:root{
    --ink:#11110f;
    --ink-2:#1d1d1a;
    --orange:#f26b21;
    --orange-2:#ff8a3d;
    --orange-soft:#fff1e8;
    --orange-line:#ffd9c2;
    --paper:#ffffff;
    --canvas:#f6f6f3;
    --line:#e7e5df;
    --muted:#74736d;
    --muted-2:#98968f;
    --green:#16845b;
    --green-soft:#eaf7f1;
    --red:#c94132;
    --shadow:0 22px 70px rgba(17,17,15,.08);
    --radius:24px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    min-width:320px;
    background:var(--canvas);
    color:var(--ink);
    font-family:"DM Sans",Arial,sans-serif;
    font-size:15px;
    line-height:1.55;
}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:inherit}

.signup-shell{min-height:100vh}

/* ---------------- HEADER / CURRENT FOLLOWUPPRO LOGO ---------------- */
.signup-header{
    background:#1d1d1b;
    border-bottom:1px solid rgba(255,255,255,.08);
    position:sticky;
    top:0;
    z-index:100;
    box-shadow:0 8px 28px rgba(0,0,0,.10);
}
.signup-header-inner{
    width:min(1320px,calc(100% - 44px));
    min-height:78px;
    margin:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
}
/* Supplied FollowUpPro logo: three ascending orange bars with white/orange wordmark. */
.fp-brand{
    display:inline-flex;
    align-items:center;
    gap:14px;
    text-decoration:none;
    color:#fff;
}
.fp-brand-symbol{
    width:34px;
    height:44px;
    display:inline-flex;
    align-items:flex-end;
    justify-content:flex-start;
    gap:5px;
    flex:0 0 34px;
    background:transparent;
    box-shadow:none;
}
.fp-brand-symbol i{
    display:block;
    width:8px;
    flex:0 0 8px;
    border-radius:999px;
    background:#e85a2d;
    transform:none;
}
.fp-brand-symbol i:nth-child(1){height:22px;background:#b94f2b}
.fp-brand-symbol i:nth-child(2){height:32px;background:#df592d}
.fp-brand-symbol i:nth-child(3){height:44px;background:#ff5a2f}
.fp-brand-word{
    font-family:Arial,Helvetica,sans-serif;
    font-weight:700;
    font-size:31px;
    line-height:1;
    letter-spacing:-1.35px;
    color:#fff;
    white-space:nowrap;
}
.fp-brand-word span{color:#ff5a2f}
.header-right{display:flex;align-items:center;gap:10px;color:#b8b8b5;font-size:14px}
.header-login{
    color:#fff;font-weight:700;text-decoration:none;
    display:inline-flex;align-items:center;gap:6px;
}
.header-login:hover{color:#ff5a2f}
.header-login i{font-size:12px}

/* ---------------- INTRO ---------------- */
.signup-intro{
    width:min(1320px,calc(100% - 44px));
    margin:0 auto;
    padding:64px 0 44px;
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:50px;
}
.intro-copy{max-width:720px}
.eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--orange);
    font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
    margin-bottom:16px;
}
.eyebrow span{width:7px;height:7px;border-radius:50%;background:var(--orange)}
.intro-copy h1{
    margin:0;
    font-family:Manrope,Arial,sans-serif;
    font-size:clamp(42px,5.2vw,76px);
    line-height:.99;
    letter-spacing:-.065em;
    font-weight:800;
}
.intro-copy h1 em{font-style:normal;color:var(--orange)}
.intro-copy p{
    max-width:650px;
    margin:24px 0 0;
    color:var(--muted);
    font-size:17px;
    line-height:1.75;
}
.intro-trust{
    display:flex;align-items:center;gap:15px;
    padding-bottom:8px;
}
.trust-item{display:flex;flex-direction:column;gap:3px;min-width:110px}
.trust-item strong{
    font-family:"DM Mono",monospace;font-size:11px;color:var(--orange);letter-spacing:.08em
}
.trust-item span{font-size:13px;font-weight:700;color:var(--ink-2)}
.trust-line{width:30px;height:1px;background:var(--line)}

