/* WhatDx Lite v1.2 — bundled, dependency-free, responsive design system.
   Tailwind-inspired spacing, forms, buttons, cards and typography.
   No CDN or build step: works on shared PHP hosting. */
:root {
  color-scheme:light;
  --brand:#0f766e;
  --brand-strong:#115e59;
  --brand-soft:#ecfdf5;
  --brand-ring:rgba(13,148,136,.17);
  --ink:#142b3a;
  --ink-soft:#344b5b;
  --muted:#657987;
  --paper:#ffffff;
  --canvas:#f4f8fb;
  --line:#dde7eb;
  --alert:#fff9eb;
  --alert-ink:#824d0c;
  --error:#fef2f2;
  --success:#ecfdf5;
  --shadow:0 14px 38px rgba(15,41,57,.055),0 2px 5px rgba(15,41,57,.025);
  --radius:18px;
  --focus:0 0 0 4px var(--brand-ring);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{min-height:100vh;margin:0;color:var(--ink);background:radial-gradient(700px 300px at 14% -5%,#e3f7f3 0%,transparent 80%),linear-gradient(180deg,#f8fbfd 0%,var(--canvas) 70%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
a{color:#0c777b;text-decoration:none;text-underline-offset:3px;transition:color .15s ease}
a:hover{color:var(--brand-strong);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid rgba(13,148,136,.4);outline-offset:3px}
button,input,select,textarea{font:inherit}
button,.btn{cursor:pointer}
img,svg{max-width:100%}
.wrap{width:min(100% - 48px,1160px);margin-inline:auto}
header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(204,224,231,.86);background:rgba(255,255,255,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
header .nav{min-height:77px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:3px;font-size:22px;font-weight:850;letter-spacing:-.9px;white-space:nowrap;color:#173e4a!important}
.brand:hover{text-decoration:none}
.brandmark{display:inline-grid;place-items:center;background:linear-gradient(135deg,#12a89c,#0c696d);color:#fff;font-size:23px;width:38px;height:38px;line-height:1;border-radius:12px;margin-right:9px;box-shadow:0 5px 11px rgba(15,118,110,.2)}
.brand .light{font-weight:500;color:#57918c}
.navlinks{display:flex;gap:7px;align-items:center}
.navlinks a{display:inline-flex;align-items:center;padding:10px 15px;border-radius:10px;font-size:13px;font-weight:700;color:#47636f;white-space:nowrap}
.navlinks a:hover{background:#edf8f7;color:var(--brand-strong);text-decoration:none}
main.wrap{padding-top:39px;padding-bottom:80px;min-height:calc(100vh - 205px)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px}
.eyebrow{font-weight:800;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#0f877e}
.micro{font-size:12px;color:#6b8290}
h1,h2,h3{font-weight:790;letter-spacing:-.035em;color:#15303d}
h1{font-size:clamp(30px,3.65vw,46px);line-height:1.15;letter-spacing:-.05em;margin:15px 0 30px;max-width:860px}
h2{font-size:clamp(20px,2.2vw,24px);line-height:1.3;margin:0 0 19px}
h3{font-size:17px;line-height:1.4;margin:24px 0 12px}
p{margin:10px 0 18px;color:var(--ink-soft)}
strong,b{font-weight:760;color:var(--ink)}
.small{font-size:13px}.muted{color:var(--muted)}
.two-columns{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(292px,.93fr);gap:24px;align-items:start}
.doctor-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:start}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px;margin:0 0 22px;overflow-wrap:anywhere}
.card>h2:first-child{margin-top:0}
.card.narrow,.narrow{max-width:720px}
.side{background:linear-gradient(160deg,#f9fffe,#eaf7f7 70%,#e7f2f4);border-color:#cbe6e3;box-shadow:0 14px 40px rgba(15,118,110,.06);position:relative;overflow:hidden}
.side:after{content:"";pointer-events:none;position:absolute;width:235px;height:235px;border-radius:50%;right:-126px;top:-113px;background:rgba(19,163,151,.075)}
.side h2{position:relative;font-size:24px}
.steps{position:relative;margin-top:20px}
