/* ================================
   Easy Converters – Shared Styles
   File: /assets/site.css
   Purpose: site-wide layout, components, and FAQ styling
   NOTE: This file complements Tailwind. Keep utility classes in HTML as you like,
         but all custom CSS lives here.
=================================== */

/* ---- Root / defaults ---- */
:root { --content-max: 1200px; }

/* ---- Page frame ---- */
html, body { height: 100%; }
body{
  display:flex;
  flex-direction:column;
  min-height:100vh;
  background:#f3f4f6;
  padding:1rem;
  max-width:100%;
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

/* ---- Two-column grid with footer row ----
   IMPORTANT: We intentionally keep the class ".container" for compatibility
   with your existing pages. Tailwind’s .container imposes a max-width; we
   override that here so our grid can be truly fluid. */
.container{
  flex:1;
  display:grid;
  grid-template-columns:300px minmax(0, 1fr); /* nav | main */
  grid-template-rows:1fr auto;                /* content | footer */
  gap:1rem;
  width:100%;
  min-height:calc(100vh - 2rem);

  /* Override Tailwind's container clamp */
  max-width:none !important;
  margin-left:0 !important;
  margin-right:0 !important;
}
@supports(height:100dvh){
  .container{ min-height:calc(100dvh - 2rem); }
}

/* ---- Columns ---- */
nav{
  grid-column:1; grid-row:1;
  width:300px;
  background:#fff;
  box-shadow:0 4px 6px -1px rgba(0,0,0,.1);
  border-radius:.5rem;
  padding:1rem;
}
main{
  grid-column:2; grid-row:1;
  background:#fff;
  box-shadow:0 4px 6px -1px rgba(0,0,0,.1);
  border-radius:.5rem;
  padding:1rem;
  min-width:0;
  display:flex;
  flex-direction:column;

  /* Make sure the white card spans the whole track */
  width:100% !important;
  max-width:none !important;
  margin-left:0 !important;
  margin-right:0 !important;
}

/* ---- Footer (inside grid, spans both columns) ---- */
footer{
  grid-column:1 / -1; grid-row:2;
  background:#fff;
  box-shadow:0 4px 6px -1px rgba(0,0,0,.1);
  border-radius:.5rem;
  padding:.75rem 1rem;
  text-align:center;
  color:#4b5563;
  font-size:.875rem;
}
footer a{ color:#2563eb; text-decoration:none; }
footer a:hover{ text-decoration:underline; }

/* ---- Visibility helpers (align to Tailwind md=768px) ---- */
.desktop-only{ display:none; }
.mobile-only { display:inline-flex; }
@media (min-width:768px){ .desktop-only{display:block} .mobile-only{display:none} }
@media (min-width:768px){ .back-button{ display:none !important; } }
@media (max-width:767.98px){ nav .menu-button{ display:none !important; } }

/* ---- Buttons / controls ---- */
.back-button{
  background:#3b82f6; color:#fff;
  padding:8px 12px; border-radius:.5rem;
  font-size:.9rem; display:inline-flex; align-items:center; gap:6px;
}
.menu-button{
  transition:background-color .2s ease, color .2s ease;
  width:100%; max-width:200px; height:60px;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; text-align:center; line-height:1.5;
  margin:.75rem auto;
  background:#bbf7d0; color:#1e40af; border-radius:.5rem;
}
.menu-button:hover{ background:#3b82f6; color:#fff; }

/* ---- Calculator scaffolding (shared) ---- */
.calculator-grid{ max-width:640px; }
.input-row{
  display:grid;
  grid-template-columns:160px 1fr; /* label | control */
  gap:.75rem;
  align-items:center;
}
.input-row + .input-row{ margin-top:.75rem; }
.inline-note{ font-size:.8125rem; color:#6b7280; }

/* ---- Unit buttons (if a tool uses them) ---- */
.unit-grid{
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:.75rem; margin:1rem 0 1.5rem 0;
}
.unit-button{
  padding:.5rem; border:1px solid #e5e7eb;
  text-align:center; border-radius:.25rem;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  font-size:.9rem; transition:all .2s ease; background:#f3f4f6; cursor:pointer;
}
.unit-button:hover{ background:#3b82f6; color:#fff; }
.unit-button.selected{ background:#2563eb; color:#fff; font-weight:600; }
.unit-button .label{ display:flex; align-items:center; gap:6px; }
.unit-button .value{ margin-top:4px; font-size:.85rem; }

/* ---- Ads ---- */
.ad-card{
  background:#f9fafb; border:1px solid #e5e7eb;
  border-radius:.5rem; padding:8px;
  display:flex; align-items:center; justify-content:center; width:100%;
}
.ad-top{ margin-top:.25rem; margin-bottom:.5rem; } /* mobile top ad spacing */

@media (min-width:768px){
  main .ad-card:not(.ad-lb){
    max-width: var(--content-max);
    margin-left:auto; margin-right:auto;
  }
}
main .ad-card.ad-lb{ width:100%; min-height:90px; margin-left:auto; margin-right:auto; }
@media (min-width:1200px){ main .ad-card.ad-lb{ max-width:970px; } }
@media (min-width:992px) and (max-width:1199.98px){ main .ad-card.ad-lb{ max-width:728px; } }
@media (max-width:991.98px){ main .ad-card.ad-lb{ max-width:100%; min-height:100px; } }
main .ad-card.ad-lb > ins.adsbygoogle{ display:block !important; width:100% !important; height:100% !important; }
nav .ad-card{ max-width:300px; margin-left:auto; margin-right:auto; }

