frontend/src/app.css

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  /* ── Light theme (default) ──────────────────────────── */
  :root {
    --bg:            #FAF9F7;
    --surface:       #FFFFFF;
    --surface2:      #F5F4F0;
    --surface3:      #ECEAE4;
    --border:        rgba(0,0,0,0.12);
    --border-strong: rgba(0,0,0,0.22);
    --text:          #1A1A1A;
    --text2:         #666560;
    --text3:         #999791;
    --accent:        #D97449;
    --accent-hover:  #C4623D;
    --accent-text:   #FFFFFF;
    --success:       #2D7D52;
    --success-bg:    #F0FAF4;
    --warning:       #B5620A;
    --warning-bg:    #FFF8F0;
    --error:         #C0392B;
    --error-bg:      #FFF0EE;
    --code-bg:       #F0EDE8;
    --shadow:        0 1px 3px rgba(0,0,0,0.08);
  }

  /* ── Dark theme ─────────────────────────────────────── */
  [data-theme="dark"] {
    --bg:            #1A1917;
    --surface:       #242220;
    --surface2:      #2E2C29;
    --surface3:      #393733;
    --border:        rgba(255,255,255,0.10);
    --border-strong: rgba(255,255,255,0.18);
    --text:          #E8E6E1;
    --text2:         #9B9891;
    --text3:         #6B6965;
    --accent:        #E8855A;
    --accent-hover:  #D9724A;
    --accent-text:   #FFFFFF;
    --success:       #4CAF80;
    --success-bg:    #0F2D1E;
    --warning:       #E8A030;
    --warning-bg:    #2A1F0A;
    --error:         #E05555;
    --error-bg:      #2A0F0F;
    --code-bg:       #161513;
    --shadow:        0 1px 3px rgba(0,0,0,0.30);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    min-height: 100vh;
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    transition: background-color 0.35s ease, color 0.35s ease;
  }

  /* Smooth theme transition on theme-sensitive elements — exclude pseudo-elements to preserve CSS animations */
  * {
    transition: background-color 0.35s ease, color 0.2s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }
  /* Disable transition for elements that need instant response or use CSS animations */
  input, textarea, button, a, [class*="nav-"], [class*="btn-"], canvas {
    transition: none;
  }

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

  ::-webkit-scrollbar-track {
    background: var(--surface2);
  }

  ::-webkit-scrollbar-thumb {
    background: var(--surface3);
    border-radius: 3px;
  }

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

/* ═══════════════════════════════════════════════════════════════════
   Glitch MAC text — GLOBAL (must NOT be inside Svelte scoped <style>)
   1:1 port from vanilla JS: D:\MBMmac\MAC\frontend\style.css :189-194
   ═══════════════════════════════════════════════════════════════════ */
.glitch {
  position: relative;
  display: inline-block;
  font-family: 'Courier New', monospace;
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--text, var(--fg));
}
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.glitch::before {
  color: var(--text, var(--fg));
  animation: glitch-1 3s infinite linear alternate-reverse;
  clip-path: inset(0 0 65% 0);
  text-shadow: -2px 0 rgba(255, 0, 0, 0.35);
}
.glitch::after {
  color: var(--text, var(--fg));
  animation: glitch-2 2.5s infinite linear alternate-reverse;
  clip-path: inset(65% 0 0 0);
  text-shadow: 2px 0 rgba(0, 0, 255, 0.35);
}
@keyframes glitch-1 {
  0%, 100% { clip-path: inset(0 0 65% 0);  transform: translate(0); }
  20%      { clip-path: inset(10% 0 55% 0); transform: translate(-3px, 1px); }
  40%      { clip-path: inset(30% 0 40% 0); transform: translate(2px, -1px); }
  60%      { clip-path: inset(5% 0 70% 0);  transform: translate(-1px, 2px); }
  80%      { clip-path: inset(20% 0 50% 0); transform: translate(3px, 0); }
}
@keyframes glitch-2 {
  0%, 100% { clip-path: inset(65% 0 0 0);  transform: translate(0); }
  25%      { clip-path: inset(50% 0 10% 0); transform: translate(2px, -2px); }
  50%      { clip-path: inset(70% 0 5% 0);  transform: translate(-3px, 1px); }
  75%      { clip-path: inset(60% 0 15% 0); transform: translate(1px, 2px); }
}