/* ---------------- ALERT ---------------- */
.signup-alert{
    width:min(1320px,calc(100% - 44px));
    margin:0 auto 24px;
    padding:15px 18px;
    display:flex;align-items:flex-start;gap:12px;
    border:1px solid #f0c4bd;
    border-radius:16px;
    background:#fff7f5;
    color:#8e3027;
    font-size:14px;
}
.signup-alert strong{display:block;margin-bottom:2px}
.alert-icon{font-size:18px;line-height:1.3}

/* ---------------- MAIN ---------------- */
.signup-main{
    width:min(1320px,calc(100% - 44px));
    margin:0 auto 64px;
    display:grid;
    grid-template-columns:310px minmax(0,1fr);
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    background:#fff;
    box-shadow:var(--shadow);
}
.onboarding-rail{
    background:var(--ink);
    color:#fff;
    padding:34px 28px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    min-height:820px;
    position:relative;
    overflow:hidden;
}
.onboarding-rail:after{
    content:"";
    position:absolute;
    width:240px;height:240px;
    right:-130px;bottom:-100px;
    border-radius:50%;
    border:1px solid rgba(242,107,33,.35);
    box-shadow:0 0 0 35px rgba(242,107,33,.035),0 0 0 70px rgba(242,107,33,.02);
}
.rail-label{
    color:#9f9d96;font-size:11px;font-weight:800;letter-spacing:.14em;
    margin-bottom:26px;
}
.rail-step{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:38px 1fr;
    gap:13px;
    padding:14px 10px;
    margin:3px -10px;
    border-radius:14px;
    color:#8f8d86;
    transition:.2s ease;
}
.rail-step.active{
    color:#fff;
    background:rgba(255,255,255,.055);
}
.rail-step.done{color:#d7d5ce}
.rail-number{
    font-family:"DM Mono",monospace;
    font-size:11px;
    color:#74726c;
    padding-top:2px;
}
.rail-step.active .rail-number{color:var(--orange)}
.rail-step b{display:block;font-size:14px;font-weight:700}
.rail-step small{display:block;margin-top:3px;font-size:12px;line-height:1.45;color:#77756f}
.rail-step.active small{color:#aaa8a0}
.rail-bottom{
    position:relative;z-index:2;
    display:flex;gap:12px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.1);
}
.rail-mark{
    width:34px;height:34px;flex:0 0 34px;
    border:1px solid rgba(242,107,33,.4);
    border-radius:10px;
    display:grid;place-items:center;color:var(--orange);
}
.rail-bottom strong{display:block;font-size:13px}
.rail-bottom p{margin:5px 0 0;color:#8e8c85;font-size:12px;line-height:1.55}

/* ---------------- CARD ---------------- */
.signup-card{min-width:0;background:#fff}
.card-progress{
    padding:25px 42px 20px;
    border-bottom:1px solid var(--line);
}
.progress-meta{
    display:flex;justify-content:space-between;align-items:center;
    color:var(--ink);font-size:13px;font-weight:800;
}
.progress-meta span:last-child{
    color:var(--muted);font-family:"DM Mono",monospace;font-size:11px;font-weight:500;
}
.progress-track{
    height:4px;background:#eeeDE8;border-radius:99px;margin-top:14px;overflow:hidden
}
.progress-track span{
    display:block;width:25%;height:100%;
    background:linear-gradient(90deg,var(--orange),var(--orange-2));
    border-radius:inherit;transition:width .35s ease;
}
.form-body{padding:42px}
.form-step{display:none;animation:stepIn .3s ease}
.form-step.active{display:block}
@keyframes stepIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.step-heading{
    display:flex;gap:18px;align-items:flex-start;margin-bottom:32px
}
.step-index{
    font-family:"DM Mono",monospace;
    color:var(--orange);font-size:12px;font-weight:500;
    padding-top:7px;
}
.section-label{
    color:var(--muted-2);font-size:11px;font-weight:800;letter-spacing:.13em;
    margin-bottom:7px;
}
.step-heading h2{
    margin:0;
    font-family:Manrope,Arial,sans-serif;
    font-size:32px;line-height:1.08;letter-spacing:-.045em;font-weight:800;
}
.step-heading p{
    margin:12px 0 0;color:var(--muted);font-size:15px;line-height:1.65
}

