feat: payment method selector with foldable card form

Checkout shows payment method tiles (Card, Bancontact, iDEAL,
Apple Pay, SEPA DD, Bank Transfer). Card selection expands the
embedded form; other methods redirect to Mollie hosted checkout
with the method pre-selected.

components/checkout/PaymentForm.tsx

@@ -3,9 +3,10 @@
 import { useEffect, useRef, useState } from 'react'
 import { useRouter } from 'next/navigation'
 import Script from 'next/script'
-import { Lock, ShieldCheck } from '@phosphor-icons/react'
+import { motion, AnimatePresence } from 'framer-motion'
+import { CreditCard, Lock, ShieldCheck, Bank } from '@phosphor-icons/react'
 import { initMollie, getMollie, MOLLIE_FIELD_STYLES, type MollieComponent } from '@/lib/mollie'
-import { createEmbeddedCheckout } from '@/lib/api/billing'
+import { createEmbeddedCheckout, createCheckoutSession } from '@/lib/api/billing'
 
 interface PaymentFormProps {
   plan: string
@@ -15,12 +16,56 @@ interface PaymentFormProps {
   vatId: string
 }
 
+const PAYMENT_METHODS: Array<{ id: string; label: string; description?: string; icon: string }> = [
+  { id: 'card', label: 'Card', description: 'Visa, Mastercard, Amex', icon: 'card' },
+  { id: 'bancontact', label: 'Bancontact', icon: 'bancontact' },
+  { id: 'ideal', label: 'iDEAL', icon: 'ideal' },
+  { id: 'applepay', label: 'Apple Pay', icon: 'applepay' },
+  { id: 'directdebit', label: 'SEPA Direct Debit', icon: 'sepa' },
+  { id: 'banktransfer', label: 'Bank Transfer', icon: 'banktransfer' },
+]
+
+function MethodIcon({ type, className }: { type: string; className?: string }) {
+  const cn = className || 'h-6 w-6'
+  switch (type) {
+    case 'card':
+      return <CreditCard weight="duotone" className={cn} />
+    case 'bancontact':
+      return (
+        <svg viewBox="0 0 24 24" fill="none" className={cn}>
+          <rect x="2" y="4" width="20" height="16" rx="3" stroke="currentColor" strokeWidth="1.5" />
+          <path d="M7 12h4m2 0h4" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" />
+          <circle cx="12" cy="12" r="2" fill="currentColor" opacity="0.5" />
+        </svg>
+      )
+    case 'ideal':
+      return (
+        <svg viewBox="0 0 24 24" fill="none" className={cn}>
+          <rect x="3" y="3" width="18" height="18" rx="4" stroke="currentColor" strokeWidth="1.5" />
+          <path d="M9 8v8m3-8v8m3-8v8" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" />
+        </svg>
+      )
+    case 'applepay':
+      return (
+        <svg viewBox="0 0 24 24" fill="currentColor" className={cn}>
+          <path d="M17.05 12.54c-.02-2.1 1.73-3.12 1.81-3.17-1-1.44-2.54-1.64-3.08-1.66-1.3-.14-2.57.78-3.23.78-.68 0-1.7-.76-2.8-.74-1.43.02-2.77.85-3.5 2.14-1.52 2.6-.39 6.43 1.07 8.54.73 1.03 1.58 2.19 2.7 2.15 1.1-.04 1.5-.7 2.82-.7 1.3 0 1.67.7 2.8.67 1.17-.02 1.9-1.04 2.6-2.08.84-1.2 1.18-2.37 1.19-2.43-.03-.01-2.27-.86-2.29-3.43l-.09-.07zM14.95 5.89c.58-.73.98-1.72.87-2.73-.84.04-1.9.58-2.5 1.28-.54.63-1.02 1.66-.9 2.63.95.07 1.93-.48 2.53-1.18z" />
+        </svg>
+      )
+    case 'sepa':
+    case 'banktransfer':
+      return <Bank weight="duotone" className={cn} />
+    default:
+      return <CreditCard weight="duotone" className={cn} />
+  }
+}
+
 const mollieFieldBase =
   'w-full rounded-lg border border-neutral-700 bg-neutral-800/50 px-3 py-3 h-[48px] transition-all focus-within:ring-1 focus-within:ring-brand-orange focus-within:border-brand-orange'
 
 export default function PaymentForm({ plan, interval, limit, country, vatId }: PaymentFormProps) {
   const router = useRouter()
 
+  const [selectedMethod, setSelectedMethod] = useState('card')
   const [mollieReady, setMollieReady] = useState(false)
   const [mollieError, setMollieError] = useState(false)
   const [formError, setFormError] = useState<string | null>(null)
@@ -34,14 +79,14 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
     expiryDate: null,
     verificationCode: null,
   })
+  const mollieInitialized = useRef(false)
 
   const [scriptLoaded, setScriptLoaded] = useState(false)
 
