:root {
    --sf-green: #22a653;
    --sf-green-dark: #147c3b;
    --sf-green-light: #eaf8ef;
    --sf-bg: #f4f8f5;
    --sf-card: #ffffff;
    --sf-text: #19251f;
    --sf-muted: #77837d;
    --sf-border: #e4ece7;
    --sf-red: #e94b4b;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--sf-bg);
}

.sf-dashboard {
    max-width: 1250px;
    margin: 0 auto;
    padding: 20px 10px 110px 10px;
    color: var(--sf-text);
}

/* ================================
       상단
    ================================ */

.sf-header {
    min-height: 150px;
    padding: 28px 32px;
    border-radius: 28px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    background: linear-gradient( 120deg, #ffffff 0%, #f4fff7 60%, #e9f7ed 100% );
    border: 1px solid var(--sf-border);
    box-shadow: 0 10px 30px rgba(30,80,50,.08);
}

.sf-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sf-logo {
    font-size: 50px;
}

.sf-brand h1 {
    margin: 0;
    font-size: 35px;
    font-weight: 800;
    color: #093d27;
}

.sf-brand p {
    margin: 5px 0 0;
    color: var(--sf-muted);
}

.sf-header-right {
    display: flex;
    gap: 10px;
}

.sf-house-select {
    border: 1px solid var(--sf-border);
    border-radius: 16px;
    background: #ffffff;
    padding: 12px 18px;
    font-weight: 700;
}

.sf-bell {
    width: 48px;
    height: 48px;
    border: 1px solid var(--sf-border);
    background: #ffffff;
    border-radius: 16px;
    font-size: 20px;
    cursor: pointer;
}

/* ================================
       공통 카드
    ================================ */

.sf-card {
    margin-top: 18px;
    background: var(--sf-card);
    border: 1px solid var(--sf-border);
    border-radius: 24px;
    padding: 23px;
    box-shadow: 0 8px 25px rgba(30,70,50,.06);
    scroll-margin-top: 20px;
}

.sf-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
}

.sf-card h2 {
    margin: 0;
    font-size: 23px;
    font-weight: 800;
}

.sf-description {
    margin: 5px 0 0;
    color: var(--sf-muted);
    font-size: 14px;
}

.sf-green {
    color: var(--sf-green);
}

.sf-red {
    color: var(--sf-red);
}

.sf-live {
    display: inline-block;
    margin-left: 8px;
    background: var(--sf-green-light);
    color: var(--sf-green-dark);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 800;
}

.sf-update {
    color: var(--sf-muted);
    font-size: 13px;
}

/* ================================
       센서 카드
    ================================ */

.sf-metric-grid {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 12px;
}

.sf-metric {
    background: #f8fbf9;
    border: 1px solid #edf2ef;
    border-radius: 18px;
    padding: 18px;
    min-height: 115px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
}

.sf-metric-icon {
    font-size: 25px;
}

.sf-metric-name {
    color: var(--sf-muted);
    font-size: 13px;
    font-weight: 700;
}

.sf-metric-value {
    font-size: 25px;
    font-weight: 800;
}

.sf-unit {
    font-size: 14px;
    color: var(--sf-muted);
}

/* ================================
       상태 카드
    ================================ */

.sf-mist-grid {
    display: grid;
    grid-template-columns: 1.3fr repeat(4,1fr);
    gap: 12px;
}

.sf-status-box {
    background: #f8fbf9;
    border: 1px solid #edf2ef;
    border-radius: 18px;
    min-height: 110px;
    padding: 17px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
}

.sf-status-label {
    color: var(--sf-muted);
    font-size: 13px;
    font-weight: 700;
}

.sf-status-value {
    font-size: 21px;
    font-weight: 800;
}

/* ================================
       버튼
    ================================ */

.sf-control-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 12px;
    margin-top: 14px;
}

    .sf-control-grid.two {
        grid-template-columns: repeat(2,1fr);
    }

.sf-btn {
    border: none;
    border-radius: 16px;
    padding: 15px 18px;
    font-weight: 800;
    cursor: pointer;
}

.sf-btn-green {
    background: var(--sf-green);
    color: #ffffff;
}

    .sf-btn-green:hover {
        background: var(--sf-green-dark);
    }

.sf-btn-gray {
    background: #eef3f0;
    color: #32423a;
}

.sf-btn-red {
    background: #fbeaea;
    color: #c63b3b;
}

.sf-btn:disabled,
.sf-btn-small:disabled {
    opacity: .55;
    cursor: wait;
}

/* ================================
       개폐기
    ================================ */

