/* ═══════════════════════════════════════════════════════
   Atlas Solutions · PDF Tools Landing
   styles.css
   Typefaces: Playfair Display (logo) + DM Sans (everything else)
   Mode: Light / Corporate utility
   ═══════════════════════════════════════════════════════ */

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

/* ── TOKENS ────────────────────────────────────────────── */
:root {
  /* Brand */
  --navy:         #0D1B2A;
  --navy-mid:     #1A2F48;
  --navy-light:   #2A4567;
  --cyan:         #3ECFCF;
  --cyan-mid:     rgba(62, 207, 207, 0.14);
  --cyan-border:  rgba(62, 207, 207, 0.30);
  --cyan-glow:    rgba(62, 207, 207, 0.25);

  /* Surfaces */
  --bg:           #F7F8FA;
  --surface:      #FFFFFF;
  --border:       #E2E8F0;
  --border-dark:  #CBD5E1;

  /* Text */
  --ink:          #0D1B2A;
  --body:         #334155;
  --sub:          #64748B;
  --muted:        #94A3B8;

  /* Tool accents (each tool gets a subtle tint) */
  --convert-h:    #2563EB;   /* blue */
  --convert-bg:   #EFF6FF;
  --merge-h:      #16A34A;   /* green */
  --merge-bg:     #F0FDF4;
  --split-h:      #9333EA;   /* violet */
  --split-bg:     #FAF5FF;
  --ocr-h:        #EA580C;   /* orange — featured */
  --ocr-bg:       #FFF7ED;
  --soon-h:       #94A3B8;
  --soon-bg:      #F8FAFC;

  /* Fonts */
  --fd:           'Playfair Display', Georgia, serif;
  --fb:           'DM Sans', system-ui, sans-serif;

  /* Layout */
  --max:          1160px;
  --section-v:    6rem;
  --radius:       8px;
  --radius-lg:    14px;
  --radius-xl:    20px;

  /* Shadow */
  --sh-xs:        0 1px 3px rgba(13, 27, 42, 0.07);
  --sh-sm:        0 2px 10px rgba(13, 27, 42, 0.08);
  --sh-md:        0 8px 30px rgba(13, 27, 42, 0.11);
  --sh-lg:        0 24px 60px rgba(13, 27, 42, 0.14);

  /* Motion */
  --ease:         cubic-bezier(0.16, 1, 0.3, 1);
  --dur:          0.26s;
}

/* ── BASE ──────────────────────────────────────────────── */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body {
  font-family: var(--fb);
  background: var(--bg);
  color: var(--body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
ul { list-style: none; }

/* ── SKIP LINK ─────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -120%;
  left: 1rem;
  background: var(--navy);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* ── CONTAINER ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ══════════════════════════════════════════════════════════
   HEADER
══════════════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 300;
  background: rgba(247, 248, 250, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.hd-inner {
  display: flex;
  align-items: center;
  height: 58px;
  gap: 2rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  gap: 0.05em;
  font-family: var(--fd);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  flex-shrink: 0;
  transition: opacity var(--dur);
}
.logo:hover { opacity: 0.7; }
.logo-dot  { color: var(--cyan); font-style: italic; font-weight: 400; }
.logo-sub  {
  font-family: var(--fb);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--sub);
  margin-left: 0.1rem;
  text-transform: lowercase;
}

/* Nav */
.hd-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-left: auto;
}
.hd-link {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--sub);
  transition: color var(--dur);
}
.hd-link:hover { color: var(--ink); }

/* CTA */
.hd-cta {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy);
  background: transparent;
  border: 1.5px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 0.42rem 1rem;
  transition:
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    color var(--dur) var(--ease);
  white-space: nowrap;
}
.hd-cta:hover {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

/* ══════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════ */
.hero {
  background: var(--navy);
  padding: 5.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}

/* Grid texture */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(62,207,207,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62,207,207,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* Bottom fade */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--navy));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto auto;
  gap: 2.5rem;
}

/* Eyebrow */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.2rem;
}
.eyebrow-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: eyebrow-pulse 2.5s ease-in-out infinite;
}
@keyframes eyebrow-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

/* H1 */
.hero-h1 {
  font-family: var(--fd);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.04;
  letter-spacing: -0.025em;
}
.hero-h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--cyan);
}

