/* HandwrittenNotes.org
   single stylesheet, grey palette, mobile-first */

:root {
  --bg:        #f0f2f5;
  --card:      #ffffff;
  --border:    #dddfe2;
  --border-dk: #ced0d4;
  --text:      #1c1e21;
  --text-mid:  #65676b;
  --text-low:  #8a8d91;
  --dark:      #050505;
  --btn-bg:    #1c1e21;
  --btn-bg-hv: #050505;
  --hover:     #f2f3f5;
  --input-bg:  #f0f2f5;
  --danger:    #d93025;
  --amber:     #b06000;
  --radius:    8px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.08);
  --shadow:    0 2px 4px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}

/* aliases for legacy names in the tool markup */
:root {
  --page-bg: var(--bg);
  --white: var(--card);
  --card-bg: var(--card);
  --text-main: var(--text);
  --text-muted: var(--text-mid);
  --text-soft: var(--text-low);
  --green: var(--btn-bg);
  --green-dk: var(--btn-bg-hv);
  --green-bright: var(--btn-bg);
  --green-brighthv: var(--btn-bg-hv);
  --green-lt: var(--hover);
  --green-soft: var(--hover);
  --brand: var(--btn-bg);
  --brand-dk: var(--btn-bg-hv);
  --brand-bright: var(--text-mid);
  --brand-lt: var(--hover);
  --brand-soft: var(--hover);
  --surface: var(--input-bg);
  --active-bg: var(--border);
  --red: var(--danger);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, canvas, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 12px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.2px;
}
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }
p { margin: 0 0 12px; overflow-wrap: break-word; }
p:last-child { margin-bottom: 0; }

/* HEADER */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.hdr-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo:hover { text-decoration: none; }
.logo-nib {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--btn-bg);
  color: #fff;
  border-radius: 8px;
  font-size: 16px;
}
.logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}
.logo-text .logo-dot { color: var(--text-mid); font-weight: 500; }

.main-nav {
  display: flex;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.main-nav a {
  padding: 8px 12px;
  color: var(--text-mid);
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
}
.main-nav a:hover {
  background: var(--hover);
  color: var(--text);
  text-decoration: none;
}
.main-nav a.active {
  background: var(--hover);
  color: var(--text);
}

.hdr-right { display: flex; align-items: center; gap: 8px; }
.hdr-cta {
  padding: 7px 14px;
  background: var(--btn-bg);
  color: #fff;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.hdr-cta:hover { background: var(--btn-bg-hv); text-decoration: none; }

.nav-burger { display: none; }

@media (max-width: 860px) {
  .main-nav, .hdr-cta { display: none; }
  .nav-burger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 22px;
    height: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
  }
  .nav-burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
  }
}

.mobile-nav {
  display: none;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px 12px;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 10px 4px;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--text); text-decoration: none; }

/* HERO */
.hwn-hero {
  background: var(--card);
  padding: 44px 20px 36px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.hwn-hero h1 {
  font-size: 32px;
  margin: 0 auto 12px;
  max-width: 720px;
  letter-spacing: -0.5px;
}
.hwn-hero .lead {
  font-size: 16px;
  color: var(--text-mid);
  max-width: 580px;
  margin: 0 auto 20px;
  line-height: 1.6;
}
.hwn-hero .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  font-size: 13px;
  color: var(--text-low);
  font-weight: 500;
}
.hwn-hero .hero-meta span::before {
  content: "\2713";
  color: var(--text);
  font-weight: 700;
  margin-right: 4px;
}

/* SECTION WRAPPERS */
.hwn-section {
  padding: 44px 20px;
  border-bottom: 1px solid var(--border);
}
.hwn-section-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.hwn-section-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 6px;
}
.hwn-section-lead {
  font-size: 14.5px;
  color: var(--text-mid);
  margin: 0 0 24px;
  max-width: 640px;
  line-height: 1.6;
}

/* TOOL CARDS GRID (homepage) */
.hwn-tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.hwn-tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  color: inherit;
  text-decoration: none;
  display: block;
  transition: box-shadow 0.15s ease;
}
.hwn-tool-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-dk);
  text-decoration: none;
}
.hwn-tool-card h3 {
  font-size: 16px;
  margin: 0 0 6px;
}
.hwn-tool-card p {
  font-size: 13.5px;
  color: var(--text-mid);
  margin: 0 0 10px;
  line-height: 1.55;
}
.hwn-tool-arrow {
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}
.hwn-tool-arrow::after { content: " \2192"; margin-left: 2px; }

