/* ============================================
   🎀 PickSafe 파스텔 디자인 시스템
   ============================================ */

/* 핵심 디자인 토큰 - 파스텔 팔레트 */
:root {
    --bg-primary: #FFF8F0;
    --bg-secondary: #FFF1E8;
    --bg-tertiary: #FFE8DC;
    --bg-card: #FFFFFF;
    --text-primary: #3A3A3A;
    --text-secondary: #7A7A7A;
    --text-muted: #AAAAAA;
    --accent: #5ABFAD;
    --accent-hover: #48A99A;
    --accent-light: rgba(90, 191, 173, 0.12);
    --accent-glow: rgba(90, 191, 173, 0.18);
    --pink: #F4A5B0;
    --pink-light: rgba(244, 165, 176, 0.12);
    --pink-hover: #E8939E;
    --danger: #E85D75;
    --danger-light: rgba(232, 93, 117, 0.1);
    --warning: #F0A848;
    --warning-light: rgba(240, 168, 72, 0.1);
    --safe-green: #7ECDB8;
    --safe-green-light: rgba(126, 205, 184, 0.12);
    --card-border: rgba(90, 191, 173, 0.15);
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    --card-shadow-hover: 0 8px 30px rgba(90, 191, 173, 0.12);
    --font-sans: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --border-radius: 16px;
    --border-radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 초기화 및 기본 스타일 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: linear-gradient(180deg, var(--bg-primary) 0%, #FFF0E5 50%, var(--bg-primary) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 카드 패널 */
.glass-panel {
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.glass-panel:hover {
    box-shadow: var(--card-shadow-hover);
}

/* 레이아웃 - 모바일 웹앱 컨테이너 */
.app-container {
    max-width: 480px;
    width: 100%;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* 헤더 */
header {
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--pink), var(--accent)) 1;
    background: var(--bg-card);
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent);
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--accent), var(--pink));
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 900;
}

/* 메인 컨텐츠 */
main {
    flex: 1;
    padding: 1.5rem 1rem 5rem 1rem;
}

/* 하단 내비게이션 바 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    height: 64px;
    background: var(--bg-card);
    border-top: 1px solid rgba(244, 165, 176, 0.2);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    gap: 2px;
    transition: var(--transition);
}

.nav-item:hover, .nav-item.active {
    color: var(--accent);
}

.nav-item svg {
    width: 24px;
    height: 24px;
    transition: var(--transition);
}

.nav-item:hover svg, .nav-item.active svg {
    transform: translateY(-2px);
}

/* 중앙 스캔 버튼 */
.nav-item.scan-btn-nav {
    background: linear-gradient(135deg, var(--accent), #7ECDB8);
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    justify-content: center;
    margin-top: -24px;
    box-shadow: 0 4px 16px rgba(90, 191, 173, 0.3);
    border: 4px solid var(--bg-primary);
}

.nav-item.scan-btn-nav svg {
    width: 22px;
    height: 22px;
    color: #fff;
}

.nav-item.scan-btn-nav:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent));
    transform: scale(1.08);
}

/* 타이포그래피 */
h1 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.card {
    padding: 1.25rem;
    margin-bottom: 1rem;
}

/* 기본 버튼 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    width: 100%;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #7ECDB8);
    color: #fff;
    box-shadow: 0 4px 14px rgba(90, 191, 173, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(90, 191, 173, 0.3);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    transform: translateY(-1px);
}

/* 폼 인풋 공통 스타일 */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    border: 1.5px solid rgba(90, 191, 173, 0.2);
    background: var(--bg-card);
    color: var(--text-primary);
    outline: none;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* 면책 조항 텍스트 스타일 */
.disclaimer {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 2rem;
    line-height: 1.4;
    padding: 0 1rem;
}

/* 파스텔 태그/뱃지 */
.pastel-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.pastel-tag.safe {
    background: var(--safe-green-light);
    color: #3D9C80;
    border: 1px solid rgba(126, 205, 184, 0.3);
}

.pastel-tag.warning {
    background: var(--warning-light);
    color: #C08530;
    border: 1px solid rgba(240, 168, 72, 0.3);
}

.pastel-tag.danger {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid rgba(232, 93, 117, 0.25);
}

.pastel-tag.neutral {
    background: rgba(170, 170, 170, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(170, 170, 170, 0.2);
}

/* 귀여운 구분선 */
.cute-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.cute-divider::before,
.cute-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--pink), transparent);
}

.cute-divider span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

/* 마이크로 인터랙션 애니메이션 */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 3s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.float {
    animation: float 3s infinite ease-in-out;
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 스크롤바 스타일 (밝은 버전) */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--pink);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}