/* ================================
   ShelfyAI - Shared Styles
   ================================ */

/* ---------- CSS VARIABLES ---------- */
:root {
  /* Light mode (default) */
  --bg-main: #f8fafc;
  --bg-panel: #ffffff;
  --bg-inner: #f1f5f9;
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.15);
  --border: rgba(0,0,0,0.1);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --premium: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --icon-invert: 0;
}

[data-theme="dark"] {
  /* Dark mode */
  --bg-main: #05060a;
  --bg-panel: #0b1220;
  --bg-inner: #020617;
  --border: rgba(255,255,255,0.08);
  --text-main: #ffffff;
  --text-muted: #94a3b8;
  --icon-invert: 1;
}

/* ---------- BASE STYLES ---------- */
* {
  box-sizing: border-box;
}

html {
  overflow-y: auto;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

a {
  color: inherit;
  text-decoration: none;
  transition: 0.2s;
}

/* ---------- NAVIGATION ---------- */
.navbar {
  background: var(--bg-panel);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background 0.3s;
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  max-width: none;
  min-height: 80px;
}

.logo {
  font-weight: 800;
  font-size: 20px;
  background: linear-gradient(to right, var(--accent), var(--text-muted));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: pointer;
  flex-shrink: 0;
  min-width: 150px;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.theme-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle-label { 
  font-size: 18px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  user-select: none;
}

.theme-toggle-label svg {
  width: 20px;
  height: 20px;
  fill: var(--text-main);
}

.theme-toggle-label img {
  width: 20px;
  height: 20px;
}

[data-theme="dark"] .theme-toggle-label img {
  filter: brightness(0) invert(1);
}

.theme-toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 99px;
  cursor: pointer;
}

.theme-toggle-switch::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text-main);
  top: 2px;
  left: 2px;
  transition: 0.3s;
}

input#theme-checkbox:checked + .theme-toggle-switch::after { 
  transform: translateX(24px); 
  background: var(--accent); 
}

input#theme-checkbox { display: none; }

.nav-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-shrink: 0;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
  position: relative;
}

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

.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- USER MENU ---------- */
.user-menu {
  position: relative;
}

.user-menu-button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 13px;
  font-weight: 600;
}

.user-menu-button:hover {
  background: var(--bg-inner);
  border-color: var(--accent);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--premium));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.user-menu-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}

.user-menu-button.active .user-menu-arrow {
  transform: rotate(180deg);
}

.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-width: 220px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s;
  z-index: 10001;
  overflow: hidden;
}

.user-menu-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-menu-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.user-menu-email {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}

.user-menu-role {
  font-size: 11px;
  color: var(--text-muted);
}

.user-menu-list {
  padding: 8px;
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  color: var(--text-main);
  font-weight: 500;
}

.user-menu-item:hover {
  background: var(--bg-inner);
  color: var(--accent);
}

.user-menu-item svg,
.user-menu-item img {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.user-menu-item.logout {
  color: var(--danger);
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 12px;
}

.user-menu-item.logout:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

/* ---------- FEEDBACK WIDGET ---------- */
.feedback-button {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: #06b6d4;
  color: #fff;
  padding: 16px 12px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  z-index: 999;
  border-radius: 8px 0 0 8px;
  box-shadow: -2px 2px 8px rgba(0,0,0,0.2);
  transition: all 0.3s;
  display: none;
}

.feedback-button.show {
  display: block;
}

.feedback-button:hover {
  right: 0;
  background: #0891b2;
}

.feedback-modal {
  position: fixed;
  right: -450px;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  max-height: 500px;
  background: var(--bg-panel);
  border-radius: 16px 0 0 16px;
  box-shadow: -4px 0 20px rgba(0,0,0,0.3);
  z-index: 1001;
  transition: right 0.3s ease;
}

.feedback-modal.active {
  right: 0;
}

.feedback-content {
  padding: 30px 25px;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.feedback-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 32px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feedback-close:hover {
  color: var(--text-main);
}

