<!DOCTYPE html>
<html lang="ko">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>키오스크 적립 - 청춘약국</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700;900&display=swap" rel="stylesheet">
    <style>
        * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

        body {
            font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
            background: #0f0b2e;
            height: 100vh;
            overflow: hidden;
            -webkit-font-smoothing: antialiased;
            user-select: none;
        }

        /* ── 헤더 ── */
        .header {
            background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
            padding: 16px 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .header-logo { color: #fff; font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
        .header-time { color: rgba(255,255,255,0.7); font-size: 15px; }

        /* ── 메인 ── */
        .main {
            height: calc(100vh - 56px);
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 24px;
            position: relative;
            overflow-y: auto;
        }
        .screen { display: none; width: 100%; }
        .screen.active { display: flex; }

        /* ══════════════════════════════════════
           대기 화면 - 슬라이드쇼 + 브랜딩
           ══════════════════════════════════════ */
        .idle-screen {
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
        }

        /* 슬라이드 컨테이너 */
        .slides-wrapper {
            width: 100%;
            max-width: 780px;
            position: relative;
            height: 450px;
            overflow: hidden;
        }
        .slide {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            opacity: 0;
            transform: translateX(60px);
            transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            pointer-events: none;
        }
        .slide.active {
            opacity: 1;
            transform: translateX(0);
            pointer-events: auto;
        }
        .slide.exit {
            opacity: 0;
            transform: translateX(-60px);
        }

        .slide-icon {
            width: 100px;
            height: 100px;
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 52px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.15);
        }
        .slide-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .slide-title {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.8px;
            line-height: 1.3;
        }
        .slide-desc {
            font-size: 23px;
            color: rgba(255,255,255,0.7);
            line-height: 1.6;
            max-width: 520px;
        }
        .slide-highlight {
            display: inline-block;
            padding: 12px 32px;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 14px;
            color: rgba(255,255,255,0.9);
            font-size: 19px;
            font-weight: 600;
            margin-top: 4px;
        }

        /* 슬라이드별 색상 */
        .slide-1 .slide-icon { background: linear-gradient(135deg, #fbbf24, #f59e0b); }
        .slide-1 .slide-tag { background: #fef3c7; color: #92400e; }
        .slide-2 .slide-icon { background: linear-gradient(135deg, #34d399, #10b981); }
        .slide-2 .slide-tag { background: #d1fae5; color: #065f46; }
        .slide-3 .slide-icon { background: linear-gradient(135deg, #60a5fa, #3b82f6); }
        .slide-3 .slide-tag { background: #dbeafe; color: #1e40af; }

        /* 인디케이터 */
        .slide-dots {
            display: flex;
            gap: 10px;
            margin-top: 24px;
        }
        .slide-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255,255,255,0.2);
            transition: all 0.3s;
        }
        .slide-dot.active {
            width: 32px;
            border-radius: 5px;
            background: #8b5cf6;
        }

        /* 브랜딩 영역 */
        .branding {
            margin-top: 32px;
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .branding-divider {
            width: 1px;
            height: 48px;
            background: rgba(255,255,255,0.1);
        }
        .branding-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.4);
            font-size: 13px;
            font-weight: 500;
        }
        .branding-item span.icon {
            font-size: 18px;
        }

