/* IOT_SENTRY shared visual system */
:root {
    --ui-bg: #f4f6fb;
    --ui-surface: rgba(255, 255, 255, 0.94);
    --ui-surface-strong: #ffffff;
    --ui-border: #e5e9f2;
    --ui-text: #172033;
    --ui-muted: #6f7b91;
    --ui-primary: #a6192e;
    --ui-primary-dark: #7f1021;
    --ui-primary-soft: #fff0f2;
    --ui-green: #0e9f75;
    --ui-blue: #3478f6;
    --ui-amber: #e99a19;
    --ui-red: #e84b5f;
    --ui-radius-sm: 12px;
    --ui-radius: 18px;
    --ui-radius-lg: 26px;
    --ui-shadow: 0 12px 35px rgba(30, 41, 59, 0.07);
    --ui-shadow-hover: 0 20px 45px rgba(30, 41, 59, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.app-page {
    --bg-body: var(--ui-bg);
    --bg-card: var(--ui-surface);
    --bg-input: #f8fafc;
    --border-light: var(--ui-border);
    --border-subtle: #d7deea;
    --card-shadow: var(--ui-shadow);
    --text-main: var(--ui-text);
    --text-muted: var(--ui-muted);
    --color-ptit: var(--ui-primary);
    --status-online: var(--ui-green);
    --status-offline: var(--ui-red);
    background:
        radial-gradient(circle at 76% -10%, rgba(166, 25, 46, 0.09), transparent 27rem),
        radial-gradient(circle at 18% 105%, rgba(14, 159, 117, 0.08), transparent 30rem),
        var(--ui-bg);
    color: var(--ui-text);
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

body.app-page::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    opacity: 0.32;
    background-image: radial-gradient(rgba(100, 116, 139, 0.18) 0.65px, transparent 0.65px);
    background-size: 22px 22px;
}

body.app-page #sidebar {
    --text-main: #f8fafc;
    --text-muted: #aeb9cc;
    --bg-input: rgba(255, 255, 255, 0.075);
    --border-light: rgba(255, 255, 255, 0.1);
    background:
        radial-gradient(circle at 10% 5%, rgba(225, 67, 86, 0.24), transparent 13rem),
        linear-gradient(178deg, #1e2432 0%, #121722 58%, #0d1119 100%) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.07) !important;
    box-shadow: 16px 0 45px rgba(15, 23, 42, 0.13);
    padding: 26px 16px !important;
}

body.app-page #sidebar::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    top: 82px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
}

body.app-page .sidebar-link {
    min-height: 44px;
    border: 1px solid transparent;
    border-radius: 12px;
    color: #aeb9cc;
    font-size: 11px;
    letter-spacing: 0.1em;
    transition: transform .18s ease, color .18s ease, background .18s ease, border-color .18s ease;
}

body.app-page .sidebar-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.075);
    border-color: rgba(255, 255, 255, 0.08);
    transform: translateX(3px);
}

body.app-page .sidebar-link.active {
    color: #fff !important;
    background: linear-gradient(135deg, #b9273f, #8d1528) !important;
    border: 1px solid rgba(255,255,255,.11) !important;
    border-left: 1px solid rgba(255,255,255,.11) !important;
    border-radius: 12px !important;
    box-shadow: 0 10px 22px rgba(114, 13, 32, 0.3);
}

body.app-page .sidebar-link .ms {
    font-size: 19px;
}

body.app-page main {
    position: relative;
    max-width: 1680px;
    margin-right: auto;
    padding: 34px 38px 48px !important;
}

body.app-page h1 {
    font-size: clamp(27px, 3vw, 38px) !important;
    line-height: 1.08 !important;
    letter-spacing: -0.045em !important;
}

body.app-page h2 {
    letter-spacing: -0.018em;
}

body.app-page .glass,
body.app-page .metric-card {
    background: var(--ui-surface) !important;
    border: 1px solid rgba(220, 226, 237, 0.92) !important;
    border-radius: var(--ui-radius) !important;
    box-shadow: var(--ui-shadow) !important;
    backdrop-filter: blur(16px);
}

body.app-page .metric-card {
    min-height: 168px;
    padding: 24px !important;
}

body.app-page .metric-card::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 3px;
    opacity: 0;
    background: linear-gradient(90deg, var(--ui-primary), #ee6678);
    transition: opacity .2s ease;
}

body.app-page .metric-card:hover,
body.app-page .device-card:hover {
    transform: translateY(-4px) !important;
    border-color: rgba(166, 25, 46, 0.25) !important;
    box-shadow: var(--ui-shadow-hover) !important;
}

