/* ============================================================================
   PROSPERIFY — SHARED DESIGN SYSTEM
   ----------------------------------------------------------------------------
   One stylesheet, linked by every page. Change a colour or font here and it
   updates everywhere. New tools inherit the whole look for free.
   ============================================================================ */

/* ── DESIGN TOKENS ────────────────────────────────────────────────────────── */
:root {
  --bg:#FDFAF4; --bg-alt:#F5F0E8; --bg-card:#FFFFFF;
  --ink:#1C1917; --ink-mid:rgba(28,25,23,0.52); --ink-soft:rgba(28,25,23,0.36); --ink-faint:rgba(28,25,23,0.09);
  --red:#DC321F; --red-soft:rgba(220,50,31,0.07); --red-mid:rgba(220,50,31,0.18);
  --green:#1E6B3C; --amber:#A0620A; --blue:#4A6FA0;
  --border:rgba(28,25,23,0.09);
  --shadow-sm:0 2px 12px rgba(28,25,23,0.06);
  --shadow-md:0 8px 32px rgba(28,25,23,0.09);
  --shadow-lg:0 20px 56px rgba(28,25,23,0.13);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);
}
[data-theme="dark"] {
  --bg:#1C1917; --bg-alt:#242019; --bg-card:#2B2520;
  --ink:#FFF8EB; --ink-mid:rgba(255,248,235,0.52); --ink-soft:rgba(255,248,235,0.32); --ink-faint:rgba(255,248,235,0.08);
  --border:rgba(255,248,235,0.08);
  --shadow-sm:0 2px 12px rgba(0,0,0,0.3);
  --shadow-md:0 8px 32px rgba(0,0,0,0.35);
  --shadow-lg:0 20px 56px rgba(0,0,0,0.5);
}

/* ── RESET ────────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
/* Respect users who ask their device to reduce motion. */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}
/* Visible keyboard focus ring everywhere (mouse clicks stay clean via :focus-visible). */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--red); outline-offset:2px;
}
body{
  font-family:'Instrument Sans',sans-serif;
  background:var(--bg); color:var(--ink);
  min-height:100vh; line-height:1.65;
  transition:background .3s var(--ease),color .3s var(--ease);
}

/* ── SHARED NAV + TOOLS DROPDOWN ──────────────────────────────────────────── */
nav#prosperify-nav{
  position:sticky; top:0; z-index:300;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 40px; height:60px;
  background:rgba(253,250,244,0.92);
  backdrop-filter:blur(16px) saturate(1.4); -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--border);
  transition:background .3s,border-color .3s;
}
[data-theme="dark"] nav#prosperify-nav{background:rgba(28,25,23,0.92)}
nav#prosperify-nav .nav-logo{
  font-family:'Playfair Display',serif; font-weight:900; font-size:22px;
  color:var(--red); text-decoration:none; letter-spacing:-0.5px; flex-shrink:0;
}
nav#prosperify-nav .nav-right{display:flex; align-items:center; gap:14px}

.tools-dd{position:relative}
.tools-dd-btn{
  display:inline-flex; align-items:center; gap:6px;
  font-family:'Instrument Sans',sans-serif; font-size:14px; font-weight:500;
  color:var(--ink-mid); background:none; border:1px solid var(--border);
  border-radius:8px; padding:7px 14px; cursor:pointer; transition:all .2s;
}
.tools-dd-btn:hover{color:var(--ink); border-color:var(--ink-mid)}
.dd-caret{font-size:10px; transition:transform .25s var(--ease)}
.tools-dd.open .dd-caret{transform:rotate(180deg)}
.tools-dd.open .tools-dd-btn{color:var(--ink); border-color:var(--red)}

.tools-dd-menu{
  position:absolute; top:calc(100% + 8px); right:0;
  width:330px; max-height:74vh; overflow-y:auto;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:14px; box-shadow:var(--shadow-lg);
  padding:8px; opacity:0; visibility:hidden;
  transform:translateY(-8px) scale(0.98); transform-origin:top right;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.tools-dd.open .tools-dd-menu{opacity:1; visibility:visible; transform:translateY(0) scale(1)}
.pd-group-label{
  font-size:10px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-soft); font-weight:700; padding:8px 12px 5px;
}
.pd-item{
  display:flex; align-items:center; gap:11px;
  padding:9px 12px; border-radius:9px; text-decoration:none;
  color:var(--ink); transition:background .15s;
}
.pd-item:hover{background:var(--bg-alt)}
.pd-item.current{background:var(--red-soft)}
.pd-item.current .pd-name{color:var(--red); font-weight:600}
.pd-item[aria-disabled="true"]{opacity:.5}
.pd-ico{font-size:17px; width:22px; text-align:center; flex-shrink:0}
.pd-name{font-size:13.5px; font-weight:500; flex:1; line-height:1.3}
.pd-soon,.pd-free{
  font-size:9px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  padding:2px 7px; border-radius:10px; flex-shrink:0;
}
.pd-soon{background:var(--bg-alt); color:var(--ink-soft); border:1px solid var(--border)}
.pd-free{background:rgba(30,107,60,.09); color:var(--green); border:1px solid rgba(30,107,60,.18)}
.pd-divider{height:1px; background:var(--border); margin:6px 8px}
.pd-all .pd-name{color:var(--ink-mid); font-weight:600}