@layer components {
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--accent);
    color: var(--accent-text);
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    text-decoration: none;
  }

  .btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  }

  .btn-primary:active:not(:disabled) {
    transform: scale(0.98);
  }

  .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--surface2);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    text-decoration: none;
  }

  .btn-secondary:hover:not(:disabled) {
    background: var(--surface3);
    border-color: var(--border-strong);
  }

  .btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  .btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--error-bg);
    color: var(--error);
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: 1px solid var(--error);
    cursor: pointer;
    transition: background 0.15s ease;
  }

  .btn-danger:hover:not(:disabled) {
    background: var(--error);
    color: #fff;
  }

  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow);
  }

  .card-glow {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow), 0 0 20px rgba(217,116,73,0.08);
  }

  .input-field {
    width: 100%;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
  }

  .input-field::placeholder {
    color: var(--text3);
  }

  .input-field:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(217,116,73,0.15);
  }

  .label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text2);
    margin-bottom: 4px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .badge-blue {
    background: rgba(217,116,73,0.12);
    color: var(--accent);
  }

  .badge-green {
    background: var(--success-bg);
    color: var(--success);
  }

  .badge-yellow {
    background: var(--warning-bg);
    color: var(--warning);
  }

  .badge-red {
    background: var(--error-bg);
    color: var(--error);
  }

  .badge-gray {
    background: var(--surface3);
    color: var(--text2);
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    border-radius: 8px;
    color: var(--text2);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    transition: background 0.12s ease, color 0.12s ease;
    white-space: nowrap;
  }

  .nav-link:hover {
    background: var(--surface2);
    color: var(--text);
  }

  .nav-link.active {
    background: rgba(217,116,73,0.12);
    color: var(--accent);
  }

  .stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: var(--shadow);
  }

  .typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: bounce 1s infinite;
  }

  .message-user {
    background: rgba(217,116,73,0.10);
    border: 1px solid rgba(217,116,73,0.20);
    border-radius: 16px;
    border-top-right-radius: 4px;
    padding: 12px 16px;
    max-width: 80%;
    margin-left: auto;
    color: var(--text);
  }

  .message-assistant {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 16px;
    border-top-left-radius: 4px;
    padding: 12px 16px;
    max-width: 90%;
    color: var(--text);
  }

  .code-block {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 13px;
    overflow-x: auto;
    color: var(--text);
  }

  pre code {
    display: block;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 13px;
    overflow-x: auto;
    color: var(--text);
  }
}

@layer utilities {
  .text-gradient {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .mac-glitch {
    position: relative;
    display: inline-block;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-weight: 900;
    letter-spacing: 0.12em;
    color: var(--text);
  }

  .mac-glitch::before,
  .mac-glitch::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.65;
  }

  .mac-glitch::before {
    color: var(--accent);
    clip-path: inset(0 0 62% 0);
    text-shadow: -2px 0 rgba(224, 85, 85, 0.42);
    animation: macGlitchA 3.2s infinite linear alternate-reverse;
  }

  .mac-glitch::after {
    color: var(--success);
    clip-path: inset(58% 0 0 0);
    text-shadow: 2px 0 rgba(58, 125, 68, 0.38);
    animation: macGlitchB 2.7s infinite linear alternate-reverse;
  }

  @keyframes macGlitchA {
    0%, 100% { transform: translate(0); clip-path: inset(0 0 62% 0); }
    25% { transform: translate(-2px, 1px); clip-path: inset(12% 0 50% 0); }
    50% { transform: translate(2px, -1px); clip-path: inset(32% 0 38% 0); }
    75% { transform: translate(-1px, 2px); clip-path: inset(5% 0 70% 0); }
  }

  @keyframes macGlitchB {
    0%, 100% { transform: translate(0); clip-path: inset(58% 0 0 0); }
    30% { transform: translate(2px, -2px); clip-path: inset(48% 0 16% 0); }
    60% { transform: translate(-2px, 1px); clip-path: inset(68% 0 6% 0); }
  }

  .scrollbar-thin {
    scrollbar-width: thin;
    scrollbar-color: var(--surface3) var(--surface2);
  }

  .no-scrollbar {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .no-scrollbar::-webkit-scrollbar {
    display: none;
  }

  .surface-raised {
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .accent-ring:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(217,116,73,0.25);
  }
}