frontend/css/main.css

/* ============================================
   AutoForge — Design System
   Dark developer-tool UI with glassmorphism
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ─────────────────────────── */

:root {
  /* Base palette */
  --bg-primary:     #0a0e17;
  --bg-secondary:   #111827;
  --bg-tertiary:    #1a2236;
  --bg-card:        rgba(17, 24, 39, 0.7);
  --bg-glass:       rgba(17, 24, 39, 0.5);

  /* Accent palette */
  --accent-primary:   #6366f1;
  --accent-secondary: #818cf8;
  --accent-glow:      rgba(99, 102, 241, 0.3);
  --accent-success:   #34d399;
  --accent-warning:   #fbbf24;
  --accent-danger:    #f87171;
  --accent-info:      #38bdf8;

  /* Gradients */
  --gradient-brand:  linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --gradient-card:   linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(168,85,247,0.05) 100%);
  --gradient-glow:   radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(99,102,241,0.06), transparent 40%);

  /* Text */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;
  --text-on-accent: #ffffff;

  /* Borders */
  --border-primary:   rgba(148, 163, 184, 0.1);
  --border-secondary: rgba(148, 163, 184, 0.06);
  --border-accent:    rgba(99, 102, 241, 0.3);

  /* Sizing */
  --sidebar-width:  260px;
  --header-height:  64px;
  --radius-sm:      6px;
  --radius-md:      10px;
  --radius-lg:      16px;
  --radius-xl:      20px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg:  0 8px 30px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Timing */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}


/* ── Reset ─────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-primary);
}

button {
  font-family: inherit;
  cursor: pointer;
}

input, textarea, select {
  font-family: inherit;
}


/* ── Animated Background ───────────────────── */

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg-primary);
  overflow: hidden;
}

.bg-mesh::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse 600px 600px at 20% 30%, rgba(99,102,241,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 80% 20%, rgba(168,85,247,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 60% 80%, rgba(236,72,153,0.04) 0%, transparent 70%);
  animation: meshFloat 20s ease-in-out infinite;
}

@keyframes meshFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33%      { transform: translate(2%, -2%) rotate(1deg); }
  66%      { transform: translate(-1%, 1%) rotate(-0.5deg); }
}


/* ── Login Page ────────────────────────────── */

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  animation: cardAppear 0.6s var(--transition-slow) both;
}

@keyframes cardAppear {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo h1 {
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.login-logo p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.login-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-primary);
}

.login-tab {
  flex: 1;
  padding: 0.625rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.login-tab.active {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}

.login-tab:hover:not(.active) {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}


/* ── Forms ─────────────────────────────────── */

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input::placeholder {
  color: var(--text-muted);
}

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

.form-input:hover:not(:focus) {
  border-color: rgba(148, 163, 184, 0.2);
}

.form-error {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-danger);
  font-size: 0.8125rem;
  animation: shake 0.3s ease-in-out;
}

.form-error.visible {
  display: block;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-4px); }
  75%      { transform: translateX(4px); }
}


/* ── Buttons ───────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}

.btn:hover::after {
  background: rgba(255,255,255,0.06);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.btn-secondary:hover {
  border-color: var(--border-accent);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}


/* ── App Layout ────────────────────────────── */

.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-primary);
}

.sidebar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.125rem;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.nav-link:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-link.active {
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-secondary);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent-primary);
  border-radius: 0 2px 2px 0;
}

.nav-icon {
  font-size: 1.125rem;
  width: 1.25rem;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--border-primary);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.user-badge:hover {
  background: var(--bg-tertiary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-on-accent);
  flex-shrink: 0;
}

.user-info {
  overflow: hidden;
}

.user-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.6875rem;
  color: var(--text-muted);
}


/* ── Main Content ──────────────────────────── */

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.page-header {
  padding: 2rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--border-secondary);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.page-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.page-body {
  padding: 2rem 2.5rem;
}


/* ── Cards ─────────────────────────────────── */

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
}


/* ── Stats Grid ────────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  margin-top: 0.25rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-change {
  font-size: 0.75rem;
  color: var(--accent-success);
  margin-top: 0.25rem;
}


/* ── Workflow List ─────────────────────────── */

.workflow-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.workflow-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.workflow-item:hover {
  border-color: var(--border-accent);
  background: var(--bg-tertiary);
}

.workflow-status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.workflow-status.pending  { background: var(--accent-warning); box-shadow: 0 0 8px rgba(251,191,36,0.4); }
.workflow-status.running  { background: var(--accent-info); box-shadow: 0 0 8px rgba(56,189,248,0.4); animation: pulse 2s infinite; }
.workflow-status.success  { background: var(--accent-success); box-shadow: 0 0 8px rgba(52,211,153,0.4); }
.workflow-status.failed   { background: var(--accent-danger); box-shadow: 0 0 8px rgba(248,113,113,0.4); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

.workflow-details {
  flex: 1;
  min-width: 0;
}

.workflow-prompt {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.workflow-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.125rem;
}

.workflow-arrow {
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.workflow-item:hover .workflow-arrow {
  transform: translateX(4px);
  color: var(--accent-secondary);
}


/* ── Create Workflow ───────────────────────── */

.create-section {
  margin-bottom: 2rem;
}

.prompt-input {
  width: 100%;
  min-height: 120px;
  padding: 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  resize: vertical;
  transition: all var(--transition-fast);
  outline: none;
}

.prompt-input::placeholder {
  color: var(--text-muted);
}

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

.create-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
}


/* ── Empty State ───────────────────────────── */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.empty-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.empty-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 360px;
}


/* ── Status Badge ──────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-pending  { background: rgba(251,191,36,0.15); color: var(--accent-warning); }
.badge-running  { background: rgba(56,189,248,0.15); color: var(--accent-info); }
.badge-success  { background: rgba(52,211,153,0.15); color: var(--accent-success); }
.badge-failed   { background: rgba(248,113,113,0.15); color: var(--accent-danger); }


/* ── Spinner ───────────────────────────────── */

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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


/* ── Responsive ────────────────────────────── */

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .page-header,
  .page-body {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}


/* ── Scrollbar ─────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-primary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}


/* ── Toast ─────────────────────────────────── */

.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  padding: 0.875rem 1.25rem;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  animation: toastIn 0.3s ease-out;
  max-width: 380px;
}

.toast.success { border-left: 3px solid var(--accent-success); }
.toast.error   { border-left: 3px solid var(--accent-danger); }
.toast.info    { border-left: 3px solid var(--accent-info); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.toast-exit {
  animation: toastOut 0.2s ease-in forwards;
}

@keyframes toastOut {
  to { opacity: 0; transform: translateX(20px); }
}


/* ── Page Transitions ──────────────────────── */

.page-section {
  display: none;
}

.page-section.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}