.steps p{display:flex;align-items:flex-start;gap:15px;margin:0;padding:18px 0;color:#325965;line-height:1.55;border-bottom:1px solid #d6eae9}
.steps p:last-child{border-bottom:0}
.steps b{display:inline-grid;place-items:center;flex:none;width:38px;height:38px;background:#d8f2ec;border:1px solid #bce4da;border-radius:12px;color:#0d776e;font-size:12px;font-weight:850}
label{display:block;font-size:13px;font-weight:750;color:#304757;margin:0 0 19px}
label .muted{font-weight:450}
input:not([type=checkbox]):not([type=file]):not([type=radio]):not([type=hidden]),textarea,select{display:block;width:100%;min-width:0;min-height:47px;border:1px solid #cadbe2;background:#fff;border-radius:11px;padding:11px 14px;margin-top:8px;outline:none;color:#183442;font-weight:450;box-shadow:0 1px 2px rgba(20,51,68,.025);transition:box-shadow .16s,border-color .16s,background .16s}
input::placeholder,textarea::placeholder{color:#97a9b4;opacity:1}
input:hover,textarea:hover,select:hover{border-color:#a6c5cb}
input:focus,textarea:focus,select:focus{border-color:#0d9488;box-shadow:var(--focus)}
textarea{resize:vertical;min-height:110px;line-height:1.62}
textarea[rows="7"]{min-height:170px}
textarea[rows="16"]{min-height:340px}
textarea[readonly]{background:#f7fafb;color:#516979}
select{appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='%23516c7a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center!important;padding-right:42px}
.field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px}
.field-row:has(>label:only-child){grid-template-columns:1fr}
.checkbox-row{display:flex;align-items:flex-start;gap:12px;padding:16px;background:#f4fbfa;border:1px solid #d5e9e4;border-radius:12px;margin:7px 0 24px}
.checkbox-row input{appearance:auto;flex:none;width:18px;height:18px;margin:2px 0 0;accent-color:var(--brand);cursor:pointer}
.checkbox-row label{font-size:13px;font-weight:480;line-height:1.55;margin:0;cursor:pointer}
.checkbox-row a{text-decoration:underline;font-weight:700}
.btn,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;min-height:43px;border:1px solid #cbdbe0;border-radius:11px;background:#fff;color:#35505f;font-size:14px;font-weight:750;line-height:1.3;box-shadow:0 1px 2px rgba(23,55,75,.025);transition:background .15s,border-color .15s,box-shadow .15s,transform .15s}
.btn:hover,button:hover{background:#f2f8f9;border-color:#9ec4c7;text-decoration:none;transform:translateY(-1px)}
.btn:active,button:active{transform:translateY(0)}
.primary,.btn.primary{background:linear-gradient(180deg,#10867c 0%,#0c706c 100%);border-color:#0b726a;color:#fff;box-shadow:0 4px 13px rgba(15,118,110,.18)}
.primary:hover,.btn.primary:hover{background:linear-gradient(180deg,#0d756c,#0b615d);border-color:#0a6861;color:#fff;box-shadow:0 6px 17px rgba(15,118,110,.25)}
#ask-btn{padding:14px 26px;min-width:182px;font-size:15px}
button:disabled,.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.plain{border:0;background:transparent;box-shadow:none;padding:6px 8px;color:#347e87;min-height:0}
.plain:hover{background:#e9f3f4;box-shadow:none}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}
.status{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border:1px solid #c9e6e2;border-radius:999px;background:#eaf8f5;color:#0b7b70;font-size:11px;letter-spacing:.035em;font-weight:800;line-height:1.2}
.notice{padding:15px 18px;margin:14px 0 22px;border:1px solid #cfebeb;border-left:4px solid #18a3a0;border-radius:12px;background:#ecfafb;color:#2b5864;font-size:13px;line-height:1.6}
.notice strong{color:inherit}
.notice.alert{background:var(--alert);border-color:#f5dfb2;border-left-color:#d99524;color:var(--alert-ink)}
.notice.error{background:var(--error);border-color:#f2c9cf;border-left-color:#e26a73;color:#93313d}
.notice.success{background:var(--success);border-color:#bde7d0;border-left-color:#21a46a;color:#155e42}
