/* ============================================
   iPDFLove.com — Editorial Modern Theme
   ============================================ */

:root {
  --bg: #f5f1ea;
  --bg-alt: #ede6d9;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --ink-faint: #8a8a8a;
  --line: #d9d0bf;
  --accent: #c5543b;        /* terracotta */
  --accent-soft: #e8d5c4;
  --sage: #6b7f5a;
  --sage-soft: #c8d2b5;
  --cream: #faf7f0;
  --gold: #b8934a;

  --font-display: "Fraunces", "Cormorant Garamond", Georgia, serif;
  --font-body: "Inter Tight", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  --radius: 4px;
  --shadow-soft: 0 2px 12px rgba(26, 26, 26, 0.06);
  --shadow-hover: 0 8px 28px rgba(26, 26, 26, 0.10);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* subtle paper grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence baseFrequency='0.9' numOctaves='2' seed='5'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.1 0 0 0 0 0.1 0 0 0 0.035 0'/></filter><rect width='120' height='120' filter='url(%23n)'/></svg>");
  opacity: 0.5;
  z-index: 1;
  mix-blend-mode: multiply;
}

main, header, footer { position: relative; z-index: 2; }

a { color: var(--ink); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- HEADER ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1400px;
  margin: 0 auto;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.logo .dot { color: var(--accent); font-size: 2rem; line-height: 0; }
.logo .domain { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-faint); margin-left: 6px; letter-spacing: 0.05em; }

.nav-desktop {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-desktop a, .nav-desktop .dropdown-trigger {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  cursor: pointer;
  padding: 6px 0;
  border: none;
  background: none;
  font-family: inherit;
}
.nav-desktop a:hover, .nav-desktop .dropdown-trigger:hover { color: var(--accent); }

.dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 24px;
  min-width: 520px;
  box-shadow: var(--shadow-hover);
  z-index: 200;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.dropdown:hover .dropdown-menu { display: grid; }
.dropdown-menu h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 10px;
}
.dropdown-menu a {
  display: block;
  padding: 5px 0;
  font-size: 0.9rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  padding: 8px 14px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.mobile-nav {
  display: none;
  background: var(--cream);
  border-top: 1px solid var(--line);
  padding: 20px 32px;
  max-height: 70vh;
  overflow-y: auto;
}
.mobile-nav.open { display: block; }
.mobile-nav h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin: 16px 0 8px;
}
.mobile-nav a {
  display: block;
  padding: 7px 0;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--line);
}

/* ---------- HERO ---------- */
.hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-title {
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
}
.hero-title .italic { font-style: italic; color: var(--accent); }
.hero-title .line { display: block; }
.hero-sub {
  margin-top: 24px;
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 540px;
  line-height: 1.55;
}
.hero-meta {
  display: flex;
  gap: 32px;
  margin-top: 36px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.hero-meta span strong { display: block; font-size: 1.8rem; font-family: var(--font-display); color: var(--ink); font-weight: 500; letter-spacing: -0.02em; text-transform: none; margin-bottom: 2px; }

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 420px;
  margin-left: auto;
}
.hero-card {
  position: absolute;
  background: var(--cream);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.hero-card.c1 { top: 0; left: 0; width: 55%; aspect-ratio: 3/4; transform: rotate(-4deg); background: var(--accent); color: var(--cream); }
.hero-card.c2 { top: 15%; right: 0; width: 55%; aspect-ratio: 3/4; transform: rotate(3deg); background: var(--sage); color: var(--cream); }
.hero-card.c3 { bottom: 0; left: 20%; width: 55%; aspect-ratio: 3/4; transform: rotate(-2deg); background: var(--bg-alt); }
.hero-card .big { font-family: var(--font-display); font-size: 2rem; text-transform: none; letter-spacing: -0.02em; margin-top: 10px; color: inherit; }