.hero-desc {
  margin-top: 1.2rem;
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  max-width: 380px;
  line-height: 1.7;
}

/* Pills */
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pill {
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  white-space: nowrap;
}
.pill--soon {
  color: rgba(255,255,255,0.35);
  border-style: dashed;
}
.pill--soon sup {
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  margin-left: 0.2rem;
  vertical-align: super;
}

/* Decorative stacked pages */
.hero-deco {
  position: absolute;
  right: -2rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.deco-page {
  position: absolute;
  width: 200px;
  height: 260px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
}
.deco-page--1 { transform: rotate(6deg)  translate(40px, -30px); }
.deco-page--2 { transform: rotate(2deg)  translate(20px, 0); }
.deco-page--3 { transform: rotate(-3deg) translate(0, 20px); }

@media (max-width: 700px) { .hero-deco { display: none; } }

/* ══════════════════════════════════════════════════════════
   TOOLS SECTION
══════════════════════════════════════════════════════════ */
.tools-section {
  padding: 4rem 0 5rem;
}

.tools-header {
  margin-bottom: 2.5rem;
}
.tools-title {
  font-family: var(--fd);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.tools-subtitle {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--sub);
}

/* ── GRID ──────────────────────────────────────────────── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* ── CARD BASE ─────────────────────────────────────────── */
.tool-card {
  position: relative;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--sh-xs);
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
  /* Remove default link underline */
  text-decoration: none;
  color: inherit;
}

/* Glyph watermark */
.tc-glyph {
  position: absolute;
  bottom: -0.3rem;
  right: 0.8rem;
  font-size: 8rem;
  line-height: 1;
  font-weight: 700;
  opacity: 0.05;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  user-select: none;
}

/* Hover state */
.tool-card:not(.tool-card--soon):hover {
  transform: translateY(-5px);
  box-shadow: var(--sh-md);
}
.tool-card:not(.tool-card--soon):hover .tc-glyph {
  opacity: 0.1;
  transform: scale(1.08) translateY(-4px);
}
.tool-card:not(.tool-card--soon):active {
  transform: translateY(-2px) scale(0.99);
  box-shadow: var(--sh-sm);
  transition-duration: 0.1s;
}

/* Top row inside card */
.tc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tc-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--sub);
  border: 1px solid var(--border);
}
.tc-arrow {
  font-size: 0.9rem;
  color: var(--muted);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.tool-card:not(.tool-card--soon):hover .tc-arrow {
  transform: translateX(4px);
  color: var(--cyan);
}

/* Card name */
.tc-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

/* Card desc */
.tc-desc {
  font-size: 0.87rem;
  color: var(--sub);
  line-height: 1.65;
}

/* Format list */
.tc-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin-top: 0.25rem;
}
.tc-formats li {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--sub);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.18rem 0.5rem;
  letter-spacing: 0.03em;
}

/* Card footer */
.tc-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.tc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy);
  transition: color var(--dur) var(--ease);
}
.tool-card:not(.tool-card--soon):hover .tc-btn {
  color: var(--cyan);
}
.tc-btn--disabled {
  color: var(--muted);
  cursor: default;
}

/* ── PER-TOOL HOVER TINTS ──────────────────────────────── */
#card-convert:hover,
a[href="/convert"]:hover { border-color: rgba(37, 99, 235, 0.35); }
a[href="/convert"]:hover .tc-formats li { border-color: rgba(37,99,235,0.2); }

a[href="/merge"]:hover   { border-color: rgba(22, 163, 74, 0.35); }
a[href="/split"]:hover   { border-color: rgba(147, 51, 234, 0.35); }

/* ── FEATURED CARD (OCR) ───────────────────────────────── */
.tool-card--featured {
  background: var(--navy);
  border-color: var(--navy-mid);
}
.tool-card--featured .tc-name   { color: #FFFFFF; }
.tool-card--featured .tc-desc   { color: rgba(255,255,255,0.55); }
.tool-card--featured .tc-glyph  { color: var(--cyan); opacity: 0.12; }
.tool-card--featured .tc-arrow  { color: rgba(255,255,255,0.35); }
.tool-card--featured .tc-btn    { color: var(--cyan); }
.tool-card--featured .tc-footer { border-top-color: rgba(255,255,255,0.1); }
.tool-card--featured .tc-formats li {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.6);
}
.tool-card--featured .tc-tag--featured {
  background: var(--cyan);
  color: var(--navy);
  border-color: transparent;
}
.tc-btn--featured { color: var(--cyan) !important; }

.tool-card--featured:hover {
  border-color: var(--cyan-border);
  box-shadow: 0 8px 30px rgba(62,207,207,0.18);
}
.tool-card--featured:hover .tc-arrow { color: var(--cyan); }

/* ── SOON CARDS ────────────────────────────────────────── */
.tool-card--soon {
  background: var(--surface);
  opacity: 0.6;
  cursor: not-allowed;
}
.tool-card--soon:hover {
  transform: none;
  box-shadow: var(--sh-xs);
}
.tc-soon-badge {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #FFFFFF;
  background: var(--muted);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

/* ══════════════════════════════════════════════════════════
   WHY SECTION
══════════════════════════════════════════════════════════ */
.why-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--section-v) 0;
}
.why-inner {
  display: grid;
  grid-template-rows: auto auto;
  gap: 3rem;
}
.why-title {
  font-family: var(--fd);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 560px;
}
.why-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--cyan);
}
/* Apply cyan accent to em within why-title but make it navy-readable */
.why-section .why-title em { color: #0D1B2A; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.why-item {}
.why-icon {
  width: 40px;
  height: 40px;
  color: var(--cyan);
  margin-bottom: 1rem;
}
.why-icon svg { width: 100%; height: 100%; }
.why-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.why-item-text {
  font-size: 0.85rem;
  color: var(--sub);
  line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════
   ATLAS STRIP
══════════════════════════════════════════════════════════ */
.atlas-strip {
  background: var(--navy);
  padding: var(--section-v) 0;
  overflow: hidden;
  position: relative;
}
.strip-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.strip-eyebrow {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}
.strip-title {
  font-family: var(--fd);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}
.strip-desc {
  font-size: 0.92rem;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: 2rem;
}
.strip-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy);
  background: var(--cyan);
  border-radius: var(--radius);
  padding: 0.85rem 1.8rem;
  transition:
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.strip-cta:hover {
  box-shadow: 0 0 0 4px var(--cyan-glow), 0 4px 16px rgba(62,207,207,0.3);
  transform: translateY(-2px);
}
.strip-cta:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.strip-cta svg { width: 16px; height: 16px; }

/* Big decorative logo */
.strip-logo-wrap {
  flex-shrink: 0;
}
.strip-big-logo {
  font-family: var(--fd);
  font-size: clamp(5rem, 10vw, 9rem);
  font-weight: 700;
  color: rgba(255,255,255,0.04);
  letter-spacing: -0.04em;
  line-height: 1;
  user-select: none;
  white-space: nowrap;
}
.strip-big-logo span { color: rgba(62,207,207,0.12); }

/* ══════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 3.5rem 0 2.5rem;
  margin-top: auto;
}
.ft-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.logo--ft { font-size: 1.15rem; }
.ft-tagline {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  font-weight: 300;
  color: rgba(255,255,255,0.4);
  max-width: 220px;
  line-height: 1.65;
}
.ft-nav {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ft-nav-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 0.2rem;
}
.ft-nav a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--dur);
}
.ft-nav a:hover { color: var(--cyan); }
.ft-legal {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.ft-legal p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
}

/* ══════════════════════════════════════════════════════════
   FOCUS / ACCESSIBILITY
══════════════════════════════════════════════════════════ */
.tool-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ══════════════════════════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .eyebrow-dot { animation: none; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */

/* ── 1024px ── */
@media (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tool-card--featured {
    grid-column: span 2;
  }
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ft-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* ── 768px ── */
@media (max-width: 768px) {
  :root { --section-v: 4rem; }

  .hero { padding: 4rem 0 3.5rem; }
  .hero-h1 { font-size: clamp(2.2rem, 8vw, 3.2rem); }

  .hd-nav { display: none; }

  .tools-grid {
    grid-template-columns: 1fr;
  }
  .tool-card--featured {
    grid-column: span 1;
  }

  .strip-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .strip-logo-wrap { display: none; }

  .ft-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* ── 520px ── */
@media (max-width: 520px) {
  .why-grid {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }
  .ft-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .ft-legal { display: none; }

  .tc-glyph { font-size: 6rem; }
}