.card.side .notice{background:rgba(255,255,255,.75);margin-top:24px}
#pricing-text{max-width:580px;background:#f1f8fa;border:1px solid #dfeef1;border-radius:10px;color:#3c6573;padding:12px 14px;margin:17px 0 0;line-height:1.65}
#pricing-text strong{color:#125b68}
.bad{color:#bd343e}
.message{border-top:1px solid var(--line);padding:17px 0 0;margin:17px 0 0}
.preserve{white-space:pre-wrap;overflow-wrap:anywhere}
.answer h2{margin-top:22px}
hr,.answer hr{height:0;border:0;border-top:1px solid var(--line);margin:25px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:19px 0 24px}
.metric{padding:20px 19px;background:white;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.metric span{display:block;color:var(--muted);font-size:12px;font-weight:600}
.metric strong{display:block;font-size:26px;letter-spacing:-.035em;margin-top:8px;line-height:1.25;color:#184d55;font-variant-numeric:tabular-nums}
.card table{width:100%;border-collapse:collapse;text-align:left;font-size:13px;min-width:550px}
.card:has(table){overflow-x:auto}
.card th,.card td{padding:13px 12px;text-align:left;vertical-align:top;border-bottom:1px solid #e4ecef}
.card th{background:#f2f8f9;color:#496673;font-weight:800;font-size:12px;white-space:nowrap}
.card tr:last-child td{border-bottom:0}
.card tbody tr:hover td{background:#f9fcfc}
footer{border-top:1px solid #dce8ec;background:rgba(255,255,255,.5);padding:27px 0 35px;color:#748a95;font-size:12px}
dialog{border:1px solid #cfdee4;width:min(700px,calc(100vw - 32px));max-width:700px;max-height:calc(100dvh - 32px);padding:28px;border-radius:20px;box-shadow:0 35px 100px rgba(5,35,50,.25);color:var(--ink)}
dialog::backdrop{background:rgba(13,37,52,.68);backdrop-filter:blur(5px)}
.modal-head{display:flex;align-items:start;justify-content:space-between;gap:12px;border-bottom:1px solid #e0e8eb;padding-bottom:15px;margin-bottom:14px}
.modal-head h2{margin:0}
.policy-text{max-height:56vh;overflow:auto;padding-right:8px;font-size:13px;line-height:1.7}
.policy-text p{margin:12px 0}
.pulse{width:18px;height:18px;background:#0e968d;border-radius:50%;margin:8px 0 20px;animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{opacity:.33;transform:scale(.7)}}
details{cursor:default}
details summary{cursor:pointer;color:#1e6d75}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.91em;background:#edf4f6;padding:2px 5px;border-radius:5px}
@media(max-width:950px){.two-columns{grid-template-columns:minmax(0,1fr) minmax(240px,.72fr);gap:18px}.card{padding:25px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.two-columns,.doctor-grid{grid-template-columns:minmax(0,1fr)}.wrap{width:min(100% - 30px,1160px)}header .nav{min-height:67px}.brand{font-size:20px}.brandmark{width:34px;height:34px;font-size:20px}.navlinks a{font-size:12px;padding:8px}.topbar .micro{display:none}main.wrap{padding-top:27px;padding-bottom:45px}h1{font-size:clamp(29px,8vw,39px);margin:13px 0 23px}.card{padding:22px;margin-bottom:17px}.side{margin-top:0}.steps p{padding:14px 0}.field-row{grid-template-columns:1fr;gap:0}.metric-grid{gap:10px}.metric{padding:15px}.metric strong{font-size:21px}#ask-btn{width:100%}dialog{padding:21px}.card table{min-width:510px}}
@media(max-width:420px){.wrap{width:min(100% - 24px,1160px)}.brand .light{display:none}.navlinks{gap:0}.navlinks a{padding:7px;font-size:11px}.card{padding:18px}.metric-grid{grid-template-columns:1fr 1fr}.metric strong{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{body{background:#fff;color:#111}header,footer,.topbar,.answer .btn,.answer button,.notice{display:none!important}main.wrap{width:100%;padding:0}.card{border:0;box-shadow:none;padding:0}.answer{padding:0}a{color:#111}}

/* V1.3 structured patient questions */
/* V1.4.4: Prevent radio inputs from inheriting full-width text-field styling.
