/* =====================================================================
   Nassim's Plumbing -- interactive chrome.
   Utility bar, booking CTAs, booking modal, and the chat assistant.
   Loaded after site.css on every page.
   ===================================================================== */

/* ##### SECTION: UI / UTILITY TOP BAR ##### */
.topbar{
  position:fixed;inset:0 0 auto 0;z-index:61;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:0 var(--pad);height:42px;background:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.08em;color:#dbe7fb;
}
.topbar a{display:inline-flex;align-items:center;gap:8px;transition:color .3s}
.topbar a:hover{color:var(--aqua)}
.topbar svg{width:13px;height:13px;stroke:var(--aqua);fill:none;stroke-width:2.2}
.topbar .tb-right{display:flex;align-items:center;gap:22px}
.topbar .tb-note{color:rgba(219,231,251,.72);font-weight:500;letter-spacing:.04em}
.nav{top:42px}
@media (max-width:860px){
  .topbar{height:38px;font-size:11px}
  .topbar .tb-note{display:none}
  .nav{top:38px}
}

/* ##### SECTION: UI / NAV BOOK BUTTON ##### */
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-book{
  display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:999px;
  background:var(--aqua);color:#04121d;font-size:11.5px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;white-space:nowrap;cursor:pointer;border:0;
  font-family:var(--sans);transition:background .3s,transform .3s;
  box-shadow:0 10px 26px -14px rgba(63,224,208,.7);
}
.nav-book:hover{background:#63f0e2;transform:translateY(-1px)}

/* ##### SECTION: UI / SERVICE CTA BAND ##### */
.svc-band{
  background:linear-gradient(100deg,var(--brand) 0%,#1b3a6e 100%);
  border-block:1px solid rgba(140,175,225,.2);position:relative;z-index:5;
}
.svc-band .wrap{
  padding-block:clamp(26px,3.4vw,42px);display:flex;align-items:center;
  justify-content:space-between;gap:clamp(18px,3vw,40px);flex-wrap:wrap;
}
.svc-band h2{font-size:clamp(19px,2.1vw,27px);letter-spacing:-.01em}
.svc-band .row{display:flex;gap:12px;flex-wrap:wrap}
.svc-band .btn-ghost{border-color:rgba(219,231,251,.34);color:#eaf2ff}
.svc-band .btn-ghost:hover{border-color:var(--aqua);background:rgba(63,224,208,.12)}

/* ##### SECTION: UI / MOBILE STICKY ACTION BAR ##### */
.sticky-bar{display:none}
@media (max-width:860px){
  .sticky-bar{
    display:grid;grid-template-columns:repeat(3,1fr);position:fixed;inset:auto 0 0 0;z-index:62;
    background:rgba(5,13,28,.94);backdrop-filter:blur(16px);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .sticky-bar a,.sticky-bar button{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    padding:11px 6px 12px;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--mist);background:none;border:0;border-right:1px solid var(--line);
    font-family:var(--sans);cursor:pointer;
  }
  .sticky-bar > :last-child{border-right:0}
  .sticky-bar svg{width:17px;height:17px;stroke:var(--aqua);fill:none;stroke-width:2}
  .sticky-bar .primary{background:var(--aqua);color:#04121d}
  .sticky-bar .primary svg{stroke:#04121d}
  body{padding-bottom:66px}
  .chat-launch{bottom:calc(74px + env(safe-area-inset-bottom))}
}

