/* =========================================================
   Farcaster-inspired Design System
   Shared across miniapp tools
   ========================================================= */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");

/* ─── SPACING SCALE (4px base) ─── */
:root {
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
}

/* ─── TYPOGRAPHY SCALE ─── */
:root {
  --text-xs: 11px;
  --text-sm: 13px;
  --text-base: 15px;
  --text-md: 17px;
  --text-lg: 20px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 40px;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
}

/* ─── STATUS COLORS ─── */
:root {
  --success: #22c55e;
  --success-soft: rgba(34, 197, 94, 0.12);
  --success-ring: rgba(34, 197, 94, 0.3);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.12);
  --warning-ring: rgba(245, 158, 11, 0.3);
  --error: #ef4444;
  --error-soft: rgba(239, 68, 68, 0.12);
  --error-ring: rgba(239, 68, 68, 0.3);
  --info: #3b82f6;
  --info-soft: rgba(59, 130, 246, 0.12);
  --info-ring: rgba(59, 130, 246, 0.3);
}

/* Light defaults */
:root {
  --bg:            #ffffff;
  --bg-elev-1:     #f5f5f5;
  --bg-elev-2:     #ebebeb;
  --text:          #111111;
  --text-muted:    rgba(17,17,17,0.65);
  --text-faint:    rgba(17,17,17,0.4);
  --border:        rgba(0,0,0,0.1);
  --border-strong: rgba(0,0,0,0.18);
  --accent:        #7c3aed;
  --accent-fg:     #ffffff;
  --accent-soft:   rgba(124,58,237,0.1);
  --accent-ring:   rgba(124,58,237,0.3);
  --shadow-1:  0 1px 4px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.05);
  --shadow-2:  0 8px 32px rgba(0,0,0,0.09);
  --shadow-glow: 0 4px 20px rgba(124,58,237,0.15);
}

/* Dark overrides */
html.dark {
  --bg:            #07070a;
  --bg-elev-1:     #0c0c12;
  --bg-elev-2:     #242424;
  --text:          #f2f3f7;
  --text-muted:    rgba(242,243,247,0.65);
  --text-faint:    rgba(242,243,247,0.38);
  --border:        rgba(242,243,247,0.1);
  --border-strong: rgba(242,243,247,0.15);
  --accent:        #855dcd;
  --accent-soft:   rgba(133,93,205,0.12);
  --accent-ring:   rgba(133,93,205,0.3);
  --shadow-1:  0 1px 4px rgba(0,0,0,0.5), 0 4px 20px rgba(0,0,0,0.4);
  --shadow-2:  0 8px 40px rgba(0,0,0,0.6);
  --shadow-glow: 0 4px 24px rgba(133,93,205,0.25);
}

html.light { color-scheme: light; }
html.dark  { color-scheme: dark; }

:root {
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial;
  --r-xs:   6px;
  --r-sm:   10px;
  --r-md:   14px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-full: 9999px;
  --ease:  cubic-bezier(0.2,0.8,0.2,1);
  --ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0.0, 1, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-1: 130ms;
  --dur-2: 200ms;
  --dur-3: 300ms;
  --focus-ring: 0 0 0 3px var(--accent-ring);
  --container: 1080px;
  --gutter:    20px;
  --nav-h:     56px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--r-sm); }
::selection { background: rgba(124,58,237,0.2); }

/* Layout */
.container { width: min(var(--container), calc(100% - var(--gutter)*2)); margin-inline: auto; }
.hero { width: min(var(--container), calc(100% - var(--gutter)*2)); margin-inline: auto; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row   { display: flex; align-items: center; gap: 12px; }
.section { padding: 64px 0; }

.feed-layout {
  display: flex;
  max-width: var(--container);
  margin-inline: auto;
  min-height: calc(100vh - var(--nav-h));
}
.feed-sidebar {
  width: 240px; flex-shrink: 0;
  position: sticky; top: var(--nav-h);
  height: calc(100vh - var(--nav-h)); overflow-y: auto;
  padding: 12px 8px; border-right: 1px solid var(--border);
}
.feed-main  { flex: 1; min-width: 0; border-inline: 1px solid var(--border); }
.feed-aside { width: 300px; flex-shrink: 0; padding: 20px 16px; }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h); display: flex; align-items: center;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
}
html.light .nav { background: rgba(255,255,255,0.85); }
html.dark  .nav { background: rgba(16,16,16,0.85); }

