/* ===================================================================
   RUSH_VERSO // SOLAR FEDERATION TERMINAL 2112
   Design System & Comprehensive Stylesheet
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@700;900&family=Orbitron:wght@500;700;900&family=Rajdhani:wght@500;600;700&family=Space+Grotesk:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Rush Chromatic Palette */
  --bg-space: #06070c;
  --bg-panel: rgba(14, 16, 26, 0.78);
  --bg-card: rgba(22, 25, 42, 0.65);
  --bg-card-hover: rgba(30, 35, 58, 0.85);
  --border-subtle: rgba(255, 23, 68, 0.22);
  --border-glow: rgba(255, 23, 68, 0.55);
  --border-gold: rgba(255, 183, 3, 0.35);

  /* Primary Accent: 2112 Crimson Red Star */
  --star-red: #ff1744;
  --star-red-glow: 0 0 18px rgba(255, 23, 68, 0.65), 0 0 40px rgba(213, 0, 0, 0.35);
  --star-red-hover: #ff4569;

  /* Secondary: Moving Pictures Synth Gold */
  --gold-synth: #ffb703;
  --gold-glow: 0 0 14px rgba(255, 183, 3, 0.5);

  /* Tertiary: Signals Cyber Cyan */
  --cyan-signals: #00f0ff;
  --cyan-glow: 0 0 14px rgba(0, 240, 255, 0.5);

  /* Syrinx Nebula Purple */
  --purple-syrinx: #8338ec;

  /* Typography Colors */
  --text-pure: #ffffff;
  --text-main: #e2e8f0;
  --text-muted: #8e9bb0;
  --text-dim: #5a6578;

  /* Radii & Shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.65);
  --glass-backdrop: blur(14px) saturate(160%);

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-space);
  color: var(--text-main);
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Cosmic Canvas */
#starfield-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% 30%, rgba(30, 10, 35, 0.4) 0%, rgba(6, 7, 12, 0.95) 75%);
}

/* Scanline / CRT Retro Overlay (Subtle) */
.scanline-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.02),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.02)
  );
  background-size: 100% 4px, 6px 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}

/* Main Layout Grid */
.app-container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px 20px 16px;
}

/* ===================================================================
   HEADER & CONSOLE BAR
   =================================================================== */
.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
}

.terminal-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--star-red), var(--gold-synth), transparent);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.starman-logo-wrapper {
  position: relative;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-normal);
}

.starman-logo-wrapper:hover {
  transform: scale(1.08) rotate(5deg);
}

.starman-logo-wrapper img,
.starman-logo-wrapper svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 10px rgba(255, 23, 68, 0.7));
}

.starman-pulse-ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid rgba(255, 23, 68, 0.5);
  animation: starPulse 2.8s infinite ease-out;
  pointer-events: none;
}

@keyframes starPulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 0.3; }
  100% { transform: scale(1.35); opacity: 0; }
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: 'Orbitron', monospace;
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffffff 30%, var(--star-red-hover) 85%, var(--gold-synth) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(255, 23, 68, 0.4);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title .badge-2112 {
  font-size: 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--gold-synth);
  border: 1px solid var(--gold-synth);
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 1px;
  background: rgba(255, 183, 3, 0.08);
  box-shadow: 0 0 8px rgba(255, 183, 3, 0.25);
  -webkit-text-fill-color: var(--gold-synth);
}

.brand-subtitle {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Oberheim / Minimoog VU Meter Aesthetic */
.synth-meters-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.meter-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meter-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.vu-bar {
  display: flex;
  gap: 2px;
}

.vu-segment {
  width: 4px;
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 1px;
  transition: background 0.1s ease;
}

.vu-segment.lit-green { background: #10b981; box-shadow: 0 0 4px #10b981; }
.vu-segment.lit-gold { background: var(--gold-synth); box-shadow: 0 0 4px var(--gold-synth); }
.vu-segment.lit-red { background: var(--star-red); box-shadow: 0 0 4px var(--star-red); }

/* Header Control Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-full);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--cyan-signals);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.status-pill:hover {
  background: rgba(0, 240, 255, 0.16);
  border-color: var(--cyan-signals);
  box-shadow: var(--cyan-glow);
}

.status-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan-signals);
  box-shadow: 0 0 8px var(--cyan-signals);
  animation: blinkLive 2s infinite ease-in-out;
}

.status-indicator.error {
  background: var(--star-red);
  box-shadow: 0 0 8px var(--star-red);
}

@keyframes blinkLive {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--transition-fast);
  position: relative;
}

.btn-icon:hover {
  background: rgba(255, 23, 68, 0.15);
  border-color: var(--star-red);
  color: var(--star-red);
  box-shadow: 0 0 12px rgba(255, 23, 68, 0.35);
  transform: translateY(-1px);
}

