:root {
    --fleet-teal: #14b8a6;
    --fleet-dark: #0f172a;
    --fleet-panel: #1e293b;
    --fleet-border: #334155;
    --fleet-text: #f8fafc;
    --fleet-muted: #94a3b8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--fleet-dark);
    color: var(--fleet-text);
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 230px 1fr;
}

.sidebar {
    background: #111c31;
    border-right: 1px solid var(--fleet-border);
    padding: 24px 18px;
}

.platform-brand {
    margin-bottom: 28px;
}

.platform-logo {
    display: block;
    width: 100%;
    max-width: 190px;
    height: auto;
    object-fit: contain;
}

.nav-link {
    display: block;
    color: #cbd5e1;
    text-decoration: none;
    padding: 11px 13px;
    margin-bottom: 5px;
    border-radius: 9px;
}

.nav-link:hover {
    background: #24324b;
    color: white;
}

.main-area {
    min-width: 0;
}

.topbar {
    height: 76px;
    background: #16213a;
    border-bottom: 1px solid var(--fleet-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 26px;
}

.company-brand {
    display: flex;
    align-items: center;
    gap: 13px;
}

.company-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: white;
    border-radius: 9px;
    padding: 4px;
}

.company-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    background: #334155;
    font-weight: 800;
}

.company-name {
    font-size: 18px;
    font-weight: 700;
}

.user-avatar {
    width: 39px;
    height: 39px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--fleet-teal);
    color: #062c2a;
    font-weight: 900;
}

.workspace {
    padding: 30px;
}

.card {
    background: var(--fleet-panel);
    border: 1px solid var(--fleet-border);
    border-radius: 16px;
    padding: 26px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}

input[type="text"],
input[type="file"] {
    width: 100%;
    max-width: 520px;
    padding: 11px;
    border: 1px solid #475569;
    border-radius: 8px;
    background: #0f172a;
    color: white;
}

button {
    border: 0;
    border-radius: 8px;
    padding: 11px 18px;
    background: var(--fleet-teal);
    color: #062c2a;
    font-weight: 800;
    cursor: pointer;
}

.notice {
    margin-bottom: 18px;
    padding: 12px;
    border-radius: 8px;
    background: #123c38;
    border: 1px solid #1d6a63;
}