.nav__inner { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-inline: var(--gutter); }
.nav__brand { font-weight: 800; font-size: 17px; letter-spacing: -0.025em; display: flex; align-items: center; gap: 8px; }
.nav__links { display: flex; align-items: center; gap: 2px; }
.nav__links a {
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  padding: 6px 10px; border-radius: var(--r-sm);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.nav__links a:hover  { color: var(--text); background: var(--bg-elev-1); }
.nav__links a.active { color: var(--text); font-weight: 600; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--r-md);
  font-size: 15px; font-weight: 500; color: var(--text-muted);
  cursor: pointer; user-select: none;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.nav-item:hover  { background: var(--bg-elev-1); color: var(--text); }
.nav-item.active { background: var(--bg-elev-2); color: var(--text); font-weight: 600; }

/* Typography */
.h1 { font-size: clamp(44px,6vw,72px); font-weight: 800; letter-spacing: -0.035em; line-height: 1.05; }
.h2 { font-size: clamp(24px,3vw,36px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
.h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.015em; line-height: 1.2; }
.h4 { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
p  { font-size: 15px; color: var(--text-muted); line-height: 1.6; }
.muted  { color: var(--text-muted); }
.faint  { color: var(--text-faint); }
.accent { color: var(--accent); }
.kicker { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-faint); }

/* Surfaces */
.surface { background: var(--bg-elev-1); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-1); }
.surface--raised { background: var(--bg-elev-2); border: 1px solid var(--border-strong); border-radius: var(--r-lg); box-shadow: var(--shadow-2); }
.card { padding: 20px; }

.feed-item {
  padding: 16px var(--gutter);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--dur-1) var(--ease);
}
.feed-item:hover { background: var(--bg-elev-1); }

/* Avatar */
.avatar { border-radius: 50%; overflow: hidden; background: var(--bg-elev-2); flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; }
.avatar--sm { width: 32px; height: 32px; }
.avatar--md { width: 40px; height: 40px; }
.avatar--lg { width: 48px; height: 48px; }
.avatar--xl { width: 64px; height: 64px; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border); background: var(--bg-elev-1); color: var(--text);
  border-radius: var(--r-full); padding: 10px 18px;
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 600;
  cursor: pointer; white-space: nowrap; user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease),
    box-shadow var(--dur-2) var(--ease), transform var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--dur-2) var(--ease);
}
.btn:hover::before { opacity: 1; }
.btn:hover  { border-color: var(--border-strong); background: var(--bg-elev-2); transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.98); opacity: 0.9; }
.btn:focus-visible { box-shadow: var(--focus-ring); }
.btn:disabled { opacity: 0.45; pointer-events: none; cursor: not-allowed; }

.btn--primary { background: var(--accent); border-color: transparent; color: var(--accent-fg); box-shadow: 0 4px 16px rgba(124,58,237,0.22); }
.btn--primary:hover { background: #6d28d9; border-color: transparent; box-shadow: var(--shadow-glow), 0 6px 24px rgba(124,58,237,0.32); transform: translateY(-2px); }
.btn--primary:active { transform: translateY(0) scale(0.98); box-shadow: 0 2px 8px rgba(124,58,237,0.2); }
html.dark .btn--primary:hover { background: #7c3aed; }

.btn--ghost { background: transparent; border-color: transparent; }
.btn--ghost:hover { background: var(--bg-elev-1); border-color: transparent; }
.btn--outline { background: transparent; }
.btn--outline:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* Button with success state */
.btn--success { background: var(--success); border-color: transparent; color: white; }
.btn--success:hover { background: #16a34a; }

/* Button with danger state */
.btn--danger { background: var(--error); border-color: transparent; color: white; }
.btn--danger:hover { background: #dc2626; }

