:root {
  --bg: #f4f5f7;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --border-soft: #e0e4eb;
  --accent: #4c6ef5;
  --accent-soft: #e5eafc;
  --accent-strong: #364fc7;
  --text-main: #1f2933;
  --text-muted: #5f6b7c;
  --shadow-soft: 0 12px 25px rgba(20, 24, 39, 0.12);
  --radius-lg: 18px;
  --radius-pill: 999px;
  --transition-fast: 160ms ease-out;
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg);
}

body {
  display: flex;
}

.page {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px clamp(20px, 4vw, 32px) 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* HEADER */

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.logo-dot {
  width: 30px;
  height: 30px;
  border-radius: 40%;
  background: var(--accent);
  box-shadow: 0 5px 15px rgba(76, 110, 245, 0.35);
}

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

.logo-main {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

.logo-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* QUICK NAV */

.quick-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.quick-nav-button {
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.78rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast);
}

.quick-nav-button span.short {
  font-weight: 600;
}

.quick-nav-button span.domain {
  color: var(--text-muted);
}

.quick-nav-button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(20, 24, 39, 0.15);
}

/* MAIN */

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero {
  padding: 20px 18px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
}

.hero h1 {
  margin: 0 0 4px;
  font-size: clamp(1.35rem, 2.1vw, 1.7rem);
  letter-spacing: 0.03em;
}

.hero p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.grid-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-title {
  margin: 0;
  font-size: 0.94rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* GRID */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.grid-empty {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.grid-empty code {
  color: var(--accent-strong);
  font-size: 0.8rem;
}

/* CARD */

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: var(--bg-card);
  box-shadow: 0 10px 30px rgba(20, 24, 39, 0.12);
  text-decoration: none;
  color: var(--text-main);
  overflow: hidden;
  transition:
    transform 160ms ease-out,
    box-shadow 160ms ease-out,
    border-color 160ms ease-out,
    background 160ms ease-out;
}

.tool-card:hover {
  transform: translateY(-3px) translateZ(0);
  box-shadow: 0 18px 40px rgba(20, 24, 39, 0.18);
  border-color: var(--accent);
}

.tool-card-image-wrapper {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #f0f2f5;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-card-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tool-card-chip {
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(244, 245, 247, 0.9);
  color: var(--text-muted);
  font-size: 0.7rem;
  border: 1px solid var(--border-soft);
}

.tool-card-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tool-card-title {
  font-size: 0.98rem;
  font-weight: 600;
}

.tool-card-url {
  font-size: 0.8rem;
  color: var(--text-muted);
  word-break: break-all;
}

.tool-card-meta {
  margin-top: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tool-card-meta span.right {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* FOOTER */

.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 6px;
  border-top: 1px solid var(--border-soft);
}

.footer-dot {
  color: var(--accent);
}

/* RESPONSIVE */

@media (max-width: 720px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .quick-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero {
    padding: 16px 14px 14px;
  }
}