/* AeroVisto – Cabin Upgrade ROM Calculator
   Tokens and measures from the Claude Design export (AeroVisto Design System). Radius 0 everywhere. */

@font-face{font-family:"Roboto";src:url("fonts/Roboto-Light.ttf") format("truetype");font-weight:300;font-style:normal;font-display:swap}
@font-face{font-family:"Roboto";src:url("fonts/Roboto-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Roboto";src:url("fonts/Roboto-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap}

:root{
  --av-blue:#00263A;--av-blue-light:#009CDE;--av-red:#D6001C;
  --white:#FFFFFF;--black:#000000;
  --gray-700:#53565A;--gray-500:#777980;--gray-400:#9A9AA0;--gray-300:#C9C9CC;--gray-200:#E9E9E9;--gray-100:#F4F4F4;
  --hairline:#E5E5E5;
  --shadow-card:0 1px 4px rgba(0,0,0,.08);--shadow-dialog:0 6px 22px rgba(0,0,0,.12);
  --ease:cubic-bezier(.4,0,.2,1);
  --font:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:15px;line-height:1.5;color:var(--black);background:var(--gray-200);-webkit-font-smoothing:antialiased}
a{color:var(--black);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--av-blue-light)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
[hidden]{display:none !important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- frame ---------- */
.frame{max-width:1440px;margin:0 auto;background:var(--white);min-height:100vh;padding:56px 120px 44px}
@media (max-width:1100px){.frame{padding:40px 48px 32px}}
@media (max-width:720px){body{background:var(--white)}.frame{padding:24px 20px 20px;min-height:auto}}

/* ---------- header ---------- */
.chrome{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;border-bottom:1px solid var(--hairline);padding-bottom:30px}
.chrome__brand{display:flex;flex-direction:column;gap:22px}
.chrome__logo{width:212px;height:auto}
.chrome__title{font-size:30px;font-weight:700;line-height:1.15}
.chrome__sub{font-size:17px;font-weight:300;line-height:1.6;color:var(--gray-500);margin-top:7px}
.chrome__domain{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-400);white-space:nowrap;padding-bottom:6px}
@media (max-width:720px){
  .chrome{padding-bottom:0;border-bottom:0;gap:0}
  .chrome__brand{gap:22px}
  .chrome__logo{width:148px}
  .chrome__title{font-size:21px;line-height:1.2}
  .chrome__sub{font-size:14px;margin-top:6px}
  .chrome__domain{display:none}
}

/* stepper (desktop) */
.steps{display:flex;align-items:center;padding-top:34px}
.step{display:flex;align-items:center;gap:16px;flex:1 1 0;min-width:0}
.step__head{display:flex;align-items:center;gap:12px;white-space:nowrap}
.step__num{width:30px;height:30px;flex:0 0 30px;display:flex;align-items:center;justify-content:center;background:var(--white);border:1px solid var(--hairline);color:var(--gray-400);font-size:14px;font-weight:700}
.step__label{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-400)}
.step__rule{flex:1 1 auto;height:1px;background:var(--hairline);min-width:24px}
.step:last-child .step__rule{background:transparent}
.step.is-active .step__num{border-color:var(--black);color:var(--black)}
.step.is-active .step__label{color:var(--black);font-weight:700}
.step.is-done .step__num{background:var(--black);border-color:var(--black);color:var(--white)}
.step.is-done .step__label{color:var(--black)}
/* stepper (mobile) */
.msteps{display:none;flex-direction:column;gap:10px;border-top:1px solid var(--hairline);padding-top:18px;margin-top:22px}
.msteps__bars{display:flex;gap:8px}
.msteps__bar{flex:1 1 0;height:3px;background:var(--hairline)}
.msteps__bar.is-done{background:var(--gray-400)}
.msteps__bar.is-active{background:var(--black)}
.msteps__label{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-500)}
@media (max-width:720px){.steps{display:none}.msteps{display:flex}}

/* ---------- layout ---------- */
.screen{display:flex;flex-direction:column;gap:32px;padding-top:56px}
@media (max-width:720px){.screen{gap:22px;padding-top:22px}}
.card{border:1px solid var(--hairline);background:var(--white);box-shadow:var(--shadow-card);padding:40px 44px;display:flex;flex-direction:column;gap:30px}
.card--detail{padding:36px 44px;gap:24px}
.card__title{font-size:22px;font-weight:700}
.card__lead{font-size:15px;line-height:1.75;color:var(--gray-500);max-width:900px;margin-top:-18px}
.card__head{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--hairline);padding-bottom:18px}
.card__head h3{margin:0;font-size:18px;font-weight:700}
@media (max-width:720px){
  .card{padding:22px 20px;gap:20px;box-shadow:none}
  .card--detail{padding:22px 20px;gap:18px}
  .card__title{font-size:18px}
  .card__lead{margin-top:-8px}
}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px 32px}
@media (max-width:720px){.grid2{grid-template-columns:1fr;gap:20px}}
.span2{grid-column:1 / -1}
@media (max-width:720px){.span2{grid-column:auto}}

