'use client';

import { useState } from 'react';

const FAQS = [
  {
    q: 'Is this a sportsbook?',
    a: 'No. We don\'t take bets. We grade props so you make better ones. VYNDR is an analytics platform — you bring the prop, we show you every angle on it.',
  },
  {
    q: 'How accurate is the model?',
    a: 'Check the ledger. Every grade, every result, updated nightly. We don\'t hide misses. Brier score and CLV are tracked from day one and published.',
  },
  {
    q: 'What sports do you cover?',
    a: 'NBA, MLB, and WNBA at launch. NFL is targeted for September 2026. Each sport has its own calibrated weights and sport-specific factor models.',
  },
  {
    q: 'Can I cancel anytime?',
    a: 'Yes. No contracts. No cancellation fees. No guilt-trip retention emails. Your access continues through the end of the billing period.',
  },
  {
    q: 'What is the Founder Access price?',
    a: 'First 100 users lock $14.99/mo for life. After that the price moves to $24.99/mo and never comes back to $14.99. Locked-in pricing carries if you maintain continuous subscription.',
  },
  {
    q: 'How is payment processed?',
    a: 'We use NexaPay. You pay with Visa, Mastercard, Apple Pay, or Google Pay. We never see your card data. We are PCI-out-of-scope.',
  },
];

export default function FAQ() {
  const [open, setOpen] = useState<number | null>(0);

  return (
    <section
      style={{
        padding: '96px 24px',
        borderTop: '1px solid var(--border)',
      }}
    >
      <div style={{ maxWidth: 760, margin: '0 auto' }}>
        <header style={{ textAlign: 'center', marginBottom: 48 }}>
          <h2
            style={{
              fontSize: 'clamp(28px, 4vw, 44px)',
              fontWeight: 700,
              letterSpacing: '-0.02em',
              marginBottom: 16,
            }}
          >
            Questions, answered.
          </h2>
        </header>

        <div style={{ display: 'grid', gap: 8 }}>
          {FAQS.map((faq, i) => {
            const isOpen = open === i;
            return (
              <div
                key={faq.q}
                className="surface"
                style={{
                  padding: 0,
                  overflow: 'hidden',
                  transition: 'border-color 200ms ease',
                  borderColor: isOpen ? 'var(--border-focus)' : 'var(--border)',
                }}
              >
                <button
                  onClick={() => setOpen(isOpen ? null : i)}
                  aria-expanded={isOpen}
                  style={{
                    width: '100%',
                    padding: '18px 24px',
                    background: 'transparent',
                    border: 'none',
                    color: 'var(--text-primary)',
                    fontFamily: 'inherit',
                    fontSize: 15,
                    fontWeight: 600,
                    textAlign: 'left',
                    cursor: 'pointer',
                    display: 'flex',
                    justifyContent: 'space-between',
                    alignItems: 'center',
                    gap: 16,
                  }}
                >
                  <span>{faq.q}</span>
                  <span
                    aria-hidden
                    style={{
                      color: 'var(--text-tertiary)',
                      fontSize: 18,
                      transform: isOpen ? 'rotate(45deg)' : 'rotate(0)',
                      transition: 'transform 200ms ease',
                    }}
                  >
                    +
                  </span>
                </button>
                {isOpen && (
                  <div
                    style={{
                      padding: '0 24px 20px',
                      fontSize: 14,
                      color: 'var(--text-secondary)',
                      lineHeight: 1.6,
                    }}
                  >
                    {faq.a}
                  </div>
                )}
              </div>
            );
          })}
        </div>
      </div>
    </section>
  );
}