/* ---------- SECTION INTRO ---------- */
.section-intro {
  padding: 60px 0 40px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.section-intro-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-intro h2 { max-width: 720px; }
.section-intro p { max-width: 440px; color: var(--ink-soft); }

/* ---------- TOOL GRID ---------- */
.tool-category {
  padding: 60px 0;
  border-bottom: 1px solid var(--line);
}
.category-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 36px;
}
.category-number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.category-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
}
.category-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.tool-card {
  background: var(--cream);
  padding: 28px 24px;
  display: block;
  transition: background .25s, transform .25s;
  position: relative;
  min-height: 180px;
}
.tool-card:hover {
  background: var(--bg-alt);
}
.tool-card .icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-style: italic;
  margin-bottom: 18px;
  border-radius: 50%;
}
.tool-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 8px;
  color: var(--ink);
}
.tool-card p {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.5;
}
.tool-card .arrow {
  position: absolute;
  bottom: 20px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: .3s;
}
.tool-card:hover .arrow { opacity: 1; transform: translateX(0); }

/* alternate accent colors for variety */
.tool-grid.cat-organize .tool-card .icon { background: var(--accent); }
.tool-grid.cat-convert .tool-card .icon { background: var(--sage); }
.tool-grid.cat-edit .tool-card .icon { background: var(--gold); }
.tool-grid.cat-security .tool-card .icon { background: #3a4a5a; }
.tool-grid.cat-image .tool-card .icon { background: var(--accent); }
.tool-grid.cat-calc .tool-card .icon { background: var(--sage); }
.tool-grid.cat-misc .tool-card .icon { background: var(--gold); }

/* ---------- TOOL PAGE ---------- */
.tool-page {
  padding: 60px 0 80px;
}
.tool-page-header {
  max-width: 800px;
  margin-bottom: 50px;
}
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--ink-faint); }
.breadcrumb a:hover { color: var(--accent); }
.tool-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 20px;
}
.tool-subtitle {
  font-size: 1.1rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

.tool-workspace {
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-soft);
}

.dropzone {
  border: 2px dashed var(--line);
  padding: 60px 30px;
  text-align: center;
  cursor: pointer;
  transition: all .25s;
  background: var(--bg);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.dropzone .drop-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-style: italic;
}
.dropzone h3 { font-size: 1.5rem; margin-bottom: 8px; }
.dropzone p { color: var(--ink-soft); font-size: 0.95rem; }
.dropzone .small {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--cream);
  padding: 14px 32px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all .2s;
  font-weight: 500;
}
.btn:hover { background: var(--accent); color: var(--cream); transform: translateY(-1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn.secondary:hover { background: var(--ink); color: var(--cream); }
.btn.accent { background: var(--accent); color: var(--cream); }
.btn.accent:hover { background: var(--ink); }

.file-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}
.file-item .name { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 12px; }
.file-item .size { font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-faint); margin-right: 12px; }
.file-item .remove { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 1.2rem; padding: 0 8px; font-family: var(--font-mono); }

.form-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.form-group { flex: 1; min-width: 200px; }
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 16px;
}

.result-box {
  background: var(--sage-soft);
  border: 1px solid var(--sage);
  padding: 24px;
  margin-top: 20px;
  display: none;
}
.result-box.show { display: block; }
.result-box h4 { font-size: 1.2rem; margin-bottom: 10px; color: var(--ink); }
.result-box p { margin-bottom: 14px; color: var(--ink-soft); font-size: 0.95rem; }

.status-msg {
  padding: 12px 16px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  font-size: 0.9rem;
  margin: 16px 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* info panel below tool */
.tool-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 60px;
}
.tool-info h3 { margin-bottom: 16px; font-size: 1.6rem; }
.tool-info p { color: var(--ink-soft); margin-bottom: 12px; }
.tool-info ul { list-style: none; padding: 0; }
.tool-info li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.tool-info li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