.btn-icon:active {
  transform: translateY(1px);
}

/* ===================================================================
   MAIN STAGE: SIDEBAR & CONVERSATION VIEW
   =================================================================== */
.main-stage {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  min-height: 0; /* Important for inner flex/scroll */
}

/* --- SIDEBAR: SYRINX ARCHIVES & KNOWLEDGE PRESETS --- */
.terminal-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  padding: 14px;
  overflow: hidden;
  gap: 14px;
}

.sidebar-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold-synth);
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 183, 3, 0.15);
}

.sidebar-scrollable {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-right: 4px;
}

/* Presets & Prompts Cards */
.preset-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-category-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.prompt-card {
  padding: 9px 12px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-align: left;
}

.prompt-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--star-red);
  box-shadow: 0 0 14px rgba(255, 23, 68, 0.2);
  transform: translateX(3px);
}

.prompt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.prompt-album-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--gold-synth);
}

.prompt-card-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-pure);
}

.prompt-card-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Sidebar Footer Info */
.sidebar-footer {
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lyrics-quote-box {
  padding: 8px 10px;
  background: rgba(0, 0, 0, 0.35);
  border-left: 2px solid var(--star-red);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.lyrics-author {
  display: block;
  text-align: right;
  font-style: normal;
  font-size: 0.62rem;
  color: var(--gold-synth);
  margin-top: 4px;
}

/* --- CHAT VIEWPORT (CENTER / RIGHT) --- */
.chat-workspace {
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  position: relative;
}

/* Chat Message History Stream */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
}

/* Welcome Hero (Shown on fresh chat) */
.welcome-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px 20px;
  margin: auto 0;
  max-width: 640px;
  align-self: center;
}

.hero-starman {
  width: 100px;
  height: 100px;
  margin-bottom: 16px;
  animation: floatHero 4s ease-in-out infinite;
}

@keyframes floatHero {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-title {
  font-family: 'Orbitron', monospace;
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--text-pure);
  margin-bottom: 8px;
  text-shadow: 0 0 25px rgba(255, 23, 68, 0.4);
}

.hero-title span {
  color: var(--star-red);
}

.hero-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.hero-pill {
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 23, 68, 0.25);
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-pill:hover {
  background: rgba(255, 23, 68, 0.18);
  border-color: var(--star-red);
  color: #ffffff;
  box-shadow: 0 0 16px rgba(255, 23, 68, 0.35);
  transform: translateY(-2px);
}

/* ===================================================================
   CHAT MESSAGE BUBBLES
   =================================================================== */
.message-row {
  display: flex;
  gap: 12px;
  animation: messageSlideIn 0.25s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-row.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.message-avatar.bot {
  border-color: var(--star-red);
  box-shadow: 0 0 10px rgba(255, 23, 68, 0.4);
}

.message-avatar.bot img {
  width: 24px;
  height: 24px;
}

.message-avatar.user {
  border-color: var(--cyan-signals);
  background: rgba(0, 240, 255, 0.12);
  color: var(--cyan-signals);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.82rem;
}

.message-content-wrapper {
  max-width: 78%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.message-sender-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
}

.message-row.user .message-sender-meta {
  justify-content: flex-end;
}

.message-bubble {
  padding: 13px 18px;
  border-radius: var(--radius-md);
  line-height: 1.6;
  position: relative;
  word-break: break-word;
}

/* User Bubble */
.message-row.user .message-bubble {
  background: linear-gradient(135deg, rgba(131, 56, 236, 0.25), rgba(0, 240, 255, 0.18));
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: #ffffff;
  border-top-right-radius: 2px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* Bot Bubble */
.message-row.bot .message-bubble {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--star-red);
  color: var(--text-main);
  border-top-left-radius: 2px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Markdown styling inside bubbles */
.message-bubble p {
  margin-bottom: 10px;
}

.message-bubble p:last-child {
  margin-bottom: 0;
}

.message-bubble strong {
  color: #ffffff;
  font-weight: 600;
}

.message-bubble em {
  color: var(--gold-synth);
}

.message-bubble ul, .message-bubble ol {
  margin: 8px 0 10px 22px;
}

.message-bubble li {
  margin-bottom: 4px;
}

.message-bubble blockquote {
  border-left: 3px solid var(--gold-synth);
  padding: 6px 12px;
  margin: 10px 0;
  background: rgba(255, 183, 3, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-pure);
}

.message-bubble code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.84em;
  background: rgba(0, 0, 0, 0.4);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--cyan-signals);
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.message-bubble pre {
  margin: 10px 0;
  padding: 12px;
  background: #090a12;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow-x: auto;
}

