/* ============================================================
   EoBooks Digital Contents — Common Entry & Result Styles
   공통 스타일: 초기화면, 세션 뱃지, 결과 3탭, 버튼, 유틸리티
   수정 시 전 활동에 일괄 반영됩니다.

   [v3.2] 2026-04-14
   - 라이트 테마로 전환 (다크 → 화이트/블루)
   - 네온 그린 → 블루 포인트 컬러
   - input, btn border-radius 확대 (부드러운 느낌)

   [v3.1] 2026-04-12
   - 폰트(@import Jua) 자동 로드 추가
   - 활동 파일에서 반복되던 공유 스타일 흡수
     (body::before, #user-badge, progress, mascot, action-buttons 등)
   - CSS 변수 별칭 추가 (--accent, --card 등)
   - 활동 파일에서 .container/.screen/.btn 등을 재선언할 필요 없음
   ============================================================ */

/* === Font Import (전 활동 공통) === */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700;900&family=Jua&display=swap');

/* === CSS Variables === */
:root {
    --bg: #eef2fb;
    --neon: #4361ee;
    --neon-dark: #3451c7;
    --neon-glow: rgba(67, 97, 238, 0.25);
    --text: #1a1a2e;
    --text-light: #64748b;
    --border: #dde3f0;

    /* 활동 파일 호환 별칭 — 활동별 :root에서 재정의 가능 */
    --accent: #4361ee;
    --accent-dim: rgba(67, 97, 238, 0.1);
    --card: #ffffff;
    --card-hover: #f5f7fe;
    --text-dim: #64748b;
    --radius: 16px;
    --radius-sm: 10px;
}

/* === Reset & Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 배경 그라데이션 효과 (전 활동 공통) */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(67, 97, 238, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(99, 179, 237, 0.06) 0%, transparent 50%);
    z-index: 0;
    pointer-events: none;
}

.container {
    max-width: 520px;
    margin: 0 auto;
    padding: 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

/* === Screen Management === */
.screen {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Session Badge (클래스 기반 — common-entry.js용) === */
.session-badge {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.session-badge-left {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 500;
}

.session-badge-center {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    font-size: 12px;
}

.session-badge-right {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
}

/* === Activity Badge (ID 기반 — 활동 파일의 showBadge()용) === */
#user-badge {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    justify-content: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

#badge-code { color: var(--accent); }
#badge-school { color: var(--text); }
#badge-nick { color: var(--text); }
.badge-dot { color: var(--border); }

/* === Entry Screen === */
#entryScreen {
    gap: 24px;
    justify-content: center;
    min-height: 100vh;
}

/* container 래퍼가 있는 활동 — 이중 min-height 방지 */
.container #entryScreen {
    min-height: 0;
    flex: 1;
}

.entry-header {
    text-align: center;
}

.entry-title {
    font-family: 'Jua', cursive;
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--accent);
}

.entry-subtitle {
    font-size: 14px;
    color: var(--text-light);
}

/* 사용 방법 + QR 통합 박스 */
.entry-top-row {
    display: flex;
    gap: 14px;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* 통합 박스 내부의 entry-instructions는 자체 박스 스타일 제거 */
.entry-top-row .entry-instructions {
    flex: 1;
    min-width: 0;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
    border-radius: 0;
}

/* QR 영역도 자체 박스 스타일 없이 단순 영역으로 (구분선만) */
.entry-qr-block {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-left: 14px;
    border-left: 1px solid var(--border);
}

.entry-qr-img {
    width: 130px;
    height: 130px;
    transition: transform .15s;
}

.entry-qr-img:hover {
    transform: scale(1.05);
}

.entry-qr-img img,
.entry-qr-img canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.entry-qr-label {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 8px;
    text-align: center;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .entry-top-row {
        flex-direction: column;
    }
    .entry-qr-block {
        align-self: center;
        padding-left: 0;
        padding-top: 16px;
        border-left: none;
        border-top: 1px solid var(--border);
    }
}

/* === QR 확대 모달 === */
.entry-qr-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
    cursor: pointer;
}

.entry-qr-modal.show {
    display: flex;
    animation: entryQrFadeIn .15s ease-out;
}

@keyframes entryQrFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.entry-qr-modal-content {
    background: #fff;
    border-radius: 16px;
    padding: 28px 32px;
    text-align: center;
    max-width: 420px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.entry-qr-modal-img {
    width: 320px;
    height: 320px;
    margin: 0 auto;
}

.entry-qr-modal-img img,
.entry-qr-modal-img canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.entry-qr-modal-url {
    font-size: 12px;
    color: #555;
    margin-top: 16px;
    word-break: break-all;
    line-height: 1.5;
}

.entry-qr-modal-hint {
    font-size: 12px;
    color: #999;
    margin-top: 14px;
}

@media (max-width: 480px) {
    .entry-qr-modal-img {
        width: 240px;
        height: 240px;
    }
    .entry-qr-modal-content {
        padding: 20px;
    }
}

