/* ===== SIGNAL THEME — Career Recommender ===== */

:root {
  /* Base */
  --bg: #0b0d12;
  --surface: #14161d;
  --surface-raised: #1c1f29;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Accent — one confident color */
  --accent: #00d4a0;
  --accent-dim: rgba(0, 212, 160, 0.13);
  --accent-text: #00f5ba;

  /* Text */
  --text-primary: #f4f5f7;
  --text-secondary: #9296a3;
  --text-muted: #5c6070;

  /* Status (for demand/trend tags) */
  --status-high: #00d4a0;
  --status-medium: #f5a623;
  --status-low: #ff5c5c;

  /* Feature accent colors */
  --card-discover: #00d4a0;
  --card-roadmap: #3b82f6;
  --card-skill: #f5a623;
  --card-resume: #8b5cf6;
  --card-interview: #ff5c5c;

  /* Layout */
  --sidebar-width: 260px;
}

/* ===== RESET & BASE ===== */

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  /* Dot-matrix background — reads as "engineered" */
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

h1, h2, h3, .card h3, .logo {
  font-family: 'Space Grotesk', sans-serif;
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

/* ===== APP SHELL — Sidebar + Main ===== */

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

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 0 1.5rem;
  margin-bottom: 2rem;
}

.sidebar-logo .logo {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sidebar-logo .logo .highlight {
  color: var(--accent);
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 0.75rem;
}

.sidebar-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: all 0.2s ease;
  position: relative;
  border-left: 3px solid transparent;
}

.sidebar-nav .nav-item i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.sidebar-nav .nav-item:hover {
  background: var(--surface-raised);
  color: var(--text-primary);
}

.sidebar-nav .nav-item.active {
  background: var(--accent-dim);
  color: var(--accent-text);
  font-weight: 600;
}

/* Distinct accent edge per feature */
.sidebar-nav .nav-item[data-view="interest-selector"] { border-left-color: var(--card-discover); }
.sidebar-nav .nav-item[data-view="roadmap-input"] { border-left-color: var(--card-roadmap); }
.sidebar-nav .nav-item[data-view="skill-check"] { border-left-color: var(--card-skill); }
.sidebar-nav .nav-item[data-view="resume-analyzer"] { border-left-color: var(--card-resume); }
.sidebar-nav .nav-item[data-view="mock-interview"] { border-left-color: var(--card-interview); }

.sidebar-nav .nav-item[data-view="interest-selector"].active { border-left-color: var(--card-discover); background: rgba(0,212,160,0.1); color: var(--card-discover); }
.sidebar-nav .nav-item[data-view="roadmap-input"].active { border-left-color: var(--card-roadmap); background: rgba(59,130,246,0.1); color: var(--card-roadmap); }
.sidebar-nav .nav-item[data-view="skill-check"].active { border-left-color: var(--card-skill); background: rgba(245,166,35,0.1); color: var(--card-skill); }
.sidebar-nav .nav-item[data-view="resume-analyzer"].active { border-left-color: var(--card-resume); background: rgba(139,92,246,0.1); color: var(--card-resume); }
.sidebar-nav .nav-item[data-view="mock-interview"].active { border-left-color: var(--card-interview); background: rgba(255,92,92,0.1); color: var(--card-interview); }

.sidebar-footer {
  padding: 0 0.75rem;
  margin-top: auto;
}

.sidebar-footer .logout-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: all 0.2s ease;
}

.sidebar-footer .logout-btn:hover {
  background: rgba(220, 38, 38, 0.1);
  color: var(--status-low);
}

/* --- Mobile Top Bar --- */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 101;
  align-items: center;
  padding: 0 1rem;
  justify-content: space-between;
}

.hamburger-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 8px;
  transition: background 0.2s;
}

.hamburger-btn:hover {
  background: var(--surface-raised);
}

.mobile-topbar .logo {
  font-size: 1.15rem;
  font-weight: 700;
}

.mobile-topbar .logo .highlight {
  color: var(--accent);
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 99;
}

.sidebar-overlay.active {
  display: block;
}

/* --- Main Content --- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  padding: 2.5rem 3rem;
  background: var(--bg);
  max-width: 900px;
}

/* ===== VIEW SYSTEM ===== */

.view {
  display: none;
  animation: viewFadeIn 0.35s ease-out;
}

.view.active {
  display: block;
}

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

.view-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.back-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  transition: color 0.2s;
}

.back-btn:hover {
  color: var(--accent-text);
}

/* ===== LANDING CARDS ===== */

.landing-header {
  margin-bottom: 2rem;
}

.landing-header h2 {
  font-size: 2rem;
}

.landing-header p {
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  border-top: 3px solid transparent;
}

/* Distinct top accent per card */
.card:nth-child(1) { border-top-color: var(--card-discover); }
.card:nth-child(2) { border-top-color: var(--card-roadmap); }
.card:nth-child(3) { border-top-color: var(--card-skill); }
.card:nth-child(4) { border-top-color: var(--card-resume); }
.card:nth-child(5) { border-top-color: var(--card-interview); }

.card:hover {
  transform: translateY(-4px);
  background: var(--surface-raised);
  border-color: var(--border-strong);
}

.card:nth-child(1):hover { box-shadow: 0 8px 24px rgba(0, 212, 160, 0.12); }
.card:nth-child(2):hover { box-shadow: 0 8px 24px rgba(59, 130, 246, 0.12); }
.card:nth-child(3):hover { box-shadow: 0 8px 24px rgba(245, 166, 35, 0.12); }
.card:nth-child(4):hover { box-shadow: 0 8px 24px rgba(139, 92, 246, 0.12); }
.card:nth-child(5):hover { box-shadow: 0 8px 24px rgba(255, 92, 92, 0.12); }