-  // Mount Mollie components AFTER both script loaded AND DOM elements exist
+  // Mount Mollie components AFTER script loaded
   useEffect(() => {
-    if (!scriptLoaded) return
+    if (!scriptLoaded || mollieInitialized.current) return
 
-    // Small delay to ensure DOM elements are painted
     const timer = setTimeout(() => {
       const mollie = initMollie()
       if (!mollie) {
@@ -79,6 +124,7 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
           componentsRef.current[type] = component
         }
 
+        mollieInitialized.current = true
         setMollieReady(true)
       } catch (err) {
         console.error('Mollie mount error:', err)
@@ -99,22 +145,26 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
   }, [])
 
   const handleSubmit = async (e: React.FormEvent) => {
-    setSubmitted(true)
     e.preventDefault()
+    setSubmitted(true)
     setFormError(null)
+
     if (!country) {
       setFormError('Please select your country')
       return
     }
 
+    setSubmitting(true)
+
+    try {
+      if (selectedMethod === 'card') {
         const mollie = getMollie()
         if (!mollie) {
           setFormError('Payment system not loaded. Please refresh.')
+          setSubmitting(false)
           return
         }
 
-    setSubmitting(true)
-    try {
         const { token, error } = await mollie.createToken()
         if (error || !token) {
           setFormError(error?.message || 'Invalid card details.')
@@ -124,7 +174,7 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
 
         const result = await createEmbeddedCheckout({
           plan_id: plan,
-        interval: interval,
+          interval,
           limit,
           country,
           vat_id: vatId || undefined,
@@ -134,6 +184,17 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
         if (result.status === 'success') router.push('/checkout?status=success')
         else if (result.status === 'pending' && result.redirect_url)
           window.location.href = result.redirect_url
+      } else {
+        const result = await createCheckoutSession({
+          plan_id: plan,
+          interval,
+          limit,
+          country,
+          vat_id: vatId || undefined,
+          method: selectedMethod,
+        })
+        window.location.href = result.url
+      }
     } catch (err) {
       setFormError((err as Error)?.message || 'Payment failed. Please try again.')
     } finally {
@@ -141,6 +202,8 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
     }
   }
 
+  const isCard = selectedMethod === 'card'
+
   return (
     <>
       <Script
@@ -153,40 +216,71 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
         onSubmit={handleSubmit}
         className="rounded-2xl border border-neutral-800 bg-neutral-900/50 backdrop-blur-xl p-6"
       >
-        <h2 className="text-lg font-semibold text-white mb-6">Payment details</h2>
+        <h2 className="text-lg font-semibold text-white mb-4">Payment method</h2>
 
+        {/* Payment method grid */}
+        <div className="grid grid-cols-3 gap-2 mb-5">
+          {PAYMENT_METHODS.map((method) => {
+            const isSelected = selectedMethod === method.id
+            return (
+              <button
+                key={method.id}
+                type="button"
+                onClick={() => { setSelectedMethod(method.id); setFormError(null) }}
+                className={`relative flex flex-col items-center gap-1.5 rounded-xl border px-3 py-3.5 text-xs font-medium transition-all duration-200 ${
+                  isSelected
+                    ? 'border-brand-orange bg-brand-orange/5 text-white'
+                    : 'border-neutral-700/50 bg-neutral-800/30 text-neutral-400 hover:border-neutral-600 hover:text-neutral-300'
+                }`}
+              >
+                <MethodIcon type={method.icon} className="h-5 w-5" />
+                <span>{method.label}</span>
+                {method.description && (
+                  <span className="text-[10px] text-neutral-500 font-normal">{method.description}</span>
+                )}
+              </button>
+            )
+          })}
+        </div>
+
+        {/* Card form — always rendered for Mollie mount, animated visibility */}
+        <div
+          className="overflow-hidden transition-all duration-300 ease-out"
+          style={{ maxHeight: isCard ? '400px' : '0px', opacity: isCard ? 1 : 0 }}
+        >
+          <div className="space-y-4 pb-1">
             {/* Cardholder name */}
-        <div className="mb-4">
+            <div>
               <label className="block text-sm font-medium text-neutral-300 mb-1.5">Cardholder name</label>
               <div className="overflow-hidden transition-all duration-300" style={{ height: mollieReady ? '48px' : '0px' }}>
                 <div id="mollie-card-holder" className={mollieFieldBase} />
               </div>
-          {!mollieReady && <div className={`${mollieFieldBase} bg-neutral-800/30`} />}
+              {!mollieReady && isCard && <div className={`${mollieFieldBase} bg-neutral-800/30 animate-pulse`} />}
               {submitted && cardErrors.cardHolder && (
                 <p className="mt-1 text-xs text-red-400">{cardErrors.cardHolder}</p>
               )}
             </div>
 