   Without this, long single-choice labels are squeezed into a narrow strip on phones. */
.question-card,.question-card form{min-width:0;max-width:100%}
.choice-set{border:0;padding:0;margin:1rem 0 1.25rem;display:grid;gap:.65rem;min-inline-size:0;min-width:0;width:100%;max-width:100%}
.choice-set legend{font-weight:650;margin-bottom:.6rem;max-width:100%;white-space:normal}
.choice-option{display:flex!important;align-items:flex-start;gap:.85rem;min-width:0;width:100%;max-width:100%;margin:0;background:#f7fbfb;border:1px solid #d8e8e7;border-radius:12px;padding:.85rem 1rem;cursor:pointer;font-weight:500}
.choice-option:hover{border-color:#3e958c;background:#eefaf8}
.choice-option:has(input:checked){border-color:#177f73;background:#e1f7f2;box-shadow:0 0 0 1px #177f73}
.choice-option input[type=radio],.choice-option input[type=checkbox]{appearance:auto;display:block;flex:0 0 18px;width:18px;min-width:18px;max-width:18px;height:18px;min-height:18px;max-height:18px;padding:0;margin:2px 0 0;border:0;background:transparent;box-shadow:none;accent-color:#157e71;cursor:pointer}
.choice-option span{display:block;flex:1 1 0;min-width:0;white-space:normal;overflow-wrap:anywhere;line-height:1.5;font-size:14px;font-weight:500}
.optional-upload{margin:1rem 0;padding:1rem;border:1px dashed #b7d1cb;border-radius:12px}.optional-upload summary{cursor:pointer;font-weight:600}.question-card fieldset + label{margin-top:1rem}


/* V1.3.2 waiting states — indeterminate, never implies an exact percentage */
.processing-loader{display:flex;justify-content:flex-start;margin:12px 0}
.spinner{width:34px;height:34px;flex:none;border-radius:50%;border:4px solid #cfe9e3;border-top-color:#0b8779;animation:wdx-spin .9s linear infinite}
@keyframes wdx-spin{to{transform:rotate(360deg)}}
.progress-track{height:8px;border-radius:999px;background:#d9e9e8;position:relative;overflow:hidden;margin:18px 0}
.progress-indeterminate{position:absolute;height:100%;width:38%;background:linear-gradient(90deg,#52c9b6,#0c8075);border-radius:999px;animation:wdx-progress 1.8s ease-in-out infinite}
@keyframes wdx-progress{0%{transform:translateX(-120%)}100%{transform:translateX(370%)}}
.global-wait{position:fixed;inset:0;z-index:9999;background:rgba(11,33,45,.58);display:flex;align-items:center;justify-content:center;padding:20px}
.global-wait[hidden]{display:none!important}
.wait-card{width:min(440px,100%);background:white;border-radius:18px;padding:30px;box-shadow:0 26px 80px rgba(5,30,40,.22);text-align:center}
.wait-card .spinner{display:block;margin:0 auto 18px}
.wait-card strong{display:block;font-size:17px}
.wait-card p{margin:10px 0 0}
@media(prefers-reduced-motion:reduce){.progress-indeterminate{animation:none;width:100%;opacity:.55}.spinner{animation:none;border-top-color:#0b8779}}

/* V1.4 WhatsApp intake */
.wa-number-row{grid-template-columns:minmax(115px,135px) minmax(0,1fr)!important}
.wa-number-row input{font-variant-numeric:tabular-nums}
@media(max-width:440px){.wa-number-row{grid-template-columns:minmax(90px,105px) minmax(0,1fr)!important;gap:10px}}

/* V1.4.3 country-linked WhatsApp dialing + animated doctor brand */
.country-select-wrap{position:relative;display:flex;align-items:center}
.country-select-wrap select{padding-left:54px;flex:1;min-width:0}
.country-flag{position:absolute;left:15px;top:50%;transform:translateY(-40%);font-size:22px;z-index:1;pointer-events:none;line-height:1}
.wa-number-row{display:grid;grid-template-columns:minmax(106px,134px) minmax(0,1fr);gap:12px;align-items:start}
.wa-number-row label{margin-bottom:6px;min-width:0}
.wa-number-row .dial-display{display:flex;align-items:center;height:47px;min-height:47px;border:1px solid #cadbe2;background:#f1f7f8;border-radius:11px;margin-top:8px;padding:8px 10px;white-space:nowrap;font-weight:700;font-size:15px;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.wa-number-row input[type=tel]{margin-top:8px;min-height:47px}
.wa-hint{margin:2px 0 17px!important}
.wa-number-row input:invalid:not(:placeholder-shown){border-color:#c65b57}
.brandmark{background:#d8edff;overflow:hidden;position:relative;width:46px;height:46px;flex:none;padding:0;border-radius:50%;box-shadow:0 5px 12px rgba(20,90,120,.16);animation:doctor-bob 3.7s ease-in-out infinite}
.brandmark .doctor-avatar{display:block;width:100%;height:100%;object-fit:cover;border-radius:50%;animation:doctor-wave 4.8s ease-in-out infinite}
@keyframes doctor-bob{0%,100%{transform:translateY(0)}48%{transform:translateY(-3px)}}
@keyframes doctor-wave{0%,100%{transform:rotate(0)}48%{transform:rotate(3deg)}}
@media(max-width:440px){.wa-number-row{grid-template-columns:minmax(102px,114px) minmax(0,1fr);gap:8px}.wa-number-row .dial-display{font-size:13px;padding:8px}.brandmark{width:39px;height:39px}}
/* Keep narrow-phone navigation from making the whole page wider than the viewport. */
@media(max-width:359px){header .nav{flex-wrap:wrap;gap:0;padding-block:7px}.navlinks{width:100%;justify-content:space-between}.navlinks a{padding:5px 0}}
@media(prefers-reduced-motion:reduce){.brandmark,.brandmark .doctor-avatar{animation:none}}