/* 2026 SaaS design system: lightweight CSS replacement for a Tailwind/Framer-style layer. */
:root {
  --saas-bg: #f6f8fb;
  --saas-card: rgba(255, 255, 255, 0.84);
  --saas-card-strong: rgba(255, 255, 255, 0.94);
  --saas-line: rgba(20, 99, 255, 0.14);
  --saas-glow: 0 24px 70px rgba(17, 33, 58, 0.12);
  --saas-glow-strong: 0 34px 90px rgba(17, 33, 58, 0.18);
  --saas-radius: 20px;
  --saas-radius-sm: 14px;
  --saas-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body.is-public-area {
  background:
    radial-gradient(circle at 8% 2%, rgba(var(--primary-rgb), 0.12), transparent 28%),
    radial-gradient(circle at 88% 0%, rgba(var(--accent-rgb), 0.13), transparent 26%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 46%, #f8fafc 100%);
  color: var(--text);
  text-rendering: optimizeLegibility;
}

.container {
  width: min(1180px, calc(100% - 32px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(var(--primary-rgb), 0.12);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}

.header-shell {
  min-height: 72px;
}

.brand,
.site-nav > a,
.nav-dropdown-toggle,
.menu-toggle {
  border-radius: 14px;
}

.brand {
  border: 1px solid rgba(var(--primary-rgb), 0.13);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 12px 28px rgba(17, 33, 58, 0.07);
}

.site-nav > a,
.nav-dropdown-toggle {
  transition: transform 0.18s var(--saas-ease), background 0.18s ease, border-color 0.18s ease;
}

.site-nav > a:hover,
.nav-dropdown-toggle:hover {
  transform: translateY(-1px);
}

.page-hero,
.hero-section,
.cta-section {
  position: relative;
  overflow: hidden;
}

.page-hero {
  border-radius: 28px;
  min-height: 280px;
  padding: clamp(2rem, 5vw, 4rem);
  background:
    linear-gradient(115deg, rgba(13, 26, 46, 0.9), rgba(var(--primary-rgb), 0.74) 52%, rgba(var(--accent-rgb), 0.7)),
    url("../images/pdf-suite-hero.png") center / cover no-repeat;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -38% 30%;
  height: 260px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  filter: blur(28px);
  animation: saasGlowDrift 8s var(--saas-ease) infinite alternate;
  pointer-events: none;
}

.page-hero h1,
.page-hero p,
.hero-title,
.hero-subtitle {
  text-wrap: balance;
}

.section {
  padding-block: clamp(2rem, 5vw, 4.5rem);
}

.card,
.panel,
.faq-item,
.tool-search,
.post-card,
.install-status,
.install-next {
  border: 1px solid var(--saas-line);
  background: var(--saas-card);
  box-shadow: var(--saas-glow);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.card,
.panel,
.post-card {
  border-radius: var(--saas-radius);
}

.card,
.tool-card,
.post-card,
.panel {
  transition:
    transform 0.24s var(--saas-ease),
    box-shadow 0.24s ease,
    border-color 0.24s ease,
    background 0.24s ease;
}

.card:hover,
.tool-card:hover,
.post-card:hover {
  transform: translateY(-7px);
  border-color: rgba(var(--primary-rgb), 0.34);
  box-shadow: var(--saas-glow-strong);
}

.btn {
  min-height: 42px;
  border-radius: 13px;
  font-weight: 800;
  transition: transform 0.18s var(--saas-ease), box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background-size: 180% 180%;
  animation: saasGradientMove 7s ease infinite;
  box-shadow: 0 14px 28px rgba(var(--primary-rgb), 0.22);
}

.btn-outline,
.btn-secondary {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(var(--primary-rgb), 0.18);
}

.tool-search {
  position: sticky;
  top: 86px;
  z-index: 45;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 0.85rem;
  padding: 0.85rem;
  border-radius: 18px;
}

.saas-filter-chips,
.blog-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.saas-filter-chips {
  grid-column: 1 / -1;
}

.saas-filter-chip {
  min-height: 36px;
  padding: 0 0.75rem;
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s var(--saas-ease), background 0.18s ease, color 0.18s ease;
}

.saas-filter-chip:hover,
.saas-filter-chip.is-active {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.blog-filter-bar {
  position: sticky;
  top: 86px;
  z-index: 35;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  padding: 0.85rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--saas-line);
  border-radius: 18px;
  background: var(--saas-card);
  box-shadow: var(--saas-glow);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.tool-search input,
.tool-search select,
.blog-filter-bar input,
.blog-filter-bar select,
.form-group input,
.form-group textarea,
.form-group select {
  min-height: 48px;
  border: 1px solid rgba(var(--primary-rgb), 0.14);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.tool-search input:focus,
.tool-search select:focus,
.blog-filter-bar input:focus,
.blog-filter-bar select:focus,
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 3px solid rgba(var(--primary-rgb), 0.16);
  border-color: rgba(var(--primary-rgb), 0.42);
}

.tools-category-block {
  scroll-margin-top: 150px;
}

.category-title {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.category-title::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 7px rgba(var(--primary-rgb), 0.1);
}

.tool-card {
  position: relative;
  isolation: isolate;
  min-height: 238px;
  overflow: hidden;
}

.tool-card::before,
.tool-card::after {
  position: absolute;
  top: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  pointer-events: none;
}