.card i {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  display: block;
}

.card:nth-child(1) i { color: var(--card-discover); }
.card:nth-child(2) i { color: var(--card-roadmap); }
.card:nth-child(3) i { color: var(--card-skill); }
.card:nth-child(4) i { color: var(--card-resume); }
.card:nth-child(5) i { color: var(--card-interview); }

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* ===== FORMS & INPUTS ===== */

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

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

select option {
  background: var(--surface);
  color: var(--text-primary);
}

.action-btn {
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #0b0d12;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.01em;
}

.action-btn:hover {
  background: var(--accent-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 212, 160, 0.25);
}

.action-btn:active {
  transform: translateY(0);
}

/* ===== INTEREST GRID ===== */

.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.interest-btn {
  padding: 0.85rem 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
}

.interest-btn i {
  font-size: 1.25rem;
}

.interest-btn:hover {
  background: var(--surface-raised);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.interest-btn.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-text);
}

/* ===== UPLOAD AREA ===== */

.upload-area {
  border: 2px dashed var(--border-strong);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 1rem;
  background: var(--surface);
}

.upload-area:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.upload-area i {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: block;
}

.upload-area p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

#file-name-display {
  color: var(--accent-text);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* ===== RESULT DISPLAY (Markdown Output) ===== */

.result-display,
.result-box {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 10px;
  border-left: 3px solid var(--accent);
  line-height: 1.7;
  font-size: 0.92rem;
  color: var(--text-primary);
  animation: viewFadeIn 0.35s ease-out;
}

/* Styled markdown inside result areas */
.result-display h1,
.result-display h2,
.result-display h3,
.result-display h4,
.result-box h1,
.result-box h2,
.result-box h3,
.result-box h4 {
  font-family: 'Space Grotesk', sans-serif;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.result-display h1, .result-box h1 { font-size: 1.4rem; }
.result-display h2, .result-box h2 { font-size: 1.2rem; }
.result-display h3, .result-box h3 { font-size: 1.05rem; }

.result-display ul,
.result-display ol,
.result-box ul,
.result-box ol {
  padding-left: 1.5rem;
  margin: 0.5rem 0;
}

.result-display li,
.result-box li {
  margin-bottom: 0.35rem;
}

.result-display code,
.result-box code {
  background: rgba(0, 212, 160, 0.1);
  color: var(--accent-text);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

.result-display pre,
.result-box pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  margin: 0.75rem 0;
}

.result-display pre code,
.result-box pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

.result-display strong,
.result-box strong {
  color: var(--text-primary);
  font-weight: 600;
}

.result-display p,
.result-box p {
  margin-bottom: 0.5rem;
}

.result-display a,
.result-box a {
  color: var(--accent-text);
  text-decoration: underline;
  text-decoration-color: rgba(0, 212, 160, 0.3);
}

/* Loading spinner in results */
.result-display .fa-spinner,
.result-box .fa-spinner {
  color: var(--accent);
  margin-right: 0.5rem;
}

/* ===== CHAT INTERFACE ===== */

.setup-interview {
  max-width: 500px;
}

.chat-interface {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  height: 500px;
}

.chat-history {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.message {
  display: flex;
  gap: 0.75rem;
  max-width: 80%;
  animation: messageFadeIn 0.3s ease-out;
}

@keyframes messageFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message.ai {
  align-self: flex-start;
}

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

.avatar {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 8px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent);
}

.message.user .avatar {
  color: var(--card-roadmap);
}

.bubble {
  padding: 0.85rem 1rem;
  background: var(--surface-raised);
  border-radius: 10px;
  border: 1px solid var(--border);
  line-height: 1.5;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.message.user .bubble {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0d12;
}

/* Typing indicator — 3 animated dots */
.typing-indicator {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 0.85rem 1rem;
}

.typing-indicator .dot {
  width: 7px;
  height: 7px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-indicator .dot:nth-child(2) {
  animation-delay: 0.15s;
}

.typing-indicator .dot:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

.chat-input-area {
  padding: 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.5rem;
}

#user-response {
  flex: 1;
  border-radius: 8px;
}

#sendResponseBtn {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  width: 44px;
  min-width: 44px;
  color: #0b0d12;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

#sendResponseBtn:hover {
  background: var(--accent-text);
  box-shadow: 0 2px 12px rgba(0, 212, 160, 0.3);
}

/* ===== SCROLLBAR ===== */

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

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

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

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

/* ===== HIDDEN UTILITY ===== */

.hidden {
  display: none !important;
}

/* ===== RESPONSIVE ===== */

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

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

  .mobile-topbar {
    display: flex;
  }

  .main-content {
    margin-left: 0;
    padding: 4.5rem 1.25rem 1.5rem;
    max-width: 100%;
  }

  .cards-container {
    grid-template-columns: 1fr;
  }

  .interests-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chat-interface {
    height: 65vh;
  }

  .message {
    max-width: 90%;
  }

  h2 {
    font-size: 1.5rem;
  }

  .back-btn {
    display: none; /* Navigation handled by sidebar/topbar on mobile */
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: 4rem 1rem 1rem;
  }

  .interests-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .interest-btn {
    padding: 0.65rem 0.25rem;
    font-size: 0.8rem;
  }

  .upload-area {
    padding: 1.5rem;
  }

  .chat-interface {
    height: 60vh;
  }

  .chat-input-area {
    padding: 0.5rem;
  }

  .result-display,
  .result-box {
    padding: 1rem;
    font-size: 0.88rem;
  }
}