/* Tools — glass design system (light / dark) */

:root {
  color-scheme: light;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 260ms;
  --dur-fast: 200ms;

  --container-max: 1024px;
  --space-section-y: clamp(3.5rem, 7vw, 5.5rem);
  --space-block: clamp(1.25rem, 3vw, 1.75rem);

  --bg0: #f5f5f7;
  --bg1: #eaeaec;
  --text: #1d1d1f;
  --text-muted: #515154;
  --accent: #0071e3;
  --accent-soft: rgba(0, 113, 227, 0.14);
  --accent2: #5ac8fa;
  --success: #34c759;
  --border-glass: rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.06);
  --glass-bg: rgba(255, 255, 255, 0.92);
  --glass-bg-strong: #ffffff;
  --glass-highlight: #f5f5f7;
  --surface-solid: #ffffff;
  --input-bg: #ffffff;
  --blob-a: rgba(0, 113, 227, 0.1);
  --blob-b: rgba(90, 200, 250, 0.1);
  --blob-c: rgba(175, 82, 222, 0.07);
  --cursor-glow: rgba(0, 113, 227, 0.03);
  --nav-bg: rgba(255, 255, 255, 0.82);
  --nav-border: rgba(0, 0, 0, 0.06);
  --blur-glass: 10px;
  --mx: 50%;
  --my: 40%;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg0: #1c1c1e;
  --bg1: #121214;
  --text: #f5f5f7;
  --text-muted: #aeaeb2;
  --accent: #0a84ff;
  --accent-soft: rgba(10, 132, 255, 0.22);
  --accent2: #64d2ff;
  --success: #30d158;
  --border-glass: rgba(255, 255, 255, 0.12);
  --shadow-soft: 0 12px 48px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.06), 0 4px 24px rgba(0, 0, 0, 0.35);
  --glass-bg: rgba(44, 44, 46, 0.94);
  --glass-bg-strong: #2c2c2e;
  --glass-highlight: #3a3a3c;
  --surface-solid: #2c2c2e;
  --input-bg: #3a3a3c;
  --blob-a: rgba(10, 132, 255, 0.12);
  --blob-b: rgba(100, 210, 255, 0.08);
  --blob-c: rgba(191, 90, 242, 0.08);
  --cursor-glow: rgba(10, 132, 255, 0.04);
  --nav-bg: rgba(28, 28, 30, 0.92);
  --nav-border: rgba(255, 255, 255, 0.1);
  --blur-glass: 12px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg0);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

[data-theme="dark"] body {
  background: var(--bg1);
}

body.modal-open {
  overflow: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Ambient blobs */
.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.28;
  animation: blob-float 22s var(--ease-soft) infinite;
}

.blob-a {
  width: min(52vw, 520px);
  height: min(52vw, 520px);
  background: var(--blob-a);
  top: -12%;
  left: -8%;
}

.blob-b {
  width: min(42vw, 440px);
  height: min(42vw, 440px);
  background: var(--blob-b);
  top: 18%;
  right: -10%;
  animation-delay: -7s;
}

.blob-c {
  width: min(48vw, 480px);
  height: min(48vw, 480px);
  background: var(--blob-c);
  bottom: -15%;
  left: 25%;
  animation-delay: -12s;
}

@keyframes blob-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(3%, 4%) scale(1.05);
  }
  66% {
    transform: translate(-4%, 2%) scale(0.96);
  }
}

.cursor-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
    420px circle at var(--mx) var(--my),
    var(--cursor-glow),
    transparent 50%
  );
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .blob {
    animation: none;
  }
  .cursor-glow {
    display: none;
  }
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 5vw, 2rem);
  padding-right: clamp(1.25rem, 5vw, 2rem);
  position: relative;
  z-index: 2;
}

main {
  position: relative;
  z-index: 2;
}

/* Glass panel base — light blur, mostly solid for readability */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Nav */
.nav-glass {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 12px 0;
  background: var(--nav-bg);
  backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  border-bottom: 1px solid var(--nav-border);
  transition: background var(--dur) var(--ease-soft), box-shadow var(--dur) var(--ease-soft);
}

