis-accent);
    box-shadow: 0 0 15px var(--jarvis-accent);
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}
.status-text {
    font-size: 14px; font-weight: bold; font-family: monospace;
    color: var(--jarvis-success); transition: color 0.3s;
}
.status-text.listening { color: var(--jarvis-primary); }
.status-text.processing { color: var(--jarvis-accent); }

/* Badges */
.hud-badges {
    display: flex; gap: 6px;
}
.badge {
    font-size: 9px; font-weight: bold; letter-spacing: 1px;
    padding: 3px 8px; border-radius: 10px;
    font-family: monospace;
}
.badge.offline {
    background: rgba(0, 255, 0, 0.15);
    color: var(--jarvis-success);
    border: 1px solid rgba(0, 255, 0, 0.3);
}
.badge.stt {
    background: rgba(0, 191, 255, 0.15);
    color: var(--jarvis-primary);
    border: 1px solid rgba(0, 191, 255, 0.3);
}
.hud-time {
    font-size: 14px; font-family: monospace;
    color: var(--jarvis-text-dim);
}

/* Visualizador */
.visualizer-container {
    height: 80px;
    display: flex; align-items: center; justify-content: center;
    padding: 0 20px;
}
#audio-visualizer {
    width: 100%; height: 60px;
}

/* Centro - Boton */
.center-control {
    flex: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 15px;
}
.jarvis-button {
    width: 150px; height: 150px;
    border-radius: 50%; border: none;
    background: transparent; position: relative;
    cursor: pointer; outline: none;
}
.button-ring {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%; border-radius: 50%;
    border: 3px solid var(--jarvis-primary);
    opacity: 0.3; transition: all 0.3s ease;
}
.jarvis-button:hover .button-ring,
.jarvis-button:active .button-ring {
    opacity: 1; box-shadow: var(--jarvis-glow);
}
.jarvis-button.listening .button-ring {
    opacity: 1; border-color: var(--jarvis-primary);
    animation: ring-pulse 1.5s ease infinite;
}
@keyframes ring-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.7; }
}
.button-core {
    position: absolute; top: 15px; left: 15px;
    right: 15px; bottom: 15px; border-radius: 50%;
    background: linear-gradient(135deg, var(--jarvis-secondary), var(--jarvis-surface));
    display: flex; align-items: center; justify-content: center;
    box-shadow: inset 0 0 20px rgba(0, 191, 255, 0.1);
}
.mic-icon {
    width: 40px; height: 40px;
    fill: var(--jarvis-primary); transition: fill 0.3s;
}
.jarvis-button.listening .mic-icon {
    fill: var(--jarvis-accent);
}
.button-label {
    font-size: 14px; color: var(--jarvis-text-dim);
    text-align: center;
}
.transcript {
    font-size: 16px; color: var(--jarvis-primary);
    text-align: center; min-height: 24px;
    font-style: italic; padding: 0 20px;
}

/* Panel de comandos */
.commands-panel {
    padding: 15px 20px;
    background: rgba(26, 26, 46, 0.5);
    border-top: 1px solid rgba(0, 191, 255, 0.1);
}
.panel-title {
    font-size: 12px; text-transform: uppercase;
    letter-spacing: 2px; color: var(--jarvis-primary);
    margin-bottom: 12px;
}
.commands-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.command-card {
    background: var(--jarvis-surface);
    border: 1px solid rgba(0, 191, 255, 0.1);
    border-radius: 12px; padding: 12px 8px;
    text-align: center; cursor: pointer;
    transition: all 0.2s ease;
}
.command-card:hover, .command-card:active {
    border-color: var(--jarvis-primary);
    box-shadow: var(--jarvis-glow);
    transform: translateY(-2px);
}
.cmd-icon { font-size: 24px; display: block; margin-bottom: 4px; }
.cmd-name { font-size: 11px; font-weight: 600; color: var(--jarvis-text); display: block; }
.cmd-example { font-size: 9px; color: var(--jarvis-text-dim); display: block; margin-top: 2px; }

/* Log de conversacion */
.conversation-log {
    flex: 1; overflow-y: auto; padding: 15px 20px;
    display: flex; flex-direction: column; gap: 10px;
    scroll-behavior: smooth;
}
.log-entry {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 10px 14px; border-radius: 12px;
    max-width: 85%; animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.log-entry.user {
    align-self: flex-end;
    background: var(--jarvis-surface);
    border: 1px solid rgba(0, 191, 255, 0.2);
}
.log-entry.jarvis {
    align-self: flex-start;
    background: var(--jarvis-surface-light);
    border: 1px solid rgba(0, 191, 255, 0.1);
}
.log-entry.system {
    align-self: center;
    background: rgba(0, 191, 255, 0.05);
    border: 1px dashed rgba(0, 191, 255, 0.2);
    font-size: 12px; color: var(--jarvis-text-dim);
}
.log-time { font-size: 10px; color: var(--jarvis-text-dim); font-family: monospace; white-space: nowrap; }
.log-text { font-size: 14px; line-height: 1.4; }

/* Barra de entrada */
.input-bar {
    display: flex; gap: 10px;
    padding: 12px 20px;
    background: rgba(10, 10, 10, 0.9);
    border-top: 1px solid rgba(0, 191, 255, 0.1);
}
#text-input {
    flex: 1; background: var(--jarvis-surface);
    border: 1px solid rgba(0, 191, 255, 0.2);
    border-radius: 25px; padding: 12px 18px;
    color: var(--jarvis-text); font-size: 15px;
    outline: none; transition: border-color 0.3s;
}
#text-input:focus {
    border-color: var(--jarvis-primary);
    box-shadow: 0 0 10px rgba(0, 191, 255, 0.1);
}
#text-input::placeholder { color: var(--jarvis-text-dim); }
.send-button {
    width: 48px; height: 48px; border-radius: 50%;
    border: none; background: var(--jarvis-primary);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.2s;
}
.send-button:hover, .send-button:active {
    background: var(--jarvis-accent); transform: scale(1.05);
}
.send-button svg { width: 22px; height: 22px; fill: var(--jarvis-bg); }

/* Modal */
.modal {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none; align-items: center; justify-content: center;
    z-index: 2000; backdrop-filter: blur(5px);
}
.modal.active { display: flex; }
.modal-content {
    background: var(--jarvis-surface);
    border: 1px solid rgba(0, 191, 255, 0.2);
    border-radius: 20px; padding: 30px;
    max-width: 340px; width: 90%;
    text-align: center; box-shadow: var(--jarvis-glow-strong);
}
.modal-content h2 {
    color: var(--jarvis-primary); margin-bottom: 10px;
    font-size: 22px;
}
.modal-content p {
    color: var(--jarvis-text-dim); margin-bottom: 20px;
    font-size: 14px; line-height: 1.5;
}
.modal-btn {
    width: 100%; padding: 14px; border: none;
    border-radius: 12px; font-size: 15px;
    font-weight: 600; cursor: pointer;
    margin-bottom: 10px; transition: all 0.2s;
}
.modal-btn.primary {
    background: var(--jarvis-primary); color: var(--jarvis-bg);
}
.modal-btn.primary:hover { background: var(--jarvis-accent); }
.modal-btn.secondary {
    background: transparent; color: var(--jarvis-text-dim);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--jarvis-primary); border-radius: 2px; }

/* Responsive */
@media (min-width: 768px) {
    .commands-grid { grid-template-columns: repeat(6, 1fr); }
    .jarvis-button { width: 180px; height: 180px; }
    .mic-icon { width: 50px; height: 50px; }
}