/* ---------------- PLANS ---------------- */
.billing-row{
    display:flex;justify-content:space-between;align-items:center;gap:20px;
    margin-bottom:22px;padding:16px 18px;
    border:1px solid var(--line);border-radius:15px;background:#fafaf8;
}
.billing-row strong{display:block;font-size:14px}
.billing-row > div:first-child span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.billing-switch{
    display:flex;padding:4px;border:1px solid var(--line);background:#fff;border-radius:11px;gap:3px
}
.billing-option{
    border:0;background:transparent;border-radius:8px;padding:8px 13px;
    color:var(--muted);font-size:13px;font-weight:700
}
.billing-option.active{background:var(--ink);color:#fff}
.billing-option span{
    margin-left:5px;padding:3px 5px;border-radius:99px;
    color:var(--green);background:var(--green-soft);font-size:9px
}
.billing-option.active span{color:#b8f0d5;background:rgba(255,255,255,.1)}

.plan-grid{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px
}
.plan-card{
    position:relative;text-align:left;
    border:1px solid var(--line);background:#fff;
    border-radius:17px;padding:19px;
    min-height:220px;
    color:var(--ink);
    transition:.22s ease;
}
.plan-card:hover{
    transform:translateY(-3px);
    border-color:#d6d2ca;
    box-shadow:0 15px 30px rgba(17,17,15,.07)
}
.plan-card.selected{
    border-color:var(--orange);
    box-shadow:0 0 0 3px rgba(242,107,33,.09),0 16px 34px rgba(17,17,15,.07)
}
.plan-card.selected:before{
    content:"";position:absolute;left:-1px;top:18px;bottom:18px;width:3px;
    border-radius:0 4px 4px 0;background:var(--orange)
}
.popular-badge{
    position:absolute;top:-10px;right:14px;
    padding:5px 8px;border-radius:99px;
    background:var(--orange);color:#fff;
    font-size:9px;font-weight:800;letter-spacing:.07em
}
.plan-top{display:flex;justify-content:space-between;gap:10px;align-items:center}
.plan-name{font-family:Manrope,Arial,sans-serif;font-size:16px;font-weight:800}
.plan-check{
    width:21px;height:21px;border-radius:50%;display:grid;place-items:center;
    border:1px solid #d7d4cc;color:transparent;font-size:12px
}
.plan-card.selected .plan-check{background:var(--orange);border-color:var(--orange);color:#fff}
.plan-description{
    display:block;color:var(--muted);font-size:12px;line-height:1.5;
    margin-top:8px;min-height:37px
}
.plan-price{
    display:block;margin-top:18px;white-space:nowrap
}
.price-value{
    font-family:Manrope,Arial,sans-serif;font-size:28px;font-weight:800;letter-spacing:-.05em
}
.price-period{font-size:12px;color:var(--muted)}
.plan-yearly{display:block;margin-top:3px;color:var(--muted);font-size:11px}
.plan-trial{display:block;margin-top:8px;color:var(--green);font-size:11px;font-weight:700}
.plan-trial i{margin-right:3px}
.plan-select-label{
    position:absolute;left:19px;bottom:16px;
    color:var(--muted);font-size:11px;font-weight:700
}
.plan-select-label i{margin-left:4px}
.plan-card.selected .plan-select-label{color:var(--orange)}
.selection-note{
    margin-top:13px;color:var(--muted);font-size:13px;display:flex;gap:7px;align-items:center
}
.selection-note i{color:var(--orange)}

