:root {
    --bg: #f4f7f5;
    --surface: #ffffff;
    --ink: #1e2421;
    --muted: #65746d;
    --line: #d6ded9;
    --green: #198b63;
    --green-soft: #dff3ea;
    --coral: #d74d43;
    --yellow: #f2c94c;
    --shadow: 0 18px 50px rgba(30, 36, 33, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
    letter-spacing: 0;
}

button,
input,
select {
    font: inherit;
}

button {
    min-height: 44px;
    border: 0;
    border-radius: 8px;
    background: var(--green);
    color: #ffffff;
    cursor: pointer;
    font-weight: 700;
}

button:disabled {
    cursor: wait;
    opacity: 0.65;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid var(--yellow);
    outline-offset: 2px;
}

input,
select {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    color: var(--ink);
    padding: 10px 12px;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.eyebrow {
    margin: 0;
    color: var(--green);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.auth-page {
    display: grid;
    min-height: 100vh;
    padding: 24px;
    place-items: center;
}

.auth-shell {
    display: grid;
    width: min(980px, 100%);
    min-height: 620px;
    grid-template-columns: minmax(300px, 420px) 1fr;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.auth-form-panel {
    display: grid;
    align-content: center;
    gap: 26px;
    padding: 42px;
}

.auth-form-panel h1,
.section-heading h1 {
    margin: 0;
    font-size: 42px;
    line-height: 1.1;
}

.login-form {
    display: grid;
    gap: 16px;
}

.login-form button,
.add-device-form button {
    width: 100%;
}

.form-link,
.ghost-link {
    color: var(--green);
    font-weight: 800;
    text-decoration: none;
}

.form-error {
    margin: 0;
    border-left: 4px solid var(--coral);
    color: var(--coral);
    font-weight: 700;
    padding-left: 12px;
}

.form-success {
    margin: 0;
    border-left: 4px solid var(--green);
    color: var(--green);
    font-weight: 700;
    padding-left: 12px;
}

.auth-visual,
.home-visual {
    position: relative;
    min-height: 100%;
}

.auth-visual img,
.home-visual img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.devices-page {
    min-height: 100vh;
}

.topbar {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.92);
    padding: 0 28px;
}

.brand,
.account {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand {
    color: var(--ink);
    font-weight: 800;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 8px;
    background: var(--green);
    color: #ffffff;
}

.account {
    color: var(--muted);
    font-weight: 700;
}

.ghost-button {
    min-height: 38px;
    border: 1px solid var(--line);
    background: #ffffff;
    color: var(--ink);
    padding: 0 14px;
}

.device-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
    gap: 28px;
    padding: 28px;
}

.device-workspace {
    min-width: 0;
}

.section-heading {
    display: grid;
    gap: 8px;
    margin-bottom: 24px;
}

.add-device-form {
    display: grid;
    grid-template-columns: minmax(140px, 1fr) minmax(180px, 1.5fr) minmax(150px, 1fr) 136px;
    gap: 14px;
    align-items: end;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 18px 0;
}

.claim-controller-form {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) 220px;
    gap: 14px;
    align-items: end;
    border-bottom: 1px solid var(--line);
    padding: 18px 0;
}

.admin-form {
    grid-template-columns: minmax(180px, 1fr) minmax(220px, 1fr) minmax(170px, 0.8fr) 140px;
}

.status-line {
    min-height: 28px;
    color: var(--muted);
    font-weight: 700;
    padding: 14px 0 6px;
}

.controller-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.controller-list span {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    padding: 7px 10px;
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.device-card {
    display: grid;
    min-height: 210px;
    gap: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 18px;
    box-shadow: 0 8px 28px rgba(30, 36, 33, 0.08);
}

.device-card-header {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 12px;
    align-items: center;
}

.device-icon {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 8px;
    background: var(--green-soft);
    color: var(--green);
    font-size: 24px;
}

.device-name {
    min-width: 0;
}

.device-name h2 {
    margin: 0;
    overflow-wrap: anywhere;
    font-size: 20px;
    line-height: 1.25;
}

.device-name p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.device-state {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-weight: 700;
}

.state-pill {
    min-width: 98px;
    border-radius: 8px;
    background: #eef2ef;
    color: var(--muted);
    padding: 8px 10px;
    text-align: center;
}

.state-pill.is-on {
    background: var(--green-soft);
    color: var(--green);
}

.device-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

.single-action {
    grid-template-columns: 1fr;
}

.rename-form {
    display: grid;
    gap: 12px;
    border-top: 1px solid var(--line);
    padding-top: 14px;
}

.rename-form[hidden] {
    display: none;
}

.rename-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.property-list {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-weight: 700;
}

.property-list span {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-radius: 8px;
    background: #f2f5f3;
    padding: 10px 12px;
}

.property-list b {
    color: var(--ink);
}

.danger-button {
    border: 1px solid rgba(215, 77, 67, 0.35);
    background: #ffffff;
    color: var(--coral);
}

.empty-state {
    display: none;
    margin: 20px 0 0;
    border: 1px dashed var(--line);
    border-radius: 8px;
    color: var(--muted);
    font-weight: 700;
    padding: 22px;
    text-align: center;
}

.empty-state.is-visible {
    display: block;
}

.home-visual {
    overflow: hidden;
    min-height: 420px;
    border-radius: 8px;
}

.home-summary {
    position: absolute;
    right: 16px;
    bottom: 16px;
    left: 16px;
    display: grid;
    gap: 4px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.92);
    padding: 14px;
}

.home-summary span {
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.home-summary strong {
    font-size: 22px;
}

.admin-layout {
    padding: 28px;
}

.admin-message {
    margin: 16px 0;
}

.controller-table {
    display: grid;
    gap: 8px;
    margin-top: 18px;
}

.controller-row {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) minmax(180px, 1fr) minmax(150px, 0.8fr) minmax(120px, 0.8fr) minmax(90px, 0.6fr);
    gap: 12px;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 12px;
}

.controller-head {
    background: #edf4ef;
    color: var(--muted);
    font-weight: 800;
}

@media (max-width: 900px) {
    .auth-shell,
    .device-layout {
        grid-template-columns: 1fr;
    }

    .auth-shell {
        min-height: auto;
    }

    .auth-visual {
        min-height: 260px;
        order: -1;
    }

    .add-device-form {
        grid-template-columns: 1fr 1fr;
    }

    .claim-controller-form,
    .admin-form,
    .controller-row {
        grid-template-columns: 1fr;
    }

    .home-visual {
        min-height: 280px;
    }
}

@media (max-width: 600px) {
    .auth-page,
    .device-layout {
        padding: 16px;
    }

    .auth-form-panel {
        padding: 26px;
    }

    .auth-form-panel h1,
    .section-heading h1 {
        font-size: 34px;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px;
    }

    .account {
        width: 100%;
        justify-content: space-between;
    }

    .add-device-form,
    .claim-controller-form,
    .device-actions {
        grid-template-columns: 1fr;
    }
}