             {/* Card number */}
-        <div className="mb-4">
+            <div>
               <label className="block text-sm font-medium text-neutral-300 mb-1.5">Card number</label>
               <div className="overflow-hidden transition-all duration-300" style={{ height: mollieReady ? '48px' : '0px' }}>
                 <div id="mollie-card-number" className={mollieFieldBase} />
               </div>
-          {!mollieReady && <div className={`${mollieFieldBase} bg-neutral-800/30`} />}
+              {!mollieReady && isCard && <div className={`${mollieFieldBase} bg-neutral-800/30 animate-pulse`} />}
               {submitted && cardErrors.cardNumber && (
                 <p className="mt-1 text-xs text-red-400">{cardErrors.cardNumber}</p>
               )}
             </div>
 
             {/* Expiry & CVC */}
-        <div className="mb-4 grid grid-cols-2 gap-4">
+            <div className="grid grid-cols-2 gap-4">
               <div>
                 <label className="block text-sm font-medium text-neutral-300 mb-1.5">Expiry date</label>
                 <div className="overflow-hidden transition-all duration-300" style={{ height: mollieReady ? '48px' : '0px' }}>
                   <div id="mollie-card-expiry" className={mollieFieldBase} />
                 </div>
-            {!mollieReady && <div className={`${mollieFieldBase} bg-neutral-800/30`} />}
+                {!mollieReady && isCard && <div className={`${mollieFieldBase} bg-neutral-800/30 animate-pulse`} />}
                 {submitted && cardErrors.expiryDate && (
                   <p className="mt-1 text-xs text-red-400">{cardErrors.expiryDate}</p>
                 )}
@@ -196,12 +290,29 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
                 <div className="overflow-hidden transition-all duration-300" style={{ height: mollieReady ? '48px' : '0px' }}>
                   <div id="mollie-card-cvc" className={mollieFieldBase} />
                 </div>
-            {!mollieReady && <div className={`${mollieFieldBase} bg-neutral-800/30`} />}
+                {!mollieReady && isCard && <div className={`${mollieFieldBase} bg-neutral-800/30 animate-pulse`} />}
                 {submitted && cardErrors.verificationCode && (
                   <p className="mt-1 text-xs text-red-400">{cardErrors.verificationCode}</p>
                 )}
               </div>
             </div>
+          </div>
+        </div>
+
+        {/* Non-card info */}
+        <AnimatePresence>
+          {!isCard && (
+            <motion.p
+              initial={{ opacity: 0, height: 0 }}
+              animate={{ opacity: 1, height: 'auto' }}
+              exit={{ opacity: 0, height: 0 }}
+              transition={{ duration: 0.2 }}
+              className="text-sm text-neutral-400 mb-4 overflow-hidden"
+            >
+              You&apos;ll be redirected to complete payment securely via {PAYMENT_METHODS.find((m) => m.id === selectedMethod)?.label}.
+            </motion.p>
+          )}
+        </AnimatePresence>
 
         {/* Form / API errors */}
         {formError && (
@@ -211,23 +322,16 @@ export default function PaymentForm({ plan, interval, limit, country, vatId }: P
         )}
 
         {/* Mollie fallback */}
-        {mollieError && (
+        {mollieError && isCard && (
           <div className="mb-4 rounded-lg bg-yellow-500/10 border border-yellow-500/20 px-4 py-3 text-sm text-yellow-400">
-            Card fields could not load.{' '}
+            Card fields could not load. Please select another payment method.
-            <a
-              href={`/checkout?plan=${plan}&interval=${interval}&limit=${limit}&fallback=1`}
-              className="underline hover:text-yellow-300"
-            >
-              Use the hosted checkout instead
-            </a>
-            .
           </div>
         )}
 
         {/* Submit */}
         <button
           type="submit"
-          disabled={submitting || !mollieReady}
+          disabled={submitting || (isCard && !mollieReady && !mollieError)}
           className="w-full rounded-lg bg-brand-orange px-4 py-3 text-sm font-semibold text-white transition-colors hover:bg-brand-orange/90 disabled:opacity-50 disabled:cursor-not-allowed"
         >
           {submitting ? 'Processing...' : 'Start free trial'}

lib/api/billing.ts

@@ -74,6 +74,7 @@ export interface CreateCheckoutParams {
   limit: number
   country: string
   vat_id?: string
+  method?: string
 }
 
 export async function createCheckoutSession(params: CreateCheckoutParams): Promise<{ url: string }> {