.nav-glass.is-scrolled {
  background: var(--glass-bg-strong);
  box-shadow: 0 1px 0 var(--nav-border), 0 8px 24px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .nav-glass.is-scrolled {
  box-shadow: 0 1px 0 var(--nav-border), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  transition: color var(--dur-fast) var(--ease-soft);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--glass-bg);
  cursor: pointer;
  position: relative;
}

.nav-mobile-toggle::before,
.nav-mobile-toggle::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-soft);
}

.nav-mobile-toggle::before {
  top: 16px;
}

.nav-mobile-toggle::after {
  bottom: 16px;
}

.nav-mobile-toggle[aria-expanded="true"]::before {
  transform: translateY(5px) rotate(45deg);
}

.nav-mobile-toggle[aria-expanded="true"]::after {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 12px clamp(1.25rem, 5vw, 2rem) 20px;
  border-top: 1px solid var(--nav-border);
}

.nav-mobile a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.nav-mobile a:hover {
  background: var(--accent-soft);
}

.nav-mobile .btn-block {
  text-align: center;
  margin-top: 8px;
}

@media (max-width: 820px) {
  .nav-links,
  .nav-actions .btn-nav {
    display: none;
  }
  .nav-mobile-toggle {
    display: grid;
    place-items: center;
  }
  .nav-mobile:not([hidden]) {
    display: flex;
  }
}

/* Theme toggle */
.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--glass-bg);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform var(--dur-fast) var(--ease-soft), box-shadow var(--dur-fast) var(--ease-soft);
}

.theme-toggle:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.theme-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  position: absolute;
  transition: opacity var(--dur-fast) var(--ease-soft), transform var(--dur-fast) var(--ease-soft);
}

.theme-icon-sun {
  background: radial-gradient(circle at 30% 30%, #ffe066, #f5a623);
  opacity: 1;
  transform: scale(1);
}

.theme-icon-moon {
  background: linear-gradient(145deg, #c7d2fe, #6366f1);
  opacity: 0;
  transform: scale(0.5);
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 0;
  transform: scale(0.5);
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 1;
  transform: scale(1);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-soft),
    filter var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 113, 227, 0.35);
  font-weight: 600;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 113, 227, 0.4);
}

.btn-glass {
  color: var(--text);
  background: var(--surface-solid);
  border: 1px solid var(--border-glass);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  font-weight: 600;
}

.btn-glass:hover:not(:disabled) {
  transform: translateY(-1px);
  background: var(--glass-highlight);
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .btn-glass:hover:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1.0625rem;
  min-height: 3rem;
}

.btn-nav {
  padding-inline: 20px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--input-bg);
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-soft), transform var(--dur-fast) var(--ease-soft);
}

.icon-btn:hover {
  background: var(--accent-soft);
  transform: scale(1.02);
}

/* Hero */
.hero {
  padding-top: clamp(3.25rem, 9vw, 5rem);
  padding-bottom: var(--space-section-y);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
  width: 100%;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-copy {
  max-width: 34rem;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-copy {
    max-width: none;
    margin-inline: auto;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-ctas {
    justify-content: center;
  }
  .hero-visual {
    order: -1;
    max-width: 320px;
    margin-inline: auto;
  }
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(0, 113, 227, 0.12);
}

.hero-title {
  margin: 0;
  font-size: clamp(2.125rem, 4vw + 1rem, 3.125rem);
  font-weight: 700;
  letter-spacing: -0.038em;
  line-height: 1.06;
  color: var(--text);
}

.hero-subtitle {
  margin: 1.25rem 0 2rem;
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 30rem;
  line-height: 1.55;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
}

.hero-visual {
  perspective: 800px;
}

.hero-glass-card {
  padding: 1.5rem 1.35rem;
  transform: rotateY(-3deg) rotateX(2deg);
  transition: transform 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.hero-visual:hover .hero-glass-card {
  transform: rotateY(0deg) rotateX(0deg);
}