body.app-page .metric-card:hover::before {
    opacity: 1;
}

body.home-page main > .glass:first-of-type {
    background:
        radial-gradient(circle at 88% 25%, rgba(166, 25, 46, 0.13), transparent 22rem),
        linear-gradient(135deg, rgba(255,255,255,.98), rgba(255,247,248,.96)) !important;
    border-radius: var(--ui-radius-lg) !important;
    border-color: rgba(166, 25, 46, 0.13) !important;
    box-shadow: 0 18px 50px rgba(74, 20, 31, 0.09) !important;
}

body.home-page .dashboard-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

body.home-page .section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 2px;
}

body.home-page .section-heading-icon {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.home-page .section-heading-icon.irrigation {
    color: #087f5b;
    background: #dcf8ed;
}

body.home-page .section-heading-icon.environment {
    color: #227455;
    background: #e6f7ef;
}

body.home-page .section-heading-icon.system {
    color: #526078;
    background: #e9edf4;
}

body.home-page .section-heading h2 {
    margin: 0;
    color: var(--ui-text);
    font-size: 16px;
    font-weight: 850;
}

body.home-page .section-heading p {
    margin: 3px 0 0;
    color: var(--ui-muted);
    font-size: 12px;
}

body.home-page .dashboard-grid {
    display: grid;
    gap: 18px;
}

body.home-page .control-grid,
body.home-page .environment-grid,
body.home-page .system-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

body.home-page .metric-card {
    min-height: 154px;
}

body.home-page .metric-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

body.home-page .metric-icon {
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: all .2s ease;
}

body.home-page .metric-icon.blue { color: #3478f6; background: #eaf2ff; }
body.home-page .metric-icon.green { color: #0e9f75; background: #e4f8f1; }
body.home-page .metric-icon.muted { color: #7b879a; background: #f0f2f5; }
body.home-page .metric-icon.sensor { color: var(--ui-primary); background: var(--ui-primary-soft); }
body.home-page .metric-icon.system { color: #596981; background: #edf0f5; }

body.home-page .metric-title {
    color: #768198;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .09em;
    line-height: 1.35;
    text-transform: uppercase;
}

body.home-page .control-card-body {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 12px;
    flex: 1;
}

body.home-page .control-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
}

body.home-page .control-state {
    color: var(--ui-text);
    font-size: 26px;
    font-weight: 900;
    line-height: 1;
}

body.home-page .metric-caption {
    color: #8a95a8;
    font-size: 12px;
    margin-top: 7px;
}

body.home-page .mode-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    border-radius: 10px;
    background: #eef1f5;
}

body.home-page .mode-selector button {
    min-height: 34px;
    border: 0;
    border-radius: 8px;
    color: #7b879a;
    background: transparent;
    cursor: pointer;
    font-size: 12px;
    font-weight: 800;
}

body.home-page .mode-selector #btn-mode-manual {
    color: #fff;
    background: #3478f6;
    box-shadow: 0 5px 12px rgba(52,120,246,.24);
}

body.home-page .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 10px;
    border-radius: 999px;
    color: #7b879a;
    background: #f0f2f5;
    font-size: 10px;
    font-weight: 800;
    white-space: nowrap;
}

body.home-page .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #98a2b2;
}

body.home-page .sensor-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

body.home-page .threshold-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 7px 9px;
    border: 1px solid #f0cbd1;
    border-radius: 9px;
    color: var(--ui-primary);
    background: #fff7f8;
    cursor: pointer;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
}

body.home-page .threshold-action .ms {
    font-size: 14px;
}

body.home-page .sensor-name {
    margin: 16px 0 6px;
}

body.home-page .sensor-value-row {
    display: flex;
    align-items: baseline;
    gap: 7px;
}

body.home-page .sensor-value {
    color: var(--ui-text);
    font-size: 36px;
    font-weight: 900;
    line-height: 1.05;
}

body.home-page .sensor-unit {
    color: #8a95a8;
    font-size: 13px;
    font-weight: 800;
}

body.home-page .system-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

body.home-page .time-card {
    grid-column: span 2;
}

body.home-page .time-value {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--ui-text);
    font-size: clamp(20px, 2.1vw, 30px);
    font-weight: 900;
}

body.home-page .time-separator {
    color: #c0c7d3;
}

body.home-page .sensor-value-row.compact .sensor-value {
    font-size: 30px;
}

body.home-page .phase-value {
    color: var(--ui-text);
    font-size: clamp(20px, 2vw, 28px);
    font-weight: 900;
    line-height: 1.15;
}