/* ---------------- FIELDS ---------------- */
.field-panel{
    border:1px solid var(--line);border-radius:17px;padding:23px;background:#fcfcfa
}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 17px}
.field-wide{grid-column:1/-1}
.field label{
    display:block;margin-bottom:8px;
    font-size:13px;font-weight:800;color:#3e3d38
}
.field label span{color:var(--orange)}
.field-input{position:relative}
.field-input>i{
    position:absolute;left:14px;top:50%;transform:translateY(-50%);
    color:#9a988f;font-size:16px;z-index:2
}
.form-control,.form-select{
    width:100%;height:50px;border:1px solid #ddd9d0;border-radius:11px;
    background:#fff;color:var(--ink);font-size:14px;padding:0 14px;
    outline:none;transition:.18s ease;box-shadow:none
}
.field-input .form-control{padding-left:41px}
.form-control::placeholder{color:#b2b0a9}
.form-control:focus,.form-select:focus{
    border-color:var(--orange);
    box-shadow:0 0 0 4px rgba(242,107,33,.08)
}
.field small{
    display:block;color:#99978f;font-size:11px;margin-top:6px;line-height:1.5
}
.muted-input .form-control{background:#f5f4f0;color:#76736c}
.password-wrap{position:relative}
.password-wrap .form-control{padding-right:48px}
.password-toggle{
    position:absolute;right:8px;top:8px;width:34px;height:34px;
    border:0;background:transparent;color:#85827a;border-radius:8px
}
.password-toggle:hover{background:#f3f2ee;color:var(--ink)}
.strength-track{height:4px;background:#e9e7e1;border-radius:99px;overflow:hidden;margin-top:9px}
.strength-track span{display:block;width:0;height:100%;background:var(--red);transition:.25s ease}
.security-strip,.micro-note{
    margin-top:17px;padding:14px 16px;border:1px solid var(--line);border-radius:13px;
    display:flex;gap:11px;background:#fafaf8
}
.security-strip>span,.micro-note>i{color:var(--orange);font-size:18px}
.security-strip strong{font-size:13px}
.security-strip p{margin:3px 0 0;color:var(--muted);font-size:12px}
.micro-note{align-items:center;color:var(--muted);font-size:12px}
.micro-note i{font-size:15px}

/* ---------------- REVIEW ---------------- */
.review-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px;align-items:start}
.review-summary{border:1px solid var(--line);border-radius:17px;overflow:hidden}
.summary-section{position:relative;padding:20px;border-bottom:1px solid var(--line)}
.summary-section:last-child{border-bottom:0}
.summary-label{font-size:10px;font-weight:800;letter-spacing:.13em;color:var(--muted-2);margin-bottom:11px}
.summary-plan{display:flex;justify-content:space-between;align-items:center;gap:10px}
.summary-plan strong{font-family:Manrope,Arial,sans-serif;font-size:18px}
.summary-plan span:not(.summary-edit){display:block;color:var(--muted);font-size:12px;margin-top:3px}
.summary-edit{
    color:var(--orange);font-size:11px;font-weight:800;cursor:pointer
}
.summary-rows{display:grid;gap:9px}
.summary-rows>div{display:flex;justify-content:space-between;gap:15px}
.summary-rows span{color:var(--muted);font-size:13px}
.summary-rows strong{font-size:13px;text-align:right;max-width:60%;overflow-wrap:anywhere}
.summary-section>.summary-edit{position:absolute;right:20px;top:20px}
.checkout-panel{
    border-radius:17px;background:var(--ink);color:#fff;padding:24px;
    box-shadow:0 18px 38px rgba(17,17,15,.15)
}
.checkout-label{font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.1em;color:#a8a59d}
.checkout-price{font-family:Manrope,Arial,sans-serif;font-size:34px;font-weight:800;letter-spacing:-.05em;margin-top:8px}
.checkout-cycle{color:#a8a59d;font-size:12px;line-height:1.5;margin-top:3px}
.checkout-divider{height:1px;background:rgba(255,255,255,.1);margin:21px 0}
.checkout-item{display:flex;gap:9px;align-items:center;margin:11px 0;color:#ddd9d0;font-size:13px}
.checkout-item i{color:var(--orange)}
.checkout-support{
    margin-top:23px;padding-top:15px;border-top:1px solid rgba(255,255,255,.1);
    color:#99968e;font-size:11px;line-height:1.6
}
.checkout-support a{display:block;color:#fff;text-decoration:none;font-weight:700;font-size:13px;margin-top:2px}
.terms-panel{
    margin-top:17px;padding:14px 16px;border:1px solid var(--line);border-radius:13px;background:#fff
}
.terms-panel label{display:flex;align-items:flex-start;gap:10px;color:var(--muted);font-size:12px;line-height:1.55;cursor:pointer}
.terms-panel input{position:absolute;opacity:0;pointer-events:none}
.custom-check{
    width:18px;height:18px;flex:0 0 18px;border:1px solid #ccc8bf;border-radius:5px;background:#fff;position:relative
}
.terms-panel input:checked + .custom-check{background:var(--orange);border-color:var(--orange)}
.terms-panel input:checked + .custom-check:after{
    content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;
    border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)
}
.terms-panel a{color:var(--orange);font-weight:700;text-decoration:none}
.payment-explainer{
    margin-top:12px;display:flex;gap:10px;align-items:flex-start;
    color:var(--muted);font-size:11px;line-height:1.55
}
.payment-explainer>i{color:var(--orange);font-size:15px}
.payment-explainer strong{display:block;color:#55534d;font-size:12px;margin-bottom:2px}
.payment-explainer p{margin:0}