.hero-mini-row {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.35;
}

.hero-mini-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--text);
  opacity: 0.12;
  margin-bottom: 10px;
}

.hero-mini-bar.short {
  width: 55%;
}

.hero-mini-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 20px;
}

.hero-mini-grid span {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  opacity: 0.85;
}

[data-theme="dark"] .hero-eyebrow {
  border-color: rgba(10, 132, 255, 0.28);
}

/* Section reveal */
.section-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.section-reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Tools section */
.tools-section {
  padding-top: var(--space-section-y);
  padding-bottom: var(--space-section-y);
}

.section-head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2rem;
  padding: 0 0.25rem;
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.625rem, 2vw + 0.85rem, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.0625rem;
  line-height: 1.55;
}

.controls-panel {
  padding: 1.25rem 1.35rem;
  margin-bottom: 2rem;
  max-width: 100%;
  background: var(--glass-bg-strong);
}

.search-field {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.2rem 1rem;
  border-radius: var(--radius-md);
  background: var(--input-bg);
  border: 1px solid var(--border-glass);
  margin-bottom: 1.125rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: border-color var(--dur-fast) var(--ease-soft), box-shadow var(--dur-fast) var(--ease-soft);
}

.search-field:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft), 0 1px 2px rgba(0, 0, 0, 0.06);
}

.search-icon {
  display: block;
  width: 18px;
  height: 18px;
  min-width: 18px;
  min-height: 18px;
  max-width: 18px;
  max-height: 18px;
  flex: 0 0 18px;
  color: var(--text-muted);
  overflow: visible;
}

.search-field input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--text);
  padding: 0.65rem 0;
  outline: none;
}

.search-field input::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

.filters-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0;
  padding-bottom: 2px;
}

.filters-scroll::-webkit-scrollbar {
  display: none;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  width: 100%;
}

@media (max-width: 640px) {
  .filters {
    flex-wrap: nowrap;
    width: max-content;
    min-width: min(100%, max-content);
    padding-bottom: 4px;
  }
}

.filter-pill {
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-glass);
  background: var(--input-bg);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft),
    border-color var(--dur-fast) var(--ease-soft), box-shadow var(--dur-fast) var(--ease-soft);
}

.filter-pill:hover {
  color: var(--text);
  border-color: rgba(0, 0, 0, 0.12);
  background: var(--glass-highlight);
}

.filter-pill.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 1px 3px rgba(0, 113, 227, 0.35);
}

.filter-pill:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

[data-theme="dark"] .filter-pill:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: var(--glass-highlight);
}

[data-theme="dark"] .filter-pill.active {
  color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* Skeleton */
.tools-skeleton {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.125rem;
  margin-bottom: 1.125rem;
}

.tools-skeleton.is-hidden {
  display: none;
}

.skeleton-card {
  height: 132px;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    90deg,
    var(--input-bg) 0%,
    var(--glass-highlight) 45%,
    var(--input-bg) 90%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.2s ease-in-out infinite;
  border: 1px solid var(--border-glass);
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Tool grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.125rem;
  align-content: start;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 1.25rem 1.25rem 1.2rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-align: left;
  border: 1px solid var(--border-glass);
  background: var(--surface-solid);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-soft);
  opacity: 0;
  transform: translateY(10px);
  --stagger: 0ms;
  transition-delay: var(--stagger), var(--stagger), var(--stagger), var(--stagger);
}

.tool-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(0, 113, 227, 0.22);
}

.tool-card:active {
  transform: translateY(0);
}

.tool-card:focus {
  outline: none;
}

.tool-card:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-card);
  border-color: var(--accent);
}

.tool-card.premium-card {
  border-color: rgba(142, 68, 173, 0.25);
}

.tool-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--glass-highlight);
  border: 1px solid var(--border-glass);
  margin-bottom: 0.875rem;
  flex-shrink: 0;
  transition: border-color var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
}

.tool-card:hover .tool-icon-wrap {
  border-color: rgba(0, 113, 227, 0.2);
  background: var(--accent-soft);
}

