/**
 * Project: PAPABANK (아빠은행)
 * File: main.css
 * Description: 10종 테마 시스템, 모바일 키패드 대응 레이아웃, 커스텀 모달 UI 통합
 */

/* 1. 기본 폰트 및 초기화 (IBM Plex Sans KR 적용) */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+KR:wght@300;400;500;600;700&family=Do+Hyeon&display=swap');

:root {
    /* 기본 테마 (Theme 1 기준) */
    --bg-color: #0f172a;
    --panel-bg: #1e293b;
    --dot-color: #94a3b8;
    --accent-color: #22d3ee;
    --text-color: #e2e8f0;
    --sub-text-color: #94a3b8;
    --shadow: 0 20px 50px rgba(0,0,0,0.5);
    --backdrop: none;
    --transition: all 0.3s ease;
}

/* 2. 모바일 최적화 전체 레이아웃 */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: 'IBM Plex Sans KR', sans-serif;
    overflow-x: hidden;
    transition: background 0.5s ease;
}

/* 키보드 활성화 시 컨테이너가 위로 밀리도록 Flex 설정 */
body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease; /* 키보드 대응용 */
}

/* 3. 패턴 락(Pattern Lock) 스타일 고도화 */
.pattern-lock-wrap {
    position: relative;
    width: 260px;
    height: 260px;
    background: var(--panel-bg);
    border-radius: 30px;
    box-shadow: var(--shadow);
    backdrop-filter: var(--backdrop);
    -webkit-backdrop-filter: var(--backdrop);
    border: 1px solid rgba(255,255,255,0.1);
    touch-action: none;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
}

.dot {
    position: absolute;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    color: var(--dot-color);
    cursor: pointer;
    transition: transform 0.2s ease;
    user-select: none;
}

.dot.active {
    transform: translate(-50%, -50%) scale(1.3);
    text-shadow: 0 0 10px var(--accent-color);
}

#patternCanvas {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    width: 100%;
    height: 100%;
    z-index: 10;
}

/* 4. 입력 폼 스타일 (숫자 키패드 최적화) */
input[type="text"], 
input[type="number"], 
input[type="password"] {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    border: 2px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--text-color);
    font-size: 16px;
    box-sizing: border-box;
    outline: none;
    transition: var(--transition);
}

input:focus {
    border-color: var(--accent-color);
    background: rgba(255,255,255,0.1);
}

/* 5. 버튼 스타일 */
.btn-primary {
    width: 100%;
    padding: 18px;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: var(--transition);
}

.btn-primary:active {
    transform: scale(0.95);
    opacity: 0.9;
}

/* 6. [신규] 커스텀 모달 (alert 대체용) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: none; /* 기본 숨김 */
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--panel-bg);
    padding: 30px;
    border-radius: 25px;
    width: 85%;
    max-width: 320px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: var(--shadow);
    color: var(--text-color);
    animation: modalScale 0.3s ease;
}

@keyframes modalScale {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-title {
    font-family: 'Do Hyeon', sans-serif;
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.modal-btn {
    margin-top: 20px;
    padding: 12px 25px;
    background: var(--accent-color);
    border: none;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
}

/* 7. 카드 및 리스트 스타일 (기존 유지 및 테마 적용) */
.card {
    background: var(--panel-bg);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid rgba(255,255,255,0.05);
    margin-bottom: 15px;
    width: 100%;
    box-sizing: border-box;
}

.balance-text {
    font-family: 'Do Hyeon', sans-serif;
    font-size: 32px;
    color: var(--accent-color);
}

/* 8. 텍스트 효과 */
.sub-text {
    font-size: 0.85rem;
    color: var(--sub-text-color);
    font-weight: 300;
}

.error-text {
    color: #ef4444;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 10px;
}