.theme-btn{
  background:none; border:1px solid var(--border); border-radius:20px;
  padding:8px 14px; min-height:40px; font-size:12px; color:var(--ink-mid);
  cursor:pointer; transition:all .2s; flex-shrink:0;
}
.theme-btn:hover{border-color:var(--red); color:var(--red)}

/* small tier pill some tool headers use */
.tier-badge{
  background:var(--red-soft); color:var(--red);
  border:1px solid var(--red-mid); border-radius:20px;
  padding:4px 10px; font-size:11px; font-weight:600;
  letter-spacing:.04em; text-transform:uppercase;
}
.tier-badge.free{background:rgba(30,107,60,.08); color:var(--green); border-color:rgba(30,107,60,.2)}
.tier-badge.pro{background:var(--bg-alt); color:var(--ink-mid); border-color:var(--border)}

/* ── PAGE HEADER (tool pages) ─────────────────────────────────────────────── */
.page-header{max-width:780px; margin:0 auto; padding:52px 24px 36px; text-align:center}
.page-eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--red); margin-bottom:16px; font-weight:600;
}
.page-eyebrow::before,.page-eyebrow::after{content:''; display:block; width:24px; height:1px; background:var(--red)}
.page-header h1{
  font-family:'Playfair Display',serif; font-size:clamp(32px,5vw,52px);
  font-weight:900; letter-spacing:-1.5px; line-height:1.06; margin-bottom:14px;
}
.page-header h1 em{font-style:italic; color:var(--red)}
.page-sub{font-size:16px; color:var(--ink-mid); line-height:1.65; max-width:520px; margin:0 auto}

/* ── SHARED CARD / FIELDS / BUTTONS ───────────────────────────────────────── */
.card{
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:16px; padding:28px; margin-bottom:16px; box-shadow:var(--shadow-sm);
}
.card-label{
  font-size:10px; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-soft); font-weight:600;
  margin-bottom:20px; padding-bottom:14px; border-bottom:1px solid var(--border);
}

/* ── SHARED FOOTER ────────────────────────────────────────────────────────── */
footer.prosperify-footer{
  background:var(--ink); color:rgba(255,255,255,0.4);
  padding:32px 40px; text-align:center; font-size:13px;
}
[data-theme="dark"] footer.prosperify-footer{background:#000}
footer.prosperify-footer a{color:rgba(255,255,255,0.4); text-decoration:none}
footer.prosperify-footer a:hover{color:#fff}
footer.prosperify-footer .footer-brand{
  font-family:'Playfair Display',serif; font-size:20px; font-weight:900;
  color:var(--red); margin-bottom:8px;
}

/* ── EMAIL-CAPTURE GATE (shared modal for free tools) ─────────────────────── */
.gate-overlay{
  position:fixed; inset:0; z-index:1000; display:none;
  align-items:center; justify-content:center; padding:20px;
  background:rgba(28,25,23,0.55); backdrop-filter:blur(6px);
}
.gate-overlay.open{display:flex}
.gate-modal{
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:18px; box-shadow:var(--shadow-lg);
  width:100%; max-width:420px; padding:32px; position:relative;
}
.gate-modal::before{content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--red); border-radius:18px 18px 0 0}
.gate-close{position:absolute; top:16px; right:18px; background:none; border:none; font-size:22px; color:var(--ink-soft); cursor:pointer; line-height:1}
.gate-eyebrow{font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--red); font-weight:600; margin-bottom:10px}
.gate-title{font-family:'Playfair Display',serif; font-size:24px; font-weight:900; letter-spacing:-.5px; margin-bottom:8px; line-height:1.15}
.gate-sub{font-size:14px; color:var(--ink-mid); line-height:1.6; margin-bottom:22px}
.gate-input{
  width:100%; padding:12px 14px; font-family:'Instrument Sans',sans-serif; font-size:15px;
  border:1.5px solid var(--border); border-radius:10px; background:var(--bg); color:var(--ink);
  outline:none; transition:border-color .15s; margin-bottom:10px;
}
.gate-input:focus{border-color:var(--red)}
.gate-error{font-size:12px; color:var(--red); min-height:16px; margin-bottom:8px}
.gate-btn{
  width:100%; padding:13px; border:none; border-radius:10px;
  background:var(--red); color:#FFF8EB; font-family:'Instrument Sans',sans-serif;
  font-size:14px; font-weight:600; cursor:pointer; transition:transform .2s,box-shadow .2s;
}
.gate-btn:hover{transform:translateY(-1px); box-shadow:0 8px 24px var(--red-mid)}
.gate-fineprint{font-size:11px; color:var(--ink-soft); text-align:center; margin-top:14px; line-height:1.5}

