/* UGOODU Tools Hub — brand-aligned catalog styles */
:root {
  --t-bg: #060d18;
  --t-bg-deep: #03070f;
  --t-surface: #0c1829;
  --t-surface-2: #122338;
  --t-surface-3: #18304a;
  --t-line: rgba(62, 203, 255, 0.14);
  --t-line-strong: rgba(62, 203, 255, 0.32);
  --t-cyan: #3ecbff;
  --t-cyan-2: #1ad4c0;
  --t-steel: #9eb0c4;
  --t-text: #eef4fb;
  --t-muted: #8b9db3;
  --t-white: #ffffff;
  --t-radius: 10px;
  --t-radius-sm: 6px;
  --t-max: 1180px;
  --t-header-h: 68px;
  --t-font: "Bahnschrift", "Segoe UI Variable Display", "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --t-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body.tools-hub {
  margin: 0;
  min-height: 100vh;
  font-family: var(--t-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--t-text);
  background: var(--t-bg-deep);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: 0;
  background: none;
  cursor: pointer;
  color: inherit;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.t-container {
  width: min(100% - 2rem, var(--t-max));
  margin-inline: auto;
}

.t-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 45% at 50% -8%, rgba(62, 203, 255, 0.2), transparent 55%),
    radial-gradient(ellipse 45% 35% at 92% 18%, rgba(26, 212, 192, 0.1), transparent 50%),
    radial-gradient(ellipse 40% 40% at 8% 75%, rgba(62, 203, 255, 0.07), transparent 55%),
    linear-gradient(180deg, var(--t-bg) 0%, var(--t-bg-deep) 100%);
}

.t-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(62, 203, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 203, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
}

/* Header */
.t-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--t-header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: background 0.3s var(--t-ease), border-color 0.3s var(--t-ease),
    backdrop-filter 0.3s var(--t-ease);
}

.t-header.is-scrolled {
  background: rgba(6, 13, 24, 0.82);
  border-bottom-color: var(--t-line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.t-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, var(--t-max));
  margin-inline: auto;
}

.t-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.t-brand img {
  height: 36px;
  width: auto;
}

.t-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.t-brand-text strong {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.t-brand-text span {
  font-size: 0.72rem;
  color: var(--t-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.t-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.t-nav a {
  padding: 0.45rem 0.85rem;
  border-radius: var(--t-radius-sm);
  font-size: 0.92rem;
  color: var(--t-steel);
  transition: color 0.2s, background 0.2s;
}

.t-nav a:hover,
.t-nav a.is-active {
  color: var(--t-cyan);
  background: rgba(62, 203, 255, 0.08);
}

.t-nav-cta {
  margin-left: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--t-radius-sm);
  background: linear-gradient(135deg, var(--t-cyan), var(--t-cyan-2));
  color: #041018 !important;
  font-weight: 650;
  font-size: 0.88rem;
}

.t-nav-cta:hover {
  filter: brightness(1.08);
  background: linear-gradient(135deg, var(--t-cyan), var(--t-cyan-2)) !important;
  color: #041018 !important;
}

.t-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--t-line);
  border-radius: var(--t-radius-sm);
  color: var(--t-steel);
}

.t-menu-btn span,
.t-menu-btn span::before,
.t-menu-btn span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: transform 0.25s;
}

.t-menu-btn span::before,
.t-menu-btn span::after {
  content: "";
  position: absolute;
  left: 0;
}

.t-menu-btn span::before {
  top: -6px;
}

.t-menu-btn span::after {
  top: 6px;
}

.t-mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem 1.25rem;
  border-bottom: 1px solid var(--t-line);
  background: rgba(6, 13, 24, 0.95);
}

.t-mobile-nav.is-open {
  display: flex;
}

.t-mobile-nav a {
  padding: 0.75rem 0.85rem;
  border-radius: var(--t-radius-sm);
  color: var(--t-steel);
}

.t-mobile-nav a:hover {
  color: var(--t-cyan);
  background: rgba(62, 203, 255, 0.08);
}

/* Hero */
.t-hero {
  padding: 3.5rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}

.t-hero-inner {
  display: grid;
  gap: 1.25rem;
  max-width: 720px;
}

.t-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--t-cyan);
}

.t-eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--t-cyan);
}

.t-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.t-hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--t-cyan), var(--t-cyan-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.t-hero-lead {
  margin: 0;
  color: var(--t-muted);
  font-size: 1.05rem;
  max-width: 36em;
}

.t-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 0.5rem;
  color: var(--t-steel);
  font-size: 0.88rem;
}

.t-hero-meta strong {
  color: var(--t-cyan);
  font-weight: 650;
}

/* Toolbar */
.t-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin: 0.5rem 0 1.75rem;
}

.t-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.t-tab {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--t-line);
  background: rgba(12, 24, 41, 0.6);
  color: var(--t-steel);
  font-size: 0.88rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s, transform 0.2s;
}

.t-tab:hover {
  color: var(--t-text);
  border-color: var(--t-line-strong);
}

.t-tab.is-active {
  color: #041018;
  background: linear-gradient(135deg, var(--t-cyan), var(--t-cyan-2));
  border-color: transparent;
  font-weight: 650;
}

.t-search {
  position: relative;
  flex: 1 1 220px;
  max-width: 320px;
  margin-left: auto;
}

.t-search input {
  width: 100%;
  padding: 0.65rem 0.95rem 0.65rem 2.4rem;
  border-radius: var(--t-radius-sm);
  border: 1px solid var(--t-line);
  background: rgba(12, 24, 41, 0.75);
  color: var(--t-text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.t-search input::placeholder {
  color: var(--t-muted);
}