        /* ══════════════════════════════════════
           적립 화면
           ══════════════════════════════════════ */
        .claim-screen {
            flex-direction: row;
            gap: 48px;
            align-items: center;
            justify-content: center;
            max-width: 960px;
            margin: 0 auto;
        }
        .claim-left {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 24px;
        }
        .claim-info-card {
            background: #fff;
            border-radius: 20px;
            padding: 28px 36px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            text-align: center;
            width: 100%;
        }
        .claim-amount-label { font-size: 15px; color: #6b7280; margin-bottom: 4px; }
        .claim-amount { font-size: 36px; font-weight: 900; color: #1e1b4b; letter-spacing: -1px; }
        .claim-points { font-size: 20px; color: #6366f1; font-weight: 700; margin-top: 8px; }
        /* 품목 카드 */
        .items-card {
            background: #fff;
            border-radius: 16px;
            padding: 16px 20px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            width: 100%;
            max-height: 200px;
            overflow-y: auto;
        }
        .items-title {
            font-size: 13px;
            font-weight: 700;
            color: #6b7280;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .items-list { display: flex; flex-direction: column; gap: 4px; }
        .item-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #374151;
            padding: 4px 0;
            border-bottom: 1px solid #f3f4f6;
        }
        .item-row:last-child { border-bottom: none; }
        .item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
        .item-qty { color: #9ca3af; font-size: 13px; flex-shrink: 0; }
        .item-total { font-weight: 600; color: #6366f1; flex-shrink: 0; min-width: 60px; text-align: right; }

        .qr-container {
            background: #fff;
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        .qr-container img { width: 200px; height: 200px; }
        .qr-hint { font-size: 15px; color: #6b7280; text-align: center; margin-top: 12px; }

        .divider {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .divider-line { width: 2px; height: 80px; background: #e5e7eb; }
        .divider-text { font-size: 16px; color: #9ca3af; font-weight: 500; }

        .claim-right {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }
        .phone-section-title { font-size: 20px; font-weight: 700; color: #1e1b4b; }

        /* 전화번호 디스플레이 */
        .phone-display-wrap {
            width: 100%;
            max-width: 360px;
            background: #fff;
            border: 3px solid #e5e7eb;
            border-radius: 16px;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: border-color 0.2s;
            min-height: 64px;
        }
        .phone-display-wrap.focus { border-color: #6366f1; }
        .phone-display-wrap.error { border-color: #ef4444; animation: shake 0.3s; }
        .phone-prefix {
            font-size: 28px;
            font-weight: 700;
            color: #9ca3af;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .phone-number {
            font-size: 28px;
            font-weight: 700;
            color: #1e1b4b;
            letter-spacing: 2px;
            margin-left: 2px;
        }
        .phone-number.placeholder { color: #d1d5db; }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-8px); }
            75% { transform: translateX(8px); }
        }

        /* 숫자 패드 */
        .numpad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; width: 100%; max-width: 360px; }
        .numpad-btn {
            background: #fff;
            border: 2px solid #e5e7eb;
            border-radius: 14px;
            padding: 16px;
            font-size: 26px;
            font-weight: 700;
            color: #1e1b4b;
            cursor: pointer;
            transition: all 0.1s;
            font-family: inherit;
        }
        .numpad-btn:active { background: #6366f1; color: #fff; border-color: #6366f1; transform: scale(0.95); }
        .numpad-btn.delete { background: #fef2f2; border-color: #fecaca; color: #ef4444; font-size: 18px; }
        .numpad-btn.delete:active { background: #ef4444; color: #fff; }
        .numpad-btn.clear { background: #f5f5f5; border-color: #d4d4d4; color: #737373; font-size: 14px; }
        .numpad-btn.clear:active { background: #737373; color: #fff; }

        .submit-btn {
            width: 100%;
            max-width: 360px;
            padding: 16px;
            background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
            color: #fff;
            border: none;
            border-radius: 14px;
            font-size: 22px;
            font-weight: 700;
            cursor: pointer;
            font-family: inherit;
            transition: all 0.2s;
        }
        .submit-btn:active { transform: scale(0.97); }
        .submit-btn:disabled { background: #d1d5db; cursor: not-allowed; }

        .error-msg { color: #ef4444; font-size: 14px; font-weight: 500; min-height: 20px; }

        /* ══════════════════════════════════════
           성공 화면
           ══════════════════════════════════════ */
        .success-screen {
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            gap: 20px;
        }
        .success-icon {
            width: 120px; height: 120px;
            background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 60px;
            animation: pop 0.4s ease-out;
        }
        @keyframes pop { 0% { transform: scale(0); } 80% { transform: scale(1.1); } 100% { transform: scale(1); } }
        .success-title { font-size: 36px; font-weight: 900; color: #16a34a; }
        .success-points { font-size: 48px; font-weight: 900; color: #1e1b4b; letter-spacing: -1px; }
        .success-balance { font-size: 20px; color: #6b7280; }
        .success-balance strong { color: #6366f1; font-weight: 700; }
        .success-countdown { font-size: 15px; color: #9ca3af; margin-top: 8px; }

