/* =========================================================
   Bytewright tools — shared stylesheet
   Theme: technical "blueprint" — pale grid ground, cobalt ink
   ========================================================= */

:root {
  color-schema: light;
  --grid-line: rgba(16, 24, 40, 0.05);
  --surface: #FFFFFF;
  --border: #D8DFEA;
  --border-strong: var(--dark);
  --ink: #101828;
  --ink-muted: #5B6472;
  --ink-faint: #8891A0;
  --accent: var(--primary);
  --accent-ink: #14328F;
  --accent-soft: #E4EBFC;
  --success: #1E8A5F;
  --error: #C4432E;
  --error-soft: #FBEAE6;
  --radius: 4px;
  --shadow: none;
  --transition: 140ms ease;
  --support-card: var(--dark);
}

html[data-theme="dark"]{
--grid-line: rgba(143, 157, 184, 0.05);
--ink: var(--text);
--support-card: var(--ink-muted);
}

.faq-contact-card {
  background: var(--support-card);
/* color: var(--text); */
}

.faq-search input 
{
  background-color: var(--bg);
}


.faq-cat-btn.active {
background: var(--support-card);
}

.faq-cat-btn:hover {
background: var(--support-card);
}

.page-hero-title {
    background: linear-gradient(to right, #a3c43a, #a866ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
    font-family: 'Bricolage Grotesque', 'DM Sans', sans-serif;
    font-size: clamp(2.2rem, 5.5vw, 3.75rem);
    line-height: 1.12;
    letter-spacing: -0.01em;
    margin-bottom: 0.9rem;

}

/* @media (prefers-reduced-motion: reduce) {
  :root { --transition: 0ms; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
} */

* { box-sizing: border-box; }

/* html { scroll-behavior: smooth; } */

.tool-section-main {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  /* font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55; */
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- Layout ---------- */

.tool-intro h1 {
  font-weight: 650;
  font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.4rem);
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.tool-intro p {
  color: var(--ink-muted);
  max-width: 62ch;
  margin-bottom: 0;
}

/* ---------- Panels ---------- */

.panel {
  /* background: var(--surface); */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border);
}

.panel-label {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--ink);
}

.panel-hint {
  font-size: 0.8rem;
  color: var(--ink-faint);
  text-align: right;
}

.panel-body {
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  flex: 1;
}

/* ---------- Dropzone / textarea (decode input) ---------- */

.dropzone {
  position: relative;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  transition: border-color var(--transition), background-color var(--transition);
}

.dropzone.is-dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.base64-textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: none;
  background: transparent;
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--ink);
}

.base64-textarea:focus {
  outline: none;
}

.dropzone-overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: var(--radius);
  pointer-events: none;
}

.dropzone.is-dragover .dropzone-overlay { display: flex; }

/* ---------- File dropzone (encode input) ---------- */

.filedrop {
  position: relative;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
}

.filedrop:hover,
.filedrop:focus-visible {
  border-color: var(--accent);
}

.filedrop.is-dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.filedrop-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.filedrop-sub {
  font-size: 0.82rem;
  color: var(--ink-faint);
}

.filedrop-preview {
  max-width: 100%;
  max-height: 160px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ---------- Buttons ---------- */

.input-actions,
.output-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--ink);
}

.btn-ghost:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent-ink);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  cursor: pointer;
  padding: 0;
}

.btn-link:hover { text-decoration: underline; }

/* ---------- Alerts ---------- */

.alert-line {
  border: 1px solid var(--error);
  background: var(--error-soft);
  color: var(--error);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
}

/* ---------- Preview frame (decode output) ---------- */

.preview-frame {
  position: relative;
  min-height: 240px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  /* background:
    linear-gradient(45deg, #f3f5f9 25%, transparent 25%) -8px 0/16px 16px,
    linear-gradient(-45deg, #f3f5f9 25%, transparent 25%) -8px 0/16px 16px,
    linear-gradient(45deg, transparent 75%, #f3f5f9 75%) -8px 0/16px 16px,
    linear-gradient(-45deg, transparent 75%, #f3f5f9 75%) -8px 0/16px 16px,
    #ffffff; */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  overflow: hidden;
}

.preview-frame img {
  max-width: 100%;
  max-height: 320px;
  border-radius: 2px;
}