/* ##### SECTION: UI / BOOKING MODAL ##### */
.modal{
  position:fixed;inset:0;z-index:95;display:grid;place-items:center;padding:20px;
  background:rgba(3,8,18,.78);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
.modal.open{opacity:1;visibility:visible}
.modal-card{
  width:min(560px,100%);max-height:min(86vh,780px);overflow-y:auto;
  background:#0a1526;border:1px solid var(--line);border-radius:20px;
  padding:clamp(24px,3.4vw,38px);transform:translateY(14px) scale(.98);
  transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.modal.open .modal-card{transform:none}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:8px}
.modal-head h2{font-size:clamp(22px,2.6vw,30px)}
.modal-close{
  width:36px;height:36px;flex:0 0 36px;border-radius:50%;border:1px solid var(--line);
  background:none;color:var(--mist);cursor:pointer;font-size:17px;line-height:1;
  transition:border-color .3s,color .3s;
}
.modal-close:hover{border-color:var(--aqua);color:var(--white)}
.modal .sub{font-size:14.5px;color:var(--steel);margin-bottom:24px}
.field{margin-bottom:16px}
.field label{
  display:block;font-size:11px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;
  color:var(--steel);margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:11px;background:#07101f;color:var(--white);
  border:1px solid var(--line);font-family:var(--sans);font-size:15px;
  transition:border-color .25s,background .25s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(63,224,208,.7);background:#08182b;
}
.field textarea{resize:vertical;min-height:88px}
.field select{
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--steel) 50%),
                   linear-gradient(135deg,var(--steel) 50%,transparent 50%);
  background-position:calc(100% - 19px) 21px,calc(100% - 14px) 21px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field .err{display:block;margin-top:6px;font-size:12px;color:#ff9a9a}
.field.invalid input,.field.invalid select{border-color:rgba(255,154,154,.7)}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.modal-note{margin-top:18px;font-size:12.5px;color:rgba(142,163,196,.85);line-height:1.6}
.modal-done{text-align:center;padding:14px 0}
.modal-done .tick{
  width:58px;height:58px;margin:0 auto 20px;border-radius:50%;display:grid;place-items:center;
  background:rgba(63,224,208,.14);border:1px solid rgba(63,224,208,.4);
}
.modal-done .tick svg{width:24px;height:24px;stroke:var(--aqua);fill:none;stroke-width:2.4}
.modal-done h2{margin-bottom:12px}
@media (max-width:600px){ .field-row{grid-template-columns:1fr} }

/* ##### SECTION: UI / CHAT LAUNCHER ##### */
.chat-launch{
  position:fixed;right:20px;bottom:20px;z-index:80;width:58px;height:58px;border-radius:50%;
  border:0;cursor:pointer;background:var(--aqua);color:#04121d;display:grid;place-items:center;
  box-shadow:0 16px 40px -14px rgba(63,224,208,.85);transition:transform .3s,background .3s;
}
.chat-launch:hover{transform:translateY(-2px) scale(1.04)}
.chat-launch svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2}
.chat-launch .x{display:none}
.chat-launch.open .bub{display:none}
.chat-launch.open .x{display:block}
.chat-launch .ping{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;
  background:var(--amber);border:2px solid var(--ink);
}
.chat-launch.open .ping,.chat-launch.seen .ping{display:none}

/* ##### SECTION: UI / CHAT PANEL ##### */
.chat-panel{
  position:fixed;right:20px;bottom:90px;z-index:81;width:min(388px,calc(100vw - 40px));
  height:min(600px,calc(100vh - 150px));display:flex;flex-direction:column;
  background:#08111f;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:0 40px 90px -30px rgba(0,0,0,.95);
  opacity:0;visibility:hidden;transform:translateY(16px) scale(.97);transform-origin:bottom right;
  transition:opacity .3s,visibility .3s,transform .35s cubic-bezier(.2,.8,.2,1);
}
.chat-panel.open{opacity:1;visibility:visible;transform:none}
@media (max-width:600px){
  .chat-panel{right:10px;left:10px;width:auto;bottom:84px;height:min(70vh,540px)}
  .chat-launch{right:14px}
}
.chat-head{
  display:flex;align-items:center;gap:12px;padding:15px 16px;
  background:linear-gradient(100deg,var(--brand),#1b3a6e);border-bottom:1px solid var(--line);
}
.chat-head .avatar{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--white);
  display:grid;place-items:center;padding:5px;
}
.chat-head .meta{flex:1;min-width:0;line-height:1.3}
.chat-head b{display:block;font-size:14px;color:var(--white);font-weight:600}
.chat-head span{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:rgba(219,231,251,.72)}
.chat-head .human{
  padding:8px 12px;border-radius:999px;border:1px solid rgba(219,231,251,.3);background:none;
  color:#eaf2ff;font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  cursor:pointer;font-family:var(--sans);white-space:nowrap;transition:border-color .3s,background .3s;
}
.chat-head .human:hover{border-color:var(--aqua);background:rgba(63,224,208,.14)}

