/* ==========================================================================
   🎨 DESIGN SYSTEM & CSS VARIABLES
   ========================================================================== */
:root {
  --bg-color: #0b0f19;
  --panel-bg: rgba(15, 23, 42, 0.75);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-violet: #8b5cf6;
  --accent-coral: #f43f5e;
  --accent-warning: #f59e0b;

  --input-bg: rgba(30, 41, 59, 0.7);
  --input-border: rgba(255, 255, 255, 0.12);
  --input-focus: #06b6d4;

  --terminal-bg: #030712;
  --terminal-border: rgba(255, 255, 255, 0.08);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --shadow-main: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-title: 'Outfit', system-ui, sans-serif;
  --font-code: 'Fira Code', monospace;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.12) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 100vh;
}

/* ==========================================================================
   HEADER & SYSTEM STATUS BAR
   ========================================================================== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-main);
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon {
  font-size: 2.2rem;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(16, 185, 129, 0.2));
  border: 1px solid rgba(6, 182, 212, 0.3);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.brand h1 {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand h1 span {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-emerald));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.system-status-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 14px;
  border-radius: var(--radius-md);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  position: relative;
}

.dot.online {
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
}

.dot.online::after {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border-radius: 50%;
  border: 2px solid var(--accent-emerald);
  animation: pulse 2s infinite;
}

.dot.offline {
  background-color: var(--accent-coral);
  box-shadow: 0 0 8px var(--accent-coral);
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2); opacity: 0; }
}

.status-info {
  display: flex;
  flex-direction: column;
}

.status-info .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.status-info .val {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
}

.btn-mini {
  background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-mini:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-cyan-glow);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   MAIN GRID LAYOUT
   ========================================================================== */
.main-content {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 24px;
  flex: 1;
}

@media (max-width: 1080px) {
  .main-content {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-main);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.panel-header h2 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}

.badge-tag {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* ==========================================================================
   FORM STYLES & MODE SELECTOR
   ========================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.col-6 { flex: 1; }
.col-3 { width: 30%; }

.form-label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-main);
  font-size: 0.9rem;
  outline: none;
  transition: all 0.2s ease;
}

.form-control:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px var(--accent-cyan-glow);
}

select.form-control {
  cursor: pointer;
}

select.form-control option {
  background: #0f172a;
  color: #fff;
}

/* Mode Cards */
.mode-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mode-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.mode-card:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(6, 182, 212, 0.3);
}

.mode-card.active {
  background: rgba(6, 182, 212, 0.1);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.mode-card input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--accent-cyan);
}

.mode-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
}

.mode-desc {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 10px 25px -5px var(--accent-cyan-glow);
  transition: all 0.25 ease;
  margin-top: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px var(--accent-cyan-glow);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ==========================================================================
   TERMINAL & LOG VISOR
   ========================================================================== */
.terminal-panel {
  flex: 1;
}

.terminal-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-indicator {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
}

.status-indicator.running {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
  border-color: rgba(245, 158, 11, 0.3);
  animation: pulse 1.5s infinite;
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  color: #fff;
}

/* Visor Terminal */
.terminal-window {
  background-color: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: var(--radius-md);
  padding: 16px;
  height: 520px;
  overflow-y: auto;
  font-family: var(--font-code);
  font-size: 0.825rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.8);
}

.terminal-window::-webkit-scrollbar {
  width: 6px;
}

.terminal-window::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.log-line {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  word-break: break-word;
}

.log-line .time {
  color: var(--text-dim);
  user-select: none;
  font-weight: 500;
}

.log-line.system-welcome {
  color: var(--accent-cyan);
}

.log-line.type-info {
  color: #e2e8f0;
}

.log-line.type-success {
  color: var(--accent-emerald);
  font-weight: 600;
}

.log-line.type-warning {
  color: var(--accent-warning);
}

.log-line.type-error {
  color: var(--accent-coral);
  font-weight: 600;
}

/* Result Card Banner */
.result-card {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  box-shadow: 0 0 20px var(--accent-emerald-glow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeIn 0.4s ease;
}

.result-card.error {
  border-color: var(--accent-coral);
  background: rgba(244, 63, 94, 0.1);
  box-shadow: 0 0 20px rgba(244, 63, 94, 0.2);
}

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

.result-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
}

.result-body {
  font-size: 0.875rem;
  color: var(--text-main);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.app-footer {
  text-align: center;
  padding: 16px;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}