:root {
    --background: #06111d;
    --background-soft: #091827;
    --panel: #0d2134;
    --panel-light: #122c45;
    --border: #1e3b55;
    --text: #f4f8fc;
    --muted: #9eb3c7;
    --blue: #168cff;
    --blue-dark: #0d67bd;
    --yellow: #ffd642;
    --yellow-dark: #cba800;
    --green: #24c875;
    --orange: #ff9f31;
    --red: #ff5964;
    --whatsapp: #25d366;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--background);
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(22, 140, 255, 0.16), transparent 30%),
        var(--background);
    color: var(--text);
    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    padding-bottom: calc(82px + env(safe-area-inset-bottom));
}

button,
input,
select {
    font: inherit;
}

button {
    border: 0;
    cursor: pointer;
    touch-action: manipulation;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.hidden {
    display: none !important;
}

.muted {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.4;
}

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

.login-card {
    width: min(100%, 420px);
    padding: 28px 22px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: linear-gradient(145deg, var(--panel), var(--background-soft));
    box-shadow: var(--shadow);
}

.login-card h1 {
    margin: 15px 0 0;
    font-size: 2rem;
}

.logo-mark {
    display: grid;
    place-items: center;
    width: 66px;
    height: 66px;
    border-radius: 20px;
    background: linear-gradient(145deg, var(--blue), var(--blue-dark));
    color: var(--yellow);
    font-size: 1.45rem;
    font-weight: 900;
    box-shadow: 0 10px 25px rgba(22, 140, 255, 0.3);
}

form {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 700;
}

input,
select {
    width: 100%;
    min-height: 49px;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: 13px;
    outline: none;
    background: #071827;
    color: var(--text);
}

input:focus,
select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(22, 140, 255, 0.14);
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding:
        calc(14px + env(safe-area-inset-top))
        16px
        14px;
    border-bottom: 1px solid var(--border);
    background: rgba(6, 17, 29, 0.94);
    backdrop-filter: blur(16px);
}

.app-header h1 {
    margin: 0;
    font-size: 1.35rem;
    color: var(--yellow);
}

.header-subtitle {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 0.78rem;
}

.icon-button,
.secondary,
.primary,
.danger,
.danger-outline,
.whatsapp {
    min-height: 45px;
    padding: 10px 15px;
    border-radius: 12px;
    font-weight: 850;
}

.icon-button,
.secondary {
    border: 1px solid var(--border);
    background: var(--panel-light);
    color: var(--text);
}

.primary {
    background: var(--blue);
    color: white;
}

.primary:active {
    background: var(--blue-dark);
}

.danger {
    background: var(--red);
    color: white;
}

.danger-outline {
    border: 1px solid rgba(255, 89, 100, 0.55);
    background: rgba(255, 89, 100, 0.1);
    color: #ff9098;
}

.whatsapp {
    background: var(--whatsapp);
    color: #042a15;
}

.full {
    width: 100%;
}

main {
    width: min(100%, 980px);
    margin: 0 auto;
    padding: 14px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.panel {
    margin-bottom: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 19px;
    background: linear-gradient(145deg, var(--panel), #0a1b2c);
    box-shadow: var(--shadow);
}

.panel h2 {
    margin: 0;
    font-size: 1.08rem;
}

.panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.form-grid {
    display: grid;
    gap: 14px;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.button-row > button {
    flex: 1 1 145px;
}

.progress-track {
    width: 100%;
    height: 13px;
    margin: 15px 0;
    overflow: hidden;
    border-radius: 999px;
    background: #06111d;
    border: 1px solid var(--border);
}

.progress-bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--blue), var(--yellow));
    transition: width 0.35s ease;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.metric {
    min-width: 0;
    padding: 13px 11px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(6, 17, 29, 0.58);
}

.metric span {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 0.75rem;
}

.metric strong {
    display: block;
    overflow-wrap: anywhere;
    color: var(--yellow);
    font-size: 1rem;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 12px;
}

.metadata-item {
    padding: 10px;
    border-radius: 12px;
    background: rgba(22, 140, 255, 0.08);
}

.metadata-item span {
    display: block;
    color: var(--muted);
    font-size: 0.7rem;
}

.metadata-item strong {
    display: block;
    margin-top: 4px;
    overflow-wrap: anywhere;
    font-size: 0.86rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 27px;
    padding: 5px 9px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 900;
    white-space: nowrap;
}

.badge.online,
.badge.completed {
    background: rgba(36, 200, 117, 0.16);
    color: #55e89b;
}

.badge.inattivo,
.badge.countdown {
    background: rgba(255, 159, 49, 0.16);
    color: #ffbd6c;
}

.badge.running {
    background: rgba(22, 140, 255, 0.18);
    color: #70b9ff;
}

.badge.offline,
.badge.neutral {
    background: rgba(158, 179, 199, 0.12);
    color: var(--muted);
}

.badge.disabilitato,
.badge.error,
.badge.disconnected,
.badge.invalid,
.badge.cancelled {
    background: rgba(255, 89, 100, 0.15);
    color: #ff8d95;
}

.client-list,
.history-list {
    display: grid;
    gap: 11px;
}

.client-card,
.history-card {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(6, 17, 29, 0.65);
}

.client-top,
.history-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.client-name,
.history-title {
    margin: 0;
    color: var(--text);
    font-size: 1rem;
    overflow-wrap: anywhere;
}

.client-details,
.history-details {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.detail {
    padding: 9px;
    border-radius: 11px;
    background: rgba(18, 44, 69, 0.65);
}

.detail span {
    display: block;
    color: var(--muted);
    font-size: 0.68rem;
}

.detail strong {
    display: block;
    margin-top: 3px;
    overflow-wrap: anywhere;
    font-size: 0.81rem;
}

.start-test {
    width: 100%;
    margin-top: 12px;
    background: var(--yellow);
    color: #231d00;
}

.loading-card,
.empty-card {
    padding: 22px;
    border: 1px dashed var(--border);
    border-radius: 15px;
    color: var(--muted);
    text-align: center;
}

.bottom-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 7px;
    padding:
        9px
        10px
        calc(9px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--border);
    background: rgba(6, 17, 29, 0.96);
    backdrop-filter: blur(16px);
}

.nav-button {
    min-height: 48px;
    border-radius: 13px;
    background: transparent;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 850;
}

.nav-button.active {
    background: var(--blue);
    color: white;
}

.information-panel {
    display: grid;
    gap: 11px;
}

.information-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 11px 0;
    border-bottom: 1px solid var(--border);
}

.information-row:last-child {
    border-bottom: 0;
}

.information-row span {
    color: var(--muted);
}

.error-text {
    min-height: 20px;
    color: #ff8d95;
    text-align: center;
}

.toast {
    position: fixed;
    top: calc(16px + env(safe-area-inset-top));
    right: 14px;
    left: 14px;
    z-index: 100;
    max-width: 520px;
    margin: auto;
    padding: 13px 15px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #102a43;
    color: white;
    box-shadow: var(--shadow);
    text-align: center;
    font-weight: 750;
}

.toast.error {
    border-color: rgba(255, 89, 100, 0.7);
    background: #401923;
}

.toast.success {
    border-color: rgba(36, 200, 117, 0.65);
    background: #103b29;
}

@media (min-width: 720px) {
    main {
        padding: 20px;
    }

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

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

    .client-list,
    .history-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .bottom-nav {
        right: 50%;
        left: auto;
        width: 520px;
        transform: translateX(50%);
        border: 1px solid var(--border);
        border-bottom: 0;
        border-radius: 18px 18px 0 0;
    }
}