.chat-log{
  flex:1;overflow-y:auto;padding:18px 16px;display:flex;flex-direction:column;gap:12px;
  scroll-behavior:smooth;
}
.chat-log::-webkit-scrollbar{width:6px}
.chat-log::-webkit-scrollbar-thumb{background:rgba(140,175,225,.22);border-radius:3px}
.msg{
  max-width:86%;padding:11px 14px;border-radius:14px;font-size:14px;line-height:1.6;
  white-space:pre-wrap;overflow-wrap:anywhere;
}
.msg.bot{align-self:flex-start;background:#10203a;color:var(--mist);border-bottom-left-radius:5px}
.msg.me{align-self:flex-end;background:var(--aqua);color:#04121d;border-bottom-right-radius:5px;font-weight:500}
.msg.sys{
  align-self:center;max-width:100%;background:none;padding:4px 0;text-align:center;
  font-size:11.5px;color:rgba(142,163,196,.8);
}
.msg a{text-decoration:underline}
.typing{align-self:flex-start;display:flex;gap:5px;padding:14px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--steel);animation:bounce 1.3s infinite}
.typing i:nth-child(2){animation-delay:.18s}
.typing i:nth-child(3){animation-delay:.36s}
@keyframes bounce{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}

.chat-cards{display:flex;flex-direction:column;gap:8px;align-self:flex-start;max-width:92%;width:100%}
.chat-card{
  border:1px solid var(--line);border-radius:12px;padding:13px 15px;background:#0c1a2e;
  display:flex;align-items:center;gap:11px;font-size:13.5px;color:var(--white);
  cursor:pointer;transition:border-color .3s,background .3s;font-family:var(--sans);text-align:left;
}
.chat-card:hover{border-color:rgba(63,224,208,.6);background:#0f2337}
.chat-card svg{width:17px;height:17px;flex:0 0 17px;stroke:var(--aqua);fill:none;stroke-width:2}
.chat-chips{display:flex;flex-wrap:wrap;gap:7px;padding:0 16px 12px}
.chat-chips button{
  font-size:12px;padding:8px 13px;border-radius:999px;border:1px solid var(--line);
  background:none;color:var(--mist);cursor:pointer;font-family:var(--sans);
  transition:border-color .25s,color .25s;
}
.chat-chips button:hover{border-color:rgba(63,224,208,.6);color:var(--white)}

.chat-form{display:flex;gap:9px;padding:12px 14px;border-top:1px solid var(--line);background:#0a1424}
.chat-form input{
  flex:1;min-width:0;padding:12px 14px;border-radius:999px;background:#07101f;color:var(--white);
  border:1px solid var(--line);font-family:var(--sans);font-size:14px;
}
.chat-form input:focus{outline:none;border-color:rgba(63,224,208,.7)}
.chat-form button{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;border:0;background:var(--aqua);
  color:#04121d;cursor:pointer;display:grid;place-items:center;transition:background .3s,opacity .3s;
}
.chat-form button:disabled{opacity:.4;cursor:default}
.chat-form button svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2.2}
.chat-foot{padding:0 16px 11px;font-size:10.5px;color:rgba(142,163,196,.65);text-align:center;line-height:1.5}

/* ##### SECTION: UI / NAV COLLAPSE ##### */
/* The nav now carries a phone chip and a Book button as well as the links,
   so it runs out of room well before the old 860px breakpoint. */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-burger{display:block}
  .nav.open .nav-links{
    display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;
    gap:2px;padding:14px var(--pad) 26px;background:rgba(5,13,28,.97);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .nav.open .nav-links a{padding:13px 0;font-size:13px}
}
@media (max-width:720px){
  .nav-call span{display:none}
  .nav-call{padding:11px 13px}
}
@media (max-width:560px){
  .nav-book{display:none}
}