.sf-opener-all {
    background: var(--sf-green-light);
    border: 1px solid #d9eee0;
    border-radius: 20px;
    padding: 18px;
    margin-bottom: 18px;
}

.sf-opener-all-title strong {
    font-size: 18px;
}

.sf-opener-all-title span {
    margin-left: 10px;
    color: var(--sf-muted);
    font-size: 13px;
}

.sf-opener-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 15px;
}

.sf-opener-card {
    border: 1px solid var(--sf-border);
    border-radius: 20px;
    padding: 18px;
    background: #fbfdfb;
}

.sf-opener-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.sf-opener-card h3 {
    margin: 4px 0 0;
    font-size: 20px;
    font-weight: 800;
}

.sf-opener-location {
    display: inline-block;
    padding: 4px 9px;
    background: var(--sf-green-light);
    color: var(--sf-green-dark);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 800;
}

.sf-normal {
    color: var(--sf-green);
    font-size: 13px;
    font-weight: 800;
}

.sf-opener-status-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 13px;
}

    .sf-opener-status-row > div {
        background: #ffffff;
        border: 1px solid #edf1ef;
        border-radius: 14px;
        padding: 12px;
    }

    .sf-opener-status-row strong {
        display: block;
        font-size: 20px;
        margin-top: 5px;
    }

.sf-progress {
    width: 100%;
    height: 16px;
    background: #dde7e1;
    border-radius: 20px;
    overflow: hidden;
}

.sf-progress-bar {
    height: 100%;
    background: var(--sf-green);
    transition: width .3s ease;
}

.sf-opener-buttons {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 8px;
    margin-top: 13px;
}

.sf-btn-small {
    border: none;
    border-radius: 13px;
    padding: 11px 7px;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
}

.sf-auto-row {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--sf-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.sf-auto-description {
    color: var(--sf-muted);
    font-size: 13px;
    margin-left: 10px;
}

.sf-auto-checkbox {
    transform: scale(1.35);
    accent-color: var(--sf-green);
    cursor: pointer;
}

/* ================================
       펄라이트
    ================================ */

.sf-four-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 12px;
}

/* ================================
       장치 상태
    ================================ */

.sf-device-grid {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 12px;
}

.sf-device {
    border: 1px solid var(--sf-border);
    border-radius: 18px;
    padding: 16px;
    text-align: center;
    background: #fbfdfb;
}

.sf-device-icon {
    display: block;
    font-size: 27px;
    margin-bottom: 5px;
}

/* ================================
       알림
    ================================ */

.sf-alert {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 15px;
    padding: 15px 0;
    border-top: 1px solid var(--sf-border);
}

.sf-alert-time {
    color: var(--sf-muted);
    font-weight: 700;
}

.sf-alert-title {
    font-weight: 800;
}

.sf-alert-text {
    color: var(--sf-muted);
    font-size: 14px;
    margin-top: 4px;
}

/* ================================
       통신 오류 표시
    ================================ */

.sf-api-error {
    display: none;
    margin-top: 18px;
    padding: 12px 16px;
    background: #fff0f0;
    color: #c63b3b;
    border: 1px solid #ffd5d5;
    border-radius: 14px;
    font-size: 13px;
    font-weight: 700;
}

    .sf-api-error.show {
        display: block;
    }

/* ================================
       하단 메뉴
    ================================ */

.sf-bottom-nav {
    position: fixed;
    z-index: 1000;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    width: min(92%,900px);
    display: grid;
    grid-template-columns: repeat(5,1fr);
    padding: 8px;
    background: rgba(255,255,255,.97);
    border: 1px solid var(--sf-border);
    border-radius: 23px;
    box-shadow: 0 10px 35px rgba(0,0,0,.13);
}

.sf-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 9px;
    color: #77837d;
    text-decoration: none;
    border-radius: 15px;
    font-size: 20px;
}

    .sf-nav-item:hover {
        text-decoration: none;
    }

    .sf-nav-item span {
        font-size: 12px;
        margin-top: 3px;
        font-weight: 700;
    }

    .sf-nav-item.active {
        background: var(--sf-green-light);
        color: var(--sf-green-dark);
    }

