/* ─────────────────────────────────────────────────────────────────────────
   apple-redesign.css — devhandbook.io
   Shared design system for all tool pages.
   Applied on top of Tailwind CDN; overrides are intentional.
   ───────────────────────────────────────────────────────────────────────── */

/* ─── Design Tokens ────────────────────────────────────────────────────── */
:root {
  --bg:             #fbfbfd;
  --surface:        rgba(255, 255, 255, 0.82);
  --surface-mid:    rgba(255, 255, 255, 0.6);
  --surface-strong: rgba(255, 255, 255, 0.96);
  --text-primary:   #1d1d1f;
  --text-secondary: #6e6e73;
  --accent:         #0071e3;
  --accent-hover:   #0077ed;
  --accent-dim:     rgba(0, 113, 227, 0.1);
  --border:         rgba(0, 0, 0, 0.07);
  --glass-border:   rgba(255, 255, 255, 0.45);
  --shadow:         0 2px 16px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-hover:   0 12px 40px rgba(0, 0, 0, 0.11), 0 2px 8px rgba(0, 0, 0, 0.06);
  --radius-card:    20px;
  --radius-input:   12px;
  --radius-pill:    980px;
  --font-sans:      -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text',
                    'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:      'SF Mono', 'Fira Code', 'JetBrains Mono', monospace;
  --transition:     0.28s cubic-bezier(0.25, 0.1, 0.25, 1);
}

html.dark {
  --bg:             #000000;
  --surface:        rgba(28, 28, 30, 0.9);
  --surface-mid:    rgba(44, 44, 46, 0.7);
  --surface-strong: rgba(58, 58, 60, 0.95);
  --text-primary:   #f5f5f7;
  --text-secondary: #98989d;
  --accent:         #2997ff;
  --accent-hover:   #4da8ff;
  --accent-dim:     rgba(41, 151, 255, 0.12);
  --border:         rgba(255, 255, 255, 0.08);
  --glass-border:   rgba(255, 255, 255, 0.1);
  --shadow:         0 2px 16px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-hover:   0 12px 40px rgba(0, 0, 0, 0.7), 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* ─── Base Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html,
body {
  background: var(--bg) !important;
  color: var(--text-primary) !important;
}

body {
  font-family: var(--font-sans) !important;
  -webkit-font-smoothing: antialiased !important;
  text-rendering: optimizeLegibility !important;
}

/* ─── Typography ───────────────────────────────────────────────────────── */
code,
pre,
.mono,
.json-tree,
textarea.mono,
textarea[class*="mono"],
.token-input {
  font-family: var(--font-mono) !important;
}

h1, h2, h3, h4 {
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary) !important;
}

/* ─── Navigation / Header ──────────────────────────────────────────────── */
header {
  position: sticky !important;
  top: 0 !important;
  z-index: 50 !important;

  /* True Apple nav: translucent blur, no harsh shadow */
  background: rgba(251, 251, 253, 0.82) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  border-bottom: 1px solid var(--border) !important;
  box-shadow: none !important;

  /* Remove any Tailwind shadow utilities */
  --tw-shadow: none;
}

html.dark header {
  background: rgba(0, 0, 0, 0.82) !important;
}

/* Tool name in header */
header h1 {
  font-size: 17px !important;
  font-weight: 600 !important;
  letter-spacing: -0.02em !important;
  color: var(--text-primary) !important;
}
header p {
  font-size: 12px !important;
  color: var(--text-secondary) !important;
}

/* ─── Tool Icon in Header (replace gradient squares) ──────────────────── */
/* Override the gradient icon approach — use a flat accent square instead */
header [class*="bg-gradient"],
header [class*="from-primary"],
header .bg-gradient-to-br {
  background: var(--accent) !important;
  background-image: none !important;
  border-radius: 12px !important;
  box-shadow: none !important;
}

/* "Client-side only" badge — subtle, not chunky green */
header [class*="bg-green"],
header [class*="text-green"] {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border: none !important;
}

/* Back link */
header a[href="../"] {
  color: var(--text-secondary) !important;
  font-size: 13px !important;
}
header a[href="../"]:hover {
  color: var(--accent) !important;
}
header a[href="../"] svg {
  color: var(--text-secondary);
}

/* Divider in header nav */
header .border-r {
  border-color: var(--border) !important;
}

/* ─── Theme Toggle Button ──────────────────────────────────────────────── */
#themeToggle {
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  color: var(--text-secondary) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  transition: background var(--transition) !important;
  box-shadow: none !important;
}
#themeToggle:hover {
  background: var(--surface-mid) !important;
}

/* ─── Main Content Area ────────────────────────────────────────────────── */
main {
  max-width: 1080px !important;
  margin: 0 auto !important;
  padding: 56px 24px 96px !important;
  background: transparent !important;
}

/* ─── Cards (glass panels) ─────────────────────────────────────────────── */
/* 
  Target the main card containers that Tailwind generates:
  bg-white + rounded-xl, or bg-gray-800 + rounded-xl
  Must be specific enough to NOT apply to small internal elements.
*/