/* ---------------- NAV ---------------- */
.form-navigation{
    min-height:78px;padding:16px 42px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;gap:14px;background:#fff
}
.nav-back,.nav-next,.nav-submit{
    height:46px;border-radius:11px;font-size:13px;font-weight:800;
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    transition:.18s ease
}
.nav-back{
    border:1px solid var(--line);background:#fff;color:#55534d;padding:0 16px
}
.nav-back:hover{border-color:#c9c5bc;color:var(--ink)}
.nav-status{
    margin-left:auto;margin-right:auto;display:flex;align-items:center;gap:7px;
    color:#99968e;font-size:11px
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:#c4c1b9}
.nav-next,.nav-submit{
    border:0;background:var(--orange);color:#fff;padding:0 20px;
    box-shadow:0 8px 20px rgba(242,107,33,.2)
}
.nav-next:hover,.nav-submit:hover{background:#df5d18;transform:translateY(-1px)}
.nav-next:disabled,.nav-submit:disabled{opacity:.6;cursor:not-allowed;transform:none}
.d-none{display:none!important}

/* ---------------- FOOTER ---------------- */
.signup-footer{
    width:min(1320px,calc(100% - 44px));
    margin:0 auto;
    border-top:1px solid var(--line);
    padding:30px 0 25px;
}
.footer-main{display:flex;justify-content:space-between;gap:30px;align-items:center}
.footer-brand p{margin:8px 0 0;color:var(--muted);font-size:12px}
.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:20px}
.footer-links a{color:var(--muted);text-decoration:none;font-size:12px}
.footer-links a:hover{color:var(--orange)}
.footer-bottom{
    display:flex;justify-content:space-between;gap:20px;
    margin-top:24px;padding-top:17px;border-top:1px solid var(--line);
    color:#a09d95;font-size:11px
}