.btn--sm   { padding: 7px 14px; font-size: var(--text-xs); }
.btn--lg   { padding: 14px 24px; font-size: var(--text-base); }
.btn--icon { padding: 10px; border-radius: var(--r-md); }

/* Loading state for buttons */
.btn--loading { pointer-events: none; }
.btn--loading .btn__text { opacity: 0; }
.btn--loading .btn__spinner { display: flex; }
.btn__spinner {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
}
.btn__spinner::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Badge */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--r-full); font-size: 12px; font-weight: 600; border: 1px solid var(--border); background: var(--bg-elev-1); color: var(--text-muted); }
.badge--accent { background: var(--accent-soft); border-color: rgba(124,58,237,0.25); color: var(--accent); }
.badge--green  { background: rgba(34,197,94,0.1); border-color: rgba(34,197,94,0.22); color: #16a34a; }
html.dark .badge--green { color: #4ade80; }

.channel-tag {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  background: var(--accent-soft); border-radius: var(--r-full); padding: 2px 10px;
  transition: background var(--dur-1) var(--ease);
}
.channel-tag:hover { background: rgba(124,58,237,0.18); }

/* Inputs */
.input, .textarea, .select {
  width: 100%; font-family: var(--font-sans); font-size: var(--text-sm);
  color: var(--text); background: var(--bg-elev-1); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 12px 14px; outline: none;
  transition: border-color var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}
.input::placeholder, .textarea::placeholder { color: var(--text-faint); transition: opacity var(--dur-2) var(--ease); }
.input:focus::placeholder, .textarea:focus::placeholder { opacity: 0.5; }
.input:hover, .textarea:hover, .select:hover { border-color: var(--border-strong); }
.input:focus, .textarea:focus, .select:focus { border-color: var(--accent); box-shadow: var(--focus-ring); background: var(--bg); }
.textarea { resize: vertical; min-height: 96px; line-height: var(--leading-relaxed); }

/* Input validation states */
.input--error, .textarea--error { border-color: var(--error); }
.input--error:focus, .textarea--error:focus { box-shadow: 0 0 0 3px var(--error-ring); }
.input--success, .textarea--success { border-color: var(--success); }
.input--success:focus, .textarea--success:focus { box-shadow: 0 0 0 3px var(--success-ring); }

/* Form field wrapper */
.field { margin-bottom: var(--space-5); }
.field__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text);
  margin-bottom: var(--space-2);
}
.field__hint {
  font-size: var(--text-xs);
  color: var(--text-faint);
  margin-top: var(--space-1);
}
.field__error {
  font-size: var(--text-xs);
  color: var(--error);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.field__error::before {
  content: '!';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  background: var(--error-soft);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
}

/* Character count */
.field__count {
  font-size: var(--text-xs);
  color: var(--text-faint);
  text-align: right;
  margin-top: var(--space-1);
}
.field__count--warning { color: var(--warning); }
.field__count--error { color: var(--error); }

.compose {
  background: var(--bg-elev-1); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 14px 16px;
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}
.compose:focus-within { border-color: rgba(124,58,237,0.38); box-shadow: var(--focus-ring); }

/* Reactions */
.reactions { display: flex; align-items: center; gap: 20px; padding-top: 10px; }
.reaction-btn {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--text-faint); background: none; border: none; cursor: pointer;
  padding: 4px 6px; border-radius: var(--r-sm);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.reaction-btn:hover    { color: var(--text-muted); background: var(--bg-elev-2); }
.reaction-btn.liked    { color: #f43f5e; }
.reaction-btn.recasted { color: #22c55e; }

/* Divider */
hr, .divider { border: none; border-top: 1px solid var(--border); }

/* Code */
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Courier New", monospace;
  font-size: 13px; background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: var(--r-xs); padding: 2px 6px;
}
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Courier New", monospace;
  font-size: 13px; background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 16px; overflow-x: auto; line-height: 1.6;
}
pre code { background: none; border: none; padding: 0; }