        /* ── 로딩 ── */
        .loading-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.3); display: none; align-items: center; justify-content: center; z-index: 100; }
        .loading-overlay.active { display: flex; }
        .loading-spinner { width: 60px; height: 60px; border: 6px solid #e5e7eb; border-top-color: #6366f1; border-radius: 50%; animation: spin 0.8s linear infinite; }
        @keyframes spin { to { transform: rotate(360deg); } }

        /* ── 적립/성공 화면 배경 밝게 ── */
        .claim-screen, .success-screen { background: #f5f7fa; border-radius: 24px; padding: 32px; }

        /* ── 반응형: 세로 모니터 (portrait, 폭 700px 이상) ── */
        @media (orientation: portrait) and (min-width: 700px) {
            .main { padding: 32px; }

            /* 적립 화면: 세로 스택, 공간 활용 */
            .claim-screen {
                flex-direction: column;
                gap: 24px;
                padding: 32px 48px;
                max-width: 640px;
                align-items: center;
                justify-content: center;
            }
            .claim-left {
                flex-direction: column;
                gap: 16px;
                width: 100%;
                align-items: center;
            }
            .claim-info-card { width: 100%; max-width: 480px; }
            .qr-container { align-self: center; }
            .items-card { width: 100%; max-width: 480px; max-height: 160px; }
            .qr-container img { width: 160px; height: 160px; }

            .divider { flex-direction: row; }
            .divider-line { width: 60px; height: 2px; }

            .claim-right { width: 100%; align-items: center; }
            .phone-display-wrap { max-width: 440px; }
            .phone-prefix { font-size: 30px; }
            .phone-number { font-size: 30px; white-space: nowrap; }
            .numpad { max-width: 440px; }
            .submit-btn { max-width: 440px; }

            /* 슬라이드 더 크게 */
            .slides-wrapper { height: 420px; }
            .slide-icon { width: 110px; height: 110px; font-size: 56px; }
            .slide-title { font-size: 34px; }
            .slide-desc { font-size: 19px; }
            .slide-highlight { font-size: 16px; padding: 12px 32px; }
        }

        /* ── 반응형: 좁은 화면 (모바일) ── */
        @media (max-width: 700px) {
            .claim-screen { flex-direction: column; gap: 24px; padding: 20px; }
            .divider { flex-direction: row; }
            .divider-line { width: 60px; height: 2px; }
            .claim-amount { font-size: 28px; }
            .qr-container img { width: 150px; height: 150px; }
            .branding { flex-direction: column; gap: 12px; }
            .branding-divider { display: none; }
            .slide-title { font-size: 24px; }
            .slides-wrapper { height: 320px; }
        }
    </style>
</head>
<body>

<!-- 헤더 -->
<div class="header">
    <div class="header-logo">청춘약국 마일리지</div>
    <div class="header-time" id="headerTime"></div>
</div>

<!-- 메인 -->
<div class="main">

    <!-- 1. 대기 화면 (슬라이드쇼 + 브랜딩) -->
    <div class="screen idle-screen active" id="idleScreen">
        <div class="slides-wrapper">
            <!-- 슬라이드 1: 동물의약품 -->
            <div class="slide slide-1 active" data-slide="0">
                <div class="slide-icon">🐾</div>
                <div class="slide-tag">반려동물 케어</div>
                <div class="slide-title">우리 아이 약도<br>마일리지로 구매!</div>
                <div class="slide-desc">
                    청춘약국 마일리지로<br>
                    동물의약품을 구매할 수 있어요
                </div>
                <div class="slide-highlight">총 결제금액의 30% 한도 내 사용 가능</div>
            </div>