/* ================================
       더보기
    ================================ */

.sf-more-overlay {
    display: none;
    position: fixed;
    z-index: 1500;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: rgba(0,0,0,.38);
}

    .sf-more-overlay.open {
        display: block;
    }

.sf-more-menu {
    position: fixed;
    z-index: 1600;
    left: 50%;
    bottom: -700px;
    transform: translateX(-50%);
    width: min(96%,760px);
    max-height: 82vh;
    overflow-y: auto;
    padding: 10px 22px 105px 22px;
    background: #ffffff;
    border-radius: 28px 28px 0 0;
    box-shadow: 0 -10px 40px rgba(0,0,0,.20);
    transition: bottom .30s ease;
}

    .sf-more-menu.open {
        bottom: 0;
    }

.sf-more-handle {
    width: 45px;
    height: 5px;
    margin: 2px auto 18px;
    background: #d3dbd6;
    border-radius: 20px;
}

.sf-more-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

    .sf-more-header h3 {
        margin: 0;
        font-size: 23px;
        font-weight: 800;
    }

    .sf-more-header p {
        margin: 4px 0 0;
        color: var(--sf-muted);
        font-size: 13px;
    }

.sf-more-close {
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 50%;
    background: #f1f5f2;
    font-size: 18px;
    cursor: pointer;
}

.sf-more-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 11px;
}

.sf-more-item {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 80px;
    padding: 15px;
    background: #f8fbf9;
    border: 1px solid var(--sf-border);
    border-radius: 18px;
    color: var(--sf-text);
    text-decoration: none;
}

.sf-more-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border-radius: 14px;
    font-size: 24px;
}

.sf-more-item strong {
    display: block;
    font-size: 15px;
}

.sf-more-item small {
    display: block;
    margin-top: 3px;
    color: var(--sf-muted);
    font-size: 12px;
}

/* ================================
       반응형
    ================================ */

@media(max-width:900px) {

    .sf-metric-grid,
    .sf-mist-grid,
    .sf-device-grid {
        grid-template-columns: repeat(2,1fr);
    }

    .sf-opener-grid {
        grid-template-columns: 1fr;
    }

    .sf-four-grid {
        grid-template-columns: repeat(2,1fr);
    }
}

@media(max-width:600px) {

    .sf-header {
        flex-direction: column;
        padding: 20px;
    }

    .sf-header-right {
        width: 100%;
    }

    .sf-house-select {
        flex: 1;
    }

    .sf-brand h1 {
        font-size: 28px;
    }

    .sf-card {
        padding: 16px;
    }

    .sf-control-grid,
    .sf-control-grid.two {
        grid-template-columns: 1fr;
    }

    .sf-update {
        display: none;
    }

    .sf-auto-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media(max-width:500px) {

    .sf-more-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   개폐기 버튼 선택 상태
   - 기본: 연한 배경
   - 선택된 버튼만 진한 색상
========================================================= */

.sf-opener-buttons .sf-btn-small {
    background: #f4f7f5;
    color: #4b5a52;
    border: 2px solid transparent;
    box-shadow: none;
    transition: background .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}

/* 선택하지 않은 열기 */
.sf-opener-buttons .sf-btn-green:not(.sf-selected) {
    background: #f4f7f5;
    color: #178044;
}

/* 선택하지 않은 정지 */
.sf-opener-buttons .sf-btn-gray:not(.sf-selected) {
    background: #f4f7f5;
    color: #3f4b45;
}

/* 선택하지 않은 닫기 */
.sf-opener-buttons .sf-btn-red:not(.sf-selected) {
    background: #f4f7f5;
    color: #d13b3b;
}

/* 선택된 버튼 공통 */
.sf-opener-buttons .sf-btn-small.sf-selected {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,0,0,.18);
}

/* 열기 선택 */
.sf-opener-buttons .sf-btn-green.sf-selected {
    background: #16833e;
    color: #ffffff;
    border-color: #0d7132;
}

/* 정지 선택 */
.sf-opener-buttons .sf-btn-gray.sf-selected {
    background: #4f5b55;
    color: #ffffff;
    border-color: #39423e;
}

/* 닫기 선택 */
.sf-opener-buttons .sf-btn-red.sf-selected {
    background: #d53636;
    color: #ffffff;
    border-color: #bd2929;
}