/* Skeleton */
@keyframes shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position:  600px 0; }
}
.skeleton {
  border-radius: var(--r-sm);
  background: linear-gradient(90deg, var(--bg-elev-1) 25%, var(--bg-elev-2) 50%, var(--bg-elev-1) 75%);
  background-size: 1200px 100%;
  animation: shimmer 1.5s infinite linear;
}
.skeleton--text { height: 14px; margin-bottom: 8px; }
.skeleton--title { height: 24px; width: 60%; margin-bottom: 12px; }
.skeleton--button { height: 40px; width: 120px; border-radius: var(--r-full); }
.skeleton--card { height: 180px; border-radius: var(--r-lg); }

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-2);
  font-size: var(--text-sm);
  color: var(--text);
  pointer-events: auto;
  animation: toastIn var(--dur-3) var(--ease-bounce);
  max-width: 360px;
}
.toast--success { border-color: var(--success); background: var(--success-soft); }
.toast--success .toast__icon { color: var(--success); }
.toast--error { border-color: var(--error); background: var(--error-soft); }
.toast--error .toast__icon { color: var(--error); }
.toast--info { border-color: var(--info); background: var(--info-soft); }
.toast--info .toast__icon { color: var(--info); }
.toast__icon { flex-shrink: 0; width: 18px; height: 18px; }
.toast__content { flex: 1; }
.toast__dismiss {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--r-sm);
  transition: color var(--dur-1) var(--ease);
}
.toast__dismiss:hover { color: var(--text); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(-8px) scale(0.95); }
}

/* Empty state component */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-8);
  text-align: center;
  color: var(--text-muted);
}
.empty-state__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  opacity: 0.4;
  color: var(--text-faint);
}
.empty-state__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-2);
}
.empty-state__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 320px;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

/* Loading spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.spinner--lg { width: 32px; height: 32px; border-width: 3px; }

/* Utility */
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.clamp-2  { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sr-only  { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.hero { padding: 0 0 var(--space-3); margin-top: calc(var(--space-16) * -1); text-align: center; position: relative; overflow: hidden; }
.hero__glow {
  position: absolute;
  top: -32px;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  height: 180px;
  background: radial-gradient(circle at center, rgba(240,178,215,0.5) 0%, rgba(58,109,245,0.4) 40%, rgba(16,16,32,0.05) 100%);
  filter: blur(60px);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
  animation: glowPulse 8s ease-in-out infinite alternate;
}
@keyframes glowPulse {
  0% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  100% { opacity: 0.7; transform: translateX(-50%) scale(1.05); }
}
.hero > * { position: relative; z-index: 1; }
.hero__kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: var(--space-4);
  animation: fadeInUp var(--dur-3) var(--ease) backwards;
}
.hero__headline {
  background: linear-gradient(135deg, #f2f3f7 20%, rgba(240,178,215,0.95) 55%, rgba(58,109,245,0.9) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  margin: 0;
  animation: fadeInUp var(--dur-3) var(--ease) 0.1s backwards;
}
html.light .hero__headline {
  background: linear-gradient(135deg, #1a1a1a 30%, #6d28d9 70%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .eyebrow { font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); margin-bottom: var(--space-3); }
.hero .lede { 
  max-width: 680px; 
  margin: var(--space-4) auto 0; 
  color: var(--text-muted); 
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  animation: fadeInUp var(--dur-3) var(--ease) 0.2s backwards;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-grid {
  display: grid; gap: var(--space-5); padding: 0 0 var(--space-16);
  grid-template-columns: repeat(3, 1fr);
}

.tool-card {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 200px;
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
  box-shadow: var(--shadow-1);
  position: relative;
  overflow: hidden;
}
.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(124,58,237,0.3));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-3) var(--ease);
}
.tool-card:hover::before { transform: scaleX(1); }
.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-soft);
  box-shadow: var(--shadow-glow), 0 20px 50px rgba(0,0,0,0.15);
}
.tool-card:active { transform: translateY(-2px); }
.tool-card__top { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-3); }
.tool-card__title { font-size: var(--text-md); font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
.tool-card__desc { color: var(--text-muted); font-size: var(--text-sm); line-height: var(--leading-relaxed); flex: 1; }
.tool-card__footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; gap: var(--space-3); padding-top: var(--space-3); }
.tool-card__hover-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.tool-card:hover .tool-card__hover-link { opacity: 1; transform: translateX(0); }
.tool-card:hover .btn--primary { box-shadow: var(--shadow-glow); }

.pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: var(--r-full); background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text-muted); font-weight: 600; font-size: 12px; }
.pill--strategy { background: rgba(58,109,245,0.15); border-color: rgba(58,109,245,0.4); color: rgba(58,109,245,0.95); }
.pill--pressure { background: rgba(164,106,62,0.15); border-color: rgba(164,106,62,0.4); color: rgba(220,146,92,0.95); }
.pill--assets { background: rgba(240,178,215,0.15); border-color: rgba(240,178,215,0.35); color: rgba(240,178,215,0.95); }
.pill--gtm { background: rgba(80,200,120,0.12); border-color: rgba(80,200,120,0.35); color: rgba(100,220,140,0.95); }
.pill--meta { background: rgba(106,125,255,0.15); border-color: rgba(106,125,255,0.4); color: rgba(126,145,255,0.95); }
.pill--prompts { background: rgba(160,100,240,0.15); border-color: rgba(160,100,240,0.4); color: rgba(180,120,255,0.95); }

.footer { border-top: 1px solid var(--border); padding: 28px 0 36px; color: var(--text-faint); font-size: 13px; margin-top: 32px; }
.footer .row { justify-content: space-between; align-items: center; flex-wrap: wrap; }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; flex-wrap: wrap; }
.footer__left { display: flex; flex-direction: column; gap: 6px; }
.footer__tagline { color: var(--text-muted); font-size: 14px; }
.footer__copyright { color: var(--text-faint); font-size: 13px; }
.footer__right { display: flex; gap: 18px; align-items: center; }
.footer__right a { color: var(--text-faint); font-size: 13px; transition: color var(--dur-1) var(--ease); }
.footer__right a:hover { color: var(--text-muted); }

.theme-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease);
  padding: 0;
  border-radius: var(--r-sm);
}
.theme-toggle-icon:hover { color: var(--text); opacity: 0.8; }
.theme-icon { width: 16px; height: 16px; }
html.light .theme-icon--dark { display: none; }
html.dark .theme-icon--light { display: none; }

/* Responsive */
@media (max-width: 1024px) { .feed-aside { display: none; } }
@media (max-width: 768px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
  .hero { padding: 0 0 var(--space-2); margin-top: calc(var(--space-12) * -1); }
  .hero .h1 { font-size: clamp(32px, 8vw, 48px); }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .feed-sidebar { display: none; }
  .feed-main    { border-inline: none; }
  .nav__links   { display: none; }
  .section      { padding: var(--space-10) 0; }
  .card         { padding: var(--space-4); }
  .hero         { padding: 0 0 var(--space-1); margin-top: calc(var(--space-8) * -1); text-align: left; }
  .hero .lede   { margin-left: 0; margin-right: 0; }
  .card-grid    { grid-template-columns: 1fr; gap: var(--space-4); }
  .tool-card    { padding: var(--space-5); min-height: auto; }
  .tool-card__hover-link { display: none; }
  .btn          { padding: 12px 20px; width: 100%; justify-content: center; }
  .footer__inner { flex-direction: column; gap: var(--space-4); align-items: flex-start; }
  .footer__right { flex-wrap: wrap; }
  
  /* Mobile tap targets - ensure 44px minimum */
  .btn, .nav__links a, .theme-toggle-icon { min-height: 44px; }
  
  /* Toast at bottom center on mobile */
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
    bottom: var(--space-4);
  }
  .toast { max-width: 100%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero__glow { animation: none; }
}

/* Focus visible for accessibility */
:focus:not(:focus-visible) { box-shadow: none; }
:focus-visible { 
  outline: none; 
  box-shadow: var(--focus-ring); 
  border-radius: var(--r-sm); 
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: var(--accent-fg);
  padding: var(--space-2) var(--space-4);
  z-index: 1001;
  font-weight: 600;
  border-radius: 0 0 var(--r-sm) 0;
  transition: top var(--dur-2) var(--ease);
}
.skip-link:focus { top: 0; }