@media (min-width: 1024px) and (max-width: 1350px) {
    body.home-page .control-grid,
    body.home-page .environment-grid,
    body.home-page .system-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    body.home-page .control-grid,
    body.home-page .environment-grid,
    body.home-page .system-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    body.home-page .control-grid,
    body.home-page .environment-grid,
    body.home-page .system-grid {
        grid-template-columns: 1fr;
    }

    body.home-page .time-card {
        grid-column: span 1;
    }

    body.home-page .section-heading p {
        display: none;
    }
}

body.app-page button,
body.app-page .card-btn,
body.app-page .btn-primary,
body.app-page .btn-add-device {
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, opacity .18s ease;
}

body.app-page button:hover:not(:disabled),
body.app-page .card-btn:hover,
body.app-page .btn-primary:hover,
body.app-page .btn-add-device:hover {
    transform: translateY(-1px);
}

body.app-page .btn-primary,
body.app-page .btn-add-device {
    background: linear-gradient(135deg, #b9273f, #8d1528) !important;
    color: #fff !important;
    border: 0 !important;
    border-radius: 12px !important;
    box-shadow: 0 9px 20px rgba(141, 21, 40, 0.22);
}

body.app-page input:not([type="checkbox"]):not([type="file"]),
body.app-page select,
body.app-page textarea {
    border: 1px solid #dfe5ef !important;
    border-radius: 12px !important;
    background: #f8fafc !important;
    color: var(--ui-text) !important;
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

body.app-page input:not([type="checkbox"]):not([type="file"]):focus,
body.app-page select:focus,
body.app-page textarea:focus {
    outline: none !important;
    background: #fff !important;
    border-color: rgba(166, 25, 46, 0.55) !important;
    box-shadow: 0 0 0 4px rgba(166, 25, 46, 0.09) !important;
}

body.app-page table {
    border-collapse: separate;
    border-spacing: 0;
}

body.app-page table thead th {
    background: #f7f8fb;
    color: #768198;
    font-size: 10px;
    letter-spacing: .1em;
}

body.app-page table tbody tr {
    transition: background .16s ease;
}

body.app-page table tbody tr:hover {
    background: #fbf7f8;
}

body.devices-page .device-card {
    position: relative;
    overflow: hidden;
    min-height: 280px;
}

body.devices-page .device-card::after {
    content: "";
    position: absolute;
    width: 140px;
    height: 140px;
    right: -58px;
    top: -58px;
    border-radius: 50%;
    background: rgba(166, 25, 46, 0.055);
    pointer-events: none;
}

body.analytics-page .time-filter {
    border-radius: 10px;
}

body.analytics-page .time-filter.active {
    color: #fff !important;
    background: var(--ui-primary) !important;
    border-color: var(--ui-primary) !important;
}

body.settings-page .upload-zone {
    border: 1.5px dashed #cbd3e1 !important;
    border-radius: 16px !important;
    background: linear-gradient(145deg, #fafbfc, #f5f7fa) !important;
}

body.settings-page .upload-zone:hover {
    border-color: var(--ui-primary) !important;
    background: var(--ui-primary-soft) !important;
}

body.auth-page {
    --bg-body: #f5f6fa;
    --bg-card: rgba(255,255,255,.96);
    --bg-input: #f7f8fb;
    --border-light: #e1e6ef;
    --card-shadow: 0 30px 80px rgba(20, 27, 42, 0.2);
    --text-main: var(--ui-text);
    --text-muted: var(--ui-muted);
    --color-ptit: var(--ui-primary);
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 15% 15%, rgba(221, 62, 84, .24), transparent 25rem),
        radial-gradient(circle at 88% 84%, rgba(14, 159, 117, .18), transparent 27rem),
        linear-gradient(145deg, #171d2a 0%, #262f43 48%, #111722 100%) !important;
}

body.auth-page::before {
    content: "IOT";
    position: fixed;
    left: -4vw;
    bottom: -13vh;
    color: rgba(255,255,255,.028);
    font-size: min(44vw, 600px);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -.09em;
    pointer-events: none;
}

body.auth-page > .glass {
    border: 1px solid rgba(255,255,255,.65) !important;
    border-radius: 28px !important;
    background: rgba(255,255,255,.965) !important;
    box-shadow: 0 35px 100px rgba(0,0,0,.35) !important;
    backdrop-filter: blur(24px);
    padding: 46px !important;
}

body.auth-page .input-field {
    min-height: 50px;
    border-radius: 13px !important;
}

body.auth-page .btn-primary {
    min-height: 50px;
    border-radius: 13px !important;
    background: linear-gradient(135deg, #b9273f, #861326) !important;
    box-shadow: 0 12px 26px rgba(134, 19, 38, .28);
}

body.auth-page .btn-primary:hover {
    box-shadow: 0 16px 32px rgba(134, 19, 38, .36);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #c8d0dd;
    border-radius: 99px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #98a4b7;
}