            <!-- 슬라이드 2: 건기식 -->
            <div class="slide slide-2" data-slide="1">
                <div class="slide-icon">🌿</div>
                <div class="slide-tag">건강기능식품</div>
                <div class="slide-title">팜큐 건강기능식품<br>마일리지로 챙기세요</div>
                <div class="slide-desc">
                    비타민, 유산균, 오메가3 등<br>
                    엄선된 건기식을 포인트로 구매!
                </div>
                <div class="slide-highlight">총 결제금액의 30% 한도 내 사용 가능</div>
            </div>

            <!-- 슬라이드 3: 부외품 -->
            <div class="slide slide-3" data-slide="2">
                <div class="slide-icon">💧</div>
                <div class="slide-tag">약국 용품</div>
                <div class="slide-title">투약병, 부외품도<br>마일리지로 OK</div>
                <div class="slide-desc">
                    물약병, 연고통, 밴드 등<br>
                    필요한 약국 용품을 포인트로!
                </div>
                <div class="slide-highlight">총 결제금액의 30% 한도 내 사용 가능</div>
            </div>
        </div>

        <!-- 인디케이터 -->
        <div class="slide-dots">
            <div class="slide-dot active" data-dot="0"></div>
            <div class="slide-dot" data-dot="1"></div>
            <div class="slide-dot" data-dot="2"></div>
        </div>

        <!-- 브랜딩 -->
        <div class="branding">
            <div class="branding-item"><span class="icon">🤖</span> AI 에이전트 개발 약국</div>
            <div class="branding-divider"></div>
            <div class="branding-item"><span class="icon">💊</span> 복약안내에 진심인 약사</div>
            <div class="branding-divider"></div>
            <div class="branding-item"><span class="icon">📱</span> 모바일 약료 시스템 도입</div>
        </div>
    </div>

    <!-- 2. 적립 화면 -->
    <div class="screen claim-screen" id="claimScreen">
        <div class="claim-left">
            <div class="claim-info-card">
                <div class="claim-amount-label">결제 금액</div>
                <div class="claim-amount" id="claimAmount">0원</div>
                <div class="claim-points">적립 <span id="claimPoints">0</span>P</div>
            </div>
            <div class="items-card" id="itemsCard" style="display:none;">
                <div class="items-title">구매 품목</div>
                <div class="items-list" id="itemsList"></div>
            </div>
            <div class="qr-container" id="qrContainer" style="display:none;">
                <img id="qrImage" src="" alt="QR Code">
                <div class="qr-hint">휴대폰으로 QR을 스캔하여<br>적립할 수도 있습니다</div>
            </div>
        </div>

        <div class="divider" id="dividerEl" style="display:none;">
            <div class="divider-line"></div>
            <div class="divider-text">또는</div>
            <div class="divider-line"></div>
        </div>

        <div class="claim-right">
            <div class="phone-section-title">전화번호로 적립하기</div>
            <div class="phone-display-wrap" id="phoneWrap">
                <span class="phone-prefix">010-</span>
                <span class="phone-number placeholder" id="phoneDisplay">0000-0000</span>
            </div>
            <div class="error-msg" id="errorMsg"></div>
            <div class="numpad">
                <button class="numpad-btn" onclick="numPress('1')">1</button>
                <button class="numpad-btn" onclick="numPress('2')">2</button>
                <button class="numpad-btn" onclick="numPress('3')">3</button>
                <button class="numpad-btn" onclick="numPress('4')">4</button>
                <button class="numpad-btn" onclick="numPress('5')">5</button>
                <button class="numpad-btn" onclick="numPress('6')">6</button>
                <button class="numpad-btn" onclick="numPress('7')">7</button>
                <button class="numpad-btn" onclick="numPress('8')">8</button>
                <button class="numpad-btn" onclick="numPress('9')">9</button>
                <button class="numpad-btn clear" onclick="numClear()">전체삭제</button>
                <button class="numpad-btn" onclick="numPress('0')">0</button>
                <button class="numpad-btn delete" onclick="numDelete()">← 삭제</button>
            </div>
            <button class="submit-btn" id="submitBtn" onclick="submitClaim()" disabled>적립하기</button>
        </div>
    </div>