.tool-card::before {
  content: "Fast";
  right: 1rem;
  color: #075985;
  background: rgba(224, 242, 254, 0.9);
  border: 1px solid rgba(14, 165, 233, 0.18);
}

.tool-card:nth-child(3n)::after {
  content: "Trending";
  right: 4.6rem;
  color: #7c2d12;
  background: rgba(255, 237, 213, 0.92);
  border: 1px solid rgba(251, 146, 60, 0.22);
}

.tool-card::marker {
  display: none;
}

.card-icon,
.tool-icon-shell {
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.14), rgba(var(--accent-rgb), 0.1));
  color: var(--primary);
}

.tool-card:hover .card-icon,
.tool-card:hover .tool-icon-shell {
  transform: scale(1.06) rotate(-2deg);
}

.card-footer,
.tool-card .card-footer {
  margin-top: auto;
}

.grid-3,
.tools-grid,
.blog-grid,
.features-grid,
.categories-grid {
  gap: clamp(1rem, 2.2vw, 1.35rem);
}

.post-card {
  overflow: hidden;
}

.post-card::before,
.blog-card::before {
  content: "";
  display: block;
  height: 150px;
  margin: -1rem -1rem 1rem;
  background:
    linear-gradient(135deg, rgba(var(--primary-rgb), 0.72), rgba(var(--accent-rgb), 0.62)),
    url("../images/pdf-suite-hero.png") center / cover no-repeat;
  transform: scale(1);
  transition: transform 0.35s var(--saas-ease);
}

.post-card:hover::before,
.blog-card:hover::before {
  transform: scale(1.04);
}

.post-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.post-meta-row::after {
  content: "4 min read";
  color: var(--primary);
  font-weight: 800;
}

.is-tool-page .page-hero {
  margin-top: 1.2rem;
}

.is-tool-page .section:has(form) > div,
.is-tool-page .section > div:has(form) {
  max-width: 1040px !important;
}

.is-tool-page form {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  border-radius: 24px;
  background: var(--saas-card-strong);
  box-shadow: var(--saas-glow);
}

.is-tool-page form.panel,
.is-tool-page form:not(.admin-form) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.78fr);
  gap: 1.25rem;
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

.is-tool-page form::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, rgba(var(--primary-rgb), 0.7), transparent 35%, rgba(var(--accent-rgb), 0.58));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.72;
}

.is-tool-page form::after {
  content: "Live preview\a\aUpload a file to see document details, conversion status, and output readiness here.\a\aReady -> Processing -> Download";
  white-space: pre-line;
  min-height: 260px;
  display: grid;
  align-content: center;
  padding: 1.25rem;
  border-radius: 18px;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(248, 251, 255, 0.88)),
    repeating-linear-gradient(0deg, rgba(var(--primary-rgb), 0.06) 0 1px, transparent 1px 34px);
  border: 1px solid rgba(var(--primary-rgb), 0.14);
}

.is-tool-page form .form-group,
.is-tool-page form button,
.is-tool-page form .alert {
  grid-column: 1;
}

.is-tool-page input[type="file"] {
  width: 100%;
  padding: 1.2rem;
  border: 1.5px dashed rgba(var(--primary-rgb), 0.36);
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--accent-rgb), 0.07));
  cursor: pointer;
}

.is-tool-page input[type="file"]:hover {
  border-color: rgba(var(--primary-rgb), 0.58);
}

.is-tool-page button[type="submit"],
.is-tool-page .btn-large {
  width: 100%;
  min-height: 54px;
}

.saas-file-active {
  border-color: rgba(var(--accent-rgb), 0.7) !important;
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.12);
}

.saas-mobile-upload {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 70;
  display: none;
  justify-content: center;
  min-height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 900;
  box-shadow: 0 18px 42px rgba(var(--primary-rgb), 0.28);
}

.saas-reveal {
  opacity: 0;
  transform: translateY(18px);
  filter: none;
  transition: opacity 0.55s var(--saas-ease), transform 0.55s var(--saas-ease);
}

.saas-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: none;
}

.saas-filter-hidden {
  display: none !important;
}

@keyframes saasGradientMove {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes saasGlowDrift {
  from { transform: translate3d(-24px, 0, 0) scale(1); opacity: 0.62; }
  to { transform: translate3d(24px, -12px, 0) scale(1.06); opacity: 0.92; }
}

@media (max-width: 900px) {
  .tool-search {
    grid-template-columns: 1fr;
    top: 74px;
  }

  .blog-filter-bar {
    grid-template-columns: 1fr;
    top: 74px;
  }

  .is-tool-page form.panel,
  .is-tool-page form:not(.admin-form) {
    grid-template-columns: 1fr;
  }

  .is-tool-page form::after {
    grid-column: 1;
    min-height: 190px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .site-header {
    top: 0;
  }

  .page-hero {
    border-radius: 20px;
    min-height: 230px;
    padding: 1.35rem;
  }

  .section {
    padding-block: 2rem;
  }

  .tool-card::before,
  .tool-card:nth-child(3n)::after {
    position: static;
    width: fit-content;
    margin-bottom: 0.5rem;
  }

  .post-card::before,
  .blog-card::before {
    height: 120px;
  }

  body.is-tool-page {
    padding-bottom: 84px;
  }

  .saas-mobile-upload {
    display: flex;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}