/* ---------- fields ---------- */
.field{display:flex;flex-direction:column;gap:9px;min-width:0}
.field__label{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-700)}
.field__label .req{color:var(--gray-400)}
.control{position:relative;display:flex;align-items:center}
.input{width:100%;min-height:50px;padding:0 16px;border:1px solid var(--hairline);background:var(--white);font-size:15px;color:var(--black);outline:none;transition:border-color .2s var(--ease);-webkit-appearance:none;appearance:none;border-radius:0}
.input::placeholder{color:var(--gray-400)}
.input:focus{border-color:var(--black);outline:2px solid var(--av-blue-light);outline-offset:2px}
.input:disabled{background:var(--gray-100);color:var(--gray-400)}
select.input{padding-right:40px;cursor:pointer}
select.input:invalid,select.input.is-placeholder{color:var(--gray-400)}
.control--select::after{content:"\25BE";position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:10px;color:var(--gray-500);pointer-events:none}
.input--narrow{max-width:240px}
.field.is-error .input{border:2px solid var(--av-red)}
.field__hint{font-size:13px;line-height:1.5;color:var(--av-red)}
.field__hint:empty{display:none}
textarea.input{min-height:92px;padding:14px 16px;line-height:1.7;resize:vertical}
@media (max-width:720px){.input{min-height:48px;padding:0 14px}.field__label{font-size:11px}.field{gap:8px}}

/* checkbox row */
.check{display:flex;align-items:center;gap:13px;cursor:pointer;user-select:none}
.check input{position:absolute;opacity:0;width:0;height:0}
.check__box{width:20px;height:20px;flex:0 0 20px;display:flex;align-items:center;justify-content:center;background:var(--white);border:1px solid var(--gray-400);color:var(--white);font-size:12px;transition:background .2s var(--ease),border-color .2s var(--ease)}
.check__box::after{content:"\2713";opacity:0}
.check input:checked ~ .check__box{background:var(--black);border-color:var(--black)}
.check input:checked ~ .check__box::after{opacity:1}
.check input:focus-visible ~ .check__box{outline:2px solid var(--av-blue-light);outline-offset:2px}
.check__label{font-size:15px}
.check.is-disabled{cursor:default}
.check.is-disabled .check__box{background:var(--gray-100);border-color:var(--gray-300)}
.check.is-disabled .check__label{color:var(--gray-400)}
.check--consent{align-items:flex-start;gap:14px;padding-top:4px}
.check--consent .check__box{margin-top:2px}
.check--consent .check__label{font-size:15px;line-height:1.7;color:var(--gray-500);max-width:820px}
.check--consent .check__label a{font-weight:700;border-bottom:1px solid var(--hairline)}
.check--consent.is-error .check__box{border:2px solid var(--av-red)}
@media (max-width:720px){.check--consent .check__label{font-size:13px;line-height:1.65}}

/* ---------- messages ---------- */
.alert{border:1px solid var(--av-red);padding:16px 20px;font-size:14px;font-weight:700;color:var(--av-red)}
.alert:empty{display:none}
.info{background:var(--gray-100);padding:20px 24px;font-size:15px;line-height:1.75;color:var(--gray-700);max-width:900px}
.note{font-size:14px;line-height:1.7;color:var(--gray-500);border-left:1px solid var(--hairline);padding-left:16px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 30px;background:var(--black);border:2px solid var(--black);color:var(--white);font-size:15px;font-weight:700;letter-spacing:.06em;line-height:1.2;text-align:center;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),opacity .2s var(--ease);white-space:nowrap}
.btn:hover{background:var(--av-blue);border-color:var(--av-blue);color:var(--white)}
.btn:active{opacity:.82}
.btn:focus-visible{outline:2px solid var(--av-blue-light);outline-offset:2px}
.btn--outline{background:var(--white);color:var(--black)}
.btn--outline:hover{background:var(--white);border-color:var(--av-blue);color:var(--av-blue)}
.btn--accent{background:var(--av-blue);border-color:var(--av-blue)}
.btn--accent:hover{background:var(--black);border-color:var(--black)}
.btn--md{min-height:46px;padding:0 26px;font-size:14px}
.btn--block{width:100%}
.btn.is-loading{opacity:.35;pointer-events:none}
.btn.is-done,.btn:disabled{background:var(--white);border-color:var(--gray-300);color:var(--gray-400);pointer-events:none;white-space:normal}
.btn.is-done.btn--accent,.btn--accent:disabled{background:var(--gray-100)}
.spinner{width:15px;height:15px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;display:inline-block;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.textbtn{font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-500)}
.textbtn:hover{color:var(--black)}
.link{font-size:14px;font-weight:700;color:var(--black)}
.link--quiet{font-weight:400;color:var(--gray-500)}
@media (max-width:720px){.btn{min-height:52px;width:100%;white-space:normal}}

