:root {
    --bg: #edf7f3;
    --bg-strong: #d8efe7;
    --panel: rgba(255, 255, 255, 0.88);
    --panel-solid: #ffffff;
    --text: #10201b;
    --muted: #62746d;
    --border: rgba(16, 32, 27, 0.1);
    --primary: #087f5b;
    --primary-dark: #075f45;
    --blue: #1c7ed6;
    --yellow: #f59f00;
    --red: #e03131;
    --green: #2f9e44;
    --shadow: 0 24px 80px rgba(17, 72, 55, 0.14);
}

body.dark {
    --bg: #071411;
    --bg-strong: #0d241d;
    --panel: rgba(14, 31, 26, 0.9);
    --panel-solid: #10251f;
    --text: #edf7f3;
    --muted: #a6bab2;
    --border: rgba(237, 247, 243, 0.12);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    font-family: "Work Sans", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(8, 127, 91, 0.24), transparent 34rem),
        radial-gradient(circle at bottom right, rgba(28, 126, 214, 0.18), transparent 32rem),
        linear-gradient(135deg, var(--bg), var(--bg-strong));
}

button,
input {
    font: inherit;
}

button {
    border: 0;
}

code {
    color: var(--primary);
    font-weight: 700;
}

.app-shell {
    width: min(1440px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 48px;
}

.topbar {
    position: sticky;
    top: 16px;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

h1,
h2,
h3,
strong {
    font-family: "Space Grotesk", sans-serif;
}

h1,
h2,
h3,
p {
    margin: 0;
}

h1 {
    font-size: clamp(1.7rem, 4vw, 3rem);
    letter-spacing: -0.06em;
}

h2 {
    font-size: clamp(1.25rem, 3vw, 1.85rem);
    letter-spacing: -0.04em;
}

.eyebrow,
.label {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.topbar__meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    color: var(--muted);
}

.topbar__meta strong {
    color: var(--text);
    font-size: 1.25rem;
}

main {
    display: grid;
    gap: 22px;
    margin-top: 24px;
}

.hero-grid,
.sensor-grid,
.chart-grid,
.control-layout {
    display: grid;
    gap: 18px;
}

.hero-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sensor-grid,
.chart-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.control-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.section,
.hero-card,
.sensor-card,
.chart-card {
    border: 1px solid var(--border);
    border-radius: 28px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.section {
    padding: 22px;
}

.panel {
    display: grid;
    align-content: start;
    gap: 18px;
}

.hero-card,
.sensor-card,
.chart-card {
    padding: 20px;
}

.hero-card {
    display: grid;
    gap: 8px;
    min-height: 144px;
    overflow: hidden;
    position: relative;
}

.hero-card::after {
    content: "";
    position: absolute;
    right: -38px;
    bottom: -48px;
    width: 130px;
    height: 130px;
    border-radius: 999px;
    background: rgba(8, 127, 91, 0.12);
}

.hero-card.accent {
    color: #ffffff;
    background: linear-gradient(135deg, #087f5b, #0b7285);
}

.hero-card.accent .label,
.hero-card.accent small {
    color: rgba(255, 255, 255, 0.78);
}

.hero-card strong {
    font-size: clamp(2rem, 4vw, 3.2rem);
    letter-spacing: -0.08em;
}

.hero-card small,
.helper-text,
.sensor-card p {
    color: var(--muted);
    line-height: 1.6;
}

.section-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.refresh-pill {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    color: var(--primary);
    background: rgba(8, 127, 91, 0.1);
    font-size: 0.84rem;
    font-weight: 700;
}

.sensor-card {
    display: grid;
    gap: 12px;
}

.card-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sensor-card strong {
    font-size: clamp(2.3rem, 6vw, 4rem);
    letter-spacing: -0.08em;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--muted);
    box-shadow: 0 0 0 6px rgba(98, 116, 109, 0.12);
}

.status-badge {
    width: fit-content;
    padding: 8px 12px;
    border-radius: 999px;
    color: #ffffff;
    background: var(--muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.safe .status-dot,
.safe .status-badge {
    background: var(--green);
}

.safe .status-dot {
    box-shadow: 0 0 0 6px rgba(47, 158, 68, 0.14);
}

.warning .status-dot,
.warning .status-badge {
    background: var(--yellow);
}

.warning .status-dot {
    box-shadow: 0 0 0 6px rgba(245, 159, 0, 0.16);
}

.critical .status-dot,
.critical .status-badge {
    background: var(--red);
}

.critical .status-dot {
    box-shadow: 0 0 0 6px rgba(224, 49, 49, 0.16);
}

.chart-card {
    min-height: 360px;
}

.chart-card h3 {
    margin-bottom: 18px;
    font-size: 1.05rem;
}

.chart-card canvas {
    width: 100%;
    max-height: 280px;
}

.feed-btn {
    min-height: 88px;
    border-radius: 24px;
    color: #ffffff;
    cursor: pointer;
    background: linear-gradient(135deg, #e8590c, #e03131);
    box-shadow: 0 18px 42px rgba(224, 49, 49, 0.26);
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.06em;
}

.primary-btn,
.ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 800;
}

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

.ghost-btn {
    color: var(--text);
    border: 1px solid var(--border);
    background: var(--panel-solid);
}

.field-row,
.schedule-grid {
    display: grid;
    gap: 12px;
}

.field-row label,
.schedule-grid label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-weight: 800;
}

input {
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    color: var(--text);
    background: var(--panel-solid);
    outline: 0;
}

input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(8, 127, 91, 0.12);
}

.schedule-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.status-list {
    display: grid;
    gap: 12px;
}

.status-list div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.status-list span {
    color: var(--muted);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
}

th,
td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--muted);
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

td {
    font-weight: 600;
}

.popup-stack {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 20;
    display: grid;
    gap: 12px;
    width: min(380px, calc(100vw - 40px));
}

.popup {
    padding: 16px;
    border-left: 6px solid var(--yellow);
    border-radius: 18px;
    color: var(--text);
    background: var(--panel-solid);
    box-shadow: var(--shadow);
    animation: slideIn 0.25s ease both;
}

.popup strong {
    display: block;
    margin-bottom: 6px;
}

.popup.critical {
    border-left-color: var(--red);
}

.popup.safe {
    border-left-color: var(--green);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1120px) {
    .hero-grid,
    .sensor-grid,
    .chart-grid,
    .control-layout {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .app-shell {
        width: min(100% - 20px, 1440px);
        padding-top: 10px;
    }

    .topbar,
    .topbar__meta,
    .section-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .hero-grid,
    .sensor-grid,
    .chart-grid,
    .control-layout,
    .schedule-grid {
        grid-template-columns: 1fr;
    }

    .topbar {
        position: static;
        border-radius: 22px;
    }
}

.device-selector {
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text);
    background: var(--panel-solid);
    font: inherit;
    font-weight: 800;
    outline: 0;
}

.device-selector:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(8, 127, 91, 0.12);
}