/* ==============================
   프리미엄 다이슨 스타일 v2
   강화된 글래스모피즘 & 네온 효과
   ============================== */

/* 배경 이미지 레이어 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: url('../images/premium/3-iphone-analysis.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.25) blur(4px);
    z-index: -2;
}

/* 다크 오버레이 */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 10, 0.5) 0%,
        rgba(10, 10, 10, 0.7) 50%,
        rgba(10, 10, 10, 0.85) 100%
    );
    z-index: -1;
}

/* 앱 컨테이너 */
.app-container {
    position: relative;
    z-index: 1;
}

/* 헤더 글래스 효과 */
header {
    background: rgba(26, 26, 26, 0.6) !important;
    backdrop-filter: blur(20px) !important;
    border-bottom: 1px solid rgba(255, 23, 68, 0.2) !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5) !important;
}

/* 로고 네온 효과 */
.logo {
    filter: drop-shadow(0 0 15px rgba(255, 23, 68, 0.6)) !important;
    transition: filter 0.3s ease;
}

.logo:hover {
    filter: drop-shadow(0 0 25px rgba(255, 23, 68, 0.9)) !important;
}

/* 페이지 헤더 */
.page-header {
    background: rgba(26, 26, 26, 0.7) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(255, 23, 68, 0.3) !important;
    border-radius: 20px !important;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(255, 23, 68, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
}

.page-header h1 {
    text-shadow: 
        0 0 20px rgba(255, 23, 68, 0.6),
        0 0 40px rgba(255, 23, 68, 0.3),
        0 2px 4px rgba(0, 0, 0, 0.8) !important;
    background: linear-gradient(135deg, #FF1744, #FF4569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8) !important;
}

/* 카드 글래스모피즘 강화 */
.card {
    background: rgba(26, 26, 26, 0.75) !important;
    backdrop-filter: blur(25px) !important;
    border: 1px solid rgba(255, 23, 68, 0.3) !important;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(255, 23, 68, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.card:hover {
    background: rgba(26, 26, 26, 0.85) !important;
    border-color: rgba(255, 23, 68, 0.6) !important;
    box-shadow: 
        0 12px 48px rgba(0, 0, 0, 0.6),
        0 0 50px rgba(255, 23, 68, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
    transform: translateY(-6px) scale(1.02) !important;
}

/* 카드 제목 네온 */
.card-title {
    text-shadow: 
        0 0 10px rgba(255, 23, 68, 0.5),
        0 2px 4px rgba(0, 0, 0, 0.8) !important;
}

/* 아이콘 네온 글로우 */
.icon,
.card-header .icon {
    background: linear-gradient(135deg, rgba(255, 23, 68, 0.2), rgba(255, 69, 105, 0.2)) !important;
    box-shadow: 
        0 0 20px rgba(255, 23, 68, 0.4),
        inset 0 0 10px rgba(255, 23, 68, 0.1) !important;
    transition: all 0.3s ease !important;
}

.icon:hover,
.card:hover .icon {
    box-shadow: 
        0 0 30px rgba(255, 23, 68, 0.6),
        inset 0 0 15px rgba(255, 23, 68, 0.2) !important;
    transform: scale(1.1) !important;
}

/* 버튼 네온 효과 강화 */
.btn-primary,
.btn-red-accent,
button[type="button"] {
    background: linear-gradient(135deg, #FF1744, #FF4569) !important;
    border: 1px solid rgba(255, 23, 68, 0.5) !important;
    box-shadow: 
        0 8px 24px rgba(220, 20, 60, 0.5),
        0 0 40px rgba(220, 20, 60, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.btn-primary:hover,
.btn-red-accent:hover,
button[type="button"]:hover {
    background: linear-gradient(135deg, #FF4569, #FF1744) !important;
    box-shadow: 
        0 12px 36px rgba(220, 20, 60, 0.7),
        0 0 60px rgba(220, 20, 60, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-2px) scale(1.02) !important;
}

.btn-primary:active,
.btn-red-accent:active,
button[type="button"]:active {
    transform: translateY(0) scale(0.98) !important;
}

/* 카메라 프레임 글래스 */
#camera-frame,
#captured-image-display,
video,
canvas {
    background: rgba(26, 26, 26, 0.8) !important;
    backdrop-filter: blur(15px) !important;
    border: 2px solid rgba(255, 23, 68, 0.5) !important;
    border-radius: 20px !important;
    box-shadow: 
        0 0 50px rgba(255, 23, 68, 0.5),
        inset 0 0 30px rgba(255, 23, 68, 0.1) !important;
}

/* 결과 카드 */
.result-card {
    background: rgba(26, 26, 26, 0.8) !important;
    backdrop-filter: blur(25px) !important;
    border: 1px solid rgba(255, 23, 68, 0.4) !important;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.6),
        0 0 30px rgba(255, 23, 68, 0.3) !important;
}

/* 프로그레스 바 네온 */
.progress-bar,
.progress-fill {
    background: linear-gradient(90deg, #FF1744, #FF4569) !important;
    box-shadow: 
        0 0 20px rgba(220, 20, 60, 0.6),
        0 0 40px rgba(220, 20, 60, 0.3) !important;
}

/* 로딩 스피너 네온 */
.loading-spinner,
.loading-spinner::after {
    border-top-color: #FF1744 !important;
    box-shadow: 
        0 0 20px rgba(220, 20, 60, 0.8),
        0 0 40px rgba(220, 20, 60, 0.4) !important;
}

/* 입력 필드 글래스 */
input,
select,
textarea {
    background: rgba(26, 26, 26, 0.7) !important;
    backdrop-filter: blur(15px) !important;
    border: 1px solid rgba(255, 23, 68, 0.3) !important;
    color: var(--white-primary) !important;
    transition: all 0.3s ease !important;
}

input:focus,
select:focus,
textarea:focus {
    background: rgba(26, 26, 26, 0.85) !important;
    border-color: rgba(255, 23, 68, 0.6) !important;
    box-shadow: 
        0 0 20px rgba(255, 23, 68, 0.4),
        inset 0 0 10px rgba(255, 23, 68, 0.1) !important;
    outline: none !important;
}

/* 그리드 레이아웃 */
.grid {
    gap: 24px !important;
}

/* 애니메이션 */
@keyframes premiumFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.page-header {
    animation: premiumFadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 네온 펄스 */
@keyframes neonPulse {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(255, 23, 68, 0.4),
            0 0 40px rgba(255, 23, 68, 0.2);
    }
    50% {
        box-shadow: 
            0 0 40px rgba(255, 23, 68, 0.6),
            0 0 80px rgba(255, 23, 68, 0.3);
    }
}

.logo,
.icon {
    animation: neonPulse 3s ease-in-out infinite;
}

/* 모바일 최적화 */
@media (max-width: 768px) {
    body::before {
        filter: brightness(0.2) blur(3px);
    }
    
    body::after {
        background: linear-gradient(
            180deg,
            rgba(10, 10, 10, 0.6) 0%,
            rgba(10, 10, 10, 0.8) 50%,
            rgba(10, 10, 10, 0.9) 100%
        );
    }
    
    .card {
        background: rgba(26, 26, 26, 0.85) !important;
        backdrop-filter: blur(20px) !important;
    }
    
    header {
        background: rgba(26, 26, 26, 0.75) !important;
    }
}

/* 작은 모바일 */
@media (max-width: 375px) {
    body::before {
        filter: brightness(0.15) blur(2px);
    }
    
    .card {
        background: rgba(26, 26, 26, 0.9) !important;
    }
}