    <!-- 3. 성공 화면 -->
    <div class="screen success-screen" id="successScreen">
        <div class="success-icon">✓</div>
        <div class="success-title">적립 완료!</div>
        <div class="success-points" id="successPoints">0P</div>
        <div class="success-balance">총 잔액: <strong id="successBalance">0P</strong></div>
        <div class="success-countdown" id="successCountdown"></div>
    </div>

</div>

<!-- 로딩 오버레이 -->
<div class="loading-overlay" id="loadingOverlay">
    <div class="loading-spinner"></div>
</div>

<script>
// ── 상태 ──
let phoneNumber = '';  // 010 이후 8자리만 관리
let currentSession = null;
let pollingInterval = null;
let successTimeout = null;

// ── 슬라이드쇼 ──
let currentSlide = 0;
const TOTAL_SLIDES = 3;
const SLIDE_INTERVAL = 4000; // 4초
let slideTimer = null;

function nextSlide() {
    const slides = document.querySelectorAll('.slide');
    const dots = document.querySelectorAll('.slide-dot');

    // 현재 슬라이드 exit
    slides[currentSlide].classList.remove('active');
    slides[currentSlide].classList.add('exit');
    dots[currentSlide].classList.remove('active');

    // 다음 슬라이드
    currentSlide = (currentSlide + 1) % TOTAL_SLIDES;

    // exit 클래스 제거 (transition 후)
    setTimeout(() => {
        document.querySelectorAll('.slide.exit').forEach(s => s.classList.remove('exit'));
    }, 600);

    slides[currentSlide].classList.add('active');
    dots[currentSlide].classList.add('active');
}

function startSlideshow() {
    if (slideTimer) clearInterval(slideTimer);
    slideTimer = setInterval(nextSlide, SLIDE_INTERVAL);
}

function stopSlideshow() {
    if (slideTimer) { clearInterval(slideTimer); slideTimer = null; }
}

startSlideshow();

// ── 화면 전환 ──
function showScreen(name) {
    document.querySelectorAll('.screen').forEach(s => s.classList.remove('active'));
    document.getElementById(name + 'Screen').classList.add('active');

    if (name === 'idle') {
        document.body.style.background = '#0f0b2e';
        startSlideshow();
    } else {
        document.body.style.background = '#f5f7fa';
        stopSlideshow();
    }
}

// ── 시계 ──
function updateClock() {
    const now = new Date();
    const h = String(now.getHours()).padStart(2, '0');
    const m = String(now.getMinutes()).padStart(2, '0');
    document.getElementById('headerTime').textContent = h + ':' + m;
}
updateClock();
setInterval(updateClock, 30000);

// ── 전화번호 (010 고정, 나머지 8자리) ──
function formatSuffix(num) {
    if (num.length <= 4) return num + '●'.repeat(Math.max(0, 4 - num.length)) + '-' + '●●●●';
    return num.slice(0, 4) + '-' + num.slice(4) + '●'.repeat(Math.max(0, 8 - num.length));
}

function updatePhoneDisplay() {
    const display = document.getElementById('phoneDisplay');
    const wrap = document.getElementById('phoneWrap');
    const btn = document.getElementById('submitBtn');

    if (phoneNumber.length === 0) {
        display.textContent = '0000-0000';
        display.className = 'phone-number placeholder';
        wrap.classList.remove('focus');
        btn.disabled = true;
    } else {
        display.textContent = formatSuffix(phoneNumber);
        display.className = 'phone-number';
        wrap.classList.add('focus');
        btn.disabled = phoneNumber.length < 8;
    }

    wrap.classList.remove('error');
    document.getElementById('errorMsg').textContent = '';
}

function numPress(digit) {
    if (phoneNumber.length >= 8) return;
    phoneNumber += digit;
    updatePhoneDisplay();
}