.t-search input:focus {
  border-color: var(--t-line-strong);
  box-shadow: 0 0 0 3px rgba(62, 203, 255, 0.12);
}

.t-search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--t-muted);
  pointer-events: none;
  font-size: 0.95rem;
}

/* Featured strip */
.t-featured {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.t-feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.25rem 1.2rem;
  border-radius: var(--t-radius);
  border: 1px solid var(--t-line);
  background:
    linear-gradient(160deg, rgba(62, 203, 255, 0.08), transparent 55%),
    var(--t-surface);
  overflow: hidden;
  min-height: 148px;
  transition: transform 0.35s var(--t-ease), border-color 0.35s, box-shadow 0.35s;
}

.t-feature-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent, var(--t-cyan)) 0%, transparent 70%);
  opacity: 0.18;
  pointer-events: none;
}

.t-feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--t-line-strong);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.t-feature-card .t-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(62, 203, 255, 0.1);
  border: 1px solid var(--t-line);
  font-size: 1.25rem;
  font-family: ui-monospace, Consolas, monospace;
}

.t-feature-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
}

.t-feature-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--t-muted);
  line-height: 1.5;
  flex: 1;
}

.t-feature-card .t-go {
  font-size: 0.8rem;
  color: var(--t-cyan);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* Section */
.t-section {
  padding-bottom: 3.5rem;
}

.t-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.t-section-head h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 650;
}

.t-section-head p {
  margin: 0.25rem 0 0;
  color: var(--t-muted);
  font-size: 0.9rem;
}

.t-count {
  color: var(--t-muted);
  font-size: 0.85rem;
}

/* Grid cards */
.t-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.t-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.35rem 1.25rem;
  border-radius: var(--t-radius);
  border: 1px solid var(--t-line);
  background: var(--t-surface);
  min-height: 180px;
  transition: transform 0.3s var(--t-ease), border-color 0.3s, box-shadow 0.3s,
    background 0.3s;
  animation: t-fade-up 0.55s var(--t-ease) both;
}

.t-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent, var(--t-cyan)) 55%, var(--t-line));
  background: var(--t-surface-2);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
}

.t-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.t-card .t-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 1.35rem;
  font-family: ui-monospace, Consolas, monospace;
  background: color-mix(in srgb, var(--accent, var(--t-cyan)) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, var(--t-cyan)) 35%, transparent);
  color: var(--accent, var(--t-cyan));
}

.t-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: var(--t-cyan);
  background: rgba(62, 203, 255, 0.1);
  border: 1px solid var(--t-line);
  white-space: nowrap;
}

.t-card h3 {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 650;
}

.t-card p {
  margin: 0;
  color: var(--t-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  flex: 1;
}

.t-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.t-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--t-steel);
  background: rgba(158, 176, 196, 0.1);
  border: 1px solid rgba(158, 176, 196, 0.16);
}

.t-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.25rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--t-line);
  font-size: 0.82rem;
  color: var(--t-cyan);
  font-weight: 600;
}

.t-card-foot span:last-child {
  opacity: 0.7;
  transition: transform 0.25s var(--t-ease), opacity 0.25s;
}

.t-card:hover .t-card-foot span:last-child {
  transform: translateX(4px);
  opacity: 1;
}

.t-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
  color: var(--t-muted);
  border: 1px dashed var(--t-line);
  border-radius: var(--t-radius);
  background: rgba(12, 24, 41, 0.4);
}

/* Highlights / trust */
.t-trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0.5rem 0 3rem;
}

.t-trust-item {
  padding: 1.25rem 1.2rem;
  border-radius: var(--t-radius);
  border: 1px solid var(--t-line);
  background: linear-gradient(180deg, rgba(18, 35, 56, 0.8), rgba(12, 24, 41, 0.5));
}

.t-trust-item h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 650;
}

.t-trust-item p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--t-muted);
}

.t-trust-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--t-cyan);
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

/* Footer */
.t-footer {
  border-top: 1px solid var(--t-line);
  padding: 1.75rem 0 2.25rem;
  color: var(--t-muted);
  font-size: 0.85rem;
}

.t-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.t-footer a {
  color: var(--t-steel);
}

.t-footer a:hover {
  color: var(--t-cyan);
}

.t-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

/* Motion */
@keyframes t-fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.t-card:nth-child(1) {
  animation-delay: 0.02s;
}
.t-card:nth-child(2) {
  animation-delay: 0.06s;
}
.t-card:nth-child(3) {
  animation-delay: 0.1s;
}
.t-card:nth-child(4) {
  animation-delay: 0.14s;
}
.t-card:nth-child(5) {
  animation-delay: 0.18s;
}
.t-card:nth-child(6) {
  animation-delay: 0.22s;
}
.t-card:nth-child(7) {
  animation-delay: 0.26s;
}
.t-card:nth-child(8) {
  animation-delay: 0.3s;
}
.t-card:nth-child(9) {
  animation-delay: 0.34s;
}

@media (prefers-reduced-motion: reduce) {
  .t-card,
  .t-feature-card {
    animation: none !important;
    transition: none !important;
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .t-featured {
    grid-template-columns: repeat(2, 1fr);
  }
  .t-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .t-nav {
    display: none;
  }
  .t-menu-btn {
    display: inline-flex;
  }
  .t-brand-text {
    display: none;
  }
  .t-featured,
  .t-grid,
  .t-trust {
    grid-template-columns: 1fr;
  }
  .t-search {
    max-width: none;
    margin-left: 0;
    flex: 1 1 100%;
  }
  .t-hero {
    padding: 2.25rem 0 1.75rem;
  }
  .t-section-head {
    flex-direction: column;
    align-items: flex-start;
  }
}