/* STEPS */
.hwn-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.hwn-step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.hwn-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--btn-bg);
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}
.hwn-step h4 {
  font-size: 15px;
  margin: 0 0 6px;
}
.hwn-step p {
  font-size: 13.5px;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.55;
}

/* FEATURE CARD (generic) */
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.feature-card h4 {
  font-size: 15px;
  margin: 0 0 6px;
}
.feature-card p {
  font-size: 13.5px;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.55;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 820px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-q {
  padding: 14px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q .arr {
  font-size: 10px;
  color: var(--text-low);
  transition: transform 0.15s;
}
.faq-item.open .arr { transform: rotate(180deg); }
.faq-a {
  padding: 0 18px 14px;
  font-size: 13.5px;
  color: var(--text-mid);
  line-height: 1.6;
  display: none;
}
.faq-item.open .faq-a { display: block; }

/* BUTTONS */
.btn-primary, .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--btn-bg);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}
.btn-primary:hover, .btn-accent:hover {
  background: var(--btn-bg-hv);
  color: #fff;
  text-decoration: none;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}
.btn-ghost:hover {
  background: var(--hover);
  border-color: var(--border-dk);
  color: var(--text);
  text-decoration: none;
}

/* TOOL PAGE */
.tool-page {
  max-width: 1180px;
  margin: 16px auto;
  padding: 0 16px;
}
.tool-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.tool-bar h1, .tool-h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
}
.tbar-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.tool-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 12px;
  align-items: start;
}
.ctrl-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ctrl-panel > div { min-width: 0; }
.canvas-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.ctrl-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-mid);
  margin-bottom: 8px;
}

.tool-textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
  font-family: inherit;
  resize: vertical;
  outline: none;
  line-height: 1.5;
}
.tool-textarea:focus { border-color: var(--text); }

input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--card);
  color: var(--text);
  font-family: inherit;
  outline: none;
}
input[type="text"]:focus, input[type="email"]:focus, input[type="password"]:focus {
  border-color: var(--text);
}

/* PAGE COUNTER */
.page-counter {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-mid);
}
.page-counter button {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius-sm);
  font-size: 15px;
  cursor: pointer;
  color: var(--text);
}
.page-counter button:disabled { opacity: 0.4; cursor: not-allowed; }

/* PAPER FRAME */
.paper-frame {
  background: var(--input-bg);
  border-radius: var(--radius);
  padding: 12px;
  overflow-x: auto;
  display: flex;
  justify-content: center;
}
.paper-frame canvas {
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow-md);
  background: #fff;
}

/* SLIDERS */
.sliders { display: flex; flex-direction: column; gap: 10px; }
.sliders .sl-top {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-mid);
  margin-bottom: 4px;
}
.sliders .slv { font-weight: 600; color: var(--text); }
.sliders input[type="range"] {
  width: 100%;
  accent-color: var(--btn-bg);
}

/* FONT / PAPER / INK GRIDS */
.font-list { display: flex; flex-direction: column; gap: 4px; max-height: 300px; overflow-y: auto; padding-right: 4px; }
.font-list .fr {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  cursor: pointer;
  min-width: 0;
}
.font-list .fr:hover { background: var(--hover); }
.font-list .fr.on { border-color: var(--text); background: var(--hover); }
.font-list .fr-sample {
  font-size: 15px;
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  color: var(--text);
}
.font-list .fr-info { flex: 1; min-width: 0; }
.font-list .fr-name { font-size: 13px; font-weight: 600; color: var(--text); }
.font-list .fr-desc { font-size: 11.5px; color: var(--text-low); }

.paper-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.paper-grid .p {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  text-align: center;
  background: var(--card);
}
.paper-grid .p:hover { background: var(--hover); }
.paper-grid .p.on { border-color: var(--text); background: var(--hover); }
.paper-grid .p .p-name { font-size: 11px; margin-top: 4px; color: var(--text-mid); font-weight: 500; }
.paper-grid .p canvas { border-radius: 3px; }

