/* ─────────────────────────────────────────
   TOOLKIX — Design System
   ───────────────────────────────────────── */

:root {
  --bg:           #060a14;
  --bg-2:         #0b1222;
  --surface:      rgba(255, 255, 255, 0.035);
  --surface-h:    rgba(255, 255, 255, 0.06);
  --border:       rgba(255, 255, 255, 0.07);
  --border-h:     rgba(255, 255, 255, 0.14);
  --accent:       #00d4ff;
  --accent-dim:   rgba(0, 212, 255, 0.12);
  --accent-glow:  rgba(0, 212, 255, 0.18);
  --violet:       #7c3aed;
  --violet-dim:   rgba(124, 58, 237, 0.15);
  --text-1:       #eef2ff;
  --text-2:       #7a8499;
  --text-3:       #3d4a63;
  --radius:       18px;
  --radius-sm:    10px;
  --blur:         24px;
  --font-brand:   'Orbitron', monospace;
  --font-body:    'Syne', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text-1);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ─── Background ───────────────────────── */

.bg-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: drift linear infinite;
}

.orb-1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.25) 0%, transparent 70%);
  top: -180px;
  left: -100px;
  animation-duration: 28s;
  animation-delay: 0s;
}

.orb-2 {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.28) 0%, transparent 70%);
  top: 40%;
  right: -120px;
  animation-duration: 34s;
  animation-delay: -10s;
  animation-direction: reverse;
}

.orb-3 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.14) 0%, transparent 70%);
  bottom: -100px;
  left: 38%;
  animation-duration: 22s;
  animation-delay: -5s;
}

@keyframes drift {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -24px) scale(1.04); }
  66%  { transform: translate(-20px, 18px) scale(0.97); }
  100% { transform: translate(0, 0) scale(1); }
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 30%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 30%, black 30%, transparent 100%);
}

/* ─── Header ───────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  background: rgba(6, 10, 20, 0.7);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
  flex-shrink: 0;
  overflow: hidden;
}

.logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-name {
  font-family: var(--font-brand);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-1);
  line-height: 1;
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  width: 15px;
  height: 15px;
  color: var(--text-3);
  pointer-events: none;
}

.search-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 9px 14px 9px 36px;
  width: 220px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  backdrop-filter: blur(12px);
}

.search-input::placeholder {
  color: var(--text-3);
}

.search-input:focus {
  border-color: rgba(0, 212, 255, 0.4);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}

.tool-count-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  white-space: nowrap;
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

/* ─── Main / Hero ──────────────────────── */

.main {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 40px 80px;
}

.hero {
  margin-bottom: 52px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 18px;
  opacity: 0;
  animation: fade-up 0.6s ease forwards;
}

.hero-title {
  font-family: var(--font-brand);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--text-1);
  margin-bottom: 16px;
  opacity: 0;
  animation: fade-up 0.6s ease 0.1s forwards;
}

.hero-title .accent {
  background: linear-gradient(90deg, var(--accent), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-2);
  max-width: 520px;
  line-height: 1.65;
  opacity: 0;
  animation: fade-up 0.6s ease 0.2s forwards;
}

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

/* ─── Filter Bar ───────────────────────── */

.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  opacity: 0;
  animation: fade-up 0.6s ease 0.3s forwards;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
}

.filter-btn:hover {
  color: var(--text-1);
  border-color: var(--border-h);
  background: var(--surface-h);
}

.filter-btn.active {
  color: var(--accent);
  border-color: rgba(0, 212, 255, 0.35);
  background: var(--accent-dim);
}

/* ─── Tool Grid ────────────────────────── */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* Skeleton loaders */
.skeleton-card {
  height: 240px;
  border-radius: var(--radius);
  background: linear-gradient(
    90deg,
    var(--surface) 0%,
    rgba(255,255,255,0.06) 50%,
    var(--surface) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
  border: 1px solid var(--border);
}

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

/* ─── Tool Card ────────────────────────── */

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(11, 18, 34, 0.65);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 26px 22px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.35s cubic-bezier(0.23, 1, 0.32, 1),
              border-color 0.35s ease;
  opacity: 0;
  animation: card-in 0.5s ease forwards;
}

.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(
    135deg,
    var(--card-color-a, rgba(0,212,255,0.07)) 0%,
    transparent 55%
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.tool-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--card-color-b, rgba(0,212,255,0.5)), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.tool-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-h);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255,255,255,0.04),
    0 0 40px var(--card-glow, rgba(0,212,255,0.1));
}

.tool-card:hover::before,
.tool-card:hover::after {
  opacity: 1;
}

.tool-card:active {
  transform: translateY(-2px);
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Card top row */
.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: box-shadow 0.35s ease;
}

.tool-card:hover .card-icon-wrap {
  box-shadow: 0 0 20px var(--card-glow, rgba(0,212,255,0.25));
}

.card-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-3);
  text-transform: uppercase;
}

.status-dot-sm {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.7);
}

/* Card body */
.card-name {
  font-family: var(--font-brand);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-1);
  margin-bottom: 4px;
  line-height: 1.2;
}

.card-tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--card-color-b, var(--accent));
  text-transform: uppercase;
  margin-bottom: 14px;
  opacity: 0.85;
}

.card-desc {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 22px;
}

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
}

.card-category {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 6px;
  padding: 4px 10px;
}

.card-launch {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--card-color-b, var(--accent));
  border: 1px solid var(--card-color-b, rgba(0,212,255,0.4));
  background: transparent;
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.card-launch:hover {
  background: var(--card-color-a, var(--accent-dim));
  box-shadow: 0 0 16px var(--card-glow, rgba(0,212,255,0.2));
}

.card-launch svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s ease;
}

.card-launch:hover svg {
  transform: translate(2px, -2px);
}

/* ─── Empty State ──────────────────────── */

.empty-state[hidden] {
  display: none;
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 80px 20px;
  color: var(--text-3);
  font-size: 14px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
}

.empty-icon {
  width: 48px;
  height: 48px;
  opacity: 0.4;
}

.empty-icon svg {
  width: 100%;
  height: 100%;
}

/* ─── Footer ───────────────────────────── */

.footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  border-top: 1px solid var(--border);
}

.footer code {
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 6px;
  border-radius: 4px;
}

.footer-sep {
  opacity: 0.3;
}

/* ─── Responsive ───────────────────────── */

@media (max-width: 700px) {
  .header {
    padding: 0 20px;
  }

  .main {
    padding: 44px 20px 60px;
  }

  .search-input {
    width: 160px;
  }

  .logo-text {
    display: none;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    text-align: center;
  }

  .footer-sep {
    display: none;
  }
}

@media (max-width: 480px) {
  .header-right {
    gap: 8px;
  }

  .tool-count-chip {
    display: none;
  }
}