/* ---------------- RESPONSIVE ---------------- */
@media(max-width:1100px){
    .signup-main{grid-template-columns:245px minmax(0,1fr)}
    .form-body{padding:34px}
    .card-progress,.form-navigation{padding-left:34px;padding-right:34px}
    .plan-grid{grid-template-columns:repeat(2,1fr)}
    .intro-trust{display:none}
}
@media(max-width:820px){
    .signup-intro{padding-top:44px}
    .signup-main{grid-template-columns:1fr}
    .onboarding-rail{
        min-height:auto;padding:20px 22px
    }
    .rail-top{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
    .rail-label{grid-column:1/-1;margin-bottom:6px}
    .rail-step{display:block;margin:0;padding:10px 8px}
    .rail-step b{font-size:12px}
    .rail-step small{display:none}
    .rail-number{display:block;margin-bottom:4px}
    .rail-bottom{display:none}
    .review-layout{grid-template-columns:1fr}
}
@media(max-width:650px){
    body{font-size:14px}
    .signup-header-inner,.signup-intro,.signup-main,.signup-alert,.signup-footer{
        width:min(100% - 24px,1320px)
    }
    .signup-header-inner{min-height:68px}
    .header-question{display:none}
    .fp-brand-word{font-size:24px;letter-spacing:-1px}
    .fp-brand-symbol{width:29px;height:37px;gap:4px;flex-basis:29px}
    .fp-brand-symbol i{width:7px;flex-basis:7px}
    .fp-brand-symbol i:nth-child(1){height:18px}
    .fp-brand-symbol i:nth-child(2){height:27px}
    .fp-brand-symbol i:nth-child(3){height:37px}
    .signup-intro{padding:34px 0 28px}
    .intro-copy h1{font-size:42px}
    .intro-copy p{font-size:15px}
    .onboarding-rail{padding:15px 10px}
    .rail-top{gap:3px}
    .rail-step{padding:9px 5px}
    .rail-step b{font-size:10px;line-height:1.25}
    .rail-number{font-size:9px}
    .card-progress{padding:18px 18px}
    .form-body{padding:26px 18px}
    .step-heading{gap:12px;margin-bottom:24px}
    .step-heading h2{font-size:27px}
    .step-heading p{font-size:14px}
    .step-index{font-size:10px}
    .billing-row{align-items:flex-start;flex-direction:column}
    .billing-switch{width:100%}
    .billing-option{flex:1}
    .plan-grid{grid-template-columns:1fr}
    .plan-card{min-height:200px}
    .field-grid{grid-template-columns:1fr;gap:18px}
    .field-wide{grid-column:auto}
    .form-navigation{padding:13px 18px;min-height:70px}
    .nav-status{display:none}
    .nav-back{padding:0 14px}
    .nav-next,.nav-submit{margin-left:auto;padding:0 17px}
    .footer-main,.footer-bottom{flex-direction:column;align-items:flex-start}
    .footer-links{justify-content:flex-start;gap:12px 17px}
}

/* =========================================================
   COUPON
========================================================= */
.coupon-panel {
    margin-top: 18px;
    padding: 16px 18px;
    border: 1px solid rgba(17, 17, 15, .10);
    border-radius: 16px;
    background: #fafaf7;
}

.coupon-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 11px;
}

.coupon-heading strong {
    display: block;
    font-size: 13px;
    font-weight: 800;
}

.coupon-heading span {
    display: block;
    margin-top: 2px;
    font-size: 11px;
    color: #77766f;
}

.coupon-heading > i {
    font-size: 20px;
}

.coupon-row {
    display: flex;
    gap: 8px;
}

.coupon-row input {
    flex: 1;
    min-width: 0;
    height: 42px;
    padding: 0 13px;
    border: 1px solid rgba(17, 17, 15, .14);
    border-radius: 10px;
    background: #fff;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    outline: none;
}

.coupon-row input:focus {
    border-color: #11110f;
}

.coupon-row button {
    height: 42px;
    padding: 0 18px;
    border: 0;
    border-radius: 10px;
    background: #11110f;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
}

.coupon-row button:disabled {
    opacity: .55;
    cursor: wait;
}

.coupon-message {
    min-height: 18px;
    margin-top: 8px;
    font-size: 11px;
    font-weight: 700;
}

.coupon-message.success {
    color: #16845b;
}

.coupon-message.error {
    color: #c94132;
}

@media (max-width: 640px) {
    .coupon-row {
        flex-direction: column;
    }

    .coupon-row button {
        width: 100%;
    }
}