.feedback-step h3 {
  font-size: 20px;
  margin: 0 0 24px 0;
  color: var(--text-main);
}

.feedback-step textarea {
  width: 100%;
  min-height: 150px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-inner);
  color: var(--text-main);
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  margin-bottom: 20px;
}

.feedback-step textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-feedback-next {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  margin-left: auto;
  display: block;
}

.btn-feedback-next:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.emoji-rating {
  display: flex;
  justify-content: space-between;
  margin: 30px 0 40px;
  gap: 8px;
}

.emoji {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.emoji:hover {
  transform: scale(1.1);
}

.emoji.selected .emoji-face {
  background: var(--accent);
  transform: scale(1.15);
}

.emoji-face {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-inner);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 8px;
  transition: all 0.2s;
}

.emoji-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.pro-badge {
  font-size: 9px;
  padding: 3px 7px;
  background: var(--premium);
  border-radius: 4px;
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ---------- BUTTONS ---------- */
.btn {
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: 0.2s;
  text-align: center;
  display: inline-block;
}

.btn-primary {
  background: #06b6d4;
  color: #fff;
}

.navbar .btn-primary {
  font-size: 13px;
  padding: 8px 14px;
  white-space: nowrap;
}

.btn-primary:hover {
  background: #0891b2;
}

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

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

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-success:hover {
  background: #059669;
  transform: translateY(-2px);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-2px);
}

/* ---------- CARDS ---------- */
.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* ---------- INPUTS ---------- */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 12px;
  background: var(--bg-inner);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
}

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

/* ---------- NUMBER INPUT SPINNERS ---------- */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* ---------- MODALS ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal h2 {
  margin: 0 0 20px 0;
  font-size: 24px;
}

/* ---------- TABLES ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead {
  border-bottom: 1px solid var(--border);
}

th {
  text-align: left;
  padding: 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

td {
  padding: 16px 12px;
  border-bottom: 1px solid var(--border);
}

tr:hover td {
  background: var(--bg-inner);
}

/* ---------- STATUS BADGES ---------- */
.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.status-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.status-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.status-premium {
  background: rgba(139, 92, 246, 0.15);
  color: var(--premium);
}

/* ---------- UTILITY CLASSES ---------- */
.text-muted {
  color: var(--text-muted);
}

.text-small {
  font-size: 12px;
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

/* ---------- HAMBURGER MENU ---------- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 968px) {
  .navbar {
    padding: 16px 24px;
    gap: 20px;
  }

  .nav-links {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 10px 12px;
    gap: 12px;
    min-height: 60px;
    justify-content: space-between;
  }

  .logo {
    font-size: 14px;
    min-width: 100px;
    position: static;
    flex-shrink: 0;
  }

  /* Show nav-actions on mobile - aligned to the right */
  .nav-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-left: auto;
  }
  
  /* Compact theme toggle on mobile */
  .theme-toggle-wrapper {
    gap: 4px;
  }
  
  .theme-toggle-label {
    font-size: 14px;
  }
  
  .theme-toggle-label svg,
  .theme-toggle-label img {
    width: 16px;
    height: 16px;
  }
  
  .theme-toggle-switch {
    width: 36px;
    height: 18px;
  }
  
  .theme-toggle-switch::after {
    width: 14px;
    height: 14px;
  }
  
  input#theme-checkbox:checked + .theme-toggle-switch::after {
    transform: translateX(18px);
  }
  
  /* Compact user menu button */
  .user-menu-button {
    padding: 6px 8px;
    font-size: 12px;
    gap: 6px;
  }

  /* Show hamburger menu */
  .hamburger {
    display: flex;
  }

  /* Hide nav links by default on mobile */
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: none;
  }

  .nav-links.active {
    max-height: 400px;
  }

  .nav-links a {
    font-size: 13px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    white-space: normal;
  }

  .nav-links a:hover {
    background: var(--bg-inner);
  }
  
  /* Hide chat and feedback widgets on mobile */
  .feedback-button {
    display: none !important;
  }
}