.message-bubble pre code {
  background: transparent;
  padding: 0;
  border: none;
  font-size: 0.82em;
  color: #e2e8f0;
}

/* Typing Rhythmic Indicator */
.typing-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
}

.typing-bubble {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 23, 68, 0.3);
  border-radius: var(--radius-md);
  border-top-left-radius: 2px;
  box-shadow: 0 0 15px rgba(255, 23, 68, 0.15);
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--star-red);
  animation: drumBeat 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(2) {
  background: var(--gold-synth);
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  background: var(--cyan-signals);
  animation-delay: 0.4s;
}

@keyframes drumBeat {
  0%, 100% { transform: scale(0.6); opacity: 0.3; }
  50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 8px currentColor; }
}

.typing-text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-left: 4px;
}

/* ===================================================================
   CHAT INPUT SECTION
   =================================================================== */
.input-dock {
  padding: 14px 20px;
  background: rgba(10, 12, 20, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.quick-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.active-session-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

.active-session-tag span {
  color: var(--gold-synth);
}

.input-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  background: rgba(22, 25, 42, 0.7);
  border: 1px solid rgba(255, 23, 68, 0.3);
  border-radius: var(--radius-md);
  padding: 6px 10px 6px 14px;
  transition: all var(--transition-fast);
}

.input-row:focus-within {
  border-color: var(--star-red);
  box-shadow: 0 0 20px rgba(255, 23, 68, 0.35);
  background: rgba(26, 30, 52, 0.9);
}

.chat-textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.94rem;
  resize: none;
  max-height: 140px;
  min-height: 24px;
  line-height: 1.5;
  padding: 6px 0;
}

.chat-textarea::placeholder {
  color: var(--text-dim);
  font-style: italic;
}

.btn-transmit {
  height: 42px;
  padding: 0 20px;
  background: linear-gradient(135deg, var(--star-red), #b70024);
  border: 1px solid #ff616f;
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
  box-shadow: 0 0 15px rgba(255, 23, 68, 0.4);
  flex-shrink: 0;
}

.btn-transmit:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--star-red-hover), var(--star-red));
  box-shadow: 0 0 25px rgba(255, 23, 68, 0.7);
  transform: translateY(-1px);
}

.btn-transmit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-transmit svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Footer Telemetry Bar */
.telemetry-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-dim);
}

.telemetry-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.telemetry-item strong {
  color: var(--text-muted);
}

/* ===================================================================
   SETTINGS MODAL: N8N CONNECTION SETUP
   =================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 10, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  max-width: 540px;
  background: #0f111c;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 30px rgba(255, 23, 68, 0.25);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalScale 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalScale {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 16px 20px;
  background: rgba(255, 23, 68, 0.08);
  border-bottom: 1px solid rgba(255, 23, 68, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: 'Orbitron', monospace;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-title svg {
  color: var(--star-red);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--star-red);
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gold-synth);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
  font-family: 'Space Grotesk', sans-serif;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.84rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--star-red);
  box-shadow: 0 0 10px rgba(255, 23, 68, 0.4);
}

.mode-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.mode-option {
  padding: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}

.mode-option.active {
  background: rgba(255, 23, 68, 0.15);
  border-color: var(--star-red);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(255, 23, 68, 0.25);
}

.mode-option-title {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
}

.mode-option-desc {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.modal-footer {
  padding: 14px 20px;
  background: rgba(0, 0, 0, 0.4);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.btn-secondary {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn-primary {
  padding: 8px 18px;
  background: var(--star-red);
  border: 1px solid var(--star-red-hover);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 0 14px rgba(255, 23, 68, 0.4);
}

.btn-primary:hover {
  background: var(--star-red-hover);
  box-shadow: 0 0 20px rgba(255, 23, 68, 0.6);
}

/* ===================================================================
   CUSTOM SCROLLBAR
   =================================================================== */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 23, 68, 0.3);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 23, 68, 0.6);
}

/* ===================================================================
   RESPONSIVE DESIGN (TABLETS & PHONES)
   =================================================================== */
@media (max-width: 900px) {
  .app-container {
    padding: 8px 8px 10px;
  }

  .main-stage {
    grid-template-columns: 1fr;
  }

  .terminal-sidebar {
    display: none; /* Can be toggled on mobile via drawer button */
  }

  .terminal-sidebar.mobile-open {
    display: flex;
    position: fixed;
    inset: 60px 10px 10px;
    z-index: 50;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.9);
  }

  .synth-meters-container {
    display: none;
  }

  .brand-title {
    font-size: 1.05rem;
  }

  .brand-subtitle {
    font-size: 0.68rem;
  }

  .message-content-wrapper {
    max-width: 90%;
  }

  .messages-container {
    padding: 14px;
  }
}