/* Main panel cards — bg-white or bg-gray-50 + rounded-xl */
main [class~="bg-white"][class*="rounded-xl"],
main [class~="bg-white"][class*="rounded-lg"],
main [class~="bg-gray-50"][class*="rounded-xl"],
main [class~="bg-gray-50"][class*="rounded-lg"],
main .tool-card {
  background: var(--surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--shadow) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
}

/* Dark mode card overrides (Tailwind generates dark:bg-gray-800 etc.) */
html.dark main [class~="bg-white"][class*="rounded-xl"],
html.dark main [class~="bg-white"][class*="rounded-lg"],
html.dark main [class~="bg-gray-50"][class*="rounded-xl"],
html.dark main [class~="bg-gray-50"][class*="rounded-lg"],
html.dark main .tool-card {
  background: var(--surface) !important;
  border-color: var(--glass-border) !important;
}

/* Panel sub-header toolbar bars inside cards */
main [class~="bg-white"][class*="rounded-xl"] [class*="bg-gray-1"],
main [class~="bg-white"][class*="rounded-xl"] [class*="bg-gray-7"],
main [class~="bg-white"][class*="rounded-lg"] [class*="bg-gray-1"],
main [class~="bg-white"][class*="rounded-lg"] [class*="bg-gray-7"] {
  background: rgba(0, 0, 0, 0.03) !important;
  border-color: var(--border) !important;
}
html.dark main [class~="bg-white"][class*="rounded-xl"] [class*="bg-gray"],
html.dark main [class~="bg-white"][class*="rounded-lg"] [class*="bg-gray"],
html.dark main [class*="rounded-xl"] [class*="bg-gray-7"],
html.dark main [class*="rounded-lg"] [class*="bg-gray-7"] {
  background: rgba(255, 255, 255, 0.04) !important;
  border-color: var(--border) !important;
}

/* Text colors inside cards */
main [class~="bg-white"][class*="rounded-xl"] h1,
main [class~="bg-white"][class*="rounded-xl"] h2,
main [class~="bg-white"][class*="rounded-xl"] h3,
main [class~="bg-white"][class*="rounded-lg"] h1,
main [class~="bg-white"][class*="rounded-lg"] h2,
main [class~="bg-white"][class*="rounded-lg"] h3 {
  color: var(--text-primary) !important;
}

/* ─── Privacy / Info Banner ────────────────────────────────────────────── */
/* Replace the generic blue/green alert boxes with a minimal inline notice */
main [class*="bg-blue-50"],
main [class*="bg-blue-900"],
main .bg-blue-50,
html.dark main .dark\:bg-blue-900 {
  background: var(--accent-dim) !important;
  border: 1px solid rgba(0, 113, 227, 0.12) !important;
  border-radius: 14px !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

main [class*="border-blue"],
main [class*="dark:border-blue"] {
  border-color: rgba(0, 113, 227, 0.12) !important;
}

main [class*="text-blue-900"],
main [class*="text-blue-300"] {
  color: var(--text-primary) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
}

main [class*="text-blue-700"],
main [class*="text-blue-400"] {
  color: var(--text-secondary) !important;
  font-size: 13px !important;
}

main [class*="text-blue-600"],
main [class*="dark:text-blue-400"] {
  color: var(--accent) !important;
}

/* ─── Inputs & Textareas ───────────────────────────────────────────────── */
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]),
textarea,
select {
  background: rgba(0, 0, 0, 0.04) !important;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  border-radius: var(--radius-input) !important;
  padding: 11px 14px !important;
  font-size: 15px !important;
  color: var(--text-primary) !important;
  transition: border-color var(--transition), box-shadow var(--transition) !important;
  outline: none !important;
  box-shadow: none !important;
}

html.dark input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]),
html.dark textarea,
html.dark select {
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  color: var(--text-primary) !important;
}

input:focus,
textarea:focus,
select:focus {
  outline: none !important;
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.14) !important;
}

html.dark input:focus,
html.dark textarea:focus,
html.dark select:focus {
  box-shadow: 0 0 0 3px rgba(41, 151, 255, 0.2) !important;
}

/* ─── Buttons ──────────────────────────────────────────────────────────── */
/* Primary action buttons */
button[class*="bg-primary"],
button[class*="bg-cyan"],
button[class*="bg-emerald"],
button[class*="bg-blue-6"],
button[class*="bg-blue-5"],
button[class*="bg-purple"],
button[class*="bg-teal"],
button[class*="bg-violet"],
button[class*="bg-indigo"],
button[class*="bg-amber"],
button[class*="bg-rose"] {
  background: var(--accent) !important;
  background-image: none !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-pill) !important;
  font-size: 15px !important;
  font-weight: 500 !important;
  letter-spacing: -0.01em !important;
  padding: 10px 22px !important;
  cursor: pointer !important;
  transition: background var(--transition), transform 0.12s !important;
  box-shadow: none !important;
}

button[class*="bg-primary"]:hover,
button[class*="bg-cyan"]:hover,
button[class*="bg-emerald"]:hover,
button[class*="bg-blue-6"]:hover,
button[class*="bg-blue-5"]:hover,
button[class*="bg-purple"]:hover,
button[class*="bg-teal"]:hover,
button[class*="bg-violet"]:hover,
button[class*="bg-indigo"]:hover,
button[class*="bg-amber"]:hover,
button[class*="bg-rose"]:hover {
  background: var(--accent-hover) !important;
}

button[class*="bg-primary"]:active,
button[class*="bg-cyan"]:active,
button[class*="bg-emerald"]:active {
  transform: scale(0.97) !important;
}

