* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html, body {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* 스크롤 시에도 흔들림 없이 100% 고정되는 배경화면 레이어 */
.bg-fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #f7f9fc url('https://picsum.photos/1920/1080') no-repeat center center / cover;
    z-index: -1;
    pointer-events: none;
}

body {
    color: #333333;
    position: relative;
}

/* 상단 파란색 네비게이션 바 (상단 화면 고정) */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(59, 130, 246, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #ffffff;
    padding: 14px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand .power-icon {
    font-size: 22px;
}

.navbar-user {
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-logout {
    color: #ffffff;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    transition: background 0.2s;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.35);
}

/* 메인 컨테이너 */
.main-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

/* 카드가 나열되는 그리드 */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

/* 개별 카드 디자인 (반투명 글래스모피즘) */
.device-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.4);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.device-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.18);
}

.card-header-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.device-title {
    font-size: 20px;
    font-weight: 600;
    color: #1e293b;
}

.device-ip {
    font-size: 15px;
    color: #475569;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pc-icon {
    font-size: 16px;
    color: #64748b;
}

.status-badge-container {
    margin-top: 4px;
}

/* 알약 형태 상태 배지 */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-online {
    background-color: #1e8354;
    color: #ffffff;
}

.badge-online::before {
    content: "●";
    margin-right: 6px;
    font-size: 10px;
    color: #6ee7b7;
}

.badge-offline {
    background-color: #d93848;
    color: #ffffff;
}

.badge-offline::before {
    content: "●";
    margin-right: 6px;
    font-size: 10px;
    color: #fca5a5;
}

.badge-checking {
    background-color: #64748b;
    color: #ffffff;
}

.badge-checking::before {
    content: "●";
    margin-right: 6px;
    font-size: 10px;
    color: #e2e8f0;
}

/* 카드 구분선 */
.card-divider {
    height: 1px;
    background-color: rgba(0, 0, 0, 0.08);
    margin: 20px 0 16px 0;
}

/* 초록색 PC 켜기 버튼 */
.btn-power {
    width: 100%;
    background-color: #2d8a57;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    padding: 12px 0;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-power:hover {
    background-color: #246e45;
}

.btn-power:active {
    transform: scale(0.98);
}

.bolt-icon {
    font-size: 14px;
}

/* 하단 수동 입력 카드 (반투명 적용) */
.direct-wake-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.direct-wake-card h3 {
    font-size: 16px;
    color: #334155;
    margin-bottom: 12px;
}

.direct-wake-form {
    display: flex;
    gap: 12px;
}

.direct-wake-form input {
    flex: 1;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
}

.direct-wake-form input:focus {
    border-color: #3b82f6;
    background: #ffffff;
}

.btn-direct-wake {
    background-color: #3b82f6;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-direct-wake:hover {
    background-color: #2563eb;
}

/* 토스트 메시지 */
.toast-message {
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.toast-success { background-color: #def7ec; color: #03543f; border: 1px solid #84e1bc; }
.toast-error { background-color: #fde8e8; color: #9b1c1c; border: 1px solid #f8b4b4; }

/* 로그인 화면 전용 스타일 */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    width: 100%;
    max-width: 380px;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.login-header {
    text-align: center;
    margin-bottom: 24px;
}

.login-header h2 {
    color: #1e293b;
    font-size: 22px;
    margin-bottom: 6px;
}

.login-header p {
    color: #64748b;
    font-size: 13px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #475569;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
}

.form-group input:focus {
    border-color: #3b82f6;
    background: #ffffff;
}

.btn-primary {
    width: 100%;
    background-color: #3b82f6;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #2563eb;
}

.alert-error {
    background-color: #fef2f2;
    color: #dc2626;
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
}