/* nav row */
.nav{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--hairline);margin-top:44px;padding-top:32px}
.nav--end{justify-content:flex-end}
.nav__right{display:flex;align-items:center;gap:24px}
.nav__hint{font-size:14px;color:var(--gray-400)}
@media (max-width:720px){
  .nav{flex-direction:column-reverse;align-items:stretch;margin-top:22px;padding-top:22px;gap:12px}
  .nav__right{flex-direction:column-reverse;align-items:stretch;gap:12px}
  .nav__hint{text-align:center}
}

/* footer */
.foot{display:flex;justify-content:space-between;align-items:center;gap:24px;border-top:1px solid var(--hairline);margin-top:36px;padding-top:24px;font-size:12px}
.foot__version{color:var(--gray-400)}
.foot__links{display:flex;gap:24px}
.foot__links a{color:var(--gray-500)}
.foot__links a:hover{color:var(--black)}
@media (max-width:720px){.foot{flex-direction:column;align-items:flex-start;gap:8px;margin-top:22px;padding-top:16px;font-size:11px}.foot__links{gap:18px}}

/* ---------- verification ---------- */
.verify{display:flex;justify-content:center;padding:72px 0 64px}
.verify__card{width:560px;max-width:100%;border:1px solid var(--hairline);background:var(--white);box-shadow:var(--shadow-card);padding:48px 52px;display:flex;flex-direction:column;gap:26px;align-items:center;text-align:center}
.verify__title{font-size:26px;font-weight:700}
.verify__text{font-size:16px;line-height:1.8;color:var(--gray-500)}
.digits{display:flex;gap:12px;padding:6px 0 2px}
.digit{width:56px;height:68px;text-align:center;border:1px solid var(--hairline);font-size:26px;font-weight:700;color:var(--black);outline:none;background:var(--white);border-radius:0;padding:0}
.digit:focus{border:2px solid var(--av-blue-light);outline:2px solid var(--av-blue-light);outline-offset:2px}
.digit.is-filled{border:2px solid var(--black)}
.digits.is-error .digit{border:2px solid var(--av-red)}
.verify__err{font-size:14px;color:var(--av-red)}
.verify__err:empty{display:none}
.verify__links{display:flex;flex-direction:column;gap:12px;align-items:center;padding-top:2px}
.verify__resend{font-size:14px;color:var(--gray-400)}
.verify__ok{width:56px;height:56px;border:2px solid var(--av-blue);color:var(--av-blue);display:flex;align-items:center;justify-content:center;font-size:26px}
@media (max-width:720px){
  .verify{padding:0}
  .verify__card{padding:28px 20px;gap:20px;box-shadow:none}
  .verify__title{font-size:21px}.verify__text{font-size:14px;line-height:1.7}
  .digits{gap:8px}.digit{width:46px;height:58px;font-size:22px}
}

/* ---------- step 3 ---------- */
.cats{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}
@media (max-width:720px){.cats{grid-template-columns:1fr;gap:12px}}
.cat{display:flex;align-items:center;gap:14px;border:1px solid var(--hairline);background:var(--white);padding:18px 20px;cursor:pointer;user-select:none;transition:border-color .2s var(--ease)}
.cat input{position:absolute;opacity:0;width:0;height:0}
.cat__box{width:20px;height:20px;flex:0 0 20px;display:flex;align-items:center;justify-content:center;border:1px solid var(--gray-400);color:var(--white);font-size:12px}
.cat__box::after{content:"\2713";opacity:0}
.cat__label{font-size:16px;font-weight:700}
.cat:hover{border-color:var(--gray-400)}
.cat.is-on{border:2px solid var(--black);padding:17px 19px}
.cat.is-on .cat__box{background:var(--black);border-color:var(--black)}
.cat.is-on .cat__box::after{opacity:1}
.cat input:focus-visible ~ .cat__box{outline:2px solid var(--av-blue-light);outline-offset:2px}
.card--detail.is-error{border:1px solid var(--av-red)}
.selall{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--black)}
.items{display:grid;grid-template-columns:1fr 1fr;gap:14px 32px}
@media (max-width:720px){.items{grid-template-columns:1fr;gap:12px}}
.chips{display:flex;flex-wrap:wrap;gap:14px}
.chip{padding:14px 22px;border:1px solid var(--hairline);background:var(--white);font-size:15px;cursor:pointer;user-select:none;transition:border-color .2s var(--ease)}
.chip input{position:absolute;opacity:0;width:0;height:0}
.chip:hover{border-color:var(--gray-400)}
.chip.is-on{border:2px solid var(--black);padding:13px 21px;font-weight:700}
.chip:focus-within{outline:2px solid var(--av-blue-light);outline-offset:2px}
@media (max-width:720px){.chips{gap:10px}.chip{padding:12px 16px;font-size:14px}.chip.is-on{padding:11px 15px}}