@media (max-width: 1023px) {
    body.app-page main {
        padding: 22px 18px 38px !important;
    }

    body.app-page #sidebar {
        box-shadow: 22px 0 60px rgba(15, 23, 42, .28);
    }
}

@media (max-width: 640px) {
    body.app-page main {
        padding: 16px 14px 30px !important;
    }

    body.app-page .glass,
    body.app-page .metric-card {
        border-radius: 15px !important;
    }

    body.app-page .metric-card {
        min-height: 148px;
        padding: 18px !important;
    }

    body.home-page main > .glass:first-of-type {
        padding: 24px 20px !important;
        border-radius: 20px !important;
    }

    body.auth-page {
        padding: 18px;
    }

    body.auth-page > .glass {
        padding: 34px 24px !important;
        border-radius: 22px !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}

/* ==========================================================================
   MOBILE RESPONSIVE OPTIMIZATION (< 768px)
   ========================================================================== */
@media (max-width: 767px) {
    
    /* 1. Fluid Typography - Kích thước chữ tự động thu phóng mượt mà */
    body.app-page {
        font-size: clamp(14px, 4vw, 16px) !important;
    }

    h1, .device-name {
        font-size: clamp(28px, 8vw, 36px) !important;
    }

    h2 {
        font-size: clamp(16px, 5vw, 20px) !important;
    }

    /* Các số liệu hiển thị lớn */
    .sensor-value, .time-value, .mono {
        font-size: clamp(24px, 6vw, 32px) !important;
    }

    .metric-title {
        font-size: clamp(14px, 4vw, 15px) !important;
    }

    /* 2. Bố cục (Layout) - Chuyển Grid/Flex xếp ngang thành xếp dọc */
    .dashboard-grid, 
    .control-grid, 
    .environment-grid, 
    .system-grid {
        display: grid !important;
        grid-template-columns: 1fr !important; /* Chuyển thành 1 cột */
        gap: 16px !important;
    }

    /* Cho phép wrap linh hoạt với các flex container hiện tại */
    [style*="display:flex"], 
    [style*="display: flex"] {
        flex-wrap: wrap !important;
    }

    /* Đảm bảo header và phần tử icon vẫn giữ form nằm ngang */
    .metric-card-head, 
    .section-heading,
    .sensor-value-row {
        flex-wrap: nowrap !important;
    }

    /* 3. Nút nhấn & Input - Đảm bảo Touch Target tối thiểu 44x44px */
    button, 
    input[type="button"], 
    input[type="submit"], 
    .btn, 
    a.sidebar-link {
        min-height: 44px !important;
        min-width: 44px !important;
        padding: 0.8rem 1.25rem !important;
        font-size: clamp(14px, 4vw, 16px) !important;
    }

    /* Chuyển các nút hành động thành dạng khối (block/100% width) */
    .mode-selector {
        display: flex !important;
        flex-direction: row !important;
        gap: 8px !important;
        width: 100% !important;
    }
    
    .mode-selector button {
        flex: 1 !important; /* Chia đều 2 nút Thủ công/Tự động */
        width: 100% !important;
        justify-content: center !important;
    }

    /* 4. Khoảng cách (Spacing) - Thu gọn margin và padding */
    main {
        padding: 16px !important;
        gap: 20px !important;
    }

    .glass, 
    .metric-card,
    [style*="padding:40px"], 
    [style*="padding: 40px"] {
        padding: 20px !important;
        border-radius: 20px !important;
    }

    .section-heading {
        margin-bottom: 16px !important;
    }

    /* 5. Bảng dữ liệu (Tables) - Hỗ trợ vuốt ngang không vỡ layout */
    .table-wrapper, 
    .table-responsive,
    .table-container {
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        display: block !important;
        border-radius: 12px !important;
    }

    table {
        width: 100% !important;
        min-width: 600px !important;
    }

    /* 6. Sidebar (Hamburger Menu Override - nếu cần thiết bổ sung) */
    #sidebar {
        width: 280px !important;
        max-width: 85vw !important;
        padding: 20px 16px !important;
    }
    
    /* Sửa lỗi tràn nội dung (overflow) của các div thông tin kết nối */
    .mono {
        word-break: break-all !important;
    }
}