.preview-empty {
  color: var(--ink-faint);
  font-size: 0.85rem;
  text-align: center;
  margin: 0;
  max-width: 30ch;
}

.bracket {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent);
  opacity: 0.55;
}

.bracket-tl { top: 8px; left: 8px; border-right: none; border-bottom: none; }
.bracket-tr { top: 8px; right: 8px; border-left: none; border-bottom: none; }
.bracket-bl { bottom: 8px; left: 8px; border-right: none; border-top: none; }
.bracket-br { bottom: 8px; right: 8px; border-left: none; border-top: none; }

/* ---------- Meta grid ---------- */

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem 1rem;
  margin: 0;
}

.meta-grid dt {
  font-size: 0.72rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  margin-bottom: 0.15rem;
}

.meta-grid dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- Encode output text ---------- */

.encode-output {
  width: 100%;
  min-height: 220px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink);
  /* background: #fbfcfe; */
  resize: vertical;
}

.encode-output:focus { outline: none; border-color: var(--accent); }

.output-format-toggle {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  align-self: flex-start;
}

.output-format-toggle button {
  border: none;
  background: var(--surface);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}

.output-format-toggle button + button { border-left: 1px solid var(--border-strong); }

.output-format-toggle button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 600;
}

/* ---------- Format strip ---------- */

.format-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.75rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
}

.format-strip .fmt-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-right: 0.4rem;
}

.format-chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.2rem 0.55rem;
  background: var(--surface);
}

/* ---------- History ---------- */

.history-section {
  border-top: 1px solid var(--border);
}

.history-row {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.history-item {
  flex: none;
  width: 84px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.4rem;
  text-align: center;
  cursor: default;
}

.history-item img {
  width: 100%;
  height: 48px;
  object-fit: contain;
  margin-bottom: 0.3rem;
}

.history-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--ink-faint);
}

/* ---------- Responsive ---------- */

@media (max-width: 991.98px) {
  .badge-local { display: none; }
}

@media (max-width: 575.98px) {
  .panel-header { flex-direction: column; align-items: flex-start; gap: 0.2rem; }
  .panel-hint { text-align: left; }
  .meta-grid { grid-template-columns: 1fr 1fr; }
}


/* ================================
   Section Heading
================================ */

.section-heading {
    max-width: 700px;

    margin: 100px auto 45px;
}

.section-tag {
    display: inline-block;

    margin-bottom: 12px;

    color: var(--primary);

    font-size: 12px;
    font-weight: 750;
    letter-spacing: 1px;
}

.section-heading h2 {
    margin-bottom: 12px;

    font-size: clamp(26px, 4vw, 34px);
    font-weight: 750;
    letter-spacing: -0.8px;
}

.section-heading p {
    margin: 0;

    color: var(--muted);
}


/* ================================
   Feature Cards
================================ */

.feature-card {
    height: 100%;

    padding: 26px;

    border: 1px solid var(--border);
    border-radius: 16px;

    background: var(--white);

    box-shadow: var(--shadow-sm);

    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;

    display: flex;
    align-items: center;
    justify-content: center;

    margin-bottom: 20px;

    border-radius: 12px;

    background: rgba(108, 92, 231, 0.10);

    color: var(--primary);

    font-size: 22px;
}

.feature-card h4 {
    margin-bottom: 10px;

    font-size: 17px;
    font-weight: 700;
}

.feature-card p {
    margin: 0;

    color: var(--muted);

    font-size: 14px;
    line-height: 1.7;
}


/* ================================
   How To Section
================================ */

.how-section {
    padding-bottom: 20px;
}

.steps-container {
    display: flex;
    align-items: flex-start;

    gap: 15px;

    max-width: 1100px;

    margin: 0 auto;
    margin-bottom: 50px;
}

.step {
    flex: 1;

    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;

    display: flex;
    align-items: center;
    justify-content: center;

    margin: 0 auto 18px;

    border-radius: 50%;

    background: var(--primary);

    color: var(--dark);

    font-weight: 750;
}

.step h4 {
    margin-bottom: 8px;

    font-size: 16px;
    font-weight: 700;
}

.step p {
    margin: 0;

    color: var(--muted);

    font-size: 13px;
    line-height: 1.6;
}

.step-line {
    width: 70px;
    height: 1px;

    margin-top: 24px;

    background: var(--primary);
}