/* ---- FAQ (BMR style) ---- */
.faq { margin-top:1.5rem; }
.faq h2{ font-size:1.125rem; font-weight:700; color:#1f2937; }
.faq-list{ margin-top:.5rem; display:flex; flex-direction:column; gap:.5rem; }

.faq details summary{
  cursor:pointer;
  padding:.5rem .75rem;
  background:#f9fafb;
  border:1px solid #e5e7eb;
  border-radius:.5rem;
  font-weight:600;
  color:#1f2937;
}
.faq details > div{
  padding:.75rem;
  color:#374151;
  font-size:.875rem;
}

/* ---- Results box ---- */
.results{
  display:grid; gap:.5rem; margin-top:1rem;
}
.results .result-card{
  background:#f9fafb; border:1px solid #e5e7eb; border-radius:.5rem; padding:.75rem;
}
.results .label{ color:#4b5563; font-size:.875rem; }
.results .value{ font-weight:700; color:#111827; font-size:1.25rem; }

/* ---- Mobile layout (stack columns) ---- */
@media (max-width:767.98px){
  .container{
    grid-template-columns:1fr;
    grid-template-rows:auto 1fr auto; /* nav, main, footer */
  }
  nav, main, footer{ grid-column:1; width:100%; }
  .unit-grid{ grid-template-columns:repeat(3,1fr); } /* keep 3 cols on mobile */
}

/* ================================
   BMI components (migrated from inline styles)
   ================================ */

/* Input group used on BMI (label | control) */
.input-container{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:.75rem;
  align-items:center;
}
@media (max-width:767.98px){
  .input-container{ grid-template-columns:1fr; }
}

/* Segmented control (Metric/Imperial) */
.seg{
  display:inline-flex;
  border:1px solid #d1d5db;
  border-radius:.5rem;
  overflow:hidden;
}
.seg button{
  padding:.5rem .75rem;
  font-weight:600;
}
.seg button.active{
  background:#2563eb;
  color:#fff;
}

/* Card blocks used in BMI results */
.card{
  border:1px solid #e5e7eb;
  background:#f9fafb;
  border-radius:.5rem;
  padding:12px;
}

/* === BMI scale: 4-segment color band + marker === */
/* optional: set the max BMI once */
:root { --bmi-max: 40; }

.scale{
  position:relative;
  height:10px;
  border-radius:9999px;
  overflow:hidden;
  background: linear-gradient(
    90deg,
    #93c5fd calc(18.5/var(--bmi-max) * 100%),
    #86efac calc(18.5/var(--bmi-max) * 100%),
    #86efac calc(25/var(--bmi-max) * 100%),
    #fde68a calc(25/var(--bmi-max) * 100%),
    #fde68a calc(30/var(--bmi-max) * 100%),
    #fca5a5 calc(30/var(--bmi-max) * 100%)
  );
}

.marker{
  position:absolute;
  top:-4px;
  left:0;
  width:2px;
  height:18px;
  background:#111827;
  border-radius:1px;
}

/* Ensure hidden rows actually hide (overrides our grid display) */
.input-row.hidden,
.input-container.hidden {
  display: none !important;
}

/* ================================
   Currency components
   ================================ */

/* 3-col grid for currency buttons (desktop & mobile) */
.currency-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:.75rem;
  margin:1rem 0 1.5rem 0;
}

/* Currency button cards (mirror unit-button) */
.currency-button{
  padding:.5rem;
  border:1px solid #e5e7eb;
  text-align:center;
  border-radius:.25rem;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  font-size:.9rem;
  transition:all .2s ease;
  background:#f3f4f6;
  cursor:pointer;
}
.currency-button:hover{ background:#3b82f6; color:#fff; }
.currency-button.selected{ background:#2563eb; color:#fff; font-weight:600; }
.currency-button .label{ display:flex; align-items:center; gap:6px; }
.currency-button .value{ margin-top:4px; font-size:.85rem; }

/* Small flag icons */
.flag{
  width:20px; height:15px;
  margin-right:6px;
  border-radius:2px;
  object-fit:cover;
  vertical-align:-2px;
}

/* Active amount row (uses existing .input-container; keep narrow variant if needed) */
#active-input.input-container{ grid-template-columns:90px 1fr; }
@media (max-width:767.98px){
  #active-input.input-container{ grid-template-columns:1fr; }
}

/* ===== Primary Action Button ===== */
.btn {
  -webkit-appearance: none;
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;

  padding: .55rem 1rem;          /* comfortable hit area */
  border: 0;
  border-radius: .5rem;           /* 8px */
  background: #2563eb;           /* blue-600 */
  color: #fff;
  font-weight: 600;
  line-height: 1.2;
  font-size: 0.95rem;
  cursor: pointer;

  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  transition: background-color .15s ease, box-shadow .15s ease, transform .02s ease;
}
.btn:hover { background: #1d4ed8; }        /* blue-700 */
.btn:active { transform: translateY(0.5px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px rgba(37,99,235,.35);  /* accessible focus ring */
}