/* Kill all gradient backgrounds on buttons */
[class*="bg-gradient-to-"][class*="from-primary"] {
  background: var(--accent) !important;
  background-image: none !important;
}

/* ─── Tabs ─────────────────────────────────────────────────────────────── */
.tab-active {
  border-bottom: 2px solid var(--accent) !important;
  color: var(--accent) !important;
  font-weight: 500 !important;
}

.tab-inactive {
  border-bottom: 2px solid transparent !important;
  color: var(--text-secondary) !important;
  font-weight: 400 !important;
}

.tab-inactive:hover {
  color: var(--text-primary) !important;
}

/* ─── Text Colors ──────────────────────────────────────────────────────── */
.text-gray-900, .text-gray-800, .text-gray-700,
html.dark .dark\:text-white,
html.dark .dark\:text-gray-100,
html.dark .dark\:text-gray-200,
html.dark .dark\:text-gray-300 {
  color: var(--text-primary) !important;
}

.text-gray-600, .text-gray-500, .text-gray-400,
html.dark .dark\:text-gray-400,
html.dark .dark\:text-gray-500 {
  color: var(--text-secondary) !important;
}

/* Links */
a[class*="text-primary"],
a[class*="hover:text-primary"],
.text-primary {
  color: var(--accent) !important;
}

/* ─── Status / Badge Colors ────────────────────────────────────────────── */
/* Valid / success */
[class*="text-green-6"],
[class*="dark:text-green-4"] {
  color: #30d158 !important; /* Apple system green */
}

/* Invalid / error */
[class*="text-red-6"],
[class*="dark:text-red-4"] {
  color: #ff453a !important; /* Apple system red */
}

/* ─── Scrollbar (subtle, Apple-style) ─────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.25); }
html.dark ::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); }
html.dark ::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); }

/* ─── Related Tools Section ────────────────────────────────────────────── */
/* Section heading */
main section h2[class*="font-semibold"],
main section > h2 {
  font-size: 22px !important;
  font-weight: 600 !important;
  letter-spacing: -0.02em !important;
  color: var(--text-primary) !important;
  margin-bottom: 16px !important;
}

/* Related tool cards */
#relatedTools a,
[id="relatedTools"] a {
  display: flex !important;
  align-items: center !important;
  gap: 14px !important;
  padding: 16px 20px !important;
  background: var(--surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 16px !important;
  box-shadow: var(--shadow) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  text-decoration: none !important;
  transition: transform var(--transition), box-shadow var(--transition) !important;
}

#relatedTools a:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-hover) !important;
}

/* Related tool icon squares */
#relatedTools a [class*="w-12"],
#relatedTools a [class*="rounded-lg"] {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border-radius: 12px !important;
  font-size: 15px !important;
}

#relatedTools a h3 {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  letter-spacing: -0.01em !important;
}

#relatedTools a p {
  font-size: 13px !important;
  color: var(--text-secondary) !important;
}

/* ─── Status Bar ───────────────────────────────────────────────────────── */
#statusBar {
  background: var(--surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 14px !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  box-shadow: var(--shadow) !important;
}

/* ─── Footer ───────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
  background: transparent !important;
  box-shadow: none !important;
  padding: 24px 0 40px !important;
  text-align: center !important;
  font-size: 13px !important;
}

footer a {
  color: var(--accent) !important;
}

footer a:hover {
  text-decoration: underline;
}

/* ─── Fade-in Animation ────────────────────────────────────────────────── */
.fade-in {
  animation: appleFadeIn 0.5s cubic-bezier(0.25, 0.1, 0.25, 1) both;
}

@keyframes appleFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Utility Overrides ────────────────────────────────────────────────── */
/* border-radius normalization */
[class*="rounded-lg"] { border-radius: var(--radius-card) !important; }
[class*="rounded-xl"] { border-radius: var(--radius-card) !important; }
[class*="rounded-full"] { border-radius: var(--radius-pill) !important; }
[class*="rounded-md"] { border-radius: 10px !important; }

/* Remove harsh Tailwind shadows on cards — our CSS provides them */
main [class*="shadow-sm"],
main [class*="shadow-md"] {
  box-shadow: var(--shadow) !important;
}

/* ─── Mobile ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  main {
    padding: 40px 16px 72px !important;
  }

  header [class*="max-w"] {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 15px !important;
  }

  main [class*="rounded-xl"],
  main [class*="rounded-lg"] {
    border-radius: 16px !important;
  }
}