.entry-instructions {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.entry-instructions strong {
    color: var(--accent);
}

.entry-instructions ol {
    margin: 8px 0 0 0;
    padding-left: 1.5em;
}

.entry-instructions li {
    padding-left: 0.3em;
}

.entry-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.form-label .required {
    color: #ef4444;
}

input[type="text"] {
    padding: 12px;
    background: var(--card);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 14px;
    /* 시스템 폰트 우선 → 라틴·숫자 자간 정상화, 한글은 Noto Sans KR fallback */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'Noto Sans KR', sans-serif;
    font-variant-numeric: proportional-nums;
    transition: border-color 0.3s ease;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

input[type="text"].error {
    border-color: #ef4444;
}

.error-message {
    font-size: 12px;
    color: #ef4444;
    min-height: 0px;
    margin-top: 2px;
    visibility: hidden;
}

.error-message.show {
    visibility: visible;
}

/* === Buttons === */
.btn {
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent), var(--neon-dark));
    color: #ffffff;
    box-shadow: 0 4px 14px var(--neon-glow);
}

.btn-primary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--border);
    color: var(--text);
}

.btn-secondary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-group {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.btn-group .btn {
    flex: 1;
}

/* === Activity Header (공통 패턴) === */
.activity-header {
    text-align: center;
    margin-bottom: 20px;
}

.activity-stage {
    font-size: 13px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
}

.activity-title {
    font-family: 'Jua', cursive;
    font-size: 24px;
    color: var(--text);
}

/* === Progress Bar (활동 진행률) === */
.progress-wrap {
    margin: 16px 0 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-bar-bg {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #63b3ed);
    border-radius: 4px;
    transition: width 0.4s;
    width: 0%;
}

.progress-text {
    font-size: 12px;
    color: var(--accent);
    font-weight: 700;
    min-width: 36px;
    text-align: right;
}

/* === Mascot Comment (안내 메시지 박스) === */
.mascot-comment {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.6;
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.mascot-comment .name {
    font-weight: 700;
    color: var(--accent);
    font-size: 13px;
}

/* === Bot Comment (해설 박스) === */
.bot-comment {
    background: var(--card);
    border-left: 3px solid var(--accent);
    border-radius: 0 12px 12px 0;
    padding: 16px;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-dim);
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.bot-comment strong {
    color: var(--accent);
}

/* === Result Screen: Tabs (pill 스타일) === */
.result-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: var(--card);
    border-radius: var(--radius-sm);
    padding: 4px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.result-tab {
    flex: 1;
    padding: 10px 8px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-dim);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    font-family: 'Noto Sans KR', sans-serif;
    transition: all 0.2s;
}

.result-tab.active {
    background: transparent;
    color: var(--accent);
}

.result-content {
    display: none;
}

.result-content.active {
    display: block;
}

/* === Result Screen: Cards & Stats === */
.result-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.result-header {
    text-align: center;
    margin-bottom: 20px;
}

.result-header h2 {
    font-size: 18px;
    color: var(--accent);
}

.result-name {
    font-size: 14px;
    color: var(--text-dim);
    margin-top: 4px;
}

.result-section {
    margin-bottom: 20px;
}

.result-section-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.result-section-title .icon {
    font-size: 16px;
}

.result-score {
    text-align: center;
    padding: 16px;
    background: var(--accent-dim);
    border-radius: 10px;
    margin-bottom: 12px;
}

.result-score-number {
    font-size: 36px;
    font-family: 'Jua', cursive;
    color: var(--accent);
    margin-bottom: 4px;
}

.result-score-label {
    font-size: 12px;
    color: var(--text-light);
}

.result-stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.result-stat-item:last-child {
    border-bottom: none;
}

.result-stat-label {
    color: var(--text-dim);
}

.result-stat-value {
    color: var(--accent);
    font-weight: 700;
}

.result-ranking {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result-rank-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.result-rank-medal {
    font-size: 20px;
    min-width: 30px;
    text-align: center;
}

.result-rank-name {
    flex: 1;
    font-size: 14px;
}

.result-rank-value {
    font-size: 13px;
    color: var(--text-dim);
}

/* === Action Buttons (결과 화면 하단) === */
.action-buttons {
    display: flex;
    gap: 8px;
    margin-top: 20px;
    justify-content: center;
}

.action-buttons .btn {
    flex: 1;
    padding: 12px 8px;
    font-size: 0.9rem;
    white-space: nowrap;
    justify-content: center;
    text-align: center;
}

/* === Refresh Button === */
.refresh-btn {
    padding: 12px 24px;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    margin-top: 16px;
    width: 100%;
    transition: all 0.2s ease;
    font-family: 'Noto Sans KR', sans-serif;
}

.refresh-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.refresh-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* === Utility === */
.empty-state {
    text-align: center;
    padding: 20px;
    color: var(--text-dim);
    font-size: 13px;
}

.loading {
    text-align: center;
    padding: 20px;
    color: var(--text-light);
}

.spinner {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}