/* core.css */

/* ==========================================================================
   Core Reset & Variables
   ========================================================================== */
   *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  /* Root Theme Variables (Light by default) */
  :root {
    --clr-primary: #2563eb;
    --clr-primary-dark: #1e40af;
    --clr-secondary: #10b981;
    --clr-secondary-dark: #047857;
  
    --clr-bg: #ffffff;
    --clr-bg-dark: #0f172a;
    --clr-text: #1f2937;
    --clr-text-dark: #e2e8f0;
    --clr-border: #e5e7eb;
  
    --body-bg-color: var(--clr-bg);
    --scrollbar-color: #888;
    --scrollbar-bg-color: #ffffff;
  
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
  
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 15px 25px rgba(0, 0, 0, 0.06);
  }
  
  /* Light Theme Overrides (Optional, explicit) */
  :root[data-theme="light"] {
    --clr-bg: #ffffff;
    --clr-text: #1f2937;
    --clr-border: #e5e7eb;
    --body-bg-color: #ffffff;
    --scrollbar-color: #888;
    --scrollbar-bg-color: #ffffff;
  }
  
  /* Dark Theme Overrides */
  :root[data-theme="dark"] {
    --clr-bg: #0f172a;
    --clr-text: #e2e8f0;
    --clr-border: #374151;
    --body-bg-color: #0f172a;
    --scrollbar-color: #cbd5e1;
    --scrollbar-bg-color: #0f172a;
  }
  
  /* ==========================================================================
     Base Styles
     ========================================================================== */
  html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    font-size: 100%;
  }
  
  body {
    line-height: 1.6;
    margin: 0;
    background-color: var(--body-bg-color);
    color: var(--clr-text);
    transition: background 0.3s ease, color 0.3s ease;
    scrollbar-color: var(--scrollbar-color) var(--scrollbar-bg-color);
    scrollbar-width: thin;
  }
  
  /* WebKit Scrollbar Styling (Optional for Chrome/Safari) */
  body::-webkit-scrollbar {
    width: 8px;
  }
  body::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-color);
    border-radius: 10px;
  }
  body::-webkit-scrollbar-track {
    background-color: var(--scrollbar-bg-color);
  }
  
  /* ==========================================================================
     Accessibility Utilities
     ========================================================================== */
  
  /* Skip-link */
  .skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--clr-primary);
    color: var(--clr-bg);
    padding: 0.75rem 1rem;
    z-index: 1000;
    transition: top 0.3s ease;
  }
  .skip-link:focus {
    top: 0;
    outline: 2px solid var(--clr-secondary);
    outline-offset: 2px;
  }
  
  /* Focus Outline */
  :focus {
    outline: 2px dashed var(--clr-secondary);
    outline-offset: 2px;
  }
  
  /* ==========================================================================
     Typography & Links
     ========================================================================== */
  a {
    color: var(--clr-primary);
    text-decoration: none;
  }
  a:hover,
  a:focus {
    text-decoration: underline;
  }
  
  /* ==========================================================================
     Animations
     ========================================================================== */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  

  
  /* ─────────────────────────────────────────────────────────────────────────
   Manuals Section Dark-Mode Overrides
   ───────────────────────────────────────────────────────────────────────── */

:root[data-theme="dark"] {
  /* Container & background */
  #manualHub {
    background-color: var(--clr-surface);
    border-color: var(--clr-border-muted);
  }

  /* Toolbar */
  .manuals-toolbar {
    background-color: var(--clr-surface);
    border-color: var(--clr-border-muted);
  }
  .manuals-toolbar label {
    background-color: var(--clr-surface);
    border-color: var(--clr-border-muted);
    color: var(--clr-text-primary);
  }
  .manuals-toolbar input::placeholder,
  .manuals-toolbar select {
    color: var(--clr-text-disabled);
  }

  /* Manual cards */
  .manuals-grid li {
    background-color: var(--clr-bg);
    border-color: var(--clr-border);
    box-shadow: var(--clr-shadow-md);
  }
  .manual-card__title {
    color: var(--clr-text-primary);
  }
  .manual-card__title:hover {
    color: var(--clr-primary-hover);
  }
  .manual-card__meta {
    color: var(--clr-text-secondary);
  }
  .manual-card__icon {
    color: var(--clr-primary);
  }

  /* Tags */
  .manual-tag {
    background-color: var(--clr-primary-hover);
    color: var(--clr-bg);
  }

  /* Buttons */
  .manual-card__btn {
    background-color: var(--clr-surface);
    border-color: var(--clr-border);
    color: var(--clr-primary);
  }
  .manual-card__btn:hover {
    background-color: var(--clr-primary);
    color: var(--clr-bg);
  }
  .manual-card__btn:focus {
    outline-color: var(--clr-primary);
  }

  /* Scrollbar thumb */
  .manuals-grid::-webkit-scrollbar-thumb {
    background: var(--clr-border-muted);
  }

  /* “Can’t find one?” request card */
  .manuals-request {
    border-top-color: var(--clr-border-muted);
  }
  .manuals-request h3 {
    color: var(--clr-primary-hover);
  }
  .manuals-request p {
    color: var(--clr-text-secondary);
  }
  .manuals-request input {
    background-color: var(--clr-surface);
    border-color: var(--clr-border-muted);
    color: var(--clr-text-primary);
  }
  .manuals-request input::placeholder {
    color: var(--clr-text-disabled);
  }
  .manuals-request button {
    background-color: var(--clr-primary);
    color: var(--clr-bg);
  }
  .manuals-request button:hover {
    background-color: var(--clr-primary-active);
  }
}


.nav__brand .brand-primary {
  color: var(--clr-primary);
}

.nav__brand .brand-secondary {
  color: var(--clr-secondary);
}

.knowledge-banner__title .brand-primary {
  color: var(--clr-primary);
}

.knowledge-banner__title .brand-secondary {
  color: var(--clr-secondary);
}


/* AUTH MODAL (reuses your existing .modal-* classes) */
.modal-content1 {
  max-width: 400px;
  width: 90%;
  padding: 2rem;
}
.modal-content1 input {
  width: 100%;
  margin-top: 0.75rem;
}
.btn--link {
  background: none;
  border: none;
  color: var(--clr-primary);
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  font-size: 0.9rem;
}


.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: #28a745;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.2);
  z-index: 10000;
  opacity: 0;
  animation: fadeInOut 4s ease forwards;
}
@keyframes fadeInOut {
  0%   { opacity: 0; transform: translateX(-50%) translateY(10px); }
  10%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  90%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}