function numDelete() {
    phoneNumber = phoneNumber.slice(0, -1);
    updatePhoneDisplay();
}

function numClear() {
    phoneNumber = '';
    updatePhoneDisplay();
}

// ── 적립 ──
async function submitClaim() {
    const fullPhone = '010' + phoneNumber;
    if (fullPhone.length < 11) {
        document.getElementById('phoneWrap').classList.add('error');
        document.getElementById('errorMsg').textContent = '전화번호를 정확히 입력해주세요';
        return;
    }

    document.getElementById('loadingOverlay').classList.add('active');
    document.getElementById('submitBtn').disabled = true;

    try {
        const resp = await fetch('/api/kiosk/claim', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ phone: fullPhone })
        });
        const data = await resp.json();
        document.getElementById('loadingOverlay').classList.remove('active');

        if (data.success) {
            showSuccess(data.points, data.balance);
        } else {
            document.getElementById('phoneWrap').classList.add('error');
            document.getElementById('errorMsg').textContent = data.message || '적립 실패';
            document.getElementById('submitBtn').disabled = false;
        }
    } catch (err) {
        document.getElementById('loadingOverlay').classList.remove('active');
        document.getElementById('errorMsg').textContent = '서버 연결 실패';
        document.getElementById('submitBtn').disabled = false;
    }
}

// ── 성공 화면 ──
function showSuccess(points, balance) {
    document.getElementById('successPoints').textContent = points.toLocaleString() + 'P';
    document.getElementById('successBalance').textContent = balance.toLocaleString() + 'P';
    showScreen('success');

    let countdown = 5;
    const el = document.getElementById('successCountdown');
    el.textContent = countdown + '초 후 처음 화면으로 돌아갑니다';

    if (successTimeout) clearInterval(successTimeout);
    successTimeout = setInterval(() => {
        countdown--;
        if (countdown <= 0) { clearInterval(successTimeout); resetToIdle(); }
        else { el.textContent = countdown + '초 후 처음 화면으로 돌아갑니다'; }
    }, 1000);
}

function resetToIdle() {
    phoneNumber = '';
    currentSession = null;
    updatePhoneDisplay();
    showScreen('idle');
}

// ── 폴링 ──
async function pollKioskSession() {
    try {
        const resp = await fetch('/api/kiosk/current');
        const data = await resp.json();

        if (data.active && !currentSession) {
            currentSession = data;
            phoneNumber = '';
            updatePhoneDisplay();

            document.getElementById('claimAmount').textContent = data.amount.toLocaleString() + '원';
            document.getElementById('claimPoints').textContent = data.points.toLocaleString();

            // 품목 목록 표시
            const itemsCard = document.getElementById('itemsCard');
            const itemsList = document.getElementById('itemsList');
            if (data.items && data.items.length > 0) {
                itemsList.innerHTML = data.items.map(item =>
                    `<div class="item-row">
                        <span class="item-name">${item.name}</span>
                        <span class="item-qty">${item.qty}개</span>
                        <span class="item-total">${item.total.toLocaleString()}원</span>
                    </div>`
                ).join('');
                itemsCard.style.display = '';
            } else {
                itemsCard.style.display = 'none';
            }

            if (data.qr_url) {
                document.getElementById('qrImage').src =
                    'https://api.qrserver.com/v1/create-qr-code/?size=200x200&data=' +
                    encodeURIComponent(data.qr_url);
                document.getElementById('qrContainer').style.display = '';
                document.getElementById('dividerEl').style.display = '';
            } else {
                document.getElementById('qrContainer').style.display = 'none';
                document.getElementById('dividerEl').style.display = 'none';
            }

            showScreen('claim');
        } else if (!data.active && currentSession) {
            resetToIdle();
        }
    } catch (err) { /* 다음 폴링에서 재시도 */ }
}

pollingInterval = setInterval(pollKioskSession, 1000);
pollKioskSession();
</script>
</body>
</html>
