/* ==========================================================================
   PixelCraftin Studio — Civil Engineering Toolkit (civil.css)
   Seamless extension of style.css — unified design system & tokens
   ========================================================================== */

/* ---------- IS-Code Badges Row ---------- */
.is-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 36px 0 0;
}

.is-badge {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--text-muted);
  transition: transform .2s var(--ease), border-color .2s, color .2s, background .2s, box-shadow .2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.is-badge:hover {
  border-color: var(--accent);
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-card));
  box-shadow: 0 0 16px rgba(92, 124, 250, 0.35);
  transform: translateY(-2px);
}

/* ---------- Search Bar ---------- */
.tools-search-wrap {
  position: relative;
  max-width: 680px;
  margin-bottom: 28px;
}

.tools-search-wrap svg {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-faint);
  pointer-events: none;
  transition: color .2s;
}

.tools-search {
  width: 100%;
  padding: 16px 20px 16px 48px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  font-family: var(--font-body);
  font-size: .92rem;
  outline: none;
  transition: border-color .25s, box-shadow .25s, background .25s;
}

.tools-search:focus {
  border-color: var(--accent);
  background: var(--bg-raised);
  box-shadow: 0 0 20px rgba(92, 124, 250, 0.25), 0 0 0 1px var(--accent);
}

.tools-search:focus + svg,
.tools-search-wrap:focus-within svg {
  color: var(--accent);
}

.tools-search::placeholder {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
}

/* ---------- Filter Bar ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.filter-pill {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .2s var(--ease);
}

.filter-pill:hover {
  border-color: var(--accent);
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-card));
}

.filter-pill.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(92, 124, 250, 0.45);
}

/* ---------- Tools Grid ---------- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}

/* ---------- Tool Card ---------- */
.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  cursor: pointer;
  transition: transform .25s var(--ease), border-color .25s, box-shadow .25s, background .25s;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse at 0% 0%, rgba(92, 124, 250, 0.12), transparent 70%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}

.tool-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 3%, var(--bg-card));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 25px rgba(92, 124, 250, 0.2);
}

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

.tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  flex-shrink: 0;
  transition: background .25s, border-color .25s, transform .25s var(--ease);
}

.tool-card:hover .tool-card-icon {
  border-color: var(--accent);
  transform: scale(1.06);
}

.tool-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tool-card-cat {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin: 0 0 6px;
}

.tool-card-name {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
  line-height: 1.3;
}

.tool-card-desc {
  font-size: .84rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-soft);
  margin-top: auto;
}

.tool-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tool-tag {
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .08em;
  color: var(--text-faint);
}

.tool-launch-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-strong);
  font-weight: 600;
  transition: transform .2s var(--ease), color .2s;
}

.tool-card:hover .tool-launch-btn {
  color: #fff;
  transform: translateX(4px);
}

.tool-launch-btn svg {
  width: 12px;
  height: 12px;
}

.tool-card.hidden {
  display: none !important;
}

/* ---------- Pagination Bar ---------- */
.pagination-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
  padding: 16px 0;
}

.pagination-btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .05em;
  cursor: pointer;
  transition: all .2s var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 38px;
}

.pagination-btn:hover:not(.disabled):not(.active) {
  border-color: var(--accent);
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 10%, var(--bg-card));
  transform: translateY(-1px);
}

.pagination-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 16px rgba(92, 124, 250, 0.4);
  pointer-events: none;
}

.pagination-btn.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

@media (max-width: 640px) {
  .pagination-wrap {
    gap: 6px;
    margin-top: 30px;
  }
  .pagination-btn {
    padding: 6px 12px;
    font-size: .7rem;
    height: 34px;
    min-width: 34px;
  }
}

/* ---------- No Results ---------- */
.tools-no-results {
  display: none;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.tools-no-results.show {
  display: block;
}

.tools-no-results svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  color: var(--text-faint);
  display: block;
}

/* ---------- PWA Feature Section ---------- */
#features {
  padding-top: 170px;
  padding-bottom: 90px;
}

.pwa-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin: 0;
}

.pwa-feature {
  position: relative;
  padding: 18px 18px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .25s var(--ease), border-color .25s, box-shadow .25s, background .25s;
  overflow: hidden;
}

.pwa-feature::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse at 0% 0%, rgba(92, 124, 250, 0.12), transparent 70%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}

.pwa-feature:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 3%, var(--bg-card));
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 22px rgba(92, 124, 250, 0.18);
}

.pwa-feature:hover::before {
  opacity: 1;
}

.pwa-feature-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform .2s var(--ease), border-color .2s, background .2s;
}

.pwa-feature:hover .pwa-feature-icon {
  border-color: var(--accent);
  transform: scale(1.06);
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-raised));
}

.pwa-feature-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .92rem;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
}

.pwa-feature-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

/* ---------- Civil Modal Window ---------- */
.civil-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 4, 8, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}

.civil-modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.civil-modal-window {
  width: min(1280px, 96vw);
  height: min(92vh, 900px);
  max-height: calc(100dvh - 24px);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transform: scale(0.95) translateY(14px);
  transition: transform .3s cubic-bezier(0.16, 1, 0.3, 1);
}

.civil-modal-overlay.is-open .civil-modal-window {
  transform: scale(1) translateY(0);
}

.civil-modal-header {
  height: 54px;
  min-height: 54px;
  padding: 0 18px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

.civil-modal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.civil-modal-icon {
  font-size: 1.2rem;
}

.civil-modal-name {
  font-size: .92rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.civil-modal-cat {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.civil-modal-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.civil-modal-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all .2s;
}

.civil-modal-action-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--bg-raised);
}

.civil-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.3rem;
  line-height: 1;
  transition: all .2s;
}

.civil-modal-close:hover {
  color: #ff5c5c;
  border-color: rgba(255, 92, 92, 0.4);
  background: rgba(255, 92, 92, 0.1);
}

.civil-modal-body {
  flex: 1;
  position: relative;
  width: 100%;
  height: calc(100% - 54px);
  background: #0f1117;
  overflow: hidden;
}

.civil-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ---------- Responsive Overrides ---------- */
@media (max-width: 768px) {
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .filter-bar {
    gap: 6px;
  }
  .filter-pill {
    padding: 6px 12px;
    font-size: .62rem;
  }
  #features {
    padding-top: 100px;
    padding-bottom: 70px;
  }
  .civil-modal-overlay {
    padding: 6px;
  }
  .civil-modal-window {
    width: 98vw;
    height: 95dvh;
    max-height: calc(100dvh - 12px);
    border-radius: var(--radius-md);
  }
  .civil-modal-header {
    height: 48px;
    min-height: 48px;
    padding: 0 12px;
  }
  .civil-modal-cat {
    display: none;
  }
  .civil-modal-action-btn span {
    display: none;
  }
  .civil-modal-action-btn {
    padding: 6px 10px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: clamp(14px, 4vw, 18px);
    width: 100%;
    align-items: center;
  }
  .hero-actions .btn {
    flex: 1;
    width: auto;
    min-width: 0;
    padding: 15px 10px;
    font-size: .67rem;
    letter-spacing: .07em;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
  }
  .pwa-strip {
    grid-template-columns: 1fr;
  }
  .tools-search-wrap {
    max-width: 100%;
  }
}