/* ---------- result ---------- */
.hero{background:var(--av-blue);padding:56px 60px;display:flex;align-items:flex-end;justify-content:space-between;gap:48px;color:var(--white)}
.hero__label{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.hero__range{font-size:60px;font-weight:700;line-height:1.05;margin-top:14px}
.hero__scope{font-size:17px;font-weight:300;color:rgba(255,255,255,.86);margin-top:14px}
.hero__ref{font-size:14px;color:rgba(255,255,255,.66);margin-top:20px}
.hero__logo{width:150px;height:auto;flex:0 0 150px}
@media (max-width:1100px){.hero__range{font-size:44px}}
@media (max-width:720px){
  .hero{padding:28px 22px;flex-direction:column;align-items:flex-start;gap:0}
  .hero__range{font-size:27px;line-height:1.15;margin-top:10px}
  .hero__scope{font-size:14px;margin-top:10px}.hero__ref{font-size:12px;margin-top:10px}
  .hero__logo{display:none}
}
.tags{display:flex;flex-wrap:wrap;gap:12px}
.tag{border:1px solid var(--hairline);background:var(--gray-100);padding:9px 16px;font-size:14px;color:var(--gray-700)}
@media (max-width:720px){.tags{gap:8px}.tag{padding:7px 12px;font-size:12px}}
.breakdown{display:flex;flex-direction:column}
.breakdown__head{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-700);padding-bottom:14px;border-bottom:1px solid var(--black)}
.row{display:flex;align-items:baseline;justify-content:space-between;gap:32px;padding:15px 0;border-bottom:1px solid var(--hairline)}
.row__cat{font-size:15px;color:var(--gray-700)}
.row__range{font-size:15px;white-space:nowrap}
.row--total{padding:22px 0 0;border-bottom:0}
.row--total .row__cat{font-size:17px;font-weight:700;color:var(--black)}
.row--total .row__range{font-size:20px;font-weight:700}
@media (max-width:720px){
  .breakdown__head{font-size:11px;padding-bottom:10px}
  .row{gap:14px;padding:11px 0}.row__cat,.row__range{font-size:13px}.row__range{white-space:normal;text-align:right}
  .row--total{padding-top:14px}.row--total .row__cat,.row--total .row__range{font-size:15px}
}
.actions{display:flex;flex-wrap:wrap;gap:16px}
@media (max-width:720px){.actions{flex-direction:column;gap:12px}}
.disclaimer{background:var(--gray-100);padding:26px 30px;font-size:14px;line-height:1.8;color:var(--gray-700)}
@media (max-width:720px){.disclaimer{padding:18px 20px;font-size:12px;line-height:1.75}}
.center{display:flex;justify-content:center;padding-top:14px}
.center--buttons{gap:16px;flex-wrap:wrap;padding-top:6px}
@media (max-width:720px){.center--buttons{flex-direction:column;align-items:stretch}.center--buttons .btn{width:100%}}
.state{border:1px solid var(--hairline);padding:34px 36px;display:flex;flex-direction:column;gap:24px;align-items:flex-start}
.state--error{border-color:var(--av-red)}
.state__text{font-size:17px;line-height:1.8;color:var(--gray-700)}
@media (max-width:720px){.state{padding:22px 20px}.state__text{font-size:15px}}

/* ---------- dialog ---------- */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}
.dialog{width:620px;max-width:100%;max-height:100%;overflow:auto;border:1px solid var(--gray-300);background:var(--white);box-shadow:var(--shadow-dialog);padding:44px 48px;display:flex;flex-direction:column;gap:26px}
.dialog__title{font-size:26px;font-weight:700}
.dialog__text{font-size:16px;line-height:1.8;color:var(--gray-500)}
.dialog__summary{background:var(--gray-100);padding:18px 20px;font-size:14px;line-height:1.6;color:var(--gray-700)}
.dialog__actions{display:flex;align-items:center;gap:24px;padding-top:4px}
.dialog--confirm{align-items:flex-start;gap:22px}
.dialog--confirm .dialog__title{font-size:22px}
@media (max-width:720px){
  .dialog{padding:28px 20px;gap:20px}
  .dialog__title{font-size:21px}.dialog__text{font-size:14px}
  .dialog__actions{flex-direction:column;align-items:stretch;gap:16px;text-align:center}
}

/* utilities */
.hide-mobile{display:block}
@media (max-width:720px){.hide-mobile{display:none}}
.fade-in{animation:fade .25s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}