.tool-icon-wrap svg {
  width: 20px;
  height: 20px;
  stroke: var(--text);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.tool-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
}

.tool-card .tool-desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Lock overlay (session unlock) */
.tool-card .lock-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 1;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
}

[data-theme="dark"] .tool-card .lock-overlay {
  background: rgba(44, 44, 46, 0.75);
}

.tool-card.unlocked .lock-overlay {
  opacity: 0;
  pointer-events: none;
}

.lock-overlay svg {
  width: 26px;
  height: 26px;
  stroke: var(--text);
  stroke-width: 2;
  fill: none;
  opacity: 0.65;
}

.tool-card.unlocked {
  cursor: pointer;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  margin-top: 12px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-glass);
  background: var(--input-bg);
}

.empty-state.hidden {
  display: none !important;
}

.empty-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 14px;
  color: var(--text-muted);
}

.empty-icon svg {
  display: block;
  width: 40px;
  height: 40px;
  max-width: 40px;
  max-height: 40px;
}

.empty-title {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 650;
}

.empty-text {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* About */
.about-section {
  padding-bottom: var(--space-section-y);
}

.about-inner {
  padding: clamp(1.75rem, 4vw, 2.25rem) clamp(1.25rem, 4vw, 2rem);
  max-width: 36rem;
  margin: 0 auto;
  text-align: center;
}

.about-inner h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 2vw + 0.5rem, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
}

.about-inner p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
  font-size: 1rem;
}

/* Footer */
.site-footer {
  padding: var(--space-section-y) 0 2rem;
  border-top: 1px solid var(--border-glass);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
}

[data-theme="dark"] .site-footer {
  background: var(--surface-solid);
  border-top-color: var(--border-glass);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.footer-tag {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 22px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: color var(--dur-fast) var(--ease-soft);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-copy {
  width: 100%;
  margin: 16px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--nav-border);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  pointer-events: none;
}

.modal:not(.hidden) {
  pointer-events: auto;
}

.modal.hidden {
  display: none !important;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 13, 16, 0.45);
  backdrop-filter: blur(6px) saturate(120%);
  -webkit-backdrop-filter: blur(6px) saturate(120%);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

.modal:not(.hidden) .modal-backdrop {
  opacity: 1;
}

.modal-shell {
  position: relative;
  width: min(720px, 100%);
  max-height: min(88vh, 900px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.94) translateY(12px);
  opacity: 0;
  transition: transform 0.35s var(--ease-out), opacity 0.35s var(--ease-out);
}

.modal:not(.hidden) .modal-shell {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-glass {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-glass)) saturate(140%);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-soft);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-glass);
  flex-shrink: 0;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.modal-body {
  padding: 22px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Tool UI inside modal */
.tool-shell {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-soft), box-shadow var(--dur-fast) var(--ease-soft);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(0, 113, 227, 0.45);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

@media (max-width: 540px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.result-panel {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.result-panel.is-error {
  border-color: rgba(255, 59, 48, 0.35);
  color: #ff3b30;
}

[data-theme="dark"] .result-panel.is-error {
  color: #ff6961;
}

.tool-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.tool-loading .spinner {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-glass);
  border-top-color: var(--accent);
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.dropzone {
  border: 2px dashed var(--border-glass);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft),
    transform var(--dur-fast) var(--ease-soft);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: rgba(0, 113, 227, 0.4);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.dropzone.uploaded {
  border-color: rgba(52, 199, 89, 0.45);
  background: rgba(52, 199, 89, 0.08);
}

.pdf-badge {
  width: 56px;
  height: 68px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--accent), #5856d6);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.file-name {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 10px 0;
}

.canvas-preview {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  border: 1px solid var(--border-glass);
}

.hidden {
  display: none !important;
}

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

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn-success {
  color: #fff;
  background: linear-gradient(135deg, var(--success), #248a3d);
  box-shadow: 0 8px 24px rgba(52, 199, 89, 0.25);
}

.btn-success:hover:not(:disabled) {
  transform: translateY(-1px);
}

.checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.checkbox-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-transform: none;
  font-weight: 500;
}