/* ── ASSUMPTIONS & SOURCES PANEL (tax-dependent tools) ────────────────────── */
details.sources-panel{
  border:1px solid var(--border); border-radius:12px;
  background:var(--bg-card); margin-top:8px; overflow:hidden;
}
details.sources-panel summary{
  cursor:pointer; list-style:none; padding:14px 18px;
  font-size:13px; font-weight:600; color:var(--ink-mid);
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  transition:color .15s;
}
details.sources-panel summary::-webkit-details-marker{display:none}
details.sources-panel summary::after{
  content:'▾'; font-size:11px; color:var(--ink-soft);
  transition:transform .2s var(--ease); flex-shrink:0;
}
details.sources-panel[open] summary::after{transform:rotate(180deg)}
details.sources-panel summary:hover{color:var(--ink)}
.sources-verified{
  font-size:10px; font-weight:600; letter-spacing:.04em; text-transform:uppercase;
  color:var(--ink-soft); white-space:nowrap;
}
.sources-list{
  list-style:none; margin:0; padding:2px 18px 16px;
  border-top:1px solid var(--border);
}
.sources-list li{
  display:flex; flex-wrap:wrap; align-items:baseline; gap:6px 10px;
  padding:10px 0; border-bottom:1px solid var(--border); font-size:12.5px;
}
.sources-list li:last-child{border-bottom:none}
.sl-label{font-weight:600; color:var(--ink)}
.sl-value{font-family:monospace; color:var(--ink-mid)}
.sl-note{color:var(--amber); font-size:11.5px; flex-basis:100%}
.sources-list a{
  margin-left:auto; color:var(--red); text-decoration:none; font-weight:600;
  white-space:nowrap;
}
.sources-list a:hover{text-decoration:underline}

/* ── SAVE / LOAD PANEL (§16.3 saved calculations) ─────────────────────────── */
.save-panel{
  border:1px solid var(--border); border-radius:12px;
  background:var(--bg-card); padding:18px 20px; margin-top:8px;
}
.save-panel-head{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  flex-wrap:wrap; margin-bottom:4px;
}
.save-panel-title{font-size:13px; font-weight:700; color:var(--ink)}
.save-panel-sub{font-size:12px; color:var(--ink-soft); margin-top:2px}
.save-panel.signed-out{
  display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
}
.save-panel.signed-out p{font-size:13px; color:var(--ink-mid); margin:0}
.save-btn{
  background:var(--red); color:#FFF8EB; border:none; border-radius:9px;
  padding:9px 16px; font-family:'Instrument Sans',sans-serif; font-size:13px;
  font-weight:600; cursor:pointer; transition:transform .15s, box-shadow .15s; white-space:nowrap;
}
.save-btn:hover{transform:translateY(-1px); box-shadow:0 6px 18px var(--red-mid)}
.save-btn.ghost{
  background:none; color:var(--ink-mid); border:1px solid var(--border);
}
.save-btn.ghost:hover{color:var(--ink); border-color:var(--ink-mid); box-shadow:none; transform:none}
.save-btn.small{padding:5px 11px; font-size:12px; border-radius:7px}
.save-list{list-style:none; margin:12px 0 0; padding:0; display:flex; flex-direction:column; gap:6px}
.save-list li{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:9px 12px; border:1px solid var(--border); border-radius:9px; background:var(--bg);
  font-size:13px;
}
.save-list li.current{border-color:var(--red); background:var(--red-soft)}
.save-item-name{font-weight:600; color:var(--ink)}
.save-item-date{font-size:11px; color:var(--ink-soft); margin-top:1px}
.save-item-actions{display:flex; gap:6px; flex-shrink:0}
.save-empty{font-size:12.5px; color:var(--ink-soft); margin-top:10px}
.save-status{font-size:12px; color:var(--green); margin-top:8px; min-height:16px}
.save-status.err{color:var(--red)}

/* ── RESPONSIVE ───────────────────────────────────────────────────────────── */
@media(max-width:600px){
  nav#prosperify-nav{padding:0 16px}
  .tools-dd-menu{width:min(330px,calc(100vw - 32px))}
  .page-header{padding:36px 16px 24px}
  footer.prosperify-footer{padding:28px 20px}
}