.ink-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ink-row .ink-sw {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.1s;
}
.ink-row .ink-sw:hover { transform: scale(1.1); }
.ink-row .ink-sw.on { border-color: var(--text); }

/* Toggle labels */
.gp-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  cursor: pointer;
}

/* FORM FIELDS on tool pages */
.form-field { margin-bottom: 10px; }

/* ABOUT PAGE */
.about-wrap {
  max-width: 780px;
  margin: 28px auto;
  padding: 0 20px;
}
.about-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 12px;
}
.about-card h2 {
  font-size: 18px;
  margin: 0 0 12px;
}
.about-card p {
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.65;
  margin: 0 0 10px;
}
.about-card p:last-child { margin-bottom: 0; }
.about-card p strong { color: var(--text); font-weight: 600; }

/* FOOTER */
.site-footer {
  background: #1c1e21;
  color: #b0b3b8;
  padding: 40px 20px 24px;
  margin-top: 32px;
}
.site-footer .ft-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.site-footer .ft-cols {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}
.site-footer .ft-col strong {
  display: block;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.site-footer .ft-col a {
  display: block;
  color: #b0b3b8;
  font-size: 13.5px;
  padding: 4px 0;
  text-decoration: none;
  line-height: 1.5;
}
.site-footer .ft-col a:hover { color: #fff; text-decoration: none; }
.site-footer .ft-col p {
  color: #b0b3b8;
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}
.site-footer .ft-bottom {
  border-top: 1px solid #3a3d42;
  padding-top: 18px;
  font-size: 12.5px;
  color: #8a8d91;
  text-align: center;
}

/* MOBILE */
@media (max-width: 860px) {
  .tool-layout { grid-template-columns: 1fr; }
  .hwn-steps { grid-template-columns: repeat(2, 1fr); }
  .site-footer .ft-cols { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 640px) {
  h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  .hwn-hero { padding: 32px 16px 26px; }
  .hwn-hero h1 { font-size: 24px; }
  .hwn-hero .lead { font-size: 14.5px; }
  .hwn-hero .hero-meta { gap: 12px; font-size: 12px; }
  .hwn-section { padding: 32px 16px; }
  .hwn-section-title { font-size: 19px; }
  .tool-page { padding: 0 12px; margin: 12px auto; }
  .tool-bar { padding: 10px 12px; }
  .tool-bar h1, .tool-h2 { font-size: 16px; width: 100%; }
  .ctrl-panel { padding: 14px; }
  .canvas-panel { padding: 12px; }
  .paper-frame { padding: 8px; }
  .about-wrap { padding: 0 14px; margin: 20px auto; }
  .about-card { padding: 18px; }
  .hdr-inner { padding: 0 14px; }
}

@media (max-width: 500px) {
  .hwn-steps { grid-template-columns: 1fr; }
  .site-footer .ft-cols { grid-template-columns: 1fr; gap: 20px; }
  .paper-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ARABIC text direction helpers */
[dir="rtl"] { text-align: right; }

/* Small utilities used inline */
.text-muted { color: var(--text-mid); }
.text-soft { color: var(--text-low); }
.hint { font-size: 12px; color: var(--text-low); }

/* fr-meta wrapper inside font-list rows */
.fr-meta { flex: 1; min-width: 0; }

/* ink-dot swatches on Arabic/Chinese tools */
.ink-dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  display: inline-block;
}
.ink-dot:hover { transform: scale(1.08); }
.ink-dot.on { border-color: var(--text); }

/* fr-check tick mark for selected font */
.fr-check {
  width: 16px;
  height: 16px;
  color: var(--text);
  flex-shrink: 0;
  display: none;
}
.font-list .fr.on .fr-check { display: inline-block; }

/* Guide line options on practice sheet tool */
.guide-line-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.guide-opt {
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  cursor: pointer;
  text-align: center;
  font-size: 12px;
  color: var(--text-mid);
}
.guide-opt:hover { background: var(--hover); }
.guide-opt.on { border-color: var(--text); background: var(--hover); color: var(--text); font-weight: 600; }

/* OCR loading indicator */
.ocr-loading {
  padding: 20px;
  text-align: center;
  color: var(--text-mid);
  font-size: 14px;
}

/* OCR layout */
.h2t-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 860px) {
  .h2t-layout { grid-template-columns: 1fr; }
}