/* ---------- LEGAL PAGE ---------- */
.legal-page { padding: 80px 0; }
.legal-container { max-width: 780px; margin: 0 auto; }
.legal-container h1 { margin-bottom: 16px; }
.legal-container .updated { font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-faint); margin-bottom: 40px; letter-spacing: 0.1em; }
.legal-container h2 { font-size: 1.6rem; margin: 40px 0 12px; }
.legal-container h3 { font-size: 1.2rem; margin: 24px 0 10px; }
.legal-container p { margin-bottom: 14px; color: var(--ink-soft); line-height: 1.75; }
.legal-container ul { margin: 14px 0 14px 24px; color: var(--ink-soft); }
.legal-container li { margin-bottom: 6px; line-height: 1.7; }
.legal-container a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
.faq-q {
  font-family: var(--font-display);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q::after {
  content: "+";
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  transition: transform .3s;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s;
  color: var(--ink-soft);
}
.faq-item.open .faq-a {
  max-height: 500px;
  margin-top: 14px;
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--ink);
  color: var(--cream);
  padding: 80px 0 30px;
  margin-top: 100px;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.footer-brand .logo { color: var(--cream); }
.footer-brand .logo .dot { color: var(--accent); }
.footer-tagline {
  margin-top: 20px;
  color: rgba(250, 247, 240, 0.6);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 320px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(250, 247, 240, 0.75); font-size: 0.9rem; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(250, 247, 240, 0.15);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: rgba(250, 247, 240, 0.5);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ---------- CALCULATOR SPECIFIC ---------- */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.calc-output {
  background: var(--ink);
  color: var(--cream);
  padding: 36px;
  min-height: 300px;
  position: relative;
}
.calc-output .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(250, 247, 240, 0.5);
  margin-bottom: 8px;
}
.calc-output .value {
  font-family: var(--font-display);
  font-size: 3.5rem;
  line-height: 1.1;
  color: var(--accent-soft);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}
.calc-output .row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(250, 247, 240, 0.15);
  font-size: 0.92rem;
}
.calc-output .row span:last-child { color: var(--accent-soft); font-family: var(--font-mono); }

/* Basic calculator pad */
.calc-pad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.calc-pad button {
  padding: 22px;
  background: var(--cream);
  border: none;
  font-family: var(--font-display);
  font-size: 1.4rem;
  cursor: pointer;
  transition: background .15s;
}
.calc-pad button:hover { background: var(--bg-alt); }
.calc-pad .op { background: var(--bg-alt); color: var(--accent); }
.calc-pad .eq { background: var(--accent); color: var(--cream); grid-row: span 2; }
.calc-pad .eq:hover { background: var(--ink); }

/* typing test */
.typing-area {
  background: var(--bg);
  padding: 28px;
  min-height: 160px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1.8;
  border: 1px solid var(--line);
  margin-bottom: 20px;
  user-select: none;
}
.typing-area .word { margin-right: 6px; }
.typing-area .char.correct { color: var(--sage); }
.typing-area .char.wrong { color: var(--accent); background: var(--accent-soft); }
.typing-area .char.current { background: var(--ink); color: var(--cream); }
.typing-input {
  width: 100%;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 1rem;
  background: var(--cream);
  border: 1px solid var(--line);
}
.typing-stats { display: flex; gap: 28px; margin-bottom: 16px; font-family: var(--font-mono); font-size: 0.85rem; }
.typing-stats strong { color: var(--accent); font-size: 1.2rem; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 320px; margin: 40px auto 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .tool-info { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .header-inner { padding: 14px 20px; }
  .nav-desktop { display: none; }
  .menu-toggle { display: inline-block; }
  .hero { padding: 50px 0 40px; }
  .tool-workspace { padding: 24px 20px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .dropzone { padding: 40px 20px; }
}

/* animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fadeUp { animation: fadeUp .8s ease-out backwards; }
.fadeUp:nth-child(2) { animation-delay: .1s; }
.fadeUp:nth-child(3) { animation-delay: .2s